JP5344475B2 - Heating transpiration device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat-transpiring device having an inexpensive and simple constitution and capable of performing a highly accurate heat-transpiring temperature control. <P>SOLUTION: This heat-transpiring device capable of setting at &ge;2 different temperatures and heat-transpiring a medicine at each of the set temperatures is provided by including an electric power source part, a thermistor, an electric current-detecting part for detecting electric current values flowing to the thermistor by an electric power supply from the electric power source part, a timer and a controlling part for stopping the electric power supply to the thermistor from the electric power source part in the case that the electric current value detected by the electric current-detecting part is at a predetermined value A, and after passing the set time of the timer, performing the electric power supply to the thermistor from the electric power source part. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a heating and transpiration device that can be set to two or more different temperatures and can heat and evaporate a drug at each set temperature.

  For example, while the liquid in the liquid container stored in the container is sucked up by the liquid absorption core provided in the container, the liquid absorption core is heated by the electric heating type heating element provided in the container. In the heating and transpiration apparatus for transpiration of liquid, timer means for controlling the energization time to the heating element to an arbitrary time, time display means for selectively displaying the energization time by the timer means, and the time display means are separate. Transpiration display means for clearly indicating the state of transpiration by light emission, the heating element has a positive temperature coefficient thermistor, and the temperature of the heating element is changed within a range of 30 to 150 ° C. within the energization time by the timer means. The transpiration display means has a configuration in which a plurality of light emission sources are arranged in the vertical direction and blinks sequentially from the lower light emission source to the upper side. Wherein the time display means and transpiration display means have been proposed heating transpiration apparatus (Utility Model Registration No. 2607789 discloses), characterized in that it is configured to operate simultaneously.

  Also, a heating element provided around a liquid absorption core for sucking up the chemical liquid filled in the liquid container, a power source for supplying power to the heating element, and an amount of power supplied from the power source to the heating element And a control unit that sequentially controls according to a preset sequence, wherein the sequence includes an acceleration mode in which the temperature of the heating element is set to a high temperature for a predetermined time, and the temperature is lower than the high temperature. It consists of a normal mode for setting the normal temperature and a suppression mode for setting the temperature of the heating element to a low temperature lower than the normal temperature, and appropriately selecting or combining the modes to cause the heating element to generate heat at different temperatures. A heating and transpiration apparatus characterized by further comprising means has been proposed (Japanese Patent No. 3587322).

  Also, a chemical container is housed in the container, and the liquid absorption core protruding upward from the chemical container is heated by a heating element provided in the container to heat the chemical liquid sucked up by the liquid absorption core to evaporate. In the apparatus, heating temperature control means for changing the temperature of the heating element into a plurality of ranges, and the vertical position of the heating element and / or the chemical solution container in the container body are adjusted to heat the liquid absorption core There has been proposed a heating transpiration apparatus characterized by comprising a heated area changing means capable of changing the area (Japanese Patent Laid-Open No. 2002-58414).

Utility Model Registration No. 2607789 Japanese Patent No. 3587322 JP 2002-58414 A

  The heating transpiration apparatus of the above prior art document includes a heating temperature control means capable of controlling the heating transpiration temperature. For this reason, when the room is large or the chemical concentration is low, if the heating transpiration temperature is set to a high temperature by the control of the heating temperature control means, the transpiration of the appropriate chemical solution can be achieved in a short time, and speedy response can be achieved. On the contrary, when the room is small, there are infants, when the concentration of the chemical solution is high, when there are few mosquitoes, or when only the repellent effect is desired, the heating transpiration temperature is controlled by the heating temperature control means. If it is set to a relatively low temperature, a response that matches the purpose can be obtained. That is, since the heat transpiration temperature can be set according to the intended application, an effective countermeasure can be taken.

  Therefore, it is very preferable to be able to control the heat transpiration of the chemical solution by controlling the heat transpiration temperature.

  However, in the heating transpiration apparatus of the above-mentioned prior art document, improvement is required for the control technique of the heating transpiration temperature. For example, high-precision control of the heat transpiration temperature and cost reduction of the heat transpiration device have been demanded.

  Therefore, the problem to be solved by the present invention is to provide a heating and transpiration device having a simple and inexpensive structure capable of highly accurate heating and transpiration temperature control.

The above issues are
It is a heating and transpiration device that can be set to two or more different temperatures and can heat and transcribe the drug at each set temperature,
A power supply,
The thermistor,
A current detection unit for detecting a current value flowing in the thermistor by power feeding from the power supply unit;
A timer,
When the current value detected by the current detection unit is a predetermined current value A, power supply from the power supply unit to the thermistor is stopped, and power supply from the power supply unit to the thermistor is performed after the set time of the timer has elapsed. This is solved by a heating and transpiration device comprising a control unit.

Also, it is a heating transpiration device that can be set to two or more different temperatures and can heat and transcribe the drug at each set temperature,
A power supply,
A second power supply unit;
The thermistor,
A current detection unit for detecting a current value flowing through the thermistor by feeding from the power supply unit or the second power supply unit;
When the current value detected by the current detection unit at the time of power supply from the power supply unit is a predetermined current value A, power supply from the power supply unit to the thermistor is stopped, and the power supply from the second power supply unit at the time of power supply stop is stopped. A heating transpiration apparatus comprising: a control unit that feeds power from the power supply unit to the thermistor when the current value detected by the current detection unit during power feeding is a predetermined current value B. Is done.

Also, it is a heating transpiration device that can be set to two or more different temperatures and can heat and transcribe the drug at each set temperature,
A power supply,
The thermistor,
A pulse voltage application unit for applying a pulse voltage to the thermistor;
A current detection unit for detecting a pulse current value flowing through the thermistor by the pulse voltage application unit;
When the pulse current value detected by the current detection unit is a predetermined current value A, power supply from the power supply unit to the thermistor is stopped, and the pulse current value detected by the current detection unit is a predetermined current value B And a controller that feeds power from the power source to the thermistor.

  The control of the heat transpiration temperature is highly accurate, and the heat transpiration device can be obtained at a low cost.

The block diagram of the heat transpiration apparatus of 1st Embodiment. The block diagram of the heat evaporation apparatus of 2nd Embodiment. The block diagram of the heat transpiration apparatus of 3rd Embodiment.

  The present invention is a heating transpiration device. In particular, this heat transpiration device can be set at two or more different temperatures, and can heat and evaporate a drug (for example, an insecticide, repellent, deodorant, or fragrance) at each set temperature. It is configured as follows. The heating and transpiration device of the present invention may be either a type in which a chemical solution is filled in a container or a mat type in which a chemical solution is impregnated.

  The heating transpiration device includes a thermistor called a PTC element, for example. A power supply unit is provided. A current detection unit for detecting a current value flowing through the thermistor by feeding from the power supply unit is provided. A timer is also provided. In addition, when the current value detected by the current detection unit is a predetermined current value, power supply from the power supply unit to the thermistor is stopped, and power supply from the power supply unit to the thermistor is performed after the set time of the timer has elapsed. A control unit to be provided. By the operation of this control unit, the heat transpiration temperature can be controlled with high accuracy. That is, the resistance value of the PTC element (the current value flowing through the PTC element) is a function of the heat generation temperature of the PTC element. Since there is a predetermined relationship between the current value (resistance value) flowing through the PTC element and the heat generation temperature of the PTC element, if the current value is measured, what is the heat generation temperature of the PTC element? Knowledge is gained. That is, when the current value flowing through the PTC element is X ampere, it is known that the heat generation temperature of the PTC element is Y ° C. Therefore, when the heating transpiration temperature is desired to be controlled at Y ° C., If it is detected whether or not the amperage is reached and the X ampere is reached, the heat generation temperature can be maintained at Y ° C. by stopping the power supply to the PTC element. When the power supply is stopped, the temperature of the PTC element decreases with the influence of the surroundings as time passes. Therefore, if the power supply to the PTC element is resumed after T time, the PTC element The exothermic temperature is maintained at about Y ° C.

  Or the point provided with the thermistor called a PTC element, for example, and the point provided with the power supply part (main power supply part) are the same as that of said heat evaporation apparatus. Moreover, the point provided with the electric current detection part which detects the electric current value which flows into a thermistor (PTC element) is the same as that of said heating transpiration apparatus. However, in this example, a second power supply unit (auxiliary power supply unit) is provided, and the current detection unit is supplied with power from the power supply unit (main power supply unit) or the second power supply unit (auxiliary power supply unit). The current value flowing through the thermistor can be detected. The control unit stops power supply from the power supply unit to the thermistor when the current value detected by the current detection unit at the time of power supply from the power supply unit is a predetermined current value A, and when the power supply is stopped, When the current value detected by the current detection unit at the time of power supply from the second power supply unit is a predetermined current value B, power supply from the power supply unit to the thermistor may be performed. Even with this configuration, the heat generation temperature of the PTC element can be controlled with high accuracy.

  Or the point which equips with the thermistor called the PTC element, for example, and the power supply part are the same as that of said heating transpiration apparatus. Moreover, the point provided with the electric current detection part which detects the electric current value which flows into a thermistor (PTC element) is the same as that of said heating transpiration apparatus. However, in this example, the thermistor (PTC element) is provided with a pulse voltage application unit that applies a pulse voltage, and the current detection unit is a pulse current value that flows to the thermistor (PTC element) by the pulse voltage application unit. It is comprised so that it can detect. The control unit stops power supply from the power supply unit to the thermistor (PTC element) when the pulse current value detected by the current detection unit is a predetermined current value A, and is detected by the current detection unit. When the pulse current value is a predetermined current value B, the power supply unit may be configured to supply power to the thermistor (PTC element). Even with this configuration, the heat generation temperature of the PTC element can be controlled with high accuracy.

  The present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram of a heat transpiration apparatus according to the first embodiment of the present invention.

  In FIG. 1, 1 is a PTC element. Reference numeral 2 denotes a power supply unit. The power supply unit 2 may be either an AC type or a DC type. In other words, any device that can supply electric power to cause the PTC element 1 to generate heat may be used. The PTC element 1 generates heat by supplying power to the PTC element 1, and the chemical solution is heated and evaporated by the generated heat.

  Reference numeral 3 denotes an ammeter (current detection unit). The ammeter 3 detects the value of current flowing through the PTC element 1.

  4 is a timer.

  Reference numeral 5 denotes a control unit. When the current value detected by the ammeter 3 reaches the current value A (0.025 A in the following example), the control unit 5 stops the power supply from the power supply unit 2 to the PTC element 1 (power off). In addition, a function of resuming power supply from the power supply unit 2 to the PTC element 1 after the set time of the timer 4 has elapsed (power on) is provided. For example, when a voltage of 100 V is applied to the PTC element 1, the PTC element 1 has a resistance value of 40 kΩ (current value is 0.0025 A) at 100 ° C., and a resistance value of 4 kΩ (current value is 0.025 A) at 50 ° C. ). When the power is turned on, a current starts to flow through the PTC element 1. By this energization, the PTC element 1 generates heat and the temperature rises. The resistance value gradually increases as the temperature rises. Therefore, the current value becomes smaller. When the measured value (current value) by the ammeter 3 reaches 0.025 A, the heat generation temperature of the PTC element 1 reaches 50 ° C. Here, when it is desired to maintain the heat generation temperature of the PTC element 1 at about 50 ° C., when the ammeter 3 detects that the value of the current flowing through the PTC element 1 has reached 0.025 A, the signal from the ammeter 3 is received. Thus, the control unit 5 is configured to switch the power supply unit 2 off. As a result, no current flows through the PTC element 1, and the temperature of the PTC element 1 slightly decreases due to heat dissipation to the surroundings. When the temperature drops somewhat, for example, when a time set in advance by the timer 4 (for example, 10 seconds) has elapsed, that is, when a signal from the timer 4 is received after the set time by the timer 4, the control unit 5 The unit 2 is configured to be switched on. As a result, a current starts to flow through the PTC element 1, and the PTC element 1 starts to generate heat again. That is, when the value of the current flowing through the PTC element 1 (measured value by the ammeter 3) reaches 0.025 A, the PTC element 1 generates heat at 50 ° C., and the PTC element 1 is deenergized at that time. To do. Since the heat generation of the PTC element 1 is stopped by stopping the energization, the temperature of the PTC element 1 starts to decrease thereafter. Since the temperature drop is a function of time, for example, assuming that the temperature drops by 1 ° C. after 10 seconds, the PTC element 1 can be resumed after the passage of 10 seconds. Can be maintained at 49 ° C to 50 ° C. That is, the heat generation temperature of the PTC element 1 can be controlled to approximately 50 ° C. In the above description, only the case where the set temperature is 50 ° C. has been described. However, if the relationship between the heat generation temperature and the current value (resistance value) is grasped, the PTC element 1 can be maintained at 60 ° C, can be maintained at 70 ° C, or can be maintained at 80 ° C. It is also possible to do. That is, only what value the measured value by the ammeter 3 is turned off. Therefore, it is possible not only to maintain the PTC element 1 at a temperature of 50 ° C. but also to maintain a temperature of 70 ° C. When the PTC element 1 reaches 100 ° C., the resistance value rapidly increases to 40 kΩ. Since almost no current flows, the PTC element 1 is maintained at 100 ° C. Of course, when almost no current flows, the heat generation of the PTC element 1 decreases, so the temperature decreases. However, when the temperature decreases, the resistance value decreases, so that a current starts to flow through the PTC element 1. This maintenance of 100 ° C. is controlled by the function of the PTC element 1 itself. That is, if the PTC element is used, the PTC element 1 can be maintained at a specific temperature (100 ° C. in the above example) without using the control unit 5.

  FIG. 2 is a block diagram of a heat transpiration apparatus according to the second embodiment of the present invention.

  In FIG. 2, 11 is a PTC element. Reference numeral 12 denotes a power supply unit. And it is comprised so that the PTC element 11 may generate | occur | produce heat by the electric power feeding from the power supply part 12 to the PTC element 11, and a chemical | medical solution may be evaporated by heating. In addition, 12a is a 2nd power supply part (Auxiliary power supply part: The power supply part of a low voltage (for example, 10v)).

  Reference numeral 13 denotes an ammeter (current detection unit). The ammeter 13 detects the value of the current flowing through the PTC element 11. Note that, when power from the power supply unit 12 is stopped in the PTC element 11, power is supplied to the PTC element 11 from the auxiliary power supply unit 12 a. Accordingly, even when the power supply from the power supply unit 12 is stopped, the ammeter 13 measures the value of the current flowing through the PTC element 11.

  Reference numeral 15 denotes a control unit. When the current value detected by the ammeter 13 becomes a current value A (for example, 0.025 A), the control unit 15 stops the power supply from the power supply unit 12 to the PTC element 11 (power off). However, even when the power supply unit 12 is off, the power from the second power supply unit 12a is supplied to the PTC element 11 as described above. Therefore, the ammeter 13 still measures the current. When the measured current becomes, for example, 0.026 A, the control unit 15 resumes the power supply from the power supply unit 12, that is, turns on the power. If the control unit 15 is configured as described above, it is not necessary to use a timer as in the first embodiment.

  FIG. 3 is a block diagram of a heat transpiration apparatus according to the third embodiment of the present invention.

  In FIG. 3, 21 is a PTC element. Reference numeral 22 denotes a power supply unit. And it is comprised so that the PTC element 21 will generate heat | fever by the electric power feeding from the power supply part 22 to the PTC element 21, and a chemical | medical solution may be heated and evaporated by this heat_generation | fever. Reference numeral 22 a denotes an auxiliary power supply unit for applying a pulse voltage to the PTC element 21.

  Reference numeral 23 denotes an ammeter (current detection unit). The ammeter 23 detects the current value flowing through the PTC element 21. When the power from the power supply unit 22 is stopped in the PTC element 21, a pulse current is supplied to the PTC element 11 from the auxiliary power supply unit 22a. Therefore, the ammeter 23 measures the value of the current flowing through the PTC element 21 even when the power supply from the power supply unit 22 is stopped.

Reference numeral 25 denotes a control unit. When the current value detected by the ammeter 23 becomes a current value A (for example, 0.025 A), the control unit 25 stops the power supply from the power supply unit 22 to the PTC element 21 (power off). However, even when the power supply unit 22 is in the OFF state, the pulse current from the auxiliary power supply unit 22a flows through the PTC element 21 as described above. Therefore, the ammeter 23 still measures the current. When the measured current becomes, for example, 0.026 A, the control unit 25 resumes the power supply from the power supply unit 22 , that is, turns on the power. If the control unit 25 is configured as described above, it is not necessary to use a timer as in the case of the first embodiment.

1,11,21 PTC element (Thermistor)
2, 12, 22 Power supply unit 12a, 22a Auxiliary power supply unit 3, 13, 23 Ammeter (current detection unit)
4 Timer 5, 15, 25 Control unit

Claims (3)

It is a heating and transpiration device that can be set to two or more different temperatures and can heat and transcribe the drug at each set temperature,
A power supply,
A second power supply unit;
The thermistor,
A current detection unit for detecting a current value flowing through the thermistor by feeding from the power supply unit or the second power supply unit ;
When the current value detected by the current detection unit at the time of power supply from the power supply unit is a predetermined current value A, power supply from the power supply unit to the thermistor is stopped, and the power supply from the second power supply unit at the time of power supply stop is stopped. A heating and transpiration apparatus, comprising: a control unit that feeds power from the power supply unit to the thermistor when the current value detected by the current detection unit at the time of power feeding is a predetermined current value B. It is a heating and transpiration device that can be set to two or more different temperatures and can heat and transcribe the drug at each set temperature,
A power supply,
The thermistor,
A pulse voltage application unit for applying a pulse voltage to the thermistor;
A current detection unit for detecting a pulse current value flowing through the thermistor by the pulse voltage application unit ;
When the pulse current value detected by the current detection unit is a predetermined current value A, power supply from the power supply unit to the thermistor is stopped, and the pulse current value detected by the current detection unit is a predetermined current value B And a control unit that feeds power from the power supply unit to the thermistor. 3. The heat transpiration apparatus according to claim 1 , wherein the thermistor is a PTC .

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