JP6287777B2 - Air conditioner for vehicles - Google Patents

Description

  The present invention relates to an air conditioner for a vehicle in which cold air coming out from an outlet air surface of a heat exchanger for cooling and hot air coming out from an air outlet surface of a heat exchanger for heating are mixed and blown out as conditioned air into a vehicle interior. It is about.

  Conventionally, there is a vehicle air conditioner described in Patent Document 1. This device is an air mix type vehicle air conditioner that adjusts the air volume ratio between the warm air flowing through the heating heat exchanger and the cold air flowing bypassing the heating heat exchanger. Immediately after the outlet air surface of the heat exchanger for heating, a plurality of baffle members are arranged in the range of the hot air blowing space where hot air blows out from the outlet air surface. The baffle member is formed to extend toward the case wall surface facing the outlet air surface. Each baffle member has a hook shape in which the windward side portion in the cold air flow direction is closed and the leeward side portion is opened. A baffle member guides the warm air from the exit air surface of the heat exchanger for heating toward a case wall surface. And the warm air which flows in a baffle member crosses the cold air which flows between baffle members, and flows to the case wall surface which opposes. Thereby, the ratio of the warm air flow which reaches | attains a case wall surface is increased, and the mixability of cold air and warm air is improved.

JP 2007-331416 A

  According to the technique of Patent Document 1, a plurality of bowl-shaped baffle members are required, and the configuration is complicated. Moreover, the dimension of the extending direction of a baffle member becomes large. Conventionally, since a sufficiently large air mix area can be provided in the unit case, the temperature control can be adjusted with a simple guide or a relatively small baffle member.

  However, in recent years, there has been a demand for smaller and lighter unit cases, and the air mix region has to be further reduced in size, and the baffle members have become more complex and dense.

  In view of the above problems, the present invention has a simple structure of a member that guides the wind, and controls the mixing of the cool air and the warm air so that the air at a desired temperature can be supplied to each outlet through easy adjustment. An object of the present invention is to provide a vehicle air conditioner that can be used.

  Descriptions of patent documents listed as prior art can be introduced or incorporated by reference as explanations of technical elements described in this specification.

  In order to achieve the above object, the present invention employs the following technical means. That is, the vehicle air conditioner of the present invention includes a unit case (1) that forms an air passage through which air flows, and a cooling heat exchanger that is disposed across the cold air passage in the unit case (1) and cools the air. (4), a heating heat exchanger (3) that is disposed downstream of the cooling heat exchanger (4) and heats the air, a cooling heat exchanger (4), and a heating heat exchanger (3 The air mix that adjusts the air volume ratio between the cool air that bypasses the heating heat exchanger (3) and the warm air that passes through the heating heat exchanger (3) in the unit case (1) A door (6), and air outlets (21, 7, 81, 82) that are provided in the unit case (1) and blown out the conditioned air adjusted in temperature by the air mix door (6) to a plurality of parts in the vehicle interior; A unit on the downstream side of the heat exchanger (4) for cooling the unit case (1) A unit case portion having a narrow left and right width for housing the cooling heat exchanger (4) and a unit case portion having a wide left and right width, which are provided in the wall portion of the case (1), A step part (91, 92) that expands the left and right width, and a corner through which a part of the warm air that is formed at the left and right corners adjacent to the step part (91, 92) and passes through the heating heat exchanger (3) flows. The hot air passages (10a, 10c) and the cooling air exchanger (4) are provided on the downstream side of the cooling air exchanger (4). And a guide member (11) for guiding toward 10a, 10c).

  According to this invention, the guide member branches the cold air that has passed through the outlet air surface of the cooling heat exchanger and guides it toward the left and right step portions. The step portion can provide a hot air passage having a larger left-right width than the cold air passage on the downstream side of the cooling heat exchanger. A part of the warm air from the heat exchanger for heating rising the corner hot air passage located at the left and right ends of the warm air passage, and the cold air from the cooling heat exchanger branched to the left and right by the guide member, Can be mixed at the corners of the unit case. Since the corner hot air passage improves the mixing of the cold air and the hot air, the required volume in the unit case can be reduced. Moreover, a desired temperature can be supplied to each of the plurality of outlets by adjusting the shape and size of the guide member.

  Next, the guide member (11) includes a head (11a) provided on the cooling heat exchanger (4) side, and guide wings (11b1, 11b2) extending from the head (11a) to the left and right. And have.

  According to the present invention, the cool air from the cooling heat exchanger (4) is separated by the head (11a), and the left and right corner hot air passages (10a, 10c) are guided along the guide blade portions (11b1, 11b2). Can be guided towards.

  In addition, the code | symbol in parentheses as described in a claim and said each means thru | or description is an example which shows the correspondence with the specific means as described in embodiment mentioned later easily, and limits the content of invention is not.

It is a schematic block diagram in the unit case of the vehicle air conditioner in 1st Embodiment of this invention. It is a perspective view which shows the structure in the unit case of FIG. It is explanatory drawing explaining the effect | action of the guide member of FIG. It is a schematic block diagram which shows the shape of the guide member in 2nd Embodiment of this invention. It is explanatory drawing explaining an effect | action of the guide member of FIG. It is a schematic block diagram which shows the shape of the guide member in 3rd Embodiment of this invention. It is a schematic block diagram which shows the shape of the guide member in 4th Embodiment of this invention. It is a schematic block diagram which shows the shape of the guide member in 5th Embodiment of this invention.

  A plurality of modes for carrying out the present invention will be described below with reference to the drawings. In each embodiment, parts corresponding to the matters described in the preceding embodiment may be denoted by the same reference numerals, and redundant description may be omitted. In the case where a part of the configuration is described in each form, the other forms described above can be applied to the other parts of the configuration.

  Not only combinations of parts that clearly indicate that the combination is possible in each embodiment, but also the embodiments are partially combined even if they are not clearly specified unless there is a problem with the combination. It is also possible.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1 schematically shows a configuration in a unit case 1 of a vehicle air conditioner according to the present invention. The unit case 1 that forms an air passage through which air flows toward the passenger compartment flows conditioned air from a blower (not shown) toward the downstream side of the air passage.

  In the unit case 1, a heating heat exchanger 3 that heats air and a cooling heat exchanger 4 that cools air are disposed so as to cross the air flow flowing in the unit case 1. In the unit case 1, cool air flows above the heating heat exchanger 3 from the cooling heat exchanger 4 as indicated by arrows Y33, Y41, Y42, and Y34.

  In addition, the unit case 1 is provided with a hot air passage that is a passage of hot air that passes through the heating heat exchanger 3 and flows upward of the unit case 1. This hot air passage is a passage through which the hot air that has passed through the heating heat exchanger 3 flows upward. The warm air passage includes a central warm air passage that flows in the center of the unit case 1 from the heat exchanger 3 for heating as indicated by an arrow Y38 in FIG. 3, and both ends of the unit case 1 from the heat exchanger 3 for heating. Consists of corner hot air passages 10a and 10c that flow as indicated by arrows Y37 and Y39 in FIG. The central hot air passages and the corner hot air passages 10a and 10c are not passages partitioned by walls, but are one passage communicating with each other. The central hot air passages and the corner hot air passages 10a and 10c are also mixed regions in which the cold air and the hot air cooled by the cooling heat exchanger are mixed.

  The air mix door 6 is provided on the upstream side of the heating heat exchanger 3 in the form of a known slide door. The air mix door 6 adjusts the air volume ratio between the cold air that bypasses the heating heat exchanger 3 and the hot air that passes through the heating heat exchanger 3. A plurality of outlets 7, 81, 82 for blowing the conditioned air whose temperature is adjusted by the air mix door 6 to a plurality of parts in the passenger compartment are provided in the unit case 1 and open upward.

  The unit case 1 is formed with step portions 91 and 92 that bulge wall portions at right angles on both the left and right sides on the downstream side of the outlet air surface 4a of the cooling heat exchanger 4. The wall surface of the unit case has a step due to the presence of the step portions 91 and 92, and the size of the step is the dimension Wa. The step portions 91 and 92 increase the left and right widths of the air passage, and form corner hot air passages 10a and 10c in which part of the hot air flows in the corners of the unit case 1 as indicated by arrows Y37 and Y39. FIG. 2 shows only one side of the unit case 1, but the step portions 91 and 92 exist symmetrically on the left and right of the unit case 1. In addition, the step portions 91 and 92 are portions that connect the unit case portion having a narrow left and right width and the unit case portion having a wide left and right width that house the cooling heat exchanger 4 and have a left and right passage width that is larger than that of the cold air passage. Expanding. The step portions 91 and 92 are formed from the bottom of the unit case 1 to the vicinity of the guide member 11. However, the step portions 91 and 92 may be formed not from the bottom, but from the middle, and can guide the warm air. What is necessary is just to form an air path.

  The guide member 11 is provided on the downstream side of the outlet air surface 4 a of the cooling heat exchanger 4. The guide member 11 branches the cold air that has not passed toward the heating heat exchanger 3 among the cold air that has passed through the outlet air surface 4a to the left and right as indicated by arrows Y33, Y41, Y42, and Y34 in FIG. The guide member 11 guides the cold air from the cooling heat exchanger 4 toward the left and right corner hot air passages 10a and 10c. When viewed from above, the guide member 11 has a shape that spreads right and left like a wing of a seagull as shown in FIG.

  The cold air flowing as indicated by the arrows Y33 and Y34 branched by the guide member 11 collides with the hot air in the corner hot air passages 10a and 10c rising from below and is mixed to become the conditioned air 56 in the upper center. It flows to the face outlet 7 and the side face outlets 81 and 82.

  In FIG. 2, the evaporator which comprises the heat exchanger 4 for cooling is provided so that the air path in the unit case 1 may be crossed. A heater core constituting the heating heat exchanger 3 is formed on the downstream side of the evaporator. In the heating heat exchanger 3, hot water serving as engine cooling water flows, and heats the air passing through the heating heat exchanger 3. A part of the heated air passes along a portion adjacent to the stepped portions 91 and 92 through a certain extent of area such as the corner hot air passages 10a and 10c indicated by arrows Y37 and Y39 in FIG. Rise.

  The guide member 11 has a wall portion 11c coupled to the head portion 11a between the guide wing portions 11b1 and 11b2 branched to the left and right. The guide member 11 is fixed to the wall surface of the unit case 1 by a fixed shaft 15 penetrating the wall portion 11c.

  Arrows Y1 and Y2 illustrated in FIG. 2 indicate a front side that is a traveling direction of the vehicle, a rear side that is a backward direction, a lower side that is a floor direction, and an upper side that is a ceiling direction. On the front side of the center face air outlet 7, a defroster air outlet 21 that blows warm air to the windshield is provided. In the defroster outlet 21, a defroster door 21d that adjusts the amount of wind blown to the windshield as defroster blowout air is provided so as to rotate together with the shaft. FIG. 1 is a partially broken view of the defroster outlet 21 and virtually shows the internal defroster door 21d.

  Further, the face door 23 is connected to the rotary shaft 22 so as to control the air flow flowing out from the center face air outlet 7. The pair of left and right side face doors 24 is provided on the rotating shaft 22 and controls the air flow flowing out from the side face outlets 81 and 82. In FIG. 2, only one side face door 24 is illustrated, and the other side face door is provided in the side face outlet 82.

  Further, guide wing portions 11 b 1 and 11 b 2 that branch and extend to the left and right of the guide member 11 are coupled to the fixed shaft 15 and extend. As described above, the guide blade portions 11b1 and 11b2 are coupled to the fixed shaft 15, so that the vibration of the guide blade portions 11b1 and 11b2 can be suppressed.

  The guide member 11 is formed of an integral resin molded product together with the fixed shaft 15, and the guide member 11 is supported on the wall surface in the unit case 1 via the fixed shaft 15. A foot opening 26 for blowing out the conditioned air indicated by an arrow Y3 in FIG. 2 is provided in the upper portion of the heating heat exchanger 3 on the wall surface in the unit case 1. Thus, since the foot opening part 26 is formed, a comparatively warm wind can be blown off to the passenger | crew's feet like arrow Y3. In this case, the amount and temperature of the blown conditioned air are controlled by the rotation of the foot door 25.

(Operational effects of the first embodiment)
The effect of 1st Embodiment is demonstrated using FIG. In 1st Embodiment, the guide member 11 branches the cold wind which passed the exit air surface 4a of the heat exchanger 4 for cooling to right and left. The branched cold air is guided to the corner hot air passages 10a and 10c adjacent to the left and right step portions 91 and 92 as indicated by arrows Y33 and Y34.

  When warm air flows to the corners of the unit case 1 through the steps 91 and 92 from the heating heat exchanger 3 as indicated by arrows Y37 and Y39, the corner warm air passages 10a and 10c can be formed. . The hot air rising through the corner hot air passages 10 a and 10 c and the cold air branched right and left by the guide member 11 can be mixed at the corner of the unit case 1.

  And since the dimension of the unit case 1 of the front-back direction along arrow Y2 of FIG. 2 required in order to mix air can be made small, the volume of the unit case 1 can be reduced in size. Further, by adjusting the shape and dimensions of the guide member 11, a desired temperature can be supplied to each of the plurality of outlets 21, 7, 81, 82.

  The guide member 11 includes a head portion 11a that is closest to the outlet air surface 4a of the cooling heat exchanger 4, and curved guide blade portions 11b1 and 11b2 that branch from the head portion 11a to the left and right and extend. The wing shape of a seagull having Therefore, the air exiting from the cooling heat exchanger 4 can be smoothly guided toward the left and right corner hot air passages 10a and 10c. The guide member 11 that guides the wind has a simple configuration, and can control the mixing of the cool air and the warm air so that the air at a desired temperature can be supplied to each outlet through easy adjustment. The guide member branches the cool air up and down, diffuses it to the left and right, and guides it toward the hot air passage 10b behind.

  The warm air passing through the corner warm air passages 10a and 10c as indicated by arrows Y37 and Y39 rises adjacent to the step portions 91 and 92 having the width dimension Wa. The hot air of arrows Y37 and Y39 flowing through the corner hot air passages 10a and 10c is a hot air supply source to the defroster outlet 21 and the like. The guide member 11 adjusts the lateral distribution of the cold air flowing through the center face air outlet 7 and the side face air outlets 81 and 82 and adjusts the supply amount of the cold air and the hot air to the defroster air outlet 21. The dimensions involved in these adjustments are the width dimension Wa of the step portions 91 and 92, the spread dimension Wb of the guide blade portions 11b1 and 11b2, and the height dimension Wc of the guide blade portions 11b1 and 11b2. By increasing or decreasing these dimensions Wa, Wb, Wc, it is possible to adjust the conditioned air at the outlets 7, 81, 82 to a desired temperature.

  In the lower part of the guide member 11, the cold air branched from left and right as indicated by arrows Y 35 and Y 36 is mixed with part of the warm air flowing through the corner hot air passages 10 a and 10 c rising as indicated by arrows Y 37 and Y 39. This mixing produces a mixed region of hot air and cold air. Further, the warm air indicated by the arrow Y38 passing through the central portion of the guide member 11 and the cold air indicated by the arrows Y41h and Y42h are mixed in the mixing region 10b. The wind having an appropriate temperature as a result of mixing flows as indicated by arrows Y31 and Y32 and becomes air-conditioned wind 56, which is blown out from the center face air outlet 7 and the side face air outlets 81 and 82 into the vehicle interior.

  In order to reduce the variation in the face air outlet temperature between the center face air outlet 7 and the side face air outlets 81 and 82, it is preferable to increase the dimension Wc and reduce the dimension Wa.

  For example, the temperature difference between the upper and lower outlets in the case of a vehicle air conditioner having a bi-level outlet mode that blows out from both the face and the foot, or the upper and lower outlet temperature difference between the foot opening 26 and the defroster outlet 21 is enlarged. There is a need to. In this case, it is preferable to reduce the dimension Wa and the dimension Wc and increase the dimension Wb. By adjusting the dimensions Wa, Wb, and Wc in this way, the target temperature variation and the upper and lower temperature difference can be established as desired.

  The guide blades 11b1 and 11b2 of the guide member 11 are curved in order to minimize the influence of the ventilation resistance when the cold air having a high flow velocity at the center is guided to the side. The dimensions Wa, Wb, and Wc depend on the air volume and angle when the cold air collides with the guide member 11, the direction when the cold air is guided to the guide member 11, and the air volume of each outlet 21, 7, 81, 82. It is necessary to make it different for each vehicle air conditioner. Therefore, in actual development, first, the guide member 11 is first set at a position as shown in FIG. 1, and the final shape and dimensions of the guide member 11 are determined by numerical calculation and simulation.

  Examples of actual dimensions are the passage width WU = 165 mm of the unit case 1, the width dimension Wa = 25 mm of the step portions 91, 92, the width dimension Wb = 160 mm of the guide member 11, and the height dimension Wc = 30 mm of the guide member 11. . Thereby, the up-and-down temperature difference in bilevel mode can be set to 21.2 degreeC, and the up-and-down temperature difference between the foot opening part 26 and the defroster blower outlet 21 can be set to 12.4 degreeC.

  Moreover, the guide member 11 has the wall part 11c couple | bonded with the head part 11a, and is being fixed to the wall surface of the unit case 1 by the fixed axis | shaft 15 which penetrates this wall part 11c. According to this, the guide member 11 can be firmly attached to the center portion of the unit case 1 by the fixed shaft 15.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. In the following embodiments, the same components as those in the first embodiment described above are denoted by the same reference numerals, description thereof is omitted, and different configurations will be described. In addition, about 2nd Embodiment or less, the same code | symbol as 1st Embodiment shows the same structure, Comprising: The description which precedes is used. FIG. 4 shows a schematic configuration of the guide member 11 used in the second embodiment as viewed from above. Moreover, the effect | action of the guide member 11 of FIG. 4 is demonstrated using FIG.

  As shown in FIG. 5, openings 11 h 1 and 11 h 2 including through holes are formed on the surface of the guide member 11, and a part of the cold air is guided behind the guide member 11 as indicated by arrows Y 41 h and Y 42 h. In this way, it is possible to mix hot air and cold air that rises as indicated by the arrow Y38 in the central portion behind the guide member 11. Moreover, the increase in weight and ventilation resistance can be relieved by providing opening part 11h1, 11h2. As described above, the openings 11h1 and 11h2 through which the cool air flows are formed in the guide blade portions 11b1 and 11b2, so that it can be further changed to a mixed form of the cool air and the hot air.

(Third embodiment)
Next, a third embodiment of the present invention will be described. In the first embodiment, the head is sharply sharpened and has a structure with seagull-shaped guide wings 11b1 and 11b2, but it is sufficient that the wind can be branched left and right, and the head 11a is not sharp as shown in FIG. It may be configured. Also in FIG. 6, openings 11h1 and 11h2 are formed in a part of the guide wings 11b1 and 11b2 on both the left and right sides of the flat head portion 11a, and a part of the cold air is shown behind the guide member 11 as indicated by arrows Y41h and Y42h. Is leading. The openings 11h1 and 11h2 may be U-shaped grooves that are open at one end.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described. In FIG. 7, the guide blade portions 11b1 and 11b2 are formed so that the cross-sectional shape is not a curved line but a broken line. Further, openings 11h1 and 11h2 are provided at the bent portions of the broken lines. As a result, wind flows through the openings 11h1 and 11h2 as indicated by arrows Y41h and Y42h. In the fourth embodiment, the guide wing portions 11b1 and 11b2 extend from the head portion 11a toward the wall surface of the unit case 1 in a polygonal line shape. Therefore, the guide blade portions 11b1 and 11b2 are easy to manufacture, and the simulation of the wind flow by the guide blade portions 11b1 and 11b2 is also easy.

(Fifth embodiment)
Next, a fifth embodiment of the present invention will be described. In FIG. 8, the left and right guide vane portions 11b1 and 11b2 have individual head portions 11a1 and 11a2. Further, with the gaps between the head portions 11a1 and 11a2 and the wall portions 11c1 and 11c2 as openings, cold air flows as shown by an arrow Y41h. In the fourth embodiment, the guide wings 11b1 and 11b2 extend from the pair of heads 11a1 and 11a2 toward the left and right wall surfaces of the unit case 1, respectively. According to this, it is possible to form a wind passage of an arbitrary size between the guide blade portions 11b1 and 11b2. The left and right guide vane portions 11b1 and 11b2 do not have to be completely symmetrical.

(Other embodiments)
In the above embodiment, the preferred embodiment of the present invention has been described. However, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the present invention. It is. The structure of the said embodiment is an illustration to the last, Comprising: The scope of the present invention is not limited to the range of these description. The scope of the present invention is indicated by the description of the scope of claims, and further includes meanings equivalent to the description of the scope of claims and all modifications within the scope.

  The heat exchanger 3 for heating is not limited to the one through which the hot water from the engine flows, but may be constituted by an electric heater or a heat pump condenser. The air mix door 6 that adjusts the air volume ratio between the hot air passing through the heating heat exchanger 3 and the cold air passing through the cooling heat exchanger 4 is not a sliding door type, but rotates around its axis if space permits. It may be a type having an air mix damper.

  The step portions 91 and 92 in the above-described embodiment are formed by wall portions that are bent at right angles, but may be step portions that are inclined and gradually increase the cross-sectional area of the passage. In short, in the portion where the passage cross-sectional area adjacent to the step portions 91 and 92 is enlarged, a part of the warm air passing through the heating heat exchanger 3 rises as indicated by arrows Y37 and Y39. It is sufficient if 10a and 10c can be formed.

  Although the guide member 11 is configured by a single resin member, it may be branched to the left and right, and each may be independently fixed to the wall surface in the unit case 1. Moreover, you may abbreviate | omit the wall part 11c. Furthermore, the fixed shaft 15 is not limited to a circular cross section, and any shaft that can reinforce the guide member 11 may be used. The fixing shaft 15 may be omitted as long as the tips of the guide blade portions 11b1 and 11b2 can be fixed to the wall of the unit case 1 more firmly. Further, in the case where the guide blade portions 11b1 and 11b2 are configured separately from the fixed shaft 15, if the guide blade portions 11b1 and 11b2 are brought into contact with a part of the fixed shaft 15, the vibration of the guide member is fixed. Can be absorbed by the shaft.

  Furthermore, the guide blades 11b1 and 11b2 of the guide member 11 and the fixed shaft are integrally formed of the same material, but the fixed shaft 15 may be made of metal. Furthermore, in FIG. 4 to be used, the guide wing portions 11b1 and 11b2 and the fixed shaft 15 may be separated. In the case of this separate body, the claw portions integral with the guide blade portions 11b1 and 11b2 are fitted into the fitting holes formed in the fixed shaft 15, and the fixed shaft 15 and the guide blade portions 11b1 and 11b2 are fitted. You may fix by the joint fixing | fixed part 11b3 and 11b4.

  In this case, since the guide wing portions 11b1 and 11b2 can be easily replaced by the attachment and detachment at the fitting and fixing portions 11b3 and 11b4, it is easy to cope with the specification change of the vehicle air conditioner. Next, it is desirable to form the surface of the guide wing portion smoothly in a curved shape, but dimple-like irregularities may be formed in order to reduce the ventilation resistance or adjust the wind direction.

DESCRIPTION OF SYMBOLS 1 Unit case 3 Heat exchanger for heating 4 Heat exchanger for cooling 4a Outlet air surface 6 Air mix door 10a, 10c Corner warm air path 11 Guide member 11a, 11a1, 11a2 Head part 11b1, 11b2 Guide blade part 91, 92 Step

Claims (12)

A unit case (1) forming an air passage through which air flows;
A cooling heat exchanger (4) disposed across the cold air passage in the unit case (1) and cooling air;
A heating heat exchanger (3) disposed on the downstream side of the cooling heat exchanger (4) for heating air;
The cooling air provided between the cooling heat exchanger (4) and the heating heat exchanger (3) and bypassing the heating heat exchanger (3) in the unit case (1) and the heating An air mix door (6) that adjusts the air volume ratio with the hot air that has passed through the heat exchanger (3),
Air outlets (21, 7, 81, 82) that are provided in the unit case (1) and blown out the conditioned air, the temperature of which is adjusted by the air mix door (6), to a plurality of parts in the passenger compartment.
A unit with a narrow left and right width that is provided on a wall portion of the unit case (1) on the downstream side of the cooling heat exchanger (4) of the unit case (1) and houses the cooling heat exchanger (4). Step portions (91, 92) that connect the case portion and the unit case portion having a wide left-right width, and expand the left-right width more than the cold air passage,
Corner hot air passages (10a, 10c) that are formed at the left and right corners adjacent to the stepped portions (91, 92) and through which part of the hot air that has passed through the heating heat exchanger (3) flows,
Provided on the downstream side of the cooling heat exchanger (4), the cold air that has passed through the cooling heat exchanger (4) is branched left and right and guided toward the corner hot air passages (10a, 10c). A vehicle air conditioner comprising: a guide member (11) that performs the operation.   The guide member (11) includes a head (11a) provided on the cooling heat exchanger (4) side, and guide wings (11b1, 11b2) extending left and right from the head (11a). The vehicle air conditioner according to claim 1, wherein   The guide member (11) has a wall portion (11c) coupled to the head portion (11a), and a wall surface of the unit case (1) by a fixed shaft (15) passing through the wall portion (11c). The vehicle air conditioner according to claim 2, wherein the vehicle air conditioner is supported by the vehicle.   The vehicle air conditioner according to claim 3, wherein the guide wing portions (11b1, 11b2) are configured integrally with the fixed shaft (15).   The vehicle air conditioner according to claim 4, wherein the guide member (11) is formed of an integral resin molded product together with the fixed shaft (15).   4. The vehicle air conditioner according to claim 3, wherein the guide wing portion (11 b 1, 11 b 2) is configured separately from the fixed shaft (15) and contacts the fixed shaft (15).   The said guide wing | blade part (11b1, 11b2) is extended from the said head (11a) toward the wall surface of the said unit case (1) in the shape of a curve. The vehicle air conditioner according to one item.   The said guide wing | blade part (11b1, 11b2) is extended toward the wall surface of the said unit case (1) in the shape of a broken line from the said head (11a), The any one of Claim 2 to 6 characterized by the above-mentioned. The vehicle air conditioner according to one item.   The head includes a pair of heads (11a1, 11a2), and the guide wings (11b1, 11b2) extend from the pair of heads (11a1, 11a2) to the left and right sides of the unit case (1). The vehicle air conditioner according to any one of claims 2 to 8, wherein the vehicle air conditioner extends toward a wall surface of the vehicle.   The vehicle according to any one of claims 2 to 9, wherein openings (11h1, 11h2) through which the cold air flows are formed in the guide wing portions (11b1, 11b2). Air conditioner.   The foot opening (26) which blows off wind to the passenger | crew's feet is formed in the downstream of the said heat exchanger (3) for heating in the said unit case (1) from Claim 1 characterized by the above-mentioned. The vehicle air conditioner according to claim 10.   The unit case (1) above the stepped portions (91, 92) includes a center face outlet (7) and side face outlets (81, 82) for blowing conditioned air into the vehicle compartment, and a defroster outlet. The vehicle air conditioner according to any one of claims 1 to 11, wherein the outlet (21) is open.

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