• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The power supply device (10) for a wall outlet comprises: - a first DC-DC power converter (24), comprising a first output (28) and a second output (30); a second DC-DC power converter (50) whose input is connected to the second output; a first capacitor (Cin) connected to the input of the first converter, a second capacitor (Cmain) connected to the first output, a third capacitor (Cfilter) connected to the second output. The first output of the first converter and the output (58) of the second converter are connected in series to form an output (60) of the supply device capable of delivering a DC voltage, the supply device comprising at least a fourth capacitor ( Csmall, Cout) connected to the output of the second converter or the output of the power supply device.
    公开号:FR3071979A1
    申请号:FR1759190
    申请日:2017-10-02
    公开日:2019-04-05
    发明作者:Jerome BRENGUIER
    申请人:Schneider Electric Industries SAS；
    IPC主号:
    专利说明:

    Power supply device for a wall socket provided with a connector and wall socket provided with a connector and comprising such a power supply device
    The present invention relates to a power supply device for a wall outlet provided with a connector. The invention also relates to a wall outlet provided with a connector and comprising such a power supply device.
    There are electrical wall outlets that include a USB-type connector, to allow recharging of mobile communication devices, such as telephones and / or tablet computers equipped with a connector, with direct electric current.
    Such wall sockets are intended to be installed in buildings, for example buildings for domestic use or in public places such as airport waiting rooms, restaurants, hotels, and many other examples. .
    These connectors are generally USB connectors compatible with the "USB Power Delivery" standard. They are thus able to allow the electrical supply of a device according to several levels of voltage and / or electrical intensity.
    For this purpose, these wall sockets are connected to a power supply network, for example domestic, which supplies them with an alternating electrical voltage, generally single-phase. The sockets include a power supply device capable of supplying, from the supply voltage received and intended for the USB connector, a regulated continuous supply voltage.
    The known wall outlets are not entirely satisfactory, however, due to certain limitations of their power supply device.
    Typically, existing low power supplies include a power converter associated with passive components, such as capacitors.
    For example, the input of the converter is filtered using one or more capacitors of high capacity, generally greater than several tens of microfarad. These capacitors are generally of electrolytic technology based on aluminum, for reasons of cost but also in view of the important values of required capacity. The converter is regulated using a feedback loop which measures the voltage at the output of the converter. This loop can include an opto-coupler which contributes to the electrical isolation of the converter.
    These known power supplies nevertheless have a certain number of drawbacks in the present case.
    On the one hand, these power supplies have a large size, in particular because of the electrolytic capacitors, which is not compatible with the fact that the dimensions of the socket are constrained, in particular by the size of wall cavities intended to receive them. Indeed, for reasons of compatibility with existing buildings, it is desirable that such wall sockets have dimensions comparable to those of existing wall sockets. However, their dimensions are often defined by standards from which it is difficult to derogate.
    On the other hand, these power supplies are not very efficient, so that a significant part of the power supply received by the system is dissipated in the form of heat. However, as the outlet is at least partially embedded in a wall, it is located in a confined space, which complicates the evacuation of the dissipated heat, all the more since the walls of buildings typically include insulation devices. thermal, which further complicates heat dissipation.
    In addition, certain components of these power supplies, such as the electrolytic capacitors or the Optocoupler, have a limited lifespan, for example in some cases less than three years, which reduces the lifespan of the socket. This is unacceptable, since the socket is intended to be permanently fixed in a wall and is not intended to be replaced regularly. The service life of these components is even shorter when they have to operate at a high temperature, as is often the case when the plug is fixed to a wall, due to the difficulties in dissipating the dissipated heat, for the reasons above.
    It is these drawbacks that the invention intends to remedy more particularly, by proposing an improved power supply for a USB wall socket, having a compact shape, limited heat dissipation and an increased service life.
    To this end, the invention relates to an electrical supply device for a wall outlet provided with an electrical connector, this electrical supply device comprising:
    - a rectifier, intended to be supplied by a source of alternating electric voltage;
    - a first DC-DC power converter, comprising:
    • an input connected to the rectifier output;
    • a first output and a second output, the average electric power delivered on the second output being less than the average electric power delivered on the first output;
    - a second DC-DC power converter, the input of the second power converter being connected to the second output of the first power converter;
    - a first filtering capacitor connected to the input of the first power converter, a second filtering capacitor connected to the first output, a third filtering capacitor connected to the second output;
    and characterized in that the first output of the first power converter and the output of the second power converter are connected in series to form an output of the power supply device capable of supplying a DC supply voltage, the power supply device electric comprising at least a fourth filtering capacitor connected either to the output of the second converter or to the output of the electrical supply device.
    Thanks to the invention, the association of the two power converters makes it possible to supply the power connector reliably and overcoming the aforementioned drawbacks.
    As the second converter is connected to the second output, on which transits an average power which is only a small fraction of the output power of the first converter, then the dimensioning of the second converter can be reduced. Its size is therefore reduced. The losses due to the placing in series of two converters are also reduced. This second converter nevertheless makes it possible to achieve sufficiently precise regulation of the output voltage, which makes it possible to remove all or part of the feedback loop commonly used.
    Thanks to the arrangement of the two converters and the two outputs of the first converter, the power supply device can provide a stabilized voltage at the output, even when the AC supply voltage goes through a zero value. On the contrary, known power supply devices do this by storing energy in the capacitor located at the input of the first converter, which requires that this capacitor has a high capacity. Thanks to the invention, since this storage is not necessary, it is possible to use capacitors having much lower capacitance values, which makes it possible to use capacitor technologies which are more reliable and less bulky than the electrolytic capacitors usually used.
    According to advantageous but not compulsory aspects of the invention, such a device can incorporate one or more of the following characteristics, taken in isolation or according to any technically admissible combination:
    - The fourth filter capacitor is connected to the output of the second power converter and in that the power supply device comprises a fifth filter capacitor connected to its output.
    - The first power converter is a “flyback” type converter.
    - The second power converter is a “buck” or “buck-boost” type converter.
    - The second power converter is configured so that the voltage delivered at the output of this second power converter is complementary to the voltage it receives on its input.
    - The capacitors are ceramic technology capacitors or tantalum technology or polymer technology.
    - The first capacitor has a capacity of less than 1 millifarad.
    - The average electric power delivered on the second output is at least two times less than the average electric power delivered on the first output, preferably ten times less than the average electric power delivered on the first output.
    - The first power converter is galvanically isolated.
    - The second power converter has a nominal power lower than the nominal power of the first power converter.
    According to another aspect, the invention relates to a wall outlet comprising a housing intended to be fixed to a wall, a power connector and an electrical power supply device adapted to power the connector from an alternating voltage supplied by a electrical network, the electrical supply device being as described above.
    According to advantageous but not compulsory aspects of the invention, such a socket can incorporate a USB type power connector.
    The invention will be better understood and other advantages thereof will appear more clearly in the light of the description which follows, of an embodiment of an electrical supply device given solely by way of example and made with reference to the accompanying drawings in which:
    - Figure 1 is a schematic representation of a USB wall outlet according to the invention;
    - Figure 2 is a schematic representation of an electrical supply device of the wall outlet of Figure 1;
    - Figure 3 is a schematic representation of the evolution, over time, of electric voltage values within the power supply device of Figure 2 during its operation.
    Figure 1 shows a wall outlet 2 comprising a housing 4 and a connector 6 for power supply.
    The socket 2 is intended to be fixed to a wall 8, such as a wall of a building. For example, the housing 4 is intended to be at least partially received inside a wall cavity formed in the wall 8.
    As a variant, the housing 4 can be mounted projecting from the wall 8.
    The box 4 advantageously comprises fixing means, such as screws, to ensure its fixing to the wall 8.
    By “attachment to the wall 8”, it is understood here that the socket 2 is intended to be permanently and permanently secured to the wall 8. In other words, it is not intended to be removed by a user, except possibly during maintenance operations. Thus, socket 2 cannot be compared to a removable adapter plugged in to a mains socket in a building.
    The case 4 is here made of plastic. It is advantageously formed by assembling one or more separable shells.
    The connector 6 is adapted to allow the electrical connection of an electrical device with a view to electrically supplying this device, for example to ensure its operation or to recharge the battery fitted to this device.
    More precisely, the socket 2 is suitable for supplying a continuous electrical supply voltage to an external device via the connector 6.
    In this example, connector 6 is a USB type connector ("Universal Serial Bus" in English).
    As an illustrative example, the connector 6 is here a USB type C connector making it possible to provide more electrical power. The type C connector also has the advantage of having a reversible connection direction. As a variant, however, other types of USB connector can be used, in particular the more conventional USB type A connector.
    The socket 2 comprises a power supply device 10, including an example set illustrated in more detail in FIG. 2.
    The device 10 is configured to be supplied by an alternating electrical voltage and to supply, at the output, on the connector 6, a stabilized continuous electrical voltage.
    The alternating electrical voltage supplying the device 10 comes for example from an electrical supply network, of the mains type, to which the socket 2 is connected. For example, the socket 2 is connected to this supply network via connection terminals opening into the wall cavity.
    In this example, the electrical network delivers an alternating voltage of 230V type at 50Hz. As a variant, other values are possible, such as an AC voltage of the type 110V at 60Hz.
    For example, the device 10 is housed inside the box 4. In this example, the components of the device 10 are mounted on an electronic card which is received inside the box 4.
    Advantageously, the socket 2 comprises a control unit, not illustrated, for controlling the operation of the device 10.
    In particular, the control unit is programmed to fix the value of the DC output voltage supplied on the connector 6, for example as a function of a control signal received from the device to be supplied. For example, when a device is connected to socket 2, via connector 6, it sends an appropriate signal to the control unit, asking to be supplied with a voltage and amperage which correspond to properties of this device. In response, the control unit chooses a suitable output voltage.
    In this example, the USB connectors are compatible with the "USB power delivery" standard. They therefore allow a device to choose between several levels of power supply, for example 5 V with 1.5 amps, or 9 V with 3 amps, or 15 V with 3 amps or 20 V with 5 amps.
    In FIG. 2, the reference "12" represents an alternating voltage source. In this example, this is the electrical network that powers the device 10.
    The reference “14” represents an electric charge intended to be supplied by a direct electric voltage. In this example, the load 14 represents an electrical device connected to the socket 2, via the connector 6, for its supply and / or recharging.
    The device 10 here comprises an input 20 comprising two electrical terminals connected to the source 12.
    The device 10 also includes a rectifier 22 and a first power converter 24 of the DC-DC type, also denoted DC-DC.
    The rectifier 22 is connected to the terminals of the input 20 so as to be supplied by the source 12. The output of the rectifier 22 is connected to an input 26 of the first converter 24.
    In this example, the rectifier 22 is a diode bridge comprising four diodes D1, D2, D3 and D4.
    The device 10 comprises a first filtering capacitor Cin connected to the input 26, between the terminals of the input 26.
    The first converter 24 also has a first output 28 and a second output 30, which are distinct from each other. During its operation, the first converter 24 delivers an electrical power output at each of the outputs 28 and 30.
    The average electric power delivered on the second outlet 30 is less than the average electric power delivered on the first outlet 28. Preferably, the average electric power delivered on the second outlet 30 is two times lower, and preferably ten times lower than the average electrical power delivered on the first output 28.
    Advantageously, the first converter 24 is galvanically isolated. For example, the level of electrical insulation corresponds to the level of insulation "OVC III" as defined by standard IEC-60664-1 of the International Electrotechnical Commission. Thus, the device 10 has electrical insulation which avoids posing risks to the users.
    In this example, the first converter 24 is a “flyback” type converter.
    More specifically, the first converter 24 here comprises a transformer comprising a primary winding 40, a first secondary winding 42 and a second secondary winding 44 which are wound around a common ferromagnetic core 46 of the transformer. In known manner, these windings, or solenoids, are formed by winding conductive wires around the core 46.
    The primary winding 40 is connected in series with a regulation circuit 48 between the terminals of the input 26. The regulation circuit 48 here comprises a controllable switch. The switch is operated with a predefined switching frequency, for example by being controlled by the control unit of socket 2.
    By way of illustration, the switching frequency of circuit 48 is here equal to 140 kHz.
    The regulation circuit 48 is here controlled as a function of a regulation voltage, measured by means of an auxiliary winding, not illustrated, formed around the core 46, at the primary of the transformer.
    The first coil 42 is connected to the first input 28. Advantageously, a diode D5 is connected in series with the first coil 42 so as to prevent a transfer of electrical power from the first output 28 to the input 26.
    Similarly, the second coil 24 is connected to the second output 30. Advantageously, a diode D6 is connected in series with the second coil 44 in order to avoid any transfer of electrical power from the second output 30 to the input 26.
    The device 10 further comprising a second filtering capacitor Cmain connected to the first output 28 and a third filtering capacitor Cfilter connected to the second output 30.
    More specifically, the capacitors Cmain and Cfilter are connected in parallel with the corresponding output 28, 30, respectively.
    We write "Vmain" the electric voltage across the second capacitor CMain and we write "Vfilter >> the electric voltage across the third capacitor Cfilter.
    The device 10 further comprises a second power converter 50 continuous - continuous, the input of which is connected to the second output 30.
    Advantageously, the nominal power of the converter 50 is less than the nominal power of the first converter 24. For example, the nominal power of the second converter 50 is equal to 10% of the nominal power of the first converter 24.
    In this example, the second converter 50 is a “buck” type converter. In known manner, this converter 50 here comprises controllable power switches 52 and 54 associated with an inductor 56.
    As a variant, the second converter 50 may be of a different nature. For example, it’s a buck-boost converter.
    We note “58 >> the output of the second power converter 50.
    The device 10 further comprises a fourth filtering capacitor Csmall which is connected to the output 58, in parallel with the latter. We note “Vsmall” the electric voltage across this fourth capacitor Csmall.
    The first output 28 of the first converter 24 and the output 58 of the second converter 50 are connected with each other in series to form an output 60 of the device 10.
    By way of illustrative example, the electric power supplied at the output of the device 10 is here less than 100W.
    In this example, a first terminal of the output 60 is connected to a first terminal of the first output 28. A second terminal of the output 60 is connected to a first terminal of the output 58 of the second converter 50. The second terminal of the first output 28 and the second terminal of output 58 of the second converter 50 are connected to each other by an electrical conductor.
    The device 10 also comprises a fifth cost filtering capacitor connected to the output 60 in parallel with it. We note “Vout” the electrical voltage across this fifth Cost capacitor. The voltage Vout here corresponds to the DC voltage which is delivered at the output of the device 10 to a corresponding electrical appliance, illustrated here by the electrical load 14, connected to the socket by the connector 6.
    Alternatively, however, either of the fifth Cost capacitor or the fourth Csmall capacitor can be omitted.
    In other words, at least a fourth filter capacitor Csmall or Cost is connected either to the output 58 of the second converter or to the output 60 of the power supply device 10.
    When the fifth Cost capacitor is omitted, the voltage Vout corresponds to the electric voltage between the output terminals 60. Similarly, when the fourth capacitor Csmall is omitted, the voltage Vsmall corresponds to the electric voltage between the terminals of the output 58 .
    Due to the series connection of outputs 28 and 58, the voltage Vout is equal to the sum of the voltages Vmain and Vsmall.
    Preferably, each of the Cin, Cmain, Cfilter, Csmall, Cost capacitors has a capacitance which is less than 1mF and, preferably, less than or equal to 100pF. In particular, the first capacitor Cin has a capacity less than or equal to 100pF, here equal to 10pF.
    The Cin, Cmain, Cfilter, Csmall, Cost capacitors are here made of ceramic. Alternatively, they may be of tantalum or polymer type technology or any other equivalent technology. Thus, these Cin, Cmain, Cfilter, Csmall, Cost capacitors are not aluminum electrolytic technology capacitors.
    In this description, to simplify, each of the Cin, Cmain, Cfilter, Csmall, Cost capacitors is illustrated as a unitary component although in practice, each Cin, Cmain, Cfilter, Csmall, Cost capacitor can actually be formed by a battery. two or more capacitors connected together in parallel, for example within the same unit module.
    The regulation of the second converter 50 is carried out here by measuring the voltage Vsmall downstream of the fourth capacitor Csmall. The switching frequency of the converter 50 is here equal to 1 MHz.
    The second converter 50 is adapted, in particular through its regulation strategy, so that the output voltage Vsmall is, at all times, complementary to the input voltage Vfilter. For example, when the input voltage Vfilter has a maximum amplitude, then the output voltage Vsmall has a minimum amplitude. When the input voltage Vfilter decreases, the output voltage Vsmall increases accordingly. Similarly, when the input voltage Vfilter increases, then the output voltage Vsmall decreases accordingly, so that the voltage Vout remains constant and has as little variation and undulation as possible.
    FIG. 3 schematically represents an example of operation of the device 10 over time.
    Curve 70 represents the evolution of the amplitude of the voltage Vmain as a function of time T. Curve 72 represents the evolution of the amplitude of the voltage Vfilter as a function of time T. Curve 74 represents the evolution of l amplitude of the voltage Vsmall as a function of time T. Finally, the curve 76 represents the evolution of the amplitude of the output voltage Vout of the device 10 as a function of time t.
    In this illustrative example, corresponding to the case of an electric power supply network delivering an alternating voltage of frequency 50Hz, the amplitudes are expressed in Volt and the time t is expressed in milliseconds, with a step of 5 milliseconds for each graduation of l 'horizontal axis.
    During the operation of the device 10, the voltages Vmain and Vfilter delivered at the output of the first capacitor 24 have amplitude which decreases periodically due to voltage drops at the output of the first converter 24, which occur when the latter cannot maintain its power delivered at the failure to receive sufficient electrical power at the input, for example each time the alternating voltage received on the input 20 passes through a value of zero amplitude. In the example illustrated, these decreases occur for the instants noted t1, t2 and t3, here every 10 ms for a 50Hz input network. One of these decreases is illustrated on curve 70 by the reference 80.
    The second converter 50 is therefore configured to, by virtue of its regulation, supply at the output a voltage which compensates for the voltage drops appearing at the output of the first converter. Thus, the voltage Vsmall presents increases in value for the instants t1, t2 and t3. One of these increases is illustrated here by the reference 82.
    Because the voltages Vmain and Vsmall add up to give the output voltage Vout, as explained above, then the increase 82 compensates for the voltage drop 80, which allows the output voltage to present an essentially constant value and equal to a set value.
    We thus obtain a simple and effective regulation of the output voltage Vout.
    This regulation is carried out without the need to use, at the input of the first converter 24, a filtering using capacitors of large capacity. This makes it possible to use ceramic technology capacitors, which are more reliable and occupy less space than the commonly used aluminum-based electrolytic capacitors. This allows the device 10, and therefore the socket 2, to be more compact.
    The energy efficiency of the device 10 is also satisfactory, for example greater than or equal to 90%, despite the fact that two power converters are connected in series with each other.
    In fact, here, as the second converter 50 is connected to the second output 30 which delivers only a small fraction of the total electrical power delivered at the output of the first capacitor 24, the losses in yield are limited compared to the case where the first converter 24 would have only one output to which the second converter would be connected. In such a case, the losses specific to each converter would add up completely, so that the energy efficiency of the device 10 would be much lower.
    In addition, with this arrangement, the second converter 50 can be smaller than the first converter 24. One consequence is that this reduces the size of the second converter 50.
    Thus, the device 10 has a reduced bulk which facilitates the integration of the socket 2. By avoiding the use of fragile components and having a short lifespan, the reliability of the device 10 and of the socket 2, as well as their duration of average life, are improved compared to known catches. The heat losses are limited thanks to the good energy efficiency of the device 10, which makes the problem of dissipating the dissipated heat less critical when the socket 2 is embedded in a wall 8.
    The embodiments and variants envisaged above can be combined with one another to generate new embodiments.
    权利要求:
    Claims (12)
    [1" id="c-fr-0001]
    1.-Power supply device (10) for a wall outlet provided with an electrical connector, characterized in that this power supply device comprises:
    - a rectifier (22), intended to be supplied by a source of alternating electric voltage (12);
    - a first continuous-continuous power converter (24), comprising:
    • an input (26) connected to the output of the rectifier;
    • a first output (28) and a second output (30), the average electric power delivered on the second output (30) being less than the average electric power delivered on the first output (28);
    - a second continuous-continuous power converter (50), the input of the second power converter being connected to the second output (30) of the first power converter;
    - a first filter capacitor (Cin) connected to the input of the first power converter, a second filter capacitor (Cmain) connected to the first output (28), a third filter capacitor (Cfilter) connected to the second output (30) ;
    and characterized in that the first output (28) of the first power converter and the output (58) of the second power converter are connected in series to form an output (60) of the power supply device (10) capable of delivering a continuous supply voltage, the electrical supply device (10) comprising at least a fourth filter capacitor (Csmall, Cost) connected either to the output (58) of the second converter or to the output (60) of the device d 'power supply (10).
    [2" id="c-fr-0002]
    2, - power supply device (10) according to claim 1, characterized in that the fourth filter capacitor (Csmall) is connected to the output (58) of the second power converter (50) and in that the device power supply (10) includes a fifth filter capacitor (Cost) connected to its output (60).
    [3" id="c-fr-0003]
    3. - Power supply device (10) according to any one of the preceding claims, characterized in that the first power converter (24) is a "flyback" type converter.
    [4" id="c-fr-0004]
    4. - Power supply device (10) according to any one of the preceding claims, characterized in that the second power converter (50) is a converter of the "buck" type or of the "buck-boost" type. .
    [5" id="c-fr-0005]
    5. - electrical supply device (10) according to any one of the preceding claims, characterized in that the second power converter (50) is configured so that the voltage delivered at the output of this second power converter (50) is complementary to the voltage it receives on its input.
    [6" id="c-fr-0006]
    6. - Power supply device (10) according to any one of the preceding claims, characterized in that the capacitors (Cin, Cmain, Cfilter, Csmall, Cost) are capacitors of ceramic technology or tantalum technology or technology polymer.
    [7" id="c-fr-0007]
    7. - Power supply device (10) according to any one of the preceding claims, characterized in that the first capacitor (Cin) has a capacity of less than 1 millifarad.
    [8" id="c-fr-0008]
    8. - An electrical supply device (10) according to any one of the preceding claims, characterized in that the average electric power delivered on the second output (30) is at least twice less than the average electric power delivered on the first output (28), preferably ten times less than the average electrical power delivered on the first output (28).
    [9" id="c-fr-0009]
    9. - Power supply device (10) according to any one of the preceding claims, characterized in that the first power converter (24) is galvanically isolated.
    [10" id="c-fr-0010]
    10. - Power supply device (10) according to any one of the preceding claims, characterized in that the second power converter (50) has a nominal power lower than the nominal power of the first power converter (24).
    [11" id="c-fr-0011]
    11.- Wall outlet (2) including:
    - a housing (4) intended to be fixed to a wall (8);
    - a power connector (6);
    - an electrical supply device (10) adapted to supply the connector (2) from an alternating voltage supplied by an electrical network;
    5 characterized in that the electrical supply device (10) is according to any one of the preceding claims.
    [12" id="c-fr-0012]
    12, - Wall outlet according to claim 11, characterized in that the power connector (6) is of the USB type.
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    同族专利:
    公开号 | 公开日
    FR3071979B1|2021-09-24|
    KR20190039010A|2019-04-10|
    US20190103815A1|2019-04-04|
    CN109599924A|2019-04-09|
    EP3462584A1|2019-04-03|
    JP2019068732A|2019-04-25|
    US10917016B2|2021-02-09|
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    CN110995024B|2019-11-15|2021-04-20|中国石油化工集团有限公司|Direct current arc plasma power supply and system|
    KR20220006190A|2020-07-08|2022-01-17|삼성전자주식회사|Electronic apparatus and power supply|
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    CN112234848A|2020-09-30|2021-01-15|Oppo广东移动通信有限公司|Power supply device, charging method and system, and computer-readable storage medium|
    CN112234850A|2020-09-30|2021-01-15|Oppo广东移动通信有限公司|Power supply device, circuit control method and power supply system|
    CN112448601A|2020-11-12|2021-03-05|Oppo广东移动通信有限公司|Power supply device, circuit control method and power supply system|
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    法律状态:
    2019-04-05| PLSC| Publication of the preliminary search report|Effective date: 20190405 |
    2019-10-22| PLFP| Fee payment|Year of fee payment: 3 |
    2020-10-27| PLFP| Fee payment|Year of fee payment: 4 |
    2021-10-27| PLFP| Fee payment|Year of fee payment: 5 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1759190A|FR3071979B1|2017-10-02|2017-10-02|ELECTRICAL POWER SUPPLY DEVICE FOR A WALL SOCKET WITH A CONNECTOR AND A WALL SOCKET WITH A CONNECTOR AND INCLUDING SUCH A POWER SUPPLY DEVICE|
    FR1759190|2017-10-02|FR1759190A| FR3071979B1|2017-10-02|2017-10-02|ELECTRICAL POWER SUPPLY DEVICE FOR A WALL SOCKET WITH A CONNECTOR AND A WALL SOCKET WITH A CONNECTOR AND INCLUDING SUCH A POWER SUPPLY DEVICE|
    CN201811147544.5A| CN109599924A|2017-10-02|2018-09-29|Electrical power equipment and wall plug including it|
    KR1020180117202A| KR20190039010A|2017-10-02|2018-10-01|Electrical-power-supplying device for a wall plug provided with a connector and wall plug provided with a connector and comprising such an electrical-power-supplying device|
    EP18197894.1A| EP3462584A1|2017-10-02|2018-10-01|Power supply device for awall plug comprising an electrical connector and wall plug comprising this power supply device|
    US16/147,926| US10917016B2|2017-10-02|2018-10-01|Electrical-power-supplying device for a wall plug provided with a connector and wall plug provided with a connector and comprising such an electrical-power-supplying device|
    JP2018186751A| JP2019068732A|2017-10-02|2018-10-01|Electrical-power-supplying device for wall plug provided with connector and wall plug provided with connector and comprising such an electrical-power-supplying device|
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