JP2009137407A - Vehicular air-conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular air-conditioner having an air-conditioning unit penetrated by a steering member which is capable of interlocking an air-mix door and a door for a duct in the air-conditioning unit at low manufacturing cost without increasing the weight, and arranging an interlocking means in a small space. <P>SOLUTION: A first unit 11 comprises a first driving power transmitting member 28 which is provided on a side surface of the first unit 11 above an interference avoiding space 15 having a steering member 9 and a second unit 13 arranged therein, and moved synchronously with an air-mix door 49, a second driving power transmitting member 41 which is provided on the side surface of the first unit 11 below the interference avoiding space 15 and moved synchronously with a door 94 for duct, and a control cable 74 which is connected to the first and second driving power transmitting members 28, 41 while the steering member 9 is installed in the interference avoiding space 15, and arranged on the side surfaces of the first and second units 11, 13. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vehicle air conditioner, and more particularly to a vehicle air conditioner that supplies temperature-controlled air to a front seat and supplies temperature-controlled air to a rear seat.

  Conventionally, an air conditioning unit in which hot air heated by a heat exchanger for heating and cold air cooled by a cooling heat exchanger pass through the interior, and at least one of cold air and hot air extending from the air conditioning unit In a vehicle air conditioner including a rear seat air conditioning duct to which air is supplied, a front seat door that controls supply of temperature-controlled air to the front seat and a temperature control to the rear seat are provided inside the air conditioning unit. A rear seat door that controls the supply of air is provided.

  In such a vehicle air conditioner, there is known one in which a front seat door and a rear seat door are operated by separate actuator motors, respectively (Patent Document 1).

  Further, there is known a structure in which a front seat door and a rear seat door are connected by a link mechanism and driven by a common actuator motor. The specific structure will be described in detail with reference to FIGS. FIG. 9 shows the inside of the air conditioning unit 200, and FIG. 10 shows the side of the air conditioning unit 200 shown in FIG. In the air conditioning unit 200, the air X heated by the heater core 203 and the air cooled by the evaporator 204 in the air mix unit 201 provided on the upper side of the air conditioning unit 200 and the air mix unit 202 provided on the lower side. Y is mixed. Air-conditioned air generated by the upper air mix unit 201 is supplied to the front part of the passenger compartment through a duct (not shown) such as a defroster duct, and the air-conditioned air generated by the lower air mix unit 202 is supplied to the air-conditioning unit. It is supplied to the rear seat side of the passenger compartment through a rear seat air-conditioning duct (not shown) connected to the lower portion of 200. The upper air mix unit 201 is provided with a front seat door 205 that adjusts the amount of cool air flowing into the air mix unit 201 and the amount of hot air. The lower air mix unit 202 includes A rear seat door 206 is provided for adjusting the amount of cold air flowing into the mixing unit 202 and the amount of hot air. As shown in FIG. 10, a link mechanism 207 that links the two doors 205 and 206 is provided on the side surface of the air conditioning unit 200. The link mechanism 207 includes a fan-shaped gear 209 to which power is transmitted to the front seat door 205 to which the support shaft 208 of the front seat door 205 is attached and a support shaft 210 to the rear seat door 206 to which the support shaft 210 is attached. An arm 211 that transmits power to 206 and a gear mechanism 212 that connects the sector gear 209 and the arm 211 are configured.

In recent years, as a new vehicle layout, there is a vehicle in which steering members extend in the vehicle width direction in an instrument panel. In such a vehicle, in order for the steering member to pass through the air conditioning unit, the air conditioning unit is constituted by two units connected to each other, and the steering member is passed through an opening provided between the two units. Therefore, the surroundings of the steering member are used as a space for the air conditioning unit (Patent Document 2).
JP-A-63-312220 JP 2007-245772 A

  By the way, in the air conditioning unit disclosed in Patent Document 1, an actuator motor is provided for each front seat door and rear seat door to drive the front seat door and the rear seat door. The manufacturing cost of the vehicle increases, and the weight of the vehicle air conditioner increases.

  Further, in the air conditioning unit that is penetrated by the steering member, as shown in FIG. 10, when the front seat door and the rear seat door are connected by the link mechanism, the mounting locus of the steering member should be avoided. It is necessary to arrange a link mechanism. However, since the front seat door is arranged at the upper part of the air conditioning unit, the rear seat door is arranged at the lower part of the air conditioning unit, so that the link mechanism becomes large. Therefore, in the air conditioning unit that is penetrated by the steering member, it may be difficult to avoid the link mechanism from the steering member due to vehicle space restrictions, and the link mechanism cannot be installed.

The present invention has been made in view of such points, and the object of the present invention is as follows.
The air conditioning unit includes a rear seat air conditioning duct connected to the air conditioning unit, and the air conditioning unit connects a first unit and a second unit that are arranged so as to sandwich a steering member extending in the vehicle width direction. An air mix door that adjusts the amount of cold air and hot air supplied to the front part of the passenger compartment, and at least one of cold air and hot air supplied to the rear seat air conditioning duct In a vehicle air conditioner provided with a duct door for adjusting the amount of air, the air mix door and the duct door can be interlocked with each other at an inexpensive manufacturing cost and without increasing the weight. An object of the present invention is to provide a vehicle air conditioner in which means for disposing can be arranged in a small space.

  The invention of claim 1 includes an air conditioning unit in which warm air heated by a heating heat exchanger and cold air cooled by a cooling heat exchanger pass through the interior, and extends from the air conditioning unit, the cold air and A vehicle air conditioner comprising a rear seat air conditioning duct to which at least one of the warm air is supplied, wherein the air conditioning unit opens toward the rear of the vehicle and interferes with a steering member extending in the vehicle width direction. A first unit in which the steering member can be disposed in the interference avoidance space from the opening, and the interference in a state where the steering member is installed in the interference avoidance space. The second unit is inserted into the avoidance space and connected to the first unit, and the first unit is an amount of the cold air and the hot air supplied to the front part of the passenger compartment. An air mix door to be adjusted, a first driving force transmission member that is provided on a side surface of the first unit above the interference avoidance space and that moves in synchronization with the air mix door, and is supplied to the air conditioning duct for the rear seat A duct door for adjusting the amount of at least one of cold air and warm air; a second driving force transmission member that is provided on a side surface of the first unit below the interference avoidance space and moves in synchronization with the duct door; And the steering member is connected to the first driving force transmission member and the second driving force transmission member in a state where the steering member is installed in the interference avoidance space, It has a door interlocking control cable arranged on the side.

  According to this configuration, since the first driving force transmission member and the second driving force transmission member are connected by the control cable, the power of the first driving force transmission member is transmitted via the control cable. It is transmitted to the second driving force transmission member. Thus, by providing drive means such as a motor for operating one of the air mix door and the duct door, the other can be operated in conjunction with the one. For this reason, since it is not necessary to provide driving means such as the motor for the other, the manufacturing cost of the vehicle air conditioner can be kept low, and the weight of the vehicle air conditioner does not increase. Further, since a control cable is used as the interlocking means for interlocking the air mix door and the duct door, the space required for arranging the interlocking means becomes small.

  Further, the control cable is disposed on a side surface of the second unit inserted into the interference avoidance space when connected to the first driving force transmission member and the second driving force transmission member. Therefore, it passes through the side of the interference avoidance space. For this reason, when the control cable is connected to the first driving force transmission member and the second driving force transmission member when the steering member extending in the vehicle width direction is installed in the interference avoidance space, The control cable can be an obstacle. However, since the control cable is connected to the first driving force transmission member and the second driving force transmission member in a state where the steering member is installed in the interference avoidance space, the steering cable It does not become an obstacle to installing the member in the interference space.

  In particular, even if the control cable is arranged through the side surface of the second unit inserted into the interference avoidance space, the control cable does not become an obstacle when the steering member is installed in the interference space. The degree of freedom in layout for installing cables is greatly increased. Furthermore, since the first driving force transmission member and the second driving force transmission member can be connected without greatly bending the control cable, the driving force transmission by the control cable becomes smooth, and for air mix doors and ducts. Because the door can be driven with a small force, it is easy to operate.

  In addition, since the control cable is disposed on the side surfaces of the first unit and the second unit, the control cable is connected to the first drive when the second unit is inserted into the interference space. Even if it is connected to the force transmission member and the second driving force transmission member, the second unit can be inserted into the interference space without contacting the control cable. For this reason, the control cable does not become an obstacle.

  According to a second aspect of the present invention, in the first aspect, the control cable is connected to the first driving force transmission member of the air mix door in the state where the one end side of the control cable is connected to the first unit. Locking means for locking the other end of the control cable so as not to hang down to the side of the avoidance space is provided.

  According to this configuration, in a state where the other end side of the control cable is locked to the locking means, the control cable does not hang down to the side of the interference avoidance space. For this reason, when the steering member is installed in the interference avoidance space, the other end of the control cable is locked to the locking means, so that the steering member can be avoided without contacting the control cable. Can be placed in space. Thereby, since the control cable does not become an obstacle, the steering member can be smoothly installed in the interference avoidance space.

  A third aspect of the present invention is the structure according to the first or second aspect, wherein the control cable is disposed on the side surface of the second unit and passes through the vehicle rear side of the steering member.

  According to this configuration, the first driving force transmission member and the second driving force transmission member can be connected without largely bending the control cable or substantially linearly. As a result, since the driving force can be smoothly transmitted between the first driving force transmission member and the second driving force transmission member via the control cable, the air mix door and the duct door can be moved with a small force. It can be driven and has excellent operability.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the control cable extends outside from an end portion of the outer cable passing through the cylindrical outer cable and the outer cable. An inner cable, one end side of the inner cable is connected to the first driving force transmission member, and the other end side of the inner cable is connected to the second driving force transmission member, whereby the control cable Is connected to the first driving force transmission member and the second driving force transmission member, and one end portion of the outer cable is fixed in the vicinity of the first driving force transmission member, on the side surface of the first unit A fixing tool for fixing the other end of the outer cable is provided in the vicinity of the second driving force transmission member, and the fixing part is configured to be connected to the outer cable. A support for supporting the other end of the cable, and a stop for stopping the other end of the outer cable on the support.

  According to this configuration, the amount of slackness of the outer cable can be adjusted by changing the position of the outer cable that is stopped by the stopper. Accordingly, since the tension of the inner cable can be adjusted, the play of the inner cable is eliminated, and the power transmission between the first driving force transmission member and the second driving force transmission member is eliminated. Delay can be prevented.

  In addition, when the position of the outer cable stopped by the stopper is changed, the length of the inner cable extending from the position of the stopper to the other end of the inner cable is changed. The position will also change. Then, the position of the duct door is also changed by moving the second driving force transmission member to connect the second driving force transmission member to the other end of the inner cable whose position has been changed. From the above, by changing the position of the outer cable that is stopped by the stopper, the control cable is connected to the first driving force transmission member and the second driving force transmission member with the duct door adjusted to a desired position. Can be connected to. Thereby, the air mix door and the duct door can be interlocked in a state where the position of the duct door is adjusted according to the position of the air mix door.

  According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the second unit constitutes a part of a warm air passage provided above the heat exchanger for heating. And

  According to this configuration, since the second unit can be formed independently of the first unit, the degree of freedom in designing the hot air passage is increased. Moreover, it is easy to provide an auxiliary heater in the second unit.

  According to the first aspect of the present invention, by providing one driving means, the air mix door and the duct door can be operated in conjunction with each other. As a result, the manufacturing cost of the vehicle air conditioner can be kept low, and the weight of the vehicle air conditioner does not increase. Further, since the control cable is used as the interlocking means for interlocking the air mix door and the duct door, the space required for arranging the interlocking means becomes small.

  Further, the control cable does not become an obstacle when the steering member is installed in the interference space. For this reason, the steering member can be smoothly installed in the interference space.

  In particular, the degree of freedom of layout for installing the control cable is greatly increased, and the first driving force transmission member and the second driving force transmission member can be connected without further bending the control cable. The transmission of the driving force is smooth, the air mix door and the duct door can be driven with a small force, and the operability is excellent.

  The control cable does not become an obstacle when the second unit is inserted into the interference space. For this reason, the second unit can be smoothly connected to the first unit.

  According to the invention of claim 2, by locking the other end side of the control cable to the locking means, the control cable does not become an obstacle in arranging the steering member in the interference avoidance space. The steering member can be installed smoothly in the interference avoidance space.

  According to the invention of claim 3, the first driving force transmitting member and the second driving force transmitting member can be connected without largely bending the control cable or substantially linearly. As a result, since the driving force is smoothly transmitted between the first driving force transmission member and the second driving force transmission member via the control cable, the air mix door and the duct door can be driven with a small force. Excellent operability.

  According to invention of Claim 4, the delay of the power transmission between the said 1st drive means and the said 2nd drive means can be prevented by changing the position of the outer cable stopped by the said stopper. .

  In addition, the control cable is connected to the first driving force transmission member and the second driving force transmission member in a state where the duct door is adjusted to a desired position by changing the position of the outer cable stopped by the stopper. I can do it. Thereby, the air mix door and the duct door can be interlocked in a state where the position of the duct door is adjusted according to the position of the air mix door.

  According to the invention of claim 5, since the second unit can be molded independently of the first unit, the design freedom of the hot air passage is greatly expanded. Moreover, it is easy to provide an auxiliary heater in the second unit.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following embodiments are merely preferred examples in nature, and are not intended to limit the scope of the present invention, its applications, and uses. In the description of the embodiments, for the convenience of explanation, “front” refers to the front side of the vehicle, “rear” refers to the rear side of the vehicle, “left” refers to the left side of the vehicle, and “Right” represents the right side of the vehicle.

  FIG. 1 is a side view showing a vehicle air conditioner 1 according to an embodiment of the present invention. The vehicle air conditioner 1 includes an air conditioning unit 3 disposed inside an instrument panel located in the front portion of the vehicle interior, and a rear seat air conditioning duct 5 extending from the air conditioning unit 3. . The rear seat air conditioning duct 5 passes through the floor console extending toward the rear side of the vehicle between the passenger seat and the driver's seat, and blows out the air in the rear seat air conditioning duct 5 to the knees of the rear seat passengers. ing.

  In the instrument panel in which the air conditioning unit 3 is disposed, the steering member 9 (see FIG. 2) as a vehicle body reinforcing member extends in the vehicle width direction, and in the state in which the air conditioning unit 3 is disposed in the instrument panel, The steering member 9 is in a state of penetrating the air conditioning unit 3.

  FIG. 2 is a side view of the air conditioning unit 3, and FIG. 3 is a side view showing a state in which the air conditioning unit 3 is disassembled.

  The air conditioning unit 3 is configured by connecting the first unit 11 and the second unit 13 to each other.

  As shown in FIG. 3, the first unit 11 has an interference avoidance space 15 that opens toward the rear of the vehicle. The steering member 9 is installed at the front end of the interference avoidance space 15. The first unit 11 includes an upper portion 17 that extends in the front-rear direction above the interference avoidance space 15 and a lower portion 19 that extends in the front-rear direction below the interference avoidance space 15.

  The second unit 13 includes a duct assembly main body 75 and a casing 77 attached to the duct assembly main body 75. The second unit 13 is connected to the first unit 11 by inserting the duct assembly main body 75 behind the steering member 9 in the interference avoidance space 15. By connecting the second unit 13 to the first unit 11 in this way, as shown in FIG. 2, the steering member 9 is sandwiched between the second unit 13 and the first unit 11 and penetrates the air conditioning unit 3. It will be in the state. Further, as shown in FIG. 3, the front end 21 of the recess of the first unit and the front end 23 of the duct assembly main body 75 each have a semicircular shape corresponding to the outer edge of the steering member 9, and half of the outer edge of the steering member 9 It comes to touch.

  Next, the inside of the air conditioning unit 3 will be described with reference to FIG.

  Inside the first unit 11, there are a fan housing 25 that forms a cylindrical space, an air feed passage 27 that extends downward from the fan housing 25, and a cold air passage 29 that branches vertically from the rear of the air feed passage 27, 31, the hot air passage 33 extending upward from the rear portion of the lower cold air passage 31, the connection passage 35 extending rearward from the rear portion of the lower cold air passage 31, and the second unit 13 above the hot air passage 33. And an air mix chamber 39 that extends upward from a position where the hot air passage 37 and the cold air passage 29 merge.

  Among these passages, the warm air passage 37 and the air mix chamber 39 are provided in the upper portion 17 of the first unit 11 and are located in the upper part of the air conditioning unit 3. Further, the cold air passage 31, the hot air passage 33, and the connection passage 35 are provided in the lower portion 19 of the first unit 11. The connection passage 35 is located at the rear end of the lower portion 19 and is connected to the rear seat air conditioning duct 5 (see FIG. 1).

  A blower fan 47 is accommodated in the fan housing 25 with its axis centered in the vehicle width direction.

  An evaporator (cooling heat exchanger) 57 is disposed between the air feed passage 27 and the cold air passages 29 and 31 with its air inflow surface vertical and facing forward. An air filter 59 is disposed on the front side of the evaporator 57.

  A heater core 62 is accommodated in a portion between the lower cold air passage 31 and the hot air passage 33 with its air inflow surface substantially horizontal and downward.

  An air mix door 49 is disposed below the air mix chamber 39. The air mix door 49 has two blades connected in a "<" shape, and the central portion of the air mix door 49 is supported by the first shaft 11 by a support shaft 50 extending horizontally in the vehicle width direction above the partition wall. It is rotatably supported by. A lower portion of the air mix chamber 39 is partitioned by a partition wall 52 into a cold air passage 29 side and a hot air passage 37 side. A support shaft 50 is supported on the upper end of the partition wall 52. Each of the opening 38 positioned at the upper end of the cold air passage 29 and the opening 40 positioned at the upper end of the hot air passage 37 is opened and closed by each blade of the air mix door 49. The air mix chamber 39 branches into a front passage 61 having a defrost outlet 65, a rear passage 63 having a vent outlet 67, and a branch passage 73 having a tip opening 69 and a side opening 71. In the passages 61, 63, and 73, switching doors 51, 53, and 55 are arranged to open and close the passage openings, respectively.

  Here, the instrument panel in which the air conditioning unit 3 is disposed is provided with a defroster that opens toward the front window of the vehicle and a ventilator that opens toward the upper side of the front seat occupant. The air conditioning unit 3 is provided with a foot opening that opens toward the feet of the front seat occupant. The defrost outlet 65 is connected to the defroster duct, the vent outlet 67 is connected to the ventilator, and the side opening 71 of the branch passage 73 is connected to the foot opening under the front seat occupant foot. Further, the vehicle provided with the vehicle air conditioner 1 of the present embodiment is provided with a duct extending to the rear seat side along the floor tunnel and having a rear end opened to the feet of the rear seat occupant. The front end opening 69 of the branch passage 73 is connected to the front end (not shown).

  Inside the duct assembly main body 75 in the second unit 13, a hot air passage 79 that connects the hot air passage 33 and the hot air passage 37 is formed. An auxiliary heater 81 is disposed in the warm air passage 79.

  The casing 77 in the second unit 13 includes a lid portion 85 attached to the duct assembly main body 75 so as to cover the hot air outlet 83 and a cylindrical portion 87 extending downward from the lid portion 85. The internal space 88 of the cylindrical portion 87 communicates with a space 90 between the inner surface of the lid portion 85 and the outer surface of the duct assembly main body 75, and the warm air passage 79 is connected by the space 90 and the cylindrical portion internal space 88. A hot air passage 92 for the rear seat connected to the passage 35 is configured.

  A duct door 94 is provided at the upstream end of the connection passage 35 in the first unit 11 to adjust the amount of cold air flowing from the cold air passage 31 and the amount of hot air flowing from the rear seat hot air passage 92. Yes. The duct door 94 is rotatably supported by the first unit 11 at one end side of one blade plate by a support shaft 98 extending horizontally in the vehicle width direction, and communicates the cold air passage 31 to the connection passage 35. Of the inlet 95 (corresponding to the first opening) and the hot air inlet 45, both inlets 95, 45 are arranged such that the opening of one inlet becomes smaller as the opening of one inlet becomes larger. The opening is adjusted.

  Next, a mechanism for transmitting power to the air mix door 49 and the duct door 94 will be described with reference to FIGS.

  An actuator motor 26 and a first driving force transmission member 28 are provided on the side surface of the first unit 11 above the interference avoidance space 15. The first driving force transmission member 28 has a “<” shape, and a support shaft 50 of an air mix door 49 penetrating the side wall of the air conditioning unit 3 is attached to the center of the first driving force transmission member 28. In addition, a tooth portion is formed on one end side 30 of the first driving force transmission member 28, and the first driving force transmission member 28 is connected to the pinion of the actuator motor 26 by engaging the tooth portion with the pinion of the actuator motor 26. It rotates around the support shaft 50 with the operation. At this time, the air mix door 49 is operated by the rotation of the support shaft 50. Further, a protrusion 34 is formed on the other end side of the first driving force transmission member 28.

  A second driving force transmission member 41 is provided on the side surface of the first unit 11 below the interference avoidance space 15. The second driving force transmission member 41 will be described with reference to FIG.

  The second driving force transmission member 41 includes a lower layer plate 42, an upper layer plate 43, and a connecting plate 44. The lower layer plate 42 has a bifurcated shape, and is fixed to the side surface of the air conditioning unit 3 by passing the bolts through bolt holes 8 (one not shown) formed at the tip of each crotch portion 46.

  Further, the top 48 of the lower layer plate 42 is penetrated by the rotating shaft 18 that is rotatably attached to the side surface of the air conditioning unit 3. The upper layer plate 43 is a substantially triangular plate material stacked above the lower layer plate 42, and the rotation shaft 18 penetrating the lower layer plate 42 is attached to the center portion 54. A long hole 58 penetrating the upper layer plate 43 is formed in the corner portion 56 of the upper layer plate 43, and a protrusion 66 is formed in the corner portion 64. The connecting plate 44 is disposed at the same height as the lower layer plate 43, has an elongated shape, and has a protrusion 72 inserted into the long hole 58 at one end. A support shaft 98 of a duct door 94 penetrating the side wall of the air conditioning unit 3 is attached to the other end of the connecting plate 44.

  In the state where the second unit 13 is connected to the first unit 11 and the air conditioning unit 3 is assembled, as shown in FIG. 2, the first driving force transmission member 28 and the second driving force transmission member 41 are The two units 13 and the first unit 11 are connected by a control cable 74 disposed on the side surfaces. In the state before the second unit 13 and the first unit 11 are connected, the other end side 78 of the control cable 74 is not connected to the second driving force transmission member 41 as shown in FIG. It is locked to a hook 100 (see FIG. 6) described later.

  The control cable 74 includes a cylindrical outer cable 82 and an inner cable 84 that passes through the outer cable 82 and extends outward from both ends of the outer cable 82.

  A ring 89 is formed at one end of the inner cable 84, and the ring 89 is locked to the protrusion 34 of the first driving force transmission member 28. A ring 91 is also formed at the other end of the inner cable 84, and the ring 91 is locked to the protrusion 66 of the second driving force transmission member 41. As described above, the rings 89 and 91 are locked to the protrusions 34 and 66, whereby the control cable 74 is connected to the first driving force transmission member 28 and the second driving force transmission member 41.

  In the vicinity of the first driving force transmission member 28 on the side surface of the second unit 13, the fixture 12 that fixes the one end portion 93 of the outer cable 82 is provided. In addition, a fixing tool 14 for fixing the other end portion 96 of the outer cable 82 is provided in the vicinity of the second driving force transmission member 41 on the side surface of the second unit 13. Hereinafter, the fixtures 12 and 14 will be specifically described with reference to FIG. In addition, since the fixing tool 12 and the fixing tool 14 have the same structure, the fixing tool 14 is demonstrated and description of the fixing tool 12 is abbreviate | omitted.

  The fixing tool 14 includes a bracket 16 (supporting tool) and a ring member 6 (stopping tool).

  Bolt holes 20 are formed at both ends of the bracket 16, and the bracket 16 is fixed to the side surface of the air conditioning unit 3 by bolts that pass through the bolt holes 20. A groove 22 having a width larger than that of the outer cable 82 is formed between the two bolt holes 20, and the other end 96 of the outer cable 82 is disposed in the groove 22 so that the bracket 22 16 is supported. The ring member 6 has a U-shape, and the U-shaped leg portion is inserted between the outer surface of the outer cable 82 and the wall surface of the groove 22. The predetermined position is fixed to the bracket 16.

  In the air conditioning unit 3 having the above configuration, since the first driving force transmission member 28 and the second driving force transmission member 41 are connected by the control cable 74, the first driving force transmission is performed in accordance with the operation of the actuator motor 26. As the member 28 rotates, the support shaft 50 of the air mix door 49 rotates and the air mix door 49 operates. Further, as the first driving force transmission member 28 rotates, the inner cable 84 reciprocates in the longitudinal direction. With this reciprocation, the upper layer plate 43 of the second driving force transmission member 41 rotates on the rotation axis. Rotate around 18. As the upper layer plate 43 is rotated, the protrusion 72 of the connecting plate 44 slides in the longitudinal direction in the long hole 58 of the upper layer plate 43, and further, the connecting plate 44 is used for the duct. It pivots about a support shaft 98 of the door 94. As a result, the support shaft 98 of the duct door 94 rotates and the duct door 94 operates.

  According to this embodiment, since the power of the first driving force transmission member 28 is transmitted to the second driving force transmission member 41 via the control cable 74, the air motor mix is activated by operating the actuator motor 26. The duct door 94 can be operated in conjunction with the door 49.

  In particular, since the first driving force transmission member 28 and the second driving force transmission member 41 can be connected without greatly bending the control cable 74, the second driving force transmission from the first driving force transmission member 28 via the control cable 74 is possible. Since the driving force is smoothly transmitted to the member 41, the duct door 94 can be driven with a small force, and the operability of the duct door 94 is excellent. Further, the control cable 74 can be easily attached, and the length of the control cable 74 can be easily adjusted.

  Further, since it is not necessary to provide a driving means such as a motor on the duct door 94 side, the manufacturing cost of the vehicle air conditioner 1 can be kept low, and the weight of the vehicle air conditioner 1 does not increase.

  Further, since the control cable 74 is used as means for interlocking the air mix door 49 and the duct door 94, the space required for disposing the interlock means becomes small.

  Moreover, the amount of slackness of the outer cable 82 between the fixture 12 and the fixture 14 can be adjusted by changing the position of the outer cable 82 fixed to the bracket 16 by the ring member 6. Thereby, since the tension of the inner cable 84 can be adjusted, the play of the inner cable 84 is eliminated, and the power transmission between the first driving force transmission member 28 and the second driving force transmission member 41 is eliminated. Delay can be prevented.

  In addition, when the position of the outer cable 82 stopped by the ring member 6 is changed, the length of the inner cable that extends from the position of the ring member 6 to the ring 91 at the tip of the inner cable 84 is changed. The position of 91 also changes. The position of the duct door 94 is also changed by rotating the upper layer plate 43 and the connecting plate 44 so that the ring 91 whose position has been changed is engaged with the protrusion 66 of the second driving force transmission member 41. From the above, by changing the position of the outer cable 82 stopped by the bracket 16, the control cable 74 is adjusted to the first driving force transmission member 28 and the second driving in a state where the duct door 94 is adjusted to a desired position. It can be connected to the force transmission member 41. Thereby, the air mix door 49 and the duct door 94 can be interlocked in a state where the position of the duct door 94 is adjusted according to the position of the air mix door 49.

<Air flow in the air conditioning unit 3>
Next, the flow of air in the air conditioning unit 3 will be described with reference to FIG.

  In the air conditioning unit 3, the air sent from the fan housing 25 to the air feed passage 27 by the blower fan 47 passes through the air filter 59 and is removed, and further passes through the evaporator 57 to become cold air. This cold air branches and flows into the upper cold air passage 29 side and the lower cold air passage 31 side according to the distribution ratio of the air volume determined by the rotational position of the air mix door 49. Then, the cool air toward the cool air passage 31 on the lower side branches and flows into the connection passage 35 side and the heater core 62 side according to the distribution ratio of the air volume determined by the rotational position of the duct door 94. Then, the cool air directed toward the heater core 62 passes through the heater core 62 and becomes warm air and flows into the warm air passage 33, and then flows into the warm air passage 79 and is heated again by the auxiliary heater 81. . A part of the warm air heated by the auxiliary heater 81 flows into the air mix chamber 39 after passing through the warm air passage 37. The hot air flowing into the air mix chamber 39 merges with the cold air flowing into the air mix chamber 39 from the cold air passage 29. As a result, the air mix chamber 39 generates conditioned air at a required temperature. And this air-conditioning air branches and flows into the front side passage 61, the rear side passage 63, and the branch passage 73 according to the opening degree of each switching door 51,53,55. The air-conditioned air that has flowed into the front passage 61 passes through the defrost outlet 65 and is then blown out from the defroster of the instrument panel toward the front window. The air-conditioned air that has flowed into the rear passage 63 passes through the vent outlet 67 and is then blown out from the ventilator into the vehicle compartment. Of the air-conditioning air that has flowed into the branch passage 73, a part of the air-conditioning air passes through the side opening 71 and is then blown out from the ventilator under the front seat occupant's feet into the vehicle compartment. After passing through, the air flows into a duct extending rearward along the floor tunnel, and is blown out from the opening of the duct to the foot of the rear seat occupant.

  Further, of the warm air that has passed through the warm air passage 79 of the second unit 13, some warm air flows from the warm air outlet 83 into the rear seat warm air passage 92. Then, the warm air that has flowed into the rear-seat warm air passage 92 flows into the connection passage 35 from the warm air inlet 45. The hot air flowing into the connection passage 35 merges with the cold air flowing into the connection passage 35 from the lower cold air passage 31, and as a result, conditioned air having a required temperature is generated in the connection passage 35. The air-conditioned air flows into the rear seat air-conditioning duct 5 and then blows out from the rear seat air-conditioning duct 5 (see FIG. 1) toward the rear seat passenger's knee.

<How to install the air conditioning unit 3>
Next, a method for mounting the air conditioning unit 3 in the instrument panel will be described. Prior to the description of the mounting method, a problem that occurs when the air conditioning unit 3 is assembled with the control cable 74 connected to the first driving force transmission member 28 and the second driving force transmission member 41, and this problem Means provided to avoid the problem will be described.

  In a state where the control cable 74 is connected to the first driving force transmission member 28 and the second driving force transmission member 41, the control cable 74 passes through the side of the interference avoidance space 15. In this state, when the steering member 9 extending in the vehicle width direction is to be installed in the interference avoidance space 15, the control cable 74 hits the portion of the steering member 9 extending to the side of the interference avoidance space 15. The control cable 74 becomes an obstacle. Therefore, the first unit 11 is provided with a hook 100 (locking means) shown in FIG. 6 as a means for avoiding the above problem. The hook 100 includes a horizontal portion 101 joined in the vicinity of the upper edge of the interference avoidance space 15 on the side surface of the first unit 11 and a vertical portion 102 extending upward from the other end of the horizontal portion 101. As shown in FIG. 3, the hook 100 is used in a state in which one end portion 93 of the outer cable 82 is fixed to the fixing portion 12, and in this state, the other end portion 96 of the outer cable 82 is vertical. By being inserted between the portion 102 and the side surface of the first unit 11, the other end 96 of the outer cable 82 is locked by the hook 100, and as a result, the control cable 74 is moved to the side of the interference avoidance space 15. It will not sag.

  Next, a method for attaching the air conditioning unit 3 using the hook 100 described above will be described. When the air conditioning unit 3 is arranged in the instrument panel, the steering member 9 extends in the vehicle width direction in the instrument panel.

  First, the first unit 11 is placed in the instrument panel. At this time, as shown in FIG. 3, the ring 89 of the inner cable 84 is locked to the protrusion 34 of the first driving force transmission member 28 and one end 93 of the outer cable 82 is fixed to the fixture 12. Further, as shown in FIG. 7, the other end portion 96 of the outer cable 82 is locked to the hook 100. In this state, the first unit 11 is moved rearward (in the direction of arrow A) from the front side of the steering member 9, and the steering member 9 is inserted into the interference avoidance space 15.

  Next, the pipe body 36 constituting the tip of the connection passage 35 is fitted into the rear end of the rear seat air conditioning duct 5 (see FIG. 1), and the connection passage 35 is connected to the rear seat air conditioning duct 5.

  Next, the second unit 13 is assembled by integrally connecting the duct assembly main body 75 and the casing 77. At this time, a projection (not shown) formed on the outer wall surface of the duct assembly main body 75 is fitted into a groove (not shown) formed on the peripheral edge of the lid portion 85, whereby the duct assembly main body 75 and the casing are fitted. 77.

  Next, the second unit 13 is connected to the first unit 11. At this time, as shown in FIG. 8, the second unit 13 is moved forward (arrow B) from the rear side of the first unit 11, and the duct assembly main body 75 is inserted into the interference avoidance space 15. This operation is performed until the rear end of the duct assembly main body 75 comes into contact with the steering member 9, and with the completion of this operation, the steering member 9 is sandwiched between the second unit 13 and the first unit 11, and the air conditioning unit. 3, and the rear-seat warm air passage 92 and the connection passage 35 are connected to each other.

  Next, the other end 96 of the outer cable 82 is removed from the hook 100 and fixed to the fixture 14. At this time, the slack amount of the outer cable 82 between the fixing portion 12 and the fixing portion 14 is adjusted by stopping the predetermined position of the outer cable 82 on the bracket by the ring member 6.

  Next, the ring 91 of the inner cable 84 is locked to the protrusion 66 of the second driving force transmission member 41. As a result, as shown in FIG. 2, the first driving force transmission member 28 and the second driving force transmission member 41 are connected by the control cable 74. In this state, the control cable 74 The two units 13 and the first unit 11 are arranged on the side surfaces.

  Although the installation of the air conditioning unit 3 in the instrument panel is completed as described above, according to the present embodiment, the control cable 74 is connected to the first driving force with the steering member 9 installed in the interference avoidance space 15. The transmission member 28 and the second driving force transmission member 41 are connected. Therefore, the control cable 74 does not become an obstacle when the steering member 9 is installed in the interference avoidance space 15.

  Further, in a state where the other end portion 96 of the outer cable 82 is locked to the hook 100, the control cable 74 does not hang down to the side of the interference avoidance space 15. For this reason, when the steering member 9 is installed in the interference avoidance space 15, the other end 96 of the outer cable 82 is locked to the hook 100, so that the steering member 9 interferes without contacting the control cable 74. It can be arranged in the avoidance space 15. Thereby, since the control cable 74 does not become an obstacle, the steering member 9 can be smoothly installed in the interference avoidance space 15.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims.

  For example, the second unit 13 may be connected to the first unit 11 after the control cable 74 is connected to the second driving force transmission member 41. In this case, since the control cable 74 is disposed on the side surfaces of the second unit 13 and the first unit 11, the control cable 74 is an obstacle when the second unit 13 is inserted into the interference avoidance space 15. It will not be.

  Instead of the actuator motor 26, an actuator motor may be provided on the duct door 94 side. In this case, the second drive means 41 is provided with a tooth portion that meshes with the pinion of the actuator motor, and the tooth portion on one end side 30 of the first drive means 28 is omitted. In this way, since the power of the second drive means 41 is transmitted to the first drive means 28 via the control cable 74, the air mix door 49 can be operated in conjunction with the duct door 94. I can do it.

  Further, instead of the actuator motor, any one of the first drive means 28 and the second drive means 41 may be connected to a manually operated lever.

  Further, the rear seat warm air passage 92 in the second unit 13 may be omitted. In this case, only the cold air flows into the connection passage 35 and is blown out from the rear seat air conditioning duct 5 to the rear seat side. However, the control cable is adjusted with the air mix door 49 and the duct door 94 adjusted appropriately. 74 is connected to the first and second drive means 28 and 41, so that the air duct door 49 is rotated so that a large amount of hot air is supplied to the air mix chamber 39, so that the duct door becomes a cool air passage. The air mix door 49 and the duct door 94 can be interlocked so as to block communication between the connection passage 31 and the connection passage 35. Thereby, a vehicle interior can be maintained at desired temperature.

It is a side view which shows the vehicle air conditioner in embodiment of this invention. 3 is a side view of the air conditioning unit 3. FIG. It is a side view which shows the state which decomposed | disassembled the air conditioning unit. 3 is a cross-sectional view showing the inside of an air conditioning unit 3. FIG. It is a side view of the 2nd unit near the 2nd driving force transmission member. It is a perspective view which shows the hook formed in the 2nd unit. It is a side view which shows the process of installing a steering member in interference avoidance space. It is a side view which shows the process of connecting a 1st unit to a 2nd unit. It is sectional drawing which shows the inside of the conventional air conditioning unit. It is a side view of the air conditioning unit shown in FIG.

Explanation of symbols

1 Vehicle air conditioner,
3 Air conditioning unit,
5 Rear seat air conditioning duct,
6 Ring member (stopper),
9 Steering member,
11 First unit,
13 Second unit,
14 Fixing tool,
15 Interference avoidance space,
16 Bracket (support),
28 first driving force transmission member,
41 2nd driving force transmission member,
49 Airmix door,
57 evaporator (cooling heat exchanger),
62 Heater core (heat exchanger for heating),
74 Control cable,
80 hook (locking means),
82 Outer cable,
84 Inner cable,
94 Door for duct.

Claims (5)

An air conditioning unit in which the warm air heated by the heating heat exchanger and the cold air cooled by the cooling heat exchanger pass through the interior, and extends from the air conditioning unit, and at least one of the cold air and the warm air is A vehicle air conditioner comprising a rear seat air conditioning duct to be supplied,
The air conditioning unit has an interference avoidance space that opens toward the rear of the vehicle and avoids interference with a steering member extending in the vehicle width direction, and the steering member can be disposed in the interference avoidance space from the opening. A first unit, and a second unit inserted into the interference avoidance space and connected to the first unit in a state where the steering member is installed in the interference avoidance space,
The first unit is provided on a side surface of the first unit above the interference avoidance space, an air mix door for adjusting an amount of the cool air and the warm air supplied to a front part of a passenger compartment, and the air mix A first driving force transmission member that moves in synchronization with the door; a duct door that adjusts the amount of at least one of the cold air and the hot air supplied to the rear seat air conditioning duct; and the first under the interference avoidance space. A second driving force transmission member provided on a side surface of one unit and moving in synchronization with the duct door; and the first driving force transmission member and the first member in a state where the steering member is installed in the interference avoidance space. 2 It is connected to a driving force transmission member, and has a door interlocking control cable disposed on the side surfaces of the first unit and the second unit. Vehicle air-conditioning system to be.   In the first unit, the control cable is connected to the first driving force transmission member of the air mix door in a state where one end side of the control cable is connected to the side of the interference avoidance space. The vehicle air conditioner according to claim 1, further comprising a locking unit that locks the other end of the cable.   3. The vehicle air conditioner according to claim 1, wherein the control cable is disposed on a side surface of the second unit and passes through a vehicle rear side of the steering member. The control cable includes a cylindrical outer cable and an inner cable that passes through the outer cable and extends outward from the end of the outer cable.
One end side of the inner cable is connected to the first driving force transmission member, and the other end side of the inner cable is connected to the second driving force transmission member, so that the control cable is connected to the first driving force transmission member. Connected to the transmission member and the second driving force transmission member;
One end of the outer cable is fixed in the vicinity of the first driving force transmission member, and the other end of the outer cable is fixed in the vicinity of the second driving force transmission member on the side surface of the first unit. A fixture is provided,
The said fixing | fixed part is comprised from the support tool which supports the other end part of the said outer cable, and the stop which stops the other end part of the said outer cable to the said support part, The thru | or 3 characterized by the above-mentioned. The vehicle air conditioner according to any one of the above.   The vehicular air conditioner according to any one of claims 1 to 4, wherein the second unit constitutes a part of a hot air passage provided above the heat exchanger for heating. .

Images