JP6111050B2 - Air conditioner for vehicles - Google Patents

Description

  The present invention relates to a vehicle air conditioner for adjusting temperature and humidity in a passenger compartment.

  Conventionally, as this type of vehicle air conditioner, air sucked into a case is cooled or heated to adjust temperature and humidity, and among vent outlets, foot outlets, and defroster outlets as outlets. There are known ones that blow out into a vehicle compartment from one or a plurality of air outlets.

  In the vehicle air conditioner, the air outlet is switched by switching the air flow passage provided in the case with a flow path switching damper. In the vehicle air conditioner, for example, a vent opening communicating with the vent outlet is provided on the upper surface of the case, and the vent opening is opened and closed by a damper. The damper includes a support shaft that is rotatably supported by the case, and a flat plate that extends from the support shaft to the radially outer side of the support shaft, and opens and closes the vent opening by rotating about the support shaft.

  In a vehicle air conditioner that opens and closes a vent opening by a damper composed of a support shaft and a flat plate, a large space in the vertical direction is required as a space for moving the flat plate in the rotating operation of the damper. There is a problem of becoming.

  Therefore, as a damper for switching the flow path, a slide damper that opens and closes the opening by moving in a direction crossing the vent opening of the case is used, and the vertical space necessary for the operation of the damper that opens and closes the vent opening is reduced. There is known a case in which the size of the case in the vertical direction is reduced (see, for example, Patent Document 1).

JP 2004-98883 A

  In a vehicle air conditioner that uses a slide damper to open and close the vent opening, the case vent is closed to close the gap between the edge of the case vent opening and the slide damper while the vent opening is closed by the slide damper. A seal member is disposed between the edge of the opening and the slide damper. For this reason, during the opening / closing operation of the slide damper, the end portion of the slide damper that extends in the moving direction of the slide damper is always in contact with the edge of the vent opening of the case, which serves as a resistance to the opening / closing operation of the slide damper. A large force is required for opening and closing operations. Further, since the slide damper or the case always slides with respect to the seal member when the slide damper is opened and closed, the seal member is likely to deteriorate, and the edge of the vent opening of the case is closed with the slide damper closed. There is a risk of air leaking from the gap between the part and the slide damper.

  An object of the present invention is to provide a vehicle air conditioner that can reduce the force required for the opening and closing operation of the damper and suppress the deterioration of the seal member.

In order to achieve the above object, the present invention provides a vehicle including a case in which an opening for letting out air to be supplied into a vehicle interior is formed, and a damper that opens and closes the opening by moving in the opening. In the air conditioner, the damper has an end that extends in a direction of opening and closing the end of the damper that contacts the case when the opening is closed toward the end of the opening in the closing direction. An inclined surface extending obliquely toward the center side in the direction orthogonal to the moving direction is formed on the case so as to be parallel to the inclined surface, and the damper inclined surface abuts with the opening closed by the damper. A contact surface that closes the gap between the end of the opening extending in the opening / closing direction of the damper and the case is provided , and an end of the opening of the damper on the opening direction side extends from the surface on the opening side and Orthogonal to the direction of travel A flange extending outward in the direction is provided, and the case is formed so as to be parallel to the flange, and the opening of the damper and the opening of the damper are in contact with the opening of the damper by contacting the flange of the damper with the opening closed by the damper. A flange contact surface that closes the gap with the end of the flange is formed, and the end of the flange that extends outward in the direction perpendicular to the direction of movement of the damper projects to the outside of the case where the air in the case flows Ru movable der the formed air passage.
In order to achieve the above object, the present invention includes a case in which an opening for allowing the air supplied to the vehicle interior to flow out is formed, and a damper that opens and closes the opening by moving in the opening. An air conditioner for a vehicle, wherein a damper has an end that extends in a direction for opening and closing the end of the end that contacts the case when the opening is closed toward an end on the closing direction side of the opening. An inclined surface that extends obliquely toward the center in the direction perpendicular to the direction of movement of the damper is formed, and the case is formed to be parallel to the inclined surface, and the inclined surface of the damper contacts with the opening closed by the damper. Thus, a contact surface for closing a gap between the end of the opening extending in the opening / closing direction of the damper and the case is provided, and the case has an opening as a center vent opening communicating with the center vent outlet, A side vent opening that is disposed adjacent to the vent opening and communicates with the side vent outlet, and the damper includes a center vent portion that opens and closes the center vent opening, and a side that opens and closes a part of the side vent opening. A vent portion, and projects between the center vent opening and the side vent opening of the case between the center vent portion and the side vent portion of the damper, and the closing direction of the center vent opening and the side vent opening is A rib extending diagonally toward the center in the direction perpendicular to the direction of movement of the damper toward the end of the side is provided, and the center vent opening is closed by a damper between the center vent opening and the side vent opening of the case In this state, the center vent opening is closed by the contact of the outer surface in the direction perpendicular to the moving direction of the rib damper. Rib abutment surface that restricts the communication between the center vent opening and the side vent openings in the casing is formed in the state.

  As a result, the inclined surface comes into contact with the abutting surface only when the damper closes the opening, and the inclined surface is separated from the abutting surface except when the damper closes the opening. At this time, the state in which the seal member provided on one of the inclined surface and the contact surface is separated from the other is maintained.

  According to the present invention, since the seal member provided on one of the inclined surface and the contact surface can be kept away from the other during the operation of the damper, the seal member, the inclined surface, and the contact surface The frictional resistance with the other can be reduced, and the operating force required for the opening / closing operation of the damper can be reduced. Further, since the seal member provided on one of the inclined surface and the contact surface can be kept away from the other during the operation of the damper, the deterioration of the seal member can be suppressed.

It is a principal part perspective view of the vehicle interior which shows one Embodiment of this invention. 1 is a perspective view of a vehicle air conditioner. It is side surface sectional drawing of an air conditioning unit. It is a whole perspective view of the 1st damper. It is the figure which looked at the 1st damper from the upper part. It is a partial cross section top view of a case which shows the contact surface which a 1st damper contacts. It is a whole perspective view of the 2nd damper. It is side surface sectional drawing of the air conditioning unit which shows vent mode. It is side surface sectional drawing of the air conditioning unit which shows foot mode. It is side surface sectional drawing of the air conditioning unit which shows bilevel mode. It is side surface sectional drawing of the air conditioning unit which shows a defroster mode. It is side surface sectional drawing of the air conditioning unit which shows differential foot mode. It is the schematic which shows the positional relationship of the inclined surface of a 1st damper, and the contact surface of a case. It is the schematic which shows the positional relationship of the inclined surface of a 1st damper, and the contact surface of a case.

  1 to 14 show an embodiment of the present invention. In addition, the description showing the front-back direction, the left-right direction (width direction), and an up-down direction in this embodiment respond | corresponds to the front-back direction, left-right direction (width direction), and up-down direction of the vehicle provided with the air conditioning apparatus of this invention. It is.

The vehicle air conditioner of the present invention is provided in the dashboard 1 at the front of the vehicle interior. The vehicle air conditioner includes a center vent outlet 2 that faces rearward in the center of the dashboard 1 in the width direction, a side vent outlet 3 that faces rearward on both sides of the dashboard 1 in the width direction, and a lower part of the dashboard 1. It has a foot outlet 4 facing downward on both sides in the width direction and a defroster outlet 5 facing upward across the width direction of the upper part of the dashboard 1.
The vehicle air conditioner adjusts the temperature and humidity of the air in the vehicle interior by blowing out the cooled or heated air from at least one of the plurality of outlets 2, 3, 4, and 5 into the vehicle interior, It removes fogging of the glass.

  The vehicle air conditioner is a fan unit 100 capable of sucking one or both of air outside the passenger compartment and air inside the passenger compartment, and cooling or heating the air sent from the fan unit 100 to supply the air into the passenger compartment. It has an air conditioning unit 200 and is arranged side by side in the width direction of the vehicle.

  The blower unit 100 includes a cylindrical sirocco fan having a plurality of blades provided on the outer periphery. In the blower unit 100, an inside air intake port 101 for inhaling air inside the vehicle interior is provided on the rear side in the front-rear direction, and an outside air intake port 102 for inhaling air outside the vehicle interior is provided on the front side in the front-rear direction. Is provided.

  The air conditioning unit 200 includes a case 210 through which air can flow, a cooling heat exchanger 220 for cooling the air flowing through the case 210, and a heating unit for heating the air flowing through the case 210. From heat exchanger 230, air mix damper 240 for adjusting the air volume of air to be exchanged with heat exchanger 230 for heating air flowing through case 210, center vent outlet 2 and side vent outlet 3 The first damper 250 for adjusting the air volume of the blown air, the second damper 260 for adjusting the air volume of the air blown from the foot outlet 4, and the air volume of the air blown from the defroster outlet 5 And a third damper 270 for adjusting.

  An inflow opening 211 for allowing the air blown from the blower unit 100 to flow in is provided at the front part in the front-rear direction of one side surface of the case 210 in the width direction. A center vent opening 212 communicating with the center vent outlet 2 is provided at the center in the width direction on the rear side of the upper surface of the case 210 in the front-rear direction, and the side vent outlet 3 is provided on both sides of the center vent opening 212 in the width direction. A side vent opening 213 communicating with the side vent is provided. A defroster opening 214 communicating with the defroster outlet 5 is provided adjacent to the center vent opening 212 and the side vent opening 213 on the front side of the upper surface of the case 210 in the front-rear direction. Further, a foot opening 215 communicating with the foot outlet 4 is provided on the rear side of the lower surface of the case 210 in the front-rear direction.

  In the case 210, a cooling heat exchanger 220 is disposed on the front side in the front-rear direction where the inflow opening 211 is provided, and a heating heat exchanger 230 is disposed on the rear side in the front-rear direction. In the case 210, an inflow air ventilation path 216 for circulating the air flowing in from the inflow opening 211 toward the cooling heat exchanger 220, a center vent opening 212, a side vent opening 213, a defroster opening 214, and a foot opening. Outflow air ventilation path 217 for circulating the air flowing out from 215, and heated air for allowing the air that has passed through cooling heat exchanger 220 to pass through heating heat exchanger 230 and communicate with outflow air ventilation path 217 A ventilation path 218 and a cooling air bypass ventilation path 219 that allows the air that has passed through the cooling heat exchanger 220 to communicate with the outflow air ventilation path without passing through the heating heat exchanger 230 are provided.

  In addition, on both sides of the case 210 in the width direction, heating is performed so that a part of the air flowing through the heated air ventilation path 218 flows through the defroster opening 214 without being mixed with the air flowing through the cooling air bypass ventilation path 219. The air bypass ventilation path 218 a is formed so as to project outward in the width direction from the heating air ventilation path 218 to the defroster opening 214 of the outflow air ventilation path 217. The heated air bypass ventilation path 218a is disposed on the outer side in the width direction of the heated air ventilation path 218 and the outflow air ventilation path 217, but is not partitioned with respect to the heating air ventilation path 218 and the outflow air ventilation path 217. It is formed in the same space as the heated air ventilation path 218 and the outflow air ventilation path 217.

  For example, an evaporator as a component of the refrigeration cycle is used as the cooling heat exchanger 220, and the refrigerant passing through the evaporator is cooled by absorbing heat in the evaporator.

  The heat exchanger 230 for heating uses, for example, a radiator connected to a cooling water circuit for cooling the engine of the vehicle, and heats the air passing through the radiator by dissipating the cooling water in the radiator. .

  The air mix damper 240 is a rectangular plate-like member extending in the width direction, and is rotatably supported in the case 210 via support shafts 241 provided on both sides of one end in the short direction. In the air mix damper 240, seal members 242 made of, for example, foamed urethane resin or the like are attached to both surfaces of a plate-like member. The air mix damper 240 rotates the other end in the short direction downward and rearward in the front-rear direction (clockwise in FIG. 3) to thereby provide a heated air ventilation path 218 on the upstream side in the air flow direction of the heat exchanger 230 for heating. Can be closed. In addition, the air mix damper 240 can close the cooling air bypass ventilation path 219 by rotating the other end in the short direction forward and in the front-rear direction (counterclockwise in FIG. 3). Further, the air mix damper 240 has the other end in the short-side direction positioned between the position where the heated air ventilation path 218 is closed and the position where the cooling air bypass ventilation path 219 is closed, thereby cooling the heat exchanger 220. It is possible to circulate a part of the air that has passed through the heated air ventilation path 218 side and to circulate other air to the cooling air bypass ventilation path 219 side. The air mix damper 240 can be driven by an electric motor (not shown), and the opening degree is adjusted in accordance with a necessary blowing temperature, which is a temperature of air supplied to the vehicle interior required to set the vehicle interior to a set temperature.

  The first damper 250 includes a damper body 251 that can partially close the center vent opening 212 and the side vent opening 213 from the inside of the case 210, and a pair of damper bodies 251 that extend downward from both sides in the width direction of the damper body 251. A support portion 252 and a support shaft 253 extending outward in the width direction from the lower end of the support portion 252 are provided. The first damper 250 is rotatably supported in the case 210 via the support shaft 253. In the first damper 250, the center vent opening 212 and the side vent opening 213 are fully opened while the damper main body 251 is positioned on the front side, and the center vent opening 212 is fully moved by moving the damper main body 251 to the rear side. While being in a closed state, the side vent opening 213 is partially open.

  The damper main body 251 is formed to extend in the width direction and to be curved in an arc shape in the front-rear direction. The damper main body 251 is curved in a circular arc shape having a curvature radius that is a distance from the support shaft 253 to the damper main body 251. The damper main body 251 is provided with a center vent portion 251a for opening and closing the center vent opening 212 at the center in the width direction, and side vent portions 251b on both sides in the width direction of the center vent portion 251a. The side vent portion 251b is provided at a position where the front end portion is flush with the front end portion of the center vent portion 251a, and the length dimension in the front-rear direction is smaller than the length dimension in the front-rear direction of the center vent portion 251a. Yes. For this reason, a step is formed between the rear end portion of the center vent portion 251a and the rear end portion of the side vent portion 251b. At both ends in the width direction on the rear side of the center vent portion 251a located at the stepped portion, inclined surfaces 251c extending toward the center portion in the width direction toward the rear end portion are formed. In addition, inclined surfaces 251d extending toward the center in the width direction toward the rear end are formed on the side surfaces of the side vent portions 251b located at both ends in the width direction of the damper main body 251. A seal member 254 is attached to the rear end surface and the inclined surface 251c of the center vent portion 251a and the rear end surface and the inclined surface 251d of the side vent portion 251b.

  A flange 251e that extends upward in the width direction and extends outward in the width direction from both ends in the width direction is formed at the front end portion of the damper main body 251. The flange 251 e has a width dimension that is larger than the width dimension of the damper body 251. The portion of the flange 251 e that protrudes outward in the width direction of the damper main body 251 is movable in the heated air bypass ventilation path 218 a that extends outward in the width direction of the case 210. A seal member 255 is attached to the outer edge portion of the rear surface of the flange 251e.

  On the side of the center vent portion 251a between the center vent portion 251a and each side vent portion 251b of the damper main body 251, a rib 251f extending upward in the front-rear direction of the center vent portion 251a is formed. A seal member 256 is attached to the outer side surface of each rib 251f in the width direction.

  When the front side of the center vent opening 212 and the side vent opening 213 is closed by the damper main body 251, the rear end surface and the inclined surface 251 c of the center vent portion 251 a shown in FIG. 5 become the rear edge of the center vent opening 212 of the case 210 shown in FIG. And abutment surface 212a formed so as to be parallel to the rear end surface of the center vent portion 251a and the inclined surface 251c. Further, the rear end surface and the inclined surface 251d of the side vent portion 251b shown in FIG. 5 are provided at the center portion in the front-rear direction of the side vent opening 213 and the side edge portion on the outer side in the width direction of the case 210 shown in FIG. It abuts on the abutting surface 213a formed so as to be parallel to the rear end surface of 251b and the inclined surface 251d. Further, the rear surface of the flange 251e shown in FIG. 5 is provided at the front edge portion of the center vent opening 212 and each side vent opening 213 of the case 210 shown in FIG. 3, and is parallel to the rear surface of the flange 251e. It abuts on the abutment surface 212b formed to be formed. The rear end surface of the center vent 251a and the inclined surface 251c and the contact surface 212a, the rear end surface of the side vent 251b, the inclined surface 251d and the contact surface 213a, and the rear surface of the flange 251e and the contact surface 212b are parallel. Is not limited to being strictly parallel, and may be substantially parallel as long as no large frictional resistance is generated between the contact surfaces 212a, 213a, and 212b when the damper body 251 moves.

  Here, the portion of the flange 251e that protrudes outward in the width direction of the damper main body 251 contacts the wall surface of the heated air bypass ventilation path 218a with the contact surface 212b.

  Thereby, the front side of the center vent opening 212 and the side vent opening 213 is closed without a gap by the damper main body 251.

  Further, when the damper main body 251 closes part of the front side of the center vent opening 212 and the side vent opening 213, the outer side surface of each rib 251 f is provided between the center vent opening 212 and the side vent opening 213 of the case 210. It abuts against the abutment surface 212c.

  As a result, the gap that communicates the center vent opening 212 and the side vent opening 213 in the case 210 is closed by the damper main body 251.

  The second damper 260 is a rectangular member extending in the width direction, and in the front-rear direction of the center vent opening 212 and the side vent opening 213 in the case 210 via support shafts 261 provided on both sides of one end in the short direction. It is supported so that it can freely rotate rearward. As for the 2nd damper 260, the sealing member 262 is affixed along the outer edge part of both surfaces of a plate-shaped member. The second damper 260 can close the ventilation path 215a communicating with the foot opening 215 by rotating the other end in the short direction downward and backward in the front-rear direction (clockwise in FIG. 3). Further, the second damper 260 can close a part of the rear side of the side vent opening 213 by rotating the other end side in the short direction forward and upward in the front-rear direction (counterclockwise in FIG. 3). Further, the second damper 260 is located between the position where the ventilation path 215a is closed and the position where the rear side of the side vent opening 213 is closed, so that a part of the air that has passed through the cooling heat exchanger 220 is removed. It is possible to circulate to the foot opening 215 side and allow other air to circulate to the side vent opening 213 side.

  In addition, the rear side of the side vent opening 213 can be closed on the surface of the second damper 260 on the side of the center vent opening 212 with the first damper 250 closing the front side of the center vent opening and the side vent opening 213. In addition, a recess 263 that can receive the rear end of the center vent 251a of the first damper 250 is formed.

  Further, the surface of the second damper 260 on the side of the center vent opening 212 is provided between the center vent opening 212 and the side vent opening 213 of the case 210 in a state where the rear side of the side vent opening 213 is closed by the second damper 260. A seal member 264 is attached to the position corresponding to the portion in the short direction. As a result, the gap communicating between the center vent opening 212 side and the side vent opening 213 side in the case 210 is closed by the seal member 264 when the side vent opening 213 is closed by the second damper 260.

  The third damper 270 is a plate-like member extending in the width direction, and is rotatably supported in the case 210 via support shafts 271 provided on both sides of a substantially central portion in the short-side direction. The third damper 270 has a seal member 272 attached to the lower surface of the portion that opens and closes the front side of the defroster opening 214 and the upper surface of the portion that opens and closes the rear side. Accordingly, the third damper 270 closes the defroster opening 214 by rotating clockwise in FIG. 3, and opens the defroster opening 214 by rotating counterclockwise in FIG.

  The first to third dampers 250, 260, and 270 are connected via a power transmission device such as a gear, and are driven by an electric motor (not shown).

  In the vehicle air conditioner configured as described above, when air having adjusted temperature and humidity is supplied to the vehicle interior, one or a plurality of air outlets 2, 3, 4 and 5 are provided. A plurality of blowing modes are provided as patterns for blowing air from the exit into the vehicle interior, and one blowing mode can be selected from the plurality of blowing modes. Below, each blowing mode of vent mode, foot mode, bilevel mode, defroster mode, and differential foot mode is demonstrated.

The vent mode is set mainly when the necessary blow-off temperature is low. Therefore, the air mix damper 240 is set at a position where all or most of the air that has passed through the cooling heat exchanger 220 flows to the cooling air bypass ventilation path 219 side.
In the vent mode, as shown in FIG. 8, the first damper 250 opens the front side of the center vent opening 212 and the side vent opening 213, the second damper 260 opens the rear side of the side vent opening 213 and the foot opening 215. The air passage 215 a communicating with the air is closed, and the defroster opening 214 is closed by the third damper 270.
As a result, the air that has flowed through the inflow air ventilation path 216 and passed through the cooling heat exchanger 220 flows through the outflow air ventilation path 217 and flows out from the center vent opening 212 and the side vent opening 213, and the center vent outlet 2 and the side vent outlet 3 are blown into the passenger compartment.

The foot mode is mainly set when the necessary blow-off temperature is high. For this reason, the air mix damper 240 is set at a position where all or most of the air that has passed through the cooling heat exchanger 220 flows to the heated air ventilation path 218 side.
In the foot mode, as shown in FIG. 9, the first damper 250 closes the front side of the center vent opening 212 and the side vent opening 213, the second damper 260 closes the rear side of the side vent opening 213 and the foot opening 215. The air passage 215 a communicating with the air is opened, and the defroster opening 214 is closed by the third damper 270.
As a result, the air that has flowed through the inflow air ventilation path 216 and passed through the cooling heat exchanger 220 flows through the outflow air ventilation path 217, flows out of the foot opening 215, and is blown out from the foot outlet 4 into the vehicle interior. The

The bi-level mode is set in the case of a required blowing temperature between the necessary blowing temperature at which the vent mode is set and the necessary blowing temperature at which the foot mode is set. For this reason, the air mix damper 240 is set at a position where the air that has passed through the cooling heat exchanger 220 is branched and flows into each of the heating air ventilation path 218 and the cooling air bypass ventilation path 219.
In the bi-level mode, as shown in FIG. 10, a part of the center vent opening 212 and a part of the front side of the side vent opening 213 are opened by the first damper 250, and the rear side of the side vent opening 213 by the second damper 260. And the ventilation path 215 a communicating with the foot opening 215 is opened, and the defroster opening 214 is closed by the third damper 270.
As a result, the air that has flowed through the inflow air ventilation path 216 and passed through the cooling heat exchanger 220 flows through the outflow air ventilation path 217 and flows out from the center vent opening 212, the side vent opening 213, and the foot opening 215, The air is blown from the center vent outlet 2, the side vent outlet 3 and the foot outlet 4 into the vehicle compartment.

The defroster mode is set when the windshield and the side glass are fogged. For this reason, the air mix damper 240 is set at a position where all or most of the air that has passed through the cooling heat exchanger 220 flows to the heated air ventilation path 218 side.
In the defroster mode, as shown in FIG. 11, the front side of the center vent opening 212 and the side vent opening 213 is closed by the first damper 250, the rear side of the side vent opening 213 is opened by the second damper 260, and the foot opening 215 is opened. The ventilation path 215 a communicating with the air is closed, and the defroster opening 214 is opened by the third damper 270.
As a result, the air that has flowed through the inflow air ventilation path 216 and passed through the cooling heat exchanger 220 flows through the outflow air ventilation path 217 and flows out from the side vent opening 213 and the defroster opening 214, and the side vent outlet 3 And it blows off from the defroster blower outlet 5 to a vehicle interior.

The differential foot mode is mainly set when the necessary blowing temperature is high and the windshield and the side glass are fogged. For this reason, the air mix damper 240 is set at a position where all or most of the air that has passed through the cooling heat exchanger 220 flows to the heated air ventilation path 218 side.
In the differential foot mode, as shown in FIG. 12, the front side of the center vent opening 212 and the side vent opening 213 is closed by the first damper 250, the rear side of the side vent opening 213 is opened by the second damper, and the foot opening 215 is opened. The air passage 215 a communicating with the air is opened, and the defroster opening 214 is opened by the third damper 270.
Thus, the air that has flowed through the inflow air ventilation path 216 and passed through the cooling heat exchanger 220 flows through the outflow air ventilation path 217 and flows out from the side vent opening 213, the defroster opening 214, and the foot opening 215. From the vent outlet 3, the foot outlet 4, and the defroster outlet 5, the air is blown into the vehicle interior.

  In the defroster mode and the differential foot mode, a part of the air heated through the heating heat exchanger 230 flows out from the defroster opening 214 through the heated air bypass ventilation passages 218a on both sides in the width direction of the case 210. It is possible to make it. For this reason, since the air flowing out from the defroster opening 214 includes high-temperature air that is not mixed with the air flowing through the cooling air bypass ventilation path 219, it is easy to remove the fogging of the glass.

  When the blowing mode is switched, the front side of the side vent opening 213 and the center vent opening 212 are opened and closed by the first damper 250. An end portion extending in the front-rear direction on both sides in the width direction of the center vent portion 251a of the damper main body 251 is formed with an inclined surface 251c extending obliquely toward the center portion in the width direction toward the end portion in the direction of closing the center vent opening 212. Has been. In addition, the end portions extending in the front-rear direction of the side vent portions 251b located on both sides in the width direction of the damper main body 251 are directed toward the end in the width direction of the damper main body 251 toward the end portion in the direction of closing the side vent opening 213. An inclined surface 251d extending obliquely is formed. Accordingly, when the first damper 250 is operated, the inclined surfaces 251c and 251d are separated from the contact surfaces 212a and 213a as shown in FIG. 13, and the side by the first damper 250 is shown in FIG. Only when the front side of the vent opening 213 and the center vent opening 212 are closed, the inclined surfaces 251c and 251d can be brought into contact with the contact surfaces 212a and 213a.

Thus, according to the vehicle air conditioner of the present embodiment, the front end of the side vent opening 213 of the first damper 250 and the end portion extending in the opening / closing direction of the center vent opening 212 are connected to the front side of the side vent opening 213 and the center. Inclined surfaces 251c and 251d extending obliquely toward the width direction center of the damper main body 251 toward the closing direction of the vent opening 212 are formed in the case 210 so as to be parallel to the inclined surfaces 251c and 251d. In a state where the front side of the side vent opening 213 and the center vent opening 212 are closed by the damper 250, the inclined surfaces 251 c and 251 d of the first damper 250 come into contact with each other, so that the first side of the front side of the side vent opening 213 and the first in the center vent opening 212. The gap between the end of the damper 250 extending in the moving direction and the case 210 Abutment surface 212a of infarction, 213a are formed.
Accordingly, when the first damper 250 is in operation, the seal member 254 provided on the inclined surfaces 251c and 251d of the first damper 250 can be separated from the contact surfaces 212a and 213a. The frictional resistance between 254 and the contact surfaces 212a and 213a can be reduced, and the operating force required for the opening / closing operation of the first damper 250 can be reduced. Further, since the seal member 254 can be separated from the contact surfaces 212a and 213a during the operation of the first damper 250, deterioration of the seal member 254 can be suppressed.

Further, the front end of the side vent opening 213 of the first damper 250 and the end portion on the opening direction side of the center vent opening 212 extend from the side vent opening 213 and the center vent opening 212 side of the damper body 251 and have a width. A flange 251e extending outward in the direction is provided, and the case 210 is formed to be parallel to the flange 251e. The flange 251e is formed in a state where the front side of the side vent opening 213 and the center vent opening 212 are closed by the first damper 250. By abutting, a contact surface 212 b that closes a gap between the front side of the damper main body 251 and the case 210 at the side vent opening 213 and the center vent opening 212 is provided.
Accordingly, the gap between the front side of the damper main body 251 and the case 210 can be closed by the surface contact between the flange 251e of the damper main body 251 and the contact surface 212b, so that the first vent 250 can reliably close the side vent opening 213. The front and center vent openings 212 can be closed.

Further, both end sides in the width direction of the flange 251e are movable in the heated air bypass ventilation path 218a formed so as to protrude outward from the other portions of the case 210.
Thereby, since the both ends in the width direction of the flange 251e can be arranged in the heated air bypass ventilation path 218a projecting outward from the other part of the case 210, the side vent opening 213 is not increased without increasing the outer diameter. In addition, the width dimension of the center vent opening 212 can be set as required. In addition, since the moving space at both ends in the width direction of the flange 251e is the heated air bypass ventilation path 218a, it is not necessary to secure a moving space on both sides in the width direction of the flange 251e, and the case can be downsized. It becomes.

The first damper 250 includes a damper main body 251 that opens and closes the front side of the side vent opening 213 and the center vent opening 212, and a support portion 252 that extends from the damper main body 251 to the inside of the case 210 and supports the damper main body 251. And a support shaft 253 that rotatably supports the end portion of the support portion 252 in the case 210, and the damper main body 251 is moved around the support shaft 253 as a rotation center to thereby move the front side and the center of the side vent opening 213. The vent opening 212 is opened and closed.
Accordingly, by rotating the support shaft 253 of the first damper 250, the front side of the side vent opening 213 and the center vent opening 212 can be opened and closed, so that a simple mechanism can be used without requiring a complicated mechanism. It is possible to reduce the manufacturing cost.

Further, between the center vent portion 251a and the side vent portion 251b of the damper main body 251, the space extends between the center vent opening 212 and the side vent opening 213, and the front side of the side vent opening 213 and the center vent opening. A rib 251f extending obliquely toward the width direction center of the damper main body 251 toward the end on the direction side closing the 212 is provided, and between the center vent opening 212 and the side vent opening 213 of the case 210, A contact surface 212 c is provided for restricting communication between the center vent opening 212 and the side vent opening 213 in the case 210 in a state where the center vent opening 212 is closed by the one damper 250.
As a result, during the operation of the first damper 250, the seal member 256 provided on the rib 251f can be separated from the contact surface 212c, so that the space between the seal member 256 and the contact surface 212c. The frictional resistance can be reduced, and the operating force required for the opening / closing operation of the first damper 250 can be reduced. Further, since the seal member 256 can be separated from the contact surface 212c during the operation of the first damper 250, the deterioration of the seal member 256 can be suppressed.

The case 210 includes a second damper 260 that is provided in the vicinity of the center vent opening 212 and the side vent opening 213 in the case 210 and opens and closes the ventilation path 215a that communicates with the foot opening 215. The second damper 260 defines the side vent opening 213. The rear side can be closed.
As a result, the opening degree of the side vent opening 213 can be adjusted from the fully open state to the fully closed state by the first damper 250 and the second damper 260, and therefore it is necessary to attach an open / close damper to each side vent outlet 3. Therefore, the manufacturing cost can be reduced.

  In the above-described embodiment, the inclined surfaces 251c, 251d and the ribs 251f of the first damper 250 are each formed in a planar shape extending obliquely toward the center in the width direction of the damper body 251. It is not limited to. For example, as long as it is an inclined surface that extends obliquely toward the center portion in the width direction of the damper main body 251, it may be formed in a curved surface shape.

  In the embodiment, the first damper 250 includes the damper main body 251, the pair of support portions 252 formed so as to extend downward from both sides in the width direction of the damper main body 251, and the width direction outer side from the lower end of the support portion 252. Although the front side of the side vent opening 213 and the center vent opening 212 are opened and closed by rotating the damper main body 251 around the support shaft 253 as a rotation center. It is not limited to. For example, a damper that opens and closes the opening by moving in the opening is provided with a rail that guides the end of the damper in the vicinity of the opening of the case 210, and the damper is parallel to the surface of the case 210 provided with the opening. You may make it open and close an opening by moving.

  Moreover, in the said embodiment, although the 1st damper 250 which opens and closes the front side of the side vent opening 213 and the center vent opening 212 was shown as an application example of this invention, it is not restricted to this. For example, the present invention may be applied to a damper that opens and closes one vent opening that communicates with the center vent outlet 2 and the side vent outlet 3, or may be applied to a damper that opens and closes the defroster opening 214 and the foot opening 215. Good.

  In the above-described embodiment, the seal member 254, 255, 256 is attached to the damper main body 251 of the first damper 250. However, the present invention is not limited to this. A seal member may be attached to the contact surfaces 212a, 212b, 212c, and 213a with which the damper main body 251 contacts when the front side of the side vent opening 213 and the center vent opening 212 are closed by the first damper 250.

  2 ... Center vent outlet, 3 ... Side vent outlet, 4 ... Foot outlet, 200 ... Air conditioning unit, 210 ... Case, 212 ... Center vent opening, 212a ... Contact surface, 212b ... Contact surface, 212c ... Contact surface, 213 ... side vent opening, 213a ... contact surface, 215 ... foot opening, 218a ... heated air bypass ventilation path, 250 ... first damper, 251 ... damper body, 251a ... center vent part, 251b ... side vent part 251c ... inclined surface, 251d ... inclined surface, 251e ... flange, 251f ... rib, 252 ... support part, 253 ... support shaft, 260 ... second damper.

Claims (4)

A vehicle air conditioner comprising: a case in which an opening for flowing out air to be supplied into a vehicle interior is formed; and a damper that opens and closes the opening by moving in the opening;
Among the end portions that contact the case when the opening is closed, the end portion that extends in the direction to open and close the opening extends in the direction orthogonal to the moving direction of the damper toward the end portion on the closing direction side of the opening. An inclined surface extending obliquely toward the center side,
The case is formed so as to be parallel to the inclined surface, and the damper inclined surface abuts with the damper closed, thereby closing the gap between the end of the opening extending in the opening / closing direction of the damper and the case. A contact surface is provided ,
At the end of the opening of the damper on the opening direction side, a flange that extends from the surface on the opening side and extends outward in a direction perpendicular to the movement direction of the damper is provided,
The case is formed to be parallel to the flange, and the flange that closes the opening by the damper closes the gap between the opening and the end of the opening of the damper on the opening direction side. A contact surface is formed,
Flange end extending outwardly in a direction orthogonal to the moving direction of the damper, the air inside the casing and wherein the Ru movable der the formed air passage so as to protrude outside the case circulating Air conditioner for vehicles. A vehicle air conditioner comprising: a case in which an opening for flowing out air to be supplied into a vehicle interior is formed; and a damper that opens and closes the opening by moving in the opening;
Among the end portions that contact the case when the opening is closed, the end portion that extends in the direction to open and close the opening extends in the direction orthogonal to the moving direction of the damper toward the end portion on the closing direction side of the opening. An inclined surface extending obliquely toward the center side,
The case is formed so as to be parallel to the inclined surface, and the damper inclined surface abuts with the damper closed, thereby closing the gap between the end of the opening extending in the opening / closing direction of the damper and the case. A contact surface is provided,
The case is provided with a center vent opening that communicates with the center vent outlet, and a side vent opening that is disposed adjacent to the center vent opening and communicates with the side vent outlet, as the opening,
The damper has a center vent part that opens and closes the center vent opening, and a side vent part that opens and closes a part of the side vent opening,
Between the center vent portion and the side vent portion of the damper, it protrudes between the center vent opening and the side vent opening of the case, and the damper is directed toward the end of the center vent opening and the side vent opening on the closing direction side. A rib extending obliquely is provided on the center side in the direction orthogonal to the moving direction of
Between the center vent opening and the side vent opening of the case, the center vent opening is closed by contacting the outer surface in the direction perpendicular to the moving direction of the rib damper with the center vent opening closed by the damper. car dual air conditioner you characterized in that the rib abutment surface that restricts the communication is formed between the center vent opening and the side vent openings in the case in the state. The case is provided with a foot opening communicating with the foot outlet.
In the vicinity of the center vent opening and side vent opening in the case, a foot damper is provided to open and close the ventilation path communicating with the foot opening.
Foot damper is in a state in which opens the ventilation path communicating with the foot opening, to claim 2, characterized in that the side vent portions of the damper of the side vent opening closable portions other than a portion to be closed The vehicle air conditioning apparatus described. The damper includes a damper main body that opens and closes the opening, a support portion that is provided so as to extend from the damper main body to the inside of the case, a support portion that supports the damper main body, and a support shaft that rotatably supports an end portion of the support portion in the case. 4. The vehicle air conditioner according to claim 1, wherein the opening is opened and closed by moving the damper main body about the support shaft as a rotation center. 5.

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