JP4957679B2 - Air conditioning unit for vehicle air conditioner and method for manufacturing air conditioning unit for vehicle air conditioner - Google Patents

Description

The present invention relates to an air conditioning unit and its manufacturing how to blow conditioned air into the vehicle interior in a vehicle air conditioner.

  An air conditioning unit that blows conditioned air into a vehicle interior in a vehicle air conditioner generally forms an outer shell and an air conditioning unit case (hereinafter referred to as a case) that forms an air passage for indoor air. It is configured.

  Further, in this case (in the air passage), an evaporator of a vapor compression refrigeration cycle, which is a cooling heat exchanger for cooling the air blown from the blower, and the cold air cooled by this evaporator, Components such as a heat exchanger for air conditioning such as a heater core, which is a heat exchanger for heating that reheats cooling water as a heat source, are attached.

  However, in this type of air conditioning unit, there are restrictions on the shape and physique due to vehicle mounting, so it is difficult to form a sufficiently large air passage in the case. For this reason, the air flow configuration and the ventilation resistance in the air passage are changed only by slightly changing the mounting position of the heat exchanger for air conditioning or the like, and the temperature and the air volume of the air blown into the passenger compartment are greatly changed.

Therefore, for example, like the air conditioning unit described in Patent Document 1, a configuration in which an attachment portion is formed on the side wall portion in the case, and a component device such as a heat exchanger for air conditioning is attached to the attachment portion and supported and fixed. It has been adopted.
JP 2006-82694 A

  By the way, in recent years, the need for cost reduction for vehicle air conditioners has increased, and as a means to meet this need, the common use of air-conditioning unit mounting parts has been studied. For example, in order to demonstrate the same cooling performance in a vehicle air conditioner to which a refrigeration cycle using different refrigerants is applied, the case other than the evaporator of the air conditioning unit and other mounted parts are shared, and only the evaporator is changed A means to do this is conceivable.

  However, for a specific air conditioning unit, for example, a narrow shape evaporation whose width in the main flow direction is narrower than a reference shape evaporator (reference shape heat exchanger) designed to fit this specific air conditioning unit. When the air conditioner (narrow-shaped heat exchanger) is attached, as described above, the temperature of the air blown into the passenger compartment and the change in air volume may occur, and the air conditioning feeling of the passenger may change.

  As a result, in order to improve the air conditioning feeling, the shape of the case (air passage) or the tuning of the control parameters needs to be performed again, which hinders cost reduction.

  In view of the above points, the first object of the present invention is to provide an air conditioning unit of a vehicle air conditioner that can suppress a change in air conditioning feeling even when a heat exchanger for air conditioning having a different shape is mounted. .

  In addition, a second object of the present invention is to provide a method for manufacturing an air conditioning unit of a vehicle air conditioner capable of mounting a heat exchanger for air conditioning having a different shape without causing a change in air conditioning feeling.

In order to achieve the above-mentioned object, the invention according to claim 1 forms an air passage through which air flows, an attachment portion (2a, 2b) for attaching a heat exchanger for air conditioning, and an opening for blowing air into the vehicle interior. The width dimension in the mainstream flow direction (A) of the air is larger than the case (2) in which (11, 12, 13) is formed and the reference shape heat exchanger (5 ') having a shape that fits the mounting portion (2a). The narrow-shaped heat exchanger (5) formed short and the air that is disposed adjacent to the downstream side of the air flow with respect to the narrow-shaped heat exchanger (5) and flows out of the narrow-shaped heat exchanger (5). An air flow adjusting member (6, 61, 62) for adjusting the flow form of
When the air flow adjusting member (6, 61, 62) and the narrow heat exchanger (5) are arranged adjacent to each other as a heat exchanger structure (7),
The air flow adjusting member (6, 61, 62) has a blowing angle of air blown from the heat exchanger structure (7) when the heat exchanger structure (7) is attached to the attachment portion (2a). It is formed so as to be equivalent to the blowing angle of the air blown from the reference shape heat exchanger (5 ′) when the reference shape heat exchanger (5 ′) is attached to the attachment portion (2a). The flow adjusting member (6, 61, 62) blows out the air blown into the vehicle compartment from the opening (11, 12, 13) when the heat exchanger structure (7) is attached to the attachment portion (2a). The temperature and the blown air volume are the blown temperature and the blown air volume of the air blown into the vehicle compartment from the opening (11, 12, 13) when the reference shape heat exchanger (5 ′) is attached to the attachment part (2a). to the air conditioning unit of the vehicle air-conditioning system that is formed so as to be equivalent to Features .

  According to this, the air flow adjusting member (6, 61, 62) and the narrow heat exchanger (5) are arranged adjacent to the mounting portion (2a) of the case (2), that is, heat exchange. The temperature and amount of air blown out from the opening (11, 12, 13) when the vessel structure (7) is attached, and the reference shape heat exchanger (5 ′) are attached. Since the blowing temperature and the blown air volume of the air blown into the vehicle interior from the openings (11, 12, 13) are equal, the air volume change and temperature change of the air blown into the vehicle interior are unlikely to occur.

  Therefore, it is possible to suppress changes between the air conditioning feeling when the heat exchanger structure (7) is attached to the case (2) and the air conditioning feeling when the reference shape heat exchanger (5 ') is attached.

  Furthermore, in order to improve the air conditioning feeling, there is no need to re-tune the shape of the case (2) (air passage) or the tuning of control parameters, etc., and different reference shapes for specific air conditioning units The heat exchanger (5 ') and the narrow-shaped heat exchanger (5) can be used properly, and the case (2) other than the heat exchanger for air conditioning and other mounted parts are shared, and the vehicle air conditioner The cost can be reduced.

  Note that “equivalent” in the present invention does not only mean that they are completely the same, but those that differ slightly due to manufacturing errors and assembly errors are also included within the scope of the term “equivalent”. .

  In addition, as the “blowing temperature” of the air blown out from the opening (11, 12, 13) into the vehicle interior, when the air blown out from the opening (11, 12, 13) has a temperature distribution The average air temperature can be adopted, and the “blowing air volume” of the air blown out from the opening (11, 12, 13) into the vehicle compartment is the total air volume blown out from the opening (11, 12, 13). Can be adopted.

  Furthermore, if the openings (11, 12, 13) are provided at a plurality of locations, the blowing temperature of the air blown from the respective openings (11, 12, 13) and the amount of blown air are made equal. Good.

Further, as in the invention described in claim 2, in the air conditioning unit of the vehicle air conditioner described in claim 1 , the air flow adjusting member (6, 61, 62) is provided in the heat exchanger in the mounting portion (2a). The flow form of the air flowing through the air passage when the structure (7) is attached is formed to be the same as the flow form when the reference shape heat exchanger (5 ′) is attached to the attachment portion (2a). It may be.

  According to this, the blowout temperature and the blown-out air amount of the air blown into the vehicle compartment from the openings (11, 12, 13) when the heat exchanger structure (7) is attached, and the reference shape heat exchanger (5 It is possible to easily equalize the temperature and the amount of air blown out from the opening (11, 12, 13) when the ') is attached.

Further, as in the invention described in claim 3, in the air conditioning unit of the vehicle air conditioner described in claim 1 or 2 , the air flow adjusting member (6, 61, 62) includes the heat exchanger structure (7). ) May be formed to be equivalent to the ventilation resistance of the reference shape heat exchanger (5 ′).

  According to this, the blowout temperature and the blown-out air amount of the air blown into the vehicle compartment from the openings (11, 12, 13) when the heat exchanger structure (7) is attached, and the reference shape heat exchanger (5 It is possible to easily equalize the temperature and the amount of air blown out from the opening (11, 12, 13) when the ') is attached.

Further, as in the invention according to claim 4, in the air conditioning unit of the vehicle air conditioner according to any one of claims 1 to 3 , the heat exchanger structure (7) is attached to the mounting portion (2a). The position of the air outlet surface of the heat exchanger structure (7) when attached is that of the reference shape heat exchanger (5 ') when the reference shape heat exchanger (5') is attached to the attachment portion (2a). It may be equivalent to the position of the air outlet surface.

  According to this, even if it uses properly the reference | standard shape heat exchanger (5 ') and narrow shape heat exchanger (5) from which a shape differs, it can attach to the attaching part (2a) of a case (2) easily. . Furthermore, since the position of the air outlet surface does not change, the blowing temperature and the blowing air volume of the air blown out from the opening (11, 12, 13) into the vehicle compartment can be easily made equal.

In the air conditioning unit for a vehicle air conditioner according to any one of claims 1 to 4, as in the invention according to claim 5 , the air flow adjusting member (6, 61, 62) is narrow. Ventilation holes (6a, 61a) that are formed by plate-like members arranged in parallel to the air outlet surface of the shape heat exchanger (5) and allow the air flowing out from the narrow shape heat exchanger (5) to pass therethrough. 61b, 62a, 62b), and the ventilation holes (6a, 61a, 61b, 62a, 62b) are formed so that the outside ventilation area is larger than the inside in the ventilation hole arrangement range. Also good.

  According to this, as will be described later in the embodiment, the flow direction of the air flowing out from the heat exchanger structure (7) and the flow direction of the air flowing out from the reference shape heat exchanger (5 ′) can be easily made. Therefore, the air flow form when the heat exchanger structure (7) is attached and the air flow form when the reference shape heat exchanger (5 ′) is attached are equivalent, The blowing temperature and the blowing air volume of the air blown into the vehicle compartment from the openings (11, 12, 13) can be easily made equal.

Moreover, in the invention of claim 6, while forming the air passage through which air flows, the attachment part (2a, 2b) which attaches the heat exchanger for air conditioning, and the opening part (11, 12, 13) is a method of manufacturing an air conditioning unit of a vehicle air conditioner including a case (2) formed with:
A narrow-shaped heat exchanger (5) in which the width dimension in the main flow direction of air is shorter than the reference-shaped heat exchanger (5 ') having a shape suitable for the mounting portion (2a), and the narrow-shaped heat An air flow adjusting member (6, 61, 62) that is arranged adjacent to the downstream side of the air flow with respect to the exchanger (5) and adjusts the flow form of the air that flows out of the narrow heat exchanger (5) is attached to the mounting portion. (2a) having an attaching process for attaching,
When the narrow heat exchanger (5) and the air flow adjusting member (6, 61, 62) are arranged adjacent to each other as a heat exchanger structure (7),
In the attaching step, the air blown from the heat exchanger structure (7) when the heat exchanger structure (7) is attached to the attachment portion (2a ) as the air flow adjusting member (6, 61, 62) . The blowing angle is formed to be equal to the blowing angle of air blown from the reference shape heat exchanger (5 ′) when the reference shape heat exchanger (5 ′) is attached to the attachment portion (2a), Thereby, the blowout temperature and the blown-out air volume blown out from the openings (11, 12, 13) into the vehicle compartment when the heat exchanger structure (7) is attached to the attachment portion (2a) are the reference shape heat. What was formed so that it might become equivalent to the blowing temperature and the amount of blowing air of the air blown out from the opening (11, 12, 13) when the exchanger (5 ′) was attached to the attachment portion (2a) the manufacturing method of the air conditioning unit of the vehicle air-conditioning system and feature the use of

According to this, the air conditioning unit of the vehicle air conditioner according to the first aspect of the present invention can be manufactured. That is, it is possible to provide a method for manufacturing an air conditioning unit of a vehicle air conditioner that can be mounted with a heat exchanger for air conditioning having a different shape without causing a change in air conditioning feeling, and to reduce the cost of the vehicle air conditioner. Can do.

Moreover, in the manufacturing method of the air conditioning unit of the vehicle air conditioner according to claim 6, as in the invention according to claim 7 , in the mounting step, after the heat exchanger structure (7) is formed, the mounting portion The heat exchanger structure (7) may be attached to (2a).

  According to this, since it can attach in the state integrated with the air flow adjustment member (6, 61, 62) and the narrow shape heat exchanger (5), it attaches easily with respect to an attachment part (2a). Can do.

Moreover, in the manufacturing method of the air conditioning unit of the vehicle air conditioner according to claim 6, as in the invention according to claim 8, in the attaching step, the air flow adjusting member (6, 61, After attaching 62), you may attach a narrow shape heat exchanger (5) to an attaching part (2a).

  The air flow adjusting member (6, 61, 62) has a structure that is easy to attach to the attachment portion (2a) because the degree of freedom in design is high in the selection or shape of the material with respect to the narrow heat exchanger (5). be able to. Therefore, if the narrow heat exchanger (5) is attached to the attachment portion (2a) after the air flow adjusting member (6, 61, 62) is attached to the attachment portion (2a), the narrow shape heat will be reduced. Complicating the shape and structure of the exchanger (5) can be avoided.

Moreover, in the manufacturing method of the air conditioning unit of the vehicle air conditioner according to claim 6, as in the invention according to claim 9, in the mounting step, the narrow shape heat exchanger (5) is mounted on the mounting portion (2a). After attaching the air flow adjusting member (6, 61, 62) to the attaching portion (2a).

  According to this, for example, in the configuration described in the fifth embodiment to be described later, the narrow heat exchanger (5) and the air flow adjusting member (6, 61, 62) are attached to the mounting portion (2a). Easy to install.

Further, as in the invention described in claim 10, in the air conditioning unit of the vehicle air conditioner described in claim 1 , the air flow adjusting member (6) is provided in the heat exchanger structure (7) in the mounting portion (2a). ) When the reference shape heat exchanger (5 ′) is attached to the attachment portion (2a) when the air velocity distribution of the air passing through the heat exchanger structure (7) is attached to the attachment portion (2a). It may be formed to be equivalent to the wind speed distribution of the air passing through ').

  According to this, the blowout temperature and the blown-out air amount of the air blown into the vehicle compartment from the openings (11, 12, 13) when the heat exchanger structure (7) is attached, and the reference shape heat exchanger (5 It is possible to easily equalize the temperature and the amount of air blown out from the opening (11, 12, 13) when the ') is attached.

  In addition, the code | symbol in the bracket | parenthesis of each means described in this column and the claim shows the correspondence with the specific means as described in embodiment mentioned later.

(First embodiment)
A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a schematic cross-sectional view of an air conditioning unit 1 (second air conditioning unit) of a vehicle air conditioner according to this embodiment. FIG. 2 is an air conditioning unit of a vehicle air conditioner that is a comparative example of this embodiment. It is typical sectional drawing of 1 '(1st air conditioning unit). In FIG. 2, the same or equivalent parts as in FIG.

  The air conditioning units 1, 1 ′ blow air conditioned air whose temperature and humidity have been adjusted into the vehicle interior, and are arranged inside the instrument panel (instrument panel) at the forefront of the vehicle interior. The air conditioning units 1 and 1 ′ are configured to have an outer shell and a case 2 that forms an air passage for indoor blown air that is blown toward the vehicle interior.

  The case 2 has a certain degree of elasticity and is formed of a resin (for example, polypropylene) that is excellent in strength. Further, in the case 2, an attachment portion for attaching each component device constituting the air conditioning unit is formed. For example, as the mounting portions 2a and 2b of the heat exchangers 5 ', 7 and 8 for air conditioning which will be described later, protruding portions or step portions having a shape matching the outer shape of the heat exchangers 5', 7 and 8 for air conditioning Is formed.

Further, the case 2 has a split surface in the vehicle vertical direction at a substantially central portion in the vehicle width direction, and can be divided into two split portions on the left and right by this split surface. The two left and right split portions, while accommodating the various component devices of which constitute the air conditioning unit 1, 1 'in its interior, a metal bar next-lip, are joined together by fastening means such as screws.

  An air suction port 3 is provided at the most upstream part of the air flow of the case 2. An inside / outside air switching box (not shown) is arranged upstream of the air suction port 3, and the air introduced into the case 2 through the suction port 3 by the inside / outside air switching box is converted into the inside air (vehicle It is switched to room air) or outside air (vehicle exterior air).

  An electric blower 4 that blows air toward the passenger compartment is disposed on the downstream side of the air flow of the air suction port 3. The blower 4 blows air by rotating a known centrifugal multiblade fan 4a by an electric motor 4b.

  Moreover, as shown in FIG. 1, in the air conditioning unit 1 of this embodiment, the evaporator 5 which is a heat exchanger for cooling which cools vehicle interior blowing air to the downstream side of the air flow of the blower 4, and the evaporator 5 An evaporator structure 7 (heat exchanger structure) in which a ventilation resistance plate 6 that is an air flow adjusting member that adjusts the flow form of the air that flows out from the apparatus is disposed adjacent thereto is disposed.

  In this embodiment, this evaporator structure 7 is attached to the attachment part 2a of the case 2 and supported and fixed as one of the heat exchangers for air conditioning. The details of the evaporator structure 7 will be described later.

  A heater core 8 is arranged on the downstream side of the air flow of the evaporator structure 7. The heater core 8 is a heating heat exchanger that reheats the air (cold air) that has passed through the evaporator structure 7 using engine cooling water as a heat source. Therefore, this heater core 8 is also one of the heat exchangers for air conditioning, and is attached and supported and fixed to the attachment portion 2b of the case 2.

  A bypass passage 9 is formed on the downstream side of the air flow of the evaporator structure 7 and on the side of the heater core 8 in the case 2. The bypass passage 9 is a passage formed in parallel to the heater core 8 so that air (cold air) after passing through the evaporator structure 7 flows around the heater core 8.

  An air mix door 10 is disposed between the evaporator structure 7 and the heater core 8. The air mix door 10 is adjusted in opening degree by a servo motor (not shown) or manually, so that the amount of air passing through the heater core 8 (arrow) out of the air (cold air) after passing through the evaporator structure 7 (arrow) The air volume ratio between B) and the amount of air passing through the bypass passage 9 (arrow C) is adjusted.

  Further, the hot air flowing in the direction of arrow B and passing through the heater core 8 and the cold air flowing in the direction of arrow C and passing through the bypass passage 9 are mixed on the downstream side of the heater core 8 and the bypass passage 9 and blown into the vehicle interior. The Accordingly, the air temperature in the passenger compartment is adjusted by adjusting the air volume ratio. That is, the air mix door 10 constitutes temperature adjusting means for adjusting the temperature of the air blown into the vehicle interior.

  At the most downstream part of the air passage of the case 2, a defroster opening 11 for blowing the conditioned air toward the front window glass of the vehicle, and a face opening for blowing the conditioned air toward the occupant's face (upper body) 12 and a total of three types of openings, that is, a foot opening 13 for blowing conditioned air toward the foot of the passenger.

  The defroster opening 11 is connected to a defroster outlet on the upper surface of the instrument panel via a defroster duct (not shown), and the face opening 12 is connected to a face outlet on the occupant side of the upper surface of the instrument panel via a face duct (not shown). Furthermore, the foot opening 13 is connected to a foot air outlet disposed in the vicinity of the occupant's foot through a foot duct (not shown), and conditioned air is blown out from each air outlet into the vehicle interior.

  Moreover, the defroster door 14, the face door 15, and the foot door 16 are rotatably arrange | positioned at the upstream part of these opening parts 11-13, respectively. These doors 14 to 16 are opened and closed by a common servo motor (not shown) or manual operation via a link mechanism (not shown).

  For example, in the face mode in which the conditioned air is blown toward the occupant's upper body through the face opening 12, only the face door 15 is opened, and at the same time the conditioned air is blown toward the occupant's upper body through the face opening 12. In the bi-level mode in which conditioned air is blown out toward the feet of the occupant through the foot opening 13, the face door 15 and the foot door 16 are opened.

  In the foot mode in which the conditioned air is blown mainly from the foot opening 13 toward the occupant's feet, the foot door 16 opens the foot opening 13 while the defroster door 14 slightly opens the defroster opening 11. . 1 and 2 show a state of the foot / defroster mode in which the defroster door 14 and the foot door 16 are simultaneously opened.

  On the other hand, as shown in FIG. 2, in the air conditioning unit 1 ′ of the comparative example, the evaporator structure 7 is not provided, and the evaporator 5 ′ is attached to the case 2 as one of the heat exchangers for air conditioning. It is attached to the part 2a and supported and fixed. The configuration of the air conditioning unit 1 ′ of other comparative examples is exactly the same as the configuration of the air conditioning unit 1 of the present embodiment.

  Next, the evaporator structure 7 of this embodiment and the evaporator 5 'of the comparative example will be described. As described above, the evaporator structure 7 has the evaporator 5 and the ventilation resistance plate 6 disposed adjacent to each other, and the evaporator 5 and the evaporator 5 'of the comparative example are not shown in the well-known vapor compression type refrigeration. It is one of the refrigeration cycle components constituting the cycle.

  Therefore, the evaporators 5 and 5 ′ are common in that they exhibit a cooling function for cooling the blown air blown by the blower 4 by evaporating the low-pressure refrigerant flowing into the evaporator 5 and exhibiting an endothermic effect. As shown in FIGS. 1 and 2, the external shapes are different from each other.

  Specifically, the outer shape of the evaporator 5 ′ of the comparative example is a shape that fits the attachment portion 2 a of the case 2 as shown in FIG. 2. On the other hand, the evaporator 5 of the present embodiment is formed to have a shorter width dimension (thickness dimension) in the air main flow direction (arrow A direction) than the evaporator 5 ′ of the comparative example. Therefore, in this embodiment, the evaporator 5 'corresponds to the reference shape heat exchanger described in the claims, and the evaporator 5 corresponds to the narrow shape heat exchanger.

  The evaporators 5, 5 ′ are constituted by well-known fin-and-tube heat exchangers, and have a rectangular shape that extends substantially perpendicularly to the main flow direction (arrow A direction) of the air flowing in the case 2. The air inlet surface and the air outlet surface are formed.

  The ventilation resistance plate 6 will be described with reference to FIG. FIG. 3 is an external perspective view of the evaporator structure 7 as viewed from the air outlet surface side. As shown in FIG. 3, the ventilation resistance plate 6 is a resin plate-like member arranged in parallel to the air outlet surface of the evaporator 5, and is formed in a rectangular shape so as to cover the entire area of the air outlet surface. Has been. In this embodiment, the ventilation resistance plate 6 is made of the same material as that of the case 2, but may be made of metal.

  The width dimension (thickness dimension) of the airflow direction of the ventilation resistance plate 6 in the main flow direction (arrow A direction) is the air outlet surface of the evaporator structure 7 (specifically, when the evaporator structure 7 is attached to the attachment portion 2a). The position of the air outlet surface of the ventilation resistance plate 6 is formed to be equivalent to the position of the air outlet surface of the evaporator 5 ′ when the evaporator 5 ′ is attached to the attachment portion 2a.

  Further, a plurality of substantially circular ventilation holes 6 a through which the air flowing out from the evaporator 5 passes are formed on the plate surface of the ventilation resistance plate 6. This ventilation hole 6a is arrange | positioned in the whole region of the plate | board surface of the ventilation resistance board 6, and is arrange | positioned so that the ventilation area of an outer side may become large rather than an inner side.

  In the present embodiment, specifically, the outside ventilation area is made wider than the inside by increasing the number of ventilation holes 6a formed on the outside with respect to the ventilation holes 6a formed on the inside. Further, the total opening area (total ventilation area) of the plurality of ventilation holes 6a is adjusted so that the ventilation resistance of the evaporator structure 7 is equal to the ventilation resistance of the evaporator 5 '.

  Next, the manufacturing method of the air conditioning unit 1 of this embodiment is demonstrated. First, in the present embodiment, the state in which the evaporator 5 and the ventilation resistance plate 6 are integrated in advance as the evaporator structure 7 is attached to the attachment portion 2 a of the case 2. Specifically, the ventilation resistance plate 6 is locked to the evaporator 5 by a claw-shaped locking portion (not shown) formed on the ventilation resistance plate 6 to be integrated.

  Of course, the evaporator 5 and the ventilation resistance plate 6 may be integrated by fastening means such as bolting and clipping or by adhesion. Furthermore, when the metal ventilation resistance board 6 is employ | adopted, you may integrate by joining means, such as welding and brazing.

  And this evaporator structure 7 is inserted in the attaching part 2a of the divided | segmented case 2, and also the case 2 in the state which attached other components to each attaching part of the divided | segmented case 2 The two right and left divided parts are fastened. Thereby, the air conditioning unit 1 of this embodiment is manufactured.

  In the present embodiment, the evaporator structure 7 can be supported and fixed simply by being inserted into the mounting portion 2a of the case 2. However, of course, the evaporator structure 7 is evaporated with respect to the mounting portion 2a of one divided portion. You may make it fasten the division parts of case 2 in the state which fixed the container structure 7 by bolting etc. As shown in FIG.

  Next, the operation of the air conditioning unit 1 of the present embodiment having the above configuration will be described. When the vehicle air conditioner is operated in the operating state of the vehicle running engine (not shown), the blower 4 is rotationally driven by the control signal output from the air conditioner control device, the opening degree of the air mix door 10 is adjusted, and each opening The doors 14 to 16 on the upstream side of the parts 11 to 13 are opened and closed, and the above-described refrigeration cycle is activated.

  The blown air blown from the blower 4 is cooled by the evaporator structure 7, and a part thereof is reheated by the heater core 8 according to the opening degree of the air mix door 10. The hot air that has passed through the heater core 8 and the cold air that has passed through the bypass passage 9 are mixed on the downstream side of the heater core 8 and the bypass passage 9 to form temperature-conditioned air.

  The conditioned air whose temperature has been adjusted flows to the respective openings 11 to 13 in accordance with the open / closed state of the doors 14 to 16 and is blown into the vehicle interior from the respective outlets, whereby the vehicle interior is air-conditioned. . The same applies to the operation of the air conditioning unit 1 ′ of the comparative example.

  Furthermore, in this embodiment, by adopting the evaporator structure 7 having the above-described configuration, a flow form of air flowing through the air passage of the air conditioning unit 1 and a flow form of air flowing through the air passage of the air conditioning unit 1 ′ of the comparative example. Can be made equivalent to the blowout temperature and the blowout amount of the air blown out from the openings 11 to 13 into the vehicle compartment via the blowout openings, so that the passengers of the air conditioning unit 1 and the air conditioning unit 1 ' The air conditioning feeling can be made equivalent.

  This will be described with reference to FIG. FIG. 4 is a numerical analysis simulation result showing the air flow form in the air passage corresponding to the periphery of the portion D in FIGS. 1 and 2 obtained by the study of the present inventors. 4A shows a flow form of air flowing through the air passage of the comparative example, FIG. 4B shows a flow form of air flowing through the air passage of the present embodiment, and FIG. The flow form of the air when the ventilation resistance board 6 is abolished from the air conditioning unit 1 of this embodiment is shown.

  1 and 2 are schematic cross-sectional views for explaining the overall configuration of the air conditioning units 1 and 1 ', but FIG. 4 is a shape substantially equivalent to the actual air conditioning units 1 and 1'. The numerical analysis simulation result is shown. Accordingly, the cross-sectional shapes shown in FIGS. 1, 2 and 4 are slightly different. Also, the thick broken line arrows in FIG. 4 indicate typical flow directions of the air flowing out from the evaporators 5, 5 'and the evaporator structure 7, respectively.

  As is apparent from FIGS. 4A and 4C, when the ventilation resistance plate 6 is eliminated and only the evaporator 5 is attached to the case 2, the air flow form on the downstream side of the evaporator 5 changes to the downstream of the evaporator 5 ′. It changes with respect to the air flow form of the side. On the other hand, as is clear from FIGS. 4A and 4B, by attaching the evaporator structure 7 to the case 2, the air flow form downstream of the evaporator structure 7 is changed to the evaporator 5 ′. It can be equivalent to the downstream air flow configuration.

  That is, by adjusting the total ventilation area of the plurality of ventilation holes 6a of the ventilation resistance plate 6, the ventilation resistance of the evaporator structure 7 as a whole and the ventilation resistance of the evaporator 5 ′ are made equal, and further, the ventilation resistance plate By forming the ventilation area on the outer peripheral side wider than the inner peripheral side in the ventilation hole arrangement range of 6, the direction of the cold air flowing out from the evaporator structure 7 and the direction of the cold air flowing out from the evaporator 5 ′ are equivalent. And

  Thereby, the flow form of the air flowing through the air passage of the air conditioning unit 1 can be made equivalent to the flow form of the air flowing through the air passage of the air conditioning unit 1 ′ of the comparative example. The air blowing temperature and the blown air volume blown from ˜13 can be made equal to the air blowing temperature and the blown air quantity blown from the openings 11 to 13 in the air conditioning unit 1 ′. As a result, it is possible to suppress changes in the air conditioning feeling of the occupant when the evaporator structure 7 is attached to the common case 2 and when the evaporator 5 'is attached.

  That is, according to the air conditioning unit 1 of the present embodiment, even if only the evaporators 5 and 5 ′ are changed by sharing the case 2 and other mounted parts with the air conditioning unit 1 ′ of the comparative example, In order to improve the ring, it is not necessary to retune the shape of the case 2 (air passage) or the tuning of control parameters.

  Therefore, the case 2 other than the evaporator and other mounted parts can be shared, and the evaporator 5 ′ which is a reference shape heat exchanger having a different shape and the evaporator 5 which is a narrow shape heat exchanger can be used properly. Cost reduction of the vehicle air conditioner can be achieved.

  In addition, about the manufacturing method of the air conditioning unit 1 of this embodiment mentioned above, in other words, it can express as a mounting method of the evaporator (heat exchanger) which attaches the evaporators 5 and 5 'with respect to the attaching part 2a. . In other words, in the present embodiment, either one of the first attachment process for attaching the evaporator 5 ′ as the reference shape heat exchanger and the second attachment process for attaching the evaporator structure 7 is selected. It adopts an evaporator mounting method that can be used.

  Therefore, with respect to the case 2, the evaporator 5 ′ which is a reference shape heat exchanger having a different shape and the evaporator 5 which is a narrow shape heat exchanger can be used properly.

  In this embodiment, as a method of using the case 2 other than the evaporator and other mounted components, an air conditioning unit 1 ′ (first air conditioning unit) to which an evaporator 5 ′ that is a reference shape heat exchanger is attached is formed. And a method of using the air conditioning unit 1 (second air conditioning unit) to which the evaporator structure 7 is attached.

  Therefore, when forming the air conditioning units 1, 1 ′, the case 2 can be shared, and the cost of the vehicle air conditioner can be reduced.

(Second Embodiment)
Although the example which employ | adopted the ventilation resistance board 6 was demonstrated in 1st Embodiment, the ventilation resistance board 61 shown in FIG. 5 is employ | adopted in this embodiment. Specifically, the ventilation resistance plate 61 increases the ventilation area of the ventilation hole 61b formed on the outer side with respect to the circular ventilation hole 61a formed on the inner side, so that the ventilation area outside the inner side is increased. Is wide.

  Other configurations are the same as those of the first embodiment. Even if such a ventilation resistance plate 61 is adopted, the flow form of air flowing through the air passage of the air conditioning unit 1 of the present embodiment and the flow form of air flowing through the air passage of the air conditioning unit 1 ′ of the comparative example are made equal. Therefore, the same effect as that of the first embodiment can be obtained.

(Third embodiment)
Although the example which employ | adopted the ventilation resistance board 6 was demonstrated in 1st Embodiment, the ventilation resistance board 62 shown in FIG. 6 is employ | adopted in this embodiment. Specifically, the ventilation resistance plate 62 has the ventilation holes 62a and 62b formed in a lattice shape, and the ventilation area of the ventilation holes 62b formed outside the rectangular ventilation holes 62a formed inside. By enlarging, the outside ventilation area is wider than the inside.

  Other configurations are the same as those of the first embodiment. Even if such a ventilation resistance plate 62 is adopted, the flow form of air flowing through the air passage of the air conditioning unit 1 of the present embodiment and the flow form of air flowing through the air passage of the air conditioning unit 1 ′ of the comparative example are made equal. Therefore, the same effect as that of the first embodiment can be obtained.

(Fourth embodiment)
In the first embodiment, the ventilation resistance plate 6 is disposed adjacent to the downstream side of the air flow (air outlet surface side) with respect to the evaporator 5 to form the evaporator structure 7. As shown in FIG. 7, the ventilation resistor plate 6 is disposed adjacent to the evaporator 5 on the upstream side (air inlet side) of the air flow to form the evaporator structure 7.

  Other configurations are the same as those of the first embodiment. Even if such an arrangement is adopted, the flow form of air flowing through the air passage of the air conditioning unit 1 of the present embodiment and the flow form of air flowing through the air passage of the air conditioning unit 1 ′ of the comparative example can be made equivalent. Therefore, the same effect as the first embodiment can be obtained.

(Fifth embodiment)
In the first embodiment, the ventilation resistance plate 6 is disposed adjacent to the downstream side of the air flow (air outlet surface side) with respect to the evaporator 5 to form the evaporator structure 7. 8, the ventilation resistance plate 6 is divided into two ventilation resistance plates 6 b and 6 c, and the air flow upstream side (air inlet surface side) and the downstream side (air outlet surface side) with respect to the evaporator 5. Are adjacent to each other.

  Other configurations are the same as those of the first embodiment. Even if such an arrangement is adopted, the flow form of air flowing through the air passage of the air conditioning unit 1 of the present embodiment and the flow form of air flowing through the air passage of the air conditioning unit 1 ′ of the comparative example can be made equivalent. Therefore, the same effect as the first embodiment can be obtained.

(Sixth embodiment)
In each of the above-described embodiments, the air flows flowing through the air passages of the air conditioning unit 1 and the air conditioning unit 1 ′ of the comparative example are equivalent, and the air blown out from the openings 11 to 13 into the vehicle interior Although the example made equivalent to the blowout temperature and the blowout air volume has been described, in the present embodiment, as shown in FIG. 9, the wind speed distribution of air passing through the evaporator structure 7 in the air conditioning unit 1 by the ventilation resistance plate 6 . However, an example in which the air-conditioning unit 1 ′ is equivalent to the wind speed distribution of the air passing through the evaporator 5 ′ will be described.

  FIG. 9 is a partial cross-sectional view in the horizontal direction when the air conditioning unit 1 (second air conditioning unit) of the present embodiment is viewed from above the vehicle, and FIG. 10 is an air conditioning unit that is a comparative example of the present embodiment. It is a partial cross section figure of 1 '(1st air conditioning unit) of the horizontal direction. 9 and 10, the same or equivalent parts as those in the first embodiment are denoted by the same reference numerals.

  In the air conditioning unit 1 of the present embodiment and the air conditioning unit 1 ′ of the comparative example, the blower side unit that houses the inside / outside air switching box and the blower 4 is disposed on the passenger seat side of the vehicle instrument panel, and the evaporator structure 7 and The heat exchanger side unit that accommodates the evaporator 5 ′, the heater core 8, and the like is a so-called semi-centered type air conditioning unit that is disposed at the substantially central portion in the vehicle width (left-right) direction inside the vehicle instrument panel.

  In this type of semi-centered type air conditioning unit, the main flow direction A of the blown air blown from the blower 4 is the vehicle width direction (the vehicle left-right direction) immediately before the upstream side of the evaporator 5 ′ or the heat exchanger structure 7. ) In the vehicle longitudinal direction. For this reason, it is easy to produce a wind speed distribution in the air passing through the evaporator 5 ′ or the heat exchanger structure 7.

  For this reason, for example, in the air conditioning unit 1 ′ of FIG. 10, by adopting means such as providing a step portion 21a on the surface of the case 2 that faces the air inlet surface of the evaporator 5 ′, the evaporator 5 ′ The occurrence of wind speed distribution in the air passing through the inside is suppressed.

  In FIG. 10, the stepped portions 21 a are provided at two locations, but the number of the stepped portions 21 a may be singular or may be a plurality of three or more locations. Furthermore, not only means for providing the stepped portion 21a but also means for providing a protruding portion that protrudes toward the evaporator 5 ′ on the surface of the case 2 that faces the air inlet surface of the evaporator 5 ′ may be employed. .

Therefore, in the present embodiment, the ventilation resistance between the air inlet surface of the evaporator structure 7 and the case 2 in the air conditioning unit 1 is the ventilation resistance between the air inlet surface of the evaporator 5 ′ and the case 2 in the air conditioning unit 1 ′. Equivalent ventilation resistance plate 6 is adopted. And the evaporator structure 7 is comprised by arrange | positioning this ventilation resistance board 6 in the air flow upstream of the evaporator 5. FIG.

  More specifically, as shown in FIG. 11, the ventilation resistance plate 6 of the present embodiment has a column portion 6d extending substantially in the vertical direction when mounted on the vehicle, and the front end of the column portion 6d on the front side of the vehicle. Distances L1 and L2 (see FIG. 9) between the step portion 21a of the case 2 and the case 2 are distances L1 ′ and L2 ′ (the air inlet surface of the evaporator 5 ′ and the step portion 21a of the case 2 in the air conditioning unit 1 ′). (See FIG. 10).

  If the ventilation resistance board 6 which has the support | pillar part 6d is employ | adopted in a semi-center-placement type air conditioning unit like this embodiment, the support | pillar part 6d is a vehicle width direction among the mainstream flows (arrow A) of the air ventilated from the blower 4 Therefore, the wind speed distribution of the air passing through the evaporator structure 7 in the air conditioning unit 1 and the wind speed distribution passing through the evaporator 5 'in the air conditioning unit 1' can be made equal.

  That is, the ventilation resistance plate 6 according to the present embodiment functions to make the ventilation resistance to the air flow upstream of the evaporator structure 7 equivalent to the ventilation resistance to the air flow upstream of the evaporator 5 ′. Thereby, in this embodiment, the blowing temperature of the air blown from each opening part 11-13 in the air-conditioning unit 1 and the amount of blowing air are used for the air blown out from each opening part 11-13 in the air-conditioning unit 1 ′. It can be made equal to the blowing temperature and the blowing air volume.

  As a result, when the evaporator structure 7 is attached to the common case 2 and when the evaporator 5 ′ is attached, changes in the air conditioning feeling of the occupant can be suppressed, and the same effect as in the first embodiment. Can be obtained. The ventilation resistance plate 6 of the present embodiment is extremely effective when applied to a semi-centered type air conditioning unit in which the blown air blown from the blower 4 changes direction immediately before the evaporator structure 7 and the evaporator 5 ′. is there.

(Seventh embodiment)
In the above-described embodiments, the detailed configuration of the evaporator 5 ′ for the air conditioning unit 1 ′ of the comparative example is not described. However, in the present embodiment, as the evaporator 5 ′, as shown in FIG. An example in which an exchange fin provided with a louver 53a will be described. FIG. 12 is a schematic front view of the evaporator 5 ′ of the present embodiment, and FIG. 13 is an enlarged EE cross-sectional view of FIG.

  Specifically, the evaporator 5 ′ is disposed between a plurality of tubes 51 through which the refrigerant flows, a tank 52 that distributes and collects refrigerants connected to the ends of the tubes 51, and the adjacent tubes 51. And a plurality of corrugated fins 53 that facilitate heat exchange with air. The corrugated fins 53 are heat exchange fins formed by bending a thin metal plate (for example, aluminum) having excellent heat conductivity into a wave shape.

  Further, on the flat surface of the corrugated fin 53, as shown in FIG. 13, a louver 53a that guides the flow direction of the air passing through the evaporator 5 ′ is integrally cut and raised by, for example, pressing. . The louver 53 suppresses the growth of the temperature boundary layer in the vicinity of the flat surface of the corrugated fin 53 and improves the heat transfer coefficient.

  In addition, since the louver 53 is inclined in the direction opposite to the air flow upstream side and the downstream side, the air flow passing through the evaporator 5 'is flat in the corrugated fins 53 as shown by the broken line arrows in FIG. A flow parallel to the surface and a V-shaped flow guided by the louver 53 are generated. For this reason, as shown by the arrow F, the air blown out from the evaporator 5 ′ is blown out at a predetermined angle θ from the vertical direction with respect to the heat exchange core surface of the evaporator 5 ′.

  Therefore, in the evaporator structure 7 of the air conditioning unit 1 according to the present embodiment, as shown in FIG. 14, the ventilation resistance plate 6 is disposed on the downstream side of the air flow of the evaporator 5. The air blowing angle blown from 7 is made equal to the air blowing angle blown from the evaporator 5 'in the air conditioning unit 1'. FIG. 14 is a schematic cross-sectional view of the evaporator structure 7 of the present embodiment as viewed from the vehicle width direction (the same direction as FIG. 13).

  More specifically, the ventilation resistance plate 6 has a guide plate 6e extending in the vehicle width direction, and the blowing angle of air blown from the evaporator structure 7 is adjusted by the guide plate 6e. Of course, air is blown from the evaporator structure 7 by providing a ventilation hole in the ventilation resistance plate 6 as in the above-described embodiment and tilting the opening direction of the ventilation hole with respect to the heat exchange core surface of the evaporator 5. You may adjust the blowing angle.

  Thereby, in this embodiment, the blowing temperature of the air blown from each opening part 11-13 in the air-conditioning unit 1 and the amount of blowing air are used for the air blown out from each opening part 11-13 in the air-conditioning unit 1 ′. It can be made equal to the blowing temperature and the blowing air volume.

  As a result, even when the louver is provided as the evaporator 5 ′ for the air conditioning unit 1 ′ of the comparative example, the evaporator structure 7 is attached to the common case 2 And the change of a passenger | crew's air-conditioning feeling at the time of attaching evaporator 5 'can be suppressed, and the effect similar to 1st Embodiment can be acquired.

In addition, in the evaporator structure 7 of this embodiment, although the ventilation resistance board 6 is arrange | positioned in the air flow downstream of the evaporator 5, the blowing of the air which blows off from the evaporator structure 7 in the air conditioning unit 1 If the angle and the blowing angle of the air blown from the evaporator 5 ′ in the air conditioning unit 1 ′ can be made equal, as described in the fifth embodiment, a part of the ventilation resistance plate 6 is removed from the evaporator. 5 may be arranged downstream of the air flow.
(Other embodiments)
The present invention is not limited to the above-described embodiment, and can be variously modified as follows.

  (1) In the above-described embodiment, the air conditioning unit 1 is manufactured by attaching the integrated structure as the evaporator structure 7 to the mounting portion 2a of the case 2. However, the manufacturing method of the air conditioning unit 1 is not limited thereto. It is not limited. For example, after attaching the ventilation resistance plate 6 to the attachment part 2a, you may attach the evaporator 5 further.

  Like the above-mentioned embodiment, since the ventilation resistance board 6 can be shape | molded with resin, the protrusion part for a latch, a nail | claw part, etc. for latching to the attaching part 2a can be shape | molded easily. On the other hand, it is difficult to change the shape and structure of the evaporator 5 in a complicated manner, for example, in order to make it common with an air conditioning unit that uses the evaporator 5 as a reference shape heat exchanger.

  Therefore, if the evaporator 5 is attached to the attachment portion 2a after the ventilation resistance plate 6 is attached to the attachment portion 2a, the shape and structure of the evaporator 5 can be prevented from becoming complicated, and the Cost can be reduced.

  For example, after attaching the evaporator 5 to the attachment part 2a, you may attach the ventilation resistance board 6 further. Thereby, for example, in the configuration described in the fifth embodiment, after the narrow heat exchanger 5 is attached to the attachment portion 2a, the ventilation resistance plates 6b and 6c are placed upstream of the narrow heat exchanger 5. If it attaches to the side and the downstream, it will become easy to attach the ventilation resistance plates 6b and 6c.

  (2) In the above-described embodiment, the vapor compression refrigeration cycle evaporator has been described as an example of the heat exchanger for air conditioning, but the heat exchanger for air conditioning is not limited to this. For example, the heater core 8 is also included in the heat exchanger for air conditioning.

  That is, the same effect as that of the above-described embodiment can be obtained by forming a heat exchanger structure by arranging a ventilation resistance plate for a heater core adjacent to a narrow heater core. Furthermore, an auxiliary heater (for example, a PTC heater) disposed on the downstream side of the heater core 8 is also included in the heat exchanger for air conditioning of the present invention.

  (3) In the embodiment described above, the ventilation holes 6a, 61a, 61b, 62a, 62b of the ventilation resistance plates 6, 61, 62 are formed in a circular shape or a rectangular shape, but other shapes such as an elliptical shape may be used. . Moreover, you may form combining one or more types of ventilation holes (for example, circular shape and rectangular shape) on one ventilation resistance plate.

It is a schematic diagram which shows the structure of the air conditioning unit of 1st Embodiment. It is a schematic diagram which shows the structure of the air conditioning unit of the comparative example of 1st Embodiment. It is a whole perspective view of the evaporator structure of a 1st embodiment. (A) is explanatory drawing which shows the air flow form in the air conditioning unit of a comparative example, (b) is explanatory drawing which shows the air flow form in the air conditioning unit of this embodiment, (c) is this implementation It is explanatory drawing which shows the airflow form in the case of abolishing the ventilation resistance board from the air conditioning unit of a form. It is a front view of the ventilation resistance board of 2nd Embodiment. It is a front view of the ventilation resistance board of 3rd Embodiment. It is an arrangement drawing explaining arrangement of a ventilation resistance board of a 4th embodiment. It is an arrangement drawing explaining arrangement of a ventilation resistance board of a 5th embodiment. It is sectional drawing of the air conditioning unit of 6th Embodiment. It is sectional drawing of the air conditioning unit of the comparative example of 6th Embodiment. It is a whole perspective view of the evaporator structure of a 6th embodiment. It is a front view of the evaporator for air-conditioning units of the comparative example of 7th Embodiment. It is EE sectional drawing of FIG. It is sectional drawing of the evaporator structure of 7th Embodiment.

Explanation of symbols

2 Case 2a, 2b Mounting portion 5, 5 'Evaporator 6, 61, 62 Ventilation resistance plate 6a, 61a, 61b, 62a, 62b Ventilation hole 7 Evaporator structure

Claims (10)

A case (2) in which an air passage through which air flows is formed, and attachment portions (2a, 2b) for attaching a heat exchanger for air conditioning and openings (11, 12, 13) for blowing the air into the vehicle interior are formed. When,
A narrow-shaped heat exchanger (5) in which the width dimension in the mainstream flow direction (A) of the air is shorter than the reference-shaped heat exchanger (5 ′) having a shape suitable for the mounting portion (2a);
An air flow adjusting member (6, which is arranged adjacent to the downstream side of the air flow with respect to the narrow heat exchanger (5) and adjusts the flow form of the air flowing out from the narrow heat exchanger (5). 61, 62),
When the air flow adjusting member (6, 61, 62) and the narrow heat exchanger (5) are arranged adjacent to each other as a heat exchanger structure (7),
The air flow adjusting member (6, 61, 62) is configured to prevent the air blown from the heat exchanger structure (7) when the heat exchanger structure (7) is attached to the attachment portion (2a). The blowing angle is equal to the blowing angle of the air blown from the reference shape heat exchanger (5 ′) when the reference shape heat exchanger (5 ′) is attached to the attachment portion (2a). Thus, the air flow adjusting member (6, 61, 62) is formed in the opening (11, 12, 13) when the heat exchanger structure (7) is attached to the attachment (2a). ) From the opening (11, 12, 13) when the reference shape heat exchanger (5 ′) is attached to the attachment part (2a). Equivalent to the air blowing temperature and air blowing volume Air conditioning unit of the vehicle air-conditioning apparatus, characterized in that it is formed such that.   The air flow adjusting member (6, 61, 62) is configured so that a flow form of air flowing through the air passage when the heat exchanger structure (7) is attached to the attachment portion (2a) is the reference shape heat. 2. The air conditioning unit for a vehicle air conditioner according to claim 1, wherein the air conditioner is formed to be equivalent to the flow form when the exchanger (5 ′) is attached to the attachment part (2 a).   The air flow adjusting member (6, 61, 62) is formed such that the ventilation resistance of the heat exchanger structure (7) is equal to the ventilation resistance of the reference shape heat exchanger (5 ′). The air conditioning unit of the vehicle air conditioner according to claim 1 or 2.   The position of the air outlet surface of the heat exchanger structure (7) when the heat exchanger structure (7) is attached to the attachment portion (2a) is the position of the reference shape heat exchange in the attachment portion (2a). It is equivalent to the position of the air outlet surface of the said reference | standard shape heat exchanger (5 ') at the time of attaching a heat exchanger (5'), The vehicle for any one of Claims 1 thru | or 3 characterized by the above-mentioned. Air conditioning unit of air conditioner. The air flow adjusting member (6, 61, 62) is formed of a plate-like member arranged in parallel to the air outlet surface of the narrow heat exchanger (5), and the narrow heat Ventilation holes (6a, 61a, 61b, 62a, 62b) through which the air flowing out from the exchanger (5) passes are formed,
The said ventilation hole (6a, 61a, 61b, 62a, 62b) is formed so that the ventilation area of an outer side may become large rather than an inner side in the ventilation hole arrangement | positioning range. An air conditioning unit for a vehicle air conditioner according to claim 1. A case (2) in which an air passage through which air flows is formed, and attachment portions (2a, 2b) for attaching a heat exchanger for air conditioning and openings (11, 12, 13) for blowing the air into the vehicle interior are formed. A method for manufacturing an air conditioning unit of a vehicle air conditioner comprising:
A narrow-shaped heat exchanger (5) in which a width dimension in the mainstream flow direction of the air is shorter than a reference-shaped heat exchanger (5 ') having a shape suitable for the mounting portion (2a), and the width Air flow adjusting members (6, 61, 62) that are arranged adjacent to the narrow heat exchanger (5) on the downstream side of the air flow and adjust the flow form of the air flowing out of the narrow heat exchanger (5). ) Is attached to the attachment portion (2a),
When the narrow heat exchanger (5) and the air flow adjusting member (6, 61, 62) are arranged adjacent to each other as a heat exchanger structure (7),
In the attachment step, from the heat exchanger structure (7) when the heat exchanger structure (7) is attached to the attachment portion (2a ) as the air flow adjusting member (6, 61, 62). The blowing angle of the blown air is the blowing angle of the air blown from the reference shape heat exchanger (5 ′) when the reference shape heat exchanger (5 ′) is attached to the attachment portion (2a). It forms so that it may become equivalent, and, thereby, it blows off into the said vehicle interior from the said opening part (11, 12, 13) at the time of attaching the said heat exchanger structure (7) to the said attaching part (2a). Air blown out into the vehicle compartment from the openings (11, 12, 13) when the reference shape heat exchanger (5 ′) is attached to the attachment part (2a). It is formed to be equal to the blowout temperature and blowout air volume of Manufacturing method of the air conditioning unit of the vehicle air-conditioning apparatus, characterized by using a thing.   The vehicle installation according to claim 6, wherein, in the attachment step, the heat exchanger structure (7) is attached to the attachment portion (2a) after the heat exchanger structure (7) is formed. Manufacturing method of air conditioning unit of air conditioner.   In the attaching step, the air flow adjusting member (6, 61, 62) is attached to the attaching portion (2a), and then the narrow heat exchanger (5) is attached to the attaching portion (2a). The manufacturing method of the air-conditioning unit of the vehicle air conditioner of Claim 6 characterized by the above-mentioned.   In the attachment step, the air flow adjusting member (6, 61, 62) is attached to the attachment portion (2a) after the narrow heat exchanger (5) is attached to the attachment portion (2a). The manufacturing method of the air-conditioning unit of the vehicle air conditioner of Claim 6 characterized by the above-mentioned.   The air flow adjusting member (6) has a wind velocity distribution of air passing through the heat exchanger structure (7) when the heat exchanger structure (7) is attached to the attachment portion (2a). When the reference shape heat exchanger (5 ′) is attached to the attachment portion (2a), it is formed to be equivalent to the wind speed distribution of the air passing through the reference shape heat exchanger (5 ′). The air conditioning unit of the vehicle air conditioner according to claim 1, wherein the air conditioning unit is an air conditioning unit.

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