TWM621576U - Electricity usage detection and distribution device - Google Patents

Abstract

The new type of electricity detection and distribution device includes a switch module, a current detection unit and a control module, the switch module is connected between a power supply device and an additional electricity load, and the current detection unit detects by The power supply device outputs the output current to the general electrical load and generates the output current value accordingly. The control module receives the output current value and determines whether the output current value is less than a safe load upper limit value. If so, the control switch module is switched to be turned on. When the output of the power supply device has not reached the upper limit value of the safe load, the power supply device can supply power to the additional power consumption load, so as to ensure the power supply of the general power consumption load at the same time. The purpose of using electricity and supplying power to additional electrical loads in a timely manner.

Description

Electricity detection and distribution device

A power consumption detection and distribution device, especially a power consumption detection and distribution device used for supplying power to an additional power consumption load.

Generally, household electricity is provided by the power company. The power company will set up a meter outside the home to record the number of degrees of household electricity consumption, and the power company will set an electricity consumption limit to ensure that the current passing through the meter meets the safety regulations. . In the home, there will be another distribution box for the distribution and control of household electricity, and a main power switch and a plurality of circuit protection components, such as circuit breakers, are centrally arranged in the distribution box to control the power distribution to the building units. The total current and the current of various electrical appliances or sockets. When the current passing through the main power switch or one of the circuit protection components is greater than its preset current limit value, the main current switch or the circuit protection components will trip to form an open circuit state to avoid the danger of overcurrent. At this time, if the main power supply If the switch is tripped, all electrical appliances will trip. If one of the circuit protection components is tripped, only the electrical appliance corresponding to the circuit protection component will trip. Therefore, the total current upper limit of the total power switch through the distribution box must be less than or equal to the total current upper limit that can be used by general household electricity, such as the electricity consumption limit set by the power company. 30 amps (A).

In recent years, in addition to traditional household appliances that require electricity, electric vehicle charging devices have become more and more common additional electrical devices in general homes. The electric vehicle charging device consumes more power when charging the electric vehicle than the general household small electrical appliances, and these additional power requirements make the total power consumption likely to exceed the originally set total current upper limit, resulting in power outages, etc.

Therefore, in order to avoid possible power outages, the common practice is to replace the main power switch with a power switch with a larger current limit value, and apply to Taipower to increase the power consumption limit of the home. For example, change the main power switch to a new main power switch with a current limit of 100A, and apply to Taipower to increase the electricity consumption limit of the house to 100A. However, applying for an increase in the electricity limit will not only change the way the household's electricity bill is calculated, increasing the electricity bill for the same electricity consumption, but also the distribution box and wires must be adjusted or replaced, resulting in additional costs. However, for example, the electricity consumption of the electric vehicle charging device is usually only required for a specific period of time, and the chance of affecting the daily electricity consumption is not high. It is not cost-effective for ordinary households to replace the main power switch with a new one and apply for an increase in the electricity consumption limit. .

To sum up, when a household is additionally installed with electrical appliances, how to effectively control the total power consumption to avoid overcurrent without changing the rated instantaneous power consumption limit is bound to be an urgent need for general household electricity consumption.

In view of the requirement of effectively controlling the power consumption of users to achieve the most effective power consumption distribution, the present invention provides a power consumption detection and distribution device, which is electrically connected to a power supply device, and the current detection unit detects the output of the power supply device. An output current is generated, and an output current value is generated accordingly; the power consumption detection and distribution device includes: a switch module having a power input port and a power output port, the power input port is electrically connected to a power supply device, and the power output port is electrically connected to an additional electrical load; a current detection unit, which detects an output current output from the power supply device to a general electrical load, and generates an output current value accordingly; A control module has a current detection input terminal and a control output terminal; the current detection input terminal is connected to the current detection unit to receive the output current value; the control output terminal is electrically connected to the switch module for monitoring The switch module outputs a control signal; Wherein, the control module determines whether the output current value is less than a safe load upper limit value; if so, the control module controls the switch module to switch to a conducting state, so that the power supply device passes through the power input port and the power output port , to supply power to the additional electrical load.

The power supply device connected to the power input port of the power consumption detection and distribution device of the present invention is, for example, an electricity meter device set up by a power company, and the power supply device is electrically connected to the general electrical load, such as electrical equipment in a general home , such as an indoor power distribution panel, which is used to supply power to the general electrical loads in the home such as lamps, TVs, fans, refrigerators, air conditioners, etc., and the power outlet is electrically connected to the additional electrical loads, such as It is an electric vehicle charging device.

The current detection unit is used to detect the output current output by the power supply device to the general electrical load, so that the control module can determine whether the output current of the power supply device is lower than the upper limit of the safe load, and if so, then Indicates that the usage current of the general electrical load in the user is still far below the upper limit of the rated usage current, and there is an excess current limit for additional electrical loads, so the control module controls the switch module to switch to on state, so that the power supply device can supply power to the additional electrical load through the power output port of the switch module.

For example, the electricity consumption detection and distribution system is set between the electricity meter device and the indoor power distribution panel, and the electricity meter device is connected to the power input port to receive the power supply from the power company, and an additional electricity consumption circuit is connected through the power output port to use It is used to supply power to the extra power load when there is an excess current limit for general power consumption.

The new type of power consumption detection and distribution device can actively ensure that the user's power consumption can be preferentially provided to general daily power consumption, such as lighting, refrigerators, etc., and further provided to additional power consumption loads when there is an excess current quota , such as the electric vehicle charging device, to avoid the situation that the instantaneous power supply current is too large to cause a power outage. In this way, the operation of these charging devices can be achieved when the general daily electricity consumption is relatively low, such as when the user members go to bed at night, and the upper limit value of the rated current of the user can be achieved without changing the user's upper limit value. Efficiently distribute electricity.

Please refer to FIG. 1 and FIG. 2 , the power consumption detection and distribution device 10 of the present invention is connected to a power supply device 20 and an additional power consumption load 40 , and mainly includes a switch module 11 , a current detection unit 12 and a control Module 13. The switch module 11 has a power input port I/P and a power output port O/P, the power input port I/P is electrically connected to the power supply device 20, and the power output port O/P is electrically connected to the additional electrical load 40. When the switch module 11 is in the on state, the power input port I/P and the power output port O/P are connected, so that the power supply device 20 can supply power to the additional electrical load 40 through the switch module 11 ; When the switch module 11 is in a non-conducting state, the power input port I/P and the power output port O/P are connected to each other, so that the power supply device 20 cannot use the additional power through the switch module 11. Load 40 supplies power. The switch module 11 is controlled by the control module 13 to switch between a conducting state and a non-conducting state. The current detection unit 12 detects an output current output from the power supply device 20 to the general electrical load 30 to generate an output current value, and provides the output current value to the current detection input of the control module 13 end. The current detection unit 12 is, for example, connected to a current converter 21 disposed on the output loop from the power supply device 20 to the general electrical load 30 to detect the output of the power supply device 20 to the general electrical load 30 . Output current. In another example, the current detection unit 12 is a current meter, which is connected in series to the output circuit from the power supply device 20 to the general electrical load 30 , and the control module 13 receives the output current value ( S101 ), and determines the output Whether the current value is less than a safe load upper limit value ( S102 ), if so, control the switch module 11 to switch to a conducting state ( S103 ), so that the power supply device 20 passes the power input port I/P and the power output port O/ P supplies power to the additional electrical load 40 ; if not, the switch module 11 is controlled to maintain a non-conducting state ( S104 ).

Preferably, the upper limit value of the safe load is less than an upper limit value of the rated current. For example, assuming that the upper limit of the rated current of the user is 80A, the upper limit of the safe load can be set to 60A. The upper limit of the rated current is the upper limit of the instantaneous power consumption current set by the user at the Taipower terminal, and is also the upper limit of the power supply current of the power supply device 20 . When the output current value is less than the upper limit value of the safe load, it means that there is still a gap between the output current value and the upper limit value of the rated current, and the excess electricity consumption is 20A, which is indeed enough to provide the additional electricity consumption load 40, so the control The group 13 controls the switch module 11 to be turned on, so that the power supply device 20 can supply power to an additional electrical load.

Please refer to FIG. 3 , in an embodiment of the present invention, after the control module 13 controls the switch module 11 to switch to a conducting state, the control module 13 continuously monitors the output of the power supply device 20 to the general-purpose This output current value of the electrical load 30 . When the output current value is greater than a critical load upper limit value, the control module 13 starts timing, and determines whether the time that the output current value is continuously greater than the critical load upper limit value exceeds a delay time ( S105 ), and when the output current value is continuously greater than the critical load upper limit value The control module 13 determines that the time that the output current value is continuously greater than the upper limit of the critical load exceeds the delay time, and the control module 13 controls the switch module 11 to switch to a non-conducting state (S104); if the delay time is not exceeded , the switch module 11 is maintained in the conducting state.

Preferably, the upper limit of the critical load is greater than the upper limit of the safe load and smaller than the upper limit of the rated current. For example, the upper limit of the rated current is 80A, the upper limit of the safe load can be set to 60A, and the upper limit of the critical load is 70A. After the switch module 11 is switched on and the power supply device 20 supplies power to the general electrical load 30 and the extra electrical load 40 at the same time, if the output current output from the power supply device 20 to the general electrical load 30 continues to be greater than the threshold When the time for the upper limit of the load exceeds the delay time, it means that the output current output by the power supply device 20 to the general electrical load 30 is too close to the upper limit of the rated current for a long time, and there are always cases where the upper limit of the rated current exceeds the upper limit of the rated current. It may lead to the possibility of a power outage, so the control module 13 controls the switch module 11 to switch to non-conductive, stop the power supply to the extra electrical load 40 , and ensure the power supply of the general electrical load 30 . Preferably, the upper limit of the safe load, the upper limit of the critical load and the delay time can be set by the user.

Please refer to FIG. 4 and FIG. 5 together. FIG. 5 is a schematic diagram of the appearance of the new-type power consumption detection and distribution device 10 . The electricity detection and distribution device 10 includes a casing 100 , and the control module 13 and the current detection unit 12 are disposed in the casing 100 , for example, integrated on a circuit board. The casing is provided with a terminal block 101 for providing connection ends such as the input end of the current detection unit 12 and the working power input end of the control module 13 . In addition, in an embodiment of the present invention, the power distribution device further includes an input unit 14 and a display unit 15 , which are disposed on the casing 100 and are electrically connected to the control module 13 respectively. The input unit 14 is operated by the user, for example, includes a plurality of setting buttons 141 for receiving a safe load upper limit setting value, a critical load upper limit setting value and a delay time setting value input by the user. The control module 13 receives The safe load upper limit setting value, the critical load upper limit setting value and the delay time setting value are set accordingly, and the safe load upper limit value, the critical load upper limit value and the delay time are set accordingly. The display unit 15 is used to display and set the upper limit of the safe load, the upper limit of the critical load and the delay time.

Please continue to refer to FIG. 4 and FIG. 5 , in an embodiment of the present invention, the switch module 11 includes a switching mechanism 111 and a driving motor 112 . The driving motor 112 is disposed inside the casing 100, the switching mechanism has the conducting state and the non-conducting state, and the driving motor is electrically connected to the control module 13 to receive a control signal from the control module 13, and pass A rotating shaft connects the switching mechanism 111 and drives the switching mechanism 111 to switch between a conducting state and a non-conducting state. Preferably, the switch module 11 further includes a manual switching lever 113 connected to the switching mechanism 111 and disposed in an opening of the housing 100 for the user to manually switch the switching mechanism 111 . In addition, the switch module 11 may be a controllable switch for controlling a high-power power supply, such as a contactor switch, which is not limited by the present invention.

The above descriptions are only the embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed above in the embodiments, it is not intended to limit the present invention. Departing from the scope of the technical solution of the present invention, when the technical content disclosed above can be used to make some changes or modifications to equivalent embodiments with equivalent changes, provided that the content of the technical solution of the present invention is not departed from, the technical essence of the present invention shall Any simple modifications, equivalent changes and modifications made in the above embodiments still fall within the scope of the technical solution of the present invention.

10: Electricity detection and distribution device 101: Terminal block 11: switch module 111: Switching mechanism 112: drive motor 113: Manual switch lever I/P: Power input port O/P: Power output port 12: Current detection unit 13: Control module 14: Input unit 15: Display unit 20: Power supply device 21: Comparator 30: General electrical load 40: Additional electrical load

FIG. 1 is a block schematic diagram of the new type of electricity detection and distribution device. FIG. 2 is a schematic flow chart of a method performed by the power consumption detection and distribution device of the present invention. FIG. 3 is a schematic flowchart of a method performed by an embodiment of the power consumption detection and distribution device of the present invention. FIG. 4 is a block schematic diagram of another embodiment of the power consumption detection and distribution device of the present invention. FIG. 5 is a schematic view of the appearance of the new type of electricity detection and distribution device.

10: Electricity detection and distribution device

11: switch module

I/P: Power input port

O/P: Power output port

12: Current detection unit

13: Control module

20: Power supply device

21: Comparator

30: General electrical load

40: Additional electrical load

Claims (7)

An electricity detection and distribution device, comprising: a switch module having a power input port and a power output port, the power input port is electrically connected to a power supply device, and the power output port is electrically connected to an additional electrical load; a current detection unit, which detects an output current output from the power supply device to a general electrical load, and generates an output current value accordingly; A control module has a current detection input terminal and a control output terminal; the current detection input terminal is connected to the current detection unit to receive the output current value; the control output terminal is electrically connected to the switch module for monitoring The switch module outputs a control signal; Wherein, the control module determines whether the output current value is less than a safe load upper limit value; if so, the control module controls the switch module to switch to a conducting state, so that the power supply device passes through the power input port and the power output port supply power to this additional electrical load. The power consumption detection and distribution device as claimed in claim 1, wherein, After the control module controls the switch module to switch to a conducting state, the control module continuously monitors the output current value, when the output current value is greater than a critical load upper limit, the control module starts timing, and when The control module determines that the time when the output current value is greater than the upper limit of the critical load exceeds a delay time, and the control module controls the switch module to switch to a non-conducting state. The power consumption detection and distribution device according to claim 2, further comprising: An input unit, electrically connected to the control module, receives a safe load upper limit setting value, a critical load upper limit setting value and a delay time setting value, and the control module is based on the safe load upper limit setting value, the critical load upper limit setting value The set value and the set value of the delay time set the upper limit value of the safe load, the upper limit value of the critical load and the delay time. The power consumption detection and distribution device according to claim 3, further comprising: A display unit is electrically connected to the control module for displaying the set value of the upper limit of the safe load and the set value of the delay time. The power consumption detection and distribution device according to claim 1, wherein the switch module comprises: a switching mechanism having the conducting state and the non-conducting state; A driving motor is connected to the switching mechanism and is electrically connected to the control module to receive a control signal from the control module, and to drive the switching mechanism to switch between a conducting state and a non-conducting state accordingly. The power consumption detection and distribution device according to claim 5, wherein the switch module comprises: A manual switching lever is connected to the switching mechanism for manual switching of the switching mechanism. The power consumption detection and distribution device according to claim 1, wherein the switch module is a contactor switch.

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