JPH09310910A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of parts by changing the configuration of an existing part and prevent the dispersion of condensed water, generated in a heat exchanger, with a simple constitution. SOLUTION: A drain pan 4, receiving condensate generated from a heat exchanger 3, is provided below the heat exchanger 3 and a heat exchanger fixing plate, provided on the lower surface of the heat exchanger 3 to support the heat exchanger 3, is raised up at the position of the side surface 4a of the drain pan 4 and at the upstream side of the heat exchanger 3 while the raised-up surface 5a of the heat exchanger fixing plate is contacted with the side surface 4a of the drain pan 4 through an air leakage preventing packing member 6 whereby the dispersion of condensate, generated on the heat exchanger 3, can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner capable of cooling operation provided with a wind speed distribution or condensed water treatment for a heat exchanger.

[0002]

2. Description of the Related Art Conventionally, as this type of air conditioner, the one described in Japanese Patent Laid-Open No. 1-252831 is known as a first example.

The air conditioner will be described below with reference to FIGS. 9 to 11. As shown in the figure, the air sucked from the air suction port 101 passes through the heat exchanger 102 and is guided to the blower device inlet 103, but a part of the air flows between the heat exchanger 102 and the drain pan 104. Since the shield plate 105 is provided so as to be orthogonal to the flowing air, a vortex can be generated on the back surface of the shield plate 105, and since a negative pressure portion is formed there, the flow velocity is reduced and the heat exchanger 102 is drained from the drain pan. Condensed water will not be blown off when falling to 104. Further, at the same time, it is possible to prevent the condensed water accumulated in the drain pan 104 from blowing off.

A second example is Japanese Patent Laid-Open No. 53-146.
The one described in No. 104 is known.

The air conditioner will be described below with reference to FIG. As shown in the figure, a partition plate 203 is provided in the vicinity of the discharge port 202 of the blower case 201, and the flow path at the discharge port 202 of the cooling air is divided into a plurality of parts to balance the pressure distribution. Rotating electricity rotates and external fan 2
The outside air cooling air pressurized by 04 has a uniform air velocity distribution at the discharge port 202 by providing the partition plate 203, and is sent to the cooling pipe 206 provided in the heat exchanger 205. Therefore, the cooling pipe 206 of the heat exchanger 205
The air velocity distribution of the outside air cooling air passing through was uniform, and the effect of cooling the inside air of the rotating electric body 207 could be improved.

As a third example, Japanese Patent Laid-Open No. 5-9945.
The one described in No. 2 is known.

The air conditioner will be described below with reference to FIG. As shown in the figure, the blower 301
And a heat exchanger 304 arranged so as to cross the air flow passage 303 in the casing 302 accommodating the blower 301 on the windward side. Heat exchanger 3
A part 3 near the blower 301, which is made of a porous member through which air can flow at a position close to the upstream side or the downstream side of 04.
The wind speed distribution control body 307 is arranged so that the flow resistance of No. 05 is larger than the flow resistance of the portion 306 far from the blower 301.

As a fourth example, Japanese Patent Publication No. 7-2133.
The one described in No. 8 is known.

The air conditioner will be described below with reference to FIG. As shown in the figure, the heat exchanger 40
1. A gap 404 is formed on the lower surface of the stay 402 and the upper surface of the drain pan 403, and a shield plate 405 for preventing dew scattering is attached to the stay 402 on the leeward side of the heat exchanger 401. Space 4 between drain pan 403 and stay 402
06 and the first chamber 407 do not have a static pressure difference, that is, the space 406 does not become a negative pressure region, so that the condensed water 408 smoothly flows to the drain port 409 according to the inclination of the drain pan 403. Further, before the dew 410 on the surface of the heat exchanger 401 flows down to the drain pan 403, even if the dew 410 is blown by the air flow, the dew 410 collides with the shielding plate 405, so that the dew 410 is prevented from being scattered to the blower 411 side. .

[0010]

[Problems to be Solved by the Invention]
In the air conditioner of the above example, in order to prevent the condensed water that has left the heat exchanger 102 and the condensed water that has accumulated in the drain pan 104 from blowing off, a shielding plate 105 is separately provided in the gap between the heat exchanger 102 and the drain pan 104. If the size of the heat exchanger 102 is different, for example, when the drain pan 104 is provided with a slope in order to improve drainage, the shape of the shielding plate 105 must be changed each time. Therefore, there is a problem that the number of parts is reduced and the configuration is simplified.

Further, in the second example, the heat exchanger 20
5 to improve the wind speed distribution for the heat exchanger 205
However, there is a problem that the partition plate 203 must be provided as a separate component for the wind velocity distribution control member, and that the wind velocity distribution needs to be individually adjusted for the relative position between the heat exchanger 205 and the blower and the difference in the air volume. It is required to reduce the number of parts and achieve the purpose with a simple structure.

Further, in the third example, the heat exchanger 30
4 to improve the wind speed distribution for the heat exchanger 304
When the wind velocity distribution control member 307 is provided in the air conditioner, there are problems such as an increase in air resistance and an increase in the noise level emitted to the air discharge port, and improvement in the configuration is required.

Further, in the fourth example, the heat exchanger 40
Before the dew 410 on the surface 1 flows down to the drain pan 403,
In order to prevent being blown by the air flow, the shielding plate 4
There is a problem that 05 must be provided as a separate component, and it is required to reduce the number of components and simplify the configuration.

The present invention is intended to solve such a conventional problem, and has a small number of parts, such as condensed water leaving the heat exchanger, condensed water flowing down the heat exchanger, condensed water accumulated in the drain pan, and the like. An air conditioner that can prevent the scattering of air, adjust the distribution of individual wind speeds for differences in the relative position and air volume between the heat exchanger and the blower, suppress the noise level emitted to the air outlet, and suppress the increase in air pressure loss. The purpose is to do.

[0015]

In order to achieve the above object, the air conditioner of the present invention comprises a heat exchanger fixing plate provided on the lower surface of the heat exchanger for supporting the heat exchanger, upstream of the heat exchanger. And the side surface of the drain pan is raised upward, and the rising surface and the side surface of the drain pan are brought into contact with each other via the air leakage prevention packing.

According to the present invention, the number of parts can be reduced by changing the shape of existing parts, and with a simple structure, it is possible to prevent air from passing through the gap between the heat exchanger and the drain pan, and to perform heat exchange. It is possible to obtain an air conditioner that can prevent condensed water that has left the vessel and scattered condensed water that has accumulated in the drain pan.

Another means is that the rising surface of the heat exchanger fixing plate has a width corresponding to the discharge opening of the blower, and a plurality of vent holes are formed so as to project to the upstream side of the heat exchanger. The formed air dispersion plate is provided.

According to the present invention, it is possible to obtain an air conditioner capable of suppressing an increase in local wind velocity distribution to the heat exchanger due to the blower and preventing the condensed water flowing down the heat exchanger from scattering.

As another means, a plurality of vent holes are formed on the rising surface of the heat exchanger fixing plate so as to project toward the upstream surface of the heat exchanger and make the wind velocity distribution to the heat exchanger uniform. A wind velocity distribution plate is provided.

According to the present invention, it is possible to obtain an air conditioner in which the wind speed distribution in the heat exchanger can be easily adjusted and made uniform, and the condensed water flowing down the heat exchanger can be prevented from scattering and the heat exchange efficiency can be improved.

Another means is to provide a breathable sound absorbing material on the upstream side opposite to the ventilation surface of the wind velocity distribution plate provided on the rising surface of the heat exchanger fixing plate.

According to the present invention, the distribution of the wind speed can be easily made uniform, the scattering of condensed water flowing down the heat exchanger can be prevented, the heat exchange efficiency can be improved, and the noise level emitted can be suppressed. An air conditioner capable of performing is obtained.

Another means is to form a condensed water splash prevention plate on the downstream side of the heat exchanger fixing plate and provide an air flow hole at the root of the condensed water splash prevention plate.

According to the present invention, it is possible to obtain an air conditioner capable of preventing scattering of condensed water flowing down the heat exchanger while further reducing air resistance.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention relates to a blower provided inside an outer shell, and a heat exchanger provided on the downstream side of the blower,
It has a side surface raised in a shape for receiving condensed water generated from this heat exchanger, and has a drain pan provided below the heat exchanger, and a rising surface facing the side surface on the upstream side of the drain pan, A heat exchanger fixing plate for fixing the heat exchanger is provided, and a side surface of the drain pan and a rising surface of the heat exchanger fixing plate are in contact with each other with an air leakage prevention packing interposed. It has an effect of preventing the air blown from the blower from passing between the heat exchanger and the drain pan.

Further, the rising surface of the heat exchanger fixing plate has a width corresponding to the opening of the outlet of the blower, and a plurality of vent holes are formed in a shape projecting to the upstream surface of the heat exchanger to disperse the air. The plate is provided, and has an effect of suppressing an increase in local wind velocity distribution to the heat exchanger by the blower.

Further, there is provided a wind speed distribution plate on the rising surface of the heat exchanger fixing plate, which has a shape projecting toward the upstream surface of the heat exchanger and formed with a plurality of ventilation holes for uniformizing the wind speed distribution with respect to the heat exchanger. The configuration is provided, and has an effect that the air velocity distribution of the air blown to the heat exchanger by the air blower can be adjusted and made uniform.

Further, a sound absorbing material having air permeability is provided on the upstream side opposite to the ventilation surface of the wind speed distribution plate provided on the rising surface of the heat exchanger fixing plate, and the wind speed distribution is made uniform. It also has the effect of suppressing the noise level emitted.

Further, the condensed water splash prevention plate is formed upright on the downstream side of the heat exchanger fixing plate, and an air circulation hole is provided at the root of the condensed water splash prevention plate. The air resistance is further reduced and the condensed water flowing down the heat exchanger is prevented from scattering.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0031]

【Example】

(Embodiment 1) As shown in FIGS. 1 to 3, a fan 2 and a heat exchanger 3 capable of cooling operation are provided inside the outer shell 1 on the downstream side of the fan 2, and condensation generated by the heat exchanger 3 is performed. The heat exchanger 3 is fixed to the heat exchanger fixing plate 5 having the rising surface 5a facing the upstream side surface 4a of the drain pan 4 having the side surface 4a that is raised in a shape for receiving water. 4a and the rising surface 5a of the heat exchanger fixing plate 5 are brought into contact with each other via the air leakage prevention packing 6.

In the above configuration, when the cooling operation is performed, the air blown from the blower 2 exchanges heat while passing through the heat exchanger 3, is cooled, and is discharged from the discharge port 1a. The condensed water generated in 3 falls on the drain pan 4 and is received.

The air blown downward from the heat exchanger 3 has an air leakage prevention packing 6 interposed between the upstream side surface 4a of the drain pan 4 and the rising surface 5a of the heat exchanger fixing plate 5. Drain pan 4 and heat exchanger fixing plate 5
The gap between them disappears, the air blown by the blower 2 does not flow below the heat exchanger 3, and the condensed water falling from the heat exchanger 3 and the condensed water collected in the drain pan 4 can be prevented from scattering. it can.

(Embodiment 2) As shown in FIG. 4, the rising surface 5a of the heat exchanger fixing plate has a width corresponding to the discharge opening of a blower (not shown), An air dispersion plate 8 having a plurality of ventilation holes 7 having a shape projecting upstream is provided.

In the above structure, the air blown by the blower collides with and disperses on the dispersion plate 8 having the plurality of ventilation holes 7 provided on the rising surface 5a of the heat exchanger fixing plate, and thereby the heat exchanger. Suppresses the increase of the local wind speed distribution to 3,
The condensed water flowing down the heat exchanger 3 is prevented from scattering.

(Embodiment 3) As shown in FIG. 5, on the rising surface 5a of the heat exchanger fixing plate, the wind velocity distribution is uniform with respect to the lower surface of the heat exchanger 3 by projecting to the upstream surface of the heat exchanger 3. A wind speed distribution plate 10 having a plurality of ventilation holes 9 is formed.

The hole diameter and hole arrangement of the ventilation holes 9 and the height of the wind speed distribution plate 10 are different in the relative position between the heat exchanger 3 and the blower (not shown), the amount of blown air, or the number of blown openings of the blower. The wind speed distribution to the heat exchanger 3 is changed depending on the deviation.

In the above structure, a plurality of ventilation holes are provided in the wind speed distribution plate 10 provided on the rising surface 5a of the heat exchanger fixing plate, based on the deviation of the air speed distribution of the air blown by the blower to the heat exchanger 3. 9 hole diameter, hole arrangement, or wind speed distribution plate 1
By adjusting the height of 0, the wind speed distribution can be made uniform, the condensed water flowing down the heat exchanger 3 can be prevented from scattering, and the heat exchange efficiency can be improved.

(Embodiment 4) As shown in FIG. 6, a breathable sound absorbing material 11 is provided on the upstream side of the wind velocity distribution plate 10 provided on the rising surface 5a of the heat exchanger fixing plate, facing the ventilation surface. Set up.

In the above-mentioned structure, the hole diameters and hole arrangements of the plurality of ventilation holes 9 provided in the wind speed distribution plate 10 are based on the deviation of the wind speed distribution of the air blown by the blower (not shown) to the heat exchanger 3. By adjusting the height of the wind speed distribution plate 10 or the installation position of the sound absorbing material 11, the wind speed distribution to the heat exchanger 3 can be easily made uniform, and the condensed water flowing down the heat exchanger 3 can be prevented from scattering. Also, the heat exchange efficiency can be improved, and the noise emitted from the blower can be attenuated by the sound absorbing material 11, and the noise level emitted to the air outlet can be suppressed.

(Embodiment 5) As shown in FIGS. 7 and 8, a condensed water splash preventive plate 12 is provided on the downstream side of the heat exchanger fixing plate 5A, and is formed at the base of the condensed water splash preventive plate 12. A plurality of air circulation holes 13 are provided in the section.

In the above structure, heat exchange is performed when the height of the wind velocity distribution plate 10 and the diameter and arrangement of the ventilation holes 9 are adjusted so as to reduce the pressure loss of the air blown by the blower (not shown) as much as possible. Although the condensate that flows down to the lower end of the vessel 3 and bridges the lower end is likely to be scattered, the heat exchanger fixing plate 5
The condensed water splash prevention plate 12 provided on the downstream side of the heat exchanger 3 of A blocks the splash of condensed water, and the presence of this condensed water splash preventive plate 12 allows air to concentrate on the upper end of the condensed water splash preventive plate 12. By letting a part of the flow escape to the plurality of air circulation holes 13 provided at the root of the condensed water splash prevention plate 12, the condensed water can be prevented from flying over the upper end of the rising surface and scattering. .

[0043]

As is apparent from the above embodiments, according to the present invention, the number of parts is reduced by changing the shape of existing parts, and the structure is simple, and the air pressure loss is small. Can be prevented from passing through the gap between the heat exchanger and the drain pan, and it is possible to provide an air conditioner having an effect of preventing condensed water leaving the heat exchanger and splashing of condensed water accumulated in the drain pan. .

Further, by changing the shape of the existing parts, the number of parts is reduced, the local wind speed distribution to the heat exchanger due to the blower is suppressed from increasing with a simple structure, and the condensed water flowing down the heat exchanger is reduced. It is possible to provide an air conditioner having an effect of preventing scattering of air.

Further, by changing the shape of existing parts, the number of parts can be reduced, and the wind speed distribution in the heat exchanger can be easily adjusted and made uniform with a simple structure, and the condensed water flowing down the heat exchanger can be scattered. It is possible to provide an air conditioner having effects of prevention and improvement of heat exchange efficiency.

Further, the wind velocity distribution can be made uniform, the condensed water flowing down the heat exchanger can be prevented from scattering and the heat exchange efficiency can be improved, and the noise level emitted to the air outlet can be suppressed. An air conditioner can be provided.

Further, by changing the shape of existing parts, the number of parts can be reduced, the air resistance can be further reduced with a simple structure, and the scattering of condensed water flowing down the heat exchanger can be prevented. An air conditioner can be provided.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a configuration of an air conditioner according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a configuration of a heat exchanger portion of the air conditioning apparatus of the first embodiment.

FIG. 3 is a perspective view showing a configuration of a heat exchanger and a drain pan portion of the air conditioning apparatus of the first embodiment.

FIG. 4 is a perspective view showing a configuration of a heat exchanger and a drain pan portion of the air conditioning apparatus of the second embodiment.

FIG. 5 is a perspective view showing a configuration of a heat exchanger and a drain pan portion of the air conditioning apparatus of the third embodiment.

FIG. 6 is a perspective view showing a configuration of a heat exchanger and a drain pan portion of the air conditioning apparatus of the fourth embodiment.

FIG. 7 is a perspective view showing a configuration of a heat exchanger and a drain pan portion of the air conditioning apparatus of the fifth embodiment.

FIG. 8 is a partial cross-sectional view showing a configuration of a heat exchanger and a drain pan portion of the air conditioner of the fifth embodiment.

FIG. 9 is a schematic diagram showing a configuration of an air conditioner in a conventional example 1.

FIG. 10 is an enlarged cross-sectional view of a heat exchanger and a drain pan portion of the air conditioner according to the first example.

FIG. 11 is a perspective view showing a configuration of a heat exchanger portion of the air conditioning apparatus in the first example.

FIG. 12 is a schematic cross-sectional view showing the configuration of the air conditioning apparatus in the second example.

FIG. 13 is a schematic cross-sectional view showing the configuration of the air conditioning apparatus in the third example.

FIG. 14 is a schematic cross-sectional view showing the configuration of the air conditioning apparatus in the fourth example.

[Explanation of symbols]

 1 Outer Shell 2 Blower 3 Heat Exchanger 4 Drain Pan 4a Side 5 Heat Exchanger Fixing Plate 5A Heat Exchanger Fixing Plate 5a Rising Surface 6 Air Leak Prevention Packing 7 Ventilation Hole 8 Dispersion Plate 9 Ventilation Hole 10 Wind Speed Distribution Plate 11 Sound Absorbing Material 12 Condensate splash prevention plate 13 Air circulation hole

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Minoru Fukuda 6-2-61, Imafukunishi, Joto-ku, Osaka-shi, Osaka Inside Matsushita Seiko Co., Ltd. (72) Inventor Hideyuki Fujisawa 6-chome, Imafukunishi, Joto-ku, Osaka-shi, Osaka No. 2 No. 61 Matsushita Seiko Co., Ltd.

Claims (5)

[Claims] 1. A blower provided inside the outer shell, a heat exchanger provided downstream of the blower, and a side surface that is raised in a shape to receive condensed water generated from the heat exchanger,
A drain pan provided below the heat exchanger, and a rising surface facing the upstream side surface of the drain pan,
An air conditioner comprising a heat exchanger fixing plate for fixing the heat exchanger, and a side surface of the drain pan and a rising surface of the heat exchanger fixing plate are in contact with each other with an air leakage prevention packing interposed. . 2. An air dispersion in which a rising surface of a heat exchanger fixing plate has a width corresponding to a discharge opening of a blower and a plurality of ventilation holes are formed in a shape projecting to an upstream surface of the heat exchanger. The air conditioner according to claim 1, further comprising a plate. 3. A wind speed distribution plate having a plurality of ventilation holes formed on the rising surface of the heat exchanger fixing plate so as to project toward the upstream surface of the heat exchanger and for uniformizing the wind speed distribution with respect to the heat exchanger. The air conditioner according to claim 1, which is provided. 4. The air conditioner according to claim 3, wherein a sound absorbing material having air permeability is provided on the upstream side opposite to the ventilation surface of the wind speed distribution plate provided on the rising surface of the heat exchanger fixing plate. 5. The air conditioner according to claim 3, wherein a condensed water splash prevention plate is formed to rise on the downstream side of the heat exchanger fixing plate, and an air circulation hole is provided at the root portion of the condensed water splash prevention plate. apparatus.