JP2008183959A - Vehicular air-conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular air-conditioner capable of preventing the reduction of an overhead space of a ceiling as much as possible, and enhancing the air-conditioning comfortableness of a rear seat. <P>SOLUTION: A hot air passage 22 and a cold air passage 23 for air-conditioning use are integrated with a cross member 4 stretched between a roof frame 2 and a roof side rail constituting a body. An in-cabin outlet 25 is individually formed at a rear seat, and a mixing means for mixing hot air with cold air is provided at the in-cabin outlet 25. Thus, the air-conditioning comfortableness at the rear seat is enhanced. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle air conditioner for a second row and a third row which are rear seats in a passenger car having a three row seat such as a one-box car.

  In recent years, there has been an increase in vehicles such as one-box cars, in which two rows of rear seats are installed behind the driver's seat. For this reason, it is necessary to air-condition the rear seat, and an air-conditioning unit is arranged behind the vehicle, the cool air obtained from the air-conditioning unit is guided to the ceiling part through the duct, and the rear from the air outlet provided in the ceiling part Cold air was blown out toward the seat.

For example, in Patent Document 1, a duct 1 is piped along a roof side rail portion 2 which is a vehicle structure, and the duct 1 has a plurality of outlets 3 and 3. Cold air is blown out from the air outlets 3 and 3 toward each seat.
ACT 7-28709

Further, in Patent Document 2, a plurality of rows of seats are arranged in the front-rear direction of the passenger compartment, and a cooler unit 5 is disposed on the side of the rear seat 3 positioned behind the seat, and is derived from the cooler unit 5. The cooled cooling air is guided to the upper side of the vehicle body via the rising duct 29 along the pillar 9 located at the rearmost position, and the cooling air guided by the rising duct 29 is arranged on the lower surface of the roof panel 32. Is sent to the roof duct 33. Cooling air is blown out from the first air outlet and the second air outlet provided in the roof duct 33 to each rear seat.
JP-A-11-254947

Further, in Patent Document 3, from the air conditioning unit 10 for the rear seat, the left seat and right seat cool air blowing ducts 1 and 2 forming a cool air passage are extended toward the front of the vehicle. The cold air blowing ducts 1 and 2 for the left seat and the right seat distribute the cold air toward the head and chest of the occupants seated in the left and right seats, so that the guide panel portion and further the pillar portion of the vehicle are provided. It is arranged to the ceiling part. The second row cold air outlets 12 and 22 and the third row cold air outlets 13 and 23 are provided, respectively, and the cold air is blown toward each seat.
JP 2001-341518

  As described above, in Patent Document 1, the vehicle air conditioner duct is provided along the roof side rail portion of the ceiling side surface, and has a predetermined duct cross-sectional area even if it is to be reduced as much as possible. It is inevitable that it protrudes toward the passenger compartment. Further, in Patent Documents 2 and 3, since it is arranged under the roof panel of the ceiling, it is inevitable that it protrudes into the passenger compartment as in the above-mentioned Patent Document 1. That is, the inconvenience of reducing the overhead space cannot be avoided. Further, in the conventional examples (Patent Documents 1, 2, or 3), the temperature control of the blown air is uniquely determined in the air conditioner unit, and the temperature cannot be adjusted at the vehicle interior outlet.

  In view of the above, the present invention is designed to minimize the overhead space of the ceiling as much as possible. This cross member is used between the roof side rails of the roof frame constituting the body, and this cross is used. An object is to form a hot air passage and a cold air passage for air conditioning integrally with a member so as to minimize the reduction of overhead space and to improve the air conditioning comfort of the space in the rear seat.

  The vehicle air conditioner according to the present invention is in a roof side rail and a cross member constituting a roof frame of a vehicle body, and forms a hot air passage and a cold air passage for air conditioning integrally with the cross member, The vehicle interior air outlet connected to the hot air passage and the cold air passage has a mixing means for mixing hot air and cold air.

  Thereby, since the cold air passage and the hot air passage are integrally incorporated in the cross member which is a structure, the space that has not been used so far is used, and the ceiling space is not damaged. In addition, since the hot air passage and the cold air passage are led to the vicinity of the vehicle interior outlet, it is possible to mix the hot air and the cold air separately by the mixing means, so the temperature control of the individual outlet air temperature of the occupant is possible. It can be set appropriately by itself and can provide an individual comfortable space for passengers in the back seat.

  The above-mentioned cross member is a structure and has a quadrangular cross section, but may have a groove shape. In this case, the hot air passage and the cold air passage may be formed by closing the opening with resin or the like. good.

  The mixing means includes a movable selection door that is movable, and two openings that open on the rotation locus of the movable selection door, and changes the air volume ratio between cold air and hot air according to the rotational position of the movable selection door. In this manner, the movable selection door can be arbitrarily adjusted by manually rotating the movable selection door from the outside, and is optimal as a temperature control of the blown air.

  It is preferable to provide an opening / closing door that makes the blowout air volume variable at the vehicle interior outlet (Claim 3), so that the passenger can open and close the vehicle interior outlet. By rotating the open / close door manually from the outside, the sectional area of the opening can be changed and the air volume can be changed.

  In addition, it is preferable that the vehicle interior outlet is installed corresponding to the position of the rear seat (claim 4), and since the blowing air hits each occupant and the temperature of the blowing air is controllable, the individual comfort You can have space.

As described above, according to the present invention, the cold air passage and the hot air passage are formed integrally with the cross member of the roof frame, which is a structure, so that the space is not increased and the overhead space is reduced as much as possible. Can do. In addition, since both the cold air passage and the hot air passage are led to the ceiling, temperature control can be provided at the air outlet in the vehicle interior to provide an optimum space for each individual air outlet (claim 1).

The mixing means can be provided at a low cost by adopting a structure that is performed by changing the mixing ratio of the cold air and the hot air by moving the movable selection door (claim 2). Further, the vehicle interior outlet has an opening / closing door for adjusting the air volume, and the temperature-controlled air volume can be adjusted (Claim 3). Furthermore, since the vehicle interior outlet is installed corresponding to the rear seat position, an individual comfort space can be provided together with the above-described means (claim 4).

  Embodiments will be described below with reference to the drawings.

  1 and 2, a schematic view of a body of an automobile, for example, a one-box car 1 in which the present invention is used, is shown. A roof frame 2 as a structure is passed between a roof side rail 3 extending in the front-rear direction and a roof side rail 3 therebetween. The roof frame 2 is supported by a pillar 7 standing on the side rail 6 of the underbody 5.

  This one-box car 1 has a front seat 10 and two rows of rear seats 11 and 12 arranged behind the front seat 10 and can be entered by a door (not shown). The air conditioning of the one-box car 1 is provided with a front air conditioner 14 below the front instrument panel, which mainly performs not only the air conditioning of the passengers in the front seat but also the defrosting action.

  On the other hand, the rear two seats 11 and 12 are air-conditioned from the rear air conditioner 16. The rear air conditioner 16 is mounted on the underbody 5 and attached to one side of the body that is the side of the seats 10, 11, 12, and sucks vehicle interior air (particularly air behind the vehicle). A blower 17, a heater core 18, and an evaporator 19 are housed in a case 20.

  The air sucked from the blower 17 is warmed through the heater core 18 and cooled through the evaporator 19. These hot air and cold air are conveyed through the hot air passage 22 and the cold air passage 23 as follows.

  As shown in FIGS. 3 and 4, the hot air passage 22 and the cold air passage 23 are configured along or integrally with the pillars 7 and 7 of the body, and are guided to the ceiling, and the roof frame 2 is configured on the ceiling. As shown in the drawing, the cross member 4 is integrated with the cross member 4 and extends in the left-right direction of the body. Thus, since both the passages 22 and 23 use the air conditioning which has not been used until now, the protrusion amount to a vehicle interior can be reduced to the maximum. The hot air passage 22 and the cold air passage 23 form a cylindrical body having a rectangular cross section, but the groove-like cross member 4 may be formed by fitting a resin lid.

  5 and 6, the vehicle interior outlet 25 is located above each rear seat 11, 12 (shown in FIG. 2), has two openings 26, 27 at one end, The hot air passage 22 and the cold air passage 23 communicate with each other. The openings 26 and 27 are on the rotation locus of the movable selection door 28, and the amount of hot air and cold air to be introduced is controlled by the rotation position. That is, the temperature of the blown air is adjusted by changing the ratio of the amount of cold air. The movable selection door 28 is manually operated and rotated by a motor.

  In addition, an opening / closing door 30 is disposed at the most outlet side of the vehicle interior air outlet 25, and the amount of air blown from the air outlet 25a is gradually increased from fully closed to be fully opened depending on the rotational position. This opening / closing operation is manual and is rotated by a motor.

  7 and 8, regarding the method of assembling the warm air passage 22 and the cool air passage 23 through which the warm air and the cool air flow, FIG. 7 shows the passages 22 and 23 arranged in parallel to the pillar 7 as described in the above example. In this example, the cross member 4 is integrated. In FIG. 8, the left and right pillars 7 are used, one of which is a hot air passage 22 and the other is a cold air passage 23 which flows as a counter flow in the cross member 4. There is no problem to install.

1 is a schematic perspective view showing an embodiment of the present invention. It is a schematic side view same as the above. It is explanatory drawing by which the warm air channel | path and cold air channel | path same as the above were integrally comprised by the cross member and the pillar. FIG. 4 is a sectional view taken along line AA in FIG. 3. It is sectional drawing of the state in which the vehicle interior blower outlet was attached to the warm air passage and the cold air passage. It is a front view same as the above. It is the schematic of a warm air path and a cold air path, and is explanatory drawing of the state through which warm air and cold air flow. Similarly, it is a schematic diagram of another example of a hot air passage and a cold air passage, and is an explanatory view of a state in which hot air and cold air flow.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 One box car 2 Roof frame 4 Cross member 7 Pillar 10 Front seat 11 Rear seat 12 Rear seat 16 Rear air conditioner 18 Heater core 19 Evaporator 22 Hot air passage 23 Cold air passage 28 Movable selection door 30 Open / close door

Claims (4)

  A vehicle having a roof side rail and a cross member constituting a roof frame of a vehicle body, wherein a hot air passage and a cold air passage for air conditioning are formed integrally with the cross member and connected to the hot air passage and the cold air passage. An air conditioner for a vehicle characterized by having a mixing means for mixing warm air and cold air at an indoor outlet.   The mixing means includes a movable selection door that is movable, and two openings that open on the rotation locus of the movable selection door, and changes the air volume ratio between cold air and hot air according to the rotational position of the movable selection door. The vehicle air conditioner according to claim 1, which is configured as described above.   The vehicle air conditioner according to claim 1, wherein an opening / closing door is provided at the air outlet of the vehicle interior to make the blowout air volume variable. The vehicular air outlet according to claim 1, wherein the vehicle interior air outlet is installed corresponding to a rear seat position.

Images