KR101012303B1 - Automatic Control Circuit of Sleeping Lamp for Ceiling Light - Google Patents

Abstract

The present invention relates to a ceiling-mounted lamp (Lc) consisting of a headlight and a sleeping lamp, according to the present invention, the transformer 110 for receiving a high-voltage commercial AC power input and converting it to low pressure; Rectification and smoothing unit 120 for rectifying and smoothing the AC power to convert the operating voltage of the load; Battery rectifier 130 for rectifying the low-voltage AC power converted by the transformer 110; A charging battery 140 charged by the rectified DC current; When the main power is applied, the power supply to the sleep light (Ls) is interrupted and the current is charged to the charging battery 140, and when the main power is not applied, the current charging of the charging battery 140 is performed. At the same time the DC relay 150 for discharging and supplying the charging power of the charging battery 140 to the bedlight (Ls); An illumination sensor 160 for controlling on / off of the charging power applied to the sleeping light according to the ambient light; It is composed of a sleeping light (Ls) operating by the charging power, there is an advantage that can automatically flash the sleeping light according to the main light and the ambient brightness.

Ceiling lamp, main lamp, main lamp, sleeping lamp, automatic control, charging circuit, rechargeable battery, discharge

Description

Automatic control circuit of sleeping lamp attached to the headlight of ceiling direct lighting lamp {Automatic Control Circuit of Sleeping Lamp for Ceiling Light}

The present invention relates to a ceiling-mounted lamp (Lc) consisting of a headlight and a bed lamp, the same commercial AC power input, in particular, when the lamp is turned on in the ceiling lamp automatically turns off the bedlight and automatically turns off when the headlight is turned off Turn on the lights, but turn them on only when the headlights are below the set illuminance after sunset, so that they can be turned on or off automatically according to the blinking state of the headlights and the ambient light without the need to operate the lights separately. Therefore, the present invention relates to an automatic control circuit of a sleeping lamp provided in parallel with a lamp, such as a ceiling lamp, suitable for providing a user with convenience of handling and use.

In general, indoor lighting is a ceiling lamp equipped with a sleeping light used for sleeping in addition to the headlight used for indoor lighting.

In the case of the conventional ceiling-mounted lamp equipped with the headlights and the sleeping light was performed by a separate switch operation to turn on or off the sleeping light, there were many inconveniences in use.

In addition, even when daytime unnecessary lighting of the night light is unnecessary, the night light is often inadvertently turned on by the user, which is considered a waste of energy.

On the other hand, although the Utility Model Publication No. 1999-3631 discloses a plug-in type automatic sleeping light, the published Utility Model Publication No. 1999-3631 is an automatic sleeping lamp of the plug-in type that can be used with the lamp The plug-in type automatic sleeping lamp disclosed in the Korean Utility Model Publication No. 1999-3631 is a head lamp, which is not a sleeping lamp (that can be used for direct ceiling lighting), but is directly attached to a wall and emits light by commercial AC power. This is not a technology that can blink according to whether or not the commercial AC power is applied, and also because there is a problem causing unnecessary power wasted because commercial AC power is used immediately.

The present invention was created to solve the problems of the prior art as described above, and the purpose of the automatic control circuit of a sleeping lamp, which is attached to the ceiling lamp of the ceiling lamp according to the present invention, is automatically sleeping when the lamp is turned on in the ceiling lamp. When the lamp is turned off and the lamp is turned off, the lamp is automatically turned on, but even when the lamp is turned off, the lamp should be turned on only when it is below the set illumination level after sunset. The present invention provides an automatic control circuit for sleeping lamps attached to the headlights of ceiling lamps that can be turned on or off automatically in accordance with the illuminance of the lamps so as to provide the convenience of handling and use to the user.

Another purpose of the automatic control circuit of a sleeping lamp, which is installed in the lamp of the ceiling lamp according to the present invention, is a charging power source charged using a commercial AC power supply to which a power source for emitting a sleeping lamp is applied to a lamp, not a commercial AC power source. The present invention provides an automatic control circuit of a sleeping lamp installed in a ceiling lamp of a ceiling lamp suitable for realizing energy savings by allowing the sleeping lamp to emit light.

In order to achieve the above object, the automatic control circuit of the sleeping lamp provided in the lamp of the ceiling directing lamp of the present invention is a ceiling lamp including a lamp and a sleeping lamp into which the same commercial AC power is input. It is an automatic control circuit of sleeping lamps attached to the lamps of the ceiling lamps for automatically controlling the sleeping lamps depending on whether or not it is applied and ambient brightness, and the high voltage inputted to the lamp by switching on the main switch of the ceiling lamps. A transformer for receiving commercial AC power and converting the power into a low voltage power source; Rectification and smoothing unit for rectifying and smoothing the low-voltage AC power converted by the transformer to a DC power for use as the operating voltage of the load; A battery rectifier for rectifying the low voltage AC power converted by the transformer for use as a battery charging current; A charge battery charged by the DC current rectified by the battery rectifier; When DC power is applied from the rectifying and smoothing unit, the movable contact is switched to the first fixed contact to cut off the power supply to the sleeping light and to control the charging of the current to the rechargeable battery. When DC power is not applied from the smoothing unit, the movable contact is switched to the second fixed contact connected to the common node of the battery rectifying unit and the charging battery, thereby terminating current charging to the charging battery and simultaneously charging the charging battery. DC relay for supplying power to the bedlight (DC Relay); An illuminance sensor connected between the DC relay and the sleeping lamp to control on / off of the charging power of the rechargeable battery applied to the sleeping lamp according to the ambient illuminance; And a sleeping lamp operated by a charging power source of the rechargeable battery based on the on-off control of the illuminance sensor.

The automatic control circuit of the sleeping lamp provided in parallel with the ceiling lamp of the present invention having the above configuration has the following effects.

First, when the lamp is turned on by the ceiling lamp, the lamp is turned off automatically, and when the lamp is turned off, the lamp is turned on automatically. However, even when the lamp is turned off, the lamp is turned on only when the lamp is below the set illumination level after sunset. It is possible to provide convenience of handling and use to the user by automatically turning on or off according to the blinking state of the lamp and ambient light without the need of operating the sleeping lamp.

Second, the power to emit the sleeping light is supplied from the charging power charged using the commercial AC power applied to the main lamp, not the commercial AC power, thereby saving energy.

Next, the present invention will be described in detail with reference to the accompanying drawings, which is a preferred embodiment of an automatic control circuit of a sleeping lamp provided in parallel with a ceiling lamp of the present invention.

1 shows a state diagram of a sleep lamp in which an automatic control circuit according to the present invention is implemented, and FIG. 2 shows details of an automatic control circuit of a sleep lamp in parallel to a lamp of a ceiling lamp according to an embodiment of the present invention. A circuit diagram is shown.

First, as illustrated in FIG. 1, a product in which an automatic control circuit of a sleeping lamp according to the present invention is implemented is switched on and off by a main switch SWm embedded in a wall, and a main lamp Lm into which the same commercial AC power is input. It relates to a ceiling directing lamp (Lc) consisting of and a sleeping light (Ls).

As shown in FIG. 2, an automatic control circuit of a sleeping lamp provided in a ceiling lamp of a ceiling lamp according to an embodiment of the present invention includes a lighting lamp Lm and a sleeping lamp Ls to which the same commercial AC power is input. In the ceiling directing lamp (Lc) is a circuit for automatically controlling the sleep lamp (Ls) according to whether or not the commercial AC power is applied to the main lamp (Lm) and the ambient brightness, rectifying and smoothing the transformer 110 The unit 120, the battery rectifying unit 130, the charging battery 140, DC relay (DC Relay) 150, illuminance detection unit 160 and the sleep lamp (Ls) is characterized in that it comprises a.

The transformer 110 is configured to receive a high-voltage commercial AC power input to the main lamp (Lm) by switching on the main switch (SWm) of the ceiling lamp (Lc) to convert to a low-voltage power supply.

The rectifying and smoothing unit 120 rectifies and smoothes the low-voltage AC power converted by the transformer 110 and converts it into a DC power source for use as an operating voltage of the load.

The rectifying and smoothing unit 120 includes, for example, a rectifying diode D1 for rectifying AC and a smoothing capacitor C1 for removing a ripple component and stabilizing voltage.

The battery rectifying unit 130 is connected in parallel with the rectifying and smoothing unit 120, and is configured to rectify the low voltage AC power converted by the transformer 110 to use as a battery charging current. The battery rectifying unit 130 may be configured as, for example, a rectifying diode D2.

The rechargeable battery 140 is charged by the DC current rectified by the battery rectifying unit 130 only when the main switch SWm is switched on and the commercial AC power is input to the main lamp Lm, and the main switch SWm is switched on. Is switched off and discharged to the sleeping lamp Ls only when the commercial AC power is not input to the main lamp to serve as a power supply of the sleeping lamp Ls.

The rechargeable battery 140 is supplied at 3.3V to 3.6V when fully charged to supply power to the sleeping lamp Ls.

When the DC relay 150 is applied with a DC power supply from the rectifying and smoothing unit 120 (that is, the main AC switch SWm is switched on, the commercial AC power applied to the lamp Lm is input). When the movable contact (Rc) is switched to the first fixed contact (Ra) by controlling the power supply to the sleep light (Ls) and at the same time the current charging to the charging battery (140) is controlled, When DC power is not applied from the rectifying and smoothing unit 120 (that is, when the AC switch is not applied because the main switch SWm is switched off), the movable contact Rc is connected to the battery rectifying unit 130. Switching operation to the second fixed contact Rb connected to the common node N1 of the charging battery 140 terminates current charging to the charging battery 140 and at the same time turns off the charging power of the charging battery 140. To perform the switching control operation .

The second fixed contact Rb of the DC relay 150, the output terminal of the battery rectifying unit 130, and the charging battery 140 are connected by a common node N1.

The illuminance detecting unit 160 is connected between the DC relay 150 and the sleeping lamp Ls, and controls the on / off charging power of the charging battery 140 applied to the sleeping lamp according to the ambient illuminance. Perform.

The sleep lamp Ls emits light by operating by the charging power of the charging battery 140 based on the on / off control of the illuminance sensor.

In addition, the sleeping light Ls is characterized in that it is composed of a light emitting diode (LED), which does not require a large power consumption has the advantage of saving energy.

The configuration of reference numeral 101, which is not described, is an element for protecting the internal circuit by cutting off the overcurrent as the fuse 101.

In addition, in the automatic control circuit of the sleep lamp, such as a ceiling lamp, according to an embodiment of the present invention, the illuminance detection unit 160 is connected to the DC relay 150, the peripheral illuminance Therefore, the on-off supply of the charging power of the charging battery to the sleep light (Ls) according to the internal resistance value of the CDS element 161 and the CDS element 161 connected to the CDS element 161 is variable. And a transistor 162 for amplifying and supplying an applied current.

R1 and R2 shown in FIG. 2 are voltage distribution resistors, R3, R4 and R5 are collector resistors of transistors, and reference numeral D3 is a backflow prevention diode.

Next, a description will be given of the operation of the automatic control circuit of the sleeping lamp provided in parallel with the ceiling lamp of the present invention having the configuration as described above.

First, when the main switch SWm is switched on and the commercial AC power is input to the ceiling direct light Lc, the main lamp Lm is turned on, and a DC current flows through the relay coil of the DC relay 150 so that the movable contact Rc. The switching operation is performed on the first fixed contact Ra.

As described above, when the movable contact Rc of the DC relay 150 switches to the first fixed contact Ra, the power supply to the sleeping light Ls is cut off so that the sleeping light Ls is turned off, and at the same time, the charging battery Charging to 140 is started.

On the other hand, if the main switch (SWm) is switched on and commercial AC power is not input to the ceiling direct light (Lc), the main lamp (Lm) is turned off, DC current does not flow through the relay coil of the DC relay 150, the movable contact (Rc) ) Returns to the initial position and switches to the second fixed contact Rb.

As described above, when the movable contact Rc of the DC relay 150 returns to the second fixed contact Rb, the current charging to the charge battery 140 is terminated, and at the same time, the charge battery 140 and the sleep light Ls are Connected to the rechargeable battery 140 is discharged to the bed lamp (Ls), the bed lamp (Ls) is to emit light.

Therefore, the sleeping lamp Ls is turned on by the charging battery 140, not by the commercial AC power source that is the main power source.

At this time, for example, when the illuminance is bright, such as before sunset, even if the main switch SWm is switched on and the commercial AC power is not input to the lamp Lm, the sleep light Ls is operated by the operation of the illuminance detector 160. Will be turned off.

That is, for example, when the illuminance is bright, such as before sunset, the base voltage (bias current) of the transistor 162 decreases due to the change in the resistance value of the CDS element 161 so that the current does not flow to the sleep lamp Ls. (Ls) does not emit light.

On the contrary, when the illuminance is dark, such as after sunset, the base current (bias current) of the transistor 162 increases due to the change in the resistance value of the CDS element 161, and then the current is amplified so that the current flows to the sleeping lamp Ls. The sleep lamp Ls emits light.

In addition, the on / off of the transistor 162 may be determined according to the CDS element 161 and the distribution resistors R1 and R2.

The above embodiments of the present invention are merely one embodiment of the technical idea of the present invention, and of course, other modifications can be made within the technical idea of the present invention by those skilled in the art.

1 is a diagram showing a state of use of a sleeping lamp in which an automatic control circuit according to the present invention is implemented.

FIG. 2 is a detailed circuit diagram of an automatic control circuit of a sleeping lamp provided in parallel with a ceiling lamp of a ceiling lamp according to an embodiment of the present invention.

          Explanation of symbols on the main parts of the drawings

Lm: Headlight Ls: Sleep light

Lc: Ceiling light SWm: Main switch

110: transformer 120: rectification and smoothing

130: battery rectifier 140: rechargeable battery

150: DC relay Ra: first fixed contact

Rb: 2nd fixed contact point Rc: movable contact point

160: illuminance detection unit 161: CDS element

162 transistor

Claims (3)

In a ceiling-mounted lamp (Lc) consisting of a main lamp (Lm) and a sleeping lamp (Ls) to which the same commercial AC power is input, whether the commercial AC power is applied to the main lamp (Lm) or not depending on the ambient brightness (Ls) As an automatic control circuit such as the sleeping lamp attached to the headlights such as ceiling direct lamps to automatically control) A transformer 110 which receives a high-voltage commercial AC power input to the main lamp Lm by switching on the main switch SWm of the ceiling directing lamp Lc and converts it into a low-voltage power source; Rectification and smoothing unit 120 for rectifying and smoothing the low-voltage AC power converted by the transformer 110 to a DC power for use as the operating voltage of the load A battery rectifier 130 for rectifying the low voltage AC power converted by the transformer 110 to use the battery charging current; A charge battery 140 charged by the DC current rectified by the battery rectifier 130; When DC power is applied from the rectifying and smoothing unit 120, the movable contact Rc switches to the first fixed contact Ra to cut off the power supply to the sleep light Ls and at the same time the charging battery ( When the DC power is not applied from the rectifying and smoothing unit 120, the movable contact Rc is a common node of the battery rectifying unit 130 and the charging battery 140. Switching operation to the second fixed contact Rb connected to N1) terminates the current charging to the charging battery 140 and at the same time the DC relay supplying the charging power of the charging battery 140 to the sleep lamp (Ls) (DC Relay) 150; An illumination sensor 160 connected between the DC relay 150 and the sleeping lamp Ls to control on / off of the charging power of the rechargeable battery 140 applied to the sleeping lamp according to peripheral illumination; And Automatic control of the sleeping light installed in parallel with the ceiling lamp, characterized in that it comprises a sleeping light (Ls) operating by the charging power of the charging battery 140 on the basis of the on-off control of the illuminance detection unit. Circuit. The method according to claim 1, The illuminance detecting unit 160, A CDS element 161 connected to the DC relay 150 and having an internal resistance varying according to ambient illumination; And a transistor 162 connected to the CDS element 161 to turn on the charging power supply of the rechargeable battery to the sleep light Ls according to the internal resistance of the CDS element 161. Automatic control circuit such as sleeping lights attached to the headlights such as ceiling directing to say. The method according to claim 2, The sleep lamp (Ls) is an automatic control circuit of the sleep lamp provided in parallel with the main lamp of the ceiling lamp, characterized in that consisting of LED.

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