JPH031724Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention consists of a casing forming a ventilation passage connecting an intake port and an exhaust port, and a cooling body disposed near the intake opening in this ventilation passage. a heat radiator disposed closer to the exhaust port than the thermoelectric cooler in the ventilation path; a heat conductor connecting the heat dissipator and the heat generating part of the thermoelectric cooler; The present invention relates to a dehumidifying device including a power transformer for driving an electronic cooling element disposed above the heat radiator, and a rectifier connected to the power transformer and disposed within the casing.

Prior Art FIG. 2 shows a conventional example. FIG. 2 is a longitudinal sectional view of the dehumidifier.

In FIG. 2, 1 is a vertically elongated casing in which a ventilation passage 4 is formed that connects an intake port 2 at the bottom and an exhaust port 3 at the top.
It is composed of.

5 is an electronic cooling element (Peltier element) whose cooling part 5a is joined to a cooling body 6 with cooling fins arranged near the intake port 2 in the ventilation passage 4; 7 is a ventilation element on the side of the exhaust port 3 from the electronic cooling element 5; A heat radiator 8 arranged in the path 4 is a heat conductor that connects the heat radiator 7 and the heat generating portion 5b of the electronic cooling element 5.

Further, reference numeral 9 denotes a power transformer built into the casing 1 above the heat sink 7, and this power transformer 9 is for driving the electronic cooling element 5.

A rectifier 10 is connected to the power transformer 9 and supplies direct current to the electronic cooling element 5. This rectifier 10 is attached to a printed circuit board 11 together with a capacitor (not shown), and includes a heat sink 7 and a heat conductor 8.
and the power transformer 9.

12 is a drainage channel formed in the casing 1 below the cooling body 6, and this drainage channel 12 is connected to the water receiver 1.
3 and a drainage hose 14 connected thereto.

In addition, in the figure, 15 is a power supply fuse, and 16 is a spacer.

When the humid air taken in through the intake port 2 passes through a cooling body 6 connected to an electronic cooling element 5, it reaches a dew point and moisture in the air is removed. The dehumidified air cools the heat radiator 7, becomes dry air, and passes through the exhaust port 3.
more excreted.

The problem that the idea aims to solve The conventional example had the following problems.

The rectifier 10 and capacitor mounted on the printed circuit board 11 are sensitive to heat, but the rectifier 10 and capacitor are connected to the heat sink 7 and the capacitor, which become hot.
The heat conductor 8 and the power transformer 9 which also becomes hot
Because it is located between the two, there is a risk of malfunction due to thermal effects.

That is, the problem with the rectifier 10 was that the rectification efficiency deteriorated.

Although the rectifier 10, the capacitor, and the printed circuit board 11 on which they are mounted are quite large, since they are installed between the heat radiator 7/heat conductor 8 and the power transformer 9,
This compresses the ventilation passage 4 and reduces its ventilation cross-sectional area, resulting in poor air flow.

Means for Solving the Problems The technical means (structure of the invention) taken by this invention to solve the above problems are as follows.

That is, the dehumidifying device of this invention includes a casing forming a ventilation passage connecting an intake port and an exhaust port, and an electronic cooling element having a cooling body disposed near the intake port in the ventilation passage and joined to the cooling part. ,
a heat radiator disposed closer to the exhaust port than the electronic cooling element in the ventilation path; a heat conductor connecting the heat radiator and the heat generating part of the electronic cooling element; and a heat conductor disposed above the heat radiator in the casing. The power transformer includes a power transformer for driving a thermoelectric cooling element, and a rectifier connected to the power transformer and disposed below the heat conductor in the casing.

A feature of this configuration is that the rectifier is placed below the high-temperature heat conductor.

Effect According to the configuration of this invention, there are the following effects.

(a) Since the rectifier is placed below the heat conductor, the rectifier is almost never adversely affected by heat from the heat radiator, heat conductor, or power transformer.
The rectification efficiency of the rectifier is improved.

(b) Since the rectifier is located outside the ventilation path, a sufficient ventilation cross-sectional area is ensured, thus improving air flow.

Embodiment An embodiment of this invention will be described based on FIG. FIG. 1 is a longitudinal sectional view of the dehumidifier.

In FIG. 1, the same reference numerals used in FIG. 2 relating to the conventional example refer to the same parts, parts, etc. as indicated by the reference numerals.

The configuration in which this embodiment differs from the conventional example is as follows.

A power fuse 15 is installed at the bottom of the resin casing 1b.
A storage space 17 for the rectifier 10 is formed in the upper part, and a storage space 18 for the rectifier 10 is formed in the upper part.

A storage space 18 for the rectifier 10 is located below the electronic cooling element 5 and the heat conductor 8, and in this storage space 18, a printed circuit board 1 on which the rectifier 10 and a capacitor (not shown) are mounted is placed.
1 is installed.

The power transformer 9 is attached to the ear portion 8a at the upper end of the heat conductor 8. The power supply fuse 15 is detachable. 19 is a power lamp.

The rest of the configuration is the same as the conventional example, so the explanation will be omitted.

According to this embodiment, it is clear that the effects achieved by the configuration of the invention described above can be obtained.

Effect of invention This idea has the following effects.

(a) Since the rectifier is placed below the heat conductor, it is possible to reliably prevent the rectifier from being adversely affected by heat from the heat radiator, heat conductor, or power transformer, and improve the rectification efficiency of the rectifier. .

(b) Since the rectifier is placed apart from the ventilation path, a sufficient ventilation cross-sectional area can be ensured, and therefore, the fluidity of air can be improved.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a dehumidifying device according to an embodiment of this invention, and FIG. 2 is a longitudinal sectional view of a conventional example. DESCRIPTION OF SYMBOLS 1... Casing, 2... Intake port, 3... Exhaust port, 4... Ventilation path, 5... Electronic cooling element, 5a...
...Cooling part, 5b... Heat generating part, 6... Cooling body, 7...
... Heat sink, 8 ... Heat conductor, 9 ... Power transformer,
10... Rectifier, 12... Drainage channel.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) Electronic cooling comprising a casing forming a ventilation passage connecting an intake port and an exhaust port, and a cooling body disposed near the intake port in this ventilation passage joined to a cooling part. a heat radiator disposed closer to the exhaust port than the electronic cooling element in the ventilation path; a heat conductor connecting the heat radiator and the heat generating part of the electronic cooling element; A dehumidifying device comprising: a power transformer for driving an electronic cooling element disposed above; and a rectifier connected to the power transformer and disposed below the heat conductor within the casing. (2) the casing is of a vertically elongated type with the exhaust port located at the top and the intake port located at the bottom;
The cooling body has cooling fins,
The dehumidification device according to claim (1), wherein a drainage channel is formed in the casing below the cooling fins.