JP7213404B2 - dehumidifier - Google Patents

Description

The present invention relates to a dehumidifier used in living spaces and the like.

Conventionally, this type of dehumidifier includes a body case having an air inlet and an air outlet, and a heat pump device and a heat exchanger provided in the body case.

A heat pump device is formed by a compressor, a radiator, an expansion section, and a heat absorber. air flows through the second air passage in the heat exchanging portion toward the outlet, and the first air and the second air exchange heat.

A blower was provided in the dehumidifying air passage from the intake port to the air outlet through the first air passage of the heat exchanger, the heat absorber, the second air passage of the heat exchanger, and the radiator. (See Patent Document 1, for example).

JP-A-2005-214533

In such a dehumidifier, since the first air passage and the second air passage of the heat exchanger are configured by the same air passage, the air passage is complicated and the pressure loss is large. As a result, there is a problem that a sufficient air volume of the radiator may not be obtained.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a dehumidifier with reduced power consumption.

In order to achieve this object, the dehumidifier according to the present invention comprises a main body case having an air inlet and an air outlet, and a refrigeration cycle in which a compressor, a radiator, an expander, and a heat absorber are connected in order. an air blower for blowing out the air outside the main body case from the air outlet after passing through the refrigerating cycle, the air flowing through the first heat exchange air passage, and the second heat exchange air passage; a heat exchanger that exchanges heat with air flowing through a heat exchange air passage; a first dehumidification path that blows out of the main body case from the air outlet via the second heat exchange air passage of the heat exchanger, the radiator, and the blower; Air sucked into the main body case is discharged from the air outlet via the first heat exchange air passage of the heat exchanger, the second heat exchange air passage of the heat exchanger, the radiator, and the blower. and a second dehumidifying path for blowing out of the main body case, thereby achieving the intended purpose.

According to the present invention, the dehumidifier according to the present invention includes a main body case having an air inlet and an air outlet, a refrigeration cycle in which a compressor, a radiator, an expander, and a heat absorber are connected in order, and the air inlet. an air blower that blows out the air outside the main body case from the air outlet after passing through the refrigerating cycle, the air flowing through the first heat exchange air passage and the second heat exchange air passage. and the air sucked into the main body case from the air suction port by the blower is transferred through the first heat exchange air passage of the heat exchanger, the heat absorber, and the heat a first dehumidifying path that blows out of the main body case from the air outlet via the second heat exchange air passage of the exchanger, the radiator, and the blower; the air sucked into the main body case from the air outlet through the first heat exchange air passage of the heat exchanger, the second heat exchange air passage of the heat exchanger, the radiator, and the blower. and the second dehumidification path that blows out to the heat sink, the air volume of the radiator can be increased without increasing the air volume of the heat sink, and the cooling of the radiator can be promoted. As a result, power consumption can be reduced.

1 is an external view of a dehumidifier according to Embodiment 1 of the present invention; Cross-sectional view showing the outline of the AA cross section of the same dehumidifier Schematic diagram showing the configuration of the heat exchanger of the same dehumidifier

A dehumidifier according to the present invention includes a main body case having an air inlet and an air outlet, a refrigeration cycle in which a compressor, a radiator, an expander, and a heat absorber are connected in order, and the main body sucked from the air inlet. A blower that blows air outside the case out of the main body case from the air outlet after passing through the refrigeration cycle, and heats the air flowing through the first heat exchange air passage and the air flowing through the second heat exchange air passage. The heat exchanger to be exchanged and the air sucked into the main body case from the air suction port by the blower are passed through the first heat exchange air passage of the heat exchanger, the heat absorber, and the second heat exchanger of the heat exchanger. a first dehumidification path that blows out of the main body case from the air outlet via the heat exchange air path, the radiator, and the blower; A second dehumidifier that blows out of the main body case from the air outlet via the first heat exchange air passage of the heat exchanger, the second heat exchange air passage of the heat exchanger, the radiator, and the blower. With the configuration including the path, the air volume of the heat sink can be increased without increasing the air volume of the heat sink, and the cooling of the heat sink can be promoted. As a result, power consumption can be reduced. can be lowered.

Further, the first heat exchange air passage that exchanges heat with the second heat exchange air passage in the second dehumidification passage is the first air passage that exchanges heat with the second heat exchange passage in the first dehumidification passage. By adopting a configuration in which heat is exchanged with the windward air in the air flowing through the first heat exchange air passage from the heat exchange air passage, the heat exchanger can be efficiently cooled. As a result, dehumidification performance can be improved.

Further, the heat absorber and the heat exchanger are arranged in order in the horizontal direction, the upper end of the heat absorber is arranged below the upper end of the heat exchanger, and the upper end of the heat absorber is arranged above the upper end of the heat absorber. By configuring the second heat exchange air passage of the heat exchanger to be a part of the second dehumidification passage, it is possible to increase the air volume above the heat radiator. As a result, power consumption can be reduced.

In addition, the lower end of the heat absorber is arranged below the lower end of the windward side of the second heat exchange air passage of the heat exchanger, and the heat absorber is located in the second heat exchange air passage of the heat exchanger. a first heat absorber portion disposed below the lower end of the windward side of the heat exchanger, and a second heat absorber portion disposed above the lower end of the windward side of the second heat exchange air passage of the heat exchanger and, the air sucked into the main body case from the air suction port by the blower is passed through the first heat exchange air passage, the first heat absorber portion, and the second heat absorber of the heat exchanger. part, the second heat exchange air passage of the heat exchanger, the radiator, and the blower, and a third dehumidification passage that blows out from the air outlet to the outside of the main body case. The leeward side of the first heat exchange airpath of the exchanger can be cooled more. As a result, dehumidification performance can be improved.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 is an external view of the dehumidifier according to the first embodiment, and FIG. 2 is a schematic cross-sectional view taken along line AA in FIG.

As shown in FIGS. 1 and 2, the body case 1 of the dehumidifier is box-shaped, has an air suction port 2 on the rear surface, and has an air outlet port 3 on the front side of the top surface.

A refrigerating cycle, a heat exchanger 4 and a blower 5 are provided in the body case 1 .

The refrigerating cycle comprises a compressor 6, a radiator 7, a capillary tube as an expander 8, and a heat absorber 9, which are connected in this order by refrigerant pipes 10. FIG. This heat absorber 9 cools and dehumidifies the air to be dehumidified. The radiator 7 and the heat absorber 9 are arranged facing each other. The radiator 7 is arranged on the front side of the body case 1 , and the heat absorber 9 is arranged on the back side of the body case 1 .

FIG. 3 is a schematic diagram showing the configuration of the heat exchanger 4. As shown in FIG. As shown in FIGS. 2 and 3, the heat exchanger 4 is configured by alternately stacking heat transfer plates A11 and heat transfer plates B12. Ribs 13 are provided so that A first heat exchange air passage 14 flowing in the vertical direction and a second heat exchange air passage 15 flowing in the horizontal direction are configured, and heat is exchanged between these air passages via respective heat transfer plates. The heat exchanger 4 has a cubic shape with an inclined bottom surface in a state in which the heat transfer plates are laminated, and is provided between the radiator 7 and the heat absorber 9 in the air passage from the heat absorber 9 to the heat radiator 7. .

The blower 5 includes a scroll-shaped casing portion 16 , a motor portion 17 fixed to the casing portion 16 , and blade portions 18 rotated by the motor portion 17 . The casing part 16 has a suction port 19 and a discharge port 20 . This suction port 19 faces the radiator 7 . The heat absorber 9, the second heat exchange air passage 15 of the heat exchanger 4, the radiator 7, and the blower 5 are horizontally arranged on a straight line. That is, the heat absorber 9, the heat exchanger 4, the radiator 7, and the suction port 19 have an air passage on a straight line.

The air sucked from the air suction port 2 by the blower 5 flows into the first heat exchange air passage 14 of the heat exchanger 4 as indicated by the arrow, and the air that has already been cooled and dehumidified by the heat absorber 9 and the heat After being exchanged and precooled, it passes through the portion of the heat absorber 9 protruding downward from the bottom surface of the heat exchanger 4, then reverses the wind direction, and further passes through the remaining portion of the heat absorber 9 to be cooled and dehumidified. There is also an air passage that does not pass through the portion that protrudes downward from the bottom surface of the heat exchanger 4 and passes through the heat absorber 9 only once. Alternatively, the heat absorber 9 may not protrude from the bottom surface of the heat exchanger 4, and the lower end of the heat absorber 9 and the upper end of the bottom surface of the heat exchanger 4 may be at the same height.

The cooled and dehumidified air flows into the second heat exchange air passage 15 of the heat exchanger 4, is heated by the air sucked from the air suction port 2, is further heated by the radiator 7, and is blown out of the machine by the blower 5. . The air passage serves as a dehumidification path 21 for dehumidification.

A water receiving means 22 is installed below the heat exchanger 4 and the heat absorber 9 . Condensed water generated in the first heat exchange air passage 14 of the heat exchanger 4 and the heat absorber 9 drips onto the water receiving means 22 . That is, when the air flowing in from the air suction port 2 is precooled in the heat exchanger 4, moisture may condense in the first heat exchange air passage 14 and form water droplets. A water receiving means 22 which also serves as a dehumidifying path 21 is arranged below the container 4 to receive condensed water.

A tank 24 for storing condensed water is provided in the lower part of the water receiving means 22 in the main body case 1. The dehumidified water is recovered in tank 24 .

A heat absorber cover 23 is provided above the water receiving means 22 on the opposite side of the heat absorber 9 from the heat exchanger 4 (on the air inlet 2 side of the main body case 1). The water receiving means 22 and the heat absorber cover 23 are part of the air passage from the first heat exchange air passage 14 of the heat exchanger 4 to the heat absorber 9 in the dehumidifying passage 21 .

The features of this embodiment are:
It is to have the structure provided with the 1st dehumidification path|route 21a and the 2nd dehumidification path|route 21b. The first dehumidification path 21 a passes the air sucked into the main body case 1 from the air suction port 2 by the blower 5 through the first heat exchange air path 14 of the heat exchanger 4 , the heat absorber 9 , and the second heat exchanger 4 . It is an air path that blows out of the main body case from the air outlet through the heat exchange air path 15, the radiator 7, and the blower 5.
The second dehumidifying path 21 b passes the air sucked into the main body case 1 from the air suction port 2 by the blower 5 through the first heat exchange air passage 14 of the heat exchanger 4 and the second heat exchange air passage of the heat exchanger 4 . 15, an air passage for blowing out of the main body case 1 from the air outlet 3 via the radiator 7 and the blower 5;

Note that the first dehumidification path 21a and the second dehumidification path 21b are the same path up to the first heat exchange air path 14 of the heat exchanger 4, and the first heat exchange air path 14 of the heat exchanger 4 After passing through, they split into different routes. The first dehumidification path 21a passes through the heat absorber 9 and the second heat exchange air passage 15 of the heat exchanger 4, and the second dehumidification path 21b passes through the second heat exchange air passage 15 of the heat exchanger 4. After that, the air merges, becomes the same path again, and is blown out of the main body case 1 from the air outlet 3 via the radiator 7 and the blower 5 . That is, the first dehumidification path 21a is a path that passes through both the heat absorber 9 and the radiator 7, but the second dehumidification path 21b is a path that passes through the radiator 7 without passing through the heat absorber 9. be. As a result, the amount of air passing through the radiator 7 is greater than the amount of air passing through the heat absorber 9 .

A dehumidifier using a refrigeration cycle and a heat exchanger is characterized by low power consumption relative to its dehumidification capacity. When trying to further reduce power consumption, it is conceivable to increase the air volume of the radiator 7. Since the air volume of the device 9 is the same, if the air volume of the radiator 7 is increased, the air velocity passing through the heat absorber 9 is too high, so dew condensation may not be sufficiently performed, and the dehumidification performance may be lowered.

By dividing the first dehumidifying path 21 a and the second dehumidifying path 21 b in this manner, the air volume of the radiator 7 can be increased more than that of the heat absorber 9 . As a result, the air volume of the radiator 7 can be increased without increasing the air volume of the heat absorber 9, and the cooling of the radiator 7 can be promoted, resulting in a reduction in power consumption.

In addition, the first heat exchange air passage 14 that exchanges heat with the second heat exchange air passage 15 in the second dehumidification path 21b is
From the first heat exchange air passage 14 that exchanges heat with the second heat exchange air passage 15 in the first dehumidification path 21a,
The air flowing through the first heat exchange air passage 14 may be configured to exchange heat with air on the windward side.

The air flowing into the second heat exchange air passage 15 in the first dehumidification path 21a passes through the first heat exchange air passage 14 and the heat absorber 9 in order, and is sufficiently cooled before entering the second heat exchange air passage 15. On the other hand, the air flowing into the second heat exchange air passage 15 in the second dehumidification path 21b flows into the second heat exchange air passage 15 after passing through the first heat exchange air passage 14. The temperature becomes higher than that of the first dehumidification path 21a.

On the other hand, indoor air is taken into the first heat exchange air passage 14 . The windward side of the first heat exchange air passage 14 exchanges heat with the second heat exchange air passage 15 of the second dehumidification passage 21b, and passes through the leeward side of the first heat exchange air passage 14 in a precooled state. Therefore, the air can be cooled more efficiently in the first heat exchange air passage 14 . As a result, dehumidification performance can be improved.

In addition, the heat absorber 9 and the heat exchanger 4 are arranged in order in the horizontal direction, the upper end of the heat absorber 9 is arranged below the upper end of the heat exchanger 4, and the upper end of the heat absorber 9 is arranged above the upper end of the heat absorber 9. The second heat exchange air passage 15 of the heat exchanger 4 may be configured to be part of the second dehumidification passage 21b.

That is, in the second heat exchange air passage 15 of the heat exchanger 4, the pressure loss is small in the air passage above the upper end of the heat absorber 9, and the pressure loss is high in the air passage below the upper end of the heat absorber 9. Therefore, a large amount of air can be passed through a relatively high temperature region upstream in the refrigerant flow direction of the radiator 7 located downstream of the second heat exchange air passage 15 of the heat exchanger 4 . As a result, power consumption can be reduced.

In addition, the lower end of the heat absorber 9 is arranged below the lower end of the windward side of the second heat exchange air passage 15 of the heat exchanger 4 , and the heat absorber 9 is placed below the second heat exchange air passage 15 of the heat exchanger 4 . A first heat absorber portion 26 arranged below the lower end of the windward side of the heat exchanger 4, and a second heat absorber arranged above the lower end of the windward side of the second heat exchange air passage 15 of the heat exchanger 4 A portion 27 is provided, and air sucked into the main body case 1 from the air suction port 2 by the blower 5 is passed through the first heat exchange air passage 14 of the heat exchanger 4, the first heat absorber portion 26, and the second heat absorbing portion. A third dehumidification path 21c may be provided to blow air out of the main body case 1 from the air outlet 3 via the container portion 27, the second heat exchange air passage 15 of the heat exchanger 4, the radiator 7, and the blower 5.

By passing through the heat absorber 9 twice in this manner, the air becomes cooler and passes through the second heat exchange air passage 15 of the heat exchanger 4 . That is, by further cooling the leeward side of the first heat exchange air passage 14 of the heat exchanger 4 , the air at the outlet of the first heat exchange air passage 14 of the heat exchanger 4 can be further cooled. As a result, dehumidification performance can be improved.

INDUSTRIAL APPLICABILITY The dehumidifying device according to the present invention enables improvement in dehumidifying performance, and is useful as a dehumidifying device or the like used in living room space or the like.

REFERENCE SIGNS LIST 1 body case 2 air inlet 3 air outlet 4 heat exchanger 5 blower 6 compressor 7 radiator 8 expander 9 heat absorber 10 refrigerant pipe 11 heat transfer plate A
12 Heat transfer plate B
13 rib 14 first heat exchange air passage 15 second heat exchange air passage 16 casing part 17 motor part 18 vane part 19 suction port 20 discharge port 21 dehumidification passage 21a first dehumidification passage 21b second dehumidification passage 21c third Dehumidifying path 22 Water receiving means 23 Heat absorber cover 24 Tank 25 Drain hole 26 First heat absorber part 27 Second heat absorber part

Claims (4)

a body case having an air inlet and an air outlet;
a refrigeration cycle in which a compressor, a radiator, an expander, and a heat absorber are connected in order;
an air blower that blows air outside the main body case sucked from the air suction port to the outside of the main body case from the air outlet after passing through the refrigerating cycle;
a heat exchanger that exchanges heat between the air flowing through the first heat exchange air passage and the air flowing through the second heat exchange air passage;
The air sucked into the main body case from the air suction port by the blower is passed through the first heat exchange air passage of the heat exchanger, the heat absorber, the second heat exchange air passage of the heat exchanger, and the heat dissipation. a first dehumidification path that blows out of the main body case from the air outlet via the air blower;
The air sucked into the main body case from the air suction port by the blower is transferred to the first heat exchange air passage of the heat exchanger, the second heat exchange air passage of the heat exchanger, the radiator, and the blower. and a second dehumidification path that blows out of the main body case from the air outlet through the air outlet. The first heat exchange air passage that exchanges heat with the second heat exchange air passage in the second dehumidification path,
From the first heat exchange air passage that exchanges heat with the second heat exchange air passage in the first dehumidification path,
2. The dehumidifier according to claim 1, wherein heat is exchanged with windward air in the air flowing through the first heat exchange air passage. The heat absorber and the heat exchanger are arranged in order in the horizontal direction,
The upper end of the heat absorber is arranged below the upper end of the heat exchanger,
3. The dehumidifier according to claim 1, wherein the second heat exchange air passage of the heat exchanger above the upper end of the heat absorber is part of the second dehumidification passage. the lower end of the heat absorber is arranged below the lower end of the windward side of the second heat exchange air passage of the heat exchanger;
The heat absorber is
a first heat absorber portion disposed below a lower end of the windward side of the second heat exchange air passage of the heat exchanger;
a second heat absorber portion disposed above the lower end of the windward side of the second heat exchange air passage of the heat exchanger;
Air sucked into the main body case from the air suction port by the blower is passed through the first heat exchange air passage, the first heat absorber portion, the second heat absorber portion, and the heat exchanger of the heat exchanger. 4. A third dehumidifying path for blowing out the air from the air outlet to the outside of the main body case through the second heat exchange air passage, the radiator, and the blower. dehumidifier.

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