JP2020089199A - Power receiving device, power feeding device, and wiring system - Google Patents

Abstract

To provide a power receiving device, a power feeding device, and a wiring system capable of improving the detection accuracy of abnormalities that occur in power receiving devices.SOLUTION: A power receiving device 2 includes: a power receiving unit 21; a connection part 22; an abnormality detection unit 24; and a communication unit (first communication unit 25). The power receiving unit 21 is electrically connected to a power supply unit 4. The connection part 22 electrically connects the power receiving unit 21 and a wire (first wire 6). The abnormality detection unit 24 detects abnormality information on at least one of the power receiving unit 21, the connection part 22, and the wire. A communication unit outputs the detection information detected by the abnormality detection unit 24 to the power supply unit 4.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a power receiving device, a power feeding device, and a wiring system, and more specifically, to a power receiving device electrically connected to an electric wire, a power feeding device electrically connected to the power receiving device, and these power receiving devices and power feeding. And a wiring system including the device.

The power outlet monitoring system described in Patent Document 1 includes a power outlet device having an outlet for connecting a plug of a load device, and an alarm device for notifying and outputting overheating of the power outlet device. The power outlet device includes a temperature detection element that detects and outputs a state according to the temperature of the outlet or the vicinity thereof, and a control unit. The control unit measures the temperature based on the detection signal of the temperature detection element and detects overheating based on the measured temperature.

JP, 2013-149059, A

In the power outlet monitoring system described in Patent Document 1, there is a possibility that an abnormality such as overheating may occur in the plug (power receiving device) of the load device. The heat generated by the plug may be transmitted to the power outlet device and detected by the temperature detecting element provided in the power outlet device, but the detection accuracy was not always sufficient. Therefore, there are cases where it is required to further improve the accuracy of detecting an abnormality such as overheating in the plug.

An object of the present disclosure is to provide a power receiving device, a power feeding device, and a wiring system that can improve the accuracy of detecting an abnormality that occurs in the power receiving device.

A power reception device according to an aspect of the present disclosure includes a power reception unit, a connection unit, an abnormality detection unit, and a communication unit. The power receiving unit is electrically connected to the power supply device. The connection part electrically connects the power reception part and an electric wire. The abnormality detection unit detects information about an abnormality regarding at least one of the power reception unit, the connection unit, and the electric wire. The communication unit outputs the detection information detected by the abnormality detection unit to the power supply device.

A power feeding device according to an aspect of the present disclosure includes a power feeding unit electrically connected to the power receiving unit of the power receiving device, a power feeding terminal unit, and a second communication unit. The power feeding terminal portion electrically connects the power feeding portion and the second electric wire. The second electric wire is provided separately from the first electric wire as the electric wire. The second communication unit is provided separately from the first communication unit serving as the communication unit, and receives an input of the detection information output from the first communication unit.

A wiring system according to an aspect of the present disclosure includes the power feeding device and the power receiving device.

The present disclosure has an advantage that the detection accuracy of an abnormality that occurs in the power receiving device can be improved.

FIG. 1 is a schematic diagram of a wiring system according to an embodiment. FIG. 2 is an exploded perspective view of the power receiving device of the above wiring system. FIG. 3 is a perspective view showing a state in which the power feeding device of the above wiring system is attached to the construction surface. FIG. 4 is an exploded perspective view of a power supply device of the above wiring system. FIG. 5 is a schematic diagram of a wiring system according to a modified example 1 of the embodiment. FIG. 6 is a schematic diagram of a wiring system according to a second modification of the embodiment. FIG. 7: is sectional drawing of the principal part of the wiring system same as the above.

Hereinafter, a power receiving device, a power feeding device, and a wiring system according to an embodiment will be described with reference to the drawings. However, the following embodiment is only one of the various embodiments of the present disclosure. The following embodiments can be variously modified according to the design and the like as long as the object of the present disclosure can be achieved. Further, each drawing described in the following embodiments is a schematic drawing, and the ratio of the size and thickness of each constituent element in the drawings does not necessarily reflect the actual dimensional ratio. ..

As shown in FIG. 1, the wiring system 1 of this embodiment includes a power receiving device 2 and a power feeding device 4.

In the present embodiment, the power receiving device 2 is a plug of the electric device 100. The electric device 100 includes a power receiving device 2 and an electric device main body 101 connected to the power receiving device 2. The power receiving device 2 includes a power receiving unit 21 that is electrically connected to the power feeding device 4. The power receiving unit 21 includes a pair of blades 211. The power feeding device 4 is an outlet. The power feeding device 4 includes a plurality of insertion ports 521 (four in FIG. 3) into which a pair of blades 211 are inserted.

First, the configuration of the power receiving device 2 will be described with reference to FIGS.

As illustrated in FIG. 1, the power receiving device 2 includes a pair of connecting portions 22, a first body 23, an abnormality detecting portion 24, and a first communication portion 25 in addition to the power receiving portion 21. There is. The power receiving device 2 is electrically connected to the pair of first electric wires 6. More specifically, one end of each first electric wire 6 is electrically connected to the power receiving device 2, and the other end is electrically connected to the electric device body 101.

The pair of connecting portions 22 correspond to the pair of blades 211 on a one-to-one basis. Further, the pair of connecting portions 22 correspond to the pair of first electric wires 6 in a one-to-one relationship. Each connecting portion 22 electrically connects the corresponding blade 211 and the corresponding first electric wire 6. The first body 23 houses at least a part of the power receiving section 21 and the pair of connecting sections 22. The abnormality detection unit 24 detects information about an abnormality regarding at least one of the power reception unit 21, the pair of connection units 22, and the pair of first electric wires 6. The "abnormality" referred to here is, for example, overheating (a temperature higher than the rated temperature) or the like, in the power receiving device 2 itself or in the power feeding device 4 or the electric device main body 101 connected to the power receiving device 2, A condition that can have different effects. The first communication unit 25 outputs the detection information detected by the abnormality detection unit 24 to the power supply device 4.

In the wiring system 1, the power receiving device 2 includes an abnormality detection unit 24 that detects information about an abnormality in the power receiving device 2. Therefore, compared with the case where the power supply device 4 is provided with the abnormality detection unit 24, it is possible to improve the accuracy of detecting an abnormality in the power receiving device 2.

The abnormality detection unit 24 of the present embodiment is a temperature sensor that detects temperature. That is, in the present embodiment, the detection information detected by the abnormality detection unit 24 is information about temperature. A specific example of the temperature sensor is a thermistor, a thermocouple, a thermopile, or the like. The abnormality detection unit 24 detects the temperature of a predetermined detection site in the power receiving device 2. The detection information detected by the abnormality detection unit 24 is output from the first communication unit 25 to the second communication unit 45 included in the power supply device 4. The power feeding device 4 cuts off the power supply to the power receiving unit 21 according to the detection information. It is preferable that the power receiving device 2 includes an analog/digital conversion circuit that converts the output of the abnormality detection unit 24 from an analog signal into a digital signal.

As shown in FIG. 2, the first body 23 of the power receiving device 2 has a first cover member 231 and a second cover member 232. The first cover member 231 and the second cover member 232 are made of synthetic resin or the like.

The first cover member 231 is provided with a space for arranging a part of the power receiving section 21, a pair of connecting sections 22 and a part of the pair of first electric wires 6. Each of the pair of connecting portions 22 is a screw, and a screw hole into which the pair of connecting portions 22 are screwed is formed in the first cover member 231. Each of the pair of plug blades 211 of the power receiving section 21 is formed with a hole through which the screw shaft of the connection section 22 passes. The screw shaft of each connecting portion 22 is inserted into the hole in the corresponding blade 211, and is further partially screwed into the screw hole in the first cover member 231. In that state, the core wire of the first electric wire 6 corresponding to each connecting portion 22 is wound around the screw shaft of the connecting portion 22. As a result, the screw head of the connection portion 22, the core wire of the first electric wire 6, the power receiving portion 21, and the first cover member 231 are arranged in this order in the longitudinal direction of the screw shaft. Then, the screw shaft of the connecting portion 22 is further screwed into the screw hole of the first cover member 231, so that the first electric wire 6 is held between the screw head of the connecting portion 22 and the power receiving portion 21. It As a result, the connecting portion 22 electrically connects the power receiving portion 21 and the first electric wire 6. Further, as a result, the power receiving portion 21, the pair of connecting portions 22, and the pair of first electric wires 6 are attached to the first cover member 231.

The first cover member 231 is formed with a screw hole 202 into which a screw 201 different from the pair of connecting portions 22 is screwed. The second cover member 232 covers the first cover member 231 with the power receiving unit 21, the pair of connecting units 22, and the pair of first electric wires 6 attached to the first cover member 231. Is attached to the first cover member 231. Further, the screw shaft of the screw 201 is inserted into the hole 203 formed in the second cover member 232 and screwed into the screw hole 202 formed in the first cover member 231. As a result, the first cover member 231 and the second cover member 232 are joined together. Part of the power receiving unit 21, the pair of connecting units 22, and part of the pair of first electric wires 6 are arranged between the first cover member 231 and the second cover member 232. That is, these are housed in the first body 23.

The power receiving device 2 further includes a board 27, and the first body 23 has a board 27, a first communication section 25 mounted on the board 27, and an abnormality detection section 24 (see FIG. 1 ). A connection detector 26 (see FIG. 1) described later is further housed. The substrate 27 is fixed to the second cover member 232, for example.

A passage hole 204 (see FIG. 1) through which the pair of first electric wires 6 is passed is formed in the first body 23. The passage hole 204 includes a recess 205 provided in the first cover member 231 at a position where the pair of first electric wires 6 are drawn out, and a recess 206 provided in the second cover member 232 at a position facing the recess 205. Has been formed.

The abnormality detecting unit 24 (see FIG. 1 ), that is, the temperature sensor detects the temperature of at least one of the power receiving unit 21, the pair of connecting units 22, and the pair of first electric wires 6. The abnormality detection unit 24 is arranged, for example, at a position (region R1 or region R2 in FIG. 2) in contact with at least one of the pair of blades 211 of the power receiving unit 21, and detects the temperature of the at least one blade 211. Detect. Alternatively, the abnormality detection unit 24 is arranged at a position in contact with at least one of the pair of connection units 22, and detects the temperature of the at least one connection unit 22. Alternatively, the abnormality detection unit 24 is arranged inside the passage hole 204 (region R3) and detects the temperature of the portion of the pair of first electric wires 6 inside the passage hole 204.

The abnormality detecting unit 24 is arranged apart from the power receiving unit 21, the pair of connecting units 22 and the pair of first electric wires 6, and the power receiving unit 21, the pair of connecting units 22 and the pair of connecting units 22. The temperature of at least one of the first electric wires 6 may be detected. For example, the abnormality detection unit 24 is mounted on the substrate 27 and detects the ambient temperature of the abnormality detection unit 24 that is raised by the heat of the power reception unit 21, the pair of connection units 22, and the pair of first electric wires 6. Good. That is, the ambient temperature of the abnormality detecting unit 24 corresponds to the temperatures of the power receiving unit 21, the pair of connecting units 22, and the pair of first electric wires 6. In this way, the abnormality detection unit 24 may detect the temperature of the power reception unit 21, the pair of connection units 22, and the pair of first electric wires 6 in a non-contact manner, or in a contact manner. Good.

Further, the power receiving device 2 may include a plurality of abnormality detection units 24. When the power receiving device 2 includes a plurality of abnormality detecting units 24, two of the power receiving unit 21, the pair of connecting units 22, and the pair of first electric wires 6 are used by the plurality of abnormality detecting units 24. One or more temperatures can be detected.

The first communication unit 25 is composed of, for example, an antenna chip. The antenna chip is a component that houses an antenna, a communication circuit, and the like in one package. The communication circuit includes a control IC (Integrated Circuit), an amplifier and a filter. The first communication unit 25 outputs the detection information detected by the abnormality detection unit 24 to the power supply device 4 by wireless communication. In the present embodiment, as an example, as the communication means of the first communication unit 25, Wi-Fi (registered trademark), Bluetooth (registered trademark), ZigBee (registered trademark), or a low-power radio that does not require a license (specific low power Wireless communication that uses radio waves as a communication medium is adopted in accordance with standards such as (wireless). Note that the communication means of the first communication unit 25 may be, for example, wireless communication using light as a communication medium, or wired communication such as power line communication (PLC).

The first communication unit 25 receives power supply by wireless power transfer. The circuit (including the first communication unit 25) mounted on the board 27 is driven by the electric power supplied to the first communication unit 25. The first communication unit 25 supplies power by wireless power transmission from the second communication unit 45 (see FIG. 1) included in the power feeding device 4 in a state where the power receiving device 2 is connected to the power feeding device 4, for example. Receive.

The connection detection unit 26 (see FIG. 1) detects whether the power reception unit 21 is electrically connected to the power feeding device 4. The connection detection unit 26 includes, for example, a reed switch. The power feeding device 4 is provided with a permanent magnet, and when the power receiving unit 21 is mechanically connected to the power feeding device 4 when the power receiving unit 21 is electrically connected to the power feeding device 4, the reed switch causes the permanent magnet to move. , The contact of the reed switch is activated. For example, closing the contact of the reed switch and outputting the signal from the reed switch corresponds to detection that the power receiving unit 21 is electrically connected to the power feeding device 4. On the other hand, the fact that the contact of the reed switch is opened and the reed switch does not output a signal corresponds to the detection that the power receiving unit 21 is not electrically connected to the power feeding device 4.

When the connection detection unit 26 detects that the power reception unit 21 is electrically connected to the power supply device 4, the first communication unit 25 starts communication with the power supply device 4. In other words, the first communication unit 25 and the second communication unit 45 of the power supply device 4 are triggered by the connection detection unit 26 detecting that the power reception unit 21 is electrically connected to the power supply device 4. Start communication. In addition, the first communication unit 25 does not communicate with the second communication unit 45 when the connection detection unit 26 does not detect that the power reception unit 21 is electrically connected to the power supply device 4.

Next, the configuration of the power supply device 4 will be described with reference to FIGS.

As shown in FIGS. 1 and 4, the power supply device 4 includes a plurality of (two in FIG. 4) power supply units 41, a pair of power supply terminal units 42, and a second communication unit 45. The power feeding device 4 further includes a second body 5 and a cutoff portion 8. A pair of second electric wires 7 are electrically connected to the power feeding device 4. The pair of second electric wires 7 is provided separately from the pair of first electric wires 6. The 1st end of each 2nd electric wire 7 is electrically connected to the electric power feeder 4, and the 2nd end is electrically connected to the breaker 9 with which the wiring system 1 is equipped. The second end of each second electric wire 7 is electrically connected to a power source V1 (AC power source) such as a commercial power source via a breaker 9.

Each power feeding unit 41 has a pair of blade receivers 411. The pair of blade receivers 411 correspond to the pair of power supply terminal portions 42 on a one-to-one basis. Each blade receiver 411 is electrically connected to the corresponding power supply terminal portion 42. The pair of power supply terminal portions 42 electrically connect each power supply portion 41 to the two second electric wires 7. However, the breaking unit 8 is interposed between each power feeding unit 41 and the two second electric wires 7. More specifically, one blade receiver 411 of the pair of blade receivers 411 of each power feeding unit 41 is connected to the second electric wire 7 on the L pole (HOT) side via the power feeding terminal unit 42 and the breaking unit 8. It is electrically connected. The other blade receiver 411 is electrically connected to the second electric wire 7 on the N pole (COLD) side via the power supply terminal portion 42 and the cutoff portion 8. That is, in each power feeding unit 41, one blade receiver 411 becomes the L pole and the other blade receiver 411 becomes the N pole. The L pole blade receivers 411 (the two blade receivers 411 on the right side in FIG. 4) of the two power feeding portions 41 are electrically connected to each other through one of the two plate-shaped power feeding terminal portions 42. There is. The N pole blade receivers 411 (the two blade receivers 411 on the left side in FIG. 4) of the two power feeding portions 41 are electrically connected to each other via the other of the two power feeding terminal portions 42.

Each of the two power feeding units 41 is electrically connected to the power receiving unit 21 of the power receiving device 2. The power receiving unit 21 can be electrically connected to either of the two power feeding units 41. That is, one of the pair of blades 211 of the power receiving unit 21 is electrically connected to one of the pair of blade receivers 411 of the power feeding unit 41, and the other of the pair of blades 211 is one pair. Is electrically connected to the other of the blade receivers 411. Each blade receiver 411 is formed of, for example, a metal plate. Each blade receiver 411 is a U-shaped leaf spring, and holds the blade 211 by sandwiching the blade 211 with a spring force.

The second communication unit 45 is provided separately from the first communication unit 25. The 2nd communication part 45 is comprised by the antenna chip similarly to the 1st communication part 25, for example. The second communication unit 45 receives the input of the detection information output from the first communication unit 25. More specifically, the second communication unit 45 receives a signal including the detection information detected by the abnormality detection unit 24 by performing wireless communication with the first communication unit 25.

The wiring system 1 includes a breaker 9. The input end of the breaker 9 is electrically connected to the power supply V1, and the output end of the breaker 9 is electrically connected to the power feeding device 4 via the pair of second electric wires 7.

The cutoff unit 8 of the power feeding device 4 includes, for example, a pair of relays 81. One pair of relays 81 is provided for each of the power supply line (L pole side) and the ground line (N pole side) in the electric path between the pair of power supply terminal portions 42 and the breaker 9. The cutoff unit 8 cuts off the power supply from the power feeding unit 41 to the power receiving unit 21. That is, when the pair of relays 81 of the breaking unit 8 is closed, the power of the power source V1 is supplied from the power feeding unit 41 to the power receiving unit 21. On the other hand, when the pair of relays 81 of the breaking unit 8 are opened, the power of the power source V1 is not supplied from the power feeding unit 41 to the power receiving unit 21 (power supply is cut off).

The power feeding device 4 includes a cutoff control unit 47. The shutoff control unit 47 is configured by, for example, a microcontroller mainly including a processor and a memory. The function as the interruption control unit 47 is realized by the processor executing the program stored in the memory. The program executed by the processor is recorded in advance in the memory of the microcontroller here, but may be recorded in a non-transitory recording medium such as a memory card and provided, or may be provided through an electric communication line. Good.

When the detection information received by the second communication unit 45 indicates an abnormality, the cutoff control unit 47 controls the cutoff unit 8 to cut off the power supply from the power feeding unit 41 to the power receiving unit 21. More specifically, when the detection information detected by the abnormality detection unit 24 is acquired by the second communication unit 45, the cutoff control unit 47 compares the temperature indicated in the detection information with a threshold value. When the temperature is equal to or higher than the threshold value, the cutoff control unit 47 determines that an abnormality has occurred in the power receiving device 2. Then, the interruption control unit 47 controls the interruption unit 8 to open the contacts of the interruption unit 8. Further, when the temperature is less than the threshold value, the cutoff control unit 47 determines that no abnormality has occurred in the power receiving device 2. Then, the interruption control unit 47 keeps the contact of the interruption unit 8 closed. The threshold value is recorded in advance in the memory of the cutoff control unit 47, for example. The process of comparing the temperature indicated in the detection information with the threshold value may be performed by the power receiving device 2. In this case, the cutoff control unit 47 controls the cutoff unit 8 based on the comparison result of the detection information and the threshold value acquired by the second communication unit 45.

For example, when a contact failure occurs between the power feeding unit 41 and the power receiving unit 21, the resistance value between the power feeding unit 41 and the power receiving unit 21 may increase, and the temperature of the power receiving unit 21 may rise. In addition, when the screw forming the connecting portion 22 is not sufficiently tightened, the resistance value between the power receiving portion 21 and the first electric wire 6 increases due to poor contact between the power receiving portion 21 and the first electric wire 6, and the connection is increased. The temperature of the power receiving portion 21 and the first electric wire 6 around the portion 22 and the connecting portion 22 may rise. Further, if the first electric wire 6 is broken or semi-broken inside the passage hole 204, the resistance value of the first electric wire 6 increases, and the temperature of the first electric wire 6 rises inside the passage hole 204. There are cases. The abnormality detection unit 24 can detect the temperature increased in these cases as detection information. Then, the cutoff control unit 47 can cut off the power supply from the power feeding unit 41 to the power receiving unit 21 according to the detection information detected by the abnormality detection unit 24.

The second body 5 is provided separately from the first body 23. The second body 5 accommodates at least a part of the two power supply parts 41 and at least a part of the pair of power supply terminal parts 42.

FIG. 3 is a perspective view of the power feeding device 4 attached to the construction surface 500. In the present embodiment, the power feeding device 4 is an embedded wiring device that is attached to the mounting frame of the large rectangular continuous wiring device that is standardized by the Japanese Industrial Standards. Specifically, the power feeding device 4 is attached to the construction surface 500 via the attachment frame. Here, the mounting frame is fixed to the construction surface 500 via the embedded box or directly. That is, by fixing the attachment frame to the construction surface 500, the power feeding device 4 is attached to the construction surface 500 via the attachment frame. The decorative plate 501 is attached to the attachment frame, and the power feeding device 4 is exposed from the inside of the decorative plate 501 as shown in FIG. Here, the mounting frame may be a separate body from the second body 5 of the power feeding device 4, or may be integral with the second body 5.

As shown in FIG. 4, the second body 5 has an outer body 51, an outer cover 52, an inner cover 53, an inner block 54, and a terminal block 55. The second body 5 is configured by combining the outer body 51, the outer cover 52, the inner cover 53, the inner block 54, and the terminal block 55. The second body 5 is made of synthetic resin.

In the following description, in the direction in which the outer cover 52 and the outer body 51 are arranged side by side, the outer cover 52 side as viewed from the outer body 51 is referred to as “front” of the power feeding device 4, and the outer body 51 side as viewed from the outer cover 52. Is referred to as “after” the power supply device 4. However, these directions are not intended to limit the use direction of the power feeding device 4.

The outer body 51 is formed in a box shape having an open front surface. The inner block 54 is smaller than the outer body 51, and is formed in a box shape having an open front surface. The two power feeding parts 41 and the pair of power feeding terminal parts 42 are housed in the inner block 54, and the inner block 54 is housed in the outer body 51. An inner cover 53 is attached to the front surface of the outer body 51. The outer cover 52 is attached to the front surface of the inner cover 53. Here, in the portion of the inner cover 53 that faces the inner block 54, an opening window 531 that penetrates in the front-rear direction is formed. Therefore, the two power feeding portions 41 and the pair of power feeding terminal portions 42 are housed between the inner block 54 and the outer cover 52.

The outer cover 52 is formed with two pairs of insertion ports 521. The two pairs of insertion ports 521 correspond to the four blade receivers 411 of the two power feeding units 41 in a one-to-one correspondence. Each insertion port 521 is provided at a position facing the corresponding blade receiver 411. Each of the pair of plug blades 211 (see FIG. 2) of the power receiving device 2 is inserted into the blade receiver 411 via the insertion port 521.

The power feeding device 4 further includes a ground member 561. A ground insertion hole 522 is formed in the outer cover 52 at a position facing the ground member 561. The ground member 561 is grounded to the reference potential point. When the power receiving device 2 is a plug with a ground electrode, the ground pin of the plug with a ground electrode is inserted into the ground insertion hole 522 and electrically connected to the ground member 561.

The terminal block 55 is housed in the outer body 51. The terminal block 55 has a pair of input terminals to which the pair of second electric wires 7 are electrically connected. A pair of insertion ports for inserting the pair of second electric wires 7 from the rear of the outer body 51 is formed on the rear surface of the outer body 51. The pair of second electric wires 7 is electrically connected to the pair of input terminals through the pair of insertion ports.

As shown in FIG. 1, the breaker 9 includes an opening/closing portion 91. Further, the breaker 9 includes a pseudo current generator 92. The opening/closing unit 91 has a contact that opens/closes, and switches between a state in which power is supplied from the power supply V1 and a state in which no power is supplied to the power supply device 4. The pseudo current generating unit 92 has a circuit for generating a pseudo current (overcurrent or leakage current) in the electric path connected to the breaker 9. The magnitude of the overcurrent generated by the pseudo current generator 92 is smaller than the current capacity of the electric circuit. The leakage current is generated in the ground wire of the breaker 9, for example. When the pseudo current generation unit 92 generates a pseudo current (overcurrent or leakage current), the breaker 9 detects the overcurrent or leakage current and opens the opening/closing unit 91. As a result, the power supply from the power source V1 to the power supply device 4 is cut off.

The power feeding device 4 further includes a signal output unit 48. When the detection information received by the second communication unit 45 indicates an abnormality, the signal output unit 48 outputs an instruction signal Sig1 that instructs the breaker 9 to generate a pseudo current (overcurrent or leakage current). .. Specifically, when the cutoff control unit 47 compares the detection information with the threshold value and determines that an abnormality has occurred in the power receiving device 2, the signal output unit 48 outputs the instruction signal Sig1 to the breaker 9. .. In response to this, the pseudo current generator 92 generates an overcurrent or a leakage current. Then, the breaker 9 detects the overcurrent or the leakage current, opens the opening/closing unit 91, and cuts off the power supply from the power supply V1 to the power feeding device 4.

In this embodiment, a control device 102 is provided as an external configuration of the wiring system 1. The control device 102 is, for example, a controller configured to control or monitor a device compatible with a HEMS (Home Energy Management System). The electric device main body 101 connected to the pair of first electric wires 6 of the power receiving device 2 performs wired communication or wireless communication with the control device 102. The control device 102 controls the electric device body 101.

The first communication unit 25 and the second communication unit 45 have a function as a result output unit that outputs the detection information detected by the abnormality detection unit 24 to the control device 102. For example, the first communication unit 25 first outputs the detection information to the second communication unit 45. The second communication unit 45 outputs the detection information received from the first communication unit 25 to the control device 102. Note that the first communication unit 25 may directly output the detection information to the control device 102 without the intervention of the second communication unit 45. Further, there may be a relay device that relays communication between the control device 102 and the first communication unit 25 and the second communication unit 45. Communication between the first communication unit 25 and the second communication unit 45 and the control device 102 is performed by an appropriate communication method such as wired communication or wireless communication.

The control device 102 communicates with, for example, one or more electric device main bodies 101. The control device 102 controls one or more electric device main bodies 101 according to the detection information detected by the abnormality detection unit 24. For example, when the detection information detected by the abnormality detection unit 24 included in the power receiving device 2 connected to a certain electric device body 101 indicates an abnormality in the power receiving device 2, the control device 102 causes the power switch of the electric device body 101 to switch. Turn off.

As described above, in the wiring system 1 according to the present embodiment, the power receiving device 2 is provided with the abnormality detection unit 24 that detects information about an abnormality in the power receiving device 2. Therefore, it is possible to improve the accuracy of detecting an abnormality that occurs in the power receiving device 2.

(Modification 1 of the embodiment)
Hereinafter, the wiring system 1A according to the modified example 1 of the embodiment will be described with reference to FIG. The same components as those in the embodiment are designated by the same reference numerals and the description thereof will be omitted.

In the first modification, the configurations of the first communication unit 25A of the power receiving device 2A and the second communication unit 45A of the power feeding device 4A are the configurations of the first communication unit 25 and the second communication unit 45 of the embodiment, respectively. Is different from. The first communication unit 25A has two terminal portions 251. The second communication unit 45A has two insertion portions 451 into which the two terminal portions 251 can be inserted.

The two terminal portions 251 are provided separately from the power receiving portion 21. Each of the two terminal portions 251 is a pin terminal. That is, each of the two terminal portions 251 is formed in a cylindrical shape from a conductive material such as metal. The two terminal parts 251 are electrically connected to the abnormality detection part 24. The two terminal portions 251 are exposed to the outside of the first body 23.

Each of the two insertion parts 451 is formed in a cylindrical shape from a conductive material such as metal. One end of each of the two insertion parts 451 is exposed to the outside of the second body 5. The two insertion portions 451 correspond to the two terminal portions 251 in a one-to-one correspondence. By inserting the terminal portion 251 corresponding to the inside of each insertion portion 451, each insertion portion 451 and the corresponding terminal portion 251 are electrically connected. More specifically, the power receiving unit 21 is inserted into the two insertion ports 521 of the power feeding device 4A, and at the same time, the corresponding terminal unit 251 is inserted inside each insertion unit 451. The two insertion sections 451 are electrically connected to the cutoff control section 47.

When the two terminal parts 251 are electrically connected to the two insertion parts 451 of the power supply device 4A, the two terminal parts 251 output the detection information detected by the abnormality detection part 24 to the power supply device 4A. That is, the detection information is output from the abnormality detection unit 24 to the cutoff control unit 47 via the two terminal portions 251 and the two insertion portions 451. When the detection information indicates an abnormality, the shutoff control unit 47 controls the shutoff unit 8 to shut off the power supply from the power feeding unit 41 to the power receiving unit 21.

According to the present modification, the power receiving device 2A outputs the detection information to the power feeding device 4A by wired communication via the two terminal parts 251 and the two inserting parts 451. Therefore, compared with the case of outputting by wireless communication. Thus, it is easy to stabilize the communication from the power receiving device 2A to the power feeding device 4A.

In addition, in the present modification, the cutoff control unit 47 may have a function as a result output unit that outputs the detection information to the control device 102 (see FIG. 1 ). Communication between the cutoff control unit 47 and the control device 102 may be performed by an appropriate communication method such as wired communication or wireless communication.

(Modification 2 of the embodiment)
Hereinafter, the wiring system 1B according to the second modification of the embodiment will be described with reference to FIGS. The same components as those in the embodiment are designated by the same reference numerals and the description thereof will be omitted.

Comparing the power receiving unit 21 of the power receiving device 2 of the embodiment and the power receiving unit 21B of the power receiving device 2B of the second modification, one of the pair of blades 211 of the embodiment has a connection pin in the second modification. Has been replaced by 29. In the second modification, the power receiving unit 21B includes one blade 211 and a first conductor portion 291 that is a part of the connection pin 29. In addition, comparing the power feeding unit 41 of the power feeding device 4 of the embodiment and the power feeding unit 41B of the power feeding device 4B of the second modification, one of the pair of blade receivers 411 of the embodiment in the second modification. It is replaced by a pin receiver 49. In the second modification, the power feeding unit 41B includes one blade receiver 411 and a first contact plate 491 that is a part of the pin receiver 49.

The connection pin 29 is a single-headed plug. The connection pin 29 has a first conductor portion 291, a second conductor portion 292, a third conductor portion 293, a first insulating portion 294, and a second insulating portion 295. Each of the first to third conductor portions 291 to 293 exposes a conductive surface made of metal or the like. Each of the first insulating portion 294 and the second insulating portion 295 has electrical insulation and is formed in a ring shape. In the connection pin 29, a first conductor portion 291, a first insulating portion 294, a second conductor portion 292, a second insulating portion 295, and a third conductor portion 293 are provided in order from the side closer to the connecting portion 22. ing. The first conductor portion 291 and the second conductor portion 292 are electrically insulated by the first insulating portion 294. The second insulating portion 295 electrically insulates between the second conductor portion 292 and the third conductor portion 293.

The first conductor portion 291 is electrically connected to one of the pair of first electric wires 6 (electric wire on the N pole side). The second conductor portion 292 and the third conductor portion 293 are electrically connected to the abnormality detecting portion 24. The second conductor portion 292 functions as a positive phase (Hot) output terminal of the signal output from the abnormality detection portion 24, and the third conductor portion 293 is the ground terminal of the signal output from the abnormality detection portion 24. Function as.

The pin receiver 49 is a jack that fits the connection pin 29 as a single-headed plug. The pin receiver 49 has an insertion portion 495 recessed from the surface of the second body 5. The pin receiver 49 has a first contact plate 491, a second contact plate 492, and a third contact plate 493 inside the insertion portion 495. Each of the first to third contact plates 491 to 493 is a leaf spring made of a metal plate or the like. The first contact plate 491 is electrically connected to one (N pole) of the pair of power supply terminal portions 42. The second contact plate 492 and the third contact plate 493 are electrically connected to the interruption control unit 47.

When the connection pin 29 is inserted into the insertion portion 495, as shown in FIG. 7, the first contact plate 491 becomes the first conductor part 291, the second contact plate 492 becomes the second conductor part 292, and The third contact plates 493 are in contact with and electrically connected to the third conductor portions 293, respectively. Thereby, one of the pair of power supply terminal portions 42 of the power supply device 4B is electrically connected to the first electric wire 6 via the first contact plate 491 and the first conductor portion 291. Power can be fed from the power feeding device 4B to the power receiving device 2B. Further, the abnormality detection unit 24 is electrically connected to the cutoff control unit 47 via the second and third conductor portions 292 and 293 and the second and third contact plates 492 and 493 to detect the abnormality. A signal can be output from the unit 24 to the cutoff control unit 47.

That is, the second and third conductor portions 292 and 293 of the connection pin 29 function as a first communication unit that outputs the detection information detected by the abnormality detection unit 24 to the power feeding device 4B. The second and third contact plates 492 and 493 of the pin receiver 49 function as a second communication unit that receives input of detection information.

In addition, the power receiving section 21B includes one blade 211 and the first conductor section 291, and the second conductor section 292 and the third conductor section 293 are not included in the power receiving section 21B. The second conductor portion 292 and the third conductor portion 293 function as a terminal portion that is electrically connected to the pin receiver 49 of the power feeding device 4B and outputs detection information to the power feeding device 4B. The second conductor portion 292 and the third conductor portion 293 are integrated with the power receiving portion 21B (first conductor portion 291). In other words, the second conductor portion 292, the third conductor portion 293, and the first conductor portion 291 are integrated in one connection pin 29. Further, the second conductor portion 292 and the third conductor portion 293 are electrically insulated from the power receiving portion 21B (first conductor portion 291).

According to the second modification, the terminal portion (the second conductor portion 292 and the third conductor portion 293) for outputting the detection information to the power feeding device 4B is integrated with the power receiving portion 21B. Therefore, the number of connection points between the power receiving device 2B and the power feeding device 4B can be reduced as compared with the case where the terminal portion is provided separately from the power receiving portion 21B. That is, the number of blades or connecting pins that connect the power receiving device 2B and the power feeding device 4B can be reduced.

(Other modifications of the embodiment)
Next, other modifications of the embodiment will be listed. The following modified examples may be implemented in appropriate combination. In addition, the following modified examples may be realized by appropriately combining with the modified example 1 or the modified example 2 of the embodiment.

The power receiving unit 21 is not limited to the configuration having the pair of blades 211, and may be, for example, a connector. Therefore, the power receiving device 2 is not limited to the plug including the pair of blades 211, and may be, for example, a device including a connector as the power receiving unit 21. Further, the power feeding device 4 is not limited to an outlet to which the pair of blades 211 are electrically connected, and is, for example, a device including a connector electrically connectable to a connector as the power receiving unit 21. Good. Further, the power feeding device 4 may be, for example, a table tap or a hook ceiling. Further, the number of the blades 211 of the power receiving unit 21 may be three or more. The power receiving unit 21 and the power feeding unit 41 may be pins and jacks.

The power feeding device 4 is not limited to the configuration (two outlet type outlets) capable of connecting two power receiving devices 2 and may have a configuration capable of connecting one power receiving device 2 or three or more power receiving devices 2.

Although the power supply device 4 of the embodiment is a single-phase outlet, the power supply device 4 is not limited to this and may be a three-phase outlet. Further, although the power receiving device 2 of the embodiment is a single-phase plug, the present invention is not limited to this, and the power receiving device 2 may be a three-phase plug.

The function as a result output unit that outputs the detection information detected by the abnormality detection unit 24 to the control device 102 is not limited to being included in the first communication unit 25 and the second communication unit 45, and may be the first communication unit 25. The communication unit 25 and the second communication unit 45 may have a different configuration. That is, the first communication unit 25, the second communication unit 45, and the result output unit may be separate bodies.

The temperature sensor (abnormality detection unit 24) may include not only the power receiving device 2 but also the power feeding device 4. The power supply device 4 may include, for example, a blade sensor 411 or a temperature sensor around the blade sensor 411. In this case, a temperature sensor of the power feeding device 4 can detect a temperature rise of the blade receiver 411 due to poor contact between the blade receiver 411 and the stopper blade 211. When an abnormality is detected in either the temperature sensor of the power receiving device 2 or the temperature sensor of the power feeding device 4, the power supply from the power feeding device 4 to the power receiving device 2 may be cut off.

The abnormality detection unit 24 is not limited to the temperature sensor, and may be, for example, a sensor that detects overcurrent or leakage. That is, the abnormality detected by the abnormality detection unit 24 is not limited to overheating (being a temperature exceeding the rated temperature).

The configuration of the connection detection unit 26 that detects whether or not the power reception unit 21 is electrically connected to the power supply device 4 is not limited to the configuration including the reed switch. The connection detection unit 26 may detect whether or not the power reception unit 21 is electrically connected to the power supply device 4 by detecting whether or not a current flows through the first electric wire 6. Alternatively, the connection detection unit 26 detects whether or not the first communication unit 25 has been supplied with power by wireless power transmission, and thus whether or not the power reception unit 21 is electrically connected to the power supply device 4. May be detected.

In addition, the connection detection unit 26 is a power supply device 4 in which the target connected to the power reception unit 21 has a function of cutting off the power supply from the power supply device 4 to the power reception unit 21 (hereinafter, referred to as “interruption function”). It may be detected whether there is a power supply device having no cutoff function. For example, the power supply device 4 having a cutoff function may be provided with a permanent magnet, and the connection detection unit 26 may include a reed switch. In this case, the reed switch operates by approaching the permanent magnet, and the reed switch does not operate even if the power receiving unit 21 is connected to the power supply device that does not include the permanent magnet. Therefore, the connection detection unit 26 can detect whether the target connected to the power reception unit 21 is a power supply device having a cutoff function. When the power receiving unit 21 is connected to the power supply device that does not have the cutoff function, the first communication unit 25 does not have to perform the operation for starting the communication with the second communication unit 45.

It is not an essential configuration of the power receiving device 2 that the plurality of functions of the power receiving device 2 are integrated in one housing. Good. Similarly, the constituent elements of the power supply device 4 may be distributed and provided in a plurality of housings.

(Summary)
The following aspects are disclosed from the embodiments and the like described above.

The power reception device 2 (or 2A, 2B) according to the first aspect includes a power reception unit 21 (or 21B), a connection unit 22, an abnormality detection unit 24, and a communication unit (first communication units 25, 25A or 2 and third conductor portions 292, 293). The power receiving unit 21 (or 21B) is electrically connected to the power feeding device 4 (or 4A, 4B). The connecting portion 22 electrically connects the power receiving portion 21 (or 21B) and the electric wire (first electric wire 6). The abnormality detection unit 24 detects information about abnormality regarding at least one of the power reception unit 21 (or 21B), the connection unit 22, and the electric wire. The communication unit outputs the detection information detected by the abnormality detection unit 24 to the power supply device 4 (or 4A, 4B).

According to the above configuration, it is possible to improve the accuracy of detecting an abnormality occurring in the power receiving device 2 (or 2A, 2B) as compared with the case where the abnormality detecting unit 24 is provided in the power feeding device 4 (or 4A, 4B). In addition, the detection information can be output to the power supply device 4 (or 4A, 4B).

Further, in the power receiving device 2 (or 2A, 2B) according to the second aspect, in the first aspect, the abnormality detection unit 24 is a temperature sensor that detects the temperature as the detection information. The temperature sensor detects the temperature of at least one of the power receiving unit 21 (or 21B), the connecting unit 22, and the electric wire (first electric wire 6).

According to the above configuration, poor contact between the power receiving unit 21 (or 21B) and the power feeding device 4 (or 4A, 4B), the power receiving unit 21 (or 21B) in the connection unit 22 and the electric wire (first electric wire 6). The temperature sensor can detect the temperature rise of the power receiving device 2 (or 2A, 2B) due to the poor connection of the wire, the wire break or the half wire break, or the like.

Moreover, the power receiving device 2 (or 2A, 2B) according to the third aspect further includes a body (first body 23) in the second aspect. The body accommodates at least a part of power reception unit 21 (or 21B) and connection unit 22. A through hole 204 through which an electric wire (first electric wire 6) is inserted is formed in the body (first body 23). The temperature sensor (abnormality detection unit 24) detects the temperature of a portion of the electric wire inside the passage hole 204.

According to the above configuration, the temperature sensor detects the temperature rise of the power receiving device 2 (or 2A, 2B) due to the disconnection or the partial disconnection of the electric wire (first electric wire 6) inside the passage hole 204. it can.

Further, in the power receiving device 2 (or 2A, 2B) according to the fourth aspect, in any one of the first to third aspects, the power receiving unit 21 (or 21B) includes the blade 211. The blade 211 is inserted into an outlet 521 of an outlet as the power supply device 4 (or 4A, 4B).

According to the above configuration, the abnormality detector 24 can detect whether or not there is an abnormality in the power receiving device 2 (or 2A, 2B) due to poor contact between the outlet and the blade 211.

In the power receiving device 2 according to the fifth aspect, in any one of the first to fourth aspects, the communication unit (first communication unit 25) wirelessly communicates the detection information detected by the abnormality detection unit 24. Output to the power supply device 4.

According to the above configuration, it is possible to save the trouble of connecting the communication unit (first communication unit 25) and the power feeding device 4 by wire.

Moreover, in the power receiving device 2A (or 2B) according to the sixth aspect, in any one of the first to fourth aspects, the communication unit (the first communication unit 25A or the second and third conductor portions 292, 293) has a terminal portion (terminal portion 251 or second and third conductor portions 292, 293). The terminal portion is electrically connected to the power feeding device 4A (or 4B) and outputs the detection information to the power feeding device 4A (or 4B).

According to the above configuration, it is easier to stabilize the communication as compared with the case where the communication unit transmits the detection information to the power feeding device 4A (or 4B) by wireless communication.

Further, in the power receiving device 2A according to the seventh aspect, in the sixth aspect, the terminal portion 251 is provided separately from the power receiving portion 21.

According to the above configuration, it is easier to ensure the insulation between the terminal portion 251 and the power receiving portion 21, as compared with the case where the terminal portion 251 and the power receiving portion 21 are integrated.

Further, in the power receiving device 2B according to the eighth aspect, in the sixth aspect, the terminal portions (second and third conductor portions 292, 293) are integral with the power receiving portion 21B, and It is electrically insulated against.

According to the above configuration, as compared with the case where the terminal portions (second and third conductor portions 292, 293) are provided separately from the power receiving portion 21B, the connection location between the power receiving device 2B and the power feeding device 4B. Can be reduced.

Further, the power receiving device 2 (or 2A, 2B) according to the ninth aspect further includes a connection detection unit 26 in any one of the first to eighth aspects. The connection detection unit 26 detects whether the power reception unit 21 (or 21B) is electrically connected to the power feeding device 4 (or 4A, 4B). When the connection detection unit 26 detects that the power reception unit 21 (or 21B) is electrically connected to the power supply device 4 (or 4A, 4B), the communication unit (first communication unit 25, 25A or second, The third conductor portions 292, 293) start communication with the power feeding device 4 (or 4A, 4B).

According to the above configuration, the amount of communication between the communication unit and the power supply device 4 (or 4A, 4B) is greater than that when communication between the communication unit and the power supply device 4 (or 4A, 4B) is performed, for example. Can be reduced.

Further, in the power receiving device 2 according to the tenth aspect, in any one of the first to ninth aspects, the communication unit (first communication unit 25A) receives power supply by wireless power transmission.

According to the above configuration, in the power receiving device 2, the power supply line to the communication unit (first communication unit 25A) can be omitted.

In addition, the power receiving device 2 according to the eleventh aspect further includes a result output section (first communication section 25) in any one of the first to tenth aspects. The result output unit outputs the detection information detected by the abnormality detection unit 24 to the control device 102. The control device 102 controls the electric device body 101 that receives power supply via the power receiving device 2.

According to the above configuration, the control device 102 can execute processing according to the detection information detected by the abnormality detection unit 24.

The configuration other than the first aspect is not an essential configuration for the power receiving device 2 (or 2A, 2B) and can be appropriately omitted.

Further, the power feeding device 4 (or 4A, 4B) according to the twelfth aspect is provided in the power receiving unit 21 (or 21B) of the power receiving device 2 (or 2A, 2B) according to any one of the first to eleventh aspects. A power feeding unit 41 (or 41B) electrically connected, a power feeding terminal unit 42, and a second communication unit 45 (second communication units 45, 45A or second and third contact plates 492, 493). , Is provided. The power feeding terminal portion 42 electrically connects the power feeding portion 41 (or 41B) and the second electric wire 7. The second electric wire 7 is provided separately from the first electric wire 6 as an electric wire. The second communication unit is provided separately from the first communication unit (the first communication unit 25, 25A or the second and third conductors 292, 293) as the communication unit, and is provided from the first communication unit. Accept the input of output detection information.

According to the above configuration, it is possible to improve the accuracy of detecting an abnormality occurring in the power receiving device 2 (or 2A, 2B) as compared with the case where the abnormality detecting unit 24 is provided in the power feeding device 4 (or 4A, 4B). In addition, the detection information can be output to the power supply device 4 (or 4A, 4B).

In addition, the power feeding device 4 (or 4A, 4B) according to the thirteenth aspect further includes the shutoff unit 8 and a shutoff control unit 47 in the twelfth aspect. The cutoff unit 8 cuts off the power supply from the power feeding unit 41 (or 41B) to the power receiving unit 21 (or 21B). The interruption control unit 47 controls the interruption unit 8 when the detection information received by the second communication unit (the second communication units 45, 45A or the second and third contact plates 492, 493) indicates an abnormality. Then, the power supply from the power feeding unit 41 (or 41B) to the power receiving unit 21 (or 21B) is cut off.

According to the above configuration, the power supply from the power supply unit 41 (or 41B) to the power reception unit 21 (or 21B) can be interrupted by the interruption unit 8 of the power supply device 4 (or 4A, 4B). Therefore, compared to the case where the power supply device 4 (or 4A, 4B) and the power receiving device 2 (or 2A, 2B) are used for the interruption, the interruption can be performed more quickly.

The power supply device 4 (or 4A, 4B) according to the fourteenth aspect further includes a signal output unit 48 in the twelfth aspect. When the detection information received by the second communication unit (the second communication units 45, 45A or the second and third contact plates 492, 493) indicates an abnormality, the signal output unit 48 outputs a signal to the breaker 9. , And outputs an instruction signal Sig1 instructing generation of a pseudo current. The breaker 9 is electrically connected to the power feeding section 41 (or 41B). The breaker 9 has a pseudo current generator 92. The pseudo current generator 92 generates a pseudo current.

According to the above configuration, the breaker 9 cuts off the electric path by generating a pseudo current in the breaker 9. Thereby, the power supply from the power supply unit 41 (or 41B) to the power reception unit 21 (or 21B) can be cut off. Therefore, the configuration for cutting off the power supply from the power feeding unit 41 (or 41B) to the power receiving unit 21 (or 21B) does not have to be provided separately from the breaker 9.

In addition, the power supply device 4 according to the fifteenth aspect further includes a result output section (second communication section 45) according to any one of the twelfth to fourteenth aspects. The result output unit outputs the detection information received by the second communication unit 45 to the control device 102. The control device 102 controls the electric device body 101 that receives power supply via the power receiving device 2.

According to the above configuration, the control device 102 can execute processing according to the detection information of the abnormality detection unit 24.

The configuration other than the twelfth aspect is not an essential configuration for the power feeding device 4 (or 4A, 4B) and can be appropriately omitted.

The wiring system 1 (or 1A, 1B) according to the sixteenth aspect includes a power feeding device 4 (or 4A, 4B) according to any one of the twelfth to fifteenth aspects, and a power receiving device 2 (or 2A, 2B.

According to the above configuration, it is possible to improve the accuracy of detecting an abnormality occurring in the power receiving device 2 (or 2A, 2B) as compared with the case where the abnormality detecting unit 24 is provided in the power feeding device 4 (or 4A, 4B). In addition, the detection information can be output to the power supply device 4 (or 4A, 4B).

1, 1A, 1B Wiring system 2, 2A, 2B Power receiving device 4, 4A, 4B Power feeding device 5 Second body 6 First electric wire 7 Second electric wire 8 Breaking part 9 Breaker 21, 21B Power receiving part 22 Connection part 23 First body 24 Abnormality detection unit 25, 25A First communication unit (result output unit)
26 Connection Detecting Sections 41, 41B Power Supply Section 42 Power Supply Terminal Sections 45, 45A Second Communication Section (Result Output Section)
47 Break-off control unit 48 Signal output unit 92 Pseudo current generation unit 101 Electric device body 102 Control device 204 Passage hole 211 Plug blade 251 Terminal portion 292 Second conductor portion (first communication portion, terminal portion)
293 Third conductor part (first communication part, terminal part)
492 Second contact plate 493 Third contact plate 521 Insert port Sig1 Instruction signal

Claims (16)

A power receiving unit electrically connected to the power feeding device,
A connecting portion for electrically connecting the power receiving portion and the electric wire,
An abnormality detection unit that detects information about an abnormality relating to at least one of the power reception unit, the connection unit, and the electric wire;
A communication unit that outputs the detection information detected by the abnormality detection unit to the power supply device,
Power receiving device. The abnormality detection unit is a temperature sensor that detects a temperature as the detection information,
The temperature sensor detects a temperature of at least one of the power receiving unit, the connecting unit, and the electric wire,
The power receiving device according to claim 1. Further comprising a body that houses at least a part of the power receiving unit and the connection unit,
The body has a through hole through which the electric wire is passed,
The temperature sensor detects a temperature of a portion of the electric wire inside the passage hole,
The power receiving device according to claim 2. The power receiving unit includes a blade inserted into an outlet of an outlet as the power supply device,
The power receiving device according to claim 1. The communication unit outputs the detection information to the power supply device by wireless communication,
The power receiving device according to claim 1. The communication unit has a terminal unit that is electrically connected to the power supply device and outputs the detection information to the power supply device.
The power receiving device according to claim 1. The terminal portion is provided separately from the power receiving portion,
The power receiving device according to claim 6. The terminal portion is integral with the power receiving portion, and is electrically insulated from the power receiving portion,
The power receiving device according to claim 6. Further comprising a connection detection unit for detecting whether the power receiving unit is electrically connected to the power supply device,
When the connection detection unit detects that the power receiving unit is electrically connected to the power supply device, the communication unit starts communication with the power supply device,
The power receiving device according to claim 1. The communication unit receives power supply by wireless power transmission,
The power receiving device according to claim 1. The detection information further includes a result output unit that outputs the detection information to a control device that controls an electric device body that is supplied with power via the power receiving device.
The power receiving device according to claim 1. A power supply unit electrically connected to the power receiving unit of the power receiving device according to claim 1.
A power supply terminal section for electrically connecting the power supply section and a second electric wire provided separately from the first electric wire as the electric wire;
A second communication unit that is provided separately from the first communication unit as the communication unit and that receives an input of the detection information output from the first communication unit.
Power supply device. A cutoff unit that cuts off power supply from the power supply unit to the power reception unit,
A shutoff control unit that controls the shutoff unit to shut off the power supply from the power feeding unit to the power receiving unit when the detection information received by the second communication unit indicates the abnormality;
The power supply device according to claim 12. The pseudo current generating unit generates a pseudo current when the detection information received by the second communication unit indicates the abnormality, and the pseudo current is supplied to a breaker electrically connected to the power feeding unit. Further comprising a signal output unit for outputting an instruction signal for instructing the generation of
The power supply device according to claim 12. The detection unit further includes a result output unit that outputs the detection information received by the second communication unit to a control device that controls an electric device body that is supplied with power via the power receiving device.
The power supply device according to any one of claims 12 to 14. A power supply apparatus according to any one of claims 12 to 15,
And a power receiving device,
Wiring system.

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