JPH06307671A - Air conditioner - Google Patents

Abstract

PURPOSE:To provide an air conditioner having a sprinkling mechanism in which a structure is simplified and sprinkling capacity is improved. CONSTITUTION:A partition plate 14 for vertically partitioning a casing 1 is provided in the casing 1, an indoor unit B is formed in one side, and an outdoor unit C is formed in the other side. A single crossflow fan 7 is passed through an air flow passage D of the unit B and an air flow passage D of the unit C to forcibly feed the air in the passage D by the fan 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner in which an indoor unit and an outdoor unit are integrated, and more particularly to a mechanism for sprinkling drain water as condensed water generated from an indoor heat exchanger on the outdoor heat exchanger. The present invention relates to an air conditioner provided.

[0002]

2. Description of the Related Art Conventionally, many wind-type air conditioners of this type have been found, and an example thereof is that described in Japanese Utility Model Laid-Open No. 61-123334.

As shown in FIGS. 7 and 8, such an air conditioner A is partitioned and formed by a casing a, and a partition plate b is provided in the casing a and divided into an indoor side c and an outdoor side d. It is formed. An indoor heat exchanger e and an indoor fan f are provided on the indoor side c, while an outdoor heat exchanger g and an outdoor fan h are provided on the outdoor side d. Further, at the bottom portion i of the outdoor side d, water is sprinkled to scoop up the drain water that is generated during the cooling operation and flows down from the indoor heat exchanger e and collects at the bottom portion i to be sprayed to the outdoor heat exchanger g. A device j is provided, and the sprinkler device j is composed of a sprinkling disc k and a sprinkling motor l.

[0004]

However, such an air conditioner has the following problems.

Since fans are provided separately on the indoor side and the outdoor side, motors for driving the fans are also required individually, which complicates the structure and causes a cost increase, a failure, or an increase in size. .

The structure is further complicated by further providing a sprinkler for sprinkling water on the outdoor heat exchanger.

Such a sprinkler has a structure in which the water level of the drain water collected at the bottom affects the water sprinkling ability, that is, the amount of water sprinkled increases or decreases depending on the height of the water level.
Since the outdoor heat exchanger as a condenser is cooled and the heat exchange efficiency is improved by sprinkling this drain water, it is always necessary to use a sprinkler having a high sprinkling capacity to improve the performance of the air conditioner. Important to maintain.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and to provide an air conditioner having a water sprinkling mechanism having a simplified structure and an improved water sprinkling ability.

[0009]

In order to achieve the above-mentioned object, an air conditioner according to the present invention is provided with a partition plate for vertically partitioning the interior of a casing to partition an indoor unit on one side and the other on the other side. The outdoor unit is partitioned into
A single cross-flow fan is provided so as to pass through the air passage of the indoor unit and the air passage of the outdoor unit, and the air is forcedly blown in each air passage by the cross-flow fan.

In order to make the drain water stored in the outdoor unit sprinkle on the outdoor heat exchanger, coaxially with the cross-flow fan so as to be rotatable in association with the cross-flow fan hung on the air passage of the outdoor unit. It is provided with a pump that can rotate in conjunction with the cross flow fan.

Furthermore, a sprinkling member for capturing the drain water and sprinkling it on the outdoor heat exchanger so as to project outward in the radial direction from the outer periphery of the cross flow fan that is laid over the air passage of the outdoor unit, It is provided coaxially with the cross flow fan so that it can rotate in conjunction with the cross flow fan.

[0012]

With the above construction, since the uniaxial cross flow fan is provided on the indoor side and the outdoor side, the structure can be greatly simplified including that only one motor is required to drive the cross flow fan. In addition, since the mechanism for spraying water is interlocked with the cross flow fan, the water spraying device, which is conventionally provided as a separate body, can be omitted, and the structure can be similarly simplified.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1, the air conditioner A is partitioned and formed by a vertically long and substantially integral casing 1, and a partition plate 14 is provided inside the casing 1 so as to partition the upper and lower sides. In this way, the indoor unit B is partitioned and formed in the upper casing 2 divided by the partition plate 14, and the outdoor unit C is partitioned and formed in the lower casing 3. A wind air conditioner is used as an example of this type of air conditioner A.

As shown in FIG. 2, inside the upper casing 2, an indoor heat exchanger 4 serving as an evaporator is curved in a substantially L-shape so that a left side surface portion (right side in the drawing) and a front surface portion (in the drawing). A left half of (upper side) is provided along this, and an outer side surface portion of the indoor heat exchanger 4 is opened to form an intake port 5. The intake port 5 has an area substantially the same as the area of the indoor heat exchanger 4 and has a high intake efficiency because the area is formed large. A fan motor 6 is provided substantially at the center of the upper surface (see FIG. 1) with its rotation axis facing downward. The rotating shaft of the fan motor 6 penetrates through the holes of the partition plate 14 that partition the indoor unit B and the outdoor unit C with a gap 10 in between, and the upper and lower parts of the casing 1 are suspended and the lower end of the lower casing 3 is covered. Bottom 3a
A cross-flow fan 7, which is axially supported in the vicinity, is connected. The cross-flow fan 7 is divided into upper and lower parts by a disk 7a at the height of the partition plate 14, and an indoor cross-flow fan 8 is formed on the upper side and an outdoor cross-flow fan 13 is formed on the lower side. Therefore, the indoor cross-flow fan 8 is forced to blow air to the blower passage D described later in the upper casing 2. Further, the right side of the front surface of the upper casing 2 is opened to form an air supply port 9. On the other hand, the space between the intake port 5 and the indoor heat exchanger 4 to the indoor cross-flow fan 8 and the space from the indoor cross-flow fan 8 to the air supply port 9 are spanned by the upper and lower parts of the upper casing 2 to be completely partitioned. An upper shield plate 9a is provided and partitioned to form a passage, and the inside of the upper shield plate 9a serves as an upper air passage D. Therefore, the indoor air is circulated in the upper air passage D and forcedly blown, that is, the indoor air sucked from the intake port 5 by the indoor cross-flow fan 8 is heat-exchanged by the indoor heat exchanger 4. After being blown, it is blown into the room from the air supply port 9 through the indoor cross-flow fan 8. Therefore, the indoor unit B is formed by having such a configuration in the upper casing 2.

Next, in the lower casing 3, as shown in FIG. 3, an outdoor heat exchanger 11 as a condenser is formed into a substantially box shape, and the rear side (lower side in the figure) on the right side ( The left side of the figure) is provided along this line up to about 3/4, and the outer rear surface portion of the outdoor heat exchanger 11 is opened to form the outside air intake port 12. The outdoor air intake port 12 and the outdoor heat exchanger 11
Since the area is almost the same and is formed large,
Similar to the above, high intake or heat exchange efficiency is achieved. Further, an outdoor cross-flow fan 13 is formed so as to pass through the partition plate 14 and extend vertically inside the lower casing 3, and the lower end is pivotally supported near the bottom portion to forcibly blow air to the air passage D in the lower casing 3. . Further, about 1/4 of the left side (right side in the figure) of the back surface of the lower casing 3 is opened to form an exhaust port 16. On the other hand, a lower shield plate 15 is provided so as to bridge the upper and lower parts of the lower casing 3 between the outside air intake port 12 and the outdoor cross-flow fan 13 chamber or between the outdoor cross-flow fan 13 and the exhaust port 16. It is divided into a passage. Therefore, a portion between the outside air intake port 12 and the outdoor cross flow fan 13 to the exhaust port 16 becomes a lower ventilation passage D, and the outside air is circulated in the lower ventilation passage D. That is, the outdoor cross-flow fan 13 causes the outside air intake port 12
The outside air sucked in from the outside is heat-exchanged by the outdoor heat exchanger 11 and then exhausted to the outside from the exhaust port 16 through the outdoor cross flow fan 13. Therefore, such an arrangement is provided in the lower casing 3 to form the outdoor unit C.
It should be noted that this configuration has an advantage that the rear surface portion does not project to the outside, and the window can be closed in the case of the wind air conditioner.

By the way, a compressor 26 is provided inside the lower casing 3 by being completely partitioned by the lower shield plate 15, and the compressor 26, the indoor heat exchanger 4 and the outdoor heat exchanger 11 are provided with copper pipes (not shown). And the refrigerant is circulated to form a refrigeration cycle.

As shown in FIG. 1, since the indoor cross-flow fan 8 and the outdoor cross-flow fan 13 are separately formed in a single cross-flow fan 7, two fan motors 6 which are conventionally provided independently are provided. As a result, the number of parts can be reduced.
However, with such a configuration, the indoor cross-flow fan 8 and the outdoor cross-flow fan 13 rotate at the same number of rotations, and particularly when the rotation of the indoor cross-flow fan 8 is set to a low speed in order to adjust the temperature inside the room,
There is a problem in securing the amount of heat exchange due to the decrease in the air flow rate to the outdoor heat exchanger 11. Therefore, the length of the outdoor cross-flow fan 13 is set to be twice as large as the length of the indoor cross-flow fan 8 so that the heat exchange amount of the outdoor heat exchanger 11 always exceeds the heat exchange amount of the indoor heat exchanger 4. Is set. So from this,
Even if the indoor cross-flow fan 8 is forced to operate at a low speed, the heat exchange amount of the outdoor heat exchanger 11 is sufficiently secured and this problem is solved. Besides, this problem can be easily solved by properly setting the number and shape of the fins of these fans or the shapes of the indoor heat exchanger 4 and the outdoor heat exchanger 11.

Further, the air conditioner A has a water sprinkling structure for sprinkling drain water as condensed water generated in the indoor heat exchanger 4 to the outdoor heat exchanger 11. This sprinkling structure will be described below.

As shown in FIGS. 1 and 2, in the upper casing 2, a substantially dish-shaped upper drain is provided below the indoor heat exchanger 4 so that all drain water dripping from the indoor heat exchanger 4 can be collected. A water pan 22 is provided. This upper drain water receiver 22
An arc plate 22a is provided on the side of the cross flow fan 7, and a gap 10 for dropping drain water is formed between the arc plate 22a and the cross flow fan 7. A water sprinkling member 25 made of a disk 7a is provided above the lower cross-flow fan 13 so as to receive the gap 10 from below. The water sprinkling member 25 has a radius larger than the maximum radius of the lower cross-flow fan 13 so as to project radially outward from the outer periphery of the lower cross-flow fan 13, and is connected coaxially with the lower cross-flow fan 13 to form a lower cross-flow fan. It is possible to rotate in conjunction with 13.

A pump E is provided at the lower end 27 of the lower cross flow fan 13. As the pump E, an impeller 18 whose center is connected to the lower end shaft 7b of the cross flow fan 7 is provided. The impeller 18 has a plurality of substantially inverted triangular vane members 20 on the outer periphery slightly away from the center thereof, and the lower end portion of the vane members 20 is a lower drain water receiver 21 fixed to the bottom surface portion 3 a of the lower casing 3. Is located close to the receiving surface portion 21a. A support member 17 is provided which stands upright from the bottom surface portion 3a and supports the lower end shaft 7b slightly above the bottom surface portion 3a via a bearing 19. Further, the lower drain water receiver 21 is provided with a mortar-shaped water guide member 38 having a required clearance from the blade member 20 and surrounding the outer periphery thereof.
The water guide member 38 has an opening at its bottom to allow the drain water of the lower drain water receiver 21 to flow therethrough, and a nozzle portion 41 is formed on the upper side thereof. Furthermore, the nozzle portion 4
1 has one end connected to it and extends upward to extend the partition plate 1
A connecting pipe 23 that penetrates 4 and has the other end connected to the upper drain water receiver 22 is provided.

The action of the water sprinkling structure thus constructed will be described.

As described above, all drain water generated from the indoor heat exchanger 4 due to the cooling operation is collected in the upper drain water receiver 22. The collected drain water flows down through the gap 10 and drops on the water sprinkling member 25. In particular, the air conditioner A is in operation and the water sprinkling member 25 is rotating, and the drain water dropped from the outdoor heat exchanger 11 is captured by the water sprinkling member 25 and is also blown off by centrifugal force to cause the outdoor heat exchanger 11 to move. It will adhere without exception. As a result, the outdoor heat exchanger 11 is sprinkled with water and cooled.

Further, since the outdoor heat exchanger 11 is a condenser, the drain water attached to the outdoor heat exchanger 11 evaporates there. On the other hand, the outdoor heat exchanger 11 cannot be completely evaporated.
The drain water flowing down through the water is collected in the lower drain water receiver 21 without exception. Then, the drain water collected and collected is introduced into the water guide member 38 through the bottom opening thereof,
It is driven by the rotating blade member 20 and guided to the upper end portion along the side wall of the water guide member 38. In particular, by providing this mortar-shaped water guide member 38, it is possible to efficiently stir the drain water and greatly improve its pumping ability. Then, this drain water flows through the nozzle portion 41 and flows in the communication pipe 23, is pulled up and returned to the upper drain water receiver 22, and the above-described process is repeated.

Next, another embodiment of the present invention will be described.

As shown in FIG. 4, in this embodiment, the partition plate 14 is provided by partitioning the inside of the casing 31 into front and rear (the right side in the drawing is the front and the left side is the rear). The indoor unit B is partitioned and formed in the rear casing 32, and the outdoor unit C is formed in the rear casing 33.
Are sectioned.

Inside the front casing 32, there is provided a front partition plate 34 which further divides the front casing 32 into upper and lower parts. The compressor 26 is provided below the front partition plate 34 so as to be shielded. Further, an indoor fan motor 35 with its rotation axis facing upward, an indoor cross-flow fan 8 connected to the indoor fan motor 35, and
An indoor heat exchanger 4 as an evaporator is provided, and
The front surface is opened to form an intake port 5 and an air supply port 9. The indoor unit B is formed with such a configuration.

Further, in the rear casing 33, an outdoor heat exchanger 11 as a condenser is provided on the back surface (on the left side in the drawing) vertically and along the rear surface thereof, and a rotary shaft is provided substantially at the center of the upper surface. An outdoor fan motor 36 facing downward and an outdoor cross-flow fan 13 vertically connected to the outdoor fan motor 36 are provided, and a rear surface portion thereof is opened so that an outdoor air intake port 12 and an exhaust port 1 are provided.
6 (not shown) are formed respectively. The outdoor unit C is formed by such a configuration.

According to the structure of the indoor unit B and the outdoor unit C described above, two fan motors are provided and are the same as the conventional ones, but the indoor units are provided in the front casing 32 and the rear casing 33, respectively. Since B and the outdoor unit C are partitioned and formed, there is a difference in the water sprinkling structure formed in this embodiment. This sprinkling structure will be described in detail below.

As shown in FIG. 4, similarly to the above, in the front casing 32, in order to collect all the drain water dripping from the indoor heat exchanger 4, a substantial dish is provided at the lower part thereof at a predetermined interval. A front drain water catcher 37 is provided. One end is connected to the front drain water receiver 37, extends rearward and penetrates the partition plate 14, and the other end is formed downward, and a water conduit 24 is provided slightly outside the lower cross-flow fan 13. . A disc-shaped sprinkling member 25 is integrally connected to and coaxial with the outdoor lateral flow fan 13 at a substantially vertical center of the outdoor lateral flow fan 13 so as to receive the water conduit 24 from below. The sprinkling member 25 has a radius larger than the maximum radius of the outdoor cross-flow fan 13 so as to project outward in the radial direction from the outer periphery of the outdoor cross-flow fan 13, and rotates in conjunction with the outdoor cross-flow fan 13.

Further, as shown in FIG. 5, the outdoor lateral flow fan 1
A substantially inverted triangular blade member 20 as a pump E is directly provided by being integrally connected to the lower end portion 27 of 3. The lower end portion of the blade member 20 has a bottom surface portion 33 of the rear casing 33.
It is located close to the receiving surface 42a of the rear drain water receiver 42 fixed to a. Further, the rear drain water receiver 42 is provided with a mortar-shaped water guide member 38 having a required clearance from the blade member 20 and surrounding the outer periphery thereof. In the water guide member 38,
A communication hole 39 is provided in the lower side of the rear drain water receiver 4
No. 2 drain water is allowed to flow, and a nozzle portion 41 is formed on the upper side thereof. Then, the lower end shaft 7b of the outdoor cross-flow fan 13 stands upright from the rear drain water receiver 42.
A support member 17 that axially supports the bearing is provided slightly above the receiving surface portion 42a via the bearing 40. Further, a connecting pipe 23 is provided, one end of which is connected to the nozzle portion 41, extends upward, bends forward, penetrates the partition plate 14, and has the other end positioned on the front drain water receiver 37.

The action of the water sprinkling structure thus constructed will be described.

As described above, the drain water dripping from the indoor heat exchanger 4 is collected in the front drain water receiver 37 and is dropped on the water sprinkling member 25 along the water conduit 24. Then, the dropped drain water is scattered by the sprinkling member 25 and adheres to the outdoor heat exchanger 11, and the outdoor heat exchanger 11 is sprinkled and cooled.

Further, the drain water adhering to the outdoor heat exchanger 11 evaporates there, or flows down through the outdoor heat exchanger 11. The drain water that has flowed down is collected and stored in the rear drain water receiver 42 without exception. Then, the drain water is guided through the communication hole 39 into the water guiding member 38, and is driven by the rotating blade member 20 to be guided to the upper end portion along the side wall of the water guiding member 38. Then, this drain water flows through the nozzle portion 41 and flows through the communication pipe 23, is pulled up and returned to the front drain water receiver 37, and the above-described process is repeated.

On the other hand, FIG. 6 shows a modification of the water sprinkling member 25. As shown in the figure, the water sprinkling member 25 is formed by bending the outer peripheral end portion obliquely upward.
If the water sprinkling member 25 is formed in this way, the drain water dropped onto the water sprinkling member 25 can be sprayed higher, and the outdoor heat exchanger 11 can be sprinkled to the upper portion to increase the water sprinkling area and further improve the cooling capacity. it can.

According to the above-mentioned structure, even when the temperature of the outdoor heat exchanger 11 is low and the drain water sprinkled on the outdoor heat exchanger 11 is difficult to evaporate, the outdoor heat exchanger 11 is blown to the outdoor cross-flow fan 13, and thus the mesh-shaped outdoor heat exchanger 11 is provided. After passing through, the water is expelled to the outside through the exhaust port 16, and drain water can be effectively treated. When the amount of drain water generated from the indoor heat exchanger 4 is large, the drain water may overflow from the rear drain water receiver 42, but a float switch (not shown) is provided in the rear drain water receiver 42. This problem can be solved by providing a unit that detects the water level by means of water, and operates the outdoor fan motor 36 at high speed before overflow. Further, it is conceivable that the water level of the rear drain water receiver 42 may rise even after the cooling operation is finished, but in this case as well, a unit using the float switch may be provided to restart the outdoor fan motor 36. .

[0037]

The air conditioner according to the present invention exhibits the following excellent effects.

(1) The structure can be simplified and the cost can be greatly reduced.

(2) Since the water sprinkling capacity to the outdoor heat exchanger is improved, the cooling performance can be improved.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an embodiment of an air conditioner according to the present invention.

FIG. 2 is a plan view showing an indoor unit.

FIG. 3 is a plan view showing an outdoor unit.

FIG. 4 is a side sectional view showing another embodiment of the air conditioner according to the present invention.

FIG. 5 is an enlarged view of a main part showing a watering structure.

FIG. 6 is a view showing a modified example of the water sprinkling member.

FIG. 7 is a plan sectional view showing a conventional example.

FIG. 8 is a schematic cross-sectional perspective view showing a conventional example.

[Explanation of symbols]

 1 Casing 7 Cross-flow fan 14 Partition plate 25 Sprinkling member A Air conditioner B Indoor unit C Outdoor unit D Blower E Pump

Claims (3)

[Claims] 1. A partition plate for partitioning the casing into upper and lower parts is provided in the casing to form an indoor unit on one side and an outdoor unit on the other side to form an air passage for the indoor unit and an air passage for the outdoor unit. An air conditioner characterized in that a single cross-flow fan is provided so as to penetrate therethrough, and the cross-flow fan is configured to forcibly blow air in the respective air passages. 2. The drainage water stored in the outdoor unit is sprinkled on the outdoor heat exchanger by being coaxial with the crossflow fan so as to be rotatable in association with the crossflow fan hung over the air passage of the outdoor unit. The air conditioner according to claim 1, wherein the pump is provided. 3. A water sprinkling member for capturing the drain water and sprinkling it on the outdoor heat exchanger so as to project outward in the radial direction from the outer periphery of the cross flow fan that is laid over the air passage of the outdoor unit, The air conditioner according to claim 1, wherein the air conditioner is provided coaxially with the cross flow fan so as to be rotatable in conjunction with the cross flow fan.