JP2001225630A - Air-conditioning unit for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air-conditioning unit for an automobile capable of reducing a size of a unit case including a duct. SOLUTION: A scroll part 21 inside which a blowing fan of a blower is stored, and a duct part 23 provided adjacently to the scroll part 21, having a width wider than the scroll part 21, for introducing blasts passing through heat-exchanges 6, 7, and of which the flow-out ports 34, 35 for the blasts are opened toward an outside of the unit case 2 are provided in the unit case 2 arranged in an in-cabin space covered with an instrument panel. The ducts V for introducing the blasts flowing out from the ports 34, 35 to prescribed positions inside a cabin are provided integrally with or separatedly from the unit case 2 in the ports 34, 35 of the duct part 23. At least one of the ducts V is arranged by the side of the scroll part 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioning unit for an automobile.

[0002]

2. Description of the Related Art FIG. 5 is a sectional view showing an example of a conventional product. The air conditioning unit a for a vehicle shown in this figure is disclosed in Japanese Patent Application Laid-Open No. 9-267620, and includes a unit case b disposed in a vehicle interior space covered with an instrument panel, and a unit case b. It has a blower c attached to the case b and both cooling and heating heat exchangers d and e arranged in the unit case b.

[0003] The unit case b includes a scroll portion b1 in which a blower fan c1 of the blower c is housed, and a duct portion provided adjacent to the scroll portion b1 and guiding air blown through at least the cooling heat exchanger d. b2. The duct b2 is provided with a foot outlet f, a vent outlet g, and a defroster outlet h through which at least air blown through the cooling heat exchanger d flows out of the unit case b.

[0004] The foot outlet f is provided with a foot duct F for guiding the air flowing out of the foot outlet f to the passenger's foot in the vehicle compartment. The vent outlet g is provided with a vent duct V that guides the air flowing out of the vent outlet g to the vent outlet P1 of the instrument panel. The defroster outlet h is connected to the defroster outlet h.
A defroster duct D is provided to guide the air flowing out of the instrument panel to a defroster outlet P2 of the instrument panel.

[0005] In an air conditioning unit such as the air conditioning unit a described above, the width of both the heat exchangers d and e for cooling and heating is generally wider than the width of the blower fan c1. The width of the duct b2 of the case b is wider than the width of the scroll b1.

[0006]

By the way, the space at the front of the vehicle compartment covered with the instrument panel is small, and a steering member for supporting the steering column is arranged along the vehicle width direction in this space. , Instruments such as speedometers, and in-vehicle devices such as car navigation devices. For this reason, the storage space of the air conditioning unit a is extremely limited, and various ducts F,
The size of the unit case b including V and D is preferably as small as possible.

Therefore, an object of the present invention is to provide an air conditioning unit for an automobile, which can reduce the size of a unit case including a duct as much as possible.

[0008]

According to the first aspect of the present invention,
A unit case disposed in a vehicle interior space covered by an instrument panel, a blower attached to the unit case, and a heat exchanger disposed in the unit case, wherein the unit case is a blower fan of the blower. And a duct portion which is provided adjacent to the scroll portion, is provided adjacent to the scroll portion, is wider than the scroll portion, guides air blown through the heat exchanger, and has an outlet for opening the air blowout to the outside of the unit case. An air conditioning unit for an automobile, wherein a duct that guides the air flowing out of the outlet to a predetermined position in the vehicle compartment is provided at an outlet of the duct portion or integrally or separately with a unit case. At least one duct is arranged beside the scroll part.

According to a second aspect of the present invention, there is provided the air conditioner for an automobile according to the first aspect, wherein the heat exchanger is disposed at a bottom of the unit case, and the unit case has a scroll portion and a duct at the top thereof. And the department,
The duct portion is disposed so as to be located forward of the scroll portion in the vehicle front-rear direction. The duct portion has a vent outlet through which air flows out in the vent mode, and the vent outlet has an outlet from the vent outlet. And a vent duct for guiding the blown air to a vent outlet of the instrument panel.

According to a third aspect of the present invention, there is provided an air conditioner for a vehicle according to the second aspect, wherein the vent outlet is provided with:
It is characterized in that it is open on a surface other than the upper surface of the duct portion.

According to a fourth aspect of the present invention, there is provided the air conditioner for an automobile according to the third aspect, wherein the maximum height of the duct portion from the bottom wall of the unit case is the maximum height of the scroll portion from the bottom wall. It is characterized in that it is set below the height.

[0012]

According to the first aspect of the present invention, the duct provided adjacent to the scroll portion of the unit case is wider than the scroll portion, and the duct provided at the outlet of the duct portion has at least Since one is arranged beside the scroll part, the dead space beside the scroll part can be effectively used as a piping space for the duct. Therefore, it is possible to suppress the duct from spreading in the unit case width direction, and to reduce the size of the unit case including the duct as much as possible.

According to the second aspect of the invention, in addition to the effect of the first aspect, the unit case is arranged so that the duct portion is located forward of the scroll portion in the vehicle longitudinal direction, and the duct portion has A vent outlet through which air flows out in the vent mode is opened, and the vent outlet is provided with a vent duct for guiding the air flowing out of the vent outlet to the vent outlet of the instrument panel. A relatively long distance in the vehicle front-rear direction can be ensured between the duct portion having the outlet and the vent outlet of the instrument panel. Therefore, in the vent mode, the air flowing through the duct can be smoothly circulated to the vent outlet via the vent duct, and the ventilation resistance in the vent mode can be reduced.

In addition, since the length of the vent duct in the front-rear direction of the vehicle can be made relatively long, when the vent duct has a center vent duct and a side vent duct, the throttle of the center vent duct is reduced. By reducing the size, air can be smoothly distributed to the center vent duct and the side vent duct, and in this respect, the ventilation resistance in the vent mode can be suppressed to a small value. Therefore, it is possible to achieve both a large air volume in the vent mode and low noise, and also to achieve a large air volume in the vent mode and downsizing of the fan motor of the blower.

According to the third aspect of the present invention, in addition to the effect of the second aspect, the vent outlet is opened on a surface other than the upper surface of the duct portion, so that the vent duct is moved upward from the vent outlet. There is no need to start up, and the vertical dimensions of the unit case including the vent duct can be kept low. Therefore, it is possible to cope with the case where the vent duct is arranged below the steering member in a small vehicle or the like having a small height dimension in the space covered by the instrument panel.

According to a fourth aspect of the present invention, in addition to the effect of the third aspect of the present invention, the maximum height of the duct portion from the bottom wall of the unit case is equal to or less than the maximum height of the scroll portion from the bottom wall. Therefore, the vertical dimension of the unit case can be reduced, and the unit case including the vent duct can be further downsized.

[0017]

FIG. 1 is a sectional view showing an example of an embodiment in which the inventions of claims 1 to 4 are implemented together. FIG. 2 is a perspective view showing a unit case of the one shown in FIG. An air conditioner unit 1 shown in FIG. 1 is used for an automobile, and is provided with a unit case 2 disposed in a space in front of a vehicle compartment S covered with an instrument panel P, and attached to the unit case 2. Blower 3
And

As shown in FIGS. 1 and 2, the unit case 2 is disposed on a front wall 2a disposed on the engine room E side in front of the vehicle in the front-rear direction X and on a vehicle room S side behind the vehicle in the front-rear direction X. And a scroll portion 21 in which a sirocco fan 3a employed as a blower fan of the blower 3 is accommodated at a top portion on the rear wall 2b side.

An opening 31 for opening the sirocco fan 3a into the scroll chamber 11 is opened on the right side wall of the scroll portion 21, and a blower 3 for rotating the sirocco fan 3a is rotated.
Is mounted. An inflow port 32 through which outside air outside the vehicle or inside air in the vehicle compartment S flows into the scroll portion 21 is opened on the left side wall of the scroll portion 21.

A scroll chamber 11 is formed inside the scroll section 21. Inside the unit case 2, there is formed a substantially U-shaped air passage 5 which communicates with the scroll chamber 11 and through which air from the sirocco fan 3a flows.
The air passage 5 is provided with a descending passage 12 through which air from the sirocco fan 3 a descends along the rear wall 2 b of the unit case 2.
It has.

At the bottom 22 of the unit case 2, a cooling heat exchanger 6 for cooling the air flowing down the descending passage 12 is arranged on the rear wall 2b side, and heats the air passing through the cooling heat exchanger 6. Heating heat exchanger 7 is arranged on front wall 2a side. The cooling heat exchanger 6 is disposed in a state where the cooling heat exchanger 6 is inclined at an appropriate angle from the upright state to the heating heat exchanger 7 side. The heating heat exchanger 7 is arranged substantially horizontally beside the cooling heat exchanger 6. Between the cooling heat exchanger 6 and the heating heat exchanger 7, there is provided a bypass passage 13 through which the air passing through the cooling heat exchanger 6 flows bypassing the heating heat exchanger 7.

Below the cooling heat exchanger 6, a drain reservoir 1 for storing condensed water dehumidified by the cooling heat exchanger 6 is provided.
4 are provided. Drain reservoir 1 in unit case 2
A drain port (not shown) for discharging condensed water accumulated in the drain reservoir 14 to the outside of the unit case 2 is opened at a portion facing the drain reservoir 4. A drain reservoir 14 is provided on the bottom wall 2c of the unit case 2.
A waterproof step portion 2d is formed to prevent the condensed water accumulated on the bottom wall 2c from moving on the bottom wall 2c at the time of an abrupt stop of the automobile and so on to wet the heat exchanger 7 for heating.

In the air passage 5 upstream of the cooling heat exchanger 6, a filter 8 for removing dust during air blowing is provided at a position adjacent to the cooling heat exchanger 6, on the air inlet surface of the cooling heat exchanger 6. It is arranged so as to cover the entire surface. A first guide wall 2e for guiding the air passing through the heating heat exchanger 7 obliquely upward toward the bypass passage 13 in the air passage 5 downstream of the cooling heat exchanger 6, and a first guide wall 2e. From the top of the front wall 2a
And a second guide wall 2f for guiding the air blow obliquely upward toward the front wall 2a.

The first guide wall 2e forms a hot air passage 15 through which the air passing through the heating heat exchanger 7 flows. At the confluence of the air flowing through the hot air passage 15 and the air flowing through the bypass passage 13, a cold air position where the hot air passage 15 is closed and the bypass passage 13 is opened, and a bypass air passage where the hot air passage 15 is opened and the bypass passage 13 is opened. A rotary air mix door 41 that moves between the hot air position that closes the air passage 13 and the air that passes through the bypass passage 13 and the air that passes through the heating heat exchanger 7 is distributed at an appropriate ratio. Have been. The air passage 5 downstream of the air mixing door 41 is an air mixing chamber 16 for mixing the air passing through the bypass passage 13 and the air passing through the heating heat exchanger 7.

In the unit case 2, there is formed a foot passage 17 surrounded by both the first and second guide walls 2e and 2f and the front wall 2a, and is formed in the second guide wall 2f facing the air mixing chamber 16. The communication opening 33 for opening the air mix chamber 16 and the foot passage 17 is opened. This communication port 3
3, an open position where the rising passage 18 along which the air blows up along the front wall 2 a of the unit case 2 is closed to open the communication port 33, and a closed position where the rising passage 18 is opened and the communication port 33 is closed. And a pivotable foot door 42 that moves between the two. The operation of the foot door 42 is controlled such that the foot door 42 is located at the open position in the foot mode and is fully opened, and is in the half-open state in the bi-level mode.

The duct 23 of the unit case 2 for forming the air passage 5 downstream of the heating heat exchanger 7 and guiding the air passing through the cooling heat exchanger 6 has foot passages on both left and right sides thereof. The foot outlet 34 which is the opening 17
Are each open. Each foot outlet 34 is provided separately from the unit case 2 with an unillustrated foot duct for guiding the air flowing out of the foot outlet 34 to the foot of the occupant in the passenger compartment S.

The duct portion 23 is provided on the top of the unit case 2 adjacent to the scroll portion 21, and
The maximum height of the unit case 2 from the bottom wall 2c is the same as the maximum height of the scroll portion 21 from the bottom wall 2c, and is disposed in front of the scroll portion 21 in the vehicle front-rear direction X.
The ascending passage 18 of the duct portion 23 is isolated from the scroll chamber 11 by an arcuate arc-shaped partition wall 2g of the unit case 2 forming the scroll chamber 11, and blows air along the arc-shaped partition wall 2g from the engine room E side to the vehicle compartment. It is formed so as to be gradually directed to the S side.

Since the cooling heat exchanger 6 and the heating heat exchanger 7 disposed on the bottom 22 of the unit case 2 are wider than the width of the sirocco fan 3a, the bottom 22 and the duct 23 of the unit case 2 are provided. The width of the scroll portion 21 in the vehicle width direction Y is wider than the width of the scroll portion 21 in the vehicle width direction Y. Vent outlets 35 are respectively opened at the upper end of the rear surface 24a in the vehicle front-rear direction on both protruding portions 24 of the duct portion 23 protruding to the left and right sides of the scroll portion 21. On the upper surface 23a of the duct 23, a defroster outlet 36 is opened at a position facing the ascending passage 18.

The rear edge of the defroster outlet 36 in the duct 23 has a defroster outlet 36 in the defroster mode.
Is opened to close both vent outlets 35, 35, and the defroster outlet 36 is provided in the vent mode and the bi-level mode.
A rotary switching door 43 is provided to close the vent and open both vent outlets 35, 35. Defroster outlet 3
The air blown out from the defroster outlet 36 in the defroster mode is supplied to a defroster outlet P2 opening on the upper surface of the instrument panel P near the windshield G.
A defroster duct D is provided separately from the unit case 2. In each vent outlet 35, a vent duct V for guiding the air flowing out of the vent outlet 35 in the vent mode and the bi-level mode to a vent outlet P1 opening in front of the instrument panel P is separate from the unit case 2. Provided on the body.

FIG. 3 is a perspective view showing a state where a vent duct is connected to the one shown in FIG. As shown in FIG.
The vent ducts V provided at the two vent outlets 35 of the unit case 2 are respectively provided on the upper side of the scroll part 21 of the unit case 2 with the inlet 31 (see FIG. 2) of the scroll part 21 and the inlet 32. And are arranged to avoid.

The vent duct V is provided at a vent outlet P1 opening at the front center of the instrument panel P.
And a side vent duct V2 branched from the center vent duct V1 and extending to the side of the center vent duct V1. The side vent duct V2 is connected to a vent outlet P1 opening at the front end of the instrument panel P.

FIG. 4 is a perspective view showing another example of the embodiment in which the inventions of claims 1 to 4 are implemented together.
As shown in FIG. 4, the air conditioning unit 100 includes a scroll portion 21 on the top of a unit case 102 and a duct portion 23 disposed in front of the scroll portion 21 in the vehicle front-rear direction X, similarly to the air conditioning unit 1. Are provided adjacent to each other. The duct portion 23 is wider than the scroll portion 21 and has a lower wall 10
The maximum height from 2c is the bottom wall 102c of the scroll portion 21
From the maximum height.

The cooling heat exchanger 6 disposed on the bottom portion 22 in the unit case 102 is located on the rear wall 102b side of the unit case 102 and has a pre-bell area 6a through which air flows from above to below. The main cooling area 6b, which is located on the front wall 102a side and through which the air passing through the pre-bell area 6a passes again from below to above, is divided into
Are inclined at an appropriate angle from the horizontal state so that the lower part is located below the main cooling area 6b.

In the air passage 5 downstream of the main cooling area 6b of the cooling heat exchanger 6, a heating heat exchanger 7 is disposed substantially horizontally, and the cold air passing through the main cooling area 6b is used for heating. A bypass passage that flows around the heat exchanger 7 is formed. Between the cooling heat exchanger 6 and the heating heat exchanger 7, the cool air that has passed through the main cooling area 6b of the cooling heat exchanger 6 is supplied to the heating heat exchanger 7 and the bypass passage at an appropriate ratio. A slide-type air mix door 41 that distributes air is arranged.

The air mix door 41 is provided with a pinion 9
A cooling air position for covering the heating heat exchanger 7 and opening a bypass passage for the cold air passing through the main cooling area 6b of the cooling heat exchanger 6;
And slides between the rack and the pinion 9 between the hot air position where the bypass is opened and the bypass passage is closed.

The duct 23 of the unit case 102 has a foot outlet 34 on each of the left and right sides thereof, and a defroster outlet 36 on the upper surface 23a. The two projecting portions 24 of the duct portion 23 projecting to the left and right sides of the scroll portion 21 include a portion located below the installation port 31 of the scroll portion 21 on the rear surface 24a in the vehicle front-rear direction and a scroll portion 21. Inlet 32
The vent outlet 35 is open to a portion located below the bottom.

Each vent outlet 35 has a vent outlet 3
A rotatable vent door 44 for opening and closing the defroster 5 is provided outside the unit case 102, and a rotatable defroster door 4 for opening and closing the defroster outlet 36 is provided at the defroster outlet 36.
5 is provided in the unit case 102.

Each foot outlet 34 is connected to a foot duct separate from the unit case 102. The unit case 1 is inserted into the defroster outlet 36.
02 is connected to a defroster duct D (see FIG. 1) which is a separate body. A vent duct V (see FIG. 1) separate from the unit case 102 is connected to each vent outlet 35. The vent duct V is connected to the scroll portion 2 of the unit case 102.
The lower part 1 is arranged so as to avoid the inlet 31 and the inlet 32 of the scroll part 21.

The air conditioning units 1 and 100 described above
Then, the duct part 23 of the unit cases 2 and 102 provided adjacent to the scroll part 21 is
The vent duct V which is wider than 1 and is provided at the vent outlet 35 of the duct part 23 is arranged beside the scroll part 21. For this reason, the dead space beside the scroll part 21 can be effectively used as a piping space for the vent duct V. Therefore, the expansion of the vent duct V in the width direction of the unit case 2 is suppressed, and the vent duct V is included. The size of the unit case 2 can be reduced as much as possible.

By the way, in the conventional product shown in FIG. 5, the unit case b is arranged such that the duct b2 provided on the top thereof adjacent to the scroll b1 is located behind the scroll b1 in the vehicle longitudinal direction X. Are located. Therefore, the distance between the duct portion b2 of the unit case b and the vent outlet P1 of the instrument panel P in the vehicle front-rear direction X is short, and the air is blown out from the vent outlet P1 toward the occupant in the passenger compartment S. In the vent mode, the air flowing through the duct b2 is rapidly changed in direction toward the vent outlet P1. Therefore, the ventilation resistance in the vent mode increases.

In addition, the vehicle front-rear direction X of the vent duct V
When the vent duct V has the center vent duct V1 and the side vent duct V2, the air is smoothly distributed to the center vent duct V1 and the side vent duct V2 because the length of the vent duct V becomes short. As a result, a large throttle must be provided in the center vent duct V1 to force the air distribution to the side vent duct V2, and the ventilation resistance in the vent mode also increases in this regard.

Therefore, in the conventional product shown in FIG. 5, if the amount of air blown into the cabin S in the vent mode is to be increased,
As the noise increases, the size of the fan motor increases, which goes against the reduction in weight and size of the air conditioning unit.

On the other hand, the air conditioning units 1 and 100
Then, the unit cases 2 and 102 are arranged such that the duct portion 23 provided on the top thereof adjacent to the scroll portion 21 is located forward of the scroll portion 21 in the vehicle front-rear direction X. Therefore, a relatively long distance in the vehicle front-rear direction X can be ensured between the duct portion 23 having the vent outlet 35 and the vent outlet P1 of the instrument panel P. Therefore, in the vent mode, the air flowing through the duct portion 23 can be smoothly circulated to the vent outlet P1 via the vent duct V, and the ventilation resistance in the vent mode can be reduced.

In addition, the vehicle front-rear direction X of the vent duct V
Can be made relatively long. Therefore, when the vent duct V includes the center vent duct V1 and the side vent duct V2, the center vent duct V
By reducing the throttle of 1, the air distribution to the center vent duct V1 and the side vent duct V2 can be performed smoothly, and also in this regard, the ventilation resistance in the vent mode can be reduced. Therefore, it is possible to achieve both a large air volume in the vent mode and low noise, and also to achieve a large air volume in the vent mode and downsizing of the fan motor 3b of the blower 3 at the same time.

Further, in the conventional product shown in FIG. 5, since the vent outlet g of the unit case b is open at the upper end of the duct b2, the vent outlet g is connected to the vent outlet P1 of the instrument panel P. When connecting with the vent duct V, the vent duct V needs to be once set up from the vent outlet g of the unit case b.

On the other hand, the air conditioning units 1 and 100
Then, the vent outlet 35 of the unit cases 2 and 102
Is opened at the vehicle front-rear direction rear surface 24a of the projecting portion 24 of the duct portion 23 projecting to the side of the scroll portion 21, so that the vent outlet 35 and the vent outlet P1 of the instrument panel P are connected to the vent duct V. It is not necessary to raise the vent duct V upward from the vent outlet 35 at the time of connection. Therefore, the air conditioning units 1, 10
0, the unit cases 2 and 1 including the vent duct V
02 can be made smaller than the conventional product shown in FIG.

In the conventional product shown in FIG. 5, the duct portion b2 of the unit case b protrudes above the scroll portion b1, whereas in the air conditioning units 1 and 100, the duct portions of the unit cases 2 and 102 are provided. 23 has the same maximum height from the bottom wall 2c of the unit case 2 as the maximum height from the bottom wall 2c of the scroll portion 21. Also in this regard, in the air conditioning units 1 and 100, the vertical dimensions of the unit case 2 and 102 including the vent duct V can be made smaller than those of the conventional case shown in FIG.

By the way, a steering member M (see FIG. 1) for supporting a steering column is provided in a space in front of the cabin S covered with the instrument panel P in the vehicle width direction Y.
And generally, the vent duct V
Is disposed above the steering member M. But,
In some cases, the vent duct V cannot be arranged above the steering member M due to the relative position between the steering member M and the vent outlet P1 due to the design on the vehicle side. Alternatively, if the vent duct V is disposed above the steering member, the ventilation resistance of the vent duct V increases, which may cause a decrease in the air volume and an increase in noise in the vent mode. In such a case, it is necessary to arrange the vent duct V below the steering member M.

However, in the conventional product shown in FIG. 5, as described above, the duct portion b2 of the unit case b protrudes above the scroll portion b1, and the vent duct V once rises upward from the upper end of the duct portion b2. Therefore, the vertical dimension of the unit case b including the upper vent duct V becomes relatively large, and the space covered by the instrument panel P has a small height in the space covered by the instrument panel P. May not be supported when

On the other hand, the air conditioning units 1 and 100
Then, the unit cases 2 and 10 including the vent duct V
2 can be made smaller than that of the conventional product shown in FIG. 5, so that the space covered by the instrument panel P has a small height in a small vehicle or the like. Can be dealt with even when the

The air conditioning units 1 and 2 described above
In 100, the cooling heat exchanger 6 and the heating heat exchanger 7 are employed as heat exchangers, but the heat exchanger may be any one of the cooling heat exchanger 6 and the heating heat exchanger 7. Only one may be used.

In the air conditioning units 1 and 100,
The scroll portion 21 is provided at the center of the unit cases 2 and 102 in the vehicle width direction Y, and the vent ducts V are arranged on both left and right sides of the scroll portion 21. However, the scroll portion 21 may be provided at one end of the unit case 2 in the vehicle width direction Y. The vent duct V may be arranged only on one of the left and right sides of the scroll portion 21.

Further, in the air conditioning units 1 and 100,
A vent duct V is arranged beside the scroll part 21. However, the duct disposed beside the scroll portion 21 is not limited to the vent duct V, and may be at least one of a foot duct, a defroster duct D, and a vent duct V. If there are a plurality of ducts, only one of the ducts may be used.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating an example of an embodiment of the present invention.

FIG. 2 is a perspective view showing a unit case of the one shown in FIG.

FIG. 3 is a perspective view showing a state where a vent duct is connected to the one shown in FIG. 2;

FIG. 4 is a perspective view showing another example of the embodiment of the present invention.

FIG. 5 is a sectional view showing an example of a conventional product.

[Explanation of symbols]

 Reference Signs List 1,100 Air conditioning unit 2,102 Unit case 2c, 102c Unit case bottom wall 3 Blower 3a Sirocco fan (Blow fan) 6 Cooling heat exchanger (Heat exchanger) 7 Heating heat exchanger (Heat exchanger) DESCRIPTION OF SYMBOLS 21 Scroll part 22 Bottom part 23 Duct part 23a Upper surface of duct part 34 Foot outlet (outlet) 35 Vent outlet (outlet) 36 Defroster outlet (outlet) D Defroster duct (duct) P1 Vent outlet P Instrument Panel S Chassis V Vent duct (duct) X Vehicle front-back direction

Claims (4)

[Claims] 1. A unit case (2) arranged in a space inside a vehicle compartment (S) covered by an instrument panel (P).
102), a blower (3) attached to the unit case (2, 102), and a unit case (2, 10).
2) a heat exchanger (6, 7) disposed therein, and the unit case (2, 102) includes a scroll portion (21) in which a blower fan (3a) of a blower (3) is housed.
And a unit case (2, 1) that is provided adjacent to the scroll part (21) and guides the air that is wider than the scroll part (21) and that has passed through the heat exchangers (6, 7).
02) a duct portion (23) having an outflow port (34, 35, 36) open to the outside, and the outflow port (34, 35, 36) of the duct portion (23) is connected to the outflow port (34, 35, 36). 35,3
6) In an air conditioning unit for automobiles, ducts (D, V) for guiding air blown out of the vehicle case (S) to a predetermined position in the vehicle compartment (S) are provided integrally with or separately from the unit case (2, 102). An air conditioning unit for an automobile, wherein at least one of the ducts (D, V) is arranged beside a scroll portion (21). 2. The air conditioning unit for a vehicle according to claim 1, wherein the heat exchanger (6, 7) includes a unit case (2, 102).
Of the unit case (2, 10
2) has a scroll part (21) and a duct part (23) at the top thereof, and is arranged such that the duct part (23) is located forward of the scroll part (21) in the vehicle front-rear direction (X). In the duct (23), a vent outlet (35) through which air flows out in the vent mode is opened,
The vent outlet (35) is provided with the vent outlet (35).
An air conditioning unit for an automobile, comprising: a vent duct (V) for guiding air blown out of the vehicle to a vent outlet (P1) of an instrument panel (P). 3. The air conditioning unit for a vehicle according to claim 2, wherein the vent outlet (35) is provided on an upper surface (2) of the duct portion (23).
An air conditioning unit for a vehicle, characterized by being open to a surface other than 3a). 4. The air conditioning unit for a vehicle according to claim 3, wherein the duct (23) has a maximum height from the bottom wall (2c, 102c) of the unit case (2, 102). (21) The air conditioning unit for an automobile, wherein the height is set to be equal to or less than the maximum height from the bottom wall (2c, 102c).