KR20140024583A - Control box to manage power - Google Patents

Abstract

The present invention relates to a control box for managing indoor power and, more specifically, to a control box for managing indoor power capable of controlling a socket and lighting equipment mounted in a room, controlling power supply by detecting whether or not the socket is in a state of standby power or whether there is an electrical leakage current, reducing unnecessary energy waste and preventing an electrical accident. The control box for managing indoor power according to the present invention comprises a socket control part for controlling power supply to a socket mounted on the periphery; a lighting control part for controlling the on/off of lighting equipment mounted on the periphery; a standby power detection part for detecting standby power of the socket; an electrical leakage current detection part for detecting an electrical leakage current leaked through the socket; an input part for receiving a command signal of a user; and a micom for receiving the standby power of the standby power detection part, the electrical leakage current of the electrical leakage current detection part and the command signal of the input part to control the socket control part and the lighting control part. [Reference numerals] (51) Normal//Sleep mode; (53) Load on/off; (55) Power on

Description

Control box for indoor power management

The present invention relates to a control box for managing indoor power, and more particularly, to control the outlet and lighting fixtures provided in the room, and to detect whether the outlet is in standby power state or leakage current and accordingly The present invention relates to a control box for indoor power management that controls the supply of energy to reduce unnecessary energy waste and prevents electrical accidents.

Most of the power supplied to the interior of a house, apartment, school, building, etc. is used for home appliances that are connected to the lighting fixtures and the outlet provided in the room.

And the luminaire is controlled through a light switch installed on the wall of the room, the outlet is generally not provided with a separate control means, there is provided a power switch for controlling the power supply to some outlets.

In this way, the power management of the lighting fixtures and the outlets that occupy most of the indoor power are separate, that is, the lighting fixtures are through the light switch, and the outlets are directly disconnected or the power switch is turned off. This can be quite cumbersome.

So, as a prior art, Korean Patent No. 0869047 "Switch for Multi-Function Room Management System" has a light switch for turning on and off a luminaire in one switch box and a power switch for turning on and off the power supply of an outlet. And control both outlets.

However, the Patent No. 0869047 "Switch for Multi-Function Room Management System" has a function of simply turning on and off the lighting fixture and turning on and off the outlet, so that the user is not connected to the outlet unless the power switch for the outlet is turned off. There is no special power management function such as detecting standby power consumption, overloading or leakage current through home appliances, and taking measures accordingly.

The present invention has been made to solve the problem of the control box for indoor power management according to the prior art as described above, not only to turn on and off the lighting fixtures and outlets that occupy most of the indoor power use, but also to detect the standby power of the outlet To detect and cut off leakage current, to adjust the brightness of lighting fixtures in stages, to receive information on the amount of power consumption from the electricity meter, to inform when the contract power is exceeded, to check the operating status The control LED at night allows the control box to be lit only when there is a person nearby, preventing power consumption and preventing the user from going to bed. Its purpose is to provide a control box for.

Control box for indoor power management according to the present invention for achieving the above object

Outlet control unit for controlling the power supply to the outlet provided in the periphery;

Lighting control unit for controlling the lighting of the lighting fixtures provided around;

Standby power detection unit for detecting the standby power of the outlet;

Leakage current sensing unit for sensing the leakage current flowing through the outlet;

An input unit for receiving a command signal of a user;

And a microcomputer for controlling the outlet control unit and the lighting control unit by receiving the standby power of the standby power detection unit, the leakage current detection unit leakage current, and a command signal of the input unit.

A display unit connected to the microcomputer and showing information on a use state;

And a wireless communication module configured to wirelessly communicate with a watt-hour meter to receive information on power consumption and transmit the information to the microcomputer.

An indicator LED for indicating an operating state;

Further comprising: a human body sensor for detecting the presence of the user,

The microcomputer illuminates the display LED when the human body is detected by the human body sensor, and turns off the display LED when the human body is not detected for a predetermined time.

The microcomputer separates and extracts a resistive leakage current from the leakage current sensed by the leakage current detection unit to determine whether there is leakage.

The lighting control unit is characterized in that to adjust the illuminance of the lighting fixture in stages by the control of the microcomputer.

Control box for indoor power management according to the present invention having such a configuration controls the on and off of the lighting fixture and the outlet provided in the room from the control box, and the unused home appliances are connected to the outlet, unnecessary standby power When power is being consumed or leakage current occurs, the power supply is cut off to save energy and prevent electric accidents, and the brightness of the luminaire can be adjusted step-by-step through the control box. In case of excessive use, it informs the user to urge attention, displays the operation status and indicates the position of the control box in the dark so that the indicator LED turns on only when there is a user nearby, saving unnecessary energy and at night When the user goes to bed, the LED light turns on sensitive users As a control box for indoor power management features are combined with a variety of offers to increase the efficiency of the indoor power management to avoid the sun, it is a very useful invention in the industry.

1 is a block diagram of a control box for indoor power management according to the present invention.
2 a, b is a perspective view of the PCB assembly in accordance with the present invention.
3 is a perspective view of a connector according to the present invention;

Hereinafter, a control box for indoor power management according to the present invention will be described in more detail with reference to the accompanying drawings.

As shown in the figure, the control box (B) for indoor power management according to the present invention includes an outlet control unit (10, 10A), lighting control unit (20, 20A), standby power detection unit 30, leakage current detection unit 40 , An input unit 50, an output unit 60, a wireless communication module 70, a human body sensor 80, and a microcomputer U1.

The outlet control unit (10, 10A) is to control the power supply to each outlet provided in the room,

It is connected to each outlet and is provided on the power line to supply commercial power so that the power line can be opened or shorted so that the commercial power can be supplied to or disconnected from the outlet. )Wow,

It is provided on the power line connected to the outlet, and when a problem such as the standby power state, leakage current generation, overload condition occurs on and off under the control of the microcomputer (U1) is cut off switch to supply or cut off the commercial power to the outlet ( RY1, RY2).

An electronic device such as a relay, a transistor, a thyristor, a triac, or the like may be used as the cutoff switches RY1 and RY2.

The lighting control unit (20, 20A) is to control the power supply to each lighting fixture provided in the room,

It is connected to each lighting fixture and is provided on the power line to supply commercial power so that the power line can be opened or shorted so that commercial power can be supplied to or cut off from the lighting fixture. -L2),

It is provided on the power line connected to the luminaire, and includes a dimming unit (21, 21A) for controlling the brightness of the luminaire by controlling the intensity of the current supplied to the luminaire under the control of the microcomputer (U1). Here, the dimming units 21 and 21A may turn off the luminaire by cutting off the current supplied to the luminaire.

The standby power detectors 30 and 30A measure the power load consumed through an outlet and transmit the measured power load to the microcomputer U1. When the microcomputer U1 is determined to be in the standby power state, the shutoff switches RY1 and RY2 are opened. Make sure that no power is output from the outlet. A current transformer CT may be used as the standby power detection units 30 and 30A.

The microcomputer U1 sounds an alarm sound through the buzzer 65 when the power consumption measured by the standby power detection units 30 and 30A (that is, the power supplied to the electrical and electronic products through an outlet) is overloaded. Or flashing through the display LED (63) to inform the user to prevent the occurrence of an electrical accident, and the measured power consumption is small because it is determined as standby power (that is, the electrical and electronic products connected to the outlet In the case where only standby power is consumed because it does not operate, standby power may be cut off by opening the power line by driving the cutoff switches RY1 and RY2.

The leakage current detection units 40 and 40A block and protect the output of power through an outlet when excessive leakage current is generated.

The leakage current detectors 40 and 40A include image current transformers 41 and 41A (ZCT), voltage detectors 42 and 42A, and synchronization signal generators 43 and 43A.

The image current transformers (41, 41A; ZCT) are installed in a power line to output commercial power input from the outside through an outlet, and detect a leakage current by a difference between an input and an output of a current in the power line.

The leakage current detected by the image current transformers 41 and 41A (ZCT) is amplified by an amplifier and then transmitted to the microcomputer U1.

The voltage detectors 42 and 42A detect the voltage of the external commercial power source input to the power line, and input the detected voltage to the synchronization signal generators 43 and 43A.

The synchronizing signal generators 43 and 43A generate a clock signal synchronizing signal having a synchronizing time based on the voltage detected by the voltage detecting units 42 and 42A, that is, when the phase of the AC power is reversed as a commercial power source. Transmit to microcomputer U1. That is, a clock-type synchronizing signal is generated when the polarity of the power supply voltage becomes positive (+) and becomes low (or high) when negative.

The microcomputer U1 is detected by the voltage detectors 42 and 42A in the leakage current Ig sensed and amplified by the image current transformers 41 and 41A; ZCT, and the synchronization signal generator 43 and 43A. The resistive leakage current (Igr) is separated and extracted using the synchronization signal generated and transmitted.

In the leakage current Ig, the resistive leakage current Igr is in phase with the power supply voltage, and the capacitive leakage current Igc is 90 degrees out of phase with the power supply voltage.

The clock signal synchronization signals generated and transmitted by the synchronization signal generators 43 and 43A have low and high values according to the phase of the power supply voltage.

In the period in which the polarity of the power supply voltage is positive, that is, the period in which the synchronization signal is low or high, the value of integrating the leakage current Ig is P as follows.

P = 2 · 2 ^ (1/2) · Ig · θθ; Is the phase angle between the power supply voltage and the leakage current Ig.

By the way, since Igr = Ig · cosθ, Igr is proportional to P.

In addition, a value obtained by integrating the leakage current Ig in a period in which the polarity of the power supply voltage is negative, that is, a period in which the synchronization signal is high or low is Q.

Q = -2 · 2 ^ (1/2) Igcosθ

In this case also, Igr = Ig · cosθ, so Igr is proportional to the absolute value of Q.

Accordingly, it can be seen from the above calculation process that the resistive leakage current Igr can be detected by integrating the leakage current Ig during the half period of the power supply voltage.

Therefore, the microcomputer U1 half-wave integrates the leakage current Ig detected and transmitted by the image current transformer ZCT by using the synchronization signals transmitted by the synchronization signal generators 43 and 43A to resistive leakage current Igr. ) Is detected by separate extraction.

In addition, when the size of the separated and extracted resistive leakage current Igr exceeds a reference value (for example, 5 mA), the microcomputer U1 is the output unit 60 through the display LED 63 or / and the buzzer 65. Inform the user.

The display LED 63 blinks or lights in a specific color, and the buzzer 65 emits a warning sound to notify the user.

When the resistive leakage current Igr separated and extracted by the microcomputer U1 deviates from the reference value, the shutoff switches RY1 and RY2 open a power line under the control of the microcomputer U1 to supply commercial power supplied from the outside. Block output from the outlet.

The input unit 50 receives a command signal according to a user's operation and transmits it to the microcomputer U1.

The input unit 50 that receives a user's command signal receives a command signal by a touch method, and as a command signal, a mode selection 51 for operating the control box B in a constant mode or a power saving mode, and a control box. Load on / off 53 for turning on or off the load connected to (B) (i.e., lighting fixtures and outlets), and returning when the shutoff switches RY1 and RY2 are opened for reasons such as standby power, leakage current, and overload. Power supply return 55 and the like.

As an input unit, there is a reset switch 50A that receives a command signal in a push manner rather than a touch method.

The output unit 60 informs the user of various situation information by visually and audibly, the display unit 61 visually displaying information on the use state, and a display LED indicating whether or not normal operation is performed by color or flashing. 63) and a buzzer 65 for outputting an alarm sound or a guidement through the sound.

The wireless communication module 70 wirelessly communicates with a power meter that integrates the total amount of power consumed in the room in which the control box B is installed, and receives information on the amount of power consumed from the power meter to the microcomputer U1.

The microcomputer U1 displays information on the display unit 61 when the amount of power consumed transmitted through the wireless communication module 70 exceeds a contracted power contracted with KEPCO or a set power set by the user. (E.g. 'eco') to give the user more attention to power management.

The human body sensor 80 detects whether a user is present in the vicinity and transmits it to the microcomputer U1.

As the human body detecting sensor 80 for detecting the presence of a user, an IR sensor for detecting heat emitted from a human body or an optical sensor for detecting whether light is emitted may be used.

If the microcomputer U1 does not indicate a problem occurrence situation (leakage current, overload, etc.) to the display LED 63, when the human body detection sensor 80 detects that the user is not in the vicinity, the display LED ( 63) is turned off to prevent unnecessary power consumption, and the user who is sensitive when going to bed at night is not disturbed by the light emitted from the display LED 63.

The microcomputer U1 controls the control box B of the present invention as a whole. That is, the command signal of the user input through the input unit 50 is processed, and the data sensed by the standby power detector 20 and the leakage current detector 40 are received and analyzed, and the analysis result is in the standby power state. Or when there is a leakage current, the blocking switches RY1 and RY2 are opened, and when the amount of power consumption received from the wireless communication module 70 exceeds the contract power, an indication indicating this is displayed on the display unit 61. It plays a role.

And the microcomputer (U1) is connected to a memory (1) for storing various programs and data necessary for the operation of the control box (B), and a variety of information generated during the operation, the power for converting the commercial power of the power line to DC power The driving power is supplied from the supply 3.

And the control box (B) of the present invention is a box-shaped housing (not shown), the input unit 50 and the output unit 60 provided on the front of the housing, the microcomputer (U1) built in the housing, the outlet control unit ( 10), the lighting control unit 20, standby power detection unit 30, leakage current detection unit 40, the wireless communication module 70, etc.,

Components provided inside the housing are made of various electronic devices mounted on the PCB.

At this time, if various components (U1, 10, 20, 30, 40, 70, etc.) are mounted together in one PCB, a large area of the PCB is required, and thus the volume of the housing is increased, and the signals between the components are Interference problems may occur.

Therefore, it is necessary to use a large number of PCBs to minimize the volume of the housing, so that there is no problem of interference between components. That is, it is necessary to use the PCB assembly 90.

2 shows the PCB assembly 90,

The PCB assembly 90 can be combined with the single-side PCB (double-side PCB) and double-side PCB (double-side PCB) and soldered connection to contribute to the high-density integration and miniaturization of PC products, while reducing the manufacturing cost, what Rather, when the two PCBs are soldered by using a flow soldering device, the PCB assembly adopts the shape of the diagonal connection in consideration of the transfer movement of the PCBs to the flux.

The PCB assembly 90 includes a first PC ratio 90A and a second PC ratio 90B which are coupled to each other and soldered thereto. In the figure, the first PCB 90A is a single-side PCB, and the second PCB 90B is a double-side PCB.

Various chips and devices are mounted in the first PC 90A, and coupling holes 91 are formed to couple the second PC 90B.

The second PC 90B is provided with a fitting portion 93 to be fitted into the coupling hole 91, and the fitting portion 93 electrically connects the first PC with the second PC ratio 25. ) Is provided.

The fitting portion 93 of the second PC 90B is composed of two coupling protrusions 93a and 93b, and two coupling holes 91 of the first PC 90A are correspondingly formed.

These coupling protrusions can contribute to the improvement of assembly convenience, productivity, and convenience of management by performing a coding function for each product type by changing some or all of the number, location and size of the protrusions as necessary.

The connection portion 95 of the second PC 90B may be made of a corroded copper sheet or the like, or may be made of a known lead-free (or flexible) paste material.

As can be seen in the enlarged one-dot chain line circle of FIG. 2B, each connection portion 95 has an oblique portion 95a below the main body 95A, and in particular, the oblique portion 95a has a substantially rectangular main body ( It is formed along the tail part 95b which was formed and led to the area | region beyond 95A).

This is used when the flow soldering equipment is used to electrically connect the first PC 90A and the second PC 90B to secure mass productivity and quality.

In the first and second PCBs 90A and 90B, which are cross-coupled with each other, the fitting portions 93 of the second PCBs 90B having a predetermined thickness and protruding to the lower surface of the first PCB 90A, in particular, the engaging projections ( 93a, 93b) the lower end of the connecting portion 95 that extends to the portion 93p (see in FIG. 2A [B] lower dashed line circle)

By the soldering flux in the situation of conveying [the first and second PCB 90A, 90B assembly]

The purpose of the present invention is to accurately connect the connection end of the circuit pattern formed on the bottom surface of the first hole 90A around the coupling hole 91.

As a result, the connection end of the circuit pattern (not shown) formed in the bottom surface of the coupling hole 91 around the first PC 90A and

Diagonal portions 95a formed along the tail portion 95b of the lower portion of the connecting portion 95 are

It is connected precisely and precisely by the gull | blade-shaped solder part 97 formed by the soldering flux.

As such, the slanted portion 95a of the second PCB 90B connecting portion 95 may be transferred to the soldering flux of the first and second PCB 90A and 90B assembly when the flow soldering equipment is used. The direction is taken into account.

Moreover, when the tail part 95b forms the diagonal part 95a in the connection part 95,

Considering the reality of the circuit part which increases the degree of integration by forming the gap between the wiring constituting the circuit pattern and the wiring as narrow as possible

Of the portions interconnected by the soldering flux (i.e., the connecting end of the circuit pattern and the oblique portion 95a of the connecting portion 95).

To make the width of the diagonal portion 95a of the connecting portion 95 as narrow as possible

The main purpose is to allow the soldering portion 97 to connect the connecting end of the circuit pattern and the diagonal portion 95a of the connecting portion 95 with accuracy and precision.

In addition, as shown in the comparison of the lower right one-dot chain line circle of Figure 2b,

Compared with the connection part 95D which formed the diagonal part which has the same section length without the tail part by the said tail part 95b,

The connecting portion 95 having the tail portion 95b of the present invention has a relatively small area.

As a result, the effect of preventing the waste of the material required can be obtained incidentally.

Figure 3 shows the connector 100 to which the communication cable body 101 for supporting data communication by connecting the PC to each other are coupled.

In the connector 100 used in the present invention, the communication cable body 101 is detachably coupled, and detachment is easily performed, and the structure is simple while solidifying the connection of the communication cable body 101, thereby significantly reducing the manufacturing cost. Has a structure.

The connector 100 includes a body 110 having a seating groove 111 in which the body 103 of the communication cable body 101 is inserted and seated and provided with connection pins 113 for connection. Both sides of the 110 are rotatably coupled inwards and outwards, respectively, and includes a catch 130 that hangs an upper end of the body 103 of the communication cable body 101.

On both sides of the connector 100 body 110, respectively

Facing each other at a distance and provided with two elastic plates 114 having elasticity,

The inner surface of the elastic plate 114 is formed with a locking groove 115 in the vertical direction,

The engaging groove 115 of the elastic plate 114 is formed with a through hole 116 penetrating the inner and outer sides,

Clogging parts 117 and 118 are formed at the inner side and the outer side between the two elastic plates 114.

And the catch 130 is coupled to both sides of the body 110

An insertion part 131 inserted between the two elastic plates 114;

Hinge protrusions 136 protruding from both side surfaces of the insertion part 131 and inserted into the through holes 116 and hinged to each other;

Protrudingly formed on both sides of the upper portion of the insertion portion 131 and disposed in the locking groove 115, the locking hole 130 is caught unintentionally by the inner wall (115a) and the outer wall (115b) of the locking groove 115 And locking projections 135 to prevent the user from flipping inwards and outwards, so that the user is not difficult to be flipped over,

Restriction protrusions protruding from the lower end and the inner side of the inserting portion 131 and limiting the inner and outer rotational range by preventing the latching holes 130 from being entangled further inside and outside by being caught by the blocking portions 117 and 118 ( 137, 138),

It is provided to protrude into the upper end of the insertion portion 131, and includes a hook coupling portion 139 is coupled to the upper end of the body 103 of the communication cable body (101).

The locking projection 135 has a circular shape, the diameter of which has a length close to the width of the locking groove 115, when the locking projection 130 is folded outwards the locking projection 135 is It is preferable to prevent the locking projection 135 from interfering with the elastic plate 114 so as not to deviate from the inner side of the latch 130 that is folded outward.

In the above description of the present invention, a control box for indoor power management having a specific shape and structure has been described with reference to the accompanying drawings. However, the present invention can be variously modified and changed by those skilled in the art. It should be interpreted as falling within the protection scope of the present invention.

B: control box 10: outlet control unit
20: lighting control unit 30: standby power detection unit
40: leakage current detection unit 50: input unit
60: output unit 70: wireless communication module
80: human body detection sensor 90: PCB assembly
100: Connector

Claims (4)

Outlet control unit for controlling the power supply to the outlet provided in the periphery;
Lighting control unit for controlling the lighting of the lighting fixtures provided around;
Standby power detection unit for detecting the standby power of the outlet;
Leakage current sensing unit for sensing the leakage current flowing through the outlet;
An input unit for receiving a command signal of a user;
And a microcomputer that receives the standby power of the standby power detection unit, the leakage current detection unit leakage current, and the command signal of the input unit to control the outlet control unit and the lighting control unit. The method of claim 1,
A display unit connected to the micom and showing information on a use state;
And a wireless communication module configured to wirelessly communicate with an electricity meter to receive information on the amount of power consumed, and transmit the information to the microcomputer. 3. The method according to claim 1 or 2,
An indicator LED for indicating an operating state;
Further comprising: a human body sensor for detecting the presence of the user,
The microcomputer control panel for indoor power management, characterized in that when the human body is detected by the human body detection sensor turns on the display LED, and if the human body is not detected for a predetermined time. The method of claim 3, wherein
The microcomputer separates and extracts a resistive leakage current from the leakage current sensed by the leakage current detection unit to determine whether there is leakage.
The lighting control unit is a control box for indoor power management, characterized in that for controlling the illumination of the lighting fixture in stages by the control of the microcomputer.

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