JP2003038930A - Dehumidifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dehumidifier with which the leakage of radiant heat is prevented with a simple structure having reduced number of parts and moisture is efficiently discharged from a dehumidifying rotor. SOLUTION: The dehumidifier with which the moisture is efficiently released is obtained by preventing the leakage of the radiant heat by providing a shield plate between a heater of a heating unit and an outside frame to shut-off the direct radiant heat from the heater and shielding indirect radiant heat with an air layer between the shield plate and the outside frame to reduce the heating loss of the dehumidifying rotor on which the moisture is adsorbed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dehumidifier for dehumidifying indoor air.

[0002]

2. Description of the Related Art Conventionally, a dehumidifier of this type is generally shown in FIGS. 6 and 7.

The dehumidifier will be described below with reference to the drawings.

As shown in the figure, inside the main body 101, a dehumidifying rotor 103 for adsorbing and desorbing moisture in the air rotated by a drive motor 102, and this dehumidifying rotor 1
A heating unit 104 for heating 03 is provided, and the heating unit 104 includes a heater 104a. The dehumidifying rotor 103 heated by the heating heater 104a emits high-temperature and high-humidity air, and this high-temperature and high-humidity air is transferred to the heat exchanger 105.
Then, condensed water is generated when passing through the sub heat exchanger 105a, and this condensed water flows into the drainage tank 11. A partition plate (not shown) that supports the dehumidifying rotor 103, the heat generating means 104, the heat exchanger 105, and the sub heat exchanger 105a is provided. In addition, from the dehumidifying rotor 103 to the heat exchanger 10
5, the first heat-blowing fan 106 for ventilating the closed circulation path a returning to the sub heat exchanger 105a and the heat generating unit 104
And a second blower fan 107 is provided in the air passage for sucking indoor air and discharging dry air in the main body 101. The heating unit 104 has a blower area 104c and a heating area 104d, and the heater 104a and the outer frame 1 are provided.
By providing a shielding plate 104e having a plurality of holes between 04b, it serves to suppress the radiant heat to the peripheral parts by the heater 104a and to appropriately adjust the amount of air passing through the air blowing region 104c and the heating region 104d. ing. In addition, the metal inner frame 104 of the heat generating unit 104
f is installed so that the gap between the rotating dehumidifying rotor 103 and the metal dehumidifying rotor holding frame 103a is a gap of 0.1 mm to 0.5 mm, and prevents air leakage from the closed circulation path a. In addition, a heater 110 is provided in the vicinity of the air outlet 109 to quickly dry the clothes when drying the clothes.

[0005]

In such a conventional dehumidifier, since the shield plate has a plurality of holes, radiant heat leaks from the holes to lower the thermal efficiency, and the shield plate is used as a heater. There is a problem that the number of parts must be increased and the number of parts increases, and it is required to reduce the number of parts and prevent leakage of radiant heat with a simple structure, and to efficiently supply radiant heat to the dehumidifying rotor.

Further, there is a problem that the shield plate itself absorbs the heat and indirectly disperses the heat into the surroundings to lower the heat efficiency to the dehumidifying rotor. Therefore, the heat absorption of the shield plate is reduced to improve the heat efficiency. It is required to effectively use the heat generation amount of the heater and reduce the heat influence on peripheral parts.

Further, air leaks into the gap between the shield plate and the outer frame,
There is a problem that the heater is not evenly blown,
It is required to reduce the resistance of ventilation while shielding radiant heat and to uniformly blow air to the heater.

Further, although a small gap is provided in the close surfaces of the inner frame of the heat generating unit and the dehumidifying rotor holding frame, since they are parallel to each other, air in the closed circulation path easily leaks and dehumidification efficiency decreases. Therefore, it is required to reduce air leakage from the gap between the inner frame of the heat generating unit and the dehumidifying rotor holding frame and improve the dehumidification efficiency.

Further, due to the warp and distortion of the partition plate, the metal inner frame of the heat generating unit and the metal dehumidifying rotor holding frame of the dehumidifying rotor are brought into contact with each other during rotation, and the plating on the metal surface is peeled and corroded or the metals are rubbed against each other. There is a problem that abnormal noise is generated, and it is required that the plating does not peel off and corrode even when it comes into contact during rotation, and that rubbing noise between metals does not occur.

Further, since the wind speed distribution inside the heater for drying clothes is not uniform, the temperature of the warm air blown out from the outlet is not uniform, and the clothes hung above the main body are likely to have uneven drying, and the drying efficiency is high. There is a problem that it is bad, and it is required to improve the drying efficiency of clothes by making the temperature of the warm air blown out from the air outlet uniform.

The present invention is intended to solve such a conventional problem by preventing the radiant heat of the heater from leaking to peripheral parts, and by effectively utilizing the radiant heat of the heater to heat the dehumidifying rotor. In addition, the ventilation of the heating heater can be made uniform and the moisture of the dehumidifying rotor can be efficiently released, and air leakage from the gap between the inner frame of the heat generating unit and the dehumidifying rotor holding frame can be reduced.
Further, when the inner frame of the heat generating unit and the metal dehumidifying rotor holding frame contacted at the time of rotation, the plating on the metal surface was not peeled and corroded, or abnormal noise was not generated, and the material passed through the heater. It is an object of the present invention to provide a dehumidifier with improved clothes drying efficiency by making the wind speed distribution and temperature distribution of the flow uniform.

[0012]

In order to achieve the above object, the dehumidifier of the present invention has a dehumidifying rotor for adsorbing moisture in the air inside the main body, a driving means for rotating the dehumidifying rotor, and the dehumidifying device. A heat generating means for releasing water from the rotor, a heat exchanger for dew condensation of the high temperature and high humidity air discharged from the dehumidifying rotor by the heat generating means, and a high temperature and high humidity air which has passed through the heat exchanger are returned to the heat generating means. A duct, and a first blower for closing and circulating the air passing through the heat generating means, the dehumidifying rotor, the heat exchanger, and the duct in this order,
It has a second air blowing means for cooling the heat exchanger and adsorbing moisture to the dehumidifying rotor to send out dry air from the air outlet, and a heating element front face is provided between the heating element of the heating means and the outer frame. A shielding plate for covering is provided.

According to the present invention, it is possible to obtain a dehumidifier capable of preventing the radiant heat of the heater from leaking to peripheral parts.

According to another means, the surface of the shielding plate provided in the heating means on the heating element side has gloss.

According to the present invention, it is possible to obtain a dehumidifier in which the radiant heat of the heater is effectively used to increase the heating amount of the dehumidifying rotor.

Another means is to provide an inclined surface on the air inflow side of the shielding plate provided in the heat generating means.

According to the present invention, it is possible to obtain a dehumidifier capable of uniformly ventilating the heating heater and efficiently releasing the moisture of the dehumidifying rotor.

In another means, the cross-sectional shape of the inner frame of the heat generating means is formed in a step shape in close proximity along the dehumidifying rotor and the protruding dehumidifying rotor holding frame.

According to the present invention, it is possible to obtain a dehumidifier capable of reducing air leakage from the gap between the inner frame of the heat generating unit and the dehumidifying rotor holding frame.

As another means, the dehumidifying rotor holding frame of the inner frame of the heat generating means is made of heat resistant synthetic resin.

According to the present invention, when the inner frame of the heat generating unit and the metal dehumidifying rotor holding frame come into contact with each other during rotation, the plating on the metal surface is not peeled off and corroded, and no abnormal noise is generated. A dehumidifier is obtained.

Another means is to have a heat generating part between the second blowing means and the air outlet, and to provide a metal mesh having a small aperture ratio on the downstream side of the heat generating part.

According to the present invention, it is possible to obtain a dehumidifier having an improved clothes drying efficiency by making the wind velocity distribution and the temperature distribution of the flow passing through the heater uniform.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, a dehumidifying rotor for adsorbing moisture in air, a driving means for rotating the dehumidifying rotor, a heat generating means for releasing moisture from the dehumidifying rotor, and a heat generating means for generating heat Means for dew condensation of the high temperature and high humidity air discharged from the dehumidifying rotor by means, a duct for returning the high temperature and high humidity air passing through the heat exchanger to the heat generating means, the heat generating means, the dehumidifying rotor, and the heat exchange First to circulate the air passing through the vessel and duct in this order
It has a blower means and a second blower means for cooling the heat exchanger and adsorbing moisture to the dehumidifying rotor to send out dry air from the outlet, and between the heater of the heat generating means and the outer frame. A shield plate is provided to cover the front surface of the heating element. The shield plate blocks direct radiant heat from the heater,
The air layer between the shielding plate and the outer frame has the effect of blocking indirect radiant heat.

Further, since the surface of the shielding plate provided in the heating means on the side of the heating element has gloss, the shielding plate shields the direct radiant heat of the heating heater to the dehumidifying rotor. It has the effect that it can be reflected toward.

Further, by providing an inclined surface on the air inflow side of the shielding plate provided in the heat generating means, the airflow to the heating heater can be rectified by the inclined surface, and the air velocity passing through the heating heater can be made uniform. Has the effect of being able to equalize.

Further, since the inner frame of the heat generating means is formed in a stepped shape in close proximity to each other along the dehumidifying rotor and the protruding dehumidifying rotor holding frame, the inner frame of the heat generating means and the dehumidifying rotor holding frame are formed. This has the effect of making it possible to lengthen the leakage path of the airflow from the gap formed between the and, and to reduce the leakage of the airflow.

Further, since the dehumidifying rotor holding frame on the inner frame side of the heat generating means is made of heat-resistant synthetic resin, the metal peeling and rubbing due to the contact between the metal inner frame of the heat generating means and the dehumidifying rotor holding frame during rotation. It has the effect of preventing noise.

Further, a heat generating portion is provided between the air outlet and the second blowing means, and a metal mesh having a small opening ratio is provided on the downstream side of the heat generating portion, so that the wind velocity distribution inside the heat generating portion is made uniform. Therefore, it has an effect that the temperature of the warm air blown from the air outlet can be made uniform and can be used for drying clothes.

[0030]

Example 1 As shown in FIGS. 1 and 2,
A dehumidifying rotor 2 that adsorbs moisture in the air in the main body 1
A driving means 3 for rotating the dehumidifying rotor, and a heat generating unit 4 for releasing water from the dehumidifying rotor,
A heat exchanger 5 for condensing the high temperature and high humidity air discharged from the dehumidifying rotor 2 by the heat generating unit 4 and a duct 5a for returning the high temperature and high humidity air passing through the heat exchanger to the heat generating means are built in. . The heat generating unit 4, the dehumidifying rotor 2, the heat exchanger 5, and the duct 5a are supported by a partition plate (not shown) and fixed inside the main body 1.
The closed air passage a for closing and circulating the air passing through the heat generating unit 4, the dehumidifying rotor 2, the heat exchanger 5, and the duct 5a in this order by the first air blower 7, and the heat exchanger 5 by the second air blower 8. At the same time, the dehumidifying rotor 2 is made to adsorb moisture to form an air passage b through which dry air is sent out from the air outlet. In the closed circulation air passage a, the dew condensation water generated by dew condensation in the heat exchanger 5 is stored in the drainage tank 9.

Further, the heater 4a of the heat generating unit 4
A shield plate 4c is provided between the outer frame 4b and the outer frame 4b so as to cover the front surface of the heater 4a, and an air layer 4d is provided between the outer frame 4b and the shield plate 4c.

In the above structure, the direct radiant heat from the heater 4a of the heat generating unit 4 is blocked by the shield plate 4c, and the indirect radiant heat is shielded by the shield plate 4c and the outer frame 4.
It is insulated by the air layer 4d provided between b and can prevent the heat from diffusing to the outside of the heat generating unit 4 through the outer frame 4b. That is, the heat generation capacity of the heater 4a can be reduced, and efficient dehumidification operation without heat loss can be performed.

(Embodiment 2) After this embodiment, the same components as those in Embodiment 1 are designated by the same reference numerals and detailed description thereof will be omitted.

The surface of the shield plate 4c provided in the heat generating unit 4 on the side of the heater 4a is subjected to a surface treatment having gloss such as a mirror finish.

In the above structure, the direct radiant heat from the heater 4a of the heat generating unit 4 is shielded by the shield plate 4c, and the indirect radiant heat is shielded by the shield plate 4c and the outer frame 4.
It is insulated by the air layer 4d provided between b and can prevent the heat from diffusing to the outside of the heat generating unit 4 through the outer frame 4b. Further, the shield plate 4c can reflect the direct radiant heat from the heater 4a to the dehumidifying rotor 2 side to improve the thermal efficiency, and reduce the heat loss dissipated to the surroundings.

Therefore, when the dehumidifying rotor 2 is heated to the same temperature as the conventional one, the input of the heater 4a can be reduced, and the dehumidifying operation can be efficiently performed with energy saving.

(Embodiment 3) As shown in FIG. 3, an inclined surface 4d is provided on the air inflow side of a shielding plate 4c provided in the heat generating unit 4.
Is provided, and an air layer 4d is interposed between the shielding plate 4c and the outer frame 4b.

In the above structure, the direct radiant heat from the heater 4a of the heat generating unit 4 is shielded by the shield plate 4c, and the indirect radiant heat is shielded by the shield plate 4c and the outer frame 4.
It is insulated by the air layer 4d provided between b and can prevent the heat from diffusing to the outside of the heat generating unit 4 through the outer frame 4b. Furthermore, since the inclined surface 4d can rectify the air flow toward the inside of the heater 4a to make the wind velocity distribution substantially uniform,
The heat exchange efficiency when passing through the heater 4a is improved, and the dehumidifying operation can be performed efficiently.

(Embodiment 4) As shown in FIG. 4, a convex portion 10a is provided on the inner frame 10 of the heat generating unit 4, and the convex portion 10a is formed.
Is a minute distance (0.5 mm or less) along the surface of the dehumidifying rotor 2 and the convex portion 11a of the dehumidifying rotor holding frame 11.
Is arranged so as to be spaced apart from each other.

In the above structure, a gap of 0.5 mm or less is formed stepwise between the inner frame 10 of the heat generating unit 4 and the dehumidifying rotor holding frame 11, and leakage of hot air heated by the heater 4a is extremely reduced. It can be suppressed and the dehumidification performance can be improved.

(Embodiment 5) As shown in FIG. 4, the dehumidifying rotor holding frame 11 on the inner frame 10 side of the heat generating unit 4 is made of heat resistant synthetic resin, and its thickness is slightly larger than that of metal. ing.

In the above structure, when the metal inner frame 10 of the heat generating unit 4 and the resin dehumidifying rotor holding frame 11 are brought into contact with each other due to the warp or distortion of the partition plate 6, the surface of the synthetic resin is brought into contact with the metal. However, since the metals do not rub against each other, there is no peeling of the plating or rubbing noise, and it can be used stably for a long period of time.

(Embodiment 6) As shown in FIG. 5, a heat generating portion 13 for drying clothes is provided between the second blowing means 8 and the outlet 12, and the upper surface of the heat generating portion 13 has a small aperture ratio. It is configured to be covered with the metal mesh 13a.

In the above structure, the metal mesh 13a having a small aperture ratio can rectify the wind flowing inside the heat generating portion for drying clothes and make the wind speed distribution uniform.
The temperature of the hot air blown from the air outlet 12 through the air can be made uniform, and the clothes can be dried efficiently.

[0045]

As is apparent from the above embodiments, according to the present invention, since the shield plate is provided between the heater of the heat generating unit and the outer frame, direct radiant heat from the heater is shielded. It is shielded by the plate, and indirect radiant heat is insulated by the air layer provided between the shield plate and the outer frame, and the heat can be prevented from diffusing to the outside of the heat generating unit through the outer frame,
It is possible to provide a dehumidifier having an effect of reducing the input of the heating heater.

Further, since the surface of the shield plate on the heater side is glossy, the radiant heat from the heater is directly reflected on the dehumidifying rotor side by the shield plate to improve the thermal efficiency. Therefore, it is possible to provide a dehumidifier having an effect of efficiently removing water from the dehumidifying rotor.

Further, by providing the inclined surface on the air inflow side of the shielding plate, the inclined surface rectifies the air blown into the inside of the heater and makes the temperature distribution and the air velocity distribution of the warm air supplied to the dehumidifying rotor uniform. Therefore, it is possible to provide a dehumidifier having an effect of stably maintaining a high dehumidifying ability.

Further, since the cross-sectional shape of the inner frame of the heat generating unit is formed in a stepped shape so as to be close to the dehumidifying rotor and the dehumidifying rotor holding frame, the air leakage path formed in the gap with the dehumidifying rotor holding frame is bent. Therefore, it is possible to provide a dehumidifier having an effect that it can be taken for a long time and that leakage can be suppressed to be small and dehumidification efficiency can be kept high.

Further, since the dehumidifying rotor holding frame on the inner frame side of the heat generating unit is made of heat-resistant synthetic resin, even if the metal inner frame of the heat generating unit and the synthetic resin dehumidifying rotor holding frame come into contact with each other, Since the metals do not rub against each other, it is possible to prevent the plating from being peeled off and corroded, and it is possible to provide a dehumidifier having an effect that no rubbing noise is generated.

Further, the heat generating portion is provided between the second blowing means and the air outlet, and the metal mesh having a small opening ratio is provided on the downstream side of the heat generating portion, so that the metal mesh flows inside the heat generating portion. Since the air velocity distribution can be rectified and the air velocity distribution can be made uniform, the temperature of the hot air blown from the air outlet can be made uniform, and a dehumidifier having an effect of being able to dry clothes efficiently can be provided.

[Brief description of drawings]

FIG. 1 is a sectional view of a dehumidifier of Examples 1 to 6 of the present invention.

FIG. 2 is a sectional view of the heat generating unit 4 according to the first embodiment.

FIG. 3 is a sectional view of a heat generating unit 4 according to the third embodiment.

FIG. 4 is a cross-sectional view of a heat generating unit 4 and a dehumidifying rotor 2 according to the fourth and fifth embodiments.

FIG. 5 is a rear side upper perspective view of the dehumidifier of the sixth embodiment.

FIG. 6 is a sectional view of a conventional dehumidifier.

FIG. 7 is a sectional view of a heat generating unit and a dehumidifying rotor of the dehumidifier.

[Explanation of symbols]

1 body 2 dehumidification rotor 3 drive means 4 Heating unit (heating means) 4a heating heater 4b outer frame 4c shield plate 4e inclined surface 5 heat exchanger 5a duct 7 First ventilation means 8 Second ventilation means 9 drainage tank 10 Inner frame 11 Dehumidifying rotor holding frame 12 Outlet 13 Heat generating part 13a metal mesh

Continued front page    (72) Inventor Masafumi Tsubouchi             6-2 61, Imafuku Nishi, Joto-ku, Osaka City, Osaka Prefecture               Matsushita Seiko Co., Ltd. F term (reference) 4D052 AA08 CB00 DA03 DB02 DB04                       FA05

Claims (6)

[Claims] 1. A dehumidifying rotor for adsorbing moisture in the air, a drive means for rotating the dehumidifying rotor, a heat generating means for releasing moisture from the dehumidifying rotor, and a heat generating means for removing the dehumidifying rotor from the inside of the main body. A heat exchanger for dew condensation of the discharged high temperature and high humidity air, a duct for returning the high temperature and high humidity air that has passed through the heat exchanger to the heat generating means, the heat generating means, the dehumidifying rotor, the heat exchanger, and the duct in this order. It has a first blower for closing and circulating the passing air, and a second blower for cooling the heat exchanger and adsorbing moisture to the dehumidifying rotor to send out dry air from the outlet, A dehumidifier with a shield plate that covers the front of the heating element between the heater and the outer frame. 2. The dehumidifier according to claim 1, wherein the surface of the shielding plate provided in the heat generating means on the heating element side has gloss. 3. The dehumidifier according to claim 1, wherein an inclined surface is provided on the air inflow side of the shielding plate provided in the heat generating means. 4. A dehumidifying rotor for adsorbing moisture in the air, a driving means for rotating the dehumidifying rotor, a heat generating means for releasing moisture from the dehumidifying rotor, and a heat generating means for removing the dehumidifying rotor from the inside of the main body. A heat exchanger for dew condensation of the discharged high temperature and high humidity air, a duct for returning the high temperature and high humidity air that has passed through the heat exchanger to the heat generating means, the heat generating means, the dehumidifying rotor, the heat exchanger, and the duct in this order. Among the heat generating means, there is a first air blowing means for closing and circulating the passing air, and a second air blowing means for cooling the heat exchanger and adsorbing moisture to the dehumidifying rotor to send out dry air from the air outlet. A dehumidifier in which the cross-sectional shape of the frame is formed in a step shape in close proximity to each other along the dehumidifying rotor and the protruding dehumidifying rotor holding frame. 5. The dehumidifier according to claim 4, wherein the dehumidifying rotor holding frame of the inner frame of the heat generating means is made of heat resistant synthetic resin. 6. The dehumidifier according to claim 1, wherein a heat generating portion is provided between the second blowing means and the air outlet, and a metal mesh having a small opening ratio is provided on the downstream side of the heat generating portion.