JP4128701B2 - Chemical volatilization device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a chemical volatilization apparatus that volatilizes a chemical such as an insecticide in the air, and more particularly to improvement of means for informing the expiration date of a carrier impregnated or filled with the chemical.
[0002]
[Prior art]
In the chemical volatilization apparatus, as a method for determining the expiration date of the medicine, a method in which the operation time is electrically integrated by a control unit of a conventional apparatus has been proposed. In addition, in insect repellent volatilizers, etc., a substance that changes color due to a chemical change that reacts with air is prepared, and when it opens, the color change starts and changes to a used (expiration date) color after a certain period of time. Things were proposed.
[0003]
[Problems to be solved by the invention]
However, in the case of electrically integrating the operating time, once the carrier is taken out or the battery is replaced, the previous data on the carrier is lost and the expiration date cannot be managed accurately. was there.
[0004]
In the case of a substance that changes color in response to air, the color change reaction proceeds regardless of the actual volatilization state. For example, in a device that volatilizes the drug by a motor fan, the color change proceeds even when the motor is stopped. However, there is a problem that the discoloration time and the volatilization time do not match. In addition, some chemicals such as insect repellents will sublime without using a motor fan, but if such chemicals are sealed in a vinyl bag, the concentration of the chemical will immediately saturate in the vinyl bag, so volatilization will stop immediately. However, the amount of chemical substances that indicate the expiration date is very small, and the reaction can be continued if there is a small amount of air (oxygen), so the reaction proceeds with the air in the vinyl bag, and the color changed from the actual volatilization time. There was a problem that it was out of order. In addition, there are individual differences in color determination, and there is a problem that the determination varies among users.
[0005]
An object of the present invention is to provide a chemical volatilization device in which the actual volatilization time and the device instruction coincide.
[0006]
[Means for Solving the Problems]
The invention of claim 1 is a drug volatilization apparatus that volatilizes a drug held on a carrier.
The carrier is detachable from the apparatus body,
The carrier is provided with a non-volatile memory means for storing the volatilization time of the drug,
Apparatus main body, writes the volatilization time of the drug in the nonvolatile storage means of the carrier, reading the stored contents of the storage means, that the storage content is provided with a control unit for outputting the fact as long as a predetermined content It is characterized by.
[0007]
According to a second aspect of the present invention, in the first aspect of the invention, there is provided means for forcibly applying an air flow to the carrier, and the control unit writes the operation time of the means as the volatilization time in the nonvolatile storage means. Features.
[0008]
According to a third aspect of the invention, in the first and second aspects of the invention, the non-volatile storage means includes a plurality of fuses, and the control unit cuts the fuses every time a certain volatilization time elapses. It is characterized by writing.
[0009]
In the present invention, volatilization / volatilization includes vaporization, sublimation, and atomization, and includes all concepts contained in the air as molecules or fine particles. In the present invention, the carrier is preferably a sheet, a net, a mat, a honeycomb or the like having air permeability and air permeability. The carrier may also serve as a cartridge. Then, holding, impregnating, applying, kneading, adhering, fitting, or filling the drug having such properties to the carrier, and storing the degree of volatilization of the drug directly or indirectly on the carrier Means were provided. As the memory means, a fuse or a resistor that can be cut by an electric current, or a semiconductor component that is cut off by applying a voltage higher than a rating can be used. Then, the apparatus writes the passage of the time in the storage means as the volatilization time elapses. For example, the fuses are cut one by one. As a result, even if this carrier is taken out halfway, it is memorized how far it has been used on the carrier side, and even if this carrier is once removed from the device and set again, the volatilization time can be written from the middle of its use. Can be resumed, and the remaining amount and used can be notified accurately.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1A is a cross-sectional view showing the internal configuration of an insecticide volatilization apparatus according to an embodiment of the present invention, and FIG. 1B is a plan view showing a state in which the lid of the insecticide volatilization apparatus is removed. (C) is a figure which shows the example of a display of the display of the insecticide volatilization apparatus. Inside the case 10 of the insecticide volatilization apparatus 1, a cartridge 2 containing a breathable member 20 holding a volatile insecticide is set horizontally. Below the cartridge 2, there are provided a propeller fan 3 for forcibly contacting the cartridge 2 with air by blowing air and a motor 4 for rotating the propeller fan 3. Openings 10 a and 10 b made up of a large number of small holes are respectively provided in a portion of the case 10 that corresponds to the upper portion of the cartridge 2 and a portion that corresponds to the lower portion of the propeller fan 3. By rotating the propeller fan 3, the air taken in from the opening 10 b at the bottom of the case 10 passes through the inside of the cartridge 2 and volatilizes the insecticide held by the air-permeable member 20. And the air containing this volatilized insecticide is discharged | emitted in atmosphere from the opening part 10a of case 10 upper part.
[0011]
Further, the side part in the case 10 houses a circuit board 5 constituting a control part, a dry battery 6 for supplying power to the motor 4 and the circuit board 5. On the circuit board 5, a power switch 7, an LCD display 8, and a contact 9 are provided. A push button 7a, which is a key top of the power switch 7, protrudes to the outside of the case 10 so that the user can operate it.
[0012]
The LCD display 8 indicates how much of the currently set cartridge 2 is used (used amount), how much can be used (remaining amount), the remaining amount is low, and the fact that it is used. It is for display. FIG. 3C shows a display example on the LCD display 8. In this example, a number indicating the usage time up to the present time is shown, and a bar graph display showing the remaining amount and the usage amount is shown. A window 10d covered with a transparent resin is formed above the LCD display 8. The contact 9 is in contact with the contact 21 of the cartridge 2. The contact 21 is connected to a use time memory 22 built in the cartridge 2.
[0013]
The upper portion of the case 10 including the opening 10a and the window 10d is a removable lid 10c, and the user can replace the cartridge 2 by removing the lid 10c.
[0014]
FIG. 2 is a diagram showing a configuration of an electric circuit of the insecticide volatilization apparatus 1 and the cartridge 2. The control unit 5 configured on the circuit board is composed of a microcomputer. In addition to the dry battery 6, the power switch 7, the LCD display 8, and the contact 9, the temperature sensor 12 and the switching element 13 are connected to the control unit 5 as described above. The switching element 13 is composed of a power MOS-FET capable of high-speed switching, and turns on / off the supply of power to the motor 4 in accordance with a PWM pulse input from the control unit 5. When the power switch 7 is turned on, the controller 5 detects the outside air temperature by the temperature sensor 12 and controls the pulse width input to the switching element 13 based on the outside air temperature. That is, the higher the temperature is, the higher the volatility of the insecticide is. Therefore, the rotational speed of the motor is adjusted according to the temperature to always volatilize a certain amount of the insecticide.
[0015]
The usage time memory 22 has a so-called fuse ROM configuration, and is connected to each of the three data lines D0, D1, D2 and the three word lines A0, A1, A2 and arranged in a matrix. The resistor fuses R1 to R9 are provided. Each data line and word line is connected to the control unit 5 via a contact 21 and a contact 9.
[0016]
The control unit 5 can apply a weak voltage to the contact 9 to inspect the connection / disconnection state of each of the resistance fuses R1 to R9, and can apply a high voltage to the data line D0, D1, or D2 to A specific resistance fuse can be cut by dropping A0, A1 or A2 to zero potential.
[0017]
The control unit 5 cuts the resistance fuse of the cartridge 2 one by one every time the cartridge 2 is used for 10 hours, that is, every time the motor 4 is driven for 10 hours. As a result, the usage time of the cartridge is recorded in the usage time memory 22. When the cartridge 2 is replaced, the control unit 5 reads the usage time memory 22 of the newly set cartridge 2 to determine whether the cartridge 2 is new or has been used halfway. To do. Further, even when the dry battery 6 is replaced, the control unit 5 loses the memory, so the usage time memory 22 is accessed at the beginning of the operation to read the usage time of the cartridge 2.
[0018]
When all of the resistance fuses R1 to R9 are cut, this cartridge is used. When all the resistance fuses of the set cartridge 2 are cut, the control unit 5 displays a word or symbol indicating that the cartridge should be replaced on the LCD display 8 and stops the operation of the motor 4. Further, when the number of remaining resistive fuses is about one or two, since there is little insecticide remaining in the cartridge 2, a word or symbol for preparing the next is displayed on the LCD display 8.
[0019]
3 and 4 are flowcharts showing the operation of the control unit 5. The power switch 7 is a trigger switch, and the controller 5 is operated by the dry battery 6 regardless of whether the insecticide volatilization apparatus is powered on or off. In FIG. 3, when the cartridge has been replaced (s1), the usage time memory 22 of the cartridge is read (s2), and it is determined whether it has been used (s3). If not used, the usage time counter for counting the usage time thereafter is reset (s4). This usage time counter is a counter that is set inside the control unit 5 and counts 10 hours. If it is determined that it has been used in s3, a word or symbol indicating that it has been used is displayed on the LCD display 8 for a predetermined time (s5). Moreover, also when a dry cell is replaced | exchanged (s6), the same operation | movement is performed (s2-s5).
[0020]
FIG. 4 is a flowchart showing processing during normal operation. When the power switch is turned on, the cartridge usage time memory 22 is first read through the contact 9 (s10, s12). When the contact 21 facing the contact 9 is not detected, that is, when the cartridge is not set, an indication that the cartridge should be set is displayed (s11), and the power is turned off (s14). If the cartridge has been used, a message prompting replacement is displayed (s13), and the power is turned off (s14). If the expiration date of the cartridge is approaching, that is, if there is only one remaining resistive fuse, a display to the effect that the expiration date is approaching is displayed on the LCD display (s15).
[0021]
If a cartridge that has not been used is set, the detection value of the temperature sensor 12 is read (s16), the number of rotations of the motor 5 is determined based on this value (s17), and a pulse signal is sent to the switching element 13. Output (s18). Then, the usage time counter is updated at regular time intervals (for example, every 30 minutes) (s19). If the count value of the usage time counter reaches 10 hours as a result of this update, the usage time counter is reset (s20). ), The next fuse is cut (s21). And it returns to s12.
[0022]
With the above operation, even when a cartridge that has been used halfway is set, the usage time is measured based on the contents of the usage time memory, and the user can be notified of the exact used time.
[0023]
5 and 6 are diagrams showing another embodiment of the present invention. This embodiment is an insect repellent volatilization device installed in clothes dance or the like. Insect repellents are naturally sublimated and volatilized without forced airflow by a fan. A cartridge 32 filled with a medicine is stored in the case 31. A usage time memory 33 is provided at the upper part of the cartridge 32. Further, a control unit 34 is provided in the upper right part of the case 31, and the usage time memory 33 and the control unit 34 are connected to each other through contacts 44 and 45 (see FIG. 6). The control unit 34 is provided with a time limit indicator 35 composed of a plurality of LEDs.
[0024]
FIG. 6 is a configuration diagram of the control unit 34 and the usage time memory 33. The control unit 34 includes a clock generation circuit 41, a control circuit 42, and switching elements Q1 to Q5. Control circuit 42 turns on switching elements Q1 to Q5 sequentially (for example, every 200 hours).
[0025]
The usage time memory 33 has five resistance fuses R01 to R05. Each resistance fuse is connected in common to the common Vcc contact 45-1 of the contact 45 and individually connected to the LED contacts 45-2 to 45-6. In the contact 44 facing the contact 45, Vcc is supplied to the contact 44-1 facing the common Vcc contact 45-1. The LEDs 1 to 5 are connected to the resistors 44-2 to 44-6 facing the contacts 45-2 to 45-6 via the resistor r, respectively. And the other terminal of each LED1-LED5 is connected to the switching element Q6 in common. The switching element is switched by the oscillation circuit 43 at a predetermined duty ratio. Thereby, LED1-LED5 conduct | electrically_connects by the path | route of Vcc-resistor R01-R05-resistor r, and the switching element Q6, and it lights.
[0026]
On the other hand, the switching elements Q1 to Q5 are connected between the LEDs 1 to LED5 and the contacts 44-2 to 44-6, and as described above, the switching elements Q1 to Q5 are controlled by the control circuit 42 every 20 hours. Are sequentially turned on. When the switching element is turned on, an excessive current flows through the resistance fuse to which the switching element is connected, and the switching element is blown. Thereby, the LED connected to the resistance fuse is turned off. Accordingly, as the use continues, the number of LED lighting decreases, and the control circuit 42 stops operating when all the LEDs are extinguished.
[0027]
When a new cartridge is set, the selector 46 is switched to the control circuit 42 side, and the switching elements Q1 to Q5 are sequentially turned on one by one. As a result, the control circuit 42 can detect which resistance fuse is conductive and which resistance fuse is disconnected. Even when the cartridge 32 used halfway is set, the cartridge used up to where can be used. Can know.
[0028]
As described above, in this insect repellent volatilization apparatus, when the cartridge 32 is removed from the case 31 in the middle and stored in a vinyl bag or the like, the insect repellent is not volatilized and the use time memory 33 is not updated. When it is set to 31 and the use is started, the expiration date indicator 35 can be turned on from the middle of use.
[0029]
The insecticide volatilization device can remove the cartridge 32 from the case 31. However, the cartridge 32 is integrated, and the case 31 containing the cartridge is taken out of the package and the volatilization and timing are started when the battery is set. You may do it.
[0030]
In addition to the above embodiment, an air battery is built in the cartridge so that the drug sublimates in contact with the air and the air battery reacts with oxygen in the air to generate voltage. Thus, the expiration date may be displayed.
[0031]
【The invention's effect】
As described above, according to the present invention, even when the use of the medicine cartridge is interrupted in the middle and the use is started again in the middle, the usage period is accurately displayed, and the user can be informed of the used state accurately. it can.
[Brief description of the drawings]
FIG. 1 is a structural diagram of an insecticidal apparatus according to an embodiment of the present invention.
FIG. 2 is a circuit diagram of a control unit of the insecticidal device and a usage time memory of a medicine cartridge.
FIG. 3 is a flowchart showing the operation of the control unit.
FIG. 4 is a flowchart showing the operation of the control unit.
FIG. 5 is a structural view of an insect repellent material volatilization apparatus according to another embodiment of the present invention.
FIG. 6 is a circuit diagram of a control unit of the insect repellent volatilization apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Insecticide volatilization apparatus 2 ... Cartridge 3 ... Propeller fan 4 ... Motor 5 ... Control part (circuit board)
6 ... Dry battery 7 ... Power switch 7a ... Push button 8 ... LCD display 9 ... Contact 10 ... Case 10a, 10b ... Opening 10c ... Lid 10d ... Window (for display) 13 ... Switching element 20 ... Impregnating member 21 ... Contact 22 ... Use time memory 31 ... Case 32 ... Cartridge 33 ... Use time memory 34 ... Control unit 35 ... Use time limit display 41 ... Clock generator 42 ... Control circuit 43 ... Oscillation circuits 44, 45 ... Contact Q1-Q6 ... Switching element R01 to R05... Resistive fuses LED1 to LED5.

Claims (3)

In the drug volatilization apparatus that volatilizes the drug held on the carrier,
The carrier is detachable from the apparatus body,
The carrier is provided with a non-volatile memory means for storing the volatilization time of the drug,
Apparatus main body, writes the volatilization time of the drug in the nonvolatile storage means of the carrier, reading the stored contents of the storage means, the agent comprising a control unit that stored contents of outputting the fact as long as a predetermined content Volatilization equipment.   The drug volatilization apparatus according to claim 1, further comprising means for forcibly applying an air flow to the carrier, wherein the control unit writes the operation time of the means as the volatilization time in the nonvolatile storage means.   3. The chemical volatilization according to claim 1, wherein the nonvolatile storage unit includes a plurality of fuses, and the control unit performs writing by cutting the fuses every time a predetermined volatilization time elapses. apparatus.

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