TWI448012B - Wall outlet architecture - Google Patents

Description

Wall socket architecture

The invention relates to a wall socket architecture.

How to improve the electricity efficiency of buildings and improve energy conservation and carbon reduction benefits is one of the current issues in the world. In addition to energy-saving equipment replacement and efficiency improvement, the building energy management system is currently the key development direction in the field of building energy conservation. The building energy management system can effectively control the traditional power consumption of buildings, and through the accurate analysis, forecasting calculation, and exchange mechanism of energy consumption information, to achieve the optimal scheduling of regional energy and the most economical use of electric energy. However, the electrical power management sockets on the market are difficult to spread to each outlet due to the interior decoration and aesthetic problems of the building, or due to price and type problems, resulting in the goal of low energy buildings not being achieved.

The present disclosure relates to a wall socket structure that can be embedded in a wall of a power lead of a building and allows an electrical device powered by the wall socket to provide power usage at any time for power management purposes.

According to a first aspect of the present disclosure, a wall socket structure is provided, including a circuit board, a socket, a plurality of contacts, a power measurement circuit, a communication module, and a non-isolated AC-DC converter. The board has a front side and a back side. The socket is disposed on the front side and is used to connect an electrical device. A plurality of contacts are disposed on the reverse side and are used to connect a live wire, a neutral wire and a ground wire to the socket. The power measuring circuit is disposed on the reverse side and is used for measuring and calculating the power usage status of the electrical device via the socket. The communication module is sleeved to the communication port of the power measuring circuit, and is disposed on the front side with respect to the power measuring circuit. The non-isolated AC-DC converter is used to provide a working power supply to the above components, and has a part of the components disposed on the front side, and other components are disposed on opposite sides.

In order to better understand the above and other aspects of the present disclosure, the following specific embodiments, together with the accompanying drawings, are described in detail below:

The wall socket structure proposed by the present disclosure can be embedded in the wall of the power lead of the building and enables the electrical device powered by the wall socket to provide power usage at any time for the purpose of power management.

Please refer to FIG. 1 to FIG. 3 simultaneously. FIG. 1 is a perspective view of a wall socket structure according to a first embodiment, and FIG. 2 is a front view of a circuit board structure according to a first embodiment. FIG. 3 is a cross-sectional view showing the circuit board of the wall socket structure according to the first embodiment. The wall socket structure 100 includes a circuit board 110, an outlet 120, a plurality of contacts 130, a power measuring circuit 140, a communication module 150, and a non-isolated AC DC. The converter 160, a power switch control circuit 170, a locking piece 180, and a cover 190.

Next, the overall space pattern of the wall socket structure 100 conforms to the UL-NEMA 5-15 specification as an example, but is not limited thereto. The circuit board 110 has a front side and a back side. The socket 120 is disposed on the front surface of the circuit board 110 and is used to connect an electrical device. The plurality of contacts 130 are disposed on the reverse side of the circuit board 110 and are used to connect a live wire, a neutral wire, and a ground wire to the socket 120. The power measurement circuit 140 is disposed on the reverse side of the circuit board 110 and is configured to measure and calculate the power usage status of the electrical device via the socket 120. The communication module 150 is sleeved to the communication port of the power measurement circuit 140 and disposed on the front side of the circuit board 110 with respect to the power measurement circuit 140.

The non-isolated AC-DC converter 160 is configured to provide a working power supply to the components, and has a partial component disposed on the front surface of the circuit board 110, and other components are disposed on opposite sides of the circuit board 110. The power switch control circuit 170 is electrically connected to the power measurement circuit 140 and is used to provide a switch control function of the electrical device, and has a partial component disposed on the front surface of the circuit board 110, and other components are disposed on opposite sides of the circuit board 110. . The power switch control circuit 170 essentially has a relay element.

It can be seen from FIG. 1 to FIG. 3 that the space-consuming components in the wall socket structure 100 include the socket 120, the communication module 150, and the non-isolated AC-DC converter 160 and the power switch control circuit 170. Components such as input capacitors, energy storage inductors, and relays are disposed on the front side of the circuit board 110. In contrast, other non-occupied components of the wall socket architecture 100 are disposed on the opposite side of the circuit board 110. As a result, the space occupied by the wall socket structure 100 can be compressed without being too large, so that the overall space pattern can conform to the UL-NEMA 5-15 specification.

The locking piece 180 in FIG. 1 is used for locking the connection between the circuit board 110 and the power line, and has a plurality of through holes so that the wall socket structure 100 can be fixed to the wall surface or fixed to one. The entire wall socket structure 100 is in one of the containers of the UL-NEMA 5-15 specification. Cover 190 is secured to receptacle 120 to cover wall receptacle architecture 100.

In addition, if the power switch control circuit 170 is omitted, the wall socket structure 100 can have two sockets and the overall space pattern still conforms to the UL-NEMA 5-15 specification, as shown in FIG. 4 to FIG. 6, FIG. FIG. 5 is a front view of a circuit board structure according to a second embodiment, and FIG. 6 is a front view of a circuit board structure according to a second embodiment. FIG. 6 is a front view of a circuit board according to a second embodiment. The reverse side configuration of the circuit board of the wall socket structure. The difference between the wall socket structure 200 and the wall socket structure 100 is that the power switch control circuit 170 is missing, and another socket 125 is disposed on the front side of the circuit board 110 for connecting another electrical device.

Please refer to FIG. 7 , which illustrates a circuit diagram of a non-isolated AC-DC converter according to an embodiment. The non-isolated AC-DC converter 160 is essentially a non-isolated Buck Converter architecture for global input voltage ranges (85 VAC to 265 VAC). The non-isolated AC-DC converter 160 includes a rectifying unit 162, a filtering unit 164, and a power processing stage circuit 166. The rectifying unit 162 is composed of a first diode D4 and a second diode D5 connected in reverse parallel to rectify an input voltage of one of the input stages.

The filtering unit 164 has a first inductor L1 connected in series with the first diode D4, a first capacitor C3 coupled to the first end of the first inductor L1 and the second diode D5, and coupled to the first capacitor C3. a second end of the inductor L1 and a second capacitor C4 of the second diode D5. The filtering unit 164 is configured to filter the rectified input voltage. The power processing stage circuit 166 is configured to obtain and output an output voltage VCC5 as an operating power source according to the output of the filtering unit 164.

The power processing stage circuit 166 is composed of, for example, a switching chip U6, a diode D7, an output inductor L2, and an output filter capacitor C32. The switch chip U6 can be supplemented with system-level overheating, output short circuit and control open circuit protection mechanism. The high frequency wide design provides fast start without overshoot. The current limiting design suppresses the ripple of the line voltage and the output is also Provide appropriate load regulation. In addition, the capacitor C31 causes the voltage across the two terminals to track the output voltage VCC5 via the diode D6, and the voltage dividing line composed of the resistors R21 and R20 detects and regulates the voltage of the capacitor C31, and the resistor R22 is a dummy load to make the capacitor There is no tracking error in C31.

The power measurement circuit 140 includes a voltage sensing circuit, a current sensing circuit, and a power measurement system integrated single chip. The voltage sensing circuit is configured to obtain a voltage measurement signal of the electrical device; the current sensing circuit is configured to obtain a current measurement signal of the electrical device. The power measurement system integrates a single chip to calculate the power usage of the electrical device based on the voltage measurement signal or the current measurement signal. In addition, the power measurement system integrates a single chip to control the operation of the entire system. The wall socket structure 100 further includes a backup battery circuit (not shown) connected to the power measurement system to integrate the single chip for use as a backup power source when the power supply is interrupted. In addition, the wall socket structure 100 can also include a non-volatile memory circuit for storing information related to the electrical condition of the electrical device.

The communication module 150 communicates with a remote management device in a wired manner or in a wireless manner. The remote management device is, for example, a personal computer, a notebook computer, a number of assistants, or a smart phone, and is not limited. The communication module 150 can be a low-power wireless module, such as a ZigBee module, a Zwave module, or a Bluetooth module, which can be implemented as a miniaturized module. In addition, the communication module 150 can also be a power line communication module, but the power line communication module usually needs to have a certain transmission power, and needs to extract communication signals from the power line, so the implementation will occupy a large space. Therefore, the communication module 150 adopts the implementation manner as shown in FIG. 8 to facilitate the connection of the wall socket structure in a limited space.

FIG. 8 is a diagram showing a connection interface of a communication module according to an embodiment. The communication module 150 includes a modulation unit 200, a digital analog converter 202, an amplifier 204, a coupling circuit 206, a filter circuit 208, an instantaneous voltage suppressor 210, an automatic gain controller 212, and an analog-to-digital conversion. The device 214, a filter 216 and a demodulation unit 218. The modulation unit 200 is connected to the power measurement system of the power measurement circuit 140 to integrate the communication of the single chip. The digital analog converter 202 is coupled to the modulation module 200. Amplifier 204 is coupled to digital analog converter 202.

The coupling circuit 206 is coupled to the amplifier 204 and is configured to capture power line communication signals that are loaded between the live and neutral lines. The filter circuit 208 is coupled to the coupling circuit 206 and is used to filter out noise. The transient voltage suppressor 210 is connected between the coupling circuit 206 and the filter circuit 208 and is used to protect the weak current system after the coupling circuit 206. Automatic gain controller 212 is coupled to coupling circuit 206. Analog to digital converter 214 is coupled to automatic gain controller 212. Filter 216 is coupled to analog digital converter 214. The demodulation unit 218 is coupled to the filter 216 to integrate the single chip communication with the power measurement system of the power measurement circuit 140.

The modulation unit 200 and the demodulation unit 218 can be modulated by amplitude Shift Keying (ASK), Frequency Shift Keying (FSK) or Code Shift Keying (CSK) modulation and demodulation power line. Communication signal to send and receive power line communication signals. The status of the power line communication signal is controlled by the power measurement system of the power measurement circuit 140. The energy consumption information is also processed by the power measurement system of the power measurement circuit 140.

The wall socket structure disclosed in the above embodiments can be embedded in a wall of a power lead of a building, and can be powered by an instant collection and network transmission of power information, so that the electrical device powered by the wall socket can be powered at any time. The situation is to achieve the purpose of electricity management.

In the above, the present invention has been disclosed in the above embodiments, but it is not intended to limit the present invention. A person skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

100, 200. . . Wall socket architecture

110. . . Circuit board

120, 125. . . socket

130. . . contact

140. . . Power measurement circuit

150. . . Communication module

160. . . Non-isolated AC-DC converter

162. . . Rectifier unit

164. . . Filter unit

166. . . Power processing stage circuit

170. . . Power switch control circuit

180. . . Locking piece

190. . . cover

200. . . Modulation unit

202. . . Digital analog converter

204. . . Amplifier

206. . . Coupling circuit

208. . . Filter circuit

210. . . Instantaneous voltage suppressor

212. . . Automatic gain controller

214. . . Analog digital converter

216. . . filter

218. . . Demodulation unit

D1~D7. . . Dipole

L1~L2. . . inductance

C1~C5, C31~C32. . . capacitance

U6. . . Switch chip

R20~R22. . . resistance

FIG. 1 is a perspective view of a wall socket structure according to a first embodiment.

2 is a front view of a circuit board of a wall socket structure according to a first embodiment.

FIG. 3 is a diagram showing the reverse configuration of the circuit board of the wall socket structure according to the first embodiment.

4 is a perspective view of a wall socket structure in accordance with a second embodiment.

FIG. 5 is a front view of a circuit board of a wall socket structure according to a second embodiment.

FIG. 6 is a diagram showing the reverse configuration of the circuit board of the wall socket structure according to a second embodiment.

FIG. 7 is a circuit diagram of a non-isolated AC-DC converter according to an embodiment.

FIG. 8 is a diagram showing a connection interface of a communication module according to an embodiment.

110. . . Circuit board

120. . . socket

150. . . Communication module

180. . . Locking piece

190. . . cover

Claims (14)

A wall socket structure includes: a circuit board having a front surface and a back surface; a socket disposed on the front surface and connected to an electrical device; a plurality of contacts disposed on the opposite side and connected to a fire line, a neutral line and a ground line to the socket; a power measuring circuit disposed on the opposite side, and configured to measure and calculate the power usage status of the electrical device via the socket; a communication module connected to the power quantity Measuring a communication port of the circuit, and being disposed on the front side with respect to the power measuring circuit; and a non-isolated AC-DC converter for providing a working power supply to the component, and having a component component disposed on the front surface And other components are configured on the opposite side. The wall socket structure of claim 1, further comprising: another socket disposed on the front surface and configured to connect another electrical device. The wall socket structure according to claim 1, further comprising: a power switch control circuit electrically connected to the power measuring circuit, and configured to provide a switch control function of the electrical device, and having some components It is disposed on the front side, and other components are disposed on the opposite side. The wall socket structure according to claim 1, further comprising: a locking piece for locking the connection between the circuit board and the power line, and having a plurality of through holes to enable the wall socket structure to be Fixed; and a cover secured to the socket to cover the wall socket structure. The wall socket structure as described in claim 1 is in compliance with UL-NEMA 5-15 specifications. The wall socket structure as described in claim 1, further comprising: a container for accommodating the entire wall socket structure and conforming to UL-NEMA 5-15 specifications. The wall socket structure according to claim 1, wherein the non-isolated AC-DC converter comprises: a rectifying unit, which is composed of a first diode and a second diode in reverse parallel. Rectifying an input voltage; a filtering unit having a first inductor connected in series with the first diode, a first end coupled to the first inductor, and a first one of the second diode a capacitor, coupled to the second end of the first inductor and a second capacitor of the second diode, the filtering unit is configured to filter the rectified input voltage; and a power processing stage circuit An output voltage is obtained and output according to the output of the filtering unit as the operating power source. The wall socket structure of claim 1, wherein the power measuring circuit comprises: a voltage sensing circuit for obtaining a voltage measuring signal, and a current sensing circuit for obtaining a current amount And a power measurement system integrated with a single chip for calculating the power usage of the electrical device according to the voltage measurement signal or the current measurement signal. The wall socket structure as described in claim 8 further includes: a backup battery circuit connected to the power measurement system to integrate the single chip for use as a backup power source when the power supply is interrupted. The wall socket structure as described in claim 8 further includes: a non-volatile memory circuit for storing information relating to the power usage status of the electrical device. The wall socket structure of claim 1, wherein the communication module communicates with a remote management device in a wired manner or in a wireless manner. The wall socket structure according to claim 11, wherein the remote management device is a personal computer, a notebook computer, a number of assistants or a smart phone. The wall socket structure according to claim 1, wherein the communication module is a low power wireless module. The wall socket structure according to claim 1, wherein the communication module is a power line communication module, comprising: a modulation unit connected to the power measurement circuit; and a digital analog converter connected To the modulation module; an amplifier connected to the digital analog converter; a coupling circuit coupled to the amplifier; a filter circuit coupled to the coupling circuit; an instantaneous voltage suppressor coupled to the coupling circuit and the Between the filter circuits; an automatic gain controller coupled to the coupling circuit; an analog-to-digital converter coupled to the automatic gain controller; a filter coupled to the analog-to-digital converter; and a demodulation unit coupled To the filter and the power measuring circuit.