JP3190999U - Temperature control system - Google Patents

Abstract

Provided is a temperature control system in which a DC power supply and a temperature control device for an AC power supply are installed together in the same system, and the defects at the time of use can be compensated for each other.
A power supply switching device is connected to an AC power source and DC power sources, and switches a power source type based on a control signal. The AC temperature control device is connected to the output terminal of the power supply switching device 300, is driven by AC power output from the AC power supply 100, and controls the temperature. The DC temperature control device is connected to the output terminal of the power supply switching device 300, is driven by DC power output from the DC power sources 200, 201, 202, and 203, and controls the temperature. The temperature sensor 700 detects the environmental temperature. The microcontroller 800 is connected to the power switching device 300 and the temperature sensor 700, receives a signal from the temperature sensor 700, and controls the power switching device 300 with a built-in logic circuit.
[Selection] Figure 1

Description

  The present invention relates to a temperature control system.

  Conventionally, AC electricity has been adopted for heating a large amount of water. The main reason is that the power of AC electricity is large and sufficient power can be heated in water. If only a DC power supply is used, the heating rate is slow. In some cases, water cannot be heated because the power of the DC power supply is less than the heat dissipation power of water and the overall heat outflow is less than the power supplied by the DC power supply.

  On the other hand, the cost of using an AC power supply is very high, and AC electricity has a risk of leakage. Moreover, AC electrical leakage can be transmitted to the heated water. Therefore, a very thorough electrical insulation work is essential for this type of heating apparatus, but the electrical insulation work affects the heating efficiency.

  Many of the temperature control systems currently on the market have the above-mentioned problems. As a drawback, the constant temperature control system can provide a good temperature control effect, but the energy consumption is very high. Thus, an apparatus that has the above-mentioned advantages in a temperature control system and that can improve the disadvantages of known apparatuses is advantageous for industrial applications.

  The object of the present invention was made in view of the above-mentioned problems, and a temperature control capable of mutually compensating for defects at the time of use by installing a DC power supply and an AC power supply temperature control device together in the same system. To provide a system.

  A temperature control system according to the present invention includes a power supply switching device, an AC temperature control device, a DC temperature control device, a temperature sensor, and a microcontroller. The power source switching device is connected to an AC power source and at least one DC power source at an input end, and switches the type of power source based on a control signal. The AC temperature control device is connected to the output terminal of the power supply switching device and is driven by AC power output from the AC power source to control the temperature. The DC temperature control device is connected to the output terminal of the power supply switching device and is driven by DC power output from the DC power supply to control the temperature. The temperature sensor detects the environmental temperature. The microcontroller is connected to the power supply switching device and the field condition sensor, receives a signal from the field condition sensor, and controls the power supply switching device by a built-in logic circuit.

1 is a schematic diagram illustrating a temperature control system according to an embodiment of the present invention. It is a schematic diagram showing a temperature control system first operation pattern according to an embodiment of the present invention. It is a schematic diagram which shows the temperature control system 2nd operation pattern by one Embodiment of this invention. It is a schematic diagram which shows the temperature control system 3rd operation pattern by one Embodiment of this invention.

A temperature control system according to an embodiment of the present invention will be described with reference to the drawings.
(One embodiment)
As shown in FIG. 1, the temperature control system of the present invention includes an AC power supply 100, a DC power supply 200, a power supply switching device 300, an AC heating device 400, a DC heating device 500, and a microcontroller 800.

  The AC power supply 100 is 110 volts and is an externally supplied power source that is 2500 watts.

  The DC power supply 200 is used for switching power supplied from the outside.

  The power switching device 300 is connected at its input terminals to the AC power source 100 and at least one DC power source 200, respectively, and switches between the AC power source 100 and the DC power source 200, or a combination thereof.

  The AC heating device 400 is connected to the output terminal of the power supply switching device 300, receives the output current of the AC power source 100, converts the output current into heat energy, and provides it for heating.

  The DC heating device 500 is connected to the output terminal of the power supply switching device 300 corresponding to each DC power supply 200, receives the output current of the corresponding DC power supply 200, converts the output current into heat energy, and heats To do.

  The AC heating device 400 is attached around the heated device 600 together with the DC heating devices 500.

  Among them, the heated apparatus is, for example, a refrigerator, an air conditioner, or an electric blanket.

  As shown in FIG. 1, in the present embodiment, an embodiment having four sets of DC power sources 200, 201, 202, and 203 is preferable, but this is not restrictive. In the present embodiment, a plurality of sets of DC power sources 200, 201, 202, and 203 are provided, and the DC power sources 200, 201, 202, and 203 are respectively provided with corresponding DC heating devices 500, 501, 502, and 503. Each of which is attached around the device to be heated 600, and is distributed substantially equiangularly. In the illustrated example, four sets of DC heating devices 500 are distributed around the heated device 600 at intervals of 90 degrees. Therefore, uniform heating can be performed around the apparatus to be heated, and heating efficiency can be improved.

  Among them, each of the DC power supplies 200, 201, 202, and 203 is obtained by supplying the power supply 120 through the AC / DC converter 125 and the step-down transformer 130. The DC power supply is, for example, 12 volts and 240 watts. DC power supply.

  Please refer to FIG. The present embodiment further includes a temperature sensor 700 that is installed in the heated apparatus 600 and is an on-site situation sensor that detects the situation of the heated apparatus 600. In the present embodiment, the temperature inside the heated apparatus 600 is detected using a temperature sensor 700 that is a temperature sensor.

  The microcontroller 800 is connected to the power supply switching device 300 and the temperature sensor 700, receives a signal from the temperature sensor 700 (for example, the temperature status of the heated device 600), and is set in the logic circuit 810 of the microcontroller 800. According to the logic, the switching operation of the power supply switching device 300 (for example, the DC power supply 200 is turned on and the heating of the DC heating device 500 is started, or the AC power supply 100 is turned on and the heating of the AC heating device 400 is started, etc. .)

  For example, a display device 820 is attached to the microcontroller 800 to display related information such as water temperature and power supply used. In addition, in order to transmit an alarm about the field situation, for example, an alarm device 830 can be connected.

  As the power source of the microcontroller 800, the above-described AC power source or a DC power source that is appropriately stepped down can be used. However, this belongs to what can be easily obtained by a known technique, and detailed description thereof is omitted here.

  Reference is made to the first operation pattern of the present invention shown in FIG. Since the water temperature is considerably lower than the set temperature, the required power is large when the water tank needs to be heated. Therefore, the output of the power supply switching device 300 is set to the electric supply by the AC power supply 100 and the AC power supply is used. Then, the AC heating device 400 is driven to generate high energy, the heated device 600 (water tank) is heated, and the water temperature is raised to the required temperature with high power.

  Refer to the second operation pattern of the present invention shown in FIG. When the water temperature reaches the set value, the output terminal of the power supply switching device 300 is connected to the DC power sources 200, 201, 202, 203, and the DC heating devices 500, 501, 502, 503 are driven using the DC power source. In addition to providing heating or heat insulation to the heated apparatus 600, one or a plurality of sets of DC power supplies are activated in accordance with the power requirements of the site. The figure shows an example in which two DC power supplies 200 and 201 are activated.

  Subsequently, the third operation pattern of the present invention shown in FIG. 4 will be referred to. When the apparatus to be heated 600 requires a very large temperature control effect (for example, heating), the AC power supply 200 or the DC power supplies 200, 201, 202, 203 is activated by simultaneously starting the AC power supply 100 and the DC power supplies 200. Each heating device can be activated. At this time, the two heating devices can be activated simultaneously to provide maximum heating energy to the system.

  Among them, in this embodiment, operation conditions for various operation methods are set inside the microcontroller 800. For example, it has different operating temperatures and operating conditions corresponding to various operating modes such as boiling water, foot bath, bath, distillation and the like. When a necessary operation method is input by the user, the logic circuit determines a power source to be used based on the difference value between the target temperature and the detected system temperature based on the operation method. Different patterns can be operated on the same heated apparatus.

  As shown in FIG. 1, the present invention can further add load controllers 210, 211, 212, and 213 at the output terminals of the DC power supplies 200, 201, 202, and 203, respectively. 213 are connected to the microcontroller 800 and controlled by the microcontroller 800 to control the load output of the DC power supply, thereby achieving the purpose of load control. The logic of the load control can be set by the logic circuit 810 of the microcontroller 800, and the load corresponding to each situation can be set.

  The apparatus to be heated of the present invention is not limited to the water source described above, and includes an air conditioner, a dryer, a distillation apparatus, a carbonization apparatus, a sauna, steam, and the like.

  An object of the present invention is to provide a temperature control device in which a DC power supply and a temperature control device for an AC power supply coexist in the same system, take out the advantages of each, and make up for the disadvantages caused by use at different times. To do.

  The foregoing detailed description describes preferred embodiments of the present invention. However, this embodiment does not add any restriction to the present invention. Any application or change of the effect based on the technical idea of the present invention is included in the scope of the utility model registration request of the present invention.

100 AC power supply,
200, 201, 202, 203 DC power supply,
300 power switching device,
700 temperature sensor,
800 microcontroller.

Claims (10)

A power source switching device that is connected to an AC power source and at least one DC power source at an input end and switches a type of power source based on a control signal;
An AC temperature control device connected to the output end of the power supply switching device, driven by AC power output from the AC power supply, and controlling the temperature,
A direct-current temperature control device connected to the output terminal of the power supply switching device, driven by direct-current power output from the direct-current power supply, and controlling the temperature;
A temperature sensor for detecting the environmental temperature;
A temperature control system comprising: a microcontroller that is connected to the power supply switching device and the temperature sensor, receives a signal of the temperature sensor, and controls the power supply switching device by a built-in logic circuit.   When the temperature value detected by the temperature sensor is smaller than the set value stored in the logic circuit and the difference between the temperature value and the set value is equal to or greater than a predetermined threshold, the microcontroller 2. The apparatus according to claim 1, further comprising control means for switching the output of the power supply switching device to an output of the AC power supply, driving the AC heating device using the AC power supply, and heating the apparatus to be heated with high energy. The temperature control system described.   When the temperature value detected by the temperature sensor is smaller than the set value stored in the logic circuit and the difference between the temperature value and the set value is less than a predetermined threshold, the microcontroller 2. The temperature according to claim 1, further comprising control means for switching the output of the power supply switching device to the output of the DC power supply, driving the DC heating device using the DC power supply, and heating or keeping warm. Control system.   When the temperature value detected by the temperature sensor needs to reach the set value of the logic circuit in a short time, the microcontroller uses the control signal to output the power switching device from the DC power supply and the AC power supply. 2. The temperature control system according to claim 1, further comprising: a control unit that switches to an output by a power source and drives a corresponding heating device using the DC power source and the AC power source to provide maximum heat energy to a heated area. .   The temperature control system according to claim 1, wherein the controlled temperature device has at least one operation method of heat exchange, oven drying, distillation, sauna, and boiling.   2. The temperature control system according to claim 1, wherein the microcontroller has control means for controlling the power supply switching device to use at least one of the AC power supply and the DC power supply based on a control signal. .   2. The temperature control system according to claim 1, wherein the DC temperature control device has four sets and is attached around the device to be heated at equal intervals.   The temperature control system according to claim 1, wherein the microcontroller is provided with a display device for displaying information externally.   Between the output terminal of each DC power supply and the power supply switching device, all load controllers are connected to the microcontroller, and under the control of the microcontroller, load output control of the DC power supply is performed. The temperature control system according to claim 1, wherein the object of load control is achieved.   The temperature control system according to claim 1, wherein the controlled temperature device is a water tank, an air conditioner, or an electric blanket.

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