JP2002355527A - Electric dehumidifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric dehumidifier with which a large amount of flowing air can be obtained without increasing the revolution speed of a fan and increasing negative pressure inside its main body. SOLUTION: This electric dehumidifier is provided with the fan 4, a moisture absorbing element 3 arranged on the upstream side from the fan 4 for absorbing moisture contained in the air sucked from an intake, a heating means for heating the air passing through the element 3 in order to remove the moisture absorbed by the element 3 and a heat exchanger 2. An air passage is arranged between the heat exchanger 2 and the fan 4 so that air can bypass the element 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to an electric dehumidifier. More specifically, the present invention relates to an electric dehumidifier capable of obtaining a large air flow without increasing the rotation speed of a blower fan and without increasing a negative pressure inside a main body.

[0002]

2. Description of the Related Art Conventionally, as a household electric dehumidifier, there is a dry dehumidifier using a moisture absorbing element such as zeolite having moisture absorbing and releasing properties.

[0003] In a conventional dry dehumidifier, a moisture absorbing element and a heat exchanger for cooling the moisture released from the moisture absorbing element and condensing the moisture are arranged in order in the upstream of the blower fan. . Therefore, the air sucked into the main body by the negative pressure of the blower fan first passes through the heat exchanger, and then, when passing through the moisture absorbing element, moisture contained in the air is absorbed by the moisture absorbing element, and then, the dry air Is released into the room.

The moisture absorbed by the moisture absorbing element is released from the moisture absorbing element by passing air heated by a heater provided inside the dehumidifier through the moisture absorbing element. The dehumidified moisture is cooled by the above-mentioned heat exchanger and dew condensation occurs.
Stored in tank.

[0005]

In order to improve the cooling efficiency of the heat exchanger and the drying efficiency of the laundry to be dried indoors, it is effective to increase the air volume. However, since the ventilation resistance of the moisture absorbing element is high, it is necessary to increase the rotation speed of the blower fan in order to increase the air volume, which causes a problem of causing noise.

In addition, since the ventilation resistance of the moisture-absorbing element is high, if the air volume is increased, the pressure in the main body is greatly reduced, and the steam released from the moisture-absorbing element is cooled by the heat exchanger and discharged to the outside of the circulation path for condensation. As a result, there is a problem that the dehumidifying efficiency is reduced.

The present invention has been made in order to solve such a problem, and an electric dehumidifier capable of obtaining a large air flow without increasing the rotation speed of a blower fan or increasing a negative pressure inside the main body. The purpose is to provide.

[0008]

The electric dehumidifier of the present invention comprises:
(A) a blower fan disposed inside the main body, for sucking external air from an intake port of the main body, and exhausting air from an exhaust port of the main body; and (b) provided upstream of the blower fan, (C) a heating means for heating the air passing through the moisture absorbing element to remove moisture absorbed by the moisture absorbing element, and (d) An electric dehumidifier provided upstream of the moisture absorbing element and comprising a heat exchanger for cooling and condensing moisture released from the moisture absorbing element, wherein the heat exchanger and the blower fan A passage for bypassing the moisture absorbing element is provided between the two.

A sealed space is formed between the heat exchanger and the blower fan, and an upstream portion and a downstream portion of the space are divided by a partition, and the partition is provided with the moisture absorbing element. It is preferable that a communication hole for communication and a bypass hole for bypassing the moisture absorbing element are formed.

It is preferable that the apparatus further comprises a shutter for opening and closing the bypass passage.

[0011]

Next, the electric dehumidifier of the present invention will be described in more detail with reference to the drawings. FIG. 1 is a cross-sectional view of an electric dehumidifier according to an embodiment of the present invention, showing the vicinity of a moisture absorbing element inside the main body as viewed from the front. FIG. 2 is a cross-sectional view of the electric dehumidifier of FIG. FIG. 3, FIG. 3 is a front view of the electric dehumidifier of FIG. 1, FIG. 4 is a cross-sectional explanatory view of the vicinity of the heat exchanger inside the main body of FIG. 1, viewed from the front, and FIG. 5 is a cross-sectional view of the main body of FIG. FIG. 3 is a cross-sectional explanatory view viewed from above.

The electric dehumidifier shown in FIGS.
A heat exchanger 2, a moisture absorbing element 3, and a blower fan 4 are arranged in this order from the front (left side in FIG. 2) of the main body 1 in the front-rear direction. The air sucked in from the air inlet 5 on the front face of the main body 1 passes through the heat exchanger 2 and the moisture absorbing element 3 to the blower fan 4, the main air intake route R 1, and the heat exchanger 2.
And passes through two paths of a bypass route R <b> 2 reaching the blower fan 4 through the bypass hole 6 while bypassing the moisture absorbing element 3.

The disc-shaped moisture absorbing element 3 provided in the main intake route R1 is made of a material such as zeolite having a moisture absorbing / releasing property and has a honeycomb structure, and therefore has a large airflow resistance. However, as shown in FIGS. 1 and 2, since a bypass route R2 that bypasses the moisture absorbing element 3 is provided separately from the main intake route R1, the rotation speed of the blower fan 4 is increased, A large air volume can be obtained without significantly reducing the pressure.

In the case of the dehumidifier shown in FIGS. 1 and 2, a closed space 7 is formed between the heat exchanger 2 and the blower fan 4, and an upstream portion 7a and a downstream portion of the space 7 are formed. 7
b is divided by a partition wall 8. The partition 8 has a communication hole 9 communicating with the moisture absorbing element 3 and a bypass hole 6 bypassing the moisture absorbing element 3. Therefore, 1
Two intake routes R1 and R2 can be obtained with a simple structure in which a communication hole 9 and a bypass hole 6 are formed in one partition 8.

The flow rate Q1 of the main intake route R1 and the flow rate Q2 of the bypass route R2 may be set as appropriate. For example, it is preferable to set the flow rate at a ratio of about Q1: Q2 = 2: 1.

Although not shown, a shutter for opening and closing the bypass route R2 according to the adjustment of the air volume may be further provided. For example, if a shutter that is opened or closed manually or electrically is provided in the bypass hole 6 of the partition 8, when the air volume is weakened and the air is blown, the bypass hole 6 is closed by the shutter to pass through the moisture absorbing element 3. Only the dried air can be discharged outside the main body.

As shown in FIGS. 2 and 4, the heat exchanger 2 disposed on the front side (left side in FIG. 2) of the main body 1 has a plurality of ventilation holes 11 through which air from the intake port 5 passes. It consists of the formed hollow body. In the present invention, the shape and structure of the heat exchanger are not particularly limited, and a plurality of hollow pipes provided with radiation fins may be used as the heat exchanger.

Further, the heat exchanger 2 has the structure shown in FIGS.
As shown in FIG. 2, a circulation path 14 communicating with a circulation fan 12 and a heater 13 as a heating means is connected. In addition, 15 in FIG. 5 is a motor for rotating the circulation fan 12.

As shown in FIGS. 2 and 4,
A drain port 16 is formed at the lower end of the heat exchanger 2,
The dehumidified water condensed by the heat exchanger 2 is supplied to the drain 1
It is collected in the lower tank 17 through 6.

The blower fan 4 is, as shown in FIG.
It is a so-called centrifugal fan that sucks air from the front of the main body 1 and exhausts it in the radial direction of the blower fan 2. A drive motor 18 for driving the fan 2 is installed at the center of the fan 4.

As shown in FIGS. 2 and 3, an intake port 5 composed of a plurality of slits is formed on the front surface of
An exhaust port 19 for exhausting the dry air that has passed through the moisture absorbing element 3 and absorbed into the room is formed on the upper surface of the device.

In the electric dehumidifier of this embodiment, FIGS.
As shown in (2), the humid air in the room is taken in from the intake port 5, passes through the heat exchanger 2, and is blown to the moisture absorbing element 3 by the blower fan 4. The moist air is
Moisture is absorbed when passing through the moisture absorbing element 3 and is exhausted as dry air out of the main body. At the same time, air exhausted by the blower fan 4 without passing through the moisture absorbing element 3 through the bypass hole 6 can be obtained. Therefore, the cooling of the heat exchanger 2 and the drying of the laundry can be effectively performed by the large air volume obtained by the main intake route R1 and the bypass route R2.

The moisture absorbing element 3 is rotated by the drive motor 18 to absorb the indoor air, and then enters the heating area 20 facing the heater 13 and passes the heated air to the moisture absorbing element 3. The absorbed moisture is released. The dehumidified moisture is cooled and condensed by passing through the heat exchanger 2 on the front side of the main body in FIG. 1 through the communication pipe 21, and is stored in the tank 17 through the drain port 16 as dehumidified water.

Further, in the dehumidifier of the present embodiment, as shown in FIGS. 1 and 5, a bypass region 22 is arranged in parallel with a heating region 20 having a heater 13.
Therefore, a part of the air flowing through the circulation path 14 is heated by the heater 13 and used for dehumidifying the moisture absorbing element 3, but other air is blown to the moisture absorbing element 3 through the bypass region 22 to cause the moisture absorbing element 3 to emit moisture. Used for cooling. Therefore, when the moisture absorbing element 3 shown in FIG. 1 is rotated in the counterclockwise direction, the air passing through the moisture absorbing element 3 is heated by the heater 13 to release the moisture adsorbed by the moisture absorbing element 3, and then,
Since the moisture absorbing element 3 is cooled by the air passing through the bypass region 22, the air flowing through the main intake route R1 can be effectively dehumidified.

[0025]

According to the present invention, by forming a bypass hole, an air path passing through the moisture absorbing element and an air path bypassing the moisture absorbing element can be formed. A large air volume can be obtained without an increase or an increase in negative pressure inside the main body. Further, since a large amount of air is blown out from the exhaust port, the laundry can be dried quickly.

[Brief description of the drawings]

FIG. 1 is an explanatory cross-sectional view of the vicinity of a moisture absorbing element inside a main body as viewed from the front, showing an embodiment of an electric dehumidifier of the present invention.

FIG. 2 is a cross-sectional explanatory view of a main body of the electric dehumidifier of FIG. 1 cut in a front-rear direction.

FIG. 3 is a front view of the electric dehumidifier of FIG.

FIG. 4 is an explanatory cross-sectional view of the vicinity of the heat exchanger inside the main body of FIG. 1 as viewed from the front.

FIG. 5 is an explanatory cross-sectional view of the main body of FIG. 1 cut in a width direction and viewed from above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Heat exchanger 3 Moisture absorption element 4 Blower fan 6 Bypass hole 13 Heater

Claims (3)

[Claims] 1. A blower fan disposed inside a main body for sucking outside air from an intake port of the main body and discharging air from an exhaust port of the main body, and (b) an upstream side of the blower fan. And (c) heating means for heating the air passing through the moisture absorbing element in order to remove moisture absorbed by the moisture absorbing element. And (d) a heat exchanger provided on the upstream side of the moisture absorbing element for cooling the moisture released from the moisture absorbing element to cause dew condensation. An electric dehumidifier comprising a passage between a vessel and a blower fan, the passage bypassing the moisture absorbing element. 2. A sealed space is formed between the heat exchanger and the blower fan, and an upstream portion and a downstream portion of the space are divided by a partition. The electric dehumidifier according to claim 1, wherein a communication hole communicating with the element and a bypass hole bypassing the moisture absorbing element are formed. 3. The electric dehumidifier according to claim 1, further comprising a shutter for opening and closing said bypass passage.