JPH04186029A - Air conditioner - Google Patents

Abstract

PURPOSE:To provide a compact, inexpensive air conditioner by forming a tongue part and a scroll part of a transverse fan by displacing those members circumferentially such that portions of both members corresponding to an upper passage is located more forward in the direction of rotation of a rotor than those portions corresponding to a lower passage. CONSTITUTION:A tongue part 32 and a scroll part 34 corresponding to a lower passage 24 are formed more forward of a rotor 21 a in the direction of rotation of the same than those members 31, 33 corresponding to an upper passage 23. Accordingly, for air blown out from the transverse fan 21 one blown out from a location corresponding to the upper passage 23 is directed relatively upwardly while one blown off from a location corresponding to the lower passage 24 being directed relatively downwardly. The air flows into the lower passage 24 and the upper passage 23 smoothly and independently the air through the upper passage 23 is blown out toward the inside of a room from a blow-off outlet 25 such that it covers over the air blown out from a blow-off outlet 26 of the lower passage 24.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to an air conditioner equipped with a cross-flow blower.

(Conventional technology) Conventionally, when indoor heating is performed using an air conditioner, the warm air blown into the room from the air conditioner rises to the top of the room due to the difference in float with the indoor air, resulting in a large temperature difference between the top and bottom of the room. It is known that, as a result, comfortable heating is hindered.

As a method to prevent the heating performance from deteriorating due to the floating of warm air, the air conditioner has two outlets in the vertical direction, and indoor air (cold air) is supplied from the upper outlet and from the lower passage. A method has already been proposed in which hot air is blown out from the room and the indoor air is used to suppress the hot air to prevent it from rising (see, for example, Japanese Patent Laid-Open No. 178836/1983).

(Problem to be Solved by the Invention) However, in conventional devices such as this known example, it is customary to have two blowers, one for blowing out warm air and one for blowing indoor air, and therefore, it is relatively difficult to use. There are problems in that the manufacturing cost increases due to the large number of expensive blowers, and the device becomes larger to secure the space for their arrangement.

Therefore, the present invention aims to provide an inexpensive and compact air conditioner that can blow air (particularly air at different temperatures) in two directions, up and down, using a single blower.

(Means for Solving the Problems) In the present invention, as specific means for solving the problems, (1) In the invention according to claim 1, as illustrated in FIGS. 1 and 2, heat exchange A rotor 2 having a large number of blades extending in the axial direction provided in the air passage 22 on the downstream side of the vessel 10 in the circumferential direction.
1a, and a cross-flow blower 21 is disposed on the outer circumferential side of the rotor 21a, and the blowing direction of the airflow is defined by tongue parts 31, 32 and scroll parts 33 and 34, which are arranged at a predetermined interval in the circumferential direction of the rotor 21a. In this air conditioner, the air passage 22 is vertically divided on the downstream side of the cross-flow blower 21, and an upper passage 23 in which the outlet 25 is located on the upper side and a lower passage in which the outlet 26 is located in the lower side. 24 respectively, and the upper passage 23 and lower passage 24 face different positions in the axial direction of the cross-flow blower 21, and the tongue portions 31, 32 and scroll portions 33, 34 of the cross-flow blower 21 are formed. The formation position of the part corresponding to the upper passage 23 is the lower passage 24.
(n) In the invention as claimed in claim 2, the portion shown in FIGS. As illustrated in FIG. Multiple single heat exchangers divided into I! −
13, and the six heat exchangers 11 to 13
(III) In the invention according to claim 3, as illustrated in FIGS. 1 and 2, the refrigerant pipes 17 to 19 of In the air conditioner according to claim 4, the heat exchanger units 11 to 13 of the heat exchanger IO have different heat exchange capacities; As illustrated in FIG. 2, in the air conditioner according to claim 2,
The length of the refrigerant pipes 17 to 19 of each heat exchanger unit 11 to 13 is set to be substantially constant; In the air conditioner according to item 1, between the heat exchanger 10 and the cross-flow blower 2I, in the first position, both the upper passage 23 and the lower passage 24 face the heat exchanger 10. On the other hand, in the second position, a passage selection mechanism 40 is arranged so that only the lower passage 24 faces the heat exchanger 10 and the upper passage 23 faces the indoor side. Features.

(Function) Since each of the inventions of the present application has such a configuration, the following functions can be obtained.

(i) In the air conditioner according to claim 1, the upper passage 23 and the lower passage 24 of the air passage 22 are formed corresponding to different positions in the axial direction of the rotor 21a of the cross-flow blower 21, and the lower passage Since the tongue portion 32 and the scroll portion 34 corresponding to the upper passage 24 are formed on the front side in the rotational direction of the rotor 21a than the tongue portion 31 and the scroll portion 33 corresponding to the upper passage 23, the air is blown out from the crossflow blower 21. Of the air blown out from the position corresponding to the upper passage 23, the air blown out from the position corresponding to the lower passage 24 is directed relatively upward, and the air blown out from the position corresponding to the lower passage 24 is directed relatively downward. The air flows through the lower passage 24
and the upper passage 23, respectively, and flow smoothly into the upper passage 23.
The air on the upper passage 23 side is blown out from the air outlet 25 toward the indoor side so as to cover the air blown out from the air outlet 26 of the lower passage 24 above.

(11) In the air conditioner according to claim 2, in addition to the effect described in (1) above, the single heat exchanger 11-
13 is selectively controlled, for example, the single heat exchanger 12 corresponding to the lower passage 24 is operated for heating, and the upper passage 2
By stopping the operation of the single heat exchanger 11.13 corresponding to No. 3, relatively low temperature unconditioned air At which has not undergone heat exchange from the upper passage 23 and heat exchanged from the lower passage 24. Since the latter air-conditioned air A (warm air) is blown out in two directions, upper and lower, the air-conditioned air A,
is suppressed by the unconditioned air A, and its floating is suppressed as much as possible.

(iii) In the air conditioner according to claim 3, the above (11)
) In addition to the action described above, since the heat exchange capacities of each heat exchanger unit 11-13 are different, only by selectively operating each heat exchanger unit 11-13 with different heat exchange capacity. Moreover, by controlling the rotation speed of the cross-flow blower 21, it is possible to variously change the performance of the air conditioner as a whole.

(iv) In the air conditioner according to claim 4, the above (11)
In addition to the described effect, even though the heat exchanger IO is formed separately, the lengths of the refrigerant pipes 17 to 19 of each heat exchanger unit 11 to 13 are set to be approximately constant, so that each heat The internal resistance of the exchangers 11 to 13 is almost the same,
As a result, even when the total heat exchangers 11 to 13 are operated at the same time, the refrigerant can be similarly circulated among the six heat exchangers 11 to I3, and imbalance in capacity can be prevented as much as possible. It is something that will be done.

(V) In the air conditioner according to claim 5, in addition to the effect described in (i) above, when the passage selection mechanism 40 is operated and set to the first position, the heat exchanger 10 is The air-conditioned air A3 after passing through the upper passage 23 and the lower passage 24
When set to the second position, the conditioned air A3 is blown out from the lower passage 24, and the unconditioned air A3 is blown out from the upper passage 23 separately, especially during heating operation. The conditioned air A3 blown out from the lower passage 24 is suppressed by the unconditioned air A3 blown out from the upper passage 23, and its lifting is suppressed as much as possible.

(Effects of the Invention) Therefore, the air conditioners of the inventions of the present application provide the following effects.

■According to the air conditioner according to claim 1, air can be blown in two directions, up and down by a single cross-flow blower 21. Therefore, for example, as in the above-mentioned known example, two blowers can be used to blow air in two directions. Compared to a structure that performs Suita, the cost of the device can be reduced or the structure can be simplified.

(2) According to the air conditioner according to claim 2, in addition to the effect described in (1) above, by selectively operating each heat exchanger unit II-13, the floating of the conditioned air A3 is suppressed during heating, and the upper and lower parts of the room are The directional temperature difference can be made as small as possible, and more comfortable heating performance can be ensured.

(2) According to the air conditioner according to claim 3, in addition to the effect described in (1) above, the air conditioner 1
Since the performance of the air conditioner can be changed in various ways, variations in air conditioning characteristics are expanded, and it becomes easier to secure an air-conditioned space that is optimal for the indoor environment.

(2) According to the air conditioner according to claim 4, in addition to the effect described in (1) above, each heat exchanger unit 11 to 13 is placed in an optimum performance state in which the heat exchange capacity is not biased regardless of the selected usage mode. This allows for more efficient heating and cooling.

(2) According to the air conditioner according to claim 5, in addition to the effect described in (1) above, the entire heat exchanger 10 is always connected to the upper passage 23 and the lower passage 24 regardless of whether or not the passage selection mechanism 40 is operated.
2 or only the lower passage 24, it is possible to blow out in both the upper and lower directions when the capacity of the heat exchanger 10 is used to its fullest, and to suppress floating of hot air during heating operation. This allows air to be blown out in two directions, up and down, with higher capacity.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

First Embodiment FIG. 1 shows an air conditioner 1 according to an embodiment of the invention according to claims 1 to 4 of the present application, and FIG. 2 shows an indoor air conditioning/heating device using this air conditioner 1 as an indoor unit A system of an air conditioner Z is shown in each case.

The air conditioner 1 is a wall-mounted air conditioner, and has an inlet 50 formed on the upper surface of the casing 20, and an upper outlet 25 and a lower outlet 26, which will be described later, formed in the lower front surface of the casing 20. ing. The upper part of this casing 20 is provided with a heat exchanger 1, which will be described later, so as to face the suction port 50.
0 is set.

The heat exchanger 10 includes three heat exchanger units that are configured independently from each other, namely, a first heat exchanger unit 11 and a second heat exchanger unit 1.
2 and a third single heat exchanger I3 are sequentially arranged in the width direction of the casing 20. Here, the specific structure of each heat exchanger unit 11, 12.13 will be briefly described based on FIG. 2. It is equipped with .19.

In this embodiment, the first heat exchanger unit 11
and the third heat exchanger unit 13 have a one-pass configuration, and the second heat exchanger unit 12 has a two-pass configuration, and
Each refrigerant pipe 17. [The lengths of the pipes 8 and 19 are set to approximately constant lengths.

In addition, the refrigerant pipes 17, 18, 19 of each of these individual heat exchangers 11, 12, 13 are equipped with switching valves 14, 15, 16, which are respectively constituted by electromagnetic valves. By selectively opening and closing the heat exchangers 11, 12, and 16 using control signals from the controller 9, the heat exchangers 11, 12, and 13 can be operated simultaneously or selectively.

In Fig. 2, reference numeral 2 is an outdoor unit, 3 is a compressor, 4 is an expansion valve, and 5 is an accumulator. By connecting these devices with pipes, a series of refrigerant circulation systems are constructed. .

On the other hand, in the air passage 22 formed on the downstream side of the heat exchanger 10, a plurality of substantially band-shaped blades 21b are provided on the outer circumferential portion of the air passage 22,
21b,... are attached at predetermined intervals.
A known cross-flow blower 21 equipped with
They are arranged along the direction in which they are lined up. This cross-flow blower 21 is generally called a cross-flow fan, and as the rotor 21a rotates, air flows across the rotor 21a in its radial direction.

Incidentally, the blowing direction of air in this cross-flow blower 21 is determined by a tongue portion and a scroll portion, which will be described later, which are arranged to sandwich the rotor 2'la in the radial direction, but in this embodiment, The tongue portion and the scroll portion are formed into three parts corresponding to each heat exchanger unit 11, 12. In order to accommodate this, the air passage 22 is divided into two upper and lower passages, namely an upper passage 23 and a lower passage 24, on the downstream side of the cross-flow blower 21, as will be described later.
The downstream end of the passageway 24 is defined as an upper outlet 25 , and the downstream end of the lower passage 24 is defined as a lower outlet 26 .

That is, the air passage 22 includes an upper guide plate 27, an intermediate guide plate 28, and a lower guide plate 29, which are arranged in multiple stages at predetermined intervals in the vertical direction, and between the intermediate guide plate 28 and the lower guide plate 29. The flow path forming member 35 is arranged so as to straddle the flow path forming member 35. Then, scroll portions 33 and 34 are formed on the rear surface side of the rotor 21a by the flow path forming member 35 which forms the same plane as the intermediate guide plate 28 and wraps around the lower side of the rotor 21a.
The above first heat exchanger alone! and the first scroll portion 33.3 at positions corresponding to the third heat exchanger unit I3, respectively.
3 is formed to be offset to the rear side (that is, upper side) in the rotor rotational direction (arrow R direction) than the second scroll portion 34 at the position corresponding to the second heat exchanger unit 12. Further, the tongue portions 31 and 32 are formed by the rear edge portion of the upper guide plate 27;
Corresponding to the scroll section 33 and the second scroll section 34,
The first tongue portions 31, 31 at positions corresponding to the first heat exchanger unit 11 and the third heat exchanger unit 13, respectively,
A second heat exchanger at a position corresponding to the second heat exchanger unit 12
The rear side (i.e., the lower side) of the tongue portion 32 in the rotor rotational direction
It is formed by being deviated to.

In this way, each tongue portion 31, 32 and the scroll portion 33.3
4 are shifted in the rotor rotation direction, so that the air from the second heat exchanger unit 12 side is faster than the air from the first heat exchanger unit 1 or the third heat exchanger unit 13. The rotor 21a is directed more downward in the stage.
It will be blown out.

On the other hand, in response to the fact that the blowing direction from the rotor 21a is vertically different in the axial direction, a portion of the rotor 21a corresponding to the second heat exchanger unit 12 is placed in the lower passage 24, which will be described later. Also, the first heat exchanger unit 11
and portions corresponding to the third heat exchanger unit 13, respectively, are communicated with an upper passage 23, which will be described later.

That is, the upper passage 23 is formed between the upper guide plate 27 and the intermediate guide plate 28 as described above, but in this embodiment, the upper passage 23 is formed between the upper guide plate 27 and the intermediate guide plate 28 at both positions in the width direction. A part of the intermediate guide plate 28 is bent upward at a position corresponding to the second tongue part 32 and the second scroll part 34 so as to face the first tongue part 31° 3I and the first scroll fJ33, 33. The bent portion 28a becomes
This makes it disconnected from the rotor 21a.

On the other hand, the lower passage 24 formed between the intermediate guide plate 28 and the lower guide plate 29 is narrowed to a position closer to the center in the width direction by the curved guide surface 35a of the flow path forming member 35, and then It passes through the back side of the curved portion 28a and communicates with the second tongue portion 32 and the second scroll portion 34.

With this configuration, the air passage 22 connects the first tongue portions 31.31 and the first tongue portions located on both sides in the width direction.
The upper passage 23 from the scroll portion 33, 33 passes between the upper guide plate 27 and the intermediate guide plate 28 and reaches the upper Suita mouth 25, and from the second tongue portion 32 and the second scroll portion 34 to the bent portion 28a. The lower passage 24 that passes through the back side and reaches the lower Suita mouth 26 is divided into two upper and lower passages.

In FIG. 1, the reference numeral 30 indicates each heat exchanger unit 11,
This is a partition plate arranged to divide 12.13 in the width direction.

Next, the operation of the air conditioner 1 configured as described above will be explained using heating operation as an example.

First, each heat exchanger unit i 1, 12, 1 of the heat exchanger 10
3, when only the second heat exchanger unit 12 is operated and the operation of the first heat exchanger unit II and the third heat exchanger unit 13 is stopped, heat exchange is performed from the suction port 50 of the casing 20. Of the indoor air A1 drawn into the container 10 side, only the air that has passed through the second heat exchanger unit 12 is air-conditioned air A3 (warm air).
The air that has passed through the other first heat exchanger unit +1 and third heat exchanger unit 13 is sucked into the cross-flow blower 21 side as unconditioned air A.

The conditioned air A3 passes through the lower passage 24 and is blown out indoors from the lower outlet 26, and the unconditioned air A3 passes through the upper passage 23 and is blown out indoors from the upper outlet 25. In this case, at the introduction portion to each passage 23, 24, the conditioned air A3 introduced into the lower passage 24 located on the lower side in the vertical direction is directed relatively downward,
Further, since the unconditioned air A3 introduced into the upper passage 23 located at the upper side in the vertical direction is directed relatively upward, each passage 23.
24 becomes smoother, and passage resistance is reduced as much as possible.

In addition, on the indoor side, unconditioned air A located on the upper side,
Since the air-conditioned air A3 located at the lower side is also low temperature,
The conditioned air A3 is suppressed from above by the unconditioned air A, and its floating phenomenon is suppressed as much as possible, and as a result, the difference in temperature between the upper and lower parts of the room is minimized to provide comfortable heating. It will be realized.

That is, in the air conditioner J of this embodiment, by devising the passage configuration of the air passage 22, a single cross-flow blower 21 can blow out air at different temperatures in two downward directions, and air with no temperature difference. It is possible to blow air in two directions, up and down, respectively, and the device is more compact than, for example, a conventional configuration in which two blowers are used to blow out air at different temperatures in two directions. This means that it is easy to reduce the cost or reduce the cost.

On the other hand, each heat exchanger unit 11.12.13 of the heat exchanger 10
When operating at the same time, the single heat exchanger 11, 1
The conditioned air Aa that has undergone heat exchange in step 2.13 is blown out simultaneously from both the upper outlet 25 and the lower outlet 26. Therefore, in this case, heating starts up particularly well. In addition, in this case, each heat exchanger alone + 1.
Since the refrigerant pipe lengths of 12.13 and 12.13 are set to be almost the same (in other words, the internal resistance of each heat exchanger unit 11 and 12.13 is approximately the same), each heat exchanger unit 11 , 12 and 13 in the same way, allowing efficient heating (or cooling).

Furthermore, as in this embodiment, the heat exchanger 10 is divided into individual heat exchangers 11, 12, 13, and each heat exchanger 11, 12, . The air conditioning of the air conditioner 1 can be achieved by selectively operating the heat exchangers 11, 12 and 13 by creating a difference in the capacity of f3, and by involving this with the rotational speed control of the cross-flow blower 21. Variations can be further expanded. As a result, it becomes possible to ensure more comfortable air conditioning by carefully selecting the air conditioning characteristics that are optimal for the indoor environment.

Second Embodiment FIG. 2 shows an air conditioner 1 according to an embodiment of the invention as claimed in claims 1 and 5 of the present application. This air conditioner
In this case, the configuration of the cross-flow blower 2I and the air passage 22 is the same as the above-mentioned No. 1.
The structure of the heat exchanger IO and the method of generating and introducing air at different temperatures may be the same as those of the embodiment. That is, in this embodiment, the heat exchanger 10 is integrally constructed without being divided, and a pair of left and right passage selection mechanisms 40 and 40, which will be described later, are provided in the air passage 22 on the upstream side of the cross-flow blower 21. are placed.

That is, in this embodiment, at positions corresponding to the boundaries between the first tongue part 31 and the second tongue part 32 and the boundaries between the first scroll part 33 and the second scroll part 34, there are A pair of left and right side plates 42, 42 are provided, which are rotatable in the left and right directions around the center.
0a and 20a each have a side opening 36 of a predetermined size.
36 respectively, and each side opening 36
Side plates 42 and 42 that are rotatable in the left and right directions centering on the upper end side of the side opening 36 are attached to the inside positions of the side openings 36, and one side plate 42, a partition plate 41, and the other side plate 42 correspond to each other. and the partition plate 41 constitute passage selection mechanisms 40 and 40, respectively. and,
Of the partition plate 41 and side plates 42 of the passage selection mechanism 40, the partition plate 41 is erected substantially perpendicular to the axial direction of the rotor 21a, as shown by the chain line (reference numeral 41') in FIG. In this condition, the air passage 22
are divided in the left and right direction, and the side plates 42 are configured so that they can close the side opening 36 when brought into contact with the casing side surface 20a, as shown by chain lines (reference numeral 42') in FIG. has been done.

The partition plate 41 and the side plate 42 are in a state in which the partition plate 41 is rotated outward in the width direction and the side plate 42 is rotated inward in the width direction by a predetermined angle, as shown by the solid line in the third frame. In this case, the distal end of the partition plate 41 and the distal end of the side plate 42 abut each other to form one partition wall. In this state, the side opening 36 is communicated with the upper passage 23 through the first tongue portion 31 and the first scroll portion 33.

In the following, for convenience of explanation, the path selection mechanism 4 will be referred to as the state in which the partition plate 41 and the side plate 42 are set to the positions shown by the chain lines.
0, and the state set to the position shown by the solid line is called the second position of the passage selection mechanism 40. Further, a specific driving mechanism of this passage selection mechanism 40 will be described later.

According to the air conditioner 1 configured in this way, when the passage selection mechanisms 40 and 40 are both set to the first position, the conditioned air A3 from the heat exchanger 10 is routed between the upper outlet 25 and the lower outlet. The air is blown out from both side blow-off ports 26. In this case, since the air passage 22 is divided in the width direction on the upstream side of the cross-flow blower 21 by the partition plates 41 and 41, the conditioned air A from the heat exchanger 10 is distributed between the upper passage 23 and the lower passage without being biased. Although the configuration is such that the air-conditioned air A3 is introduced into the passage 24 side in a divided manner and introduced from a single heat exchanger 10 into the two upper and lower passages 23.24, the air-conditioned air A3 is introduced in the width direction as much as possible. It can be blown out evenly.

On the other hand, when both passage selection mechanisms 40 and 40 are set to the second position, the conditioned air A from the heat exchanger 10 is
3 is guided by each passage selection mechanism 40, 40, the entire amount thereof is collected at the center side in the width direction, and is introduced into the lower passage 24 side through the second tongue part 32 and the second scroll part 34, and is introduced into the lower passage 24 side. It is blown into the room from the outlet 26. On the contrary,
Indoor air A is introduced into the left and right ends of the rotor 21a through side openings 36 and 36 of the casing side surface 20a, respectively. Then, this indoor air A passes through the upper passage 23 and is turned into unconditioned air A from the lower Suita outlet 26.

It is blown out into the room. Therefore, for example, during heating operation, the conditioned air A is blown out from the lower outlet 26.
3 (warm air) is suppressed by the unconditioned air A blown out from the upper outlet 25, and the floating phenomenon of the air conditioned air A is prevented as much as possible.

That is, in the case of this embodiment, as in the case of the first embodiment, the single cross-flow blower 21 makes it possible to blow air at different temperatures in two directions, up and down. Since the heat exchanger 10 has a single configuration, the full capacity of the heat exchanger 10 can be effectively utilized even when air of different temperatures is blown in two directions, which makes heating more efficient. This provides the advantage of being able to drive.

Incidentally, FIGS. 4 to 6 show an example of a drive mechanism for the passage selection mechanism 40. This includes a partition plate 41 whose lower end is pivotally connected by a pivot member 43, and a side plate 42 whose upper end is pivotally connected by a pivot member 43.
The linker 45 is connected to the partition plate 41 and the side plate 42 through slide support members 46 and 46 that can be slidably supported, and the linker 45 is rotated to the center position of the linker 45. It is configured by attaching a motor 44 for causing the movement.

Therefore, when the passage selection mechanism 40 is set to the first position as shown in FIG. are slide support members 46.4 at both ends thereof.
6 moves while sliding the partition plate 41 and side plates 42, and gradually tilts the partition plate 41 and side plates 42 inward.

Finally, when the tip of the partition plate 4I and the tip of the side plate 42 abut each other as shown in FIG. 6, the second position is set.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of essential parts of an air conditioner according to a first embodiment of the present invention, FIG. 2 is a system diagram of an air conditioner using the air conditioner shown in FIG. 1 as an indoor unit, and FIG. The figure is the second
Perspective views of main parts of the air conditioner according to the embodiment, FIGS. 4 to 6
The figure is an explanatory diagram of the operation of the partition plate drive mechanism shown in FIG. 3. ! ... Air conditioner 2 ... Outdoor unit 3 ... Compressor 4 ... Expansion valve 5 ... Accumulator 9 ... Controller 10 ... Heat exchanger 11 ...First heat exchanger unit 12...Second heat exchanger unit 13...Third heat exchanger unit 14...First switching valve 15...Second switching valve 16...No. 3 switching valves 17 to 19...refrigerant piping 20...casing 2...crossflow blower 22...air passage 23...upper passage 24...oil tank 25...upper outlet 26... Lower air outlet 27... Upper guide plate 28... Intermediate guide plate 29... Lower guide plate 30... Partition plate 31... First tongue part 32... Second tongue part 33. ...First scroll part 34...Second scroll part 35...Flow path forming member 36...Side opening 40...Passage selection mechanism 41...Partition plate 42...Side plate 43... Pivot support member 44...Motor 45...Linker 50...Suction port 56...Slide support member Z...Air conditioner

Claims (1)

[Claims] 1. A rotor (2) having a large number of blades extending in the axial direction provided in the air passage (22) on the downstream side of the heat exchanger (10) in the circumferential direction.
1a) and disposed on the outer circumferential side of the rotor (21a) at predetermined intervals in the circumferential direction.
, 32) and scroll portions (33, 34), the blowing direction of airflow is defined by a cross-flow blower (21), the air passage (22) being connected to the cross-flow blower ( An upper passageway (21) is divided vertically on the downstream side of the passageway (21) and has an air outlet (25) located above
3) and the lower passageway (24) where the air outlet (26) is located on the lower side.
), and the upper passage (23) and the lower passage (24) face different positions in the axial direction of the cross-flow blower (21), and the cross-flow blower (
21) tongue portions (31, 32) and scroll portions (33, 3
4) is shifted in the circumferential direction so that the portion corresponding to the upper passage (23) is located further forward in the rotational direction of the rotor (21a) than the portion corresponding to the lower passage (24). An air conditioner characterized by being formed by 2. In claim 1, the heat exchanger (10) is connected to an upper passage (23) and a lower passage (24) of the air passage (22).
), respectively corresponding to the cross-flow blower (21).
A plurality of single heat exchangers (11 to 13) divided in the axial direction of
), and each heat exchanger itself (11 to 13
1. An air conditioner characterized in that refrigerant pipes (17 to 19) of ) can be selectively controlled to open and close. 3. The air conditioner according to claim 2, wherein the heat exchangers (11 to 13) of the heat exchanger (10) have different heat exchange capacities. 4. In claim 2, each of the heat exchangers (11 to 1
3) An air conditioner characterized in that the length of the refrigerant pipes (17 to 19) is set to be substantially constant. 5. In claim 1, between the heat exchanger (10) and the cross-flow blower (21), in the first position, both the upper passage (23) and the lower passage (24) are connected to the heat exchanger (10) and the cross-flow blower (21). While facing the heat exchanger (10), in the second position, only the lower passage (24) faces the heat exchanger (10).
An air conditioner characterized in that a passage selection mechanism (40) is arranged so that the upper passage (23) can face the indoor side.