JPH0639775Y2 - Electronic dehumidifier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to an electronic dehumidifier utilizing the Bertie effect.

<Prior Art> Conventionally, electronic dehumidifiers have been widely used to prevent dew condensation on a closed type switchboard and the like, and are structurally intended to be installed on the switchboard.

However, in an environment such as the hot and humid rainy season as in Japan, it can be effectively used not only for industrial equipment such as switchboards but also for various equipments, and due to its simplicity, it can be used in general households as well. Is being considered.

FIG. 2 is a vertical sectional view showing an example of a conventional electronic dehumidifier,
Reference numeral 1 denotes an electronic cooling element that utilizes the Bertheyer effect. A cooling fin 2 is provided on the cooling surface side, and a heat radiation fin 3 is provided on the heat radiation surface side with a heat guide plate 4 interposed. Here, the operation as a dehumidifier will be described with reference to FIG. 2. An intake port 13 is provided below a vertically elongated outer box 17 in the vertical direction, and the humid air 7 taken in here is from the electronic cooling element 1. While passing through the cooling fins 2 attached to the cooling surface side and rising, the water vapor in the humid air is removed by forming water drops 6 to dehumidify.

The cooled and dehumidified airflow 9 further rises, and this time it is heated while passing through the gap of the heat radiating fins 3 attached to the heat generating surface side of the electronic cooling element 1 with the heat guide plate 4 interposed. As a result, the relative humidity in the air flow 9 is reduced, and the dry air 8 is directed upward, and the power supply transformer 12 for driving is cooled by air, and is recirculated from the upper exhaust port to the inside of the device.

A fan 10 is provided just before the exhaust port 14, but this is configured so that it can be operated especially in high humidity, and normally, a ventilation path for the air flow from the air supply port to the exhaust port. Since 9 extends linearly from bottom to top, it is configured so that a sufficient dehumidifying effect can be obtained by natural convection.

<Problems to be solved by the invention> However, since most of them have been intended for use in large-volume equipment such as closed type switchboards, large-capacity power transformers and rectifiers are used. The entire dehumidifier has been enlarged, and in particular, the ventilation passage is downward as described above for the purpose of reducing the power consumption by limiting the constant operation of the fan by utilizing the natural convection of air. Since it is formed in a straight line from the top to the top, the overall structure of the electronic dehumidifier must be vertically long, and a drainage funnel is provided at the bottom to remove water droplets generated by dehumidification, so it should be in a horizontal position. Since it cannot be used, there is a problem that the use is limited to a device having a spatial margin in the installation place such as inside a closed type switchboard.

<Means for Solving Problems> The present invention has been devised in the arrangement of required parts, paying particular attention to the fact that the structure is vertically long because of the conventional structure.
In the present invention, the ventilation path from the intake port to the exhaust port is formed in a meandering shape around the dehumidifying unit, and a fan is used to forcibly suck and exhaust the dehumidifying unit. The cooling fins are installed on the rear side of the dehumidifier, and the cooling fins are installed directly on the back side of the dehumidifier. Is installed to form a downward cooling air passage between the cooling fins. Further, on the back surface of the dehumidifying unit, an upward ventilation path is formed by the heat radiation fins and the partition wall. Both of these ventilation channels
The space formed between the floor surface of the dehumidifying unit chamber and the lower part of the dehumidifying unit communicates with each other as a communication air passage, and the whole is formed as a meandering air passage.

An exhaust port is provided at the upper end of the partition wall, and the dehumidified and dried air flow is forcibly exhausted from the exhaust port by the fan.

<Operation> According to the present invention, since the ventilation passage is changed from the vertical direction of the conventional dehumidifier to the meandering lateral direction and the ventilation passage is effectively secured, it is possible to compress in the vertical direction. Since cool air flows downward between the cooling fins and warm air flows upward between the radiating fins, so-called natural convection phenomenon can be utilized to the maximum, and the capacity of the fan that performs forced ventilation can be reduced, and dehumidification efficiency can be increased. The dehumidifier can be made compact and lightweight.

<Embodiment> FIG. 1 shows an embodiment of the present invention, and the same parts as those in FIG. 2 are denoted by the same reference numerals.

The outer box 17 of the dehumidifier is separated into an upper half dehumidifying unit chamber 17a and a control unit chamber 17b for accommodating the drive power source unit and the electronic circuit component 11 of the control unit in the lower portion.

In the dehumidifying unit chamber 17a, a dehumidifying unit having a cooling fin 2 on the cooling surface side of the electronic cooling element 1 and a heat radiating fin 3 on the heat radiating surface side is housed in the front surface of the partition wall 15, and the fan 10 is housed in the rear surface of the partition wall 15. Has been done.

The dehumidifying unit chamber 17a is provided with a large number of pores in the front upper part and the front part of the upper surface to form the intake port 13, and on the back side are provided with a large number of pores forming the exhaust port 14 of the partition wall 15. The upper part is opened to form a discharge port 16.

During the operation as a dehumidifier, the humid air 7 inside the equipment is sucked through the pores of the intake port 13 and cooled while descending the cooling air passage between the cooling fins 2 of the dehumidifying unit, and the saturated steam drops 6 Then, it drops on the floor of the dehumidifying unit room and is discharged from the drainage funnel 5 to the outside of the equipment, but the dehumidified airflow 9 goes to the back side of the dehumidifying unit via the communication ventilation path along the floor. It is heated by passing through the rising heat dissipation ventilation passage between the heat dissipation fins 3 and the heat dissipation fins 3 and then reaches the discharge port 16 through the dry air 8 and is forcibly discharged from the discharge port 14 by the fan 10. .

<Effect> In the present invention, since the cooling fins are provided on the front surface of the dehumidifying unit and the heat radiating fins are provided on the rear surface, the heat conducting plate for attaching the heat radiating fins is not required, and the dehumidifying unit is made compact. It became possible to easily construct a meandering type ventilation path by simply storing it in a room, and to reduce the height dimension of the vertically long dehumidifier.

Also, since the air passage was meandering, it was necessary to operate the fan at all times.However, as a dehumidifier with the same dehumidifying capacity by increasing the dehumidifying efficiency and reducing the fan capacity by utilizing the natural convection phenomenon of the airflow in the dehumidifying unit room, The components such as the power transformer and the rectifier of the driving power source unit can be downsized, which effectively acts on the downsizing of the whole.

Since it is no longer necessary to consider the height of the dehumidifier and the miniaturization is progressing as a whole, not only large equipment but also small-capacity equipment and industrial equipment such as measuring instruments are used in households. It has also become possible to apply it to equipment for use as a condensation prevention device.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of the electronic dehumidifier. FIG. 2 is a longitudinal sectional view of an embodiment of a conventional electronic dehumidifier. 1 ... Electronic cooling element, 2 ... Cooling fins 3 ... Radiation fins, 4 ... Heat guide plate 5 ... Drainage funnel, 6 ... Water droplets 7 ... Humidified air flow, 8 ... Dry air flow 9 ... Air Flow, 10 ... Juan 11 ... Electronic circuit parts, 12 ... Power transformer 13 ... Intake port, 14 ... Exhaust port 15 ... Bulkhead, 16 ... Outlet port 17 ... Outer box

Claims (1)

[Scope of utility model registration request] 1. A dehumidifying unit in which an electronic cooling element has a cooling surface and a heat radiating surface sandwiched by a cooling fin and a heat radiating fin, a dehumidifying unit chamber for housing the dehumidifying unit, and a ceiling portion of the dehumidifying unit chamber, The dehumidifying unit is attached so that the cooling fins are on the front side, and an air passage formed between the floor surface of the dehumidifying unit chamber and the dehumidifying unit, and between the ceiling and the floor surface of the dehumidifying unit chamber. Also, a partition wall provided behind the heat radiation fin and having a discharge port at a position where an upward ventilation path is formed in the heat radiation fin, and a partition wall provided near the discharge port of the partition wall to remove air in the dehumidifying unit chamber. An electronic device comprising: a fan forcibly discharging the air; and an intake port provided at a position in the upper front portion of the dehumidifying unit chamber where a downward ventilation path is formed in the cooling fin. Humidifier.