KR200357655Y1 - Automatic aroma spray circuit - Google Patents

Abstract

The present invention relates to an automatic spray control circuit of the fragrance that the user can freely select and set the spray cycle and the spray amount according to their will or taste.

The automatic spray control circuit of the fragrance according to the present invention includes a power supply unit for supplying a driving voltage to each component of the spray control circuit, a power switch for supplying or cutting off the driving voltage of the power supply unit, and a user selecting a spraying period and a spraying amount. A selector switch for inputting the control unit, a control unit for receiving the injection period and the injection amount selected by the user and automatically controlling the input signal; a solenoid unit receiving the injection signal from the control unit at a predetermined injection cycle and the injection amount; and supplied from the power supply unit It characterized in that it comprises a low voltage detection unit for detecting this when the driving voltage is lower than a predetermined voltage, and a low voltage display unit indicating whether or not the low voltage by the low voltage detection unit.

The fragrance automatic injection control circuit according to the present invention can be usefully used by being specifically installed in the fragrance automatic injector.

Description

Automatic spray control circuit for fragrance sprayer {Automatic aroma spray circuit}

The present invention relates to an automatic injection control circuit for a fragrance injector, and more particularly, to an automatic injection control circuit for a fragrance injector that the user can freely select and set the injection cycle and the injection amount according to their will or taste.

Conventionally, an injector for automatically spraying a certain amount of fragrance with a constant spraying period in order to remove unpleasant odors in a room such as a toilet or an office space, and to allow a user of the room or the like to be active in a comfortable atmosphere. Were used.

Today, it is not just used to remove unpleasant odors with perfume, but also used for the use of perfume. Aromatherapy is known as aroma therapy that prevents anxiety, insomnia or respiratory disease, while aromas inhaled by the nose promote psychological secretion by promoting the secretion of neurohormones. In order to use the fragrance therapy, the fragrance therapy uses an automatic fragrance injector that sprays fragrance at regular intervals in the room, and its range of use is gradually increasing.

However, most of the automatic fragrance injectors used today spray the fragrance components according to the spray cycle and the spray amount set once at the initial stage, so that the user cannot directly control the spray cycle and the spray amount.

In addition, the method of controlling the spraying conditions using a computer among the recently developed automatic incense injector is disclosed in Korea Patent Publication No. 2001-106712 "Incense injector and a power supply circuit for it, and a computer having a user interface Fragrance injection system ". However, the method according to the above-mentioned patent publication has to prepare a computer system separately, and to be coupled to the computer system, there is a problem that the general user should have a computer system in order to use a simple injector.

As such, the conventional incense injector used in the prior art has a disadvantage in that the user cannot arbitrarily set the spraying conditions to suit his or her taste and the indoor space, and has the disadvantage of using a large-scale computer system.

Accordingly, an object of the present invention is to solve the problems of the prior art, the automatic injection control is particularly suitable for a fragrance injector that allows the user to easily set the injection cycle and the injection amount without using any complicated device at all To provide a circuit.

In addition, another object of the present invention is to provide an automatic spray control circuit for a fragrance injector that allows the user to freely change and set to different injection cycles and injection amount using the same injector.

1 is a functional block diagram showing a spray control circuit according to the present invention,

2 is a detailed circuit diagram of the injection control circuit according to the present invention,

3 is an exemplary view of a fragrance injector employing the injection control circuit of the present invention.

♠ Explanation of symbols for the main parts of the drawings.

110; A power supply unit 120; Power switch

130; Selector switch 140; Control

150; Low voltage detection unit 160; Low voltage display

170; Solenoid switching unit 180; Solenoid drive

190; Solenoid

The present invention is to achieve the above object, the automatic injection control circuit of the perfume according to the present invention,

A power supply unit supplying a driving voltage to each component of the injection control circuit, and a power switch supplying or blocking a driving voltage of the power supply unit;

A selector switch that allows the user to select the injection cycle and injection volume;

Receives the injection period and the injection amount selected by the user from the header jump switch and outputs an injection signal having a pulse width according to the injection amount for each injection cycle, and outputs a low voltage display blinking signal when the low voltage detection signal is input from the low voltage detection unit With a control unit

A solenoid unit receiving the injection signal from the controller to operate the injection nozzle by the pulse width so that the incense stored in the incense storage container is injected;

A low voltage detector for detecting a driving voltage supplied from the power supply unit below a predetermined voltage and outputting a low voltage detection signal to the controller;

And a low voltage display unit which receives a low voltage display blinking signal from the control unit and flashes a warning lamp according to the low voltage display blinking signal.

In the present invention, when the injection signal is input from the control unit, the solenoid switching unit for performing a switching function according to the above, the solenoid driving unit to drive again by the pulse width of the injection signal, and the solenoid It is preferred to consist of a solenoid operated by a drive.

The fragrance automatic injection control circuit according to the present invention can be usefully used by being specifically installed in the fragrance automatic injector.

Hereinafter, on the basis of the accompanying drawings, the present invention will be described in more detail. However, the accompanying drawings are only intended to describe the technical idea of the present invention in more detail, and the technical idea of the present invention is not limited thereto.

1 is a functional block diagram illustrating a spray control circuit according to the present invention.

The injection control circuit includes a power supply unit 110, a power switch 120, a selection switch unit 130, a control unit 140, a low voltage detection unit 150, a low voltage display unit 160, and a solenoid switching unit 170. ), A solenoid driver 180, and a solenoid 190.

The power supply unit 110 supplies DC power to the injection control circuit of the present invention. DC power may be supplied via a battery, or may be supplied after rectifying and transforming commercial AC power. In addition, in the case of using a DC battery, the above-described DC power supply is provided by arranging 1.5V (volt) batteries in series. The DC power supplied from the power supply unit 110 is preferably 3.0V (volts) to 9.0V (volts), more preferably 4.5V.

The power switch 120 supplies or cuts off the DC power of the power supply unit 110 to the injection control circuit. The power switch 120 may be implemented as a typical on / off switch.

The selection switch unit 130 is preferably configured as a header jump switch that allows the user to manipulate the injection period and the injection amount. The selection switch unit 130 is preferably composed of a plurality of injection period selection switch for operating the injector at a constant cycle, respectively, and a plurality of injection amount selection switch for the constant operation of the injection amount of the injector. Each injection cycle selection switch and the injection amount selection switch constituting the selection switch unit 130 are connected to respective ports of the controller 140, respectively.

The control unit 140 controls the entire system in the injection control circuit of the present invention. In the relationship with the selection switch unit 130, when the user specifically selects and selects the injection period selection switch and the injection amount selection switch of the selection switch unit 130, the signal is detected accordingly and then set for each set injection period. An injection signal of an active row having a pulse width according to the injection amount is generated, and the injection signal is output to the solenoid switching unit 160.

When a specific injection signal is input from the controller 140, the solenoid switching unit 160 and the solenoid driver 170 drive the solenoid 190 by a pulse width corresponding to the specific injection signal, and the solenoid ( 190 is to operate the injection nozzle of the injector.

At this time, since the injection nozzle of the injector is operated by the solenoid 190 to a degree corresponding to a predetermined injection amount in a certain period, the fragrance stored in the fragrance storage container is a user-selected injection amount for each injection cycle selected by the user into the room To be sprayed.

On the other hand, the low voltage detection unit 150 detects that the power of the power supply unit 110 is lowered below a certain voltage, and then informs the control unit 140. In this case, the controller 140 outputs the low voltage display blinking signal to the low voltage display unit 160.

The low voltage display unit 160 receives the low voltage display flashing signal from the control unit 140, and flashes a warning light according to the signal, thereby allowing an external observer to detect the low voltage display blinking signal.

2 is a detailed circuit diagram of the injection control circuit according to the present invention.

In the present invention, the selection switch unit 130 is a plurality of injection cycle selection switch (SW1) (SW2) (SW3) and the injection nozzle of the injector to a certain amount of spray to periodically operate the injection nozzle of the injector A plurality of injection amount selector switches SW11, SW12, and SW13 can be operated as many as possible.

In FIG. 2 of the present invention, three injection period selection switches SW1, SW2, and SW3 and three injection amount selection switches SW11, SW12, and SW13 are shown, respectively. It is presented as the most preferred embodiment in order to make it easy to understand, but is not necessarily limited thereto.

In the present invention, the injection period selection switch (SW1) (SW2) (SW3) can be determined in detail by the program input to the control unit, which can be applied differently to each other depending on the use place of the injector. have. If the preferred embodiment of the injection period selection switch (SW1) (SW2) (SW3) is given, 5 seconds, 10 seconds, 30 seconds, 1 minute, 3 minutes, 5 minutes, 8 minutes, 10 minutes, etc. can be exemplified. And, if the preferred embodiment of the injection amount selection switch (SW11) (SW12) (SW13) is given, 10mg, 20mg, 30mg, 40mg, 50mg, 80mg, 100mg, etc. can be exemplified, can be selectively configured among them have.

Therefore, the present invention can release a variety of products by determining the injection cycle and the injection amount suitable for the use of the injector, the user can determine the injection cycle and the injection amount suitable for their indoor environment from the purchased products. . For example, if the purchased injector product is composed of three injection period selection switches and three injection amount selection switches, and the injection period of the injector is 10 seconds, 1 minute, 5 minutes, and the injection amount is 20 mg, 40 mg, 50 mg, When the user selects the injection cycle selection switch SW2 as 1 minute and the injection amount selection switch SW11 as 20 mg, the injector continuously sprays 20 mg of fragrance components every 1 minute.

If the user selects the injection period as 5 minutes and readjusts the injection amount to 40 mg, the user simply needs to operate the injection period selection switch SW3 and the injection amount selection switch SW12. Therefore, the user can use the same injector while operating the selection switch unit 130 while maintaining the same product, there is no need to purchase a separate product at all.

The low voltage detection unit 150 preferably includes a forward diode D1 and a low voltage detection transistor Q1 connected in series with the power supply unit 110. The low voltage sensing transistor Q1 detects this when the constant voltage transferred through the forward diode D1 is lowered to a voltage equal to or less than a predetermined value. The detectable constant voltage is lower than that of the supplied power supply, which can be set to a voltage that is insufficient for the injection control circuit to operate normally. In a preferred embodiment, when the constant voltage supplied is 4.5 volts (V), the detected voltage is about 3.6 volts (V). When the low voltage detecting transistor Q1 is lowered below a predetermined constant voltage, the low voltage sensing transistor Q1 is detected and notified to the controller 140.

The low voltage display unit 160 includes a forward photodiode LED1 connected in series between the power supply unit 110 and the controller 140 and a resistor R14. The low voltage display unit 160 notifies the outside when the constant voltage (eg, 4.5V) supplied from the power supply unit 110 is lower than the preset constant voltage (3.6V). When the control unit 140 receives the low voltage signal from the low voltage detecting transistor Q1, the control unit 140 sends the low voltage display blinking signal to the low voltage display unit 160. The forward photodiode LED1 receiving the blinking signal blinks a warning light according to the blinking signal, and allows the indoor manager to detect the blinking signal.

The solenoid switching unit 170 includes a resistor R13 connected to the control unit 140 and a PNP transistor Q2. The solenoid driver 180 includes a resistor R15 and an NPN transistor Q3 connected to the PNP transistor Q2. The solenoid drive unit 180 is driven according to a signal transmitted from the control unit 140, and this driving force operates the injection nozzle of the injector so that the fragrance inside the injector is diverted to the outside.

In addition, the injection control circuit may further include a plurality of capacitors (C1, C3, C10) for removing the ripple, and diodes (D3, D4) for blocking the reverse flow, and between the forward diode (D1) and the controller 140 Resistors R10, R11, and R12 for reducing the voltage may be connected.

Referring to the operation of the automatic injector according to the present invention configured as described above are as follows.

First, the user connects power to the power supply unit 110, or connects three 1.5V batteries in series (in this case, when the power supplied is 4.5V), the power switch 120 is powered on (power on) ), A driving voltage is supplied from the power supply unit 110 to the injection control circuit.

In addition, when the user operates the injection period selection switch and the injection amount selection switch of the selection switch 130 to select the injection period and the injection amount, the controller 140 detects the injection period and the injection amount selected by the user, and operates an internal timer. . The controller 140 supplies the solenoid switching unit 170 an injection signal in an active low state for injecting the fragrance by the injection amount at each injection cycle set by the user. Then, the PNP transistor Q2 of the solenoid switching unit 170 operates and the NPN transistor Q3 of the solenoid driving unit 180 operates to supply the driving voltage of the power supply unit 110 to the solenoid 190. The solenoid 190 operates the spray nozzle of the incense storage container so that the incense is sprayed.

The injection of the incense is performed by the injection signal supplied from the control unit 140 to the solenoid switching unit 170. The period of the injection signal is determined by the injection period selection switch set by the user, and the pulse of the injection signal is activated. The width is determined by the injection amount selection switch set by the user.

On the other hand, when the battery of the power supply unit 110 is exhausted and the driving voltage supplied from the power supply unit 110 is lowered below a predetermined value, the low voltage detecting transistor Q1 detects this and notifies the controller 140. Then, the control unit 140 outputs a low voltage display blinking signal to the low voltage display unit 160. When the low voltage display blinking signal is set to a low state, the photodiode LED1 is turned on, and the low voltage display blinking signal is set to a high state which is preset. The photodiode LED1 is turned off and blinks in accordance with the low voltage display blinking signal.

In this case, the user may sense that the power of the power supply unit 110 is low, and when the battery is charged in the power supply unit 110, the user may recognize that the battery is exhausted. Therefore, when the photodiode LED1 is turned on, the user can replace the batteries so that the injector can operate normally.

Figure 3 shows an exemplary automatic injector employing the air freshener injection control circuit 100 according to the present invention. Automatic injector can use a conventional product, it is also possible to design and use a separate product. When using a conventional automatic injector, as shown in FIG. 3, it can be completed by providing a printed circuit board in which the main part of the above-mentioned perfume injection control circuit 100 is designed inside the injector body. Detailed description of the structure of a conventional incense injector is omitted.

As described above, according to the present invention, the product supplier has an advantage of supplying injectors of various grades (Grade) by combining a plurality of injection period selection switches and an injection amount selection switch in one injector.

In addition, users can purchase the injector according to the present invention, and can select and set the injection cycle and injection amount of the most suitable for their indoor space, there is an advantage that can easily set the injection cycle and the injection amount according to each taste .

Although the circuit for the fragrance injector according to the present invention has been described in detail above, this is only for describing the most preferred embodiments of the present invention, and the present invention is not limited thereto. Is determined and defined. In addition, anyone of ordinary skill in the art will be able to make various modifications and imitations according to the description of the specification of the present invention, but it will be apparent that this is also outside the scope of the present invention.

Claims (2)

A power supply unit supplying a driving voltage to each component, and a power switch supplying or blocking a driving voltage of the power supply unit; A selection switch for allowing a user to select a spraying period and a spraying amount; Receives the injection period and the injection amount selected by the user from the header jump switch and outputs an injection signal having a pulse width according to the injection amount for each injection cycle, and outputs a low voltage display blinking signal when the low voltage detection signal is input from the low voltage detection unit A control unit; A solenoid unit configured to receive a spray signal from the controller and operate the spray nozzle by the pulse width to spray the fragrance stored in the fragrance storage container; A low voltage detection unit for detecting that the driving voltage supplied from the power supply unit falls below a predetermined voltage and outputting a low voltage detection signal to the controller; A low voltage display unit which receives a low voltage display blinking signal from the control unit and flashes a warning lamp according to the low voltage display blinking signal; Automatic incense injection control circuit comprising a. The method of claim 1, wherein the solenoid unit is a solenoid switching unit for performing a switching function according to the injection signal is input from the control unit, the solenoid driving unit to drive again by the pulse width of the injection signal, and A solenoid injection control circuit comprising: a solenoid operated by the solenoid drive unit.