Plug, socket and device for detecting discharge state

Abstract

The utility model relates to the technical field of charging and discharging of new energy automobiles, in particular to a plug, a socket and a device for detecting a discharging state, and the plug comprises a plug body, an induction signal receiving part, a processor and a switch; the plug body is provided with an induction signal receiving part; the switch is arranged on the charging wire; and the processor is connected with the induction signal receiving part and the switch, and is used for controlling the on-off of the switch according to the signal received by the induction signal receiving part. By means of the plug, the socket and the device, the problem that wires and the vehicle are burnt out due to short circuit caused by the fact that the vehicle is in the discharging state and the charging wire plug is inserted into the alternating current end can be effectively avoided, and potential safety hazards caused by the fact that the discharging extension socket is taken down when the vehicle is in the discharging state can be effectively eradicated.

Description

Technical Field

[0001] This utility model relates to the field of equipment charging and discharging technology, and in particular to a plug, socket and device for detecting discharge status. Background Technology

[0002] Most new energy vehicles now support vehicle-to-everything (V2L) charging, and owners typically keep a charging cable, charging adapter, or charging power strip in their vehicles for emergencies. A few manufacturers have considered combining the charging and discharging cables into a single integrated charging / discharging cable. This allows for charging the vehicle or discharging other devices from the vehicle. While this solution offers convenience, it introduces a new problem: when the integrated charging / discharging cable is plugged into the vehicle, the user needs to determine whether the vehicle is charging or discharging. If this is misjudged, and the cable is unplugged from the charging power strip while the vehicle is discharging, the live cable plug could cause an electric shock. Furthermore, plugging the integrated charging / discharging cable into AC power while the vehicle is discharging could lead to a short circuit and an accident. Therefore, it is necessary to check whether the integrated charging / discharging cable is plugged into the AC charging power strip.

[0003] Some companies on the market have implemented detection methods to ensure that the charging / discharging cable is inserted into the discharge socket. These companies currently use a physical detection method, which involves installing a physical device (such as a pin) on the discharge socket. When the plug is inserted, the detection device on the plug abuts against this physical device, forming a current loop and thus detecting that the charging / discharging cable is inserted. However, this solution requires the additional installation of a physical device and additional waterproofing treatment, increasing production steps and installation costs. Utility Model Content

[0004] The purpose of this utility model is to overcome the problem in the prior art that the charging and discharging cable does not detect whether the plug is inserted into the power strip, which leads to safety hazards during the discharge state. This invention provides a plug, socket and device for detecting the discharge state through wireless or contactless detection.

[0005] A plug for detecting discharge status includes: a plug body, a sensing signal receiving component, a processor, and a switch;

[0006] The plug body is equipped with a sensor signal receiving component;

[0007] The switch is located on the charging cable;

[0008] The processor is connected to the sensing signal receiving component and the switch, and is used to control the on / off state of the switch according to the signal received by the sensing signal receiving component.

[0009] Furthermore, a sensing signal receiving component is provided on the plug body near the plug.

[0010] Furthermore, the switch is installed on the live wire and the neutral wire of the charging cable to control the conduction and disconnection of the live wire and the neutral wire.

[0011] Furthermore, the sensing signal receiving component includes a wireless signal receiver, which includes an NFC tag reader and an RFID tag reader.

[0012] Furthermore, the sensing signal receiving component includes a magnetic sensor.

[0013] Based on the same concept, a charging / discharging cable is also proposed, comprising a plug for detecting discharge status as described in any of the above and a wire electrically connected to the plug.

[0014] Based on the same concept, a socket for detecting discharge status is also proposed, comprising a socket body and a sensing component; the sensing component is disposed on the socket; the signal emitted by the sensing component can be received by a plug for detecting the discharge status of an integrated wire as described above.

[0015] Furthermore, the wireless sensing component is located in the area near the socket, and the positions of the wireless sensing component and the wireless sensing signal receiving component correspond to each other.

[0016] Furthermore, the sensing component includes a magnetic material component.

[0017] Furthermore, the sensing component includes a wireless signal sensing component, which includes NFC tags and RFID tags.

[0018] Based on the same concept, a charging and discharging integrated cable discharge plug detection device was also proposed, including: plug body, socket, sensing component, sensing signal receiving component, processor and switch;

[0019] The plug body is equipped with a sensor signal receiving component;

[0020] The socket is equipped with a sensing component;

[0021] The switch is located on the charging cable;

[0022] The processor is connected to the sensing signal receiving component and the switch, and is used to control the opening and closing of the switch according to the signal emitted by the sensing component received by the sensing signal receiving component.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] The plug, socket, and device of this invention can effectively prevent short circuits that could burn out wires and damage the vehicle when the charging plug is plugged into the AC terminal while the vehicle is in a discharging state. It can also effectively eliminate safety hazards caused by removing the power strip when the vehicle is in a discharging state. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a plug for detecting discharge status in Example 1;

[0026] Figure 2 The plug for the sensor signal receiving component in Embodiment 1;

[0027] Figure 3 The plug with a magnetic sensor for detecting discharge status in Example 2;

[0028] Figure 4 This is a schematic diagram of a socket for detecting discharge status in Example 3;

[0029] Figure 5 This is a schematic diagram of the use of a wireless signal sensing component to determine the status of the plug and socket in Example 3;

[0030] Figure 6 This is a schematic diagram of using a magnetic sensor to determine the status of the plug and socket in Example 4;

[0031] Figure 7 This is a schematic diagram of the discharge connector detection device in Example 5;

[0032] Figure 8 This is a schematic diagram of a charge / discharge line in Example 6; Detailed Implementation

[0033] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0034] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0036] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0037] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0038] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0039] Example 1

[0040] A plug for detecting discharge status, the structural schematic diagram is shown below. Figure 1 As shown, it includes: a plug body, a sensing signal receiving component, a processor, and a switch; the sensing signal receiving component is disposed on the plug body; the switch is disposed on the charging cable; the processor is connected to the sensing signal receiving component and the switch, and is used to control the on / off state of the switch according to the signal received by the sensing signal receiving component.

[0041] Furthermore, a sensing signal receiving component is provided on the side of the plug body near the plug. Specifically, the plug with the sensing signal receiving component is as follows: Figure 2 As shown, the induction signal receiving component is located near the three-prong plug, and can be located inside the plug housing or outside the housing.

[0042] Furthermore, such as Figure 1 As shown, switches are installed on the live and neutral wires of the charging cable to control the conduction and disconnection of the live and neutral wires. There are two switches: one connected in series on the live wire to control the current flow, and the other connected in series on the neutral wire to control the current flow. The switches are generally relays. When a disconnect signal is received, both switches open simultaneously, disconnecting the live and neutral wires. When an open signal is received, both switches close simultaneously, connecting the live and neutral wires.

[0043] Furthermore, the sensing signal receiving component includes a wireless signal receiver, which determines whether the plug is inserted into the socket and fits snugly against the socket by receiving wireless signals. This eliminates the need for other components (such as pins), saving costs during mold making and making installation more convenient. The wireless signal receiver can include an NFC tag reader, an RFID tag reader, etc. As long as a matching NFC tag or RFID tag is detected, it can determine whether the plug is inserted into the socket and fits snugly against the socket. Preferably, the RFID tag reader can be the FM17660.

[0044] It should be further noted that although the processor needs a control program to control the switching on and off of the switch based on the signal received by the sensing signal receiving component, the output of the sensing signal receiving component to the processor is a level signal. The processor outputs a high level or a low level based on the level signal received by the sensing signal receiving component to control the conduction and disconnection of the relay. This is a conventional technical means in the field, and the control program is existing technology and is a simple program.

[0045] Example 2

[0046] Based on Embodiment 1, another embodiment involves configuring the induction signal receiving component as a magnetic sensor, and a plug with a magnetic sensor for detecting the discharge state, such as... Figure 3 As shown. When the magnetic sensor detects the presence of magnetic material, for a socket containing magnetic material, the plug is inserted into the socket and comes into contact with it. After detecting the magnetic material, the magnetic sensor outputs a level signal (high-level signal or low-level signal), and the processor can determine whether the plug is inserted into the socket and comes into contact with it based on the level signal. As a specific embodiment, the magnetic sensor can be a magnetic sensor, such as a magnetic sensor with model number SL1613SH or SL1623SH. The magnetic sensor with model number SL1613SH detects the S pole of the magnetic material, and the magnetic sensor with model number SL1623SH detects the N pole of the magnetic material. The magnetic material usually refers to a magnet.

[0047] Example 3

[0048] Matching the plug for discharge state detection in Embodiment 1, a socket for discharge state detection is also proposed, as shown in the schematic diagram. Figure 4 As shown, the device includes a socket body and a sensing component; the sensing component is installed on the socket. The position of the sensing component corresponds to that of the sensing signal receiving component in Embodiment 1. For example, the sensing component is next to the socket, and the sensing signal receiving component is next to the three-prong plug. When the plug is inserted into the socket, the plug and the socket are in contact, and the positions of the sensing component and the sensing signal receiving component correspond exactly. The sensing signal receiving component can then sense the sensing component and output a signal to the processor.

[0049] As a preferred embodiment, the sensing component includes a wireless signal sensing component, such as an NFC tag or an RFID tag. Matching the wireless signal receiver in Embodiment 1, when the wireless signal receiver (card reader) detects the presence of an RFID tag, it indicates that the plug is inserted into the socket and is in contact with it. A schematic diagram illustrating the use of a wireless signal sensing component to determine the plug and socket status is shown below. Figure 5 As shown.

[0050] Example 4

[0051] The difference from Embodiment 3 is that in a socket for detecting discharge status, the sensing component includes a magnetic material component (e.g., a magnet). Matching the magnetic sensor in Embodiment 2, when the magnetic sensor detects the presence of a magnet, it indicates that the plug is inserted into the socket and is in contact with it. A schematic diagram illustrating the use of a magnetic sensor to determine the state of the plug and socket is shown below. Figure 6 As shown.

[0052] Example 5

[0053] As a whole, the charging and discharging integrated cable discharge plug detection device includes: a plug body, a socket, a sensing component, a sensing signal receiving component, a processor, and a switch; the sensing signal receiving component is provided on the plug body; the sensing component is provided on the socket; the switch is provided on the charging cable; the processor is connected to the sensing signal receiving component and the switch, and is used to control the on / off state of the switch according to the signal emitted by the sensing component received by the sensing signal receiving component.

[0054] The overall concept is as follows: An RFID tag (not limited to NFC, RFID, etc.) or a contactless detection module (not limited to magnetic field detection, etc.) is added to the discharge connector, and the RFID tag or contactless device is placed on the AC plug of the integrated charge / discharge cable. When the AC plug of the integrated charge / discharge cable is inserted into the discharge connector, the detection device checks whether the discharge connector is inserted, thereby determining whether the relay inside the plug body is activated, allowing the vehicle-side AC power to be discharged to the discharge connector. Similarly, when the vehicle-side is discharging, the detection device considers the discharge connector removed when the magnetic field is detected to have disappeared. At this time, the relay inside the plug body is actively disconnected, disconnecting the vehicle-side AC power and de-energizing the AC plug of the integrated charge / discharge cable, thus protecting user safety. A schematic diagram of the discharge connector detection device for the integrated charge / discharge cable is shown below. Figure 7 As shown.

[0055] Example 6

[0056] A charging / discharging cable includes a plug for detecting discharge status as described in any one of embodiments 1 and 2, and a wire electrically connected to the plug. A schematic diagram of a charging / discharging cable is shown below. Figure 8 As shown, one end of the charging / discharging cable is an AC charging gun that plugs into the vehicle, and the other end is a plug for detecting the discharge status. This plug works in conjunction with a discharge power strip. When the charging / discharging cable is in charging mode, the plug is inserted into a wall socket connected to AC power, and the AC charging gun is inserted into the vehicle to charge it. When in discharging mode, the AC charging gun is inserted into the vehicle, and the plug is inserted into the discharge power strip. When the vehicle is in V2L discharge mode, the plug detects the discharge power strip insertion and activates a relay in the control box to direct the AC power discharged from the vehicle to the discharge power strip for user use.

[0057] An RFID tag or contactless device is installed inside the discharge connector. When the plug is inserted into the discharge connector, the RFID detection terminal or contactless sensor in the control box will detect the signal, thus determining that the plug has been inserted into the discharge connector and that the charging and discharging cable is ready to discharge. Once the plug detects that it has been inserted into the discharge connector, it will activate the relay in the control box, allowing the AC power discharged from the vehicle end to flow to the discharge connector.

[0058] The RFID tag or contactless detection tag on the discharge connector is under detection throughout the entire process, while the connector itself is in the active detection phase.

[0059] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plug for detecting discharge status, characterized in that, include: The plug body, the induction signal receiving component, the processor, and the switch; The plug body is equipped with a sensor signal receiving component; The switch is located on the charging cable; The processor is connected to the sensing signal receiving component and the switch, and is used to control the on / off state of the switch according to the signal received by the sensing signal receiving component.

2. A plug for detecting discharge state according to claim 1, characterized in that, A sensor signal receiving component is installed on the plug body near the plug.

3. The plug for detecting a discharge state according to claim 1, wherein The switch is installed on the live wire and neutral wire of the charging cable to control the conduction and disconnection of the live wire and neutral wire.

4. The plug for detecting a discharge state according to claim 1, wherein The sensing signal receiving component includes a wireless signal receiver, which includes an NFC tag reader and an RFID tag reader.

5. A plug for detecting discharge state according to claim 1, characterized in that, The sensing signal receiving component includes a magnetic sensor.

6. A charge-discharge cord characterized by comprising: It includes a plug for detecting discharge status as described in any one of claims 1-5 and a wire electrically connected to the plug.

7. A socket for discharge condition detection, characterized by, It includes a socket body and a sensing component; the sensing component is provided on the socket; the signal emitted by the sensing component can be received by a plug for detecting the discharge state of an integrated line as described in any one of claims 1-5.

8. The socket for detecting a discharge state according to claim 7, wherein The wireless sensing component is located near the socket, and the wireless sensing component and the wireless sensing signal receiving component are positioned correspondingly.

9. The socket for detecting a discharge state according to claim 7, wherein The sensing component includes a magnetic material component.

10. The socket for detecting a discharge state according to claim 7, wherein The sensing component includes a wireless signal sensing component, which includes NFC tags and RFID tags.

11. A charging and discharging integrated line discharging power strip detection device, characterized in that, include: Plug body, socket, sensing component, sensing signal receiving component, processor and switch; The plug body is equipped with a sensor signal receiving component; The socket is equipped with a sensing component; The switch is located on the charging cable; The processor is connected to the sensing signal receiving component and the switch, and is used to control the opening and closing of the switch according to the signal emitted by the sensing component received by the sensing signal receiving component.

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