Air outlet device

Abstract

The air outlet device (100) comprises upper and lower air guide plates (31); a plurality of left and right air guide plates (41) arranged along a direction intersecting the upper and lower air guide plates (31) and arranged on the upstream side closer to the wind flow direction than the upper and lower air guide plates (31); and a first inclined component (21) inclined from the upstream side to the downstream side of the wind flow direction so as to increase the opening area of ​​the opening portion (110). When the upper and lower air guide plates (31) are rotated to a maximum angle state where the upstream end portion (31c) of the upper and lower air guide plates (31) is closest to the first inclined component (21), the upstream end portion (31c) is located on the downstream side closer to the wind flow direction than the vertex (21a). The convex portion (6a) arranged adjacent to the apex (21a) on the upstream side closer to the wind flow direction than the apex (21a) of the first inclined component (21) is configured to protrude further inward of the flow path (11) than the apex (21a) in a direction perpendicular to the rotation axis of the upper and lower air guide plates (31) and the wind flow direction, and to extend in a manner that crosses multiple left and right air guide plates (41) when viewed from the wind flow direction.

Description

Technical Field

[0001] The present invention relates to a ventilator. Background Art

[0002] JP5597423B discloses an air conditioning register, which includes first inclined surfaces inclined in a manner expanding toward a vehicle compartment at the upper and lower parts of an opening, and fins provided in the opening and changing the blowing direction of air in the vertical direction by adjusting the inclination angle in the vertical direction. Summary of the invention

[0003] However, in the air conditioning air conditioning device of JP5597423B, as described in the document Figure 6 As shown in C, when the air is blown downward, part of the air is blown upward. That is, in the air conditioning register of JP5597423B, part of the air flows in the opposite direction to the direction in which the air is blown out, depending on the blowing direction of the air.

[0004] The inventor of the present application has found that the phenomenon that a part of the air blown out from the opening flows along the first inclined surface on the upper side (i.e., toward the upper side) when the air conditioner blows out air downward is based on the configuration of the ridgeline of the fin. That is, the inventor of the present application infers that the above phenomenon is caused by the air flowing from the duct to the air conditioner being adsorbed on the first inclined surface due to the Coanda effect (also known as the "Coanda effect") when passing through the ridgeline.

[0005] Among them, the configuration of the ridgeline is determined by the design of the air conditioner. As a design of the air conditioner, for example, it is also possible to consider a design in which the ridgeline is located at a deep position on the upstream side of the air flow direction in the air conditioner, and the first inclined surface extends from a position closer to the upstream side of the air flow direction in the air conditioner than the fin toward the downstream side. This design allows the first inclined surface, which is the appearance part, to enter the interior of the air conditioner, thereby creating a design with a sense of depth and luxury. However, in this design, as described above, the wind flowing from the duct to the air conditioner will pass directly over the ridgeline, so there is a problem that the wall effect is easily generated.

[0006] On the other hand, the following situation can also be considered: the fin itself is extended to the upstream side of the wind flow direction in the air conditioning register to close the space between the fin and the first inclined surface, thereby suppressing the generation of the wall effect. However, the fin (louver) is usually equipped with an operating knob, so before the fin contacts the first inclined surface, the operating knob will interfere with the first inclined surface, making it impossible to close the space between the fin and the first inclined surface.

[0007] An object of the present invention is to suppress the generation of the Coanda effect on a component forming a part of an opening in an air outlet device in which the component is inclined so that the opening area of ​​the opening increases from the upstream side toward the downstream side in the wind flow direction.

[0008] According to a certain embodiment of the present invention, an air outlet device for blowing air out of an opening through a flow path comprises: a first air guide plate, which is provided with a handle; a plurality of second air guide plates, which are arranged along a direction intersecting with the first air guide plate and arranged on the upstream side closer to the wind flow direction than the first air guide plate; a pair of side walls, which support the first air guide plate in a manner that enables the first air guide plate to rotate and are used to form a part of the opening; and a first inclined component, which forms another part of the opening between the pair of side walls and is inclined from the upstream side to the downstream side in the wind flow direction to increase the opening area of ​​the opening. The first inclined component has an inclined vertex located on the upstream side of the wind flow direction. When the first air guide plate is rotated to the maximum angle state where the upstream end of the upstream side of the first air guide plate in the wind flow direction is closest to the first inclined component, the upstream end is located on the downstream side closer to the wind flow direction than the vertex on the upstream side of the wind flow direction of the first inclined component, or is located at the same position in the wind flow direction. The air outlet device also has a convex portion arranged adjacent to the vertex on the upstream side closer to the wind flow direction than the vertex. The convex portion is provided so as to protrude further inward of the flow path than the apex in a direction perpendicular to the rotation axis of the first air guide plate and the air flow direction, and to extend across the plurality of second air guide plates when viewed from the air flow direction.

[0009] In this aspect, the wind is prevented from passing through the apex on the upstream side of the first inclined member in the wind flow direction, thereby preventing the Coanda effect from occurring. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a front view of the air outlet device according to the embodiment of the present invention.

[0011] Figure 2 for Figure 1 The schematic diagram of the cross section of the air outlet device when blowing air upward is equivalent to Figure 1FIG. 2 is a diagram of the II-II section.

[0012] Figure 3 For along Figure 1 Schematic diagram of the III-III section.

[0013] Figure 4 for Figure 3 Schematic diagram of section IV-IV.

[0014] Figure 5 This is a schematic diagram of the cross section of the air outlet device when blowing air upward, which is equivalent to Figure 1 FIG. 2 is a diagram of the II-II section.

[0015] Figure 6 This is a schematic diagram of the cross section of the air outlet device when blowing air downward, which is equivalent to Figure 1 FIG. 2 is a diagram of the II-II section.

[0016] Figure 7 A schematic diagram of a cross section of an air outlet device according to a modified example of an embodiment of the present invention, which is equivalent to Figure 1 FIG. 2 is a diagram of the II-II section.

[0017] Figure 8 A schematic diagram of a cross section of an air outlet device according to another modified example of an embodiment of the present invention, which is equivalent to Figure 1 FIG. 2 is a diagram of the II-II section.

[0018] Fig. 9 is a schematic diagram of a cross section of the air outlet device of the comparative example, which is equivalent to Figure 1 FIG. 2 is a diagram of the II-II section. DETAILED DESCRIPTION

[0019] Hereinafter, an air outlet device 100 according to an embodiment of the present invention will be described with reference to the drawings.

[0020] First, refer to Figures 1 to 4 , the structure of the air outlet device 100 is described.

[0021] Figure 1 It is a front view of the air outlet device 100. Figure 2 for Figure 1 The schematic diagram of the cross section of the air outlet device 100 when blowing air upward is equivalent to Figure 1 Schematic diagram of section II-II. Figure 3 For along Figure 1 Schematic diagram of the III-III section. Figure 4 for Figure 3 Schematic diagram of section IV-IV.

[0022] exist Figure 1In the figure, the up-down direction on the paper is the up-down direction of the air outlet device 100. The left-right direction on the paper is the left-right direction of the air outlet device 100. The vertical direction on the paper is the wind flow direction of the air outlet device 100.

[0023] exist Figure 2 In FIG. 1 , the left side of the paper is the upstream side of the wind flow direction in the air outlet device 100. The right side of the paper is the downstream side of the wind flow direction in the air outlet device 100. Figure 3 In the figure, the upper side of the paper is the upstream side of the wind flow direction in the air outlet device 100. The lower side of the paper is the downstream side of the wind flow direction in the air outlet device 100.

[0024] The air outlet device 100 is used in a vehicle, for example, installed on an instrument panel or a center cluster in a vehicle cabin. The air outlet device 100 is a device that guides air whose temperature and humidity have been adjusted by an air conditioner (not shown) into the vehicle cabin.

[0025] like Figures 1 to 3 As shown, the air outlet device 100 includes a flow path component 1 (also referred to as a housing or a shell), a bezel portion 2 , a first air guide plate portion 3 , and a second air guide plate portion 4 .

[0026] The flow path component 1 is a substantially cylindrical component. Figure 3 As shown, an inlet 12 and an outlet 13 are opened at both ends of the flow path member 1 .

[0027] like Figure 2 and Figure 3 As shown, a flow path 11 (a space for air flow) through which wind can pass is formed inside the flow path component 1. A duct (not shown) is connected to the inlet 12. The wind sent from the air-conditioning device via the duct flows into the flow path 11 from the inlet 12. The wind flowing into the flow path 11 flows in the flow path 11 and flows out to the frame 2 from the outlet 13. The direction of the wind flowing from upstream to downstream in the flow path 11 as a whole is called the "wind flow direction", and the flow that is not changed in direction by the first air guide plate portion 3 and the second air guide plate portion 4 is called the "wind flow direction". In other words, the "wind flow direction" is the extension direction of the flow path 11, or the direction parallel to the inner wall 11a of the flow path 11. The flow of wind will be described in detail later.

[0028] like Figure 2 and Figure 3 As shown, the frame 2 is provided on the side of the outlet 13 and is a portion for forming an opening 110 for blowing out the wind in the air outlet device 100. The frame 2 has a first inclined member 21, a pair of side walls 22, 23 and an interior panel 24.

[0029] like Figure 1As shown, the first inclined member 21 is a member for forming a portion of the opening 110 (a portion for defining the outline of the opening 110). The first inclined member 21 is disposed at a position below the opening 110. Figure 2 As shown, the first inclined member 21 is a member having a surface inclined with the vertex 21a as a starting point so that the opening area of ​​the opening portion 110 increases from the upstream side to the downstream side of the wind flow direction in the air outlet device 100. The tangent line near the vertex 21a of the first inclined member 21 and the wind flow direction (or the direction when the wind flows straight from the inlet 12 to the opening portion 110) are in the Figure 2 ), that is, the inclination angle R1 is within the range (0 degrees < R1 < 40 degrees) where the Coanda effect, in which the wind is attracted to the surface of the first inclined member 21, is likely to occur. The Coanda effect is particularly likely to occur when the inclination angle R1 is within the range of 0 degrees < R1 < 30 degrees. The Coanda effect occurs most significantly when the inclination angle R1 is 24 degrees.

[0030] like Figure 1 and Figure 2 As shown, the first inclined component 21 forms the bottom of the opening 110. Usually, the air outlet device 100 is arranged in the vehicle compartment below the position of the passenger's eyes. Therefore, when the passenger observes the air outlet device 100, it is easy for the passenger to visually confirm the bottom of the opening 110. The first inclined component 21 of this embodiment becomes a decorative panel (finisher) that can be visually confirmed by the passenger in the vehicle compartment. The surface of the first inclined component 21 (the surface exposed to the vehicle compartment) can be plated, painted, film-decorated, matte-treated, decorated, etc., and can also be decorated with synthetic leather, genuine leather, wood grain film, etc. As shown in FIG. Figure 2 As shown, the first inclined member 21, which can also function as a decorative panel, is gently inclined and enters the depth of the opening 110 (at least the range where the first inclined member 21 is opposite to the upper and lower air guide plates 31), thereby achieving a design with a sense of depth in which the decorative panel enters the interior of the air outlet device 100. This can give passengers a high-end impression. In addition, Figure 1 As shown, in this embodiment, the first inclined member 21 extends beyond the opening 110 in the width direction ( Figure 1 The left-right direction of the device extends.

[0031] like Figure 1 As shown in FIG. 1 , the pair of side walls 22 and 23 are components for separating the left and right directions of the opening 110. That is, the pair of side walls 22 and 23 form a part of the opening 110. Figure 3 As shown, the pair of side walls 22 and 23 are provided with bearing portions 22 a and 23 a for supporting upper and lower air guide plates 31 described later.

[0032] The pair of side walls 22 and 23 may also have a shape imitating the upper and lower air guide plates 31 as disclosed in European Patent Application Publication No. 028965 (EP0289065A1). Figure 1 The position configuration thickness of a pair of side walls 22, 23 (at Figure 1 The length of the upper and lower air guide plates 31 in the vertical direction of the paper surface shown in FIG. 3 is substantially the same as the upper and lower air guide plates 31 and is substantially the same as the upper and lower air guide plates 31. Figure 1 The pseudo wind guide plate side wall protruding from the paper surface to the front side (the side close to the observer) replaces the pair of side walls 22 and 23, and the pseudo wind guide plate side wall supports the structure of the upper and lower wind guide plates 31. In this structure, when the upper and lower wind guide plates 31 are in a reference state described later, the upper and lower wind guide plates 31 and the pseudo wind guide plate side wall are located in a straight line, and it looks like the wind guide plate has a width wider than the actual upper and lower wind guide plates 31.

[0033] like Figure 1 As shown in FIG. 2 , the interior panel 24 is a member disposed above the first inclined member 21 and facing the first inclined member 21. Figure 2 As shown, the interior panel 24 is a member having a shape that is inclined at an inclination angle different from the inclination angle R1 of the first inclined member 21 so that the opening area of ​​the opening portion 110 increases from the upstream side to the downstream side in the wind flow direction. Figure 2 The angle between the lines (shown by dotted lines in FIG. 1 ), that is, the inclination angle R2, is greater than 40 degrees.

[0034] Furthermore, the interior panel 24 forms the opening 110 together with the first inclined member 21 and the pair of side walls 22 and 23. In other words, the opening 110 is formed by the first inclined member 21, the pair of side walls 22 and 23, and the interior panel 24.

[0035] The interior panel 24 is a decorative panel (interior member) that can be visually recognized by passengers in the vehicle cabin, and is decorated the same as or differently from the first tilting member 21 .

[0036] like Figures 1 to 3 As shown, the first air guide plate portion 3 includes upper and lower air guide plates 31 as first air guide plates, a handle 32 and a fork-shaped member 33 .

[0037] The upper and lower air guide plates 31 are generally plate-shaped components. Figure 3As shown, the upper and lower air guide plates 31 are formed so that their width L1 is substantially the same as the width of the opening 110. In addition, the upper and lower air guide plates 31 are formed so that their length L2 (length in the wind flow direction) does not interfere with the inner wall 11a of the flow path 11, the inner wall of the outlet 13, or the inner wall of the opening 110a when the upper and lower air guide plates 31 rotate.

[0038] The upper and lower air guide plates 31 are supported by a pair of side walls 22 and 23 and are arranged in the opening 110. The shafts 31a and 31b of the upper and lower air guide plates 31 serve as rotation axes and are supported by the side walls 22 and 23. Figure 2 The air outlet device 100 can rotate in the up-down direction around the rotation center O shown.

[0039] like Figure 2 and Figure 4 As shown, the handle 32 is a component installed on the upper and lower air guide plates 31. The handle 32 is installed so that it can be moved in the left and right directions of the air outlet device 100 (in Figure 3 If the upper and lower air guide plates 31 are rotated in the vertical direction of the air outlet device 100 with the shafts 31a and 31b as the center, the handle 32 and the upper and lower air guide plates 31 are rotated in the vertical direction of the air outlet device 100 together (refer to Figure 2 ).like Figure 2 As shown in FIG. 1 , the end 32a of the handle 32 is the end on the upstream side of the wind flow direction of the handle 32. In addition, the end 32b is Figure 2 The end closest to the first inclined member 21 in the maximum angle state shown (described later in detail). Figure 2 As shown in FIG. 1 , the handle 32 is installed to be able to slide on the lower surface of the upper and lower air guide plates 31 (the surface opposite to the first inclined member 21), so the handle 32 is partially present between the upper and lower air guide plates 31 and the first inclined member 21. In addition, the handle 32 may also be installed in a Figure 2 The upper and lower air guide plates 31 are mounted in a manner that surrounds the outer periphery of the upper and lower air guide plates 31 in the cross section.

[0040] like Figure 2 As shown, the user moves the handle 32 in the up-down direction, thereby the upper and lower air guide plates 31 and the handle 32 rotate around the rotation center O. The upper and lower air guide plates 31 change the flow direction of the air flowing out of the air conditioner according to the arrangement within the maximum rotation range as the rotational range.

[0041] In the maximum rotation range, the angle of the upper and lower air guide plates 31 when the air outlet device 100 blows the air upward is called the "maximum angle", and the state of the upper and lower air guide plates 31 at this time is called the "maximum angle state" (refer to Figure 2). The maximum angle state is the angle at which the upstream end 31c of the upper and lower air guide plates 31 on the upstream side of the wind flow direction is closest to the first inclined member 21 in the maximum rotation range. In addition, the end of the upper and lower air guide plates 31 closest to the first inclined member 21 in the maximum angle state is referred to as the adjacent end 31d. Figure 2 In the embodiment, the upstream end 31c and the adjacent end 31d are at different positions, but may be at the same position. That is, in the maximum angle state, the upstream end 31c may be at a position closest to the first inclined member 21 in the upper and lower air guide plates 31.

[0042] On the other hand, in the maximum rotation range, the angle of the upper and lower air guide plates 31 when the air outlet device 100 blows the air downward is called the "reverse maximum angle", and the state of the upper and lower air guide plates 31 at this time is called the "reverse maximum angle state" (refer to the following description). Figure 6 ).

[0043] In addition, in the maximum angle range, the angle of the upper and lower air guide plates 31 parallel to the inner wall 11a of the flow path 11 is set to Figure 2 The angle of the upper and lower air guide plates 31 shown by the double-dashed lines in the figure is called the "reference angle". The reference angle is the angle at which the air outlet device 100 blows air toward the passenger's head when a passenger of a specified height (e.g., 175 cm) is seated. The state in which the upper and lower air guide plates 31 are at the reference angle is called the "reference state". Figure 2 In FIG. 1 , the reference angle is shown by a dot-dash line N. Figure 2 In the figure, the line N and the inner wall 11 a of the flow path 11 appear to be at an angle, but in fact, in the reference state, the two are parallel.

[0044] like Figure 3 As shown in FIG. 1 , a fork-shaped member 33 is connected to the end of the handle 32 on the upstream side in the wind flow direction. Figure 4 As shown, the handle 32 and the fork-shaped member 33 are connected via a pin 34. Figure 3 As shown, a pin member 48 of the second air guide plate 4 described later is fitted between the protrusions 33a and 33b of the fork-shaped member 33.

[0045] like Figure 1 and Figure 3 As shown in FIG. 1 , the second air guide plate portion 4 includes a plurality of left and right air guide plates 41 to 46 as second air guide plates, a link member 47, and a pin member 48. Figure 3 As shown, the second air guide plate portion 4 is arranged on the upstream side of the first air guide plate portion 3 in the air flow direction in the flow path 11 .

[0046] like Figure 1As shown in FIG. 1 , the plurality of left and right air guide plates 41 to 46 are connected by a plurality of link members 47. The left and right air guide plates 41 to 46 are arranged in a direction intersecting the upper and lower air guide plates 31 and are arranged on the upstream side of the wind flow direction more closely than the upper and lower air guide plates 31. In addition, the left and right air guide plates 41 to 46 are centered on a predetermined axis. Figure 1 Rotate left and right (in Figure 2 , the left and right air guide plates 44 and the shaft portions 44a of the left and right air guide plates 44 are shown. The left and right air guide plates 44 closest to the space between the protrusions 33a and 33b of the fork-shaped member 33 among the plurality of left and right air guide plates 41 to 46 are provided with a pin member 48 for connecting the second air guide plate portion 4 and the fork-shaped member 33 (see Figures 1 to 4 ).

[0047] If the handle 32 and the fork-shaped member 33 are moved in the left and right directions of the air outlet device 100 (in Figure 3 When the pin member 48 rotates, the left and right air guide plates 41 to 46 are tilted in the rotation direction of the pin member 48 (i.e., the left and right direction of the air outlet device 100). The left and right air guide plates 41 to 46 change the left and right flow direction of the air flowing out of the air conditioner according to the tilted state.

[0048] like Figure 2 As shown, the flow path 11 in the flow path component 1 is provided with an auxiliary upper and lower air guide plate 5. The auxiliary upper and lower air guide plate 5 is connected to the upper and lower air guide plate 31 by means of a connecting member 51 (see Figure 1 As the upper and lower air guide plates 31 and the handle 32 rotate in the vertical direction of the air outlet device 100, the auxiliary upper and lower air guide plates 5 also rotate in the same direction as the upper and lower air guide plates 31 and the handle 32. The auxiliary upper and lower air guide plates 5 change the vertical flow direction of the air flowing out of the air conditioner.

[0049] like Figure 2 As shown, a convex member 6 and a guide member 7 are arranged in the flow path 11 of the flow path member 1 .

[0050] Here, before describing the convex member 6 and the guide member 7, the details of the arrangement of the apex 21a of the first inclined member 21, which is a factor determining the arrangement of the convex member 6 and the guide member 7, will be described.

[0051] like Figure 2 As shown, the vertex 21a is the part where the opening area of ​​the opening 110 is narrowest in the first inclined member 21. In addition, the vertex 21a is the end on the upstream side in the wind flow direction. That is, the vertex 21a is the part of the first inclined member 21 closest to the outlet 13 of the flow path member 1.

[0052] like Figure 2 As shown, the apex 21a is arranged on the upstream side in the wind flow direction relative to the upstream end portion 31c of the upper and lower air guide plates 31 in the maximum angle state.

[0053] Next, the convex member 6 and the guide member 7 will be described.

[0054] like Figure 2 As shown, the convex member 6 is arranged at a position adjacent to the apex 21a of the first inclined member 21 on the upstream side in the wind flow direction. The convex member 6 has a convex portion 6a and a second inclined portion 6b.

[0055] The convex portion 6a is provided so as to extend across all the left and right wind guide plates 41 to 46 when viewed from the wind flow direction. The convex portion 6a is a portion protruding further toward the inside of the flow path 11 than the apex 21a. The inside of the flow path 11 refers to the side in the direction away from the inner peripheral surface of the flow path 11 forming the flow path component 1, that is, from the inner wall 11a on the lower side of the flow path component 1 toward the inner wall 11a on the lower side of the flow path component 1. Figure 2 In other words, the convex portion 6a is located on one side of the position of the first air guide plate portion 3 in the reference state shown by the double-dashed line. It can also be said that the convex portion 6a is located in a direction perpendicular to the direction of the rotation axis of the upper and lower air guide plates 31 and the wind flow direction (i.e., Figure 2 In the approximate up-down direction of the air flow path 11, the convex portion 6a may be arranged to extend in a manner that crosses a portion of the left and right air guide plates 41 to 46 (a plurality of the left and right air guide plates 41 to 46) when viewed from the wind flow direction.

[0056] More specifically, the convex portion 6a is arranged in a direction perpendicular to the direction of the rotation axis of the upper and lower air guide plates 31 and the wind flow direction (ie, Figure 2 The convex portion 6a protrudes upward (in a substantially vertical direction) more than the adjacent end portion 31d of the upper and lower air guide plates 31 in the maximum angle state. Furthermore, the convex portion 6a is arranged between the upper and lower air guide plates 31 and the left and right air guide plates 41 to 46 in the wind flow direction.

[0057] The convex portion 6a protrudes 3 mm further than the apex 21a. Preferably, the rotation trajectory of the first air guide plate portion 3 from the reference state to the maximum angle state (connecting Figure 2 The position of the end 32a shown in solid line in FIG. Figure 2 Within the range of the arc-shaped end portion 32a indicated by the double-dashed line in FIG. 1 , the convex portion 6a protrudes more than 3 mm in the above-mentioned direction than the apex 21a.

[0058] like Figure 2 As shown, the second inclined portion 6b is an inclined surface that is located upstream of the convex portion 6a in the wind flow direction and is inclined from the upstream side toward the downstream side in the wind flow direction so as to face the inside of the flow path 11.

[0059] like Figure 2 As shown, the guide member 7 is arranged on the upstream side of the wind flow direction closer to the convex member 6. In addition, the guide member 7 has a second convex portion 7a. The second convex portion 7a is arranged in a direction perpendicular to the direction of the rotation axis of the upper and lower air guide plates 31 and the wind flow direction (i.e., Figure 2 In the present embodiment, the second convex portion 7a protrudes further inwardly of the flow path 11 than the adjacent end portion 31d in the approximate vertical direction of the flow path 11. In the present embodiment, the second convex portion 7a protrudes further inwardly of the flow path 11 than the convex portion 6a. In the present embodiment, the second convex portion 7a is configured to extend across all the left and right air guide plates 41 to 46 when viewed from the wind flow direction, but may also be configured to extend across a portion of the left and right air guide plates 41 to 46 (a plurality of the left and right air guide plates 41 to 46) when viewed from the wind flow direction.

[0060] The guide member 7 forms a guide flow path 8 together with the convex member 6. The guide flow path 8 is formed so that the flow path cross-sectional area of ​​the outlet 8b is smaller than the flow path cross-sectional area of ​​the inlet 8a.

[0061] Below, in reference Figure 5 , Figure 6 and Fig. 9 , the function of the air outlet device 100 when supplying air is described.

[0062] Figure 5 is a schematic diagram of a cross section of the air outlet device 100 when blowing air upward, which is equivalent to Figure 1 FIG. 2 is a diagram of the II-II section. Figure 6 is a schematic diagram of a cross section of the air outlet device 100 when blowing air downward, which is equivalent to Figure 1 FIG. 2 is a diagram of the II-II section. Fig. 9 is a schematic diagram of a cross section of the air outlet device 200 of the comparative example, which is equivalent to Figure 1 The II-II section of the diagram. Figure 5 , Figure 6 and Fig. 9 In FIG. 1 , arrows A to K represent the flow of wind flowing through the air outlet devices 100 and 200 .

[0063] First, refer to Figure 5 In this case, the first air guide plate portion 3 and the auxiliary upper and lower air guide plates 5 are at the maximum angle and are inclined upward as they go downstream in the wind flow direction.

[0064] The wind sent from the air conditioner flows into the flow path 11 from the inlet 12 of the flow path member 1. The wind flowing into the flow path 11 can be roughly divided into the wind flowing into the upper side of the flow path 11 (the middle of the flow path 11) as shown by the arrow A. Figure 2The wind from the upper side of the paper, that is, the side where the auxiliary upper and lower air guide plates 5 are arranged, flows into the inner side of the flow path 11 (in the flow path 11) as shown by the arrow B. Figure 2 The wind flows into the center of the paper, that is, the side near the pin member 48, and the wind flows into the lower side of the flow path 11 (in the flow path 11) as shown by arrows C and D. Figure 2 The wind of the lower side of the paper, the side where the convex member 6 and the guide member 7 are arranged. The flow of each wind will be described below.

[0065] The wind flowing into the upper side of the flow path 11 flows in the flow path 11 as shown by arrow A. That is, the wind flowing into the upper side of the flow path 11 first flows in the extension direction of the flow path 11 (in other words, in a direction parallel to the inner wall 11a of the flow path 11). Then, the wind changes its flow toward the upper side of the air outlet device 100 under the action of the auxiliary upper and lower air guide plates 5 and blows out from the outlet 13 and the opening 110 upward.

[0066] The wind flowing into the lower side of the flow path 11 flows in the flow path 11 as shown by arrow C or arrow D. That is, the wind flowing into the lower side of the flow path 11 can be divided into the case where it does not pass through the guide flow path 8 as shown by arrow C and the case where it passes through the guide flow path 8 as shown by arrow D.

[0067] A case where the wind does not pass through the guide flow path 8 as indicated by arrow C will be described. In this case, the wind flowing into the lower side of the flow path 11 first flows in the direction in which the flow path 11 extends.

[0068] Then, the wind hits the second convex portion 7a of the guide member 7 and changes its flow direction toward the first wind guide plate portion 3. The wind whose flow is changed merges with the wind of arrow B and flows toward the opening 110. Here, a convex portion 6a is provided on the downstream side of the wind flow direction relative to the second convex portion 7a, and the convex portion 6a is adjacent to the vertex 21a of the first inclined member 21. Thus, it is possible to suppress the wind after the above-mentioned confluence from entering the vertex 21a. As a result, it is possible to prevent the generation of the Coanda effect in which the air is adsorbed to the surface of the first inclined member 21. In particular, in the maximum angle state, the convex portion 6a protrudes more than the adjacent end portion 31d of the upper and lower wind guide plates 31, so in the maximum angle state, it is possible to suppress the wind from flowing directly between the first inclined member 21 and the upper and lower wind guide plates 31. In addition, even if part of the wind formed by the confluence of the wind of arrow C and the wind of arrow B bypasses the convex portion 6a, first, it is possible to suppress the wind from being adsorbed near the vertex 21a as described above. Furthermore, the first inclined member 21 is inclined downward toward the downstream side in the wind flow direction. Thus, since the first inclined member 21 is inclined downward toward the downstream side in the wind flow direction, it is also possible to suppress a part of the wind from contacting the surface of the first inclined member 21.

[0069] The range of "adjacent" between the convex portion 6a and the vertex 21a refers to the distance between the vertex 21a and the convex portion 6a within the range where the wind passing over the convex portion 6a does not go around the vertex 21a, which means that the distance from the vertex 21a to the convex portion 6a is approximately 3 mm or less. In addition, it can also be understood that if the distance from the vertex 21a to the second convex portion 7a is 3 mm or less, the second convex portion 7a is also adjacent to the vertex 21a.

[0070] Here, the first air guide plate portion 3 and the auxiliary vertical air guide plate 5 are inclined upward, so the wind toward the first air guide plate portion 3 is guided by the first air guide plate portion 3 to flow upward, and is blown upward from the outlet 13 and the opening 110 .

[0071] A description will be given of a case where the wind passes through the guide flow path 8 as indicated by arrow D. In this case, the wind flowing into the lower side of the flow path 11 first flows in the direction in which the flow path 11 extends.

[0072] Then, as shown by arrow D, the wind flows from the inlet 8a of the guide flow path 8 to the outlet 8b. The wind flowing in the guide flow path 8 changes its flow under the action of the second inclined portion 6b and flows upward. In addition, as described above, the guide flow path 8 is formed so that the flow path cross-sectional area of ​​the outlet 8b is smaller than the flow path cross-sectional area of ​​the inlet 8a. That is, the guide flow path 8 is formed so that the outlet 8b is narrower than the inlet 8a. Therefore, the guide flow path 8 makes the flow velocity of the wind flowing in the guide flow path 8 faster on the outlet side, so that the wind can flow out from the outlet 8b with great force.

[0073] The wind that has been changed to flow upward while increasing its flow velocity by the guide flow path 8 merges with the wind of arrow B as shown by arrow D and flows to the upper and lower wind guide plates 31 of the first wind guide plate portion 3. The wind blown out from the outlet 8b has a faster flow velocity as described above, so it plays a role in pushing the wind of arrow B upward. In this way, the wind of arrow D merges with the wind of arrow B to suppress the situation where the wind goes around the vertex 21a. In this way, the generation of the Coanda effect in which the air is adsorbed on the surface of the first inclined member 21 can be more effectively prevented.

[0074] The wind flowing into the inner side of the flow path 11 flows in the flow path 11 as shown by arrow B. That is, the wind flowing into the inner side of the flow path 11 first flows in the extension direction of the flow path 11. Then, the wind merges with the wind flowing from the lower side of the flow path 11 to the upper side (the wind flowing in arrows C and D) and changes its flow to the upper side of the air outlet device 100. In addition, the wind hits the upper and lower air guide plates 31, whereby the wind direction is changed and flows to the upper side along the upper and lower air guide plates 31, and blows out from the outlet 13 and the opening 110.

[0075] In this way, the wind flowing from the air conditioner into the flow path 11 of the air outlet device 100 will be blown upward from the opening 110 regardless of which side of the flow path 11 it passes through, the upper side, the inner side, or the lower side. In other words, when the wind is blown upward, the wind is prevented from flowing downward in the opposite direction to the intended direction.

[0076] Here, refer to Fig. 9 , except that the convex part 6 and the guide part 7 are not provided Figure 1 to Figure 4 An air outlet device 200 which is the same as the air outlet device 100 shown is described as a comparative example.

[0077] like Fig. 9 As shown, in the air outlet device 200, the wind flowing from the air conditioner to the lower side of the flow path 11 passes through the space between the vertex 21a of the first inclined member 21 and the upper and lower air guide plates 31 (near the end 31d) without changing the flow as shown by the arrow J. As described above, in the structure of the first inclined member 21, the vicinity of the vertex 21a of the first inclined member 21 and the wind flow direction (in Figure 2 The angle between the two (the lines shown as dotted lines in FIG. 1 ), that is, the inclination angle R1, is less than 40 degrees.

[0078] When the inclination angle R1 is less than 40 degrees (particularly in the range of 0 degrees < R1 < 30 degrees), if the wind is as in the comparative example Fig. 9 If the wind flows as shown by the arrow J, when the wind contacts the vertex 21a, the wind will flow downward along the first inclined member 21 as shown by the arrow K due to the Coanda effect. That is, in the case where there is no convex member 6 and the guide member 7, even if the upper and lower air guide plates 31 are directed upward, there is a case where the wind flows downward, and the wind direction flows in the direction opposite to the intended direction.

[0079] In order to prevent such wind flow, it is conceivable to extend the upper and lower wind guide plates 31 upstream in the wind flow direction to close the space between the upper and lower wind guide plates 31 and the first inclined member 21 when the angle is at the maximum.

[0080] However, in the air outlet device 200 in which the upper and lower air guide plates 31 are arranged near the opening 110, that is, the upper and lower air guide plates 31 are extended rearward, but before the upper and lower air guide plates 31 abut against the first inclined member 21, the handle 32 abuts against the first inclined member 21. As a result, a gap is generated in the portion between the upper and lower air guide plates 31 and the first inclined member 21 where the handle 32 is not sandwiched, and thus a Coanda effect is generated in this portion.

[0081] In contrast, in the air outlet device 100 having the convex part 6 and the guide part 7, as shown in FIG. Figure 5As shown, when the upper and lower air guide plates 31 are rotated to the maximum angle, the wind (in the space between the apex 21a on the upstream side of the wind flow direction of the first inclined member 21 and the adjacent end 31d of the upper and lower air guide plates 31) is Figure 5 The wind indicated by the arrow C, in particular, the wind toward the vertex 21a of the first inclined member 21, hits the second convex portion 7a before flowing through the space and changes the flow. In addition, since the convex portion 6a is adjacent to the vertex 21a, the convex portion 6a blocks the wind toward the vertex 21a. Therefore, it is possible to suppress the situation where the wind bypasses the space. Therefore, it is possible to prevent the wind from flowing through the space in a direction opposite to the intended direction (such as the direction opposite to the intended direction) due to the wall effect generated at the first inclined member 21. Fig. 9 Flow of arrow J and arrow K).

[0082] In addition, the guide flow path 8 is provided by the second inclined portion 6b and the guide member 7, whereby Figure 5 As shown by the arrow D in FIG. 1 , the wind flowing into the lower side of the flow path 11 is guided upward. Figure 5 Since the wind flows upward as shown by the arrow D in FIG. 2 , it is also possible to suppress the wind from flowing into the space between the vertex 21a of the first inclined member 21 and the adjacent end 31d of the upper and lower wind guide plates 31. In particular, the flow of wind that is about to contact the vertex 21a of the first inclined member 21 is suppressed, and the generation of the Coanda effect of wind adsorbed from the vertex 21a can be suppressed.

[0083] Furthermore, the guide flow path 8 is formed so that the flow path cross-sectional area of ​​the outlet 8b is smaller than the flow path cross-sectional area of ​​the inlet 8a. That is, the outlet 8b of the guide flow path 8 is narrower than the inlet 8a. Therefore, the flow path of the wind passing through the guide flow path 8 becomes faster and flows upward strongly. Thus, the generation of the Coanda effect in which the wind is attracted to the first inclined member 21 can also be suppressed.

[0084] Next, refer to Figure 6 , the case where the wind blows to the lowest position is described. In this case, the first wind guide plate 3 and the auxiliary upper and lower wind guide plates 5 are in the reverse maximum angle state, and the first wind guide plate 3 and the auxiliary upper and lower wind guide plates 5 are inclined downward as they are closer to the downstream of the wind flow direction. That is, the first wind guide plate 3 can be Figure 5 The location shown to Figure 6 The position shown in the figure can be rotated within the range (maximum rotation range).

[0085] The air outlet device 100 allows the wind sent from the air conditioner to flow into the flow path 11 from the inlet 12 of the flow path member 1. The wind flowing into the flow path 11 can be roughly divided into wind flowing into the upper side of the flow path 11 as shown by arrow E, wind flowing into the inner side of the flow path 11 as shown by arrow F, and wind flowing into the lower side of the flow path 11 as shown by arrow G and arrow H. The flow of each wind will be described below.

[0086] The wind flowing into the upper side of the flow path 11 flows in the flow path 11 as shown by arrow E. That is, the wind flowing in from the upper side of the flow path 11 first flows in the extension direction of the flow path 11. Then, the flow of the wind is changed by the auxiliary upper and lower air guide plates 5 and flows toward the lower side of the air outlet device 100, and the wind is blown out from the outlet 13 and the opening 110 toward the lower side.

[0087] It is possible that, in the wind flowing on the upper side of the flow path 11, there is a possibility that the wind directly flows through the space between the interior panel 24 and the first air guide plate portion 3 without contacting the auxiliary upper and lower air guide plates 5 and without changing the flow. However, even if there is such wind, since the inclination angle R2 of the interior panel 24 becomes greater than 40 degrees (for example, 42 degrees), the phenomenon of the wind flowing upward due to the wall effect can be suppressed. That is, in the reverse maximum angle state, the wind can be blown out directly from the air outlet device 100, and the situation where the wind blows out to the upper side (the direction opposite to the intended direction) is suppressed.

[0088] The wind flowing into the inner side of the flow path 11 flows in the flow path 11 as indicated by arrow F. That is, the wind flowing in from the inner side of the flow path 11 first flows in the extension direction of the flow path 11. Then, the wind contacts the upper and lower wind guide plates 31 and the handle 32 inclined downward, thereby flowing downward along the upper and lower wind guide plates 31 and the handle 32, and is blown out from the outlet 13 and the opening 110 downward as indicated by arrow I.

[0089] The wind flowing into the lower side of the flow path 11 flows in the flow path 11 as shown by arrow G or arrow H. That is, the wind flowing in from the lower side of the flow path 11 can be divided into the case where it does not pass through the guide flow path 8 as shown by arrow G and the case where it passes through the guide flow path 8 as shown by arrow H.

[0090] As shown by arrows G and H, the wind flowing in from the lower side of the flow path 11 temporarily flows upward due to the convex portion 6a and the second convex portion 7a, or the guide flow path 8, but merges with the wind of arrow F and finally hits the first air guide plate portion 3 inclined downward. The wind is guided to flow downward along the first air guide plate portion 3, and blown out from the outlet 13 and the opening 110 toward the downward side as shown by arrow I.

[0091] As described above, the wind flowing from the air conditioner into the flow path 11 of the air outlet device 100 does not blow upward from the opening 110 regardless of whether it passes through the upper side, the inner side or the lower side of the flow path 11. That is, the wind does not flow in the direction opposite to the intended direction.

[0092] According to the above embodiment, the following effects can be obtained.

[0093] The air outlet device 100, through which the wind is blown out from the opening 110 through the flow path 11, comprises: an upper and lower air guide plate 31, which is provided with a handle 32; a pair of side walls 22, 23, which support the upper and lower air guide plates 31 in a manner that enables the upper and lower air guide plates 31 to rotate, and are used to form a part of the opening 110; and a first inclined member 21, which forms another part of the opening 110 between the pair of side walls 22, 23, and is inclined from the upstream side toward the downstream side in the wind flow direction to increase the opening area of ​​the opening 110. The first inclined member 21 has an inclined vertex 21a located on the upstream side in the wind flow direction. When the upper and lower air guide plates 31 are rotated to the maximum angle state where the upstream end 31c of the upper and lower air guide plates 31 on the upstream side in the wind flow direction is closest to the first inclined member 21, the upstream end 31c of the upper and lower air guide plates 31 is located on the downstream side of the wind flow direction closer to the vertex 21a. The air outlet device 100 also has a convex portion 6a arranged adjacent to the vertex 21a on the upstream side closer to the wind flow direction than the vertex 21a, and the convex portion 6a protrudes further toward the inside of the flow path 11 than the vertex 21a in a direction perpendicular to the rotation axis of the upper and lower air guide plates 31 and the wind flow direction.

[0094] According to this feature, when the upper and lower air guide plates 31 are rotated to the maximum angle, the convex portion 6a can prevent the wind from contacting the vertex 21a of the first inclined member 21, thereby preventing the Coanda effect from occurring at the vertex 21a. This can prevent the wind from flowing in the direction opposite to the intended direction.

[0095] In a preferred embodiment, the convex portion 6 a protrudes further toward the inside of the flow path 11 than a position near the end portion 31 d of the upper and lower air guide plates 31 closest to the first inclined member 21 in the maximum angle state.

[0096] According to this technical feature, when the upper and lower air guide plates 31 are rotated to the maximum angle state, the convex portion 6a can suppress the wind from flowing into the space between the vertex 21a of the first inclined member 21 and the adjacent end 31d of the upper and lower air guide plates 31. Therefore, the generation of the Coanda effect at the first inclined member 21 can be suppressed, and the wind can be effectively prevented from flowing in the direction opposite to the intended direction through the space.

[0097] Furthermore, the air outlet device 100 further includes a second inclined portion 6b which is adjacent to the convex portion 6a on the upstream side in the wind flow direction and is inclined toward the inside of the flow path 11 in the direction from the upstream side toward the downstream side in the wind flow direction.

[0098] According to this technical feature, the wind flowing on the lower side of the flow path 11 is guided upward. Therefore, in the maximum angle state, the wind can be prevented from flowing into the space between the vertex 21a of the first inclined part 21 and the adjacent end 31d of the upper and lower wind guide plates 31. Therefore, the generation of the wall effect at the first inclined part 21 can be suppressed, and the wind can be prevented from flowing in the opposite direction to the intended direction through the space (such as Fig. 9 Flow of arrow J and arrow K).

[0099] In addition, the air outlet device 100 further includes a guide member 7 that forms a guide flow path 8 together with the second inclined portion 6b, and the guide member 7 includes a second convex portion 7a that protrudes further inwardly from the apex 21a to the flow path 11. Specifically, the second convex portion 7a protrudes further inwardly from the adjacent end 31d to the flow path 11.

[0100] According to this technical feature, even in the maximum angle state, the second convex portion 7a can suppress the wind from flowing into the space between the vertex 21a of the first inclined member 21 and the adjacent end 31d of the upper and lower wind guide plates 31. Therefore, it is possible to prevent the wind from flowing in the opposite direction to the intended direction through the space.

[0101] The second convex portion 7a protrudes further into the flow path 11 than the convex portion 6a. However, when the flow path 11 is viewed from the direction of the opening 110, the second convex portion 7a is located on the deep side of the flow path 11, so that the effect on the aesthetics can be reduced. That is, by reducing the convex portion 6a that is easily visible to passengers and increasing the second convex portion 7a that is relatively difficult to be seen by passengers, the effect on the aesthetics can be reduced while suppressing the occurrence of the Coanda effect.

[0102] In addition, if Figure 1 As shown in FIG. 1 , when the flow path 11 is viewed from the direction of the opening 110, the convex portion 6a and the second convex portion 7a appear to be stepped. Assuming that the convex portion 6a has approximately the same height as the second convex portion 7a, when the flow path 11 is viewed from the opening 110, the wall surface of the convex portion 6a (at Figure 1 The visible side of the image looks very conspicuous, while in contrast, Figure 1 As shown, it is formed in a stepped shape so as to be less obtrusive visually.

[0103] Furthermore, the outlet 8 b of the guide flow path 8 is narrower than the inlet 8 a of the guide flow path 8 .

[0104] According to this technical feature, the wind flowing in the guide flow path 8 flows out upward from the outlet 8b with great force. Thus, even in the maximum angle state, it is possible to suppress the wind from flowing into the space between the vertex 21a on the upstream side of the wind flow direction of the first inclined member 21 and the adjacent end 31d of the upper and lower wind guide plates 31.

[0105] As mentioned above, although the embodiment of the present invention has been described, the above embodiment merely shows a part of application examples of the present invention, and the technical scope of the present invention is not limited to the specific structure of the above embodiment.

[0106] In the above embodiment, the first tilting member 21 is arranged below the opening 110 and the first air guide plate portion 3 is tilted upward in the maximum angle state. However, the above structure can also be applied to the case where the first tilting member 21 is arranged above the opening 110 and the first air guide plate portion 3 is tilted downward in the maximum angle state. In addition, in the case where the left and right air guide plates 41 to 46 are arranged closer to the inside of the vehicle compartment than the upper and lower air guide plates 31 (it can also be understood as placing the left and right air guide plates 41 to 46 closer to the inside of the vehicle compartment than the upper and lower air guide plates 31), the left and right air guide plates 41 to 46 are arranged closer to the inside of the vehicle compartment than the upper and lower air guide plates 31. Figure 1 In the case where the structure is inclined 90 degrees and arranged in the vehicle cabin), the upper and lower air guide plates 31 may be replaced with the air guide plates closest to the first inclined member 21 among the left and right air guide plates 41 to 46 and the above structure may be applied.

[0107] In addition, if Figure 7 As shown in the modification, the guide member 17 may not have the second convex portion 7a. Even in this configuration, the presence of the convex portion 6a can prevent wind from being caught in the apex 21a on the upstream side of the first inclined member 21 in the wind flow direction.

[0108] In addition, if Figure 8 As shown in another modified example, a structure including a second inclined member 16 replacing the convex member 6 and the guide member 7 may be adopted.

[0109] The second inclined member 16 has a convex portion 16a and an inclined portion 16b. The convex portion 16a and the inclined portion 16b are formed integrally.

[0110] Similar to the convex portion 6a, the convex portion 16a is adjacent to the apex 21a of the first inclined member 21, so that the wind can be prevented from being caught in the apex 21a. Thus, the wind can be prevented from flowing into the space.

[0111] Similar to the second inclined portion 6b, the inclined portion 16b guides the wind flowing on the lower side of the flow path 11 upward, thereby preventing the wind from flowing into the space between the vertex 21a on the upstream side of the wind flow direction of the first inclined member 21 and the adjacent end 31d of the upper and lower wind guide plates 31.

[0112] The air outlet device 100 of this modified example can also prevent the wind from passing through the space and flowing in a direction opposite to the intended direction (such as Fig. 9 Flow of arrow J and arrow K).

[0113] This application claims priority based on Japanese Patent Application No. 2020-118661 filed with the Japan Patent Office on July 9, 2020, and the entire contents of that application are incorporated by reference into the specification of the present application.

Claims

1. An air outlet device that allows air to pass through a flow path and be blown out from an opening, characterized in that: have: A first wind deflector, which is equipped with a handle; a plurality of second air guide plates, which are arranged in a direction intersecting with the first air guide plates and are arranged on an upstream side closer to the wind flow direction than the first air guide plates; a pair of side walls, which support the first air guide plate in a manner that enables the first air guide plate to rotate and are used to form a part of the opening; as well as a first inclined member which forms another part of the opening between the pair of side walls and is inclined from the upstream side toward the downstream side in the wind flow direction to increase the opening area of ​​the opening; The first inclined member has an inclined apex located on the upstream side in the wind flow direction, When the first wind guide plate is rotated to a maximum angle state in which an upstream end of the first wind guide plate on the upstream side of the wind flow direction is closest to the first inclined member, the upstream end is located on the downstream side of the wind flow direction closer to the apex than the apex. The air outlet device further includes a convex portion disposed adjacent to the apex on the upstream side closer to the wind flow direction than the apex, The convex portion is provided so as to protrude further inward of the flow path than the apex in a direction perpendicular to the rotation axis of the first air guide plate and the air flow direction, and to extend across the plurality of second air guide plates when viewed from the air flow direction.

2. The air outlet device according to claim 1, wherein: The convex portion is arranged between the first wind guide plate and the second wind guide plate in the wind flow direction.

3. The air outlet device according to claim 1, wherein: The convex portion protrudes toward the inside of the flow path in a direction orthogonal to the rotation axis of the first air guide plate and the wind flow direction, relative to a position of a proximal end portion of the first air guide plate closest to the first inclined member in the maximum angle state.

4. The air outlet device according to claim 2, wherein: The convex portion protrudes toward the inside of the flow path in a direction orthogonal to the rotation axis of the first air guide plate and the wind flow direction, relative to a position of a proximal end portion of the first air guide plate closest to the first inclined member in the maximum angle state.

5. The air outlet device according to any one of claims 1 to 4, wherein: A second inclined portion is provided which is adjacent to the convex portion on the upstream side in the wind flow direction and is inclined toward the inside of the flow path in a direction from the upstream side toward the downstream side in the wind flow direction.

6. The air outlet device according to claim 5, wherein: A guide member is further provided, which forms a guide flow path together with the second inclined portion to guide the wind toward the inside of the flow path, The guide member includes a second protrusion that protrudes toward the inside of the flow path beyond the apex in a direction perpendicular to the rotation axis of the first air guide plate and the wind flow direction.

7. The air outlet device according to claim 6, wherein: An outlet of the guide flow path is narrower than an inlet of the guide flow path.

8. The air outlet device according to any one of claims 1 to 4, wherein: having a second convex portion located upstream of the convex portion in the wind flow direction and protruding inward of the flow path more than the apex in a direction perpendicular to the rotation axis of the first wind guide plate and the wind flow direction, The second convex portion protrudes larger than the convex portion.

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