JP2534198Y2 - Electronic dehumidifier and electronic cooler - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic dehumidifying device and an electronic cooling device for dehumidifying using an electronic cooling element having a Peltier effect.

[0002]

2. Description of the Related Art In a conventional electronic dehumidifier, a primary winding of a step-down transformer 4 is connected to an AC power supply 1 via a switch 2 and a fuse 3 as shown in FIG.
The voltage is reduced to a voltage required to drive the plurality of series-connected thermoelectric cooling elements 5, and both input terminals of a bridge-connected rectifier 6 composed of a rectifying diode are provided at both ends of a secondary winding of the transformer 4. To convert AC into DC, connect both ends of a ripple reducing electrolytic capacitor 7 to both output terminals of a rectifier 6, and connect a plurality of the two series-connected electronic cooling devices to both ends of the electrolytic capacitor 7. The element 5 is connected. Further, the conventional electronic cooling device has the same circuit configuration.

[0003]

In the case of the conventional apparatus, since the transformer 4 is used, the weight and volume of the iron core, the coil, etc. are large, and the conversion loss of the transformer 4 is large. The inrush current on the primary side of
There is a problem that it is expensive.

An object of the present invention is to provide an inexpensive electronic dehumidifying device and an electronic cooling device which reduce the weight and reduce the volume while keeping the above points in mind.

[0005]

In order to solve the above-mentioned problems, an electronic dehumidifier and an electronic cooler according to the present invention each have a rectifier comprising a rectifier diode, both input terminals of which are connected to an AC power supply and bridge-connected. And an electrolytic capacitor having both ends connected to both output terminals of the rectifier, and a series circuit of a plurality of electronic cooling elements connected to both ends of the electrolytic capacitor.

[0006]

The electronic dehumidifying device and the electronic cooling device according to the present invention having the above-described structure convert AC into DC by the rectifier, reduce ripple by the electrolytic capacitor, and drive each electronic cooling element. Since no transformer is used, the weight is reduced and the volume is reduced, and there is no transformer conversion loss and the cost is low.

[0007]

An embodiment will be described with reference to FIG.
Both input terminals of a rectifier 9 which is bridge-connected via a fuse 3 and a switch 8 to both ends of an AC power supply 1 are connected, and an electrolytic capacitor 10 is connected to both output terminals of the rectifier 9 and both ends thereof. A plurality of thermoelectric cooling elements 5 of one series and connected in series are connected.

Now, in the conventional example shown in FIG. 2, if five elements 5 of two systems are connected in series, five elements 5 are used. However, in this embodiment, when the same cooling capacity as that of the conventional example is used, ten elements 5 are connected in series, and the output current of the rectifier 9 may be I. Therefore, in the case of the present embodiment, the output current of the rectifier 9 may be reduced to 、 as compared with the conventional case, the heat generated by the rectifier diode is suppressed, the amount of heat is reduced to ４, the cooling fin may be reduced in size, and The volume is small.

[0009]

[Effects of the Invention] Since the present invention is configured as described above, the following effects can be obtained. Both input terminals of a rectifier 9 composed of a bridge-connected rectifier diode are connected to an AC power supply, and both ends of an electrolytic capacitor 10 are connected to both output terminals of the rectifier 9. Since the series circuit of the elements 5 is connected, AC is converted to DC by the rectifier 9, ripple is reduced by the electrolytic capacitor 10, each of the electronic cooling elements 5 is driven, and a transformer is not used as in the related art. The weight can be reduced and the volume can be reduced, and there is no transformer conversion loss and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a connection diagram of one embodiment of the present invention.

FIG. 2 is a connection diagram of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 AC power supply 5 Electronic cooling element 9 Rectifier 10 Electrolytic capacitor

Claims (2)

(57) [Scope of request for utility model registration] 1. A rectifier comprising a rectifier diode having both input terminals connected to an AC power supply and bridge-connected, an electrolytic capacitor having both ends connected to both output terminals of the rectifier,
An electronic dehumidifier comprising: a series circuit of a plurality of electronic cooling elements connected to both ends of the electrolytic capacitor. 2. A rectifier having both input terminals connected to an AC power supply and being bridge-connected and comprising a rectifying diode; an electrolytic capacitor having both ends connected to both output terminals of the rectifier;
An electronic cooling device comprising a series circuit of a plurality of electronic cooling elements connected to both ends of the electrolytic capacitor.