JP6111051B2 - 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 ventilation path 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 flexible membrane member provided with an opening through which air flowing through the ventilation path can pass, and a winding drive shaft capable of winding up one end side of the membrane member The film-shaped member winding type damper provided with a winding driven shaft capable of winding the other end side of the film-shaped member is used, and the position of the opening of the film-shaped member is moved in the air passage by moving the opening. An air conditioner that opens and closes a road is known (see, for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 08-300935

  In the vehicle air conditioner equipped with the film member winding type damper, the film member is wound around the winding driven shaft by attaching a biasing means such as a coil spring to the winding driven shaft of the damper. The urging force is applied in the rotation direction to be taken, and the winding drive shaft is driven by the electric motor by driving the winding drive shaft by the electric motor. For this reason, the film-shaped member take-up type damper has a complicated structure and a high manufacturing cost. In addition, when the urging means is damaged or the urging means is detached from the take-up driven shaft, the take-up drive shaft cannot be rotated to rotate the take-up drive shaft, so that it is difficult to switch the ventilation path. .

  An object of the present invention is to provide a vehicle air conditioner that can move a film-like member without using a complicated mechanism and can reduce the manufacturing cost.

In order to achieve the above object, the present invention includes a case in which a ventilation path is provided inside, and a flow rate adjustment damper that is provided so that the ventilation path can be opened and closed and that can adjust the flow rate of air flowing through the ventilation path. The air conditioning apparatus for a vehicle includes a flexible membrane member provided with an opening through which air flowing through a ventilation path can pass, and the membrane member is wound from one end side. A first take-up shaft that can be wound, a second take-up shaft that can wind up the film-like member from the other end side, and a film-like member wound around one of the first and second take-up shafts. A guide shaft for guiding the power to the first winding shaft and the second winding shaft so that power is directly transmitted from one of the first winding shaft and the second winding shaft to the other. A power transmission mechanism for rotating the other member in the feeding direction of the membrane member by a force for rotating the member in the winding direction; A, is disposed at a position Volume 1 shaft and the second winding shaft are adjacent to each other, the guide shaft is separated in a direction transverse to the air passage to the first winding shaft and the second winding shaft position The power transmission mechanism is a gear that is provided on each of the first winding shaft and the second winding shaft and directly meshes with each other .
In order to achieve the above object, the present invention provides a case in which a ventilation path is provided inside, a flow rate adjustment damper that is provided so that the ventilation path can be opened and closed, and that can adjust the flow rate of air flowing through the ventilation path. The flow adjustment damper includes a flexible membrane member provided with an opening through which air flowing through the ventilation path can pass, and the membrane member from one end side. A first winding shaft that can be wound, a second winding shaft that can wind the film-like member from the other end, and one of the first winding shaft and the second winding shaft that is wound around the film-like member One of the first winding shaft and the second winding shaft is provided so that power is transmitted directly from one of the first winding shaft and the second winding shaft to the other. Power transmission machine that rotates the other in the feeding direction of the membrane member by the force of rotating the membrane in the winding direction of the membrane member If has, the guide shaft, the tension adjusting mechanism for adjusting the tension of the film-like member between the first winding shaft and the second winding shaft is provided.

  Thereby, the rotational force in the direction of winding the film-shaped member with respect to one of the first winding shaft and the second winding shaft acts as the rotational force in the direction of feeding the film-shaped member to the other via the power transmission mechanism. Without using the biasing means, one of the first winding shaft and the second winding shaft rotates in the direction in which the film-shaped member is wound, and at the same time the other rotates in the direction in which the film-shaped member is fed out.

  According to the present invention, one of the first winding shaft and the second winding shaft is rotated in the direction of winding the film-shaped member without using the biasing means, and at the same time, the other is rotated in the direction of feeding the film-shaped member. Therefore, the film-like member can be moved without using a complicated mechanism, and the manufacturing cost can be reduced.

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 a disassembled perspective view of an air conditioning unit. It is side surface sectional drawing of an air conditioning unit. It is a perspective view of an air mix damper unit. It is sectional drawing of an air mix damper unit. It is a perspective view of a switching damper unit. It is sectional drawing of a switching damper unit. 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.

  1 to 13 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. As shown in FIG. 1, the vehicle air conditioner includes a center vent outlet 2 that faces rearward in the center of the dashboard 1 in the width direction, and a side vent outlet 3 that faces rearward on both sides in the width direction of the dashboard 1. The foot blower outlet 4 that faces downward on both sides in the width direction of the lower part of the dashboard 1 and the defroster blower outlet 5 that faces upward in the width direction of the upper part of the dashboard 1 are provided.
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.

  As shown in FIG. 2, the vehicle air conditioner cools or heats a blower unit 100 capable of sucking one or both of air outside the passenger compartment and air inside the passenger compartment, and air sent from the blower unit 100. And an air conditioning unit 200 for supplying the vehicle interior, and are 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. A heat exchanger 230, a first air mix damper 240 and a second air mix damper 250 for adjusting the air volume of air to be exchanged with the heat exchanger 230 for heating air flowing in the case 210, and a vehicle interior And a mode switching damper 260 for switching the air outlets 2, 3, 4 and 5 for blowing out air.

  As shown in FIG. 4, an inflow opening 211 for allowing the air blown from the blower unit 100 to flow in is provided in the front part in the front-rear direction on one side surface of the case 210 in the width direction. A vent opening 212 communicating with the center vent air outlet 2 and the side vent air outlet 3 is provided at the center of the upper surface of the case 210 in the front-rear direction. A defroster opening 213 communicating with the defroster outlet 5 is provided adjacent to the vent opening 212 on the front side in the front-rear direction of the upper surface of the case 210. Furthermore, a foot opening 214 communicating with the foot outlet 4 is provided on the rear side of the case 210 in the front-rear direction. The air in the case 210 is blown out from the respective outlets 2, 3, 4 and 5 through the ducts connected to the respective openings 212, 213 and 214 from the respective openings 212, 213 and 214.

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

  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 first air mix damper 240 opens and closes the upper side of the heating air exchanger 217 on the upstream side in the air flow direction of the heating heat exchanger 230 and the cooling air bypass vent 218. The first air mix damper 240 is a rectangular plate-like member extending in the width direction, and is rotatably supported by the case 210 via support shafts 241 provided on both sides at one end in the short direction. The first air mix damper 240 has an upper portion of the heated air ventilation path 217 on the upstream side of the heat exchanger 230 for heating by rotating the other end side in the short side downward and rearward in the front-rear direction (clockwise in FIG. 4). Can be closed. Moreover, the 1st air mix damper 240 can close the cooling air bypass ventilation path 218 by rotating the other end side of a transversal direction forward and upward (counterclockwise in FIG. 4). Further, the first air mix damper 240 has the other end in the short-side direction positioned between the position where the heated air ventilation path 217 is closed and the position where the cooling air bypass ventilation path 218 is closed, thereby performing heat exchange for cooling. Part of the air that has passed through the vessel 220 can be circulated to the heated air ventilation path 217 side, and the other air can be circulated to the cooling air bypass ventilation path 218 side.

  The second air mix damper 250 opens and closes the lower side of the heating air exchanger 217 on the upstream side in the air flow direction of the heating heat exchanger 230, and includes a pair of widthwise air mix damper units 250a. Yes. As shown in FIG. 3, each air mix damper unit 250 a is detachably attached from both side surfaces of the case 210 in the width direction.

  As shown in FIG. 6, the air mix damper unit 250 a includes a film member 251 stretched in a direction crossing the heated air ventilation path 217, and a first winding shaft 252 that can wind up one end side of the film member 251. And the second winding shaft 253 capable of winding the other end of the film-shaped member 251, and the film-shaped member 251 between the first winding shaft 252 and the second winding shaft 253 are connected to the heated air ventilation path 217. And a guide shaft 254 for guiding the film-like member to the first winding shaft 252 side or the second winding shaft 253 side, and rotation of one of the first winding shaft 252 and the second winding shaft 253 A power transmission mechanism 255 for transmitting force to the other, a film-like member 251, a first winding shaft 252, a second winding shaft 253, a guide shaft 254, and a frame-like member 256 on which the power transmission mechanism 255 is supported. ,have.

  The film member 251 is a flexible film member made of, for example, polyethylene resin. The outer shape of the film-like member 251 is rectangular, and one end in the longitudinal direction can be taken up by the first take-up shaft 252, and the other end in the longitudinal direction can be taken up by the second take-up shaft 253. . The film-like member 251 is provided with a pair of openings 251a in the short direction extending in the longitudinal direction at a predetermined position in the longitudinal direction.

  The first winding shaft 252 and the second winding shaft 253 are each made of a cylindrical member extending in the width direction, and both sides in the width direction are rotatably supported adjacent to each other in the frame-shaped member 256. The first take-up shaft 252 and the second take-up shaft 253 can wind the film-like member 251 by locking the longitudinal end of the film-like member 251 and rotating it in one direction, and rotate in the other direction. By doing so, the film-like member 251 can be extended.

  The guide shaft 254 is made of a cylindrical member extending in the width direction, and is provided at a position away from the first winding shaft 252 and the second winding shaft 253 of the frame-shaped member 256. A film-like member 251 that moves between the first winding shaft 252 and the second winding shaft 253 is wound around the guide shaft 254. Therefore, the membrane member 251 extends from one end side in the direction perpendicular to the air flow direction of the heated air ventilation path 217 toward the other end side, and is folded back at the guide shaft 254 toward the one end side from the other end side. It will be in the state stretched so that it may extend.

  Further, a tension adjusting mechanism for adjusting the tension of the film-like member 251 can be added to the guide shaft 254. The tension adjusting mechanism is configured such that the cross-sectional shape of the guide shaft 254 is formed in an elliptical shape, the guide shaft 254 can be rotated around the axis of the guide shaft 254 with respect to the frame-like member 256, and the rotation is restricted at an arbitrary position. It is configured by making possible. The tension of the film-like member 251 wound around the guide shaft 254 is adjusted by adjusting the rotation position of the guide shaft 254. The guide shaft 254 as the tension adjusting mechanism is not limited to an elliptical cross-sectional shape, and may be any cross-sectional shape in which the distance from the rotation center to the outer surface is partially different. For example, the longitudinal direction of a rectangular plate-shaped member It is good also considering what made a direction the rotation center, as a guide shaft.

  The power transmission mechanism 255 is gears 255a and 255b that are provided at the respective ends of the first winding shaft 252 and the second winding shaft 253 and have the same number of teeth. The gears 255 a and 255 b are attached to the end portions of the first winding shaft 252 and the second winding shaft 253 facing both side surfaces of the case 210 in the width direction. A gear 255a attached to the first winding shaft 252 and a gear 255b attached to the second winding shaft 253 are meshed with each other, and one of the first winding shaft 252 and the second winding shaft 253 is connected to one another. When rotating in the direction, one rotational force is transmitted to the other through the gears 255a and 255b, and the other of the first winding shaft 252 and the second winding shaft 253 rotates in the other direction.

  The frame-like member 256 is a plate-like member extending on a surface orthogonal to the lower side on the upstream side in the air flow direction of the heating heat exchanger 230 of the heated air ventilation path 217, and the width of the case 210 with respect to the case 210. It is detachable from both directions. The frame-like member 256 is provided with an opening 256 a through which air flowing through the heated air ventilation path 217 can pass, and the opening 256 a is opened and closed by the film-like member 251. That is, the opening 256a of the frame-like member 256 is opened by positioning the opening 251a of the film-like member 251 in the opening 256a portion, and is closed by positioning a portion other than the opening 251a of the film-like member 251 in the opening 256a portion. Is done. A gap between the outer periphery of the frame-like member 256 and the heated air ventilation path 217 is closed by a seal member (not shown). Further, the gap between the edge of the opening 256a of the frame-like member 256 and the film-like member 251 is closed by the film-like member 251 being in close contact with the edge of the opening 256a of the frame-like member 256 (FIG. 6). (In order to explain the structure, the gap is shown largely).

  The first air mix damper 240 and the second air mix damper 250 can be driven by an electric motor (not shown), and have a necessary blowing temperature that is a temperature of air supplied to the vehicle interior required to set the vehicle interior to a set temperature. The opening is adjusted accordingly.

  The mode switching damper 260 is provided between the outflow air ventilation path 216 and the vent opening 212, the defroster opening 213, and the foot opening 214, and includes two switching damper units 260a in total in the width direction and the front-rear direction. It is configured. Each switching damper unit 260a is detachably attached from both side surfaces of the case 210 in the width direction.

  As with the air mix damper unit 250a, the switching damper unit 260a includes a membrane member 261, a first winding shaft 262, a second winding shaft 263, a guide shaft 264, and a power transmission mechanism 265 (gears 265a and 265b). Have.

  The frame-like member 266 is a plate-like member that divides the outflow air ventilation path 216, the vent opening 212, the defroster opening 213, and the foot opening 214 in the horizontal direction. As shown in FIG. 8, the frame-shaped member 266 is provided with two openings 266a and 266b through which air can flow so that they are aligned in the front-rear direction of the vehicle. That is, the openings 266a and 266b of the frame-shaped member 266 are opened by positioning the opening 261a of the film-like member 261 at the openings 266a and 266b, and the portions other than the opening 261a of the film-like member 261 at the openings 266a and 266b. Is closed by positioning.

  The mode switching damper 260 moves the opening 261a of the film-like member 261 by driving the first winding shaft 262 and the second winding shaft 263 by an electric motor (not shown) in each switching damper unit 260a, so that air flows out. The opening 212, 213, 214 to be switched is switched.

  The mode switching damper 260 is provided with four openings 261a and 261b in the front-rear direction. A defroster opening 213 is associated with the opening 261 a in the first row from the front of the mode switching damper 260. Further, the vent opening 212 is associated with the openings 261b in the second and third rows from the front of the mode switching damper 260. Furthermore, a foot opening 214 is associated with the opening 261 a in the fourth row from the front of the mode switching damper 260.

  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 first 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 218 side. Each air mix damper unit 250a of the second air mix damper 250 is set in a state in which all or most of the openings 256a of the frame-like member 256 are closed by the film-like member 251.
In the vent mode, the mode switching damper 260 opens the vent opening 212 and closes the defroster opening 213 and the foot opening 214.
As a result, the air passing through the inflow air ventilation path 215 and passing through the cooling heat exchanger 220 flows through the outflow air ventilation path 216 through the vent opening 212 as shown in FIG. The air is blown out from the outlet 2 and the side vent outlet 3 into the vehicle interior.

The foot mode is mainly set when the necessary blow-off temperature is high. For this reason, the first 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 217 side. Each air mix damper unit 250a of the second air mix damper 250 is set in a state in which all or most of the openings 256a of the frame-like member 256 are opened by the film-like member 251.
In the foot mode, the vent opening 212 and the defroster opening 213 are closed by the mode switching damper 260 and the foot opening 214 is opened.
As a result, the air passing through the inflow air ventilation path 215 and passing through the cooling heat exchanger 220 flows through the outflow air ventilation path 216 through the foot opening 214 as shown in FIG. 4 is blown into the passenger compartment.

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 first air mix damper 240 is set to 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 217 and the cooling air bypass ventilation path 218. In addition, each air mix damper unit 250 a of the second air mix damper 250 is set in a state in which a part or most of the opening 256 a of the frame-like member 256 is opened by the film-like member 251.
In the bi-level mode, the mode switching damper 260 opens the front side in the front-rear direction of the vent opening 212 and the foot opening 214, and closes the rear side in the front-rear direction of the vent opening 212 and the defroster opening 213.
As a result, the air passing through the inflow air ventilation path 215 and passing through the cooling heat exchanger 220 flows through the outflow air ventilation path 216 and flows out of the vent opening 212 and the foot opening 214 as shown in FIG. The center vent air outlet 2, the side vent air outlet 3, and the foot air outlet 4 are blown into the vehicle interior.

The defroster mode is set when the windshield and the side glass are fogged. For this reason, the first 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 217 side. Each air mix damper unit 250a of the second air mix damper 250 is set in a state in which all or most of the openings 256a of the frame-like member 256 are opened by the film-like member 251.
In the defroster mode, the mode switching damper 260 closes the vent opening 212 and the foot opening 214 and opens the defroster opening 213.
As a result, the air passing through the inflow air ventilation path 215 and passing through the cooling heat exchanger 220 flows through the outflow air ventilation path 216 through the defroster opening 213 as shown in FIG. 5 is blown into the passenger compartment.

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 first 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 217 side. In addition, each air mix damper unit 250 a of the second air mix damper 250 is set in a state where the opening 256 a of the frame member 256 is opened by the film member 251.
In the differential foot mode, the vent opening 212 is closed by the mode switching damper 260 and the foot opening 214 and the defroster opening 213 are opened.
As a result, the air passing through the inflow air ventilation path 215 and passing through the cooling heat exchanger 220 flows through the outflow air ventilation path 216 and flows out from the defroster opening 213 and the foot opening 214 as shown in FIG. The air is blown out from the foot outlet 4 and the defroster outlet 5 into the vehicle interior.

  In each air mix damper unit 250a of the second air mix damper 250 and each switching damper unit 260a of the mode switching damper 260, the driving force is the first in the opening / closing operation of the openings 256a, 266a, 266b of the frame-like members 256, 266. It is transmitted to one of the first winding shafts 252 and 262 and the second winding shafts 253 and 263. The driving force transmitted to one of the first winding shafts 252 and 262 and the second winding shafts 253 and 263 is transmitted through the power transmission mechanisms 255 and 265 to the first winding shafts 252 and 262 and the second winding shaft. Since one is rotated in the direction in which the film-like members 251 and 261 are wound up, the other is rotated in the direction in which the film-like members 251 and 261 are fed out. Therefore, during the opening / closing operation of the openings 256a, 266a, 266b of the frame-like members 256, 266, the film-like members 251, 261 are always sent from one to the other while receiving a constant tension.

Thus, according to the vehicle air conditioner of the present embodiment, the air mix damper unit 250a of the second air mix damper 250 and the switching damper unit 260a of the mode switching damper 260 have the outflow air ventilation path 216 and the heated air ventilation. Flexible membrane members 251 and 261 provided with openings 251a and 261a through which air flowing through the passage 217 can pass, and a first winding shaft 252 that can wind up the membrane members 251 and 261 from one end side. , 262, second winding shafts 253, 263 capable of winding the film-like members 251, 261 from the other end side, and the first winding shafts 252, 262 and the second winding by winding the film-like member 251 Guide shafts 254 and 264 for guiding from one of the shafts 253 and 263 to the other, and from one of the first winding shafts 252 and 262 and the second winding shafts 253 and 263 to the other Is provided so that power is transmitted to the first and second winding shafts 252 and 262 and the second winding shafts 253 and 263, and the other is formed into a film-like shape by rotating the film-like members 251 and 261 in the winding direction. Power transmission mechanisms 255 and 265 for rotating the members 251 and 261 in the feeding direction.
Accordingly, one of the first winding shafts 252 and 262 and the second winding shafts 253 and 263 is rotated in the direction of winding the film-like members 251 and 261 without using an urging means, and at the same time, the other is taken as a film-like member. Since it is possible to rotate in the direction in which 251 and 261 are drawn out, the film-like members 251 and 261 can be moved without using a complicated mechanism, and the manufacturing cost can be reduced.

Further, the first winding shafts 252 and 262 and the second winding shafts 253 and 263 of the air mix damper unit 250a and the switching damper unit 260a are disposed at positions adjacent to each other, and the first winding shafts 252 and 262 The film-like members 251 and 261 are placed on the first winding shafts 252 and 262 and the second winding shaft at positions separated from the two winding shafts 253 and 263 in the direction crossing the outflow air ventilation path 216 and the heated air ventilation path 217. Guide shafts 254 and 264 are provided for guiding from one of 253 and 263 to the other, and power transmission mechanisms 255 and 265 are provided on the first winding shafts 252 and 262 and the second winding shafts 253 and 263, respectively. The gears 255a, 255b, 265a, and 265b that directly mesh with each other. Thus, the power transmission mechanisms 255 and 265 have a simple structure. Therefore, it is possible to reduce the manufacturing cost.

The air mix damper unit 250a and the switching damper unit 260a include film-like members 251 and 261, first winding shafts 252 and 262, second winding shafts 253 and 263, power transmission mechanisms 255 and 265, and guide shafts 254. H.264 is attached to frame-like members 256 and 266 that are detachably provided on the case 210, and is configured integrally.
Thereby, since the air mix damper unit 250a and the switching damper unit 260a can be attached to and detached from the case 210, the assembly becomes easy and the manufacturing cost can be reduced. Further, maintenance such as replacement of parts constituting the air mix damper unit 250a and the switching damper unit 260a is facilitated.

Further, the case 210 is provided with a plurality of openings 212, 213, and 214 for allowing the air supplied to the passenger compartment to flow out. In the case 210, a plurality of integrally configured switching damper units 260a are connected. Thus, the openings 212, 213, and 214 that allow air to flow out from the plurality of openings 212, 213, and 214 can be switched.
This makes it possible to switch the openings 212, 213, and 214 through which air flows out by combining the switching damper unit 260a in accordance with the size and number of the openings 212, 213, and 214. Therefore, various types of vehicle air It becomes possible to apply to a harmony device.

The guide shafts 254 and 264 are provided with a tension adjusting mechanism for adjusting the tension of the film members 251 and 261 between the first winding shafts 252 and 262 and the second winding shafts 253 and 263. Yes.
Thereby, even when the film-like members 251 and 261 of the air mix damper unit 250a and the switching damper unit 260a extend, the tension of the film-like members 251 and 261 can be adjusted, so that the air mix damper unit 250a and the switch The damper unit 260a can be used for a long time.

The tension adjusting mechanism is configured by allowing the guide shafts 254 and 264 to rotate around the axis and restricting the rotation at an arbitrary position, and forming the guide shafts 254 and 264 in an elliptical cross section. The
Thereby, since the tension adjusting mechanism can be configured with a simple structure, it is possible to reduce the manufacturing cost.

In the above-described embodiment, the first winding shafts 252 and 262 and the second winding shafts 253 and 263 are provided so that power is transmitted directly from one to the other. As power transmission mechanisms 255 and 265 that rotate one of the second take-up shafts 253 and 263 in the take-up direction of the film-like members 251 and 261 by the force of turning the other in the take-out direction of the film-like members 251 and 261, Although gears 255a, 255b, 265a, and 265b provided on the winding shafts 252 and 262 and the second winding shafts 253 and 263 and meshing with each other are shown, the present invention is not limited to this.
Rotating one of the first winding shafts 252 and 262 and the second winding shafts 253 and 263 in the winding direction of the film members 251 and 261 to rotate the other in the feeding direction of the film members 251 and 261 For example, a first gear is provided on the first take-up shafts 252 and 262, a second gear is provided on the second take-up shafts 253 and 263, and the first and second gears are provided between the first and second gears. By interposing one or more gears, the first winding shafts 252 and 262 may be interlocked with the second winding shafts 253 and 263.
Further, pulleys are provided on the first winding shafts 252 and 262 and the second winding shafts 253 and 263, respectively, and endless belts are wound around and connected to each other so as to be connected to the first winding shafts 252 and 262. The two winding shafts 253 and 263 may be interlocked.

In the embodiment, the plurality of air mix damper units 250a and the plurality of switching damper units 260a are arranged in the width direction, and the air mix damper unit 250a and the switching damper unit 260a arranged in the width direction are interlocked. Although shown, it is not limited to this.
For example, the air passage is divided into left and right by a partition member or the like in the center in the width direction in the case 210, and the air mix damper unit 250a and the switching damper unit 260a arranged in the width direction can be driven respectively, thereby It is possible to blow out the air adjusted to a different temperature and humidity for each seat.

  In the above-described embodiment, the mode switching damper 260 is configured by the four switching damper units 260a. However, the present invention is not limited to this. An arbitrary number of switching damper units 260a may be combined depending on the size of the ventilation path and the size of the switching damper unit 260a.

  2 ... Center vent outlet, 3 ... Side vent outlet, 4 ... Foot outlet, 200 ... Air conditioning unit, 210 ... Case, 212 ... Vent opening, 213 ... Defroster opening, 214 ... Foot opening, 250 ... Second air mix Damper, 250a ... Air mix damper unit, 251 ... Membrane member, 251a ... Opening, 252 ... First winding shaft, 253 ... Second winding shaft, 254 ... Guide shaft, 255 ... Power transmission mechanism, 255a, 255b ... Gear: 256: Frame member, 260: Mode switching damper, 260a: Switching damper unit, 261: Film member, 261a: Opening, 262: First winding shaft, 263: Second winding shaft, 264: Guide shaft 265 ... Power transmission mechanism, 265a, 265b ... gear, 266 ... frame-like member.

Claims (5)

A vehicle air conditioner comprising: a case provided with an air passage inside; and a flow rate adjustment damper provided to open and close the air passage and capable of adjusting a flow rate of air flowing through the air passage,
The flow adjustment damper is
A flexible membrane-like member provided with an opening through which air flowing through the ventilation path can pass;
A first winding shaft capable of winding the membrane member from one end side;
A second winding shaft capable of winding the membrane member from the other end side;
A guide shaft that winds the film-like member and guides it from one of the first winding shaft and the second winding shaft;
The first winding shaft and the second winding shaft are provided so that power is directly transmitted from one to the other, and one of the first winding shaft and the second winding shaft is set in the winding direction of the film member. A power transmission mechanism that rotates the other in the feeding direction of the membrane member by a rotating force ;
The first winding shaft and the second winding shaft are arranged at positions adjacent to each other;
The guide shaft is provided at a position separated from the first winding shaft and the second winding shaft in a direction crossing the ventilation path,
The power transmission mechanism is a gear that is provided on each of the first winding shaft and the second winding shaft and that directly meshes with each other . The flow rate adjusting damper is integrally configured by attaching the film-like member, the first winding shaft, the second winding shaft, the power transmission mechanism, and the guide shaft to a frame-like member that is detachably provided on the case. The vehicle air conditioner according to claim 1 . The case is provided with a plurality of openings for allowing the air supplied into the passenger compartment to flow out,
The vehicle air conditioner according to claim 2 , wherein a plurality of integrally configured flow rate adjustment dampers are connected in the case so that the openings through which air flows out can be switched from the plurality of openings. . A vehicle air conditioner comprising: a case provided with an air passage inside; and a flow rate adjustment damper provided to open and close the air passage and capable of adjusting a flow rate of air flowing through the air passage,
The flow adjustment damper is
A flexible membrane-like member provided with an opening through which air flowing through the ventilation path can pass;
A first winding shaft capable of winding the membrane member from one end side;
A second winding shaft capable of winding the membrane member from the other end side;
A guide shaft that winds the film-like member and guides it from one of the first winding shaft and the second winding shaft;
The first winding shaft and the second winding shaft are provided so that power is directly transmitted from one to the other, and one of the first winding shaft and the second winding shaft is set in the winding direction of the film member. A power transmission mechanism that rotates the other in the feeding direction of the membrane member by a rotating force;
The guide shaft, the film-like member car dual air conditioner you characterized in that tension adjusting mechanism is provided for adjusting the tension of between Volume 1 shaft and the second winding shaft . The tension adjusting mechanism is configured by allowing the guide shaft to rotate about the axis and restricting rotation at an arbitrary position, and forming the guide shaft in an elliptical cross section. The vehicle air conditioner according to claim 4 .

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