TWI652863B - Extension cord device and its controller - Google Patents

Abstract

The invention relates to an extension cord device and a controller thereof. The extension cord device comprises a socket body and the controller, wherein the socket body is provided with a plurality of sets of jacks, and the controller is provided with a plug correspondingly inserted in the The socket body is in any set of jacks; when the controller is electrically connected to the jack, the other load devices connected to the socket body can be selectively monitored or perform control functions, such as monitoring current and power. Calculation, timing switching power supply, etc., so that the power consumption status of the load device can be obtained instantly and conveniently managed.

Description

Extension cord device and its controller

The present invention relates to an extension cord device, and more particularly to an extension cord device that incorporates a controller to perform a monitoring function.

The extension cord socket can be said to be the most commonly used power supply equipment in daily life. It can be used in general homes, offices, factories, etc. wherever it is necessary to connect a large number of electrical equipment. At present, the extension cord sockets commonly available on the market can be provided with individual power switches for each jack to facilitate the user to independently control the power supply of the electrical equipment, but the extension cord of this structure will be prolonged due to the increase in the number of power switches. The size of the line socket is also increased; there is another structure that uses a single power switch to control the entire jack, but the disadvantage is that the user cannot control the power supply separately for different loads.

In addition, some extension cord sockets have been improved in terms of functions, such as structural strengthening of fire protection, water repellent and lightning protection. However, at present, there is a lack of integrated monitoring function on the extension cord socket. When a plurality of electrical devices are connected to the extension cord socket, the user often cannot know the power supply condition on the extension cord socket, and it is difficult to intuitively obtain the current power consumption situation of the electrical equipment.

In view of the above-mentioned many disadvantages of the prior art extension cord sockets, the main object of the present invention is to provide an "extension line device" which can conveniently monitor and know the power usage state of the load device.

To achieve the foregoing objectives, the extension cord device of the present invention includes a socket body and a controller. Wherein, the socket body is provided with a plurality of sets of jacks, and the inside of the socket body is fixed:

a first conductive member comprising a plurality of electrically connected conductive sheets and each of the conductive sheets comprises a first elastic piece and a second elastic piece in relative elastic contact;

a second conductive member, provided with a plurality of engaging grooves;

The controller has a control circuit therein, and a plug connected to the control circuit is connected to the controller, and the plug is pluggably connected to the jack of the socket body and includes:

An insulating sheet is formed on the opposite surfaces to electrically connect the control circuit, and the two conductive layers are electrically connected to the first elastic piece and the second elastic piece respectively when the controller is connected to the socket body;

A conductive piece is connected to the control circuit, and the conductive piece is inserted into a corresponding one of the engaging grooves when the controller is connected to the socket body.

In practical application, the socket body can be connected to a plurality of different electrical devices, and the plug of the controller is connected to any set of jacks of the socket body. When the control circuit has a monitoring function, the power information of the electrical devices can be obtained. . When the control circuit has an active control function, the controller can control a part of the electrical equipment, and the remaining electrical equipment can maintain independent work without being affected, providing more flexible space for the user to freely play, and the user can According to actual needs, the position of each electrical equipment is determined.

Referring to FIG. 1 , the extension cord of the present invention includes a socket body 10 and a controller 20 . The socket body 10 is provided with a plurality of sets of jacks 11 , and each set of jacks 11 can be correspondingly connected to the plugs of the electrical equipment; the controller 20 can also be plugged into any set of jacks 11 and jointly combined with the socket body 10 provides control.

A conductive structure is disposed in the interior of the socket body 10. Referring to FIG. 2, the conductive structure includes at least two conductive members, respectively a first conductive member 12 and a second conductive member 13. The first conductive member 12 And the second conductive members 13 are electrically connected to the two wires L, N of the input power line. The first conductive member 12 is composed of a plurality of conductive sheet groups connected in series, and the adjacent conductive sheet groups can be electrically connected by wires, metal sheets or other conductive members, and each conductive sheet group comprises a pair of electrodes. a first elastic piece 121 and a second elastic piece 122. The first elastic piece 121 and the second elastic piece 122 are generally in a state of maintaining relative elastic contact. When the plug of the electrical device is inserted into the insertion hole 11, the conductive piece of the plug The first elastic piece 121 and the second elastic piece 122 are pressed together by the two elastic pieces, and when the plug is removed, the first elastic piece 121 and the second elastic piece 122 are restored to each other due to the elastic force.

In an embodiment, the second conductive member 13 is the same as the first conductive member 12, and is electrically connected by a plurality of conductive sheets. In another embodiment, the second conductive member 13 is also The conductive copper piece may be formed by stamping, and a plurality of engaging grooves 131 are formed on the conductive copper piece. Each of the engaging grooves 131 and a corresponding set of conductive pieces correspond to a set of the insertion holes 11 for one plug. Electrical connection.

Referring to FIG. 3, the controller 20 has a plug that includes an insulating sheet 21 and a conductive sheet 22, and conductive layers 23a, 23b are formed on opposite sides of the insulating sheet 21, and the conductive sheet 22 is formed. It can be a copper piece. A display 24 may be disposed on the surface of the controller 20 for displaying the status or information of the controller 20. The controller 20 has a control circuit 25 electrically connected to the two conductive layers 23a, 23b and the display 24, and may include a timing circuit, a current detecting circuit, a voltage detecting circuit, and a power calculating circuit. One or a combination of a wireless receiving circuit, a display circuit, a monitoring circuit, a power protection circuit, or other circuit usable for control.

Referring to FIG. 4, in the practical application, the plug of the controller 20 can be inserted into any set of jacks 11 on the socket body 10, wherein the insulating sheet 21 is inserted into the first elastic piece 121 and Between the two elastic sheets 122, the conductive layers 23a, 23b on both surfaces of the insulating sheet 21 are electrically contacted with the first elastic piece 121 and the second elastic piece 122, respectively, and the other conductive piece 22 of the controller 20 is correspondingly inserted into the card. Slot 131. In the example shown in FIG. 4, the controller 20 is connected to the third group of jacks 11 from the power input end, because the insulating sheet 21 can be regarded as a partition if the electrical device is connected to the controller 20 and The front-end jack 11 between the power input terminals can be controlled by the controller 20; if an electrical device is connected to the rear-end jack 11 located behind the controller 20, it can be monitored by the controller 20, and the circuit action is further described as follows.

First, the control circuit 25 is exemplified by a current detecting circuit, a voltage detecting circuit, or a power calculating circuit. Referring to the embodiment shown in FIG. 5, the control circuit 25 includes a current detecting circuit and a voltage detecting circuit. The current I flowing from the power input terminal enters the controller 20 via one of the conductive layers 23a, and then passes through another a conductive layer 23b is transferred to the electrical equipment of the rear stage. Therefore, the current I passes through the controller 20 itself, so that the current detecting circuit can detect the current I on the socket body 10 because the voltage supplied by the socket body 10 is a fixed value. The voltage detecting circuit can detect the voltage between the two wires L and N. The power can be further calculated based on the detected current and voltage.

The control circuit 25 takes a timing circuit as an example. As shown in FIG. 6, the timing circuit includes a switching component, and the user can set a timing time on the controller 20. When the timing is over, the switch The component can be turned "ON" or "OFF", and the switching element can be switched to an off or off state by electromechanical or electronic control. When the switching element is closed, a path is formed, and the current can be supplied to the electrical equipment located in the rear stage of the controller 20 through the controller 20. Therefore, the electrical equipment can automatically obtain the power when the timing is terminated; otherwise, when the switching element is turned on, an open circuit is formed, and the current cannot be obtained. It is provided by the controller 20 to the electrical equipment located in the rear stage of the controller 20. The electrical equipment can be automatically powered off when the timing is terminated, but the electrical equipment located in the front stage of the controller 20 is not affected by the timing power failure. For example, the switching element in the timing circuit may be constituted by a relay or other electronic switch, and when the timing is terminated, the excitation coil of the relay is controlled to change the on/off of the relay, or the on/off of the electronic switch is changed. The state is reached for power failure or power supply purposes.

The control circuit 25 can also include a wireless receiving circuit for receiving a wireless remote control signal, and determining whether to supply power to the electrical device according to the wireless remote control signal.

The control circuit 25 can include a monitoring circuit, a power protection circuit, or a remote control circuit. In one embodiment, the monitoring circuit can provide a user with remote monitoring of the power usage of the load, control of the power switch or monitoring system. The power protection circuit can continuously monitor whether the power usage condition of the load is within a safe range according to the measured current, voltage, power, power supply time, etc., if a preset condition (such as a preset current value or a preset power value) is exceeded. , the power can be automatically executed to avoid the accidental danger caused by overload. The remote control circuit has the function of a remote remote control home device, and can be connected to a home network system (such as a home Wifi). For example, when the user transmits a control command through the handheld device, the control command is transmitted through the network. Transmitted to the remote control circuit, the remote control circuit can turn on or off the power supply of the home device according to the control command.

Please refer to FIG. 7 and FIG. 8 , which is a second embodiment of the controller 20 of the present invention. The controller 20 is further provided with a set of connecting holes 26 for powering a main control load 50, and the controller 20 is behind the controller 20 . The jack 11 on the socket body 10 can be electrically connected to the controlled load 60. Here, the host computer is used as the main control load 50, and the computer peripheral devices such as a screen and a printer are used as the controlled load 60 as an example. .

Referring to FIG. 9 , when the main control load 50 is plugged into the controller 20 through the connection hole 26 , both ends of the main control load 50 can obtain power through one of the conductive layer 23 a and the conductive sheet 22 , and the main control load 50 It is equivalent to being connected in parallel between the conductive layer 23a and the conductive sheet 22; the relay switch 27 inside the controller 20 is equivalently connected between the two conductive layers 23a, 23b, and is controlled by the control circuit 25 of the controller 20. When the main control load 50 has a power supply operation, the relay switch 27 can be maintained in an ON state, allowing power to pass to the controlled load 60. On the contrary, once the main control load 50 is turned off and stops, because no current flows through the main control load 50, the relay switch 27 will turn OFF to form an open circuit, and the power cannot be transmitted backward to force the controlled load 60 to be powered off. .

Referring to FIG. 10 again, in another embodiment, when the main control load 50 is plugged into the controller 20 through the connection hole 26, one end of the main control load 50 can be via the internal control circuit 25 of the controller 20. The conductive layer 23a is electrically connected, and the other end of the main control load 50 is connected to the conductive sheet 22 to obtain electric power. The main control load 50 is connected in series between the conductive layer 23a and the conductive sheet 22 through the controller 20. Similarly, when the main control load 50 is powered, the relay switch 27 can remain in an ON state, allowing power to pass to the controlled load 60. On the other hand, once the main control load 50 is turned off and stops, since no current passes through the main control load 50, the relay switch 27 will thus turn OFF to form an open circuit, and the power cannot be transmitted backward to force each controlled load 60 to be broken. Electrical shutdown.

When the controller 20 of the present invention is connected to the main control load 50, the user can determine the power supply of the controlled load 60 by turning on or off the power of the main control load 50. For example, when the main control load 50 is a computer host, once the user turns off the power of the computer main body, the computer peripheral device as the passive load 60 can be synchronously powered off, which has the advantages of convenient operation and power saving, and avoids the user. Turn off the power waste caused by turning off the power of the computer peripherals. In addition, if other general electrical equipment is connected to the jack 11 in the front section of the controller 20, the normal power supply can be maintained without being affected by the power supply of the host computer.

In summary, the present invention allows the user to arbitrarily insert the controller 20 into any of the sockets 11 of the socket body 10. The controller 20 and the socket body 10 are pluggable and separated. Do not increase the volume too much, which can reduce the space occupied. When the socket body 10 is used alone, it can provide a power transmission function of a general extension cord; when the socket body 10 cooperates with the controller 20, the controller 20 is equivalent to being a demarcation point, and when a specific electrical appliance needs to be monitored, Connected to the jack 11 at the rear of the controller 20. The controller 20 can design and manufacture a corresponding control circuit 25 according to required monitoring parameters or functions, such as current measurement, power calculation, timing, remote control, monitoring, power protection, etc., and can present the current amount through the display 24. Various data or status measured.

10‧‧‧ socket body

11‧‧‧ jack

12‧‧‧First conductive parts

121‧‧‧First shrapnel

122‧‧‧Second shrapnel

13‧‧‧Second conductive parts

131‧‧‧ snap groove

20‧‧‧ Controller

21‧‧‧Insulation sheet

22‧‧‧Conductor

23a, 23b‧‧‧ Conductive layer

24‧‧‧ display

25‧‧‧Control circuit

26‧‧‧Connection hole

27‧‧‧Relay switch

50‧‧‧Master load

60‧‧‧Controlled load

L, N‧‧‧ wires

Figure 1: Schematic diagram of the extension cord device of the present invention. Figure 2 is a schematic view showing the conductive structure inside the socket body of the present invention. Figure 3 is a schematic view showing the appearance of a first embodiment of the controller of the present invention. Figure 4 is a schematic view showing the use of the first embodiment of the present invention. FIG. 5 is a schematic diagram of a current detecting circuit and a voltage detecting circuit included in the control circuit of the present invention. Figure 6 is a schematic diagram showing an equivalent circuit including a timing circuit in the control circuit of the present invention. Figure 7 is a perspective view showing the second embodiment of the controller of the present invention. Figure 8 is a schematic illustration of the controller of the present invention connected to a master load. Figure 9 is an equivalent circuit diagram of the controller of the present invention connected to the main control load. Figure 10 is another equivalent circuit diagram of the controller of the present invention connected to the main control load.

Claims (10)

An extension cord device comprising: a socket body having a plurality of sets of jacks disposed on a surface thereof, the inside of the socket body being fixed: a first conductive member comprising a plurality of electrically connected conductive sheet groups and each conductive sheet group a first elastic piece and a second elastic piece including a relatively elastic contact; a second conductive member provided with a plurality of engaging grooves; a controller having a control circuit therein, and the controller is connected to the controller a plug of the control circuit, the plug is pluggably connected to the socket of the socket body and comprises: an insulating sheet, wherein a conductive layer is respectively formed on opposite surfaces to electrically connect the control circuit, and the two conductive layers are controlled When the device is connected to the socket body, the first elastic piece and the second elastic piece are electrically contacted respectively; a conductive piece is connected to the control circuit, and the conductive piece is inserted into a corresponding card when the controller is connected to the socket body. Slotted. The extension line device of claim 1, the control circuit comprising a timing circuit, a current detecting circuit, a voltage detecting circuit, a power calculating circuit, a wireless receiving circuit, a display circuit, a monitoring circuit, and a power protection At least one of the circuits. The extension device of claim 2, wherein the controller is provided with a display. The extension cord device of claim 3, wherein the controller is provided with a set of connection holes for connecting a main control load. The extension device of claim 4, wherein the controller is provided with a switching element, wherein the switching element is controlled by the control circuit, and two ends of the switching element are respectively connected to the two conductive layers of the plug. The extension device of claim 5, wherein the second conductive member is a conductive copper sheet. A controller for a socket body, the controller comprising: a control circuit disposed on the controller; a plug disposed on the controller and electrically connected to the control circuit for inserting Connected to the socket body, the plug comprises: an insulating sheet, a conductive layer is formed on each of the opposite surfaces to electrically connect the control circuit; and a conductive sheet is connected to the control circuit. The controller of claim 7, wherein the control circuit comprises a timing circuit, a current detecting circuit, a voltage detecting circuit, a power calculating circuit, a wireless receiving circuit, a display circuit, a monitoring circuit, and a power protection circuit. At least one of them. The controller of claim 8, wherein the controller is provided with a display. The controller of claim 7, wherein the controller is provided with a set of connection holes for connecting a main control load; the controller is provided with a switching element, wherein the switching element is controlled by the control circuit Turn on or off.