KR200262316Y1 - An Alarm Device - Google Patents

Abstract

The present invention is an alarm that can be easily installed in the door frame and window frame, the main switch for controlling the main power supply, the reed switch electrically connected to the main switch, and the electrical short circuit of the reed switch to the main switch Magnetic force means for magnetically constraining the reed switch, an alarm sound generating means for generating an audible frequency range sound, and a frequency controller electrically connected to control the frequency of the alarm sound generating means, A driving IC for determining whether the alarm sound generating means generates an alarm sound according to the electrical connection of the reed switch, and an electrolytic capacitor for supplying power of a predetermined capacity condensed when the reed switch is short-circuited for a predetermined time. The electrical short circuit is selectively determined according to the proximity of the magnetic means. For a predetermined time characterized in that for generating a warning sound.

Description

Alarm device

The present invention relates to an alarm device installed to prevent intrusion of an illegal intruder, and more particularly, a case, a device embedded in the case, an electrically shorted and connected reed switch, and a magnetically connected reed switch. It consists of magnetic force means for constraining, an alarm sound generating means for generating sound, a frequency controller for controlling sound waves of the alarm sound generating means, and an electrolytic capacitor for condensing a predetermined capacitance.

In general, an alarm device similar to the present invention is simply installed in sliding doors and sliding door frames or sliding doors and sliding door frames, and when a door corresponding to each door is opened, an alarm sound is generated to prevent an intruder's unauthorized intrusion. It is composed of a structure.

Such an alarm device generates an alarm sound when the door is opened during unauthorized intrusion, but when the door is closed again, the alarm sound stops and the opportunity to inform the outside disappears, which causes the purpose of the alarm to become infamous. have.

In addition, such an alarm device is generally unsuitable for preventing unauthorized intruders, and has a problem of being limited to only a visitor notification function.

Therefore, the present invention has been devised in view of the above-described conventional problems, and the first object of the present invention is to be interrupted according to the contact of the built-in reed switch to prevent unauthorized intrusion by an outsider, and to alarm for a predetermined time. It is to provide an alarm device that can generate a sound.

In addition, the second object of the present invention is to adopt a transfer type reed switch, the circuit is simple, when the lead switch bound by a separate external magnetic force when the outsider illegally intrudes out of the range of the magnetic force, a warning sound is generated and the lead It is to provide an alarm device with a built-in electrolytic capacitor so that the alarm sound can continue to extend to the condensed capacitance even if the switch is within the range of magnetic force and electrically shorted.

Objects of the present invention, the main switch 11 for adjusting the main power supply 20;

A reed switch 30 electrically connected to the main switch 11;

Magnetic means for magnetically constraining the reed switch 30 to control whether the reed switch 30 is electrically shorted to the main switch 11;

Alarm sound generating means for generating sound in an audible frequency range;

And a frequency controller 42 that is electrically connected to control the frequency of the alarm sound generating means, and determines whether to generate alarm sound of the alarm sound generating means according to the electrical connection of the reed switch 30. Drive IC 40; And

It is achieved by the alarm device 1000, characterized in that consisting of; electrolytic capacitor 41 for supplying the power of the predetermined capacity condensed during the short-circuit of the reed switch 30 to the drive IC 40 for a predetermined time.

In addition, the alarm sound generating means is preferably a speaker 60 that is electrically connected to the drive IC (40).

The alarm sound generating means may include a buzzer 70 electrically connected to the driving IC 40 and a coil that amplifies a current and voltage electrically connected and applied to amplify the alarm sound of the buzzer 70. It is preferable that it consists of (71).

In addition, the magnetic means is preferably a permanent magnet (200).

The present invention will become more apparent from the following detailed description and the preferred embodiments, in which the objects, specific advantages and novel features are associated with the accompanying drawings.

1 is a perspective view of an alarm device according to a first embodiment of the present invention,

2 is a circuit diagram of an alarm device according to a first embodiment of the present invention;

3 is a state diagram used in the alarm device according to the first embodiment of the present invention,

4 is a circuit diagram according to a second embodiment of the present invention.

<Description of the code according to the main part of the drawing>

10: Case 11: Main Switch

12: opening 20: main power

30: Reed switch 40: Drive IC

41: electrolytic capacitor 42: frequency controller

50: diode 60: speaker

70: buzzer 71: coil

100: alarm 200: permanent magnet

1000: alarm

Prior to the description of the drawings according to the present invention will be described briefly with respect to the reed switch, an important key point of the alarm device.

Lead switch is a 'magnetic material is inserted into both sides of the glass tube', and when the current flows, the magnetic force lines pass through the lead made of the magnetic material, the magnetic attraction force is generated to contact.

This type of switch is used in an automatic telephone exchange because it has fast contact operation and return and high contact reliability. The reed switch used in the present invention is a transfer type reed switch. When the short-circuit, the permanent magnet is far away and the magnetic force is weak, it is electrically connected to regulate the power supply of the alarm device.

Hereinafter, with reference to the accompanying drawings for the alarm device according to the present invention will be described.

1 is a perspective view of an alarm device according to the present invention.

As illustrated in FIG. 1, the alarm device 1000 is installed on sliding doors and sliding door frames or sliding doors and sliding door frames to detect intrusion of outsiders when the user is away from home or office for a long time due to going out and traveling. When a door corresponding to the door frame is opened, an alarm sound is generated to prevent an intruder from breaking into the door. The alarm 100 generates an alarm sound and the occurrence of the alarm sound of the alarm 100 is controlled by magnetic force. Magnetic means that can be made consists of a single set.

The alarm device 100 and the magnetic means from above are rounded and filleted in four corners, each having a rounded shape, the size of which is about 3.5 cm wide, about 6.5 cm long, and about 2 cm high. The magnetic means corresponding thereto has a size of about 1.4 cm in width and 4 cm in height and about 1.4 cm in height.

The alarm 100 is provided with a main switch 11 of the sliding method for supplying power from the main power supply 20 of about 4.5V capacity having a power capacity of about the battery, the outer case 10 of the round shape ), And a plurality of openings 12 formed in the front of the case 10 so that the alarm sound generation of the alarm sound generating means built in the case 10 can proceed far.

At this time, the alarm sound generating means is more preferably a speaker 60, and generates an alarm sound according to the electrical contact of the reed switch 30 built in the case 10.

The magnetic force means magnetically restrains the reed switch 30 (shown in FIG. 2) to control an electrical short circuit, and more preferably, the permanent magnet 200 expressing a magnetic force having a predetermined size. )to be.

The reed switch 30 is configured such that a contact point is shorted at a place where a magnetic force of a predetermined size is applied, and a contact point is connected to a place where a magnetic force is not applied to the place where an alarm sound is generated.

2 is a circuit diagram of an alarm device according to a first embodiment of the present invention.

As shown in FIG. 2, the alarm 100 includes a main switch 11 for supplying a main power supply 20 of about 4.5V and a reed switch electrically connected to the main switch 11. 30, a speaker 60 for generating sound in the audible frequency range and a driving IC 40 for controlling whether or not the alarm sound is generated.

In addition, when the power applied to the driving IC 40 is cut off by the short circuit of the reed switch 30 in the ON state of the main switch 11, the alarm 100 condenses power to the driving IC 40. An electrolytic capacitor 41 for supplying is included.

Here, the driving IC 40 includes a frequency controller 42 that is electrically connected to control the frequency of the speaker 60, and the speaker 60 according to whether the reed switch 30 is electrically connected. The frequency controller 42, which functions as an oscillator, is electrically connected so as to control the sound wave by varying the wavelength of the sound at low or high frequency within the range limited to the audible region. .

In addition, the electrolytic capacitor 41 is provided to condense as much power as necessary. When the permanent magnet 200 moves away from the ON state of the main switch 11 and the reed switch 30 is connected to a circuit, the speaker ( When the power is supplied to 60 and an alarm is generated and the permanent magnet 200 approaches and the reed switch 30 is shorted in the circuit, the power condensed therebetween is supplied to the driving IC 40 and the speaker 60. The alarm sound can be regenerated for a predetermined time.

At this time, the capacitance of the electrolytic capacitor 41 is about 330 ㎌, the alarm sound can last for about 30 seconds at this capacity, in addition to the case of about 680 ㎌ about 50 seconds, about 1000 인 In this case, it may last about 80 seconds, and this alarm sound generation time may be further extended in proportion to the capacitance of the electrolytic capacitor 41 to be used.

In addition, one diode 50 is electrically connected to the reed switch 30 in the circuit of the alarm 100. In the ON state of the main switch 11, electricity is continuously condensed on the electrolytic capacitor 41. Therefore, even when the main switch 11 is in the OFF state, the speaker 60 may be operated by the power that has been condensed on the electrolytic capacitor 41.

Therefore, to prevent this, the diode 50 discharges all the condensed power of the electrolytic capacitor 41 when the main switch 11 is in the OFF state, and when the main switch 11 is in the ON state again. Reset all operating modes.

On the other hand, whether the electrical short circuit of the reed switch 30 of the alarm 100 is determined by the permanent magnet 200 that is present separately from the alarm 100, the lead used in the present invention as described above Since the switch 30 is based on the transfer type operation principle, when the magnetic force reaches the maximum value in proximity to the magnetic force means, it is electrically shorted, and when the magnetic force reaches the minimum value as the magnetic force means moves away, the switch 30 is electrically connected.

Accordingly, the permanent magnet 200 determining whether the reed switch 30 is electrically shorted eventually determines the power supply of the driving IC 40 and the speaker 60, and the ON state of the main switch 11 and When the reed switch 30 is short-circuited in the state of the maximum magnetic force, when there is no alarm sound but passes the critical point where the magnetic force is close to the minimum value, the alarm sound is generated by the connection of the reed switch 30, and again the magnetic force is the maximum value. In this case, the condensed power of the electrolytic capacitor 41 is supplied to the driving IC 40 and the speaker 60 to generate an alarm sound for a predetermined time.

3 is a state diagram used in the alarm device according to the first embodiment of the present invention.

As shown in FIG. 3, the alarm device 100 is fixed to the door frame in the alarm device, and the permanent magnet 200 magnetically corresponding to the reed switch 30 in the alarm device 100 is fixed to the door. It is.

At this time, when the user goes out and closes the door and switches the main switch 11 of the alarm 100 to the ON state, the current passes through each circuit, and the driving IC 40 and the reed switch 30 and the electrolytic capacitor ( 41, but the reed switch 30 is electrically shorted because the magnetic force range of the permanent magnet 200 reaches its maximum.

Therefore, the speaker 60 electrically connected to the driving IC 40 does not generate an alarm sound, and at this time, the power is condensed on the electrolytic capacitor 41.

In addition, when the door is opened due to an outsider intrusion, when the magnetic force of the permanent magnet 200 with respect to the reed switch 30 reaches a minimum value, the reed switch 30 is electrically connected and the power source is driven by the driving IC 40. The alarm sound is generated from the speaker 60 afterwards.

In addition, when the door is closed again, the permanent magnet 200 is close to the reed switch 30 with the maximum magnetic force while the reed switch 30 is electrically shorted, but the condensed power of the electrolytic capacitor 41 is The alarm sound is supplied for the driving IC 40 in proportion to the condensed capacitance, for a predetermined time, for example, 30 seconds (capacitance 330 kV), 60 seconds (capacitance 680 kPa), and 80 seconds (capacity) Capacity of about 1000 kPa).

4 is a circuit diagram according to a second embodiment of the present invention.

As shown in FIG. 4, the alarm device 1000 is a magnetic force means for magnetically restraining whether an electrical short circuit between the alarm 100 and the reed switch 30 built in the alarm 100 occurs. In this case, the magnetic means is more preferably a permanent magnet (200).

At this time, the reed switch 30 can adjust the power supply of the main switch 11 in the ON state according to the constraint of the magnetic force, the short circuit is electrically shorted within the range of the magnetic force, and if it is out of the range is electrically connected Electricity is supplied to the driving IC 40.

Therefore, the alarm sound may be generated from the alarm sound generating means electrically connected to the drive IC 40, and if the power supply to the drive IC 40 is cut off later by a short circuit of the reed switch 30, the electrolytic capacitor immediately Since the power condensed at 41 is supplied to the driving IC 40, the alarm sound may be further extended for a predetermined time.

At this time, the alarm sound generating means may be a buzzer 70, the coil 71 is electrically connected to the buzzer 70 to amplify the alarm sound generated from the buzzer 70, the coil Reference numeral 71 amplifies and applies the current and voltage applied through the driving IC 40 to the buzzer 70 in advance.

Accordingly, the frequency controller 42 electrically provided in the driving IC 40 adjusts the frequency band of the buzzer 70 alarm sound to a high frequency or a low frequency in a range limited to an audible region, and the coil 71. The amplification of the alarm sound to be generated in the buzzer 70 may enlarge the volume.

In the alarm device 1000 according to the present invention as described above, the alarm 100 is a sliding door frame and a sliding door frame, the magnetic means can be installed opposite to each other in addition to the sliding door and the sliding door.

In addition, the alarm device 1000 may be used by connecting a separate adapter in addition to being operated by receiving power from a consumable battery.

As described above, according to the alarm device according to the present invention, if the door starts to sound when an outsider illegally intrudes, the alarm sounds continuously for a predetermined time even if the door is closed, preventing the intrusion and theft accident It can be prevented in advance, and there is a feature that can prevent various accidents, such as to warn people in advance.

In addition, the small size does not depend on the installation site, by adopting the transfer type reed switch, the cost savings due to the simplification of the circuit, there is an advantage that the general public can purchase at a low price.

Although the present invention has been described in connection with the preferred embodiments mentioned above, other various modifications and variations may be made without departing from the spirit and scope of the present invention. It is therefore believed that the appended claims will cover such modifications and variations as fall within the true scope of the present invention.

Claims (4)

A main switch 11 for regulating the power supply from the main power source 20; A reed switch 30 electrically connected to the main switch 11; Magnetic means for magnetically constraining the reed switch 30 to control whether the reed switch 30 is electrically shorted to the main switch 11; Alarm sound generating means for generating sound in an audible frequency range; And a frequency controller 42 that is electrically connected to control the frequency of the alarm sound generating means, and determines whether to generate alarm sound of the alarm sound generating means according to the electrical connection of the reed switch 30. Drive IC 40; And And an electrolytic capacitor (41) for supplying electric power of a predetermined capacity condensed at the time of shorting of the reed switch (30) to the driving IC (40). The alarm device according to claim 1, wherein said alarm sound generating means is a speaker (60) electrically connected to said drive IC (40). According to claim 1, wherein the alarm sound generating means current and voltage electrically connected and applied to amplify the alarm sound of the buzzer 70 and the buzzer 70 is electrically connected to the drive IC (40) Alarm device comprising a coil 71 for amplifying the. 2. The alarm device according to claim 1, wherein the magnetic means is a permanent magnet (200).