JPH106760A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize an air conditioner while maintaining excellent heat exchanging performance by providing a heat exchanger in the passing wind direction changing part of a passage for passing heat exchanging air. SOLUTION: A blower 3 and a heat exchanger 4 are provided in a passage 2. The heat exchanger 4 includes a pair of upper and lower tanks 5 and 6 and a multiple tube heat exchanger for communicating the upper and lower tanks with each other by a circular pipe 7 having a thin pipe. A passing wind direction changing part 8 for changing the direction of heat exchanging air blown from the blower 3 is formed in the passage 2. The upper and lower tanks 5 and 6 of the heat exchanger 4 are formed to be along the changing part 8 and disposed therein. A part of the wall of the passing direction changing part 8 is inclined in a presinbed direction and then direction is provided to passing heat exchanging air. The heat exchanger 4 is extended up to a main stream forming part 9 for re-forming the main stream of heat exchanging air passing through the passing wind direction changing part 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an air conditioner used for a vehicle such as an automobile.

[0002]

2. Description of the Related Art Conventionally, as a vehicle air conditioner, for example, those shown in FIGS. 8 and 9 are known.
In FIG. 8, reference numeral 100 denotes a vehicle air conditioner.
The vehicle air conditioner 100 has a heat exchange air passage 101 in which a blowing means 102 (for example, a blower) and a heat exchanger 103 are provided.

In the vehicle air conditioner 100 as described above, the heat exchange air blown by the blowing means 102 is supplied to the ventilation direction changing portion 104 of the passage 101 as shown in FIG.
, And flows into the heat exchanger 103. Specifically, in the ventilation direction changing unit 104, the wall 105 forming the passage 101 is gradually inclined toward the heat exchanger 103 as shown in FIG. Is provided with directivity toward the heat exchanger 103. The heat exchange air that has passed through the heat exchanger 103 is sent to, for example, a heater (not shown) or the like as needed.

[0004] In the vehicle air conditioner 107 shown in FIG. 9, the wall 106 of the passage 101 in the ventilation direction changing portion 104 is formed so as to approach the direction of the heat exchanger 103 in a multi-step manner so as to allow passage. The directivity in the direction of the heat exchanger 103 is given to the heat exchange air to be heated.

[0005]

However, in the conventional air conditioners 100 and 107, in order to change the direction of the heat exchange air passing through the passage 101, a special space is provided in the passage 101. It is necessary to provide the ventilation direction changing portion 104 as the above, and further provide the heat exchanger 103 and the like on the downstream side in the passage direction of the heat exchange air. Therefore, the extension and expansion of the passage 101 may increase the size of the entire apparatus. is there. On the other hand, in recent years, in the field of vehicle air conditioners, further downsizing of the devices has been desired, and the above-described conventional devices may not be able to sufficiently meet the demand for downsizing.

In order to respond to the demand for the above miniaturization, if the entire apparatus is simply miniaturized, a sufficient space cannot be secured in the ventilation direction changing portion, and there is a possibility that windage loss and noise increase.

An object of the present invention is to provide an air conditioner which can sufficiently respond to a demand for downsizing while maintaining excellent heat exchange performance.

[0008]

In order to solve the above-mentioned problems, an air conditioner according to the present invention is characterized in that a heat exchanger is provided at a ventilation direction changing portion of a passage through which heat exchange air passes. Consists of

It is desirable that the heat exchanger is extended to a main flow forming portion where a main flow of the heat exchange air after passing through the ventilation direction changing portion is formed.

The heat exchanger is not particularly limited, but is preferably a multi-tube heat exchanger having a thin tube and / or a finned thin tube.

It is preferable that the thin tube and / or the finned thin tube have a function of guiding air for heat exchange.

In the air conditioner as described above, a heat exchanger is provided at the ventilation direction changing portion of the passage through which the heat exchange air passes, that is, at the ventilation direction changing portion along the shape of the changing portion. . Therefore, while performing the heat exchange with the heat exchange air in the ventilation direction changing portion, the ventilation direction can be changed in the heat exchanger body at the same time, and a desired directivity can be provided, so that the passage space can be effectively used. It can be used, and downsizing of the entire device can be achieved.

[0013] The heat exchanger is a multi-tube heat exchanger having a thin tube and / or a finned thin tube, and a method for providing the thin tube or the like with a ventilation guide function of heat exchange air is not particularly limited. However, for example, in a heat exchanger having fins and tubes as thin tubes, the arrangement direction of the fins is changed according to the arrangement of the circular tubes as thin tubes and / or the arrangement of the fins in the multi-tube heat exchanger. The setting direction can be easily given by optimally designing each.

Further, if the heat exchanger is extended to the main flow forming portion where the main flow of the heat exchange air after passing through the airflow direction changing portion is formed, a desired directivity can be reliably given to the heat exchange air. After that, the main flow is formed, so that more effective ventilation direction control becomes possible.

Further, since a predetermined change in the ventilation direction can be achieved while achieving a reduction in the size of the apparatus by reducing the size of the passage, there is no increase in windage or noise when the conventional apparatus is simply reduced in size.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the air conditioner of the present invention will be described below with reference to the drawings. FIG.
1 shows an air conditioner 1 according to a first embodiment of the present invention. The air conditioner 1 has a passage 2 through which heat exchange air passes. In the passage 2, a blower 3 as a blowing means and a heat exchanger 4 are provided. The heat exchanger 4 has a pair of upper and lower tanks 5 and 6, and is formed of a multi-tube heat exchanger in which the upper and lower tanks 5 and 6 communicate with each other by a circular tube 7 as a thin tube. In the passage 2, a ventilation direction changing portion 8 for changing the direction of the air for heat exchange blown by the blower 3 is formed, and the upper and lower tanks 5 and 6 of the heat exchanger 4 are connected to the ventilation direction changing portion. 8 and is arranged in the ventilation direction changing portion 8. Ventilation direction changing part 8
By inclining a part of the wall forming the passage 2 in a predetermined direction, it is possible to impart directivity indicated by an arrow to the heat exchange air passing therethrough.

The heat exchanger 4 also extends to a main flow forming portion 9 where the main flow of the heat exchange air that has passed through the ventilation direction changing portion 8 is re-formed.

In the air conditioner 1 according to this embodiment,
When the heat exchange air flows through the passage 2 by the blower 3 and flows into the heat exchanger 4 of the ventilation direction changing portion 8, the ventilation direction is regulated by the shape of the passage 2.
The directivity as shown by the arrow is given. Therefore,
Since the heat exchange of the air for heat exchange can be performed in the heat exchanger 4 and at the same time, a predetermined directivity can be given to the ventilation direction, the passage is greatly shortened as compared with the conventional apparatus, and the entire apparatus can be downsized. .

Further, since the heat exchanger 4 extends to the main flow forming portion 9, the main flow is re-formed after the heat exchange air passing through the heat exchanger 4 is given a desired directivity. .
Therefore, the ventilation direction of the heat exchange air can be more effectively controlled.

Further, in the air conditioner 1 according to the present invention, the size of the air conditioner 1 is reduced by shortening the passage 2 while securing a sufficient space for the ventilation direction changing portion 8, thereby increasing windage loss and noise. Can be prevented.

FIG. 2 shows an air conditioner 10 according to a second embodiment of the present invention. The air conditioner 10 has a heat exchange air passage 2 in which a blower 3 and a heat exchanger 11 are provided. The heat exchanger 11 has a pair of upper and lower tanks 12, 13.
Numerals 3 are connected to each other by a circular pipe 7. Passage 2
Inside, a ventilation direction changing portion 14 for changing the direction of the air for heat exchange blown by the blower 3 is formed, and the heat exchanger 11 is disposed in the ventilation direction changing portion 14.
By forming the wall forming the passage 2 in a multi-stage shape, the ventilation direction changing section 14 can impart directivity as indicated by an arrow to the passing heat exchange air.

The heat exchanger 11 is provided with a ventilation direction changing section 1.
The main flow of the heat exchange air that has passed through 4 extends to a main flow forming section 9 where the main flow is reformed.

Also in this embodiment, the ventilation direction changing section 1
By providing the heat exchanger 11 in the heat exchanger 4, the heat exchange of the air for heat exchange can be performed while the desired directivity can be given to the air for heat exchange at the same time. Miniaturization can be achieved. Further, by extending the heat exchanger 11 to the main flow forming section 9, more effective ventilation direction control becomes possible.

FIGS. 3 and 4 show an air conditioner 15 according to a third embodiment of the present invention. The air conditioner 15 has a heat exchange air passage 2, and a blower 3, a heat exchanger 16, and a heater 17 are provided in the passage 2. Further, branch passages 18, 19, and 20 are branched from the passage 2, and the heat exchange air that has passed through the heat exchanger 16 and the heater 17 flows into one or a plurality of branch passages. I have.

The heat exchanger 16 includes a pair of upper and lower tanks 21,
The upper and lower tanks 21 and 22 are connected to each other by a tube 23 as a thin tube. The tube 23 is provided with fins 24.

As shown in FIG. 3, the heat exchanger 16 is provided in the ventilation direction changing section 25. Heat exchanger 1
The reference numeral 6 extends to the pouring section 9.

The heater 17 is provided with a rotary damper 26, and the rotation of the damper 26 causes the heat exchanger 16 to rotate.
The flow of the heat exchange air after passing through the heater 17 is controlled, and each mode such as cooling and heating can be set.

In this embodiment, by adjusting the arrangement direction of the fins 24 of the tubes 23 of the heat exchanger 16, the heat exchanger 16 itself has a ventilation guide function and passes through the heat exchanger 16. The heat exchange with the heat exchange air is simultaneously performed while imparting the directivity as shown by the arrow in FIG. 3 to the heat exchange air. Therefore, also in the present embodiment, the passage 2 can be reduced, and downsizing of the apparatus can be achieved while maintaining excellent performance.

FIG. 5 shows an air conditioner 27 according to a fourth embodiment of the present invention. The air conditioner 27 has a heat exchange air passage 2 in which a blower 3 and a heat exchanger 28 are provided. The heat exchanger 28 has a pair of upper and lower tanks 29, 30.
Are connected to each other by a circular tube 7. In passage 2,
A ventilation direction changing portion 31 for changing the wind direction of the heat exchange air blown by the blower 3 is formed.
8 is provided in the ventilation direction changing section 28. The ventilation direction changing portion 28 is formed by bending the passage 2 as shown in FIG. 5 so that the passing heat exchange air can be given a directivity indicated by an arrow. Further, the heat exchanger 28 extends to the main flow forming portion 9 where the main flow of the heat exchange air after passing through the ventilation direction changing portion 9 is reformed.

Also in the present embodiment, the direction of the heat exchange air passing through the heat exchanger 28 is regulated by the ventilation direction changing portion 31 formed by curving the passage 2 and the direction of the air is indicated by the arrow in FIG. The property is given and heat exchange is performed. Therefore, the passage 2 can be shortened, and the size of the apparatus can be reduced.

FIG. 6 shows an air conditioner 32 according to a fifth embodiment of the present invention. The air conditioner 32 has a passage 2, and a heat exchanger 33 is provided in the passage 2. The heat exchanger 33 has a pair of upper and lower tanks 34 and 35, and the upper and lower tanks 34 and 35 are connected to each other via the circular pipe 7. In the passage 2, a ventilation direction changing portion 36 for changing the wind direction of the heat exchange air is provided, and the heat exchanger 33 is provided in the ventilation direction changing portion 36. The heat exchanger 33 extends to the main flow forming portion 9 where the main flow of the heat exchange air after passing through the ventilation direction changing portion 36 is re-formed.

Also in this embodiment, the ventilation direction changing unit 3
The air for heat exchange passing through 6 is given a desired directivity while being heat-exchanged inside the heat exchanger 33 provided in the section 36, so that the passage 2 can be shortened, and the apparatus can be downsized. can do.

FIG. 7 shows an air conditioner 37 according to a sixth embodiment of the present invention. The air conditioner 37 has the passage 2, and a heat exchanger 38 is provided in the passage 2. The heat exchanger 38 has a pair of upper and lower tanks 39 and 40, and the upper and lower tanks 39 and 40 are connected to each other via the circular pipe 7. Further, a ventilation direction changing portion 41 is provided in the passage 2. In this embodiment, the ventilation direction changing portion 41 is formed in a substantially L-shaped cross section as shown in FIG. Then, the heat exchanger 38 is provided to the ventilation direction changing portion 41.
Is provided. The heat exchanger 38 includes a ventilation direction changing unit 4.
It extends to the main flow forming section 9 where the main flow of the heat exchange air after one passage is re-formed.

Even in the configuration as in the present embodiment, the ventilation direction changing section 41 can simultaneously perform heat exchange while imparting desired directivity to the heat exchange air, so that excellent performance can be maintained. The size of the device can be reduced.

[0035]

As described above, according to the air conditioner of the present invention, since the heat exchanger is provided in the ventilation direction changing portion, the size of the device can be reduced while maintaining excellent performance. Can be.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an air conditioner according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of an air conditioner according to a second embodiment of the present invention.

FIG. 3 is a cross-sectional view of an air conditioner according to a third embodiment of the present invention.

4 is a cross-sectional view of the air conditioner of FIG. 3 taken along line IV-IV.

FIG. 5 is a cross-sectional view of an air conditioner according to a fourth embodiment of the present invention.

FIG. 6 is a cross-sectional view of an air conditioner according to a fifth embodiment of the present invention.

FIG. 7 is a cross-sectional view of an air conditioner according to a sixth embodiment of the present invention.

FIG. 8 is a cross-sectional view of a conventional air conditioner.

FIG. 9 is a cross-sectional view of another conventional air conditioner.

[Explanation of symbols]

 1, 10, 15, 27, 32, 37 Air conditioner 2 Passage 3 Blower 4, 11, 16, 28, 33, 38 Heat exchanger 5, 12, 21, 29, 34, 39 Upper tank 6, 13, 22, 30, 35, 40 Lower tank 7 Circular tube 8, 14, 25, 31, 36, 41 Ventilation direction changing portion 9 Main flow forming portion 17 Heater 18, 19, 20 Branch passage 23 Tube 24 Fin 26 Damper

Claims (4)

[Claims] 1. An air conditioner, wherein a heat exchanger is provided at a ventilation direction changing portion of a passage through which heat exchange air passes. 2. The air conditioner according to claim 1, wherein the heat exchanger extends to a main flow forming portion where a main flow of the heat exchange air after passing through the ventilation direction changing portion is formed. 3. The air conditioner according to claim 1, wherein the heat exchanger is a multi-tube heat exchanger having a thin tube and / or a finned thin tube. 4. The air conditioner according to claim 3, wherein the thin tube and / or the finned thin tube have a ventilation guide function for heat exchange air.