JPH0734340Y2 - Hygrometer - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hygrometer, and more particularly to a hygrometer capable of displaying the humidity inside and outside a dry store or a clean room.

[0002]

2. Description of the Related Art Generally, a drying cabinet is kept at a predetermined humidity to prevent moisture and mildew.
It is used to store a camera and the like, and the clean room and the like are also kept at a predetermined humidity, and the humidity is constantly monitored by a hygrometer.

[0003]

In such a conventional drying cabinet or the like, only the humidity inside the cabinet is displayed, and at the same time, the humidity outside the cabinet is not known. However, if not only the inside of the refrigerator but also the humidity outside the refrigerator at that time can be detected at the same time, it is possible to know not only the state of the inside of the refrigerator but also the operating state of the drying equipment such as a desiccant and the degree of tightness of the dryer. It is highly desirable for improving the sex and the like.

[0004]

The hygrometer of the present invention includes a case in which a case inside is communicated with the inside of the case and a case outside of the case communicated with the outside of the case are airtightly separated from each other. It is characterized by comprising a humidity sensor arranged in the case portion, and a humidity display mechanism arranged in the outer case portion for displaying the humidity inside and outside the refrigerator according to the output of the humidity sensor.

[0005]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

1 and 2 show an embodiment in which the present invention is applied to a drying cabinet. In this embodiment, a sealed case 2 attached to an outer wall 1 of the drying cabinet and the inside of the sealed case 2 are projected into the cabinet. A partition plate 3 that airtightly separates the inside case 2a and the outside case 2b protruding outside the case, and the case 2 described above.
Vents 4a and 4b formed in a and 2b respectively, a transparent portion 5 formed in the outside case 2b, and inside humidity sensors 6 arranged in the inside case 2a and the outside case 2b, respectively. Outside humidity sensor 7 and partition plate 3
Through a humidity scale 8 formed on the outside surface of the refrigerator, and a rotary shaft 9 that is arranged in the outside case 2b and that extends through the partition plate 3 in an airtight manner by the output of the inside humidity sensor 6. In-compartment humidity pointer 10 rotated on the humidity scale 8
And the outside humidity indicator 12 which is also arranged in the outside case 2b and is rotated on the humidity scale 8 via the rotary shaft 11 by the output from the outside humidity sensor 7 to constitute a hygrometer. Excuse me.

Reference numeral 13 is a fitting for fixing the case 2 to the outer wall 1 of the drying cabinet.

The transparent portion 5 of the outer case 2b does not have to be formed on the entire outer case 2b, but may be formed on at least the portion corresponding to the humidity scale 8 and the pointers 10 and 12 indicating the humidity scale 8.

The humidity sensors 6 and 7 are conventionally known ones each having an output shaft that expands and contracts according to humidity and rotates against spring force.
The humidity pointers 10 and 12 can be omitted if 7 is a liquid crystal drive unit that produces an output according to humidity and the humidity scale 8 is a liquid crystal display unit.

In another embodiment of the present invention, temperature sensors (not shown) for detecting the inside and outside temperatures of the inside and outside cases 2a and 2b, respectively, are arranged, and as shown in FIG. A temperature scale 14 is provided on the outer surface of the compartment plate 3, and temperature indicators 15 and 16 inside and outside the compartment which are rotated on the temperature scale 14 are provided.

According to this embodiment, not only the humidity inside and outside the refrigerator but also the temperature can be detected at the same time, which is extremely convenient.

In each of the above embodiments, the present invention is applied to a drying cabinet, but it goes without saying that the present invention can be similarly applied to a clean room, a constant humidity tank, a refrigerator and the like.

[0013]

EFFECT OF THE INVENTION Since the hygrometer of the present invention is constructed as described above, the humidity inside and outside the refrigerator is simultaneously displayed on the same display portion,
There is a great advantage that the difference in humidity inside and outside the refrigerator can be detected very easily and quickly without time difference, or the humidity and temperature inside and outside the refrigerator can be simultaneously displayed on the same display portion.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a hygrometer of the present invention.

FIG. 2 is a front view of the hygrometer of the present invention.

FIG. 3 is a front view showing another embodiment of the hygrometer of the present invention.

[Explanation of symbols]

 1 Drying Outer Wall 2 Closed Case 2a Inside Inner Case 2b Inside Outer Case 3 Section Plate 4a Vent 4b Vent 5 Transparent Portion 6 Humidity Sensor 7 Outside Humidity Sensor 8 Humidity Scale 9 Rotating Shaft 10 Inside Humidity Indicator 11 Rotating shaft 12 Outside humidity pointer 13 Fixture 14 Temperature scale 15 Inside temperature pointer 16 Outside temperature pointer

Claims (4)

[Scope of utility model registration request] 1. A case, which is airtightly divided into a case inside case part communicated with the case inside and a case outside case part communicated with the case outside, and a humidity sensor arranged in the two case parts. A hygrometer comprising a humidity display mechanism which is disposed in the outside case portion and which displays the humidity inside and outside the refrigerator according to the output of the humidity sensor. 2. The hygrometer according to claim 1, wherein the humidity display mechanism is a humidity scale and a pointer driven by the humidity sensor. 3. The hygrometer according to claim 1, wherein the humidity display mechanism is a liquid crystal display unit that is driven by the output of the humidity sensor to display humidity. 4. A temperature sensor arranged in the two case portions, and a temperature display mechanism arranged in the outer case portion and displaying the temperature inside and outside the refrigerator according to the output of the temperature sensor, respectively. The hygrometer according to claim 1, further comprising: