JPH0612460Y2 - Spot air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a spot air conditioner for locally cooling in a factory or the like.

(Prior Art) Generally, in this type of spot air conditioner, a fan that sucks air from an air intake port provided in the casing body is provided in the casing body, and a compressor, an evaporator, a condenser, and the like are provided. In the casing body, approximately half of the air sucked into the casing body by the fan becomes low-temperature conditioned air that has been heat-exchanged through the low-temperature evaporator side. The remaining approximately half of the air blown into the casing body while being blown out from the provided first outlet becomes the high-temperature exhaust hot air that is heat-exchanged through the high-temperature condenser side, and is provided in the casing body. It is well known that the second outlet is used.

And, the water separated from the air through the evaporator side is
After being received as drain water by a receiving tray provided below the condenser, one end is communicated with the receiving tray and the other end is provided in a drain tank provided below the casing main body through a drain pipe that opens in the drain tank. I am trying to store it in. (See Japanese Utility Model Publication No. 62-14498).

(Problems to be solved by the invention) However, in the spot air conditioner provided with the drain tank as described above, a space for providing the drain tank is necessary for treating the drain water, so that the spot air conditioner itself becomes large. was there.

Further, since the drain water is gradually collected in the drain tank by using the spot air conditioner, it is necessary to periodically remove the drain tank from the spot air conditioner to drain the drain water.

From such a point, in the casing main body facing the air intake port of the casing main body, the heat exchanger in which the evaporator located at the upper part and the condenser located at the lower part are integrally formed is formed substantially at right angles to the horizontal plane ( 90 °), and a partition plate for partitioning the downstream side of the heat exchanger is provided. Fans provided on the downstream sides of the evaporator and the condenser are used to separate the heat from the air suction port. While the low-temperature conditioned air that has passed through the evaporator side of the heat exchanger is blown out from the first outlet of the casing body, the drain water that flows downward from the evaporator is evaporated by the condenser of the heat exchanger while this steam ( It has been proposed that the drain water) be discharged from the second outlet of the casing main body together with the high-temperature exhaust hot air that has passed through the condenser side (see Japanese Utility Model Laid-Open No. 52-24757).

This eliminates the need for the drain tank, saves space for the drain tank of the spot air conditioner, and eliminates the need for maintenance for removing the drain tank and periodically draining the drain water.

However, in the above-mentioned proposal, since the heat exchanger in which the evaporator and the condenser are integrally formed is arranged upright so as to be substantially perpendicular to the horizontal plane, the casing body of the spot air conditioner is vertically arranged. It had the drawback of becoming bulky and bulky. Also, since two fans are required to correspond to the evaporator and condenser respectively,
There is also a drawback that the casing body cannot be made compact.

The present invention has been made in view of the above points, and an object thereof is to appropriately arrange the heat exchanger and the fan to unify the fan, and to unify the fan and the drain tank. The height of the casing itself as well as the overall size will be reduced by abolishing it, and the drain tank will be abolished and periodic drainage of drain water will be unnecessary, and the usability of the spot air conditioner will be improved by maintenance-free operation. It is a thing.

(Means for Solving the Problem) In order to achieve the above-mentioned object, first, the means devised by the invention according to claim (1) sucks air into the casing body (1) at the lower part of the casing body (1). An air suction port (2) is provided, and a fan (3) for sucking air is provided in the casing body (1) facing the air suction port (2). A heat exchanger (9) in which a positioned evaporator (7) and a lower positioned condenser (8) are integrally formed is arranged obliquely with respect to a horizontal plane (X). Then, the casing body (1) has first outlets (15a), (15b) for blowing out the low-temperature air passing through the evaporator (7) side of the heat exchanger (9) to the outside of the casing body (1). A second outlet (16) for blowing out the high temperature air that has passed through the condenser (8) side of the heat exchanger (9) to the outside of the casing body (1) is provided, and the heat exchanger (9) A partition plate (18) for partitioning the air flow passing through the evaporator (7) side and the air flow passing through the condenser (8) side is provided on the downstream side.

Further, the means taken by claim (2) is that the upstream side of the heat exchanger (9) is a baffle plate (21) extending between the evaporator (7) and the condenser (8).
Is provided.

(Operation) With the above structure, in the inventions according to claims (1) and (2), the fan is installed from the air suction port (2) at the bottom of the casing body (1).
The air sucked into the casing body (1) by (3) is
Evaporator of heat exchanger (9) provided on the downstream side of the fan (3)
Pass through side (7) or condenser (8). Then, the air that has passed through the evaporator (7) side located above the heat exchanger (9) is
Heat is exchanged in the evaporator (7) to become low-temperature conditioned air, and the conditioned air is passed through one passage (19) partitioned by the partition plate (18) to the first outlets (15a), (15b). Is blown out from. On the other hand, the remaining air that has passed through the condenser (8) side located under the heat exchanger (9) is heat-exchanged in the condenser (8) to become high-temperature exhaust hot air, and this exhaust hot air is partitioned. The other passage separated by a plate (18)
It is blown out from the second outlet (16) via (20).

In that case, in the evaporator (7) above the heat exchanger (9), water is separated from the air by heat exchange to become drain water, and this drain water is located in the condenser (7) below the evaporator (7). 8) side, the drain water that has flowed down is evaporated by the high temperature condenser (8), and then the drain water that has become steam is discharged (blowing) from the second outlet (16) together with the exhaust hot air. It has become so. Therefore, the fan (3) corresponds to the air inlet (2) of the casing body (1) and the heat exchanger (4).
1 provided on the upstream side of (evaporator (7) and condenser (8))
Only one fan (3) is required, and a fan (3) having both the evaporator (7) side and the condenser (8) side can be used. Moreover, since the heat exchanger (9) is arranged to be inclined with respect to the horizontal plane, the casing main body (1) is placed in a vertical direction as compared with the case where the heat exchanger is arranged upright. The extension can be suppressed. Further, it is not necessary to provide a drain tank necessary for treating the drain water, and the drain tank of the spot air conditioner (A) can be eliminated.

Furthermore, since the drain tank is not required, it is possible to eliminate the need for maintenance for periodically draining the drain water accumulated in the drain tank.

In the device according to claim (2), the air sucked by the fan (3) from the air suction port (2) into the casing body (1) is a baffle plate before coming into contact with the heat exchanger (9). Abutment (21) is divided into the evaporator (7) side and the condenser (8) side, respectively, and the conditioned air passing through the evaporator (7) side and the exhaust hot air passing through the condenser (8) side It is possible to reliably prevent the mixture of Besides, baffle
By setting the size of (21) appropriately, the fan
(3) side of air sucked by (3) side and condenser
(8) The distribution to the side can be easily adjusted.

(Effect of device) As described above, according to the device of claim (1), the heat exchanger
The drain water that flows down to the evaporator (7) side of (9) and evaporates is discharged from the second outlet (16) together with the exhaust hot air, and the drain tank becomes unnecessary, and to the inclined heat exchanger (9). Since the air is sent by one fan, the space of the spot air conditioner (A) for the drain tank is reduced and the height of the casing body (1) of the spot air conditioner (A) is reduced, as well as the overall compact size. Can be realized. In addition, the maintenance-free operation that does not require the regular drainage of drain water can improve the usability of the spot air conditioner (A).

Further, according to the invention of claim (2), the air contacting the baffle plate (21) is distributed and adjusted to be divided into the evaporator (7) side and the condenser (8) side, respectively. Mixing of the wind and the exhaust hot air can be reliably prevented, and the air volume of the conditioned air can be easily adjusted. Therefore, the cooling performance of the spot air conditioner (A) can be improved.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

1 and 2 show a spot air conditioner (A) according to an embodiment of the present invention, (1) is a casing (casing body) of the spot air conditioner (A), and a front plate of the casing (1) An air suction port (2) for sucking air is provided in the lower part of (1a) (right side in FIG. 2). A blower (3) (fan) made of a sirocco fan is provided in the casing (1) corresponding to the air suction port (2). A partition wall (4) for partitioning the inside of the casing (1) into upper and lower parts is provided above (downstream side) the blower (3). Further, the partition wall (4) is provided with an opening (4a) corresponding to the air outlet (3a) of the blower (3). Then, the air sucked from the air suction port (2) by the blower (3) is the air outlet (3) of the blower (3).
It is guided to the upper part in the casing (1) through a) and the opening (4a) of the partition wall (4). Further, an electric motor (5) for driving and rotating the blower (3) is provided behind the blower (3), and a compressor (6) is provided behind the electric motor (5). There is.

In addition, above the blower (3) via the partition wall (4) on the downstream side of the blower (3), an evaporator portion (7) (evaporator) is provided as shown in an enlarged detail in FIG. A heat exchanger (9) integrally formed with the condenser portion (8) (condenser) is provided. Between the tube plates (10), (10) provided at the left and right ends of the heat exchanger (9), a thin fin material that substantially matches the side shape of each tube plate (10).
A plurality of (13) are provided at predetermined intervals in the left-right direction.
Further, the evaporator portion (7) which occupies approximately one-third of the upper side of the heat exchanger (9) and the condenser portion (8) which occupies approximately two-third of the lower side of the heat exchanger (9) are the fin members (13). The pipe members (11) and (12) are sequentially penetrated from the side in the up-down direction and the front-rear direction, and the pipe members (11) and (12) are each bent and formed in a coil shape. Pipe material for the evaporator part (7)
While (11) are provided in n rows (n is a positive number of 3 or more) in the vertical direction, the pipe members (12) of the condenser portion (8) are provided in 2n rows in the vertical direction. In addition, the evaporator part
At the boundary between (7) and the condenser part (8), there are two rows of upper and lower main parts (1
4) (portion without pipe material) is provided,
By (14), mutual heat conduction from the pipe material (11) on the evaporator portion (7) side and the pipe material (12) on the condenser portion (8) side is suppressed as much as possible. Each pipe material (11), (1
2) (Evaporator part (7), condenser part (8)) and main part (14)
The center rows are vertically offset and three rows are provided in the front-rear direction. And the heat exchanger
(9) is provided in a front inclined state in which the upper end portion is inclined forward so that the inclination angle (α) with respect to the horizontal plane (X) is 60 ° or more. The compressor (6) and the heat exchanger (9) (evaporator part (7), condenser part (8)) are connected by a refrigerant pipe (not shown) so that the refrigerant can flow. .

Further, the top plate (1b) of the casing (1) has a front portion formed in a frontwardly inclined shape and a rear portion formed in a substantially horizontal shape. The top plate (1
In the front part (sloping surface part) of b), the openings (15a), (15b) (first
While the outlets are provided on the left and right respectively, the top plate (1
b) The rear part (horizontal surface) has a substantially rectangular opening (16).
(Second outlet) is provided. Above casing (1)
One end of each of substantially L-shaped tubular ducts (17a), (17b) is rotatably attached to the opening portions (15a), (15b) of the top plate (1b). Also, the main body (14) of the heat exchanger (9)
On the surface side (upstream side) of the heat exchanger (9) where is located, there is provided a baffle plate (21) that straddles the boundary between the evaporator portion (7) and the condenser portion (8). Furthermore, the main body of the heat exchanger (9) (1
On the back side (downstream side) of the heat exchanger (9) where 4) is located, the lower end is connected to the boundary (main part (14)) between the evaporator part (7) and the condenser part (8). , Top plate (1b) with casing (1) at the top
A partition plate (18) connected to the inner surface and extending in the vertical direction is provided, and the partition plate (18) partitions the inside of the casing (1) above the partition wall (4) into front and rear. And, in the upper space in the casing (1), a front side first passage (19) (one side passage) and a rear side second passage (20) (the other side passage) are provided by the partition plate (18). The above-mentioned blower
It is guided to the upper part inside the casing (1) by (3) and the baffle plate (2
Of the air that has come into contact with 1), approximately one-third of it is on the side of the first passageway (19) through the low-temperature evaporator portion (7), and the remaining approximately two-third of the air is the high-temperature condenser. The parts are distributed to the second passage (20) side via the part (8). In addition, the first passage (19) has openings (15a), (15b) and ducts (17a), (17).
The second passage (20) is provided outside the casing (1) via b).
Respectively open to the outside of the casing (1) through the openings (16).

Reference numeral (22) is a caster that is attached to the four corners of the bottom plate (1c) of the casing (1) to make the spot air conditioner (A) move smoothly.

Next, the operation and effect of the above-mentioned embodiment will be described. The air suction port (2) provided in the lower portion of the front plate (1a) of the casing (1).
The air sucked by the blower (3) from the inside of the casing (1) into the casing (1) is indicated by the arrow (solid line) in FIG.
Before contacting the heat exchanger (9) provided on the upper side (downstream side) of (3), it contacts the baffle plate (21), and is positioned above the heat exchanger (9) by the baffle plate (21). Almost one-third of the air is distributed to the evaporator part (7), while the remaining two-third of the air is distributed to the condenser part (8) located under the heat exchanger (9). It
Then, about one-third of the air that has passed through the evaporator portion (7) is heat-exchanged in the evaporator portion (7) as shown by an arrow (two-dot chain line) in FIG. It becomes the conditioned air, and this conditioned air is blown out from the ducts (17a), (17b) through the first passage (19) and the openings (15a), (15b) partitioned by the partition plate (18) in the front and rear. To be done. On the other hand, the remaining approximately two-thirds of the air that has passed through the condenser portion (8) is, as indicated by the arrow (broken line) in FIG.
Heat is exchanged in the condenser part (8) to form hot exhaust hot air,
The exhaust hot air is blown out from the opening (16) through the second passage (20) partitioned by the partition plate (18). In this case, the heat exchanger
(9) The drain water, which is water contained in the air separated by the heat exchange in the upper evaporator part (7), is removed from the heat exchanger (9) below the evaporator part (7). It flows down to the condenser part (8), and the drain water that has flowed down is at a high temperature in the condenser part (8).
After that, the drain water turned into steam is discharged (blowing) from the opening (16) together with the exhaust hot air.

As a result, the blower (3) is connected to the air inlet of the casing (1).
One blower (3) corresponding to (2) and provided upstream of the heat exchanger (4) (evaporator part (7) and condenser part (8)) is sufficient, and the evaporator part (7) The blower (3) can be used as both the side and the condenser part (8) side. Besides, heat exchanger (9)
Are inclined, the overall height of the casing (1) is reduced. In addition, it is not necessary to install a drain tank, which was necessary to treat drain water, and
The drain tank of (A) can be eliminated. As a result, while saving space for the spot air conditioner (A) for the drain tank, the casing (1) of the spot air conditioner (A)
Not only the height but also the overall size can be reduced.

In addition, since the drain tank is not required, maintenance that drains the drain water accumulated in the drain tank on a regular basis is not required, and thus the maintenance-free spot air conditioner (A) that does not require periodic drainage of drain water. The usability of can be improved.

Further, the baffle plate (21) provided on the upstream side of the heat exchanger (9) ensures mixing of the conditioned air passing through the evaporator part (7) and the exhaust hot air passing through the condenser part (8). In addition to being regulated, the distribution of the air sucked by the blower (3) to the evaporator part (7) side and the condenser part (8) side can be adjusted, so the cooling performance of the spot air conditioner (A) Can be improved.

In the above embodiment, about one-third of the air is supplied to the evaporator part.
In (7), about two-thirds of the air is distributed to the condenser section (8), but this distribution ratio may be set freely. For example, approximately half of the air may be distributed to the evaporator portion and the condenser portion, respectively, in which case
The baffle plate is attached to the upstream side of the main body of the heat exchanger, which is provided at the center of the heat exchanger in the vertical direction.

[Brief description of drawings]

The drawings show an embodiment of the present invention. Fig. 1 is a perspective view of a spot air conditioner, Fig. 2 is a sectional view taken along the line II-II of Fig. 1, and Fig. 3 is an enlarged view of a main part of Fig. 2. Is. (1) …… Casing, (2) …… Air inlet, (3) …… Blower, (7) …… Evaporator, (8) …… Condenser, (9) ……
Heat exchanger, (15a), (15b) …… Opening part, (16) …… Opening part,
(18) …… Partition plate, (21) …… Baffle plate, (A) …… Spot air conditioner, (X) …… Horizontal plane.

Claims (2)

[Scope of utility model registration request] 1. A casing body (1) is provided with an air suction port (2) for sucking air into the casing body (1), and the casing body (1) faces the air suction port (2). A fan (3) for sucking air is provided and the fan
On the downstream side of (3), a heat exchanger (9) integrally formed with an evaporator (7) located at the top and a condenser (8) located at the bottom is a horizontal surface.
(1) A first outlet that is arranged to be inclined with respect to (X) and blows low temperature air that has passed through the evaporator (7) side of the heat exchanger (9) to the casing body (1) to the outside of the casing body (1). (15a), (15b) and a second outlet (16) for blowing out the hot air passing through the condenser (8) side of the heat exchanger (9) to the outside of the casing body (1) A partition plate (18) for partitioning the air flow passing through the evaporator (7) side and the air flow passing through the condenser (8) side is provided on the downstream side of the heat exchanger (9). Spot air conditioner characterized by that. 2. The evaporator (7) is provided upstream of the heat exchanger (9).
The spot air conditioner according to claim (1), wherein a baffle plate (21) is provided between the air conditioner and the condenser (8).