JPH0590225U - Constant temperature and humidity - Google Patents

Abstract

(57) [Summary] [Purpose] Prevents the entry of water droplets generated inside the door. [Structure] On the front of the main body of the constant temperature and humidity chamber, a hinge 13.1.
Opening and closing door 17 that can be opened and closed with 5 as a fulcrum
In the lower part of 7, a door receiving portion for receiving condensed water droplets is provided on the back surface of the opening / closing door 17, and the bottom surface of the door receiving portion is "closed" at all times and "opened" when the opening / closing door 17 is fully closed. While the drain valve is provided, a main body receiving portion having a drain port for receiving water droplets from the door receiving portion is provided on the main body side of the constant temperature and humidity chamber 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a thermo-hygrostat for keeping the inside of a tank at high temperature and high humidity.

[0002]

[Prior Art]

 Conventional constant temperature and humidity chambers used for tests and experiments have an opening / closing door on the front side of the main body, and a circulation fan, heating heater, humidifying heater, evaporator (cooling, dehumidifying) in the tank. Etc. are provided, and the desired high temperature and high humidity can be obtained by controlling their operation.

[0003]

[Problems to be solved by the device]

 As described above, when the temperature and humidity inside the tank of the thermo-hygrostat are set to high temperature and high humidity, the atmospheric temperature in the tank starts to rise rapidly, but the rise of the wall temperature in the tank is delayed. For this reason, for example, in winter when the outside temperature is low, dew condensation is likely to occur from the place where the whole body is cold to the back side of the door, and the dew condensation grows into water droplets, which are There was a risk of intrusion.

In particular, the lower part of the opening / closing door is a control part for controlling the circulation fan, the heating heater, the humidifying heater and the like, which is a place where water is disliked, but there is a problem that water infiltration due to dew condensation occurs. there were. Therefore, in some cases, stable operation cannot be obtained due to the influence of water and reliability is lacking.

Therefore, an object of the present invention is to provide a thermo-hygrostat that prevents water from entering due to dew condensation that occurs inside the opening / closing door and prevents water droplets from falling outside even when the opening / closing door is opened. .

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides an opening / closing door that can be opened and closed with a hinge as a fulcrum on the front surface of the main body of a constant temperature and humidity chamber, and a door for receiving condensed water droplets on the back surface of the opening / closing door under the opening / closing door. In addition to providing the receiving part, a drain valve is provided on the bottom surface of the door receiving part that is normally "closed" and "opens" when the open / close door is fully closed. There is provided a main body receiving portion having a drain port for receiving water drops from the portion.

[0007]

[Action]

 According to such a thermo-hygrostat, dew condensation occurs on the back side of the open / close door, and when the dew condensation grows into water droplets and flows downward, the water droplets that have flowed down are received by the door receiving portion, and then the drain valve It flows to the main body receiving part through and is drained to the outside from the drain port. Therefore, water does not enter the main body.

On the other hand, the drain valve of the door receiving portion is “closed” when the opening / closing door is opened, so that there is no possibility that water will drip outside even if the opening / closing door is opened.

[0009]

【Example】

 Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings of FIGS.

In the figure, reference numeral 1 denotes a thermo-hygrostat main body, and a circulation fan 5, a heating heater 7, a humidifying heater 9, and an evaporator 11 (cooling and dehumidifying) are provided in a tank 3. . The front of the tank 3 is closed by an opening / closing door 17 that can be opened and closed with the upper and lower hinges 13 and 15 as fulcrums. Between the opening / closing door 17 and the constant temperature and humidity chamber body 1, the front opening edge of the tank 3 is opened. An airtight state is ensured by a seal member 19 which is provided along with and is in elastic contact with the rear panel 17a of the opening / closing door 17.

Below the opening / closing door 17 is a control box 21 projecting forward from the constant temperature and humidity chamber body 1 along the width direction. A control unit 23 for controlling the operation of the circulation fan 5, the heating heater 7, the humidification heater 9 and the like is provided in the control box 21, and the front panel unit 25 serves as an operation switch unit of the control unit 23.

As described above, the opening / closing door 17 can be opened / closed by using the upper and lower hinges 13 and 15 as fulcrums, and the door receiving portion 27 is provided on the lower portion on the back surface side.

As shown in FIG. 4, the bottom surface of the door receiving portion 27 has a taper shape that descends and inclines outward from the hinge 15 side, and has a U-shaped cross section that is open at the top. It is arranged below the rear panel 17a of the door 17 along the width direction. A drain valve 29 is provided on the bottom surface of the door receiving portion 27 on the descending slope side.

In the drain valve 29, a valve body 35 is provided in a drain cylinder 33 having a notch 31 toward the main body side, and the valve body 35 is provided with a packing 39 at an opening edge of the drain cylinder 33 by a spring 37. It is in constant contact with the player via the to ensure a "closed" state. The spring 37 is supported by the support member 41 via the valve element 35. Therefore, the “open” state is obtained by the valve body 35 which is compressed and raised by the tip of the valve body 35 riding on the cam surface 45 of the cam body 43 when the opening / closing door 17 is fully closed.

The cam body 43 is provided in a main body receiving portion 47 set along the width direction on the upper surface of the control box 21 on the main body 1 side of the constant temperature and humidity chamber.

The main body receiving portion 47 has a U-shaped cross-section with an open upper side, and a drain port 51 communicating with a drain tank (not shown) via a drain hose 49 is provided on one side. Has been.

In FIG. 5, reference numeral 53 denotes a handle of the opening / closing door 17.

According to the constant temperature and humidity chamber configured as described above, the control unit 23 manages and controls the circulation fan 5, the heating heater 7, the humidifying heater 9, and the evaporator 11 to obtain a desired high temperature and high humidity. Be done.

On the other hand, in the initial stage of operation, the temperature difference between the opening / closing door 17 and the atmosphere in the tank 3 causes dew condensation on the rear panel 17a of the opening / closing door 17, which grows into water droplets and drops downward. The water drops flow to the door receiving portion 27, the drain valve 29, and the main body receiving portion 47, and are drained to the outside from the drain port 51. Therefore, water does not enter the main body and stable operation can be obtained for a long period of time.

Further, since the drain valve 29 is closed when the opening / closing door 17 is opened, there is no risk that water droplets will drip outside even if the opening / closing door 17 is opened.

[0021]

[Effect of the device]

 As described above, according to the constant temperature and humidity chamber of the present invention, the door receiving portion, the drain valve, and the main body receiving portion can surely prevent water droplets generated on the back surface of the opening / closing door from entering. Therefore, stable operation can be obtained over a long period of time.

Further, when the opening / closing door is opened, it is possible to prevent water droplets from dripping outside by the drain valve.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of an open / close door of a thermo-hygrostat according to the present invention.

FIG. 2 is an operation explanatory view of the drain valve.

FIG. 3 is an exploded perspective view of a drain valve.

FIG. 4 is an explanatory view of the opening / closing door as viewed from the inside.

[Fig. 5] Side view of the thermo-hygrostat

[Explanation of symbols]

 1 Main body of constant temperature and humidity chamber 13 ・ 15 Hinge 17 Open / close door 29 Drainage passage 27 Door receiving part 47 Main body receiving part

Claims (1)

[Scope of utility model registration request] 1. An opening / closing door that can be opened and closed with a hinge as a fulcrum is provided on the front surface of the main body of the thermostat / humidifier, and a door receiving portion for receiving condensed water droplets is provided on the back surface of the opening / closing door at the bottom of the opening / closing door. On the bottom of the receiving part, a drain valve that is normally "closed" and "open" when the opening / closing door is fully closed is provided, while the main body side of the constant temperature and humidity chamber receives a water drop from the door receiving part. A thermo-hygrostat, which is provided with a main body receiving portion.