JP2547970B2 - Constant temperature bath device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a constant temperature bath device having a temperature gradient.

[0002]

2. Description of the Related Art Conventionally, a constant temperature bath apparatus 1 of this type having a temperature gradient has one side surface which can be opened and closed, and a peripheral side surface 2 which is sealed with a heat insulating material as shown in FIG. A bath 25 is formed, a fan 6 and a cooler 7 having a first temperature control means are provided below the bath 3, and ventilation paths 11 are provided on both sides of the bath to traverse the bath 3 with a heat insulating plate 12. And a plurality of chambers 24 that are thermally insulated by using a heat insulating material on the other side surface are formed, and the inlet opening 13 and the outlet that communicate with the ventilation passage 11 are formed on both side surfaces of each chamber 24. A heater 5 having a second temperature control means (not shown) and a suction fan 15 are provided at the inlet opening, and a cooler 7 temperature-controlled by the first temperature control means and a fan attached thereto are provided. 6 and the temperature set in each chamber 24 by Each chamber causes a less cold air cooled to below the minimum set temperature is forced to circulate
The heater 24 is heated by the second temperature control means so that the desired temperature is compensated by the second temperature control means, and each chamber 24 is independently set to its set temperature while being ventilated by the suction fan 15. Things are used. Instead of providing the suction fan 15 at the entrance opening, an exhaust fan or both of them at the exit opening is also used. In addition to the above, as shown in FIG. 5, each chamber 24 'is surrounded and sealed by a heat insulating material.
Ventilation ducts 26 communicating with the cooler 7 are provided with a plurality of heat-insulated chambers 24 'which are equipped with temperature control means inside the tank so as to form a plurality of heat-insulated chambers 24'. , 27 are provided to circulate the air cooled by the cooler 7, and the heater 5 is operated by the second temperature control means to heat the chamber 24 '.
It is also used that the temperature inside is independently desired.

In such a case, the constant temperature bath device 1
Since the total volume is larger than the effective internal volume of the chamber, space can not be saved, strong circulating air flows through each chamber 24, 24 ', and the plants, animals, microorganisms and culture liquids under test are dehumidified. In addition, there is a problem that the DUT causes cross-contamination by the circulating air and adversely affects the test. As a measure for solving this problem, as shown in FIG. 6, a tank 25 is formed on the peripheral side surface 2 by using a heat insulating material, and a plurality of pillar members 16 having good thermal conductivity are provided in the tank 3. A plate 1 having a plurality of thermal conductivities on the column members 16 provided with
2'is supported to partition the inside of the tank 3 across, which is the inside of the tank 3
When installed on the column member, a heater 5 is provided above the column member 16 and a cooler 7 is provided below the column member 16 so as to form a sealed chamber 34, and the upper portion of the column member 16 is heated. Then, the lower part is cooled and the temperature difference between the upper part and the lower part of the strut member 16 is used to generate a temperature difference between the chambers 34 by the heat conduction of the strut member 16 in a windless state. 4 to 6, reference numeral 18 indicates a refrigerating compressor.

[0004]

A constant temperature bath device in which a column member having good thermal conductivity is provided in the constant temperature bath to divide the interior of the bath into a plurality of layers to form a chamber as shown in FIG. There is a problem that they cannot be freely controlled independently during the test.

Therefore, an object of the present invention is to solve the above-mentioned problems of the conventional thermostatic bath device, save space, and prevent dehumidification in each chamber provided inside the bath of the thermostatic bath device. It is an object of the present invention to provide a thermostatic chamber apparatus that can independently and freely control the temperature of each chamber without causing biological cross-contamination and adversely affecting the test.

[0006]

In order to achieve the above-mentioned object, the present invention provides a tank in which a peripheral surface is sealed with a heat insulating material. In a thermostatic chamber apparatus equipped with a cooler provided with a fan for stirring air inside and a first temperature control means, a front side surface is made of a heat insulating material and another side surface is made of a heat conductive material. A plurality of chambers are mounted in the tank with the front side surface positioned on one side surface of the tank, and a gap is formed between these chambers and other side surfaces to form an air jacket in the tank.
Each of the chambers has a second temperature control means. According to the invention of claim 2, in the invention of claim 1, the temperature of each chamber can be set to a desired one, the temperature of the cooler is set to be equal to or lower than the set minimum temperature, and the temperature of each chamber is set to the above-mentioned minimum temperature. It is controlled by the second temperature control means so that the temperature difference from the temperature of the cooler is compensated. Claim 3
According to the invention of claim 1, in the invention of claim 1, the heat insulating material on the front side surface is made of a transparent member or an opaque member.

[0007]

In this invention as described above, in the invention of claim 1, the chamber having the front side surface made of a heat insulating material and the other side surface made of a heat conductive material is used as the front side surface on one side surface of the tank. A plurality of chambers are placed inside the tank, and an air jacket is formed inside the tank by forming a gap between these chambers and other side surfaces. The second temperature control means maintains the desired temperature of each chamber while maintaining the temperature difference from the temperature of the air jacket while cooling to each temperature to cool each chamber. According to a second aspect of the invention, the temperature of the cooler is set to a temperature not higher than the minimum temperature among the temperatures set for each chamber as desired, and the temperature of each chamber has a temperature difference from the temperature of the cooler. Each is controlled by the second temperature control means so as to be compensated. Claim 3
In the invention of (1), the front side surface is a heat insulating material, and when the member having transparency is used while keeping the heat retaining property in the chamber, the inside can be observed or the member having opacity is used. For things, a bright and dark environment can be created.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiments of the present invention, the same parts as those in the prior art are designated by the same reference numerals and the description thereof will be omitted.
Mainly different parts will be described. In the first embodiment of the present invention shown in FIGS. 1 to 3, the chamber 4 shown in FIG. 3 has a front side surface 9 which is made of a heat insulating material so that it can be opened and closed or detachably mounted as a door portion, and the other side surface 10 is heated. The chamber 4 is made of a conductive material, the front side surface 9 is located on one side surface of the constant temperature bath device 1, and the chambers 4 are arranged in multiple stages or multiple stages inside the bath, and a plurality of chambers 4 are mounted. As shown in FIG. 2, an air jacket 20 is formed in the tank 3 so as to have a gap 21 through which cold air can flow between each other and between the other side surfaces 2 of the constant temperature tank apparatus 1 and the plurality of chambers 4 respectively. A second temperature control means (not shown) is provided. The heater 5 has this second temperature control means and is provided at the base of the chamber 4. Heater 5
May be provided not only on the base but also on the side. Further, a fan 22 may be provided to quickly make the temperature in the chamber 4 uniform. Further, a light source (not shown) may be provided in each chamber 4, and the light source may be program-controlled so that the environment can be freely adjusted in a bright or dark environment, that is, a daytime environment.

The temperature of each chamber 4 can be set to a desired one by the second temperature control means, and the temperature of the cooler 7 is controlled so as to be equal to or lower than the set minimum required temperature.
The information output of the temperature control means is set by the input first temperature control means, and the temperature of each chamber 4 is controlled by the second temperature control means so that the temperature difference from the temperature of the cooler 7 is compensated. . This second temperature control means is installed on the operation panel 8 provided on the front surface, and an arbitrary temperature control pattern can be input in advance from the outside by an operation knob or a program chart.

In such a configuration, the second temperature control means causes the respective heaters to generate heat in response to the input signal of the set desired temperature, and the cooled air jacket 20.
As a minimum cooling source, the inside of each chamber 4 is cooled to the temperature of the air jacket 20 by heat conduction from the other side 10 of the heat conductive material, and the temperature difference from the temperature of the air jacket 20 is compensated. The desired constant temperature environmental conditions are created in a state close to the natural environment by heating at 5, and the temperature in each chamber 4 is independent and precise between the chambers 4 and dry. The forced circulation of the cold air is not performed, the inside of each chamber 4 is not dehumidified, the test object and the culture solution are not dried, and the test and research can be performed in a natural state. Since they are isolated from each other, there is no air exchange between them and there is no mutual contamination of plants, animals and microorganisms. Further, since each chamber 4 does not have a thick heat insulating layer surrounding them, the space can be made wider, and the space can be saved, so that the constant temperature oven device 1 can be provided at low cost.

When a plurality of chambers 4 are installed in the tank and the temperature of the chambers 4 is desired to be in the range of approximately 5 ° C to 50 ° C, the temperature of the air jacket 20 is kept at 0 ° C and the chambers 4 are kept in each chamber 4. The desired results can be set, and the research results of comparative evaluation of germination, long-term culture, rearing, etc. of the organisms are highly reliable, and those test studies can be conducted simultaneously to speed up the test studies. Can be achieved.

In the second embodiment, although not shown, the chamber 4
There is no difference from the first embodiment except that a heat insulating material is used for the front side surface 9 and the heat insulating material is made of a transparent member or an opaque member. In such a thing, the inside of which can be observed or the member which has opacity is used while the heat insulating material uses the member having transparency while keeping the heat retaining property in the chamber 4. In the case of an object, it is possible to shield the light from the outside and use a light source to freely adjust the environment of bright and dark, that is, the environment for a long day.

[0013]

The present invention is as described above, and the invention of claim 1 forms a sealed tank on the peripheral side surface using a heat insulating material, and a fan for stirring air in the tank. In a constant temperature bath apparatus including a cooler provided with a first temperature control means, a front side surface is made of a heat insulating material, and the other side surface is made of a heat conductive material. A plurality of chambers are installed on one side surface and are installed in the tank, and an air jacket is formed in the tank by forming a gap between these chambers and between the other side surfaces.
Since it has a temperature control means, it is possible to save space in the device, the insides of the multiple chambers are not dehumidified, and there is no mutual cross-contamination of living organisms, which does not adversely affect the test. The temperature of each chamber can be maintained independently and under the same conditions without being affected by the temperature of disturbance, and the test research such as germination, culture and breeding can be performed at the same time. It is possible to speed up research, and the reliability of research results is high.
In the invention of claim 2, the temperature of each chamber can be set to a desired value, the temperature of the cooler is set to be equal to or lower than the set minimum temperature, and the temperature of each chamber is the same as the temperature of the cooler. Since the second temperature control means controls the respective differences so as to compensate for the difference, the insides of the plurality of chambers are not dehumidified, and bio-contamination does not occur to adversely affect the test. The temperature in each chamber can be maintained independently and precisely and freely without being subjected to it, and a temperature environment close to nature can be obtained freely, and test research such as germination, culture, and breeding can be performed simultaneously, speeding up the research. It has the effect that it can be measured and the research results are highly reliable. According to the invention of claim 3, since the heat insulating material on the front side surface is made of a transparent member or an opaque member, it is possible to ensure heat retention in each chamber and to have a transparent member. There is an effect that the inside can be observed in the case of using the above, or that a bright and dark environment can be easily created in the case of using the member having the opacity.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of an embodiment of the present invention.

FIG. 2 is a schematic vertical sectional side view of the above.

FIG. 3 is a schematic perspective view of the above chamber.

FIG. 4 is a schematic front sectional view of a conventional constant temperature oven device.

FIG. 5 is a schematic front sectional view of another constant temperature oven device of the above.

FIG. 6 is a schematic front cross-sectional view of a constant temperature oven apparatus in which a column member having good thermal conductivity and a plurality of heat insulating plates supported by the column member are provided in the same tank.

[Explanation of symbols]

 1 Constant temperature bath device 2 Surrounding side surface 3 Inside tank 4, 24, 24 ', 34 Chamber 5 Heater 6, 15, 22 Fan 7 Cooler 8 Operation panel 9 Front side surface 10 Other side surface 20 Air jacket 21 Gap 25 tank

Claims (3)

(57) [Claims] 1. A constant temperature bath apparatus comprising a cooler provided with a fan for agitating air in the bath and a first temperature control means, the bath having a peripheral side surface sealed with a heat insulating material. In (1), a chamber in which the front side surface is made of a heat insulating material and the other side surface is made of a heat conductive material is provided with a plurality of chambers in which the front side surface is positioned on one side surface of the tank, An air jacket is formed in the tank by forming a gap between each other and the other side surfaces, and the chambers are respectively formed into second chambers.
A thermostatic oven device having a temperature control means. 2. The temperature of each chamber can be set to a desired value, the temperature of the cooler is set below the set minimum temperature, and the temperature of each chamber has a temperature difference from the temperature of the cooler. 2. The constant temperature oven apparatus according to claim 1, wherein the temperature is controlled by the second temperature control means so as to be compensated. 3. The constant temperature oven apparatus according to claim 1, wherein the heat insulating material on the front side surface is made of a transparent member or an opaque member.