JP5562265B2 - Air conditioner for vehicles - Google Patents

Description

  The present invention relates to a vehicle air conditioner that is mounted on a vehicle and that adjusts the temperature of the vehicle interior by blowing air that has been temperature-adjusted by cooling means into the vehicle interior.

  2. Description of the Related Art Conventionally, a vehicle air conditioner mounted on a vehicle takes air inside and outside by a blower into a casing in which an air passage is formed, and is heated by an air cooled by an evaporator as a cooling means and a heater core as a heating means. The air in the vehicle interior is mixed at a desired mixing ratio in the casing and then blown from a plurality of openings provided in the casing through a blower duct through an air outlet provided in the vehicle interior. And adjusting the humidity.

  In particular, in a vehicle air conditioner as disclosed in Patent Document 1, air is simultaneously blown from a defroster outlet that blows air toward the front window in order to remove fog and a heat outlet that blows air toward the feet of the passenger. In the heat differential mode, the air heated from the heater core is directly mixed with the cooled air in order to make the air temperature from the defroster air outlet higher than the air temperature from the heat air outlet. It has a passage configuration that can blow air to the defroster outlet.

JP 2010-188995 A

  In the vehicle air conditioner described above, the air passage leading to the opening formed in the upper portion of the casing for connection to the air duct leading to each outlet is divided into independent passages on the outer side and the inner side in the vehicle width direction. The air passage on the outer side in the direction is a defroster passage leading to the defroster opening, while the air passage on the inner side in the vehicle width direction is a heat passage leading to the heat opening. The defroster passage is configured to be able to directly introduce air heated by the heater core, and the heat passage is configured to be able to introduce mixed air of heated air and cooled air.

  By the way, in such a vehicle air conditioner, there is a desire to increase the amount of air blown to the defroster outlet when it is desired to rapidly remove the fog on the front window. In this case, for example, it is conceivable to increase the blown air volume by supplying part of the air supplied to the heat passage to the defroster outlet.

  At that time, it is the simplest method in construction and manufacturing that the defroster opening is expanded in the vehicle width direction to the upper part of the heat passage, but the temperature of the air introduced into the defroster passage and the heat passage are introduced into the heat passage. If the opening area of the opening provided in the upper part of the defroster passage and the opening area of the opening provided in the upper part of the heat passage are simply set to be the same, the defroster only from the defroster passage. Compared with the case where air is supplied to the air outlet, the air temperature is significantly lowered, and the fog removal efficiency may be deteriorated.

  In addition, since the air flowing in the defroster passage is supplied only to the defroster outlet, the defroster opening provided in the upper portion of the defroster passage is desired to have a large opening area in order to increase the blowing amount. Since the air needs to be blown also to the heat blower outlet, in order to adjust the ratio of blown air to the defroster blower outlet and the heat blower outlet, the opening area of each defroster opening at the upper part of the defroster passage and the upper part of the heat passage Need to be adjusted individually. Since the ratio of the opening area varies depending on the duct shape connecting the vehicle air conditioner and the outlet, for example, when the vehicle air conditioner described above is mounted on a plurality of vehicle types, It is necessary to adjust the opening area, and the adjustment work is complicated.

  The present invention has been made in consideration of the above-described problems. The opening for sending air into the vehicle interior is divided in the width direction of the vehicle with a simple configuration, and the opening area of the divided opening is reduced. An object of the present invention is to provide an adjustable vehicle air conditioner.

In order to achieve the above object, the present invention provides a casing having a passage through which air to be blown into a passenger compartment, a cooling means for cooling the air, a heating means for heating the air, and the casing. An opening formed in the vehicle width direction that is formed and communicated with the air outlet in the vehicle interior, and a damper mechanism that is provided in the vicinity of the opening and switches the air blowing state into the vehicle interior by opening and closing the opening In a vehicle air conditioner equipped with
The casing is provided with a cover member so as to cover a part of the opening, and the cover member is fixed to the casing,
A cover opening facing the opening and communicating with the opening;
A shielding portion that faces the opening and shields a part of the cover opening in the front or rear direction of the vehicle;
A partition provided in the cover opening and dividing the opening in the vehicle width direction;
With
The damper mechanism extends along the vehicle width direction and is rotatably supported with respect to the cover member, and one shielding plate extends radially with respect to the rotation shaft The opening that is not covered by the cover member, and a cantilever damper that shields the opening of the cover and two shielding plates that extend in the radial direction so as to be separated from each other on the rotating shaft And a butterfly damper.

  According to the present invention, the cover member is provided so as to cover a part of the opening portion of the casing, the cover opening portion of the cover member is communicated with the opening portion, and the vehicle opening direction in the cover opening portion by the shielding portion Or while shielding a part of rear direction, the said opening part is divided | segmented into the said vehicle width direction by the partition part provided in the said cover opening part. The rotating shaft of the damper mechanism is rotatably supported with respect to the cover member, and a cantilever damper including a single shielding plate extending in the radial direction with respect to the rotating shaft includes the cover opening. On the other hand, a butterfly damper comprising two shielding plates extending in the radial direction so as to be separated from each other on the rotating shaft is provided so as to shield the opening.

  Accordingly, a portion of the opening covered with the shielding portion and a portion not covered with the shielding portion with a simple configuration in which a cover member having a shielding portion covering a part of the opening is provided on the casing. The opening area can be easily changed between As a result, it is possible to freely change the ratio of the amount of air supplied to the vehicle interior through the cover member and the amount of air supplied directly from the opening to the vehicle interior without using the cover member. It becomes.

  The damper mechanism includes a cantilever damper that shields the cover opening of the cover member, and a butterfly damper that shields the opening that is not covered by the shield, so that the damper mechanism is fully closed. The opening having two parts having different opening areas can be reliably shielded.

  The partition portion includes a rib extending toward the opening side, and a passage dividing member is provided inside the casing so as to face the opening portion and divides the passage in the vehicle front-rear direction. The rib may be divided into a center side and both end sides in the vehicle width direction independently by contacting the rib and the path dividing member.

  Furthermore, it is good to make a part of spindle part which supports a rotating shaft with a channel | path division | segmentation member in a rib.

  Furthermore, the opening is a defroster opening that blows air near the front window in the vehicle interior, and one of the passages on the center side or both ends in the vehicle width direction has a temperature heated by the heating means. It is preferable to introduce a mixed air in which the air and the cold air cooled by the cooling means are mixed, and directly introduce the warm air heated by the heating means into the other side passage.

  Still further, the heating means is disposed below the defroster opening in the casing, and the mixed air is introduced from the vehicle front-rear direction with respect to the one side passage, and the hot air is introduced into the casing on the other side. When the cantilever damper is introduced from below and shields the cover opening, it is preferable that one side of the shielding plate in the butterfly damper is disposed at a position inclined upward compared to the other side.

  The openings communicate with the air outlets in the passenger compartment via ducts. Of the divided openings, the openings are covered with the cover member, and are covered with the cover member. It is good to connect the other opening part which is not connected to the said independent duct.

  According to the present invention, the following effects can be obtained.

  That is, a cover member is provided so as to cover a part of the opening of the casing, the cover opening of the cover member communicates with the opening, and the vehicle opening direction or the rear direction of the cover opening by the shielding portion. A damper mechanism that shields a part of the damper mechanism and is supported by the cover member. The cantilever damper includes a shield plate that extends in a radial direction with respect to the rotation shaft and shields the cover opening, and the rotation shaft. By providing a butterfly damper comprising two shielding plates extending so as to be separated from each other and capable of shielding the opening portion, a simple configuration of providing a cover member having a shielding portion on the casing, The opening area of the opening can be easily changed between the portion covered with the shielding portion and the portion not covered with the shielding portion. As a result, it is possible to freely change the ratio between the amount of air supplied to the vehicle interior through the cover member and the amount of air supplied directly from the opening to the vehicle interior without using the cover member. .

1 is an external perspective view of a vehicle air conditioner according to an embodiment of the present invention. It is a whole sectional view of the casing in the air-conditioner for vehicles of Drawing 1. FIG. 2 is an exploded perspective view of a cover member and a defroster damper shown in FIG. 1. It is the external appearance perspective view which looked at the cover member of Drawing 3 from the lower part. It is sectional drawing along the VV line of FIG. It is an expanded sectional view which shows the defroster damper in FIG. 2, and the defroster opening vicinity.

  DESCRIPTION OF EMBODIMENTS Preferred embodiments of a vehicle air conditioner according to the present invention will be described in detail below with reference to the accompanying drawings.

  In FIG. 1, reference numeral 10 indicates a vehicle air conditioner according to an embodiment of the present invention. The vehicle air conditioner 10 is mounted so that the right side (arrow A direction) shown in FIGS. 1 and 2 is the front side of the vehicle and the left side (arrow B direction) is the rear side of the vehicle. In the following description, the arrow A direction is assumed to be the front, and the arrow B direction is assumed to be the rear.

  As shown in FIGS. 1 and 2, the vehicle air conditioner 10 is connected to a casing 12 constituting each passage of air and a side portion of the casing 12 via a connecting duct 14, so that a front seat in the vehicle. A first blower 16 for blowing air, an evaporator (cooling means) 18 disposed in the casing 12 for cooling the air, a heater core (heating means) 20 for heating the air, and the casing 12 And a second blower 22 for sending air to the middle seat and the rear seat of the vehicle, and a damper mechanism 24 for switching the flow of air flowing through the passages.

  The casing 12 includes first and second divided casings 26 and 28 having a substantially symmetrical shape, and a center plate 30 provided between the first divided casing 26 and the second divided casing 28. A first front passage 32 to which the connection duct 14 is connected is formed on the lower side of the divided casing 26, and air is supplied from the first blower 16.

  The evaporator 18 is provided so as to straddle the first divided casing 26 and the second divided casing 28, and is disposed on the downstream side of the first front passage 32. The evaporator 18 faces the first front passage 32 and cools the air supplied from the first front passage 32, and the second cooling portion cools the air supplied from the second blower 22. 36. In addition, the 1st cooling part 34 and the 2nd cooling part 36 are isolate | separated by the partition means.

  On the other hand, on the downstream side of the evaporator 18, a second front passage 38 to which air that has passed through the first cooling section 34 is supplied is formed. Above the second front passage 38, a third front passage 40 and a fourth front passage 38 are formed. The front passage 42 is formed to branch off. In addition, an air mix damper 44 is rotatably provided in the second front passage 38 so as to face a branch portion of the third front passage 40 and the fourth front passage 42. Then, by rotating the air mix damper 44, the air blowing state and the air blowing amount of the cold air that has passed through the evaporator 18 to the third front passage 40 and the fourth front passage 42 are adjusted.

  The third front passage 40 is disposed such that the casing 12 is on the front side (in the direction of arrow A) and the fourth front passage 42 is on the rear side (in the direction of arrow B). A heater core is disposed downstream of the fourth front passage 42. 20 is disposed.

  On the upstream side of the third front passage 40, a cool vent damper 46 is provided below the second front passage 38, and the communication state between the second front passage 38 and the third front passage 40 is switched.

  The third front passage 40 extends upward, and a vent opening 48 is opened at an upper portion on the downstream side thereof, and a vent damper 50 capable of opening and closing the vent opening 48 is rotatably provided. It is done. The vent damper 50 is provided so that the air flowing through the third front passage 40 is switched to a venting state when the air is blown to the vent opening 48 or the sixth front outer passage 64 to be described later, and the amount of air flow can be adjusted. It is done.

  As with the evaporator 18, the heater core 20 is disposed so as to straddle between the first divided casing 26 and the second divided casing 28, faces the fourth front passage 42, and is supplied from the fourth front passage 42. The 1st heating part 52 which heats and the 2nd heating part 54 which heats the air supplied from the 2nd blower 22 are provided. In addition, the 1st heating part 52 and the 2nd heating part 54 are isolate | separated by the partition means.

  A fifth front passage 56 is formed on the downstream side of the first heating unit 52, and the fifth front passage 56 extends forward (in the direction of arrow A) and joins the third front passage 40. A temperature control damper 58 is provided, and a sub-defroster damper 60 is provided above the first heating unit 52. The temperature control damper 58 switches the communication state between the fifth front passage 56 and the third front passage 40 under the rotating action.

  The sub defroster damper 60 is provided for the purpose of switching the communication state between the fifth front passage 56 and the sixth front outer passage 64 outside the pair of passage split members 62a and 62b provided above the sub front defroster damper 60. The defroster damper 60 is rotated to connect the fifth front passage 56 and the sixth front outer passage 64, that is, the flow path from the fifth front passage 56 to the sixth front outer passage 64 is shortened. Thus, the warm air heated by the heater core 20 is supplied directly to the sixth front outer passage 64 without flowing through the third front passage 40.

  The passage dividing members 62a and 62b are formed in an L-shaped cross section, face a defroster opening 74 described later, and are respectively provided on the first and second divided casings 26 and 28 side with the center plate 30 interposed therebetween. The passage dividing members 62a and 62b are divided walls 66a and 66b that are substantially parallel to the center plate 30 and spaced apart from each other by a predetermined distance, and a blocking wall 68a that extends from the lower part of the divided walls 66a and 66b toward the center plate 30 side. , 68b. The space surrounded by the dividing walls 66a and 66b, the blocking walls 68a and 68b, and the center plate 30 becomes the sixth front inner passage 70, and the front side (direction of arrow A) is downstream of the third front passage 40. The rear side (in the direction of arrow B) communicates with the heat opening 72 and communicates with a first opening 86 (described later) provided at the center of the defroster opening 74.

  On the other hand, a sixth front outer passage 64 is formed between the dividing walls 66a and 66b and the inner walls of the first and second dividing casings 26 and 28, and second openings provided at both ends of the defroster opening 74. It communicates with a portion 88 (described later). Further, the blocking walls 68 a and 68 b block communication between the fifth front passage 56 and the sixth front inner passage 70.

  That is, in the casing 12, the third front passage 40 and the heat opening 72 are connected in a substantially horizontal direction through the sixth front inner passage 70 of the passage dividing members 62 a and 62 b, and the fifth front passage 64 passes through the fifth front passage 64. The front passage 56 and the defroster opening 74 are connected in a substantially vertical direction.

  In other words, the two sixth front inner passages 70 provided at the center in the width direction of the casing 12 and the two sixth front outer passages 64 provided at both ends in the width direction are formed inside the casing 12. It is formed so as to cross each other. Even in this case, the sixth front inner passage 70 and the sixth front outer passage 64 are separated from each other by the dividing walls 66a and 66b and do not communicate with each other.

  On the upper surfaces of the first and second divided casings 26 and 28, the width perpendicular to the vehicle front-rear direction (arrows A and B directions) is positioned above the sixth front inner passage 70 and the sixth front outer passage 64. A long defroster opening 74 is opened along the direction (the direction of arrow C). The defroster opening 74 has a substantially rectangular cross section, and a defroster damper 76 is rotatably provided so as to face the defroster opening 74, and the casing 12 covers a part of the defroster opening 74. A cover member 78 is attached from above.

  The cover member 78 is formed, for example, by molding a resin material, and a shielding portion 80 that closes a part of the defroster opening 74 and a side surface of the shielding portion 80 are joined to divide the defroster opening 74. It comprises a plurality of partition portions 82 and fixing portions 84 that are provided at the four corners and are fixed to the casing 12.

  The shielding part 80 is provided substantially at the center, and covers the center of the defroster opening 74 in the width direction and a part on the rear side (arrow B direction) of the vehicle when the cover member 78 is attached to the casing 12. Are formed with a predetermined width.

  The partition part 82 is composed of three parts joined to the substantially center and both ends of the shielding part 80, respectively, and extends in a direction away from the shielding part 80 (arrow A direction). When the cover member 78 is mounted so as to face the defroster opening 74, the opening of the defroster opening 74 is divided into four in the width direction (arrow C direction) by the partition 82. That is, of the four divided defroster openings 74, the two first openings 86 at the center in the width direction communicate with the sixth front inner passage 70 and are covered with the shielding part 80. In other words, the first opening 86 includes a partition opening 82 in the cover member 78, a cover opening 89 surrounded by a frame 94 and a shielding part 80 described later.

  On the other hand, each of the two second openings 88 on the outer side in the width direction with respect to the first opening 86 communicates with the sixth front outer passage 64, and the opening area is reduced by the shielding part 80. It is set larger than the first opening 86. Note that the first opening 86 and the second opening 88 divided into four are set to have substantially the same length along the width direction of the vehicle (the direction of the arrow C).

  The defroster opening 74 communicates with the vicinity of the left and right of the front window of the vehicle via a defroster duct (not shown) whose first opening 86 is connected to the upper portion of the casing 12, while the second opening 88 is It communicates with an air outlet opening near the center of the front window via two defroster ducts (not shown) connected above the casing 12.

  In addition, ribs 90 extending downward at a predetermined height are formed on the pair of partition portions 82 provided on both sides of the cover member 78, and as shown in FIG. The outer wall surfaces of the first and second outer walls abut against the inner wall surfaces of the dividing walls 66a and 66b of the passage dividing members 62a and 62b, respectively. Specifically, since the outer wall surface of the rib 90 is in sliding contact with the inner wall surfaces of the divided walls 66a and 66b, the outer wall surface flows through the sixth front inner passage 70 inside the divided walls 66a and 66b. The air flowing through the sixth front outer passage 64 on the outside of the dividing walls 66a and 66b is prevented from leaking out between the dividing walls 66a and 66b and the rib 90.

  As shown in FIGS. 3 and 4, the rib 90 is provided with a shaft support groove 92 that rotatably supports a defroster damper 76, which will be described later, at the end on the shielding portion 80 side (arrow B direction). It is done. The shaft support groove 92 is formed in a semicircular cross section that opens downward, and is rotatably supported with respect to the cover member 78 by inserting the rotating shaft 100 of the defroster damper 76 from below.

  The fixing portion 84 includes a pair of first fixing claws 96 provided via a frame 94 joined to an end portion of the partition portion 82 and a pair provided on the opposite side of the partition portion 82 with the shielding portion 80 interposed therebetween. Of the second fixed claw 98. The first and second fixed claws 96 and 98 protrude downward and engage with holes provided in the upper surfaces of the first and second divided casings 26 and 28, respectively.

  As a result, the cover member 78 has the shielding portion 80 and the partitioning portion 82 facing the defroster opening 74, and the rib 90 is inserted into the defroster opening 74, so that the dividing walls 66a and 66b of the passage dividing members 62a and 62b are inserted. It fixes with respect to the casing 12 in the contact | abutted state (refer FIG. 5).

  The defroster dampers 76 are provided on the rotary shaft 100 formed in a straight line, four first air guides 102 extending in a direction orthogonal to the axis of the rotary shaft 100, and both ends of the rotary shaft 100, A pair of second air guides 104 extending in a direction substantially opposite to the first air guide 102 with the rotating shaft 100 interposed therebetween. The first and second air blowing guides 102 and 104 are formed in a substantially rectangular shape having a predetermined width along the axial direction of the rotating shaft 100, and the length along the direction away from the rotating shaft 100 is the second air blowing guide. The guide 104 is formed shorter than the first air blowing guide 102 (see FIGS. 3 and 6).

  The first air guides 102 are arranged at equal intervals along the axial direction of the rotary shaft 100, while the second air guides 104 are two second air guides provided at both ends of the rotary shaft 100. It is provided at the same position along the axial direction as one air guide 102. Further, as shown in FIG. 6, the second air guide 104 is formed to be inclined at a predetermined angle from the first air guide 102 with the rotary shaft 100 as the center when viewed from the axial direction of the rotary shaft 100. .

  In the defroster damper 76, the rotation shaft 100 between the first and second air guides 102, 104 provided on the outermost side and the adjacent first air guide 102 is inserted into the shaft support groove 92 of the cover member 78, respectively. Then, it is rotatably supported between the dividing walls 66a and 66b of the passage dividing members 62a and 62b.

  When the defroster damper 76 is attached to the casing 12 via the cover member 78, the first and second air blowing guides 102 and 104 provided at both ends of the rotary shaft 100 are disposed in the second opening 88, and The second air guides 104 are arranged so as to be on the sides of the shielding unit 80, and the two first air guides 102 provided at the center of the rotating shaft 100 become the first openings 86, respectively. Placed in. At this time, as shown in FIG. 6, when the first air guide 102 is in the fully closed state, the second air guide 104 is inclined upward by a predetermined angle in the second opening 88. The angle at which the second air guide 104 is disposed is such that the second air guide 104 is substantially vertical with respect to the defroster opening 74 when the first air guide 102 is in a fully open state of the defroster opening 74. It is set to an angle.

  That is, the defroster damper 76 functions as a cantilever damper having only a plurality of first air blowing guides 102 protruding radially outward at a substantially central portion along the rotation shaft 100, It functions as a butterfly damper having first and second air blowing guides 102 and 104 projecting in directions away from each other around the rotating shaft 100 at both ends.

  The defroster damper 76 switches the air blowing state when the air supplied from the third front passage 40 to the sixth front inner passage 70 is blown to the defroster opening 74 and the heat opening 72, and sends the air. The air volume is provided so that the air volume can be adjusted, and the air supply state when the air supplied from the fifth front passage 56 to the sixth front outer passage 64 is blown to the defroster opening 74 is switched, and the air flow amount is changed. Adjustable. The heat opening 72 communicates with an air outlet (not shown) for sending air to the vicinity of the feet of an occupant riding in a front seat (driver's seat, front passenger seat) in the passenger compartment.

  In the vehicle air conditioner 10, the vent opening 48 and the defroster opening 74 are opened above the casing 12, and the vent opening 48 is forward (in the direction of arrow A) and the defroster opening 74. However, it is arrange | positioned in the approximate center of the casing 12 which becomes back (arrow B direction) with respect to this vent opening 48.

  As shown in FIG. 1, the first blower 16 includes a first blower case 108 in which a first blower fan (not shown) is accommodated, and a duct 110 connected to an upper portion of the first blower case 108 for introducing outside air. The first blower case 108 communicates with the inside of the casing 12 through the connecting duct 14.

  Then, the air supplied from the first blower 16 is introduced into the casing 12 through the connection duct 14, and the air mix damper 44, the vent damper 50, the defroster damper 76, and the temperature constituting the damper mechanism 24 shown in FIG. Under the rotating action of the control damper 58 and the sub-defroster damper 60, the front seat and the front seat in the vehicle are passed through the first to fifth front passages 32, 38, 40, 42, 56, the sixth front outer passage 64, and the sixth front inner passage 70. The air is selectively supplied to the defroster opening 74, the vent opening 48, and the heat opening 72 that can blow air to the intermediate seat.

  On the other hand, as shown in FIGS. 1 and 2, the second blower 22 is connected to the lower portion of the casing 12 at a position on the upstream side of the evaporator 18. The rear passage is separated from the first front passage 32 via the separation wall 116.

  The vehicle air conditioner 10 according to the embodiment of the present invention is basically configured as described above. Next, its operation and effects will be described. Here, the operation when the defroster mode in which air is blown only near the front window in order to remove the fogging of the front window in the vehicle will be described.

  First, when the vehicle air conditioner 10 is started, the first blower fan of the first blower 16 rotates under an energizing action with respect to a rotation drive source (not shown), and air (outside air or inside air) taken in through the duct 110 or the like. At the same time as being supplied to the first front passage 32 of the casing 12 through the connecting duct 14, air (internal air) taken in by the second blower fan 118 of the second blower 22 rotating under an energization action to a rotational drive source (not shown). ) Is supplied to a rear passage (not shown).

  The air supplied into the casing 12 is cooled by passing through the first and second cooling parts 34 and 36 of the evaporator 18, respectively, and the second front passage 38 provided with the air mix damper 44 and the rear are provided as cold air. It distribute | circulates to the channel | path (not shown) side, respectively.

  The air mix damper 44 and the cool vent damper 46 block the communication between the second front passage 38 and the third front passage 40, and the vent damper 50 rotates to close the vent opening 48. Thus, the warm air that has passed through the heater core 20 from the second front passage 38 through the fourth front passage 42 is supplied from the third front passage 40 to the sixth front outer passage 64. Then, as shown in FIG. 6, the defroster damper 76 rotates in a direction away from the defroster opening 74 (two-dot chain line shape), opens the defroster opening 74, and the sixth front outer passage 64. By shutting off the communication between the heat opening 72 and the heat opening 72, the air in the sixth front outer passage 64 is supplied from the second opening 88 to the defroster duct, and is blown to the vicinity of the front window and door window in the vehicle. Is done. In this case, by rotating the sub-defroster damper 60 simultaneously, the fifth front passage 56 and the sixth front outer passage 64 are communicated with each other and supplied to the sixth front outer passage 64 via the third front passage 40. In addition to the generated air, the air that has passed through the heater core 20 may be directly supplied to the sixth front outer passage 64.

  Specifically, the air is guided upward along the first air guide 102 of the defroster damper 76 inclined downward, and is supplied from the second opening 88 to a defroster duct (not shown). Air supplied from the fifth front passage 56 under the rotating action of the sub-defroster damper 60 is guided upward along the second air blowing guide 104, and similarly from the second opening 88 to the defroster duct. Supplied.

  Further, since air is supplied from the third front passage 40 to the sixth front inner passage 70, the air is supplied to a defroster duct (not shown) through the first opening 86 communicating with the sixth front inner passage 70. The At this time, since the opening area of the first opening 86 is smaller than the opening area of the second opening 88 by the shielding part 80 of the cover member 78, the air supplied from the first opening 86 to the defroster duct. Is less than the amount of air supplied to the defroster duct through the second opening 88. And the air supplied through the defroster duct from the 2nd opening part 88 is each ventilated by the front window and door window vicinity in a vehicle.

  Next, when the heat differential mode in which air is blown near the front of the passenger and near the front window in the passenger compartment is selected, the vent damper 50 performs the same as in the defroster mode described above. The sixth front outer passage 64 communicates with the second opening 88 of the defroster opening 74 by closing the vent opening 48 and rotating the defroster damper 76 by a predetermined angle so as to be separated from the defroster opening 74. In addition, the sixth front inner passage 70 communicates with the first opening 86 and the heat opening 72 of the defroster opening 74, respectively.

  As a result, a part of the air mixed in the third front passage 40 passes through the sixth front inner passage 70 through the first opening 86 of the defroster opening 74 and the defroster duct (not shown). The air is blown to the vicinity of the window, and the remaining air is blown from the sixth front inner passage 70 to the vicinity of the feet of the occupant in the front seat in the front passenger compartment through the heat opening 72 and the heat outlet (not shown). That is, a part of the air blown to the vicinity of the feet of the occupant in the front seat in the vehicle interior via the heat blower outlet (not shown) is blown to the left and right vicinity of the front window of the vehicle through the first opening 86. Can be used.

  At this time, since the first opening 86 of the defroster opening 74 is set to be smaller than the opening area of the second opening 88 by the shielding portion 80 of the cover member 78, heat is generated from the sixth front inner passage 70. It is suppressed that the air supplied to the blower outlet side is supplied from the first opening 86 to the front window more than necessary. In other words, the opening area of the first opening 86 (the size of the shielding portion 80) is originally unpleasant to the occupant because the air blown to the foot of the occupant in the passenger compartment through the heat outlet is reduced. It is set so as to obtain a sufficient air flow without giving any air.

  In the heat differential mode, detailed description of the case where the air is blown to the intermediate seat and the rear seat in the passenger compartment is omitted.

  As described above, in the present embodiment, the defroster opening 74 has a simple configuration in which the cover member 78 having the shielding portion 80 capable of changing the opening area of the defroster opening 74 is provided on the upper portion of the casing 12. The amount of air blown from the first opening 86 and the second opening 88 to the vehicle interior can be freely adjusted.

  The cover member 78 extends toward the inner side of the casing 12 and can be brought into contact with the passage dividing members 62a and 62b dividing the sixth front outer passage 64 and the sixth front inner passage 70. The rib 90 is provided. Therefore, the rib 90 can be brought into contact with the dividing walls 66a and 66b of the passage dividing members 62a and 62b and brought into surface contact with a simple operation of assembling the cover member 78 to the casing 12, and the dividing walls 66a, The airtightness of the sixth front outer passage 64 and the sixth front inner passage 70 can be maintained by 66b and the rib 90. As a result, the air flowing through the sixth front outer passage 64 and the sixth front inner passage 70 can be prevented from leaking to each other.

  Further, since the rib 90 is provided with a shaft support groove 92 capable of supporting the rotation shaft 100 of the defroster damper 76, the rotation shaft 100 is rotated between the partition walls 66a and 66b of the passage dividing members 62a and 62b. It can be freely supported. As a result, the defroster damper 76 can be reliably and stably rotatably supported with a simple configuration in which the semicircular shaft support groove 92 is formed in the cover member 78.

  Furthermore, the defroster damper 76 is provided with a pair of second air guides 104 so as to face the second opening 88, and the second air guides 104 are centered on the rotating shaft 100 with respect to the first air guide 102. It is inclined upward by a predetermined angle. Therefore, when the first blower guide 102 of the defroster damper 76 is rotated in a direction away from the defroster opening 74, the second blower guide 104 is in a substantially vertical direction. Therefore, the air can be smoothly supplied to the defroster duct connected to the second opening 88 without causing the flow resistance of the air led out to the second opening 88.

  Further, when the defroster opening 74 is shielded, the second opening 88 having a large opening area is securely closed at both end sides of the defroster damper 76 having the first and second air blowing guides 102 and 104, The first opening 86 having a smaller opening area than the second opening 88 can be reliably closed at the center of the cantilevered defroster damper 76 having only the first air blowing guide 102. .

  In addition, since the opening area of the first opening 86 in the defroster opening 74 can be easily and freely changed by replacing with another cover member having the shielding part 80 having a different area, It becomes possible to freely adjust the amount of air blown from the passage 70 to the defroster duct (not shown).

  In addition, the vehicle air conditioner according to the present invention is not limited to the above-described embodiment, and it is needless to say that various configurations can be adopted without departing from the gist of the present invention.

  Further, in the above-described embodiment of the present invention, the cover member 78 is disposed so as to face the defroster opening 74 provided in the upper part of the independent passage in the vehicle width direction in the casing 12, but the present invention is limited to this. For example, by providing the cover member 78 in the vent opening 48 connected to each independent vent duct in order to blow air to the center of the vehicle width direction and in the vicinity of the occupant's face at the left and right ends, the vent duct is provided. The opening area of the vent opening 48 may be adjustable according to the shape.

  Further, the opening communicates with the air outlet in the vehicle compartment via the defroster duct, and among the divided openings, the first opening 86 covered with the cover member 78 and the cover The second opening 88 not covered by the member 78 may be connected to the independent defroster duct.

DESCRIPTION OF SYMBOLS 10 ... Vehicle air conditioner 12 ... Casing 14 ... Connection duct 16 ... 1st air blower 18 ... Evaporator 20 ... Heater core 22 ... 2nd air blower 24 ... Damper mechanism 26 ... 1st division | segmentation casing 28 ... 2nd division | segmentation casing 30 ... Center plate 48 ... vent opening 50 ... vent damper 60 ... sub-defroster dampers 62a and 62b ... passage dividing member 64 ... sixth front outer passage 66a and 66b ... dividing wall 68a and 68b ... blocking wall 70 ... sixth front inner passage 72 ... heat opening 74: Defroster opening 76 ... Defroster damper 78 ... Cover member 80 ... Shielding part 82 ... Partitioning part 84 ... Fixed part 86 ... First opening 88 ... Second opening 90 ... Rib 92 ... Shaft support groove 100 ... Rotating shaft 102 ... 1st ventilation guide 104 ... 2nd ventilation guide

Claims (6)

A casing having a passage through which air to be blown into the vehicle compartment flows, a cooling means for cooling the air, a heating means for heating the air, and a vehicle width formed in the casing and communicating with the outlet in the vehicle compartment A vehicle air conditioner comprising: an opening that opens in a direction; and a damper mechanism that is provided in the vicinity of the opening and switches the air blowing state into the vehicle interior by opening and closing the opening.
The casing is provided with a cover member so as to cover a part of the opening, and the cover member is fixed to the casing,
A cover opening facing the opening and communicating with the opening;
A shielding portion that faces the opening and shields a part of the cover opening in the front or rear direction of the vehicle;
A partition provided in the cover opening and dividing the opening in the vehicle width direction;
With
The damper mechanism extends along the vehicle width direction and is rotatably supported with respect to the cover member, and one shielding plate extends radially with respect to the rotation shaft The opening that is not covered by the cover member, and a cantilever damper that shields the opening of the cover and two shielding plates that extend in the radial direction so as to be separated from each other on the rotating shaft A vehicular air conditioner comprising: a butterfly damper for shielding. The vehicle air conditioner according to claim 1,
The partition includes a rib extending toward the opening, and is provided inside the casing so as to face the opening, and divides the passage in the vehicle front-rear direction. The air conditioner for vehicles is characterized in that the passage is divided independently into a center side and both end sides in the vehicle width direction by contacting the rib and the passage dividing member. The vehicle air conditioner according to claim 2,
The said rib comprises a part of spindle part which supports the said rotating shaft with the said passage division member, The air conditioner for vehicles characterized by the above-mentioned. The vehicle air conditioner according to claim 2 or 3,
The opening is a defroster opening that blows air near the front window in the vehicle interior, and one of the passages on the center side or both ends in the vehicle width direction is warm air heated by the heating means. And a cool air cooled by the cooling means is introduced, and the warm air heated by the heating means is directly introduced into the passage on the other side. . The vehicle air conditioner according to claim 4,
The heating means is disposed below the defroster opening in the casing, and the mixed air is introduced from the vehicle front-rear direction with respect to the one-side passage, and the other-side passage includes When warm air is introduced from below in the casing and the cantilever damper shields the cover opening, the one side of the shielding plate of the butterfly damper is disposed at a position inclined upward relative to the other side. An air conditioner for a vehicle characterized by the above. In the vehicle air conditioner according to any one of claims 1 to 5,
The openings communicate with the air outlets in the vehicle compartment via ducts. Of the divided openings, the openings are covered with the cover member, and are covered with the cover member. A vehicle air conditioner characterized in that another opening not connected to each other is connected to the independent duct.

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