JPH07219650A - Constant temperature / constant humidity controller - Google Patents

Abstract

PURPOSE:To produce a constant-temperature and constant-humidity atmosphere in a wide closed chamber without forcing air to flow back in the closed room. CONSTITUTION:A far infrared ray heater 3 which irradiates the inside of the closed chamber 23 with far infrared rays and a holding member 4 for a body to be stored are arranged. A water tank 5 is arranged in the closed chamber 23 and below the arrangement position of the holding member 4, and a shutter member 6 which partitions the inside of the closed chamber 23 into a water tank chamber 27 and a stored body chamber 26 and adjusts the opening/closure extent to control the vaporization amount of water from the water tank 5 is arranged between the water tank 5 and holding member 4. At least the internal wall 24 which forms the stored body chamber 26 and the shutter member 26 in the closed chamber 23 are formed of far infrared ray reflecting members.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a constant temperature / constant humidity control device, and more particularly, it controls a constant temperature / constant humidity in a closed room without forcibly recirculating air to apply it to furniture furniture or the like. The present invention relates to a constant temperature / constant humidity control device which can be used as a device for drying and solidifying the formed paint or as a device for culturing microorganisms such as mold.

[0002]

2. Description of the Related Art When a coating film such as lacquer or cashew paint applied to furniture furniture is dried and solidified, the furniture will not crack if it is simply kept in a predetermined temperature atmosphere. Since cracking occurs, it is usually performed while applying a predetermined humidity. As such a drying and solidifying means, a room in a cool and dark place such as a basement is conventionally used, which is called "lacquer bath". Further, in recent years, an apparatus has been used in which an electric heater for controlling an ambient temperature using a nichrome wire as a heat source is provided in a closed chamber and a water tank is provided below the closed chamber.

[0003]

[Problems to be Solved by the Invention] However, in the case of "lacquer bath," it is difficult to keep the indoor environment constant because of natural temperature and humidity, and the quality of the dried and solidified coating film is unstable. was there. There is also a problem that it takes a considerable time to dry.

Further, in the case of an apparatus using an electric heater, the drying time is short, but simply arranging a nichrome wire causes a high temperature only in the vicinity of the heat source, and the ambient temperature in the closed chamber cannot be kept constant. Generally, a fan is provided to forcibly recirculate the air in the closed chamber. Therefore, when the air is forcedly refluxed, only the surface of the coating film is dried, and the inside of the coating film is not dried, so that the film may be cracked or cracked. Moreover, there is a limit to the volume of the closed room that can be kept at a constant temperature even if it is forcedly refluxed, and it is impossible to control a large closed room space that can accommodate furniture coated with lacquer, for example, to a constant temperature. Met. Furthermore, in the case of an electric heater using Nichrome wire,
It is difficult to evaporate the water in the water tank only by setting an appropriate temperature atmosphere for drying and solidifying.Therefore, a heat source for evaporating the water in the water tank must be provided separately from the heat source for temperature control. It was necessary to dispose near the water tank, and the structure was complicated.

On the other hand, an apparatus for culturing microorganisms such as mold and fungi also requires a predetermined temperature and humidity environment, and like the above-mentioned apparatus for drying and solidifying a coating film such as lacquer, an electric heater, A culture device provided with a water tank, a fan, etc. is used. However, in order to maintain a constant temperature, it is essential to use a fan, and in order to prevent the scattering of microorganisms during culturing, the culture container inoculated with mold must be covered with a petri dish or the like. There wasn't.

The present invention has been made in order to solve the above problems, and has a simple structure and can make a large closed chamber a constant temperature and constant humidity atmosphere without forcibly recirculating the air in the closed chamber. Can be used as a device for drying and solidifying the coating film such as lacquer that can form a stable coating film without cracks and cracks, and can also be used for the cultivation of microorganisms such as mold that can be cultured while preventing the scattering of microorganisms. It is an object of the present invention to provide a constant temperature / constant humidity control device that can also be used as a culture device.

[0007]

In order to achieve the above object, the constant temperature / constant humidity control device of the present invention exposes an object to be contained in a closed chamber to a substantially constant temperature and humidity atmosphere for a predetermined time. In the constant temperature / constant humidity control device for controlling, a far-infrared heater that irradiates far-infrared rays into a closed chamber, a holding member for an object to be contained, and a closed chamber are provided below the holding member. A shutter member that is disposed between the water tank and the holding member, divides the closed chamber into a water tank chamber and a storage chamber, and controls the degree of opening and closing to control the evaporation amount of water from the water tank. And at least the inner wall of the closed chamber forming the contained chamber and the shutter member are made of far infrared ray reflecting members.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail below with reference to the embodiments shown in the drawings. In the figure, reference numeral 1 denotes a constant temperature / constant humidity control device of the present embodiment, which includes a frame 2, a far infrared heater 3, a holding member 4 for a contained object, a water tank 5, and a shutter member 6.
Is configured.

The frame 2 has a box-shaped main body 21 and the main body 21.
It is configured to have a double door 22 that opens and closes the front opening of the front door. By closing the door 22, a closed chamber 23 can be formed inside. On the door 22,
As shown in FIG. 1, if necessary, a viewing window 22 for internal observation is provided.
a can be provided.

The inner wall 24 of the frame 2 forming the closed chamber 23
Is made up of a metal plate made of an aluminum plate, a stainless steel plate, or the like, which is a far-infrared reflecting member, and is tightly packed so as to diffuse far-infrared rays. The side wall, the ceiling surface, and the bottom surface of the inner wall 24 may all be made of an aluminum plate or the like, but at least the surface that is divided by the shutter member 6 to be described below and that forms the contained chamber 26 together with the shutter member 6 The far-infrared reflecting member is used. Further, in this embodiment, the outer wall 25 is made of wood. This is because if the outer wall 25 is also made of an aluminum plate or the like, heat is applied to the surface of the outer wall 25, which causes inconvenience in handling. However, it goes without saying that the inner wall 24 and the outer wall 25 may not be separated from each other by a heat-resistant means provided by the operator, and only an aluminum plate or a stainless steel plate having a predetermined thickness may be used. The point is that the inner wall, that is, the surface that forms the closed chamber 23 may be formed of a far-infrared reflecting member. Further, in this embodiment, the door 22 is of a double-door type, but it may be of a sliding door type.

The far-infrared heater 3 is located at a position substantially opposite to the holding member 4 for holding an object, and in this embodiment,
Four rod-shaped members are arranged on the ceiling surface 24a of the inner wall 24 forming the closed chamber 23. However, since the far-infrared heater 3 is provided with a far-infrared reflecting member that diffusely reflects far-infrared rays, the far-infrared heater 3 does not necessarily have to be provided at a position substantially facing the contained object. In addition, the far infrared heater 3
Needless to say, the shape, strength, the number of arrangements, and the like can be appropriately selected according to the type of the contained object. Reference numeral 31 is a housing for holding the far infrared heater 3, and an aluminum reflecting plate is provided on the back side of the position where the far infrared heater 3 is disposed.

The holding member 4 is made of a metal net material in this embodiment, and is arranged in the closed chamber 23 above the shutter member 6 which will be described later in the form of a shelf in a height-adjustable manner. ing. The holding member 4 may be any member as long as it can hold an object for a predetermined time, and a net material may be arranged at a predetermined position as in the present embodiment. Figure 5
Alternatively, as shown in FIG. In the case of the rotary type, it goes without saying that a fixing mechanism for fixing the contained object to the holding member 4 is provided so as not to drop even if the contained object rotates. In the figure, 41 is a rotating shaft for rotating the holding member 4, and 42 is the rotating shaft 4.
1 is a drive unit box that houses a gear that rotates 1 and a motor. Further, the holding member may be one that is substantially disk-shaped in plan view and rotates horizontally, or a simple holder that can hold the object to be held when the object is small. Further, it is not limited to a net material, but may be a saw-toothed plate-like member provided with a plurality of plate members at predetermined intervals as long as the irradiation of far-infrared rays to the water tank 5 can be ensured. Further, as long as it has a predetermined heat resistant temperature, it is not necessarily required to be made of aluminum or the like that easily reflects far infrared rays.

Inside the closed chamber 23, below the position where the holding member 4 is provided, in this embodiment, the water tank 5 having an open upper surface is provided on the bottom surface 24b of the inner wall 24 forming the closed chamber 23. . The water tank 5 having the largest possible area is effective for humidity control. However, for the convenience of handling such as water exchange and replenishment, a plurality of smaller ones than the area of the bottom surface 24b may be provided. In the present embodiment, the two of which are approximately half the area of the bottom surface 24b. Water tanks 51 and 52 are provided.

The shutter member 6 is arranged so as to divide the inside of the closed chamber 23 into the contained chamber 26 and the water tank chamber 27, and the accommodation chamber 2 from the water tank 5 is adjusted by adjusting the degree of opening and closing.
It controls the amount of evaporation of water that moves into the inside of the container 6. The shutter member 6 is configured by disposing a plurality of strip-shaped shutter plates 61 each having a length slightly shorter than the width of the side surface of the closed chamber 23 (inner wall 24) and having a predetermined width. As shown in FIGS. 2 to 5, each shutter plate 61 has both ends in the longitudinal direction with the shutter shaft 62 interposed therebetween.
3 is supported at an appropriate position on the frame body 2 and is rotatably provided in a range from substantially horizontal to substantially vertical, and the evaporation amount of water is controlled by adjusting the rotation angle. However, the shutter plate 61 may have substantially the same length as the length of the bottom surface 24b of the inner wall 24 in the longitudinal direction, and may be arranged side by side in the lateral direction substantially orthogonal to that shown in the drawing.

The means for rotating the shutter plate 61 is not particularly limited, but a gear mechanism such as a rack and pinion (not shown) is provided in the case 63,
The shutter shaft 62 can be rotated by the rotation of the pinion. Various control motors such as a stepping motor can be used as the means for driving the gear mechanism. The shutter member 6 is made of a metal plate such as an aluminum plate or a stainless steel plate in order to diffusely reflect far infrared rays.

Further, the shutter member 6 may be of any type as long as it can divide the inside of the closed chamber 23 into the contained chamber 26 and the water tank chamber 27 with this as a boundary.
The strip-shaped shutter plate 61 of this embodiment shown in FIGS.
It is not limited to. For example, it may be divided into the accommodation room 26 and the water tank 27 by opening and closing an accordion-shaped product. However, if a plurality of strip-shaped shutter plates 61 are provided as in the present embodiment, the space required for the pivoting operation is small, so that the sealed chamber 23 can be effectively used. Further, by operating the plurality of shutter plates 61, the evaporation distribution of water can be made more uniform, and fine control can be performed.

In the figure, 8 is a caster and 9 is a lamp for illumination. 10 and 11 are holes for electric wiring,
If necessary depending on the type of the housed object, it can function as an intake part and an exhaust part. Although not shown, a temperature sensor and a humidity sensor for confirming temperature and humidity are provided in the closed chamber 23, and a temperature controller with a timer (not shown) and a humidity controller are provided outside the frame body 2. Set up. The temperature controller with a timer adjusts the temperature by intermittently controlling the operation of the far infrared heater 3 while comparing with the signal from the temperature sensor. It has a mechanism that allows the number of operating far infrared heaters 3 to be set. The humidity controller controls the humidity by adjusting the rotation angle (opening / closing degree) of the shutter plate 61 forming the shutter member 6 while comparing with the signal from the humidity sensor.

The constant temperature / constant humidity control device 1 of this embodiment is used as follows. For example, if the object to be contained is a furniture item coated with lacquer, this furniture item is used as the door 22 of the frame body 2.
Is opened and placed on the holding member 4 in the closed chamber 23. Then, the far infrared heater 3 is operated. At this time, a temperature controller with a timer sets a temperature suitable for drying and solidifying the lacquer. The temperature is set by controlling the far infrared heater 3 with a temperature sensor as described above. Similarly, the humidity controller sets the humidity suitable for drying and solidifying the lacquer. By setting the humidity, the rotation angle (opening / closing degree) of the shutter plate 61 of the shutter member 6 is adjusted via a stepping motor or the like.

Since the light of the far infrared heater 3 is diffusely reflected in the room 26 to be housed, the ambient temperature in the closed room 23 becomes constant even if the air is not forcedly recirculated. Further, since the shutter plate 61 is opened at a predetermined angle, far infrared rays directly act on the water in the water tank 5 from this open portion,
Evaporate the water. The evaporated water is evenly supplied to the accommodation target room 26 through the open portion of the shutter 61. Therefore, the atmospheric humidity in the closed chamber 23 is also constant.

As a result, the lacquer applied to the furniture furniture is
Quality is stable because it is dried under appropriate and constant temperature and humidity.

When the constant temperature / constant humidity control device 1 of this embodiment is used as a culture device, a container inoculated with microorganisms such as mold is placed on the holding member 4 as a contained object, and a timer is used. The temperature and humidity are controlled by the temperature controller and humidity controller. Since the air is not forcibly refluxed, molds and the like do not scatter even if the container is not covered with a petri dish or the like, and culture can be easily performed.

Here, FIG. 6 shows a change in humidity in the closed chamber 23 of the constant temperature / constant humidity controller 1 of this embodiment. The frame 2 has outer dimensions of 1600 mm in width and 1620 mm in length,
Far infrared heater 3 (100V,
650W) was arranged in four. Further, the inner wall of the closed chamber 23 is entirely made of an aluminum plate, and the water tank 5 is made of a stainless steel plate. The shutter member 6 is made of an aluminum plate and is 95
The one provided with 16 shutter plates 61 of mm × 550 mm was used.

As is apparent from FIG. 6, for example, the temperature 3
When the temperature is set to 0 ° C. and the humidity is set to 50%, the temperature controller with the timer and the humidity controller are operated to operate two far infrared heaters 3, and the rotation angle of the shutter plate 61 is set to 90 degrees via the stepping motor. . It can be seen that, after 30 minutes from the switch-on of the far-infrared heater 3, the humidity is close to that, and this is kept substantially constant. The temperature was kept constant at about 30 ° C. 3 minutes after the switch was turned on.

[0024]

According to the constant temperature / constant humidity controller of the present invention, since the far infrared heater is used, the temperature / humidity in the closed chamber can be kept constant without forcedly circulating air. . Therefore, the structure is simple. In addition, since it is not necessary to forcibly recirculate air, when furniture furniture etc. are used as an object to be contained, a coating film such as lacquer applied on the surface should be formed stably without cracks or cracks. You can Furthermore, since it is not necessary to forcibly recirculate air, it can be used as a culture device for microorganisms such as mold. Further, since far infrared rays are used as a heat source, it is possible to control the temperature and humidity inside the sealed chamber to a substantially constant level regardless of the size of the sealed chamber.

[Brief description of drawings]

FIG. 1 is a front view showing an appearance of a constant temperature / constant humidity control device according to an embodiment of the present invention.

FIG. 2 is a front view showing the internal structure of the constant temperature / constant humidity control device of the embodiment.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a front view showing an internal structure of a constant temperature / constant humidity control device of the embodiment using a holding member of another aspect.

5 is a sectional view taken along line BB of FIG.

FIG. 6 is a diagram showing changes in humidity in a closed chamber of the constant temperature / constant humidity control device of the embodiment.

[Explanation of symbols]

 1 Constant Temperature / Constant Humidity Control Device 2 Frame 22 Main Body 23 Sealed Room 24 Inner Wall 25 Outer Wall 26 Contained Room 27 Water Tank Room 3 Far Infrared Heater 4 Holding Member 5 Water Tank 6 Shutter Member 61 Shutter Plate

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display area F26B 21/10 A

Claims (4)

[Claims] 1. A constant temperature for exposing an object to be housed in a closed chamber to a substantially constant temperature and humidity atmosphere for a predetermined time.
In the constant humidity control device, a far-infrared heater that irradiates far-infrared rays into a closed chamber, a holding member for an object to be stored, a water tank provided below the position where the holding member is placed in the closed chamber, and the water tank. And a holding member, the closed chamber is divided into a water tank chamber and a contained object chamber, and a shutter member for controlling the amount of water evaporated from the water tank by adjusting the degree of opening and closing is provided. A constant temperature / constant humidity control device, characterized in that at least the inner wall of the closed chamber forming the contained chamber and the shutter member are made of far-infrared reflecting members. 2. The constant temperature / constant humidity control device according to claim 1, wherein the outer wall of the frame forming the closed chamber is made of wood. 3. The constant temperature / constant humidity control device according to claim 1, wherein the holding member for the contained object is rotatable while holding the contained object. 4. The shutter member is formed of a plurality of strip-shaped shutter plates, and each shutter plate is rotatably provided in a range from substantially horizontal to substantially vertical. Constant temperature / constant humidity controller.