JPH0221173A - Constant temperature bath - Google Patents

Abstract

PURPOSE:To prevent the fluctuation of the temperature of hot air in a constant temperature bath from being caused, by a method wherein a temperature distribution control plate composed of two steel sheets which have a plurality of through holes arranged regularly on their surfaces and which are superposed on each other in a relatively deviable manner is disposed in the flow path of hot air. CONSTITUTION:Hot air 14 whose temperature is controlled by a heater 4 is converted into hot air 8 having a certain preset temperature by a stirring fan 3, and its flow direction is controlled by an inclined plate 5 for directional control so that the hot air passes through a temperature distribution control plate 20. The temperature distribution control plate 20 consisting of two steel sheets 18 and 19 allows their relative position to change so as to vary the overlapping degree of their respective through holes 18a and 19a, thereby adjusting the quantity of air flowing into a bath. The hot air which has passed through the temperature distribution control plate 20 is turned into hot air 22 and 23 and the like with the desired air quantity and, after passing through a lower porous steel plate 7, is converted into the hot air 14 to be cycled again. According to this constitution, the fluctuation of a temperature can be prevented, and increase or decrease in the quantity of air directed to every part of the interior of a constant temperature bath can be easily changed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a constant temperature chamber, and particularly to a temperature distribution control board thereof. [Prior Art] In the conventional constant temperature chamber shown in FIGS. A stirring electric motor 2 and a stirring fan 3 are installed inside the tank body 1.

Hot air 14 whose temperature is controlled by a heater 4 for controlling a certain set temperature is turned into hot air 8 having a certain set temperature by a stirring fan 3, and a certain set temperature whose direction is controlled by a direction control inclined plate 5. The hot air 9 that has passed through the upper perforated steel plate 6 becomes the hot air 10 after passing through the upper perforated steel plate, the hot air 11 after passing through the upper perforated steel plate, and the hot air after passing through the upper perforated steel plate in FIG. Flowing in the direction of the wind 15, the left thermostatic chamber interior 12 and the right thermostatic chamber interior 13 in FIG. The air also passes through the lower perforated steel plate 7 via the front constant temperature chamber interior 16 and rear constant temperature chamber interior 17 in FIG. 5, and circulates again as temperature-controlled warm air 14.

[Problem to be solved by the invention]

Most of the hot air having a certain set temperature that has passed through the upper perforated steel plate 6 becomes the hot air 11 after passing through the upper perforated steel plate and the hot air 15 after passing through the upper perforated steel plate in FIG. Therefore,
Warm air with a certain set temperature circulates within the thermostatic chamber with variations, and is distributed between the left thermostatic chamber interior 12, the right thermostatic chamber interior 13, the front thermostatic chamber interior 16, and the rear thermostatic chamber interior 1.
There is a drawback that temperature variations occur between the two.

An object of the present invention is to provide a constant temperature bath that solves the above problems.

[Differences between the invention and the prior art]

The present invention differs from the above-mentioned conventional perforated steel plate in that the empty area of the overlapping holes can be varied to easily control the increase or decrease of the air volume.

[Means to solve the problem]

In order to achieve the above object, the present invention has a stirring fan and a tilted plate for direction control in the tank, and is a constant temperature tank in which a volume of hot air having a certain set temperature circulates inside the tank. A temperature distribution control plate made by stacking two steel plates with regularly arranged through holes so that they can be moved relative to each other is installed in a hot air flow path.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view showing one embodiment of the present invention, and FIG.
FIG. 3 is a front view showing the temperature distribution control plate according to the present invention.

In the figure, 1 is a thermostatic chamber main body, 2 is a stirring electric motor that drives a stirring fan 3, 4 is a heater, 5 is an inclined plate for direction control, and 7 is a lower perforated steel plate.

As shown in FIG. 3, the present invention has a plurality of through holes 18
a, two steel plates 18.19 in which 19a are arranged regularly
are combined so as to be relatively displaceable in the directions of arrows 21a and 21b to form a temperature distribution control plate 20, and the temperature distribution control plate 20 is installed after the direction control inclined plate 5.

In the embodiment, hot air 14 whose temperature is controlled by a heater 4 that controls a certain set temperature is turned into hot air 8 having a certain set temperature by the stirring fan 3 to a certain set temperature whose direction is controlled by the direction control inclined plate 5. The warm air 9 having the temperature passes through the temperature distribution control board 20. In this case, the temperature distribution control plate 20 changes the relative position of the two steel plates 18 and 19 to
The degree of overlap between holes 18a and 19a is adjusted to change the cross-sectional area of overlapping holes 18a and 19a. This temperature distribution control board 20 arbitrarily adjusts the amount of air flowing into the tank. The hot air that has passed through the temperature distribution control board 20 becomes a hot air 22 with an arbitrary air volume, a hot air 23 with an arbitrary air volume, and a warm air 24 with an arbitrary air volume in FIG. Inside the constant temperature chamber 13, and inside the front constant temperature chamber 16 in FIG. It passes through the lower perforated steel plate 7 via the rear constant temperature oven interior 17, becomes warm air 14 with a temperature-controlled air volume, and circulates again.

[Effects of the Invention] As explained above, the present invention can apply an arbitrary amount of air to the inside of the thermostatic oven using the temperature distribution control board, prevent temperature variations, and can control the increase or decrease of the air volume to each part inside the thermostatic oven. It has an effect that can be easily changed.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing one embodiment of the present invention, and FIG.
3 is a front view showing a temperature distribution control plate according to the present invention, FIG. 4 is a sectional view showing a conventional example, and FIG. 5 is a sectional view taken along line AA' in FIG. 4. FIG. 18, 19...Rope plates 18a, 19a...
・Through hole 20...Temperature distribution control board Patent applicant Kyushu NEC Co., Ltd. Figure 2

Claims (1)

[Claims] (1) In a constant temperature bath that has a stirring fan and a tilted plate for direction control inside the tank, and a volume of warm air with a certain set temperature circulates inside the tank, multiple through holes are regularly arranged on the plate surface. I did 2
A constant temperature bath characterized in that a temperature distribution control plate made of two steel plates stacked so as to be relatively displaceable is installed in a hot air flow path.