Charging connection device and charging control method

Abstract

The invention discloses a charging connection device and a charging control method, and the device comprises an input plug which is used for connecting a power supply socket; the output plug is used for being connected with a vehicle, and the input plug and the output plug are connected through a charging wire; the switching device is arranged on the charging line; and the charging management assembly is connected with the charging wire and the switching device, and is used for sending out first reminding information when the power supply socket is not grounded, and controlling the switching device to be switched on when receiving a charging confirmation instruction sent by a user, so as to transmit the electric energy from the power supply socket to the vehicle. According to the charging connection device and the charging control method provided by the invention, a user can be effectively prevented from getting an electric shock without knowing the situation.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle charging devices, and more particularly to a charging connection device and a charging control method. Background Art

[0002] At present, when conventional vehicle charging connection devices detect that the power socket is not grounded (bad grounding), they will only light up the ground fault status indicator and then continue charging. Users are likely to ignore the fault status indicator and are unaware that the power socket is not grounded, which poses a risk of electric shock during vehicle charging.

[0003] Therefore, improvements are needed to at least partially solve the above problems. Summary of the invention

[0004] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0005] In order to at least partially solve the above problem, according to a first aspect of the present invention, a charging connection device is provided, comprising:

[0006] Input plug, used to connect to the power socket;

[0007] An output plug, used to connect to a vehicle, wherein the input plug and the output plug are connected via a charging cable;

[0008] A switch device is arranged on the charging line; and

[0009] A charging management component is connected to the charging cable and the switching device, and is used to issue a first reminder message when the power socket is not grounded, and when receiving an indication from the user to confirm charging, control the switching device to conduct so as to transmit electrical energy from the power socket to the vehicle.

[0010] Exemplarily, the charging management component includes:

[0011] A grounding detection unit, connected to the charging cable, for detecting whether the power socket is grounded;

[0012] A reminder unit, configured to send the first reminder information;

[0013] an indication receiving unit, configured to receive the indication; and

[0014] A control unit is connected to the grounding detection unit, the reminder unit, the indication receiving unit and the switch device, and is used to control the reminder unit to issue a first reminder message when the grounding detection unit detects that the power socket is not grounded, and to control the switch device to be turned on when the indication receiving unit receives the indication issued by the user.

[0015] Exemplarily, the reminder unit includes one or more of an indicator light, a speaker, a buzzer and a display screen; or,

[0016] The first reminder information includes one or more of sound information, light information and image information.

[0017] Exemplarily, the indication receiving unit includes an indication receiving device and a signal conversion circuit;

[0018] The instruction receiving device is used to receive the user's operation instruction or voice instruction;

[0019] The signal conversion circuit is connected to the indication receiving device and the control unit, and is used for converting the output signal of the indication receiving device into a digital signal and providing it to the control unit.

[0020] Exemplarily, the indication receiving device is a mechanical switch, a touch switch or a microphone;

[0021] The signal conversion circuit is an analog-to-digital conversion circuit.

[0022] Exemplarily, the charging management component is used to first issue a second reminder message and then control the switching device to turn on after receiving an indication from the user to confirm charging.

[0023] Exemplarily, the charging line includes a live line, a neutral line and a ground line;

[0024] The switch device includes a live line relay arranged on the live line and / or a neutral line relay arranged on the neutral line.

[0025] Exemplarily, the charging connection device further includes a power supply unit, which is connected to the charging line and the charging management component and is used to draw power from the charging line and supply power to the charging management component.

[0026] Exemplarily, the charging connection device further includes a CP control guidance unit, which is connected to the charging management component and the output plug and is used to exchange charging information with the vehicle.

[0027] According to a second aspect of the present invention, a charging control method is provided, the charging control method comprising:

[0028] When the power socket is not grounded, a first reminder message is issued;

[0029] When receiving a charging confirmation instruction from the user, the switch device is controlled to be turned on to transmit the electric energy from the power supply socket to the vehicle.

[0030] Exemplarily, the charging control method further includes:

[0031] When the power supply socket is grounded, the switch device is controlled to be turned on to transmit the electric energy from the power supply socket to the vehicle.

[0032] Exemplarily, the charging control method further includes:

[0033] When the instruction is received, a second reminder message is issued.

[0034] Exemplarily, the receiving a charging confirmation instruction from a user includes:

[0035] The preset mechanical switch is triggered; or,

[0036] The preset touch switch is triggered; or,

[0037] The preset microphone receives the preset voice message.

[0038] According to the charging connection device and charging control method of the present invention, when the power socket is not grounded, a first reminder message is issued to remind the user that the power socket is not grounded. Only after receiving the instruction to confirm charging from the user, the electric energy from the power socket is transmitted to the vehicle. The charging process performed when the power socket is not grounded is actively confirmed by the user, which can effectively avoid the risk of electric shock to the user without knowing it. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The following drawings of the present application are hereby used as part of the present application for understanding the present application. The drawings show the embodiments of the present application and their descriptions, and are used to explain the device and principle of the present application. In the drawings,

[0040] Figure 1 This is a schematic diagram of the connection relationship between the charging connection device, the power supply socket and the vehicle according to an embodiment of the present application;

[0041] Figure 2 for Figure 1 A schematic structural block diagram of a charging connection device in FIG.

[0042] Figure 3 is a flow chart of a charging control method according to an embodiment of the present application.

[0043] Description of reference numerals:

[0044] 100-charging connection device, 110-input plug, 120-output plug, 130-switch device, 131-live relay, 132-neutral relay, 140-charging management component, 141-grounding detection unit, 142-reminding unit, 143-indication receiving unit, 1431-indication receiving device, 1432-signal conversion circuit, 144-control unit, 1441-controller, 1442-relay drive circuit, 145-power supply unit, 146-CP control guidance unit;

[0045] 200-power socket;

[0046] 300-Vehicles. DETAILED DESCRIPTION

[0047] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it is apparent to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application, some technical features well known in the art are not described.

[0048] It should be understood that the present application can be implemented in different forms and should not be construed as being limited to the embodiments presented herein. On the contrary, providing these embodiments will make the disclosure thorough and complete and fully convey the scope of the present application to those skilled in the art. In the accompanying drawings, the sizes and relative sizes of layers and regions may be exaggerated for clarity. The same reference numerals throughout represent the same elements.

[0049] It should be understood that although the terms first, second, third, etc. can be used to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teachings of the present application, the first element, component, region, layer or part discussed below can be represented as a second element, component, region, layer or part.

[0050] Spatially relative terms such as "under", "beneath", "below", "under", "above", "above", etc., may be used herein for convenience of description to describe the relationship of one element or feature to other elements or features shown in the figures. It should be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation shown in the figures.

[0051] The purpose of the terms used herein is only to describe specific embodiments and is not intended to be limiting of the present application. When used herein, the singular forms "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "consisting of" and / or "comprising", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0052] Embodiments of the invention are described herein with reference to cross-sectional views as schematic diagrams of ideal embodiments (and intermediate structures) of the present application. Thus, variations in the shapes shown due to, for example, manufacturing techniques and / or tolerances can be expected. Therefore, embodiments of the present application should not be limited to the specific shapes shown herein, but include shape deviations due to, for example, manufacturing. Therefore, what is shown in the figures is schematic in nature, and their shapes are not intended to display the actual shape of the device and are not intended to limit the scope of the present application.

[0053] See attached Figure 1 , 2 The charging connection device 100 according to an embodiment of the present application is exemplarily described. The charging connection device 100 is connected between the power supply socket 200 and the vehicle 300 to transmit the power of the power supply socket 200 to the vehicle 300.

[0054] The charging connection device 100 includes an input plug 110, an output plug 120, a switch device 130 and a charging management component 140. The input plug 110 is used to connect to the power supply socket 200 (also called the power output socket), and the input plug 110 is provided with a live terminal, a neutral terminal and a ground terminal. The output plug 120 is used to connect to the charging head of the vehicle 300, and the output plug 120 is also provided with a live terminal, a neutral terminal and a ground terminal. The input plug 110 and the output plug 120 are connected through a charging line. In this embodiment, the charging line includes a live line (L), a neutral line (N) and a ground line (PE). The live terminal, the neutral terminal and the ground terminal on the input plug 110 are electrically connected to the live terminal, the neutral terminal and the ground terminal on the output plug 120 through the live wire, the neutral wire and the ground wire in the charging line, respectively.

[0055] The switch device 130 is arranged on the charging line between the input plug 110 and the output plug 120. When the switch device 130 is turned on, the electric energy from the power supply socket 200 can be transmitted to the vehicle 300 through the charging line to charge the vehicle 300; when the switch device 130 is turned off, the electric energy from the power supply socket 200 cannot be transmitted to the vehicle 300 through the charging line.

[0056] In this embodiment, the switch device 130 includes a live relay 131 and a neutral relay 132. The live relay 131 and the neutral relay 132 are respectively arranged on the live wire and the neutral wire. When the live relay 131 and the neutral relay 132 are turned on, the power supply socket 200 can transmit electric energy to the vehicle 300 through the charging line. When the live relay 131 and the neutral relay 132 are turned off, the power supply socket 200 cannot transmit electric energy to the vehicle 300 through the charging connection device 100. In some other embodiments, the switch device 130 may include only one of the live relay 131 and the neutral relay 132.

[0057] The charging management component 140 is connected to the charging line and the switch device 130, and is used to send a first reminder message when the power socket 200 is not grounded, and when receiving an instruction from the user to confirm charging, control the switch device 130 to conduct, so as to transmit the power from the power socket 200 to the vehicle 300. The first reminder message is used to remind the user that the power socket 200 is not grounded.

[0058] According to the charging connection device 100 of the present application, when the power socket 200 is not grounded, a first reminder message is first issued to remind the user that the power socket 200 is not grounded, and then, when an instruction to confirm charging is received from the user, that is, after the user's active confirmation is obtained, the power from the power socket 200 is transmitted to the vehicle 300. The charging process performed when the power socket 200 is not grounded is actively confirmed by the user, which can effectively avoid the risk of electric shock to the user without knowing it.

[0059] In this embodiment, the charging management component 140 includes a ground detection unit 141 , a reminder unit 142 , an instruction receiving unit 143 and a control unit 144 .

[0060] The grounding detection unit 141 is connected to the charging line and is used to detect whether the power socket 200 is grounded. Exemplarily, the grounding detection unit 141 may include, for example, a voltage detection circuit, which may be used to measure one or more of the voltage between the neutral line and the ground line, the voltage between the neutral line and the live line, and the voltage between the live line and the ground line, and then determine whether the power socket 200 is grounded according to the detected voltage value. Exemplarily, the grounding detection unit 141 may include the input PE detection system disclosed in patent CN216285645U or the PE detection device disclosed in patent CN203535153U or other grounding detection circuits known to those skilled in the art. The grounding detection unit 141 may also be other detection devices known to those skilled in the art that can detect whether the power socket 200 is grounded, which is not limited in this application.

[0061] The reminder unit 142 is used to send out a first reminder message, that is, when the grounding detection unit 141 detects that the power socket 200 is not grounded, the first reminder message is sent to remind the user. The reminder unit 142 may include one or more of an indicator light, a speaker, a buzzer and a display screen. The indicator light may include an LED light, which may be used to send out a light reminder message by being always on, flashing, etc. The indicator light may also cooperate with the light guide plate to display text reminder messages (for example, "Please change the socket", "The socket is poorly grounded, please change the socket", etc.); the speaker and the buzzer may be used to send out a sound reminder message such as a continuous or periodic sound, and the duration of the sound may be greater than 30 seconds; the display screen may be used to display specific text, such as "Please change the socket", "The socket is poorly grounded, please change the socket", etc., or display a specific reminder image. That is, the first reminder message may include one or more of sound information, light information and image information. The indicator light, the display screen, the speaker and the buzzer are used in combination to remind the user visually and auditorily at the same time.

[0062] The indication receiving unit 143 is used to receive an indication issued by the user to confirm charging, that is, when the grounding detection unit 141 detects that the power supply socket 200 is not grounded, it is necessary to receive an indication of confirming charging issued by the user through the indication receiving unit 143 before the switch device 130 can be turned on to charge the vehicle 300. In this embodiment, the indication receiving unit 143 includes an indication receiving device 1431 and a signal conversion circuit 1432, and the indication receiving device 1431 is used to receive an operation indication or voice indication from the user. Exemplarily, the indication receiving device 1431 is a mechanical switch (including a physical button, etc.), a touch switch (such as a capacitive touch switch, etc.) or a microphone, and the user can operate it to input an indication to confirm charging, such as triggering a mechanical switch or a physical switch, or issuing a specific voice indication (such as a voice of "confirm charging", etc.). The signal conversion circuit 1432 is connected to the indication receiving device 1431 and the control unit 144, and is used to convert the output signal of the indication receiving device 1431 (such as a voltage signal, a current signal, a capacitance signal, and an acoustic signal) into a digital signal (such as a specific voltage signal or current signal that can be recognized by a control device such as a single-chip microcomputer) and provide it to the control unit 144. Exemplarily, the signal conversion circuit 1432 can be a digital-to-analog conversion circuit. The indication receiving unit 143 can also be other electronic devices known to those skilled in the art that can obtain instructions issued by the user, and this application does not limit this.

[0063] The control unit 144 is connected to the grounding detection unit 141, the reminder unit 142, the indication receiving unit 143, the live relay 131 and the neutral relay 132, and is used to control the reminder unit 142 to send a first reminder message to remind the user that the power socket 200 is not grounded when the grounding detection unit 141 detects that the power socket 200 is not grounded; and after the indication receiving unit 143 receives the indication of confirming charging sent by the user, control the switch device 130 to conduct, transmit the electric energy from the power socket 200 to the vehicle 300, and charge the vehicle 300. The control unit 144 is also used to control the switch device 130 to conduct, transmit the electric energy from the power socket 200 to the vehicle 300 when the grounding detection unit 141 detects that the power socket 200 is grounded. In this embodiment, the control unit 144 includes a controller 1441 and a relay drive circuit 1442. The controller 1441 may be, for example, a single chip microcomputer. The controller 1441 is connected to the grounding detection unit 141, the reminder unit 142, and the indication receiving unit 143. The relay drive circuit 1442 is connected to the controller 1441, the live relay 131, and the neutral relay 132. The controller 1441 may control the conduction and disconnection of the live relay 131 and the neutral relay 132 through the relay drive circuit 1442. The control unit 144 may also be other control devices known to technicians that can interact with the grounding detection unit 141, the reminder unit 142, and the indication receiving unit 143 and control the corresponding actions of the switch device 130, and this application does not limit this.

[0064] Furthermore, in this embodiment, the charging management component 140 (that is, the control unit 144 in the charging management component 140) is also used to control the reminder unit 142 to send a second reminder message, and then control the switch device 130 to turn on after the indication receiving unit 143 receives the indication of confirming charging issued by the user, that is, when the power socket 200 is not grounded and the user confirms charging. The second reminder information may include one or more of sound information, light information, and image information to remind the user to beware of the risk of electric shock. Exemplarily, it can be configured as needed by displaying words such as "Please do not touch the car body". Thereby, the safety of charging can be further improved.

[0065] Further, in this embodiment, the charging connection device 100 also includes a power supply unit 145, which is connected to the charging line (that is, the live line and the neutral line in the charging line) and the charging management component 140 (for example, the control unit 144 in the charging management component), and is used to take power from the live line and the neutral line and power the charging management component 140. The power supply unit 145 may include a rectifier circuit, a step-down circuit, a filter circuit, etc., which is used to convert the high-voltage AC power from the live line and the neutral line into a low-voltage DC power and provide it to the control unit 144, for example, to the controller 1441, and power the controller 1441. The controller 1441 can further transmit the electric energy to the ground detection unit 141, the reminder unit 142, the indication receiving unit 143, etc., to power them. The power supply unit 145 can also be directly connected to the components in the function box 130 such as the ground detection unit 141, the reminder unit 142, the indication receiving unit 143, etc., to power them.

[0066] Further, in this embodiment, the charging connection device 100 also includes a CP control guidance unit 146, which is connected to the control unit 144 and the output plug 120, and is used to exchange charging information with the vehicle 300. The output plug 120 is provided with a CP connection terminal, and the CP control guidance unit 146 is connected to the CP connection terminal. The specific structure of the CP control guidance unit 146 can be configured by those skilled in the art according to the requirements of the specification GB / T 18487.1-2015, and this application will not be described in detail here. In some embodiments, a CP connection terminal may be provided in the input plug 110, and the controller is connected to the CP connection terminal.

[0067] In this embodiment, the switch device 130 and the charging management component 140 are disposed in a separate box, and the box is connected to the input plug 110 and the output plug 120 through a charging cable. In some other embodiments, a separate box may not be provided, but the switch device 130 and the charging management component 140 may be built into the input plug 110 or the output plug 120.

[0068] The charging connection device 100 according to the present application is suitable for areas where the Norwegian IT power grid and TN power grid coexist. When the TN system power supply end is not grounded to allow AC charging, there is a risk of leakage of the AC charging connection device 100 phase line to PE. The PE connection status of the IT system's power socket cannot be detected (that is, the grounding detection unit 141 will detect that the power socket is not grounded), but the safety is better and there is no risk of leakage. The charging connection device 100 cannot detect whether PE is grounded when drawing power from the power socket of the Norwegian IT power system. The user can learn the cause of the fault indication based on the product alarm information in the user manual or product manual, and determine whether the power socket is connected to the IT power system by consulting electricians, power bureaus and other means. If so, the indication receiving unit 143 can input an indication to confirm charging, and then charge normally. When the charging connection device 100 draws power from a power socket of a non-IT power system (such as a TN power grid), the charging connection device 100 detects that the power socket is not grounded, and the reminder unit 142 is used to send a first reminder message. The user can learn the cause of the fault indication by obtaining the product alarm information from the user manual or product manual, and can determine whether the power socket is connected to the IT power system by consulting an electrician, the power bureau, or other means. If not, the user can subjectively determine whether to continue charging based on the risk warning in the user manual or product manual. Avoid the risk of electric shock caused by charging through a TN system power socket without knowing it.

[0069] The charging connection device 100 according to the present application is applicable to the national standard / European standard / American standard at the same time, and can charge all electric vehicles whose charging systems comply with the regulatory design, and the user confirms that the charging process is carried out outside the vehicle, which is convenient for user operation.

[0070] See attached Figure 3 The present application also provides a charging control method, which can be applied to the above-mentioned charging connection device 100, where the charging connection device 100 is connected between the power supply socket 200 and the vehicle 300.

[0071] The charging control method includes the following steps:

[0072] S10: When the power socket 200 is not grounded, a first reminder message is issued.

[0073] Specifically, the grounding detection unit 141 in the charging connection device 100 detects whether the power socket 200 is grounded. When the detection result is no, that is, when the power socket 200 is not grounded, the control unit 144 in the charging connection device 100 controls the reminder unit 142 to send a first reminder message to remind the user that the power socket 200 is not grounded. The first reminder message includes one or more of sound information, light information and image information.

[0074] S20 : ​​upon receiving a charging confirmation instruction from the user, the switch device 130 is controlled to be turned on to transmit the electric energy from the power supply socket 200 to the vehicle 300 .

[0075] Specifically, it is possible to detect whether a preset mechanical switch (i.e., a mechanical switch in the charging connection device 100) is triggered; or, detect whether a preset touch switch (i.e., a touch switch in the charging connection device 100) is triggered; or, detect whether a preset (a preset microphone in the charging connection device 100) receives a preset voice message. When the detection result is yes, that is, when an indication of confirming charging is received from the user, the live wire relay 131 and the neutral wire relay 132 are controlled to be turned on to transmit the power from the power socket 200 to the vehicle 300.

[0076] According to the charging control method of the present application, when the power socket 200 is not grounded, a first reminder message is first issued to remind the user that the power socket 200 is not grounded, and then, when an instruction to confirm charging is received from the user, that is, after the user's active confirmation is obtained, the power from the power socket 200 is transmitted to the vehicle 300. The charging process performed when the power socket 200 is not grounded is actively confirmed by the user, which can effectively avoid the risk of electric shock to the user without knowing it.

[0077] Exemplarily, the charging control method further includes:

[0078] S30 : When the power socket 200 is grounded, the switch device 130 is controlled to be turned on to transmit the electric energy from the power socket 200 to the vehicle 300 .

[0079] Specifically, the grounding detection unit 141 in the charging connection device 100 detects whether the power socket 200 is grounded. When the detection result is yes, that is, when the power socket 200 is grounded, the live relay 131 and the neutral relay 132 are controlled to be turned on to transmit the power from the power socket 200 to the vehicle 300.

[0080] Exemplarily, the charging control method further includes:

[0081] S40: When receiving the instruction of confirming charging from the user, issuing a second reminder message.

[0082] Specifically, when receiving an indication from the user to confirm charging, a second reminder message is sent through the reminder unit 142 in the charging connection device 100 to remind the user to beware of the risk of electric shock. The second reminder message may include one or more of sound information, light information and image information.

[0083] Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above example embodiments are merely exemplary and are not intended to limit the scope of the present application to this. Those of ordinary skill in the art may make various changes and modifications therein without departing from the scope and spirit of the present application. All these changes and modifications are intended to be included within the scope of the present application as required by the appended claims.

[0084] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0085] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed.

[0086] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0087] Similarly, it should be understood that in order to streamline the present application and help understand one or more of the various inventive aspects, in the description of the exemplary embodiments of the present application, the various features of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. However, the method of the present application should not be interpreted as reflecting the following intention: the claimed application requires more features than the features clearly stated in each claim. More specifically, as reflected in the corresponding claims, the inventive point is that the corresponding technical problem can be solved with features less than all the features of a single disclosed embodiment. Therefore, the claims following the specific embodiment are hereby explicitly incorporated into the specific embodiment, wherein each claim itself serves as a separate embodiment of the present application.

[0088] It will be understood by those skilled in the art that, except for mutually exclusive features, all features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed in this specification may be combined in any combination. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature that provides the same, equivalent or similar purpose.

[0089] In addition, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0090] It should be noted that the above-mentioned embodiments illustrate rather than limit the invention and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims.

Claims

1. A charging connection device, characterized in that: include: Input plug, used to connect to the power socket; An output plug, used to connect to a vehicle, wherein the input plug and the output plug are connected via a charging cable; A switch device is arranged on the charging line; and A charging management component is connected to the charging cable and the switching device, and is used to issue a first reminder message when the power socket is not grounded, and when receiving an indication from the user to confirm charging, control the switching device to conduct so as to transmit electrical energy from the power socket to the vehicle.

2. The charging connection device according to claim 1, characterized in that: The charging management component comprises: A grounding detection unit, connected to the charging cable, for detecting whether the power socket is grounded; A reminder unit, configured to send the first reminder information; an indication receiving unit, configured to receive the indication; and A control unit is connected to the grounding detection unit, the reminder unit, the indication receiving unit and the switch device, and is used to control the reminder unit to issue a first reminder message when the grounding detection unit detects that the power socket is not grounded, and to control the switch device to be turned on when the indication receiving unit receives the indication issued by the user.

3. The charging connection device according to claim 2, characterized in that: The reminder unit includes one or more of an indicator light, a speaker, a buzzer and a display screen; or, The first reminder information includes one or more of sound information, light information and image information.

4. The charging connection device according to claim 2, characterized in that: The indication receiving unit comprises an indication receiving device and a signal conversion circuit; The instruction receiving device is used to receive the user's operation instruction or voice instruction; The signal conversion circuit is connected to the indication receiving device and the control unit, and is used for converting the output signal of the indication receiving device into a digital signal and providing it to the control unit.

5. The charging connection device according to claim 4, characterized in that: The indication receiving device is a mechanical switch, a touch switch or a microphone; The signal conversion circuit is an analog-to-digital conversion circuit.

6. The charging connection device according to claim 1, characterized in that: The charging management component is used to first send out a second reminder message and then control the switch device to turn on after receiving an indication from the user to confirm charging.

7. The charging connection device according to claim 1, characterized in that: The charging line includes a live wire, a neutral wire and a ground wire; The switch device includes a live line relay arranged on the live line and / or a neutral line relay arranged on the neutral line.

8. The charging connection device according to claim 1, characterized in that: The charging connection device also includes a power supply unit, which is connected to the charging line and the charging management component and is used to draw power from the charging line and supply power to the charging management component.

9. The charging connection device according to claim 1, characterized in that: The charging connection device also includes a CP control guidance unit, which is connected to the charging management component and the output plug and is used to exchange charging information with the vehicle.

10. A charging control method, characterized in that: The charging control method comprises: When the power socket is not grounded, a first reminder message is issued; When receiving a charging confirmation instruction from the user, the switch device is controlled to be turned on to transmit the electric energy from the power supply socket to the vehicle.

11. The charging control method according to claim 10, characterized in that: The charging control method further includes: When the power supply socket is grounded, the switch device is controlled to be turned on to transmit the electric energy from the power supply socket to the vehicle.

12. The charging control method according to claim 10, characterized in that: The charging control method further includes: When the instruction is received, a second reminder message is issued.

13. The charging control method according to claim 10, characterized in that: The receiving of a charging confirmation instruction from a user includes: The preset mechanical switch is triggered; or, The preset touch switch is triggered; or, The preset microphone receives the preset voice message.

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