JP2008168774A - Vehicular air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suitably adjust the air amount distribution of conditioning air even when an opening portion of an interior air-conditioning unit is in a half-opened mode. <P>SOLUTION: The vehicular air conditioner comprises: the opening portion 26 from which the conditioning air is blown out; a ventilating duct 40 having therein a first air passage 41 and a second air passage 42 respectively connecting with two blowoff ports provided in a vehicle cabin; and a mode switching portion provided in an air conditioning case 11 and switching the opening portion 26 between a fully opening mode and the half-opening mode. The second air passage 42 has a length from the opening portion 26 to the blowoff port longer than the first air passage. An opening area of the first opening portion 44 corresponding to the first air passage 41 at the opening portion 26 is smaller than an opening area of the second opening portion 45 corresponding to the second air passage 42 at the opening portion 26. In the vehicular air conditioner, the ratio of the opening area of the first opening portion 44 to the opening area of the second opening portion 45 becomes larger in the half-opened mode than the fully-opened mode. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle air conditioner that controls air conditioning of a passenger compartment.

  In general, a pair of left and right center face air outlets and a pair of left and right side face air outlets at both ends of the vehicle instrument panel in the vehicle lateral direction are arranged near the center of the vehicle instrument panel in the left and right direction of the vehicle. Is blowing out toward the upper body of the occupant. The opening of the indoor air conditioning unit that supplies the conditioned air to the passenger compartment is connected to the center face air outlet and the side face air outlet by a blower duct branched to the left and right, and the conditioned air from the opening of the indoor air conditioning unit is It blows off from each blower outlet toward the vehicle interior via the air duct.

  However, due to the arrangement relationship with the audio equipment and the like arranged near the center in the vehicle left-right direction, the opening of the indoor air-conditioning unit is arranged at a position other than the center of the vehicle left-right direction, The length of the right and left air ducts to the outlet may be different. In this case, due to pressure loss of the conditioned air generated in the air duct, the air volume of the air conditioned air blown from the longer opening of the left and right air ducts from the opening of the indoor air conditioning unit to each outlet There is a problem that the air volume distribution of the conditioned air blown out from the left and right outlets cannot be adjusted appropriately.

  Therefore, of the left and right air ducts, the opening area of the shorter opening from the opening of the indoor air conditioning unit to each outlet is made smaller than the opening area of the longer opening. By adjusting the opening area of the opening, the air volume distribution of the conditioned air blown out from the left and right outlets is adjusted.

  However, the adjustment of the air volume distribution of the conditioned air is adjusted in the blowing mode in which the opening of the indoor air conditioning unit is fully open. Therefore, when a part of the opening is in the blow-off mode in the half-open state, the opening area of the opening having the shorter length from the opening of the indoor air conditioning unit to the outlet of the left and right air ducts is too small, There is a problem that the distribution of the conditioned air flowing from the corresponding air outlet becomes extremely small.

  In view of the above points, the present invention provides a vehicle air conditioner in which the length from the opening of the indoor air conditioning unit of the left and right air ducts to the outlet is different and the opening area of the opening of the air duct is different. Even if it is a case where it is a blowing mode in which an opening part is a half open state, it aims at adjusting the air volume distribution of an appropriate air-conditioning wind.

  In order to achieve the above-mentioned object, the present invention provides an air-conditioning case (11) in which an opening (26) through which air-conditioned air is blown is formed, and two openings provided in the opening and the instrument panel (2) in the passenger compartment. Fully-open mode in which the air duct (40) in which two air passages (41, 42) connected to each of the air outlets are formed and the air-conditioning case (11) are provided, and the opening (26) is at least fully opened. And a mode switching unit for switching to a half-open mode for making a half-open state, and the two air passages (41, 42) are opened from the first air passage (41) and the first air passage (41) ( 26) The opening area of the first opening (44) corresponding to the first air passage (41) in the opening (26) is composed of the second air passage (42) having a long length from the outlet to the outlet. The second air passage (42 in the opening (26)). In the vehicle air conditioner that is smaller than the opening area of the second opening (45) corresponding to the first opening in the half-open mode than in the full-open mode with respect to the opening area of the second opening (45). It is characterized in that the ratio of the opening area of the portion (44) is increased.

  Thereby, in this invention, when the state of the opening part (26) of the air conditioning case (11) of the indoor air conditioning unit (1) is in the half-open mode rather than the full-open mode, the opening area of the second opening part (45). Since the ratio of the opening area of the first opening (44) to the upper portion is increased, the opening area of the first opening (44) is ensured even in the half-open mode. Therefore, it is possible to appropriately adjust the air volume distribution of the conditioned air blown out from the outlet.

  The mode switching unit has an open / close door (31) that opens and closes by sliding along the opening (26), and includes a first air passage (41) and a second air passage (42). The opening / closing door (31) is such that the ratio of the opening area of the first opening (44) to the opening area of the second opening (45) is larger in the half-open mode than in the full-open mode. ) With a simple configuration in which the boundary between the first air passage (41) and the second air passage (42) is inclined, the air conditioning is blown out from the outlet in the half-open mode. It is possible to appropriately adjust the air volume distribution of the wind.

  Further, the side of the opening / closing door (31) located on the closing side in the opening / closing direction has a longer portion corresponding to the first opening (44) as the opening / closing door (31) moves in the closing direction. When comprised, it can adjust appropriately the air volume distribution of the air-conditioning wind which blows off from the blower outlet in a half-open mode with a simple structure.

  In addition, the code | symbol in the bracket | parenthesis of each means described in the claim and this column is an example which shows a corresponding relationship with the specific means as described in embodiment mentioned later.

  In the present embodiment, the configuration of the vehicle air conditioner according to the present invention is applied to a vehicle. FIG. 1 shows a perspective view of an instrument panel 2 of a vehicle. As shown in FIG. 1, an instrument panel 2 (instrument panel) is disposed in the entire vehicle lateral direction in front of the vehicle, and an indoor air conditioning unit 1 of the vehicle air conditioner is disposed inside the instrument panel 2. The instrument panel 2 is provided with face air outlets 3 to 6 for blowing air-conditioned air toward the front seat side of the vehicle interior.

  The face outlets 3 to 6 face the front seat and are provided in the center part of the passenger seat side center outlet 3 and the driver seat side center outlet 5 provided at the center in the left and right direction of the vehicle and in the vicinity of both ends in the left and right direction of the vehicle. The front passenger side air outlet 4 and the driver side air outlet 6 are provided.

  A defroster outlet 7 that is opened horizontally is provided at the forefront of the instrument panel 2. Although not shown, a foot outlet is provided below the instrument panel 2 so as to face the feet of the front seat.

  Next, FIG. 2 is a schematic cross-sectional view of the air conditioning unit 10 in the indoor air conditioning unit 1 of the vehicle air conditioner according to the first embodiment. The air conditioning unit 10 is located inside the instrument panel 2 in the front of the vehicle interior. It is arranged on the passenger seat side (left side) at the center in the vehicle left-right direction.

  In the indoor air conditioning unit 1, a blower unit (not shown) that blows air to the air conditioning unit 10 is offset from the air conditioning unit 10 to the passenger seat side inside the instrument panel 2. The blower unit may have a well-known configuration, and an internal / external air switching unit that switches and introduces internal air (vehicle interior air) and external air (vehicle outdoor air) and air introduced from the internal / external air switching unit to the air conditioning unit unit 10. And a blower that blows air toward. This blower is provided with a centrifugal blower fan.

  The air conditioning unit 10 has a resin air conditioning case 11, which has a vertically long shape, and forms an air passage through which blown air flows from the lower side to the upper side. An air inlet space 12 into which the air blown from the blower unit flows is formed in the lowermost part of the air conditioning case 11.

  A heat exchanger section 13 is disposed above the air inlet space 12. The heat exchanger unit 13 includes an evaporator 14 that forms a cooling heat exchanger and a heater core 15 that forms a heating heat exchanger. The evaporator 14 is disposed immediately above the air inlet space 12. 15 is disposed further above the evaporator 14.

  As shown in FIG. 2, the evaporator 14 is disposed substantially horizontally above the bottom portion of the air conditioning case 11 by a predetermined height. The air that has flowed into the air inlet space 12 passes through the evaporator 14 from below as indicated by the arrow A. In the air conditioning case 11, the bottom surface portion located below the evaporator 14 constitutes a condensed water receiving portion, and a condensed water discharge port 16 is opened at the bottom of the vehicle front side.

  In addition, as is well known, the evaporator 14 is supplied with low-pressure refrigerant decompressed by a decompression means (not shown) of an air-conditioning refrigeration cycle, and the low-pressure refrigerant absorbs heat from the blown air and evaporates. Is supposed to cool.

  In the air conditioning case 11, the heater core 15 is disposed on the downstream side of the air flow of the evaporator 14, that is, on the upper side of the evaporator 14 and at a position near the rear of the vehicle. The heater core 15 is a hot water heating heat exchanger that heats air using hot water (cooling water) from a vehicle engine (not shown) as a heat source.

  Since the heater core 15 is disposed on the upper side of the evaporator 14 and closer to the rear of the vehicle, the heater core 15 is bypassed to flow toward the vehicle front side of the heater core 15 and the cool air flows as indicated by the arrow B. A cold air bypass passage 17 is formed.

  In addition, a rotating shaft 19 of the air mix door 18 is disposed in the vicinity of the upper end portion of the heater core 15 at the front side of the vehicle. An upper end portion of a plate-shaped air mix door 18 is integrally connected to the rotary shaft 19, and the air mix door 18 can rotate between the solid line position and the one-dot chain line position in FIG. 1 about the rotary shaft 19. ing.

  Here, the solid line position of the air mix door 18 is the maximum cooling position where the ventilation path of the heater core 15 is fully closed, and the one-dot chain line position is the maximum heating position where the cold air bypass passage 17 is fully closed. When the air mix door 18 opens the ventilation path of the heater core 15, the air that has passed through the evaporator 14 passes through the heater core 15 as indicated by arrow C and flows above the heater core 15.

  As is well known, the air mix door 18 adjusts the air volume ratio between the hot air passing through the heater core 15 (arrow C) and the cold air passing through the heater core 15 and passing through the cold air bypass passage 17 (arrow B). It is a temperature adjusting means for adjusting the blown air temperature.

  An air mixing unit 20 is formed above the heater core 15 in the air conditioning case 11. In the air conditioning case 11, the hot air guide wall 21 is formed so as to extend in a curved shape from the vicinity of the lower end portion of the heater core 15 toward the upper side. The warm air guide wall 21 forms a warm air passage 22 in the vehicle rear side portion of the heater core 15, and guides the warm air toward the air mixing unit 20 as indicated by an arrow C through the warm air passage 22.

  A curved cold air guide wall 23 that guides the cold air in the cold air bypass passage 17 to the air mixing unit 20 as indicated by an arrow B is formed on the surface of the air conditioning case 11 on the vehicle front side. In the air mixing unit 20, the hot air and the cold air are mixed, and air of a desired temperature is obtained by mixing the cold air.

  The blowing mode switching unit 24 is disposed on the upper side of the air mixing unit 20 (on the downstream side of the air flow), that is, on the upper surface of the air conditioning case 11. The blowing mode switching unit 24 has a semi-cylindrical opening seal surface 25 formed on the upper surface of the air conditioning case 11 such that its circumferential surface extends in the vehicle front-rear direction.

  Of the opening sealing surface 25, a face opening 26 is arranged at a site on the vehicle rear side, and a defroster opening 27 is arranged at a site on the vehicle front side with respect to the face opening 26. The foot opening 28 is disposed in the internal space of the air conditioning case 11 below the opening sealing surface 25 as will be described later.

  The face opening 26 blows out air toward the face of the occupant through the face duct 40. The configuration near the face opening 26 will be described in detail later. The defroster opening 27 blows out air toward the inner surface of the vehicle front window glass through a defroster duct (not shown).

  Inside the semi-cylindrical opening seal surface 25, a blow mode switching rotary door 31 is disposed so as to be rotatable in the vehicle front-rear direction by a rotation shaft 32. The rotary door 31 is provided with a circumferential wall surface 33 having a predetermined radius of curvature around the rotation shaft 32, and both end portions in the axial direction (vehicle width direction) of the circumferential wall surface 33 are rotated by the side plate portions 34. The structure is connected to the shaft 32. The rotary door 31 corresponds to the opening / closing door in the present invention.

  In addition, a semi-cylindrical door rotation operation space 37 that allows the rotary door 31 to rotate is formed inside the semi-cylindrical opening seal surface 25 on the upper surface portion of the air conditioning case 11. This rotational operation space is formed in the upper part of the air conditioning case 11 over a range from the upper part (vehicle front part) of the cold air guide wall 23 to the lower part on the vehicle rear side than the face opening 26.

  On the other hand, in the space in the air conditioning case 11, a partition wall 38 is connected to the upper end portion of the hot air guide wall 21, and a foot opening 28 is opened near the upper portion of the partition wall 38. Further, a foot blowing passage 29 is defined by a partition wall 38 at a position on the vehicle rear side of the warm air guide wall 21. The partition wall 38 has a shape projecting upward in a mountain shape, and this mountain-shaped projecting shape forms the door rotation operating space 37 up to the vehicle rear side portion of the partition wall 38.

  The foot opening 28 communicates with a foot duct 30 via a foot outlet passage 29, and the foot duct 30 is connected to foot outlets (not shown) on both the left and right sides of the air conditioning case 11 in the vehicle width direction. Air is blown out toward the feet.

  Further, the foot opening 28 is disposed so as to face the first plate door portion 35 and the second plate door portion 36 of the rotary door 31 in the rotation direction of the rotary door 31, thereby the first and second plate doors. The foot opening 28 is opened and closed by the rotational displacement of the portions 35 and 36.

  In the present embodiment, by selecting the operation position of the rotary door 31, a face mode shown in FIG. 3A, a bi-level mode shown in FIG. 3B, a foot mode shown in FIG. The blowing mode can be set to the foot defroster mode shown in FIG. 4B and the defroster mode shown in FIG.

  As shown in FIG. 3 (a), in the face mode, the rotary door 31 is operated to the position shown in FIG. 3 (a) to fully open the face opening 26, fully close the defroster opening 27, and open the foot opening. 28 is closed. Thereby, the conditioned air passing through the face opening 26 can be blown out from the face outlets 3 to 6 to the upper body side of the passenger in the vehicle compartment via the face duct 40.

  As shown in FIG. 3B, in the bi-level mode, the rotary door 31 is operated to the position shown in FIG. 3B, the face opening 26 is half-opened, the defroster opening 27 is fully closed, and the foot opening is opened. The part 28 is opened. Thus, the air-conditioning air passing through the face opening 26 is blown out from the face outlets 3 to 6 shown in FIG. The wind can be blown out from a foot outlet (not shown) through the foot outlet passage 29 and the foot duct 30 to the feet of the passengers in the passenger compartment.

  As shown in FIG. 4A, in the foot mode, the rotary door 31 is operated to the position shown in FIG. 4A to fully close the face opening 26 and the defroster opening 27 and open the foot opening 28. To do. As a result, the conditioned air passing through the foot opening 28 can be blown out from a foot outlet (not shown) via the foot outlet passage 29 and the foot duct 30 to the feet of the passengers in the passenger compartment.

  As shown in FIG. 4B, in the foot defroster mode, the rotary door 31 is operated to the position shown in FIG. 4B, the face opening 26 is fully closed, the defroster opening 27 is half opened, and the foot opening is opened. The part 28 is opened. As a result, air-conditioning air passing through the foot opening 28 is blown out from a foot outlet (not shown) through the foot outlet passage 29 and the foot duct 30 to the feet of the passengers in the passenger compartment, and at the same time, the air-conditioning air passes through the defroster opening 27. The wind can be blown out from the defroster outlet 7 shown in FIG. 1 toward the vehicle front window glass via a defroster outlet duct (not shown).

  As shown in FIG. 4C, in the defroster mode, the rotary door 31 is operated to the position shown in FIG. 4C to fully close the face opening 26, fully open the defroster opening 27, and open the foot opening. 28 is closed. Thereby, the conditioned air passing through the defroster opening 27 can be blown out from the defroster outlet 7 shown in FIG. 1 toward the vehicle front window glass via a defroster outlet duct (not shown).

  The operation in the blowing mode is configured by an automatic operation mechanism using a servo motor, but may be a manual operation that is directly operated by the manual operation force of the occupant.

  Next, the configuration in the vicinity of the face opening 26 in the air conditioning case 11 used in the present embodiment will be described in detail with reference to FIG. The face duct 40 is configured as an arrow with respect to the front-rear and left-right directions of the vehicle shown in FIG.

  FIG. 5A is a cross-sectional view taken along the line XX in FIG. 3A and shows a cross section of the face duct 40 when the blowing mode is set to the face mode in which the face opening 26 is fully opened. ing. FIG. 5B shows a cross-sectional view along the line Y-Y in FIG. 3B, and the blowing mode is set to the bi-level mode in which both the face opening 26 and the foot opening 28 are substantially half-opened. The cross section of the face duct 40 when set is shown. For convenience of explanation, the cross section of the face duct 40 in FIGS. 5A and 5B shows a state in which the face opening 26 and the like are seen through.

  As shown in FIGS. 5A and 5B, the face opening 26 of the present embodiment forms a rectangular opening so as to extend in the vehicle left-right direction. The face opening 26 is opened and closed by a rotary door 31 in the air conditioning unit 10, and the circumferential wall 33 of the rotary door 31 slides forward in the vehicle front-rear direction, so that the face opening 26 is fully opened (see FIG. 5 (a)), the face opening 26 is half-opened by sliding backward (the state of FIG. 5 (b)).

  A face duct 40 is connected to the face opening 26. The face duct 40 branches into a passenger seat side duct 41 and a driver seat side duct 42 on the downstream side of the air-conditioning air flow.

  Further, the face duct 40 is a partition that branches the face opening 26 into a passenger seat side opening 44 and a driver seat side opening 45 and branches the face duct 40 into a driver seat side duct 42 and a passenger seat side duct 41. A plate 43 is provided. The passenger seat side opening 44 corresponds to the first opening in the present invention, and the driver seat side opening 45 corresponds to the second opening. The partition plate 43 corresponds to the boundary between the first opening and the second opening in the present invention.

  The passenger seat side duct 41 is connected to the passenger seat side center outlet 3 on the upstream side of the conditioned airflow, and is connected to the passenger seat side outlet 4 on the downstream side of the conditioned airflow.

  The driver's seat side duct 42 is connected to the driver's seat side center outlet 5 at the upstream side of the conditioned air flow, and is connected to the driver's seat side outlet 6 at the downstream side of the conditioned air flow.

  In the present embodiment, the indoor air-conditioning unit 1 is disposed on the passenger seat side (left side) in the center in the left-right direction of the vehicle, and the opening position of the face opening 26 is also offset toward the passenger seat side (left side) in the center in the vehicle left-right direction. Is provided. Therefore, the length from the passenger seat side opening 44 of the passenger seat side duct 41 to each of the corresponding outlets 3 and 4 is equal to each of the corresponding outlet ports 5 and 6 from the driver seat side opening 45 of the driver seat side duct 42. The one shorter than the length up to is used.

  In such a vehicle air conditioner, the partition plate 43 in the face duct 40 is configured such that the opening area of the passenger seat side opening 44 is smaller than the opening area of the driver seat side opening 45. The distribution of wind volume is adjusted.

  A specific configuration of the partition plate 43 is such that one end portion of the partition plate 43 is an inner wall surface of the face duct 40 on the side where the rotary door 31 opens (the front side in the vehicle front-rear direction) and is closer to the passenger seat (in FIG. 5). It is connected to the inner wall on the left side. Further, the other end of the partition plate 43 is an inner wall surface of the face duct 40 on the side where the rotary door 31 is closed (rear side in the vehicle front-rear direction), and is closer to the driver's seat (right side in FIG. 5). It is connected. Therefore, the partition member 31 is continuously inclined with respect to the opening / closing direction (vehicle longitudinal direction) of the rotary door 31. Further, the side located in the opening / closing direction of the rotary door 31 (the side on the rear side in the vehicle front-rear direction) is the passenger seat side opening 44 as the rotary door 31 changes the face opening 26 from the open state to the closed state. The length of the part corresponding to is increased.

  Due to the configuration of the partition plate 43, the face opening 26 and the foot are set more than when the blowing mode is set in the face mode in which the face opening 26 is fully opened (the state shown in FIGS. 3A and 5A). The passenger seat side opening relative to the opening area of the driver seat side opening 45 is set in the bi-level mode in which both of the openings 28 are substantially half-opened (states of FIGS. 3B and 5B). The ratio of the opening area of the portion 44 can be increased.

  The main operations of the vehicle air conditioner according to this embodiment will be described.

  When the start switch (A / C switch) of the vehicle air conditioner is turned on, the vehicle air conditioner operates.

  The conditioned air generated by the indoor air conditioning unit 1 is guided to the face duct 40 inside the instrument panel 2 from the face opening 26 and is separated from the passenger seat side opening 44 by the partition plate 43 provided in the face duct 40. Then, the air is diverted to the driver seat side duct 42 via the passenger seat side duct 41 and the driver seat side opening 45.

  The partition plate 43 is configured such that the opening area of the passenger seat side opening 44 is smaller than the opening area of the driver seat side opening 45, and the amount of conditioned air passing through the driver seat side opening 45 is The air volume that is greater than the air volume that passes through the passenger seat side opening 44 is distributed.

  When the blow-out mode is the face mode (the state shown in FIGS. 3A and 5A), the amount of the conditioned air passing through the driver seat side opening 45 is the same as that of the conditioned air passing through the passenger seat side opening 44. Since the air volume is larger than the air volume, even if there is an influence such as pressure loss of the conditioned air in the driver side duct 42, the passenger side center outlet 3, the passenger side side outlet 4, and the driver side center outlet are provided. The air volume distribution of the conditioned air blown out from the outlet 5 and the driver side side air outlet 6 can be adjusted appropriately.

  When the blow-out mode is the bi-level mode (the state shown in FIGS. 3B and 5B), the face opening 26 is in a half-open state by the rotary door 31, so that the conditioned air passing through the face opening 26 The air volume is less than in face mode. Here, due to the configuration of the partition plate 43 in the face duct 40, the opening area of the passenger seat side opening 44 with respect to the opening area of the driver seat side opening 45 is larger in the bi-level mode than in the face mode. The ratio is increased. Therefore, the air volume of the conditioned air passing through the driver seat side opening 45 is larger than the air volume of the conditioned air passing through the passenger seat side opening 44, but the air volume of the air conditioned air passing through the passenger seat side duct 41. Can also be secured.

  Thereby, even in the case of the bi-level mode, the conditioned air blown out from the passenger seat side center outlet 3 and the passenger seat side outlet 4, the driver seat side center outlet 5 and the driver seat side outlet 6 The air volume distribution can be adjusted appropriately.

  As described above, even when the opening portion of the indoor air conditioning unit 1 is in the blow-off mode in the half-open state, the air volume distribution of the air-conditioning air blown out from each outlet with a simple configuration that changes the configuration in the face duct 40 Adjustments can be made appropriately.

(Other embodiments)
In the above-described embodiment, the opening area of the face opening 26 of the indoor air conditioning unit 1 is adjusted by the partition plate 43 provided in the face duct 40. However, the present invention is not limited to this. In this case, the opening area of the passenger seat side opening 44 in the bi-level mode is provided by providing a hole or the like for blowing the air-conditioning air at a portion of the rotary door 31 that closes the passenger seat side opening 44 of the face opening 26. It is good also as a structure which enlarges.

  Thereby, in the bi-level mode, the ratio of the opening area of the passenger seat side opening 44 to the opening area of the driver seat side opening 45 can be increased by a hole or the like provided in the rotary door 31. Moreover, it can respond by only changing the rotary door 31.

  Moreover, in the above-mentioned embodiment, although the partition member 31 is made to incline continuously with respect to the opening / closing direction (vehicle front-back direction) of the rotary door 31, it is not limited to this. The level mode may be configured such that the ratio of the opening area of the passenger seat side opening 44 to the opening area of the driver seat side opening 45 is larger.

  In the above-described embodiment, the rotary door 31 is used to open and close the face opening 26. However, the present invention is not limited to this. For example, the present invention is applicable to a configuration using a film door or a slide door. May be.

  In the above-described embodiment, the present invention is applied to the bi-level mode (the state shown in FIG. 3B). However, the present invention is not limited to this, and an opening such as a foot differential mode (the state shown in FIG. 4B) is used. You may apply to the blowing mode in which a part becomes a half-open state.

  Further, in the above-described embodiment, the opening 26 of the indoor air conditioning unit 1 is configured to be offset toward the front passenger seat side (left side) in the center in the vehicle left-right direction. However, the present invention is not limited to this. For example, the structure provided in the driver's seat side (right side) of the center part of the vehicle left-right direction may be offset. Even when the opening 26 of the indoor air-conditioning unit 1 is arranged at the center in the left-right direction of the vehicle, the left and right air flow to the opening 26 of the indoor air-conditioning unit 1 and the respective outlets due to the arrangement of the outlets. It can be applied when the length of the duct is different.

It is a perspective view of the instrument panel of the vehicle of the said embodiment. It is sectional drawing of the air-conditioning unit part of the vehicle air conditioner of the said embodiment. It is a fragmentary sectional view of the air-conditioning unit part of the air-conditioner for vehicles of the above-mentioned embodiment. It is a fragmentary sectional view of the air-conditioning unit part of the air-conditioner for vehicles of the above-mentioned embodiment. It is sectional drawing of the face duct of the vehicle air conditioner of the said embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Indoor air-conditioning unit, 3 ... Passenger seat side center outlet, 4 ... Passenger seat side outlet, 5 ... Driver seat side center outlet, 6 ... Driver seat side outlet, 11 ... Air conditioning case, 26 ... Face Opening, 31 ... Rotary door, 33 ... Circumferential wall surface, 40 ... Face duct, 41 ... Passenger seat side duct, 42 ... Driver seat side duct, 43 ... Partition plate, 44 ... Passenger seat side opening, 45 ... Driver seat Side opening.

Claims (3)

An air conditioning case (11) formed with an opening (26) through which air conditioned air is blown;
An air duct (40) formed with two air passages (41, 42) connected to the opening and each of two air outlets provided in the instrument panel (2) in the vehicle interior;
A mode switching unit that is provided in the air conditioning case (11) and switches between a fully open mode in which the opening (26) is at least fully opened and a half open mode in which the opening is partially opened;
The two air passages (41, 42) are a first air passage (41) and a second air passage having a longer length from the opening (26) to the air outlet than the first air passage (41). An air passage (42),
The opening area of the first opening (44) corresponding to the first air passage (41) in the opening (26) corresponds to the second air passage (42) in the opening (26). In the vehicle air conditioner that is smaller than the opening area of the second opening (45)
The ratio of the opening area of the first opening (44) to the opening area of the second opening (45) is larger in the half-open mode than in the full-open mode. A vehicle air conditioner characterized by the above. The mode switching unit has an open / close door (31) that opens and closes by sliding along the opening (26).
The boundary between the first air passage (41) and the second air passage (42) is such that the half-open mode is more open to the opening area of the second opening (45) than the full-open mode. The vehicle air conditioner according to claim 1, wherein the opening / closing door (31) is inclined with respect to an opening / closing direction so that a ratio of an opening area of the first opening (44) is increased. apparatus. The side of the opening / closing door (31) located on the closing side in the opening / closing direction has a length corresponding to the first opening (44) as the opening / closing door (31) moves in the closing direction. It is comprised so that it may become long, The vehicle air conditioner of Claim 2 characterized by the above-mentioned.

Images