JP2001321681A - Heat control vessel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the repair of a sensor, a heater, a controller, or the like, in a heat control vessel used for a desiccator cabinet, an incubator or a dry sterilizer and to improve the handling. SOLUTION: The heat control vessel is provided at least with a heat control vessel body 2 equipped with a temperature sensor 12 and a heater 8 in a housing 4 equipped with an opening and closing door 6 and a controller 20 equipped independently from the heat control vessel body 2 and for controlling power supplied to the heater 8 by taking in a detected signal of the temperature sensor 12. The temperature sensor 12 and the heater 8, and the controller 20 are connected respectively to flexible cables 22 and 26 freely detachably.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temperature control tank capable of setting an internal temperature to a desired temperature. More specifically, the present invention relates to a temperature sensor and a heater mounted in the temperature control tank, a temperature control tank main body, and the like. The controller can be placed at any location by detachably connecting the electrical connection with the controller, which is provided separately and independently, with a flexible cable, thereby improving the usability and the sensor and heater. The present invention relates to a temperature control tank that facilitates replacement of components such as a temperature control tank.
The temperature control tank is used for, for example, a dryer, an incubator, an incubator, a dry heat sterilizer, and the like.

[0002]

2. Description of the Related Art A temperature control tank capable of arbitrarily setting the temperature in a tank or changing the temperature in the tank arbitrarily includes, for example, a dryer, an incubator, an incubator, a dry heat sterilizer, and a thermostat. Widely used as tanks and the like. These devices are used in physics and chemistry laboratories,
Widely used in various factories.

FIG. 4 shows an example of a conventional dryer using the above-mentioned temperature control tank.

[0004] In FIG. 4, reference numeral 80 denotes a temperature control tank having a hollow rectangular parallelepiped inside, to which an opening / closing door 82 is attached. The object to be dried is passed through the opening / closing door 82 so that the temperature control tank 8
0 inside and out.

A heater 84 is attached to the bottom of the temperature control tank main body 80, and the heater 84 is connected to a controller 86 mounted below the temperature control tank main body 80 by a lead wire 88.

Reference numeral 90 denotes a temperature sensor,
0 is inserted into the main body 80 of the temperature control tank through the back wall 92. A cable 94 sends an output signal of the temperature sensor 90 to the controller 86.

The temperature inside the temperature control tank main body 80 is detected as an electric signal by the temperature sensor 90 and sent to the controller 86 through a cable 94. The controller 86 compares the signal value with the set value and controls the power supplied to the heater, so that the temperature in the temperature control tank main body 80 is controlled to a desired temperature.

Reference numeral 96 denotes an exhaust port provided on the upper wall of the temperature control tank main body 80, and 98 denotes a storage shelf.

In the dryer having the above-described structure, since the temperature control tank main body 80 and the controller 86 are integrally formed structurally, for example, the heater 84 is cut off, the sensor 90 is damaged, or the controller 86 is damaged. In the event of a failure, the dryer must be disassembled and repaired, which is inferior in repair workability.

[0010]

The inventor of the present invention has made various studies to solve the above-mentioned problems, and has separated the structure of the main body of the temperature control tank and the controller from each other in terms of structure, and made them flexible cables. The inventors have conceived that the above-mentioned problem can be solved by the connection, and have completed the present invention. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to solve the above problems and to provide a temperature control tank that is easy to use.

[0011]

The present invention that achieves the above object is as follows.

[1] A temperature control tank main body in which a temperature sensor and a heater are mounted in a housing having an opening / closing door, and a detection signal of the temperature sensor provided independently of the temperature control tank main body and taken into the heater A temperature control tank having at least a controller for controlling supplied electric power, wherein the temperature sensor and the heater are detachably connected to a controller by a flexible cable.

[2] The temperature control tank according to [1], wherein the controller is attached to the side wall mainly of the temperature control tank so that the angle can be adjusted.

[3] The temperature control tank is used for a dryer, an incubator, an incubator, or a dry heat sterilizer [1] or [2].
Temperature control bath described in.

[4] The temperature control tank according to any one of [1] to [3], wherein the controller performs PID control by a microcomputer.

Hereinafter, the present invention will be described in detail with reference to the drawings.

[0017]

FIG. 1 is a schematic diagram showing a first embodiment of the present invention.

In FIG. 1, reference numeral 2 designates a temperature control tank, which comprises a rectangular parallelepiped housing 4 and a door 6. The housing 4
The door 6 is formed of a metal double plate, and is filled with a heat insulating material (not shown) such as glass fiber or asbestos. A heater 8 made of a heating resistor such as a nichrome wire is attached to the bottom of the temperature control tank main body 2, and a lead wire 10 of the heater 8 passes through the housing 4 and is drawn out.

Reference numeral 12 denotes a case that penetrates through the housing 4 and
A wiring mounting screw 14 is mounted at the rear of the sensor inserted therein. In addition, 16 is a storage shelf mounted in the housing 4, and 18 is an exhaust port formed on the upper wall of the housing 4.

A controller 20 is mounted on the upper surface of the temperature control tank main body 2. This controller 20
Is a separate device that is structurally independent and separate from the temperature control tank main body 2.

The controller 20 and the sensor 12
Are electrically connected by a flexible cable 22.
The controller 20 and the lead wire 10 of the heater 8 are electrically connected by a flexible cable 26 via a so-called one-touch connector 24.

As described above, since the cables 22 and 26 are flexible and can be bent, the place where the controller 20 is placed is not limited to the upper part of the temperature control tank main body 2, and the controller 20 can be moved or attached to an arbitrary place. Can be.

In the controller 20, a desired temperature is set in advance. The sensor 12 sends an electric signal corresponding to the temperature inside the thermostat main body 2 to the controller 20. The controller 20 having received the electric signal of the sensor 12 compares the set temperature with the temperature in the temperature control tank main body 2 and sends electric power corresponding to the temperature difference to the heater 8 through the cable 26. Thereby, the temperature in the temperature control tank main body 2 is controlled to the set temperature. Various control methods such as on / off control, proportional control, proportional integral control, and PID control are adopted as the control method.

FIG. 2 shows the controller 20 as shown in FIG.
3 shows a state in which it is attached to the side wall 64 of the temperature control tank main body 2.

In FIG. 2, reference numeral 60 denotes an L-shaped mounting bracket for the controller. The upper portion of the mounting bracket 60 is rotatably mounted on the side wall 64 by a screw 62, and a locking screw 70 inserted into the arc-shaped elongated hole 68. It is fixed by. Therefore, by loosening the locking screw 70, the controller 20 can be fixed at an arbitrary angle.

As described above, by changing the angle of the controller, the controller can be operated while viewing the display section of the controller from an arbitrary angle, thereby improving the usability.

FIG. 3 is a schematic diagram showing a second embodiment of the present invention.

In this embodiment, a description will be given of a temperature control tank of a type in which heated air circulates in a main body of the temperature control tank.

In FIG. 3, a sirocco fan 30 is mounted inside the temperature control tank main body 2 composed of the opening / closing door 6 and the housing 4 and a motor 32 mounted outside the temperature control tank main body 2.
Is transmitted to the sirocco fan 30.
A heater 34 is mounted around the sirocco fan 30 so as to surround the sirocco fan 30. The lead wire 36 of the heater 34 penetrates the back wall 44 of the temperature control tank main body 2 and is drawn out of the temperature control tank main body 2. Reference numeral 38 denotes a wiring mounting screw provided on the lead wire 36.

On the front side of the sirocco fan 30 in the axial direction, a ventilation guide plate 42 having an intake port 40 formed in the center is provided with a back wall 44.
Are mounted in parallel with the back wall 44 at predetermined intervals.
When the sirocco fan 30 operates, the intake port 40
Air sucked from the inside of the temperature control tank main body 2 passes through the gap between the back wall 44 and the air guide plate 42 and is blown into the temperature control tank main body from the peripheral portion of the guide plate 42.

Reference numeral 46 denotes a flexible power supply cable for supplying power to the motor 32, and 48 denotes a connector.
Other parts are the same as those in FIG. 1, and thus the same parts are denoted by the same reference numerals and description thereof will be omitted.

In the first and second embodiments,
A sensor 12, and a lead wire 10, for a heater 8, 34,
The connection between the cable 36 and the cable 26 is performed by using a wire mounting screw, but the present invention is not limited to this, and a commonly used connection method such as soldering, a connector, or a socket is appropriately used. Further, the place where the opening / closing door 6 is attached is not limited to the front as shown in the figure, but may be, for example, the upper part. Further, the controller 2
The installation location of “0” can also be installed at any location within the reach of the cable.

In the second embodiment,
Although a sirocco fan was used as the fan, it is not limited to this, and various fans can be used. Further, the place where the fan is mounted is not limited to the back wall, but may be an upper wall or a lower wall. In this case, the air guide plate is also moved accordingly. Still further, the present invention includes a case where no air guide plate is attached.

[0034]

According to the present invention, the main body of the temperature control tank and the controller are separated from each other and configured independently of each other, and both are connected by a flexible cable. It can be installed in a convenient place. Furthermore, since both are connected by a cable, when a sensor, a heater, a controller, or the like breaks down, these can be easily replaced, so that repair can be performed easily and in a short time.

[Brief description of the drawings]

FIG. 1 is a schematic side sectional view showing an example of a temperature control tank of the present invention.

FIG. 2 is a schematic side view showing a case where a mounting position of a controller is changed in FIG.

FIG. 3 is a schematic side sectional view showing another example of the temperature control tank of the present invention.

FIG. 4 is a schematic side sectional view showing an example of a conventional temperature control tank.

[Explanation of symbols]

 2,80 Main body for temperature control tank 4 Housing 6,82 Opening door 8,34,84 Heater 10,36,88 Leader wire 12,90 Sensor 14,38 Wiring mounting screw 16,98 Storage shelf 18,96 Exhaust port 20,86 Controller 22, 94 Cable 24, 48 Connector 26 Cable 30 Sirocco fan 32 Motor 40 Inlet 42 Blow guide plate 44, 92 Back wall 46 Power supply cable 60 Controller mounting bracket 62 Screw 64 Side wall 68 Arc-shaped long hole 70 Locking screw

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) C12M 1/38 C12M 1/38 A F26B 21/10 F26B 21/10 A 23/06 23/06 Z F term (Reference) 3L113 AA01 AB02 AC08 AC51 AC67 BA01 BA39 CA08 CB05 DA07 DA15 DA22 4B029 AA01 AA13 4C058 AA01 BB04 DD02 DD04 DD13 EE26 4G057 AD04

Claims (4)

[Claims] A temperature control tank having a temperature sensor and a heater mounted in a housing having an opening / closing door, and a detection signal from the temperature sensor provided independently of the temperature control tank and supplied to the heater. A temperature control tank having at least a controller for controlling power to be applied, wherein the temperature sensor and the heater are detachably connected to a controller by a flexible cable. 2. The temperature control tank according to claim 1, wherein the controller is attached to the side wall of the temperature control tank so as to adjust the angle. 3. A thermostat for a dryer, an incubator, an incubator,
Or the temperature control tank according to claim 1 or 2 used for a dry heat sterilizer. 4. The temperature control tank according to claim 1, wherein the controller performs PID control by a microcomputer.