KR20180055431A - Bypass apparatus and doorbell apparatus comprising the same - Google Patents

Abstract

The present invention provides a bypass device and a doorbell device using the same. According to one embodiment of the present invention, the bypass device comprises: a rectifying unit for rectifying a voltage applied to both ends of a doorbell; a first switch connected in series with the rectifying unit, turned on when the voltage outputted from the rectifying unit is higher than a reference voltage, and turned off when the voltage outputted from the rectifying unit is lower than the reference voltage; and a second switch connected in parallel between both ends of the doorbell, turned off when the first switch is turned on, and turned on when the first switch is turned off.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bypass device and a door bell device using the bypass device,

The present invention relates to a bypass apparatus and a door bell apparatus using the same.

Conventional door bell systems applied at the premises include transformers, doorbells, and doorbell switches.

1 to 2 show an example of a door bell system.

Referring to Figures 1-2, the transformer 10 may include a primary coil and a secondary coil. The primary coil may be connected to the home AC power source (not shown), and the secondary coil may be connected in series to the door bell 12 and the door bell switches 14, 16. The transformer 10 converts the AC voltage to a level suitable for driving the door bell. The door bell 12 is a device for outputting sound by using electromagnetic or electricity, and may be used in combination with a bell, a buzzer, a chime, and the like. The door bell switches 14 and 16 are normally open switches. When the door bell switch is closed, the door bell system is activated. The door bell switches 14 and 16 may be used in combination with a button, a door bell button, and the like. For example, when a person presses the door bell switches 14 and 16, the door bell switches 14 and 16 are closed, and a closed circuit for the door bell 12 is formed. As a result, a large current flows through the electric wire coil in the door bell 12 to become an electromagnet. There is a ball inside the wire coil, and the wire coil with the electromagnet pulls the ball and can output the sound.

As shown in Figure 1, in a single door system, the door bell system 10 may include a single door bell switch 14, but in a two door system, (10) may include two door bell switches (14, 16).

On the other hand, as the need for user convenience increases, a technique for connecting various interface devices to the door bell switch has been developed. For this, there is an attempt to supply power to the interface device by diverting power from the conventional door bell system. At this time, the current flowing through the interface device affects the door bell, which may cause malfunction of the door bell or noise.

SUMMARY OF THE INVENTION The present invention provides a bypass apparatus and a door bell apparatus using the same.

According to an aspect of the present invention, there is provided a bypass device comprising: a rectifying unit for rectifying a voltage across both ends of a door bell; a rectifier connected in series with the rectifying unit, the rectifier being turned on when the voltage output from the rectifying unit is higher than a reference voltage, And a second switch which is connected in parallel between both ends of the door bell and is turned off when the first switch is turned on and turned on when the second switch is turned off.

And a capacitor disposed between the rectifying unit and the first switch. The duration of the turn-off of the second switch may be controlled by the capacitance of the capacitor.

And a resistance portion connected in parallel between both ends of the door bell, wherein the rectifying portion may be connected in parallel at both ends of the resistance portion.

One end of the second switch may be connected to one end of the door bell, one end of the resistor may be connected to the other end of the door bell, and the other end of the second switch may be connected to the other end of the resistor.

When the second switch is turned off, the path of the current flowing between one end of the door bell and the other end of the door bell may be blocked.

The resistor may include a plurality of resistors connected in parallel.

And a voltage distributor disposed between the rectifying unit and the first switch. The voltage input to the first switch may be a voltage distributed by the voltage distributor.

The first switch includes a phototriac, and the second switch may include a triac element.

Wherein the first main electrode of the phototriac is connected to a first main electrode of the triac element, the second main electrode of the phototriac is connected to a gate electrode of the triac element, A first resistor may be coupled between a node between the first main electrode of the triac element and the gate electrode of the triac element and a second main electrode of the triac element.

A second resistor is further connected between the first main electrode of the phototriac and the first main electrode of the triac element, and the resistance of the first resistor may be at least 100 times the resistance of the second resistor.

The rectifying part may include a bridge diode.

When the door bell switch is turned off, the second switch may be turned on.

The door bell system according to an embodiment of the present invention includes a power input unit, an interface unit receiving power from the power input unit, and a bypass device connected to both ends of the door bell. When the door bell switch is turned off, The current flowing from the power input unit to the interface unit is diverted to the door bell and the bypass device, and when the door bell switch is turned on, the current flowing through the bypass device is shut off, A first switch connected in series with the rectifying part to turn on when the voltage outputted from the rectifying part is higher than the reference voltage and turned off when the voltage is lower than the reference voltage, And is turned off when the first switch is turned on, and the second switch And a second switch which is turned on when the switch is turned off.

The interface unit may include a camera.

The voltage applied to the rectifying part when the door bell switch is turned on may be higher than the voltage applied to the rectifying part when the door bell switch is turned off.

The door bell system according to the embodiment of the present invention can stably supply power to the interface device. Particularly, according to the embodiment of the present invention, the path of the current toward the door bell can be bypassed according to the on / off of the door bell switch. Accordingly, it is possible to prevent the door bell from malfunctioning due to the current flowing from the door bell switch to the interface device when the door bell switch is turned off. When the door bell switch is turned on, And the sound of the door bell can be stably outputted.

1 to 2 show an example of a door bell system.
3-4 are schematic diagrams of a door bell system in accordance with an embodiment of the present invention.
5 is a block diagram of an interface according to one embodiment of the present invention.
6 is a schematic diagram of a bypass apparatus according to an embodiment of the present invention.

The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in the drawings. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms including ordinal, such as second, first, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the second component may be referred to as a first component, and similarly, the first component may also be referred to as a second component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings, wherein like or corresponding elements are denoted by the same reference numerals, and redundant description thereof will be omitted.

FIGS. 3 and 4 are schematic views of a door bell system according to an embodiment of the present invention, and FIG. 5 is a block diagram of an interface unit according to an embodiment of the present invention.

3 to 4, the door bell system 30 includes a door bell 100, a door bell device 200, and a bypass device 300.

The door bell 100 is a device for outputting sound by using electromagnetic or electricity, and can be mixed with a bell, a buzzer, a chime, and the like. The door bell 100 may be a mechanical door bell for outputting a short sound by a ball or an electronic door bell for outputting a melody.

The door bell apparatus 200 includes a door bell switch 210 and an interface unit 220.

The door bell switch 210 may be used in combination with a button, a door bell button, or the like. The door bell device 200 may be installed around the door.

5, the interface unit 220 includes a system on chip (SoC) 221, an image module 222, a sensor module 223, an audio module 224, a communication module 225, Module 226, as shown in FIG. However, this is merely an example, and the interface unit 220 according to an embodiment of the present invention may include more or fewer configurations than these configurations.

The SoC 221 is connected to the image module 222, the sensor module 223, the audio module 224, the communication module 225 and the LED module 226, have. For example, the SoC 221 may control the enable or disable of the module included in the interface unit 220. [

The image module 222 may include a camera unit. The camera unit may include a lens and an image sensor. The lens includes at least one of a convex lens, a concave lens, a cylinder lens, a Fresnel lens, and a wide-angle lens, and photographs a range of objects from the installed position. The image sensor converts an optical signal incident through the lens module into an image signal. The image sensor corresponds to a configuration generally used in a digital camera or the like, and serves to convert light received through a camera lens, that is, captured image information, into electrical information, digital information.

The sensor module 223 senses the surrounding objects. The sensor module 223 may include at least one of a geomagnetic sensor, an acceleration sensor, an altimeter, a gyro sensor, an infrared sensor, and a proximity sensor, for example. Here, the infrared sensor may be a passive infrared ray (PIR) sensor. The PIR sensor can sense the temperature change of the object. Accordingly, when the person is moving, the sensor module 223 can detect the presence of a person using the temperature change. The sensor module 223 is installed around the image module 222, and a plurality of the sensor modules 223 can be installed.

The SoC 221 receives the image signal through the image module 222, receives the sensing signal of the object through the sensor module 223, and processes it. For example, the SoC 221 can correct the image signal received through the image module 222 using the sensing signal of the object received through the sensor module 223. [

The audio module 224 may include a microphone and a speaker. The microphone can receive an audio signal, and the speaker can output an audio signal. The SoC 221 can process the audio signal input through the microphone.

The communication module 225 includes a wired or wireless communication module and transmits an image signal processed through the SoC 221 to a display device (not shown) or an audio signal processed through the SoC 221 to a speaker .

The LED module 226 is a light emitting module and can be mixed with a flash LED.

The interface unit 220 may be mixed with a network camera or a camera device.

On the other hand, when the power inputted from the transformer T is directed only to the door bell 100 in accordance with the turning on or turning off of the door bell switch 210, 220, respectively.

The door bell apparatus 200 may further include a power input unit 230, a switching circuit 240, a controller 250, and a battery unit 260.

AC power is supplied to the inside of the door bell unit 200 through the power input unit 230.

The switching circuit 240 is connected to the door bell switch 210 and may include a triac element 242. The triac element 242 is a semiconductor control component to which bi-directional current control is performed, and has two main electrodes E1 and E2 and one gate electrode G. When there is no gate signal applied to the gate electrode G, the triac element 242 is turned off, and when there is a gate signal applied to the gate electrode G, the triac element 242 turns on the main electrode E1 , E2), regardless of the polarity of the first, second,

When the door bell switch 210 is pressed, that is, when the door bell switch 210 is turned on, a gate signal is applied to the gate electrode G of the triac element 242, and the power input unit 230, 100 and the triac element 242 to the power input part 230. The power supply part 230 is connected to the power supply part 230 via the power supply part 230. [ That is, the current path is directed to the direction in which the triac element 242 is turned on via the door bell 100, and the current flows in the interior of the door bell apparatus 200, that is, . Since no current flows to the control unit 250, the power required by the interface unit 220 can be supplied from the battery unit 260.

When the pressed state of the door bell switch 210 is released, that is, when the door bell switch 210 is in an off state, the current path passes through the interior of the door bell unit 200, 250). To this end, the switching circuit 240 may further include a rectifier 244. The rectifier 244 is connected to the controller 250. The rectifier 244 rectifies the AC current supplied from the power input unit 230 to a DC current and supplies the rectified DC current to the controller 250. [ At this time, the rectifier 244 may include, for example, a bridge diode. A bridge diode is a bridge circuit that connects four diodes. The bridge diode rectifies AC current to DC current and outputs it.

The control unit 250 receives the DC current rectified by the rectifier 244. The control unit 250 may include a converter and a battery charging chip. The converter may serve to lower the DC current output through the rectifier 244 to a voltage for the battery charging chip. Here, the converter may be a DC-DC converter. For example, the converter can convert a voltage of 8 to 24V to a voltage of 5V.

The battery charging chip is connected to the converter, and receives a predetermined voltage from the converter. The battery charging chip may control the power supply to the interface unit 220 or may control the battery unit 260 to charge the power. The battery charging chip may control the battery unit 260 to supply the electric power charged in the battery unit 260 to the interface unit 220. [ The battery charger chip can be mixed with BMIC (Battery Management IC).

According to an embodiment of the present invention, the door bell system 30 further includes a bypass device 300 connected to both ends of the door bell 100. The bypass device 300 is connected to both ends of the door bell 100 in parallel. At this time, the bypass apparatus 300 serves as a resistor, and the current flowing from the power input unit 230 can be branched to both the door bell 100 and the bypass apparatus 300. The current flowing from the power input unit 230 to the door bell apparatus 200 is transmitted to the door bell 100 and the bypass apparatus 300 at all times, for example, when the door bell switch 210 is turned off. So that the overcurrent does not flow through the door bell 100, thereby preventing the door bell 100 from malfunctioning.

In contrast, when the door bell switch 210 is turned on, the bypass device 300 connected in parallel to both ends of the door bell 100 is turned off. Thus, the path of current to the control unit 250 of the door bell apparatus 200 can be shut off.

For this purpose, the bypass apparatus 300 according to an embodiment of the present invention can control the bypass apparatus 300 using the voltages applied to both ends of the door bell 100.

6 is a schematic diagram of a bypass apparatus according to an embodiment of the present invention.

Referring to FIG. 6, both nodes A and B of the bypass apparatus 300 are connected to both ends of the door bell 100 as shown in FIG.

The bypass device 300 is connected in series with a rectifying part 310 and a rectifying part 310 for rectifying a voltage across both ends of the door bell 100. When the voltage output from the rectifying part 310 is higher than a reference voltage, A first switch 320 which is turned off when the voltage is lower than a reference voltage and a second switch 320 which is connected in parallel to both ends of the door bell 100 and is turned off when the first switch 320 is turned on, And a second switch 330 that is turned on when the second switch 330 is turned on.

One end of the second switch 330 is connected to the input node A at both ends of the door bell 100 and the other end of the second switch 330 is connected in series to one end of the resistance portion 340. The other end of the resistance portion 340 And may be connected to the output node B at both ends of the door bell 100. [ Here, the resistor unit 340 exemplifies the parallel connection of the plurality of resistors R1, R2, R3, R4, and R5, but is not limited thereto.

The rectifying unit 310 may be connected in parallel to both ends of the resistor unit 340 and the AC voltage applied to both ends of the resistor 340 may be rectified through the rectifying unit 310.

When the door bell switch 210 is turned off at all times, the second switch 330 may be set to be turned on. Accordingly, the current supplied from the power input unit 230 can be supplied to the interface unit 210 through the bypass device 300. [

According to one embodiment of the present invention, when the door bell switch 210 is turned off and when the door bell switch 210 is turned on, voltages applied to both ends of the resistance portion 340 are different, The voltage output from the power supply 310 is different. For example, when the door bell switch 210 is turned off, the voltage applied from the power input unit 230 flows to the door bell unit 200 through the door bell 100, A closed circuit is formed around the power input unit 230 and the door bell 100. [ Accordingly, when the door bell switch 210 is turned on, the voltage across both ends of the resistance portion 340 becomes larger than when the door bell switch 210 is turned off.

Accordingly, when the voltage output from the rectifying unit 310 is equal to or higher than the reference voltage, the door bell switch 210 is turned on, so that the second switch 330 is turned off, If the voltage output from the rectifier 310 is lower than the reference voltage, the door bell switch 210 is turned off. Therefore, the second switch 330 is turned on, The current flows through the path device 300. [

At this time, the second switch 330 may be controlled by the first switch 320. For example, when the first switch 320 outputs the first control signal, the second switch 330 is turned on, and when the first switch 320 outputs the second control signal, the second switch 330 is turned on, Can be turned off.

Here, the first control signal may be a turn-off signal of the first switch 320, and the second control signal may be a turn-on signal of the first switch 320. [ For this, the first switch 320 may be turned on when a value equal to or higher than a predetermined voltage is input, and turned off when a voltage lower than a predetermined voltage is input. The first switch 320 may be, for example, a photo triac, but the present invention is not limited thereto. The first switch 320 may be any device that is turned on or off according to an input voltage value. Here, the voltage distributor 350 may further be disposed between the rectifying unit 310 and the first switch 320. The voltage divider 350 may be a resistor R6 and a resistor R7 connected in series and may be branched from a node between the resistor R6 and the resistor R7 so that the first switch 320 is connected . Accordingly, the first switch 320 can be turned on at a low reference voltage, for example, about 1.2V. And may further include voltage dividers R8 and R9 for lowering the reference voltage for turning on the first switch 320. [

Here, the second switch element 330 may be a triac element. The second switch element 330 may be set to be turned on at all times in the direction from T1 to T2. When the first switch element 320 is turned on and a predetermined voltage is applied to the gate electrode of the second switch element 330, the second switch element 330 may be set to be turned off. To this end, one of the two main electrodes P1 of the phototriacs included in the first switch element 320 and one of the two main electrodes of the triac element included in the second switch element 330 And the other one of the two main electrodes of the phototriac included in the first switch element 320 is connected to the gate electrode of the triac element included in the second switch element 330 G and a resistor R11 may be connected between the node between P2 and G and the electrode T2 of the triac element included in the second switch element 330. [ The resistance value of the resistor R11 may be set to be 10 times or more, preferably 100 times or more, more than the resistance value of the resistor R10. For example, the resistor R11 may be set to 200 ohms, and the resistor R10 may be set to 0 ohms. When the first switch element 320 is turned on and a predetermined voltage is applied to the gate electrode of the second switch element 330, the resistor R1, the second switch element 330, and the first switch element 320 are turned on, The second switch element 330 is turned off. As a result, the path from one electrode T1 of the second switch element 330 to the other electrode T2 is blocked.

When the door bell switch 210 is depressed, the door bell 100 sounds after the closed circuit is formed with respect to the power input unit 230, the door bell 100 and the triac element 242 of the switching circuit 240 It takes a predetermined time, for example, about 150 ms, for outputting. Accordingly, the second switch 330 needs to be turned off for a predetermined time. According to one embodiment of the present invention, the turn-off time of the second switch 330 can be maintained using a capacitor.

A plurality of capacitors C1, C2, C3 and C4 may be connected between the rectifying unit 310 and the first switch 320. A plurality of capacitors C1 , C2, C3, C4) can be charged. When the charges charged in the plurality of capacitors C1, C2, C3, and C4 are consumed after the second switch 330 is turned off, a voltage lower than the reference voltage is again applied to the first switch 320 . When a voltage lower than the reference voltage is applied to the first switch 320, the first switch 320 is turned off again, and thus the second switch 330 is turned on.

In this manner, it is possible to adjust the time for which the second switch 330 is kept turned off by using the capacitances of the plurality of capacitors C1, C2, C3, and C4.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

Claims (15)

A rectifying section for rectifying a voltage applied to both ends of the door bell,
A first switch connected in series to the rectifying part and turned on when the voltage output from the rectifying part is higher than a reference voltage and turned off when the voltage is lower than the reference voltage,
A second switch which is connected in parallel between both ends of the door bell and is turned off when the first switch is turned on and turned on when the second switch is turned off,
. The method according to claim 1,
And a capacitor disposed between the rectifying unit and the first switch,
Wherein a time period during which the second switch is turned off is controlled by a capacitance of the capacitor. The method according to claim 1,
And a resistance portion connected in parallel between both ends of the door bell,
And the rectifying section is connected in parallel to both ends of the resistor section. The method of claim 3,
Wherein one end of the second switch is connected to one end of the door bell, one end of the resistor is connected to the other end of the door bell, and the other end of the second switch is connected to the other end of the resistor. 5. The method of claim 4,
Wherein when the second switch is turned off, a path of a current flowing between one end of the door bell and the other end of the door bell is blocked. The method of claim 3,
Wherein the resistor section includes a plurality of resistors connected in parallel. The method according to claim 1,
And a voltage distributor disposed between the rectifying section and the first switch,
Wherein the voltage input to the first switch is a voltage divided by the voltage divider. The method according to claim 1,
Wherein the first switch comprises a phototriac, and the second switch comprises a triac element. 9. The method of claim 8,
The first main electrode of the phototriac is connected to the first main electrode of the triac element,
The second main electrode of the phototriac is connected to the gate electrode of the triac element,
Wherein a first resistor is connected between a node between the second main electrode of the phototriac and the gate electrode of the triac element and a second main electrode of the triac element. 10. The method of claim 9,
A second resistor is further connected between the first main electrode of the phototriac and the first main electrode of the triac element,
Wherein the resistance value of the first resistor is at least 100 times the resistance value of the second resistor. The method according to claim 1,
Wherein the rectifying unit includes a bridge diode. The method according to claim 1,
And the second switch is turned on when the door bell switch is turned off. Power input unit,
An interface unit for receiving power from the power input unit,
And a bypass device connected to both ends of the door bell,
When the door bell switch is turned off, a current from the power input unit to the interface unit branches to the door bell and the bypass unit. When the door bell switch is turned on, the current flowing through the bypass unit Blocked,
The bypass device
A rectifying section for rectifying a voltage across both ends of the door bell,
A first switch connected in series to the rectifying part and turned on when the voltage output from the rectifying part is higher than a reference voltage and turned off when the voltage is lower than the reference voltage,
A second switch which is connected in parallel between both ends of the door bell and is turned off when the first switch is turned on and turned on when the second switch is turned off,
The door bell system comprising: 14. The method of claim 13,
Wherein the interface unit includes a camera. 14. The method of claim 13,
Wherein the voltage applied to the rectifying part when the door bell switch is turned on is higher than the voltage applied to the rectifying part when the door bell switch is turned off.

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