Charging device of vehicle and vehicle

Abstract

The invention discloses a vehicle charging device and a vehicle, relates to the technical field of vehicles, and aims to solve the problem of how to improve the safety of an electric vehicle in the charging process. The charging device comprises a charging interface structure and a second locking piece. The charging interface structure is used for being matched with the charging gun in an inserted mode. The second locking piece is connected to the charging interface structure and is used for being matched with the first locking piece so as to lock the charging gun and the charging interface structure; the device further comprises a first pressure detection piece and a controller, and the first pressure detection piece is connected to the second locking piece and used for detecting first actual pressure between the first locking piece and the second locking piece. And the controller is electrically connected with the first pressure detection piece.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a vehicle charging device and a vehicle. Background Art

[0002] Batteries play a crucial role in electric vehicles. They are their energy source and core components. For electric vehicles to function properly, they must be charged using a charging device to ensure they have sufficient power. This device typically includes a charging port located on the vehicle. The battery is charged by connecting the charging gun of a charging station to the charging port.

[0003] During the vehicle charging process, it is usually unattended. If the charging gun is pulled out abnormally, such as by a passerby out of curiosity or malicious behavior, the charging device will be damaged due to the inability to detect the abnormal pulling out of the charging gun, reducing the safety of the charging process. Summary of the Invention

[0004] The purpose of this application is to provide a vehicle charging device and a vehicle, aiming to solve the problem of how to improve the safety of electric vehicles during the charging process.

[0005] In a first aspect, a vehicle charging device is provided, which is used to charge the vehicle in cooperation with a charging gun, wherein the charging gun includes a gun body and a first locking member provided on the gun body.

[0006] The charging device includes a charging interface structure, a second locking member, a first pressure detection member and a controller. The charging interface structure is used to be plugged into and cooperate with the charging gun; the second locking member is connected to the charging interface structure and is used to cooperate with the first locking member to lock the charging gun and the charging interface structure; the first pressure detection member is connected to the second locking member and is used to detect a first actual pressure between the first locking member and the second locking member; the controller is electrically connected to the first pressure detection member.

[0007] The charging device is configured to:

[0008] If the first actual pressure is within a first preset pressure range, determining whether the first actual pressure satisfies a first abnormal condition; wherein the first abnormal condition includes that the first actual pressure appears within the first preset pressure range more than a first preset number of times within a first preset time period, or that the first actual pressure remains within the first preset pressure range for a duration exceeding a second preset time period;

[0009] If the first actual pressure satisfies a first abnormal condition, it is determined that the charging gun has an abnormal gun-pulling behavior.

[0010] In the above solution, during vehicle charging, the first locking member of the charging gun cooperates with the second locking member of the vehicle-end charging interface structure to lock and prevent the charging gun from falling out. A first pressure detection member is provided on the second locking member. When an abnormal gun withdrawal occurs, the first locking member generates a first actual pressure on the second locking member. The first actual pressure is detected by the first pressure detection member and transmitted to the controller. The controller compares the first actual pressure with the first preset pressure range. If the first actual pressure meets the first abnormal condition, it is determined that the charging gun has been abnormally withdrawn. This makes it easy to detect whether the charging gun has been abnormally withdrawn, so as to respond to abnormal gun withdrawal behavior and improve the safety of the vehicle charging process.

[0011] Optionally, the first preset pressure range includes the first actual pressure being greater than a first preset pressure and less than a second preset pressure, wherein the second preset pressure is greater than the first preset pressure.

[0012] The controller is further configured to determine that abnormal gun-pulling behavior occurs in the charging gun if the first actual pressure is greater than the second preset pressure.

[0013] Optionally, the controller is further configured to:

[0014] If it is determined that the charging gun has an abnormal pulling behavior, turning on the detection device of the vehicle to detect whether there is a person near the charging interface structure;

[0015] If there is a person near the charging port structure, the vehicle's camera device will take a photo to collect evidence and judge the person's behavior.

[0016] Optionally, the controller is further configured to:

[0017] When it is determined that the charging gun has an abnormal gun-pulling behavior, an alarm signal is issued.

[0018] Optionally, the issuing of the alarm signal includes one or more of the following:

[0019] Send out sound and light alarm signals;

[0020] Voice reminder to people near the charging interface structure;

[0021] Send an alarm signal to the car owner's mobile terminal.

[0022] Optionally, the charging interface structure is provided with a plug-in hole for plugging in the charging gun, and the plug-in hole includes relative openings and a bottom wall surface; the second locking member includes a locking portion, and the first pressure detection member is provided on the side of the locking portion facing the bottom wall surface, and when the charging interface structure is plugged in with the charging gun, a portion of the first locking member is located on the side of the first pressure detection member facing away from the locking portion.

[0023] Optionally, the charging interface structure is provided with a plug hole for plugging in the charging gun.

[0024] The charging device further includes a second pressure detecting member connected to the inner circumference of the plug hole and configured to detect a second actual pressure between the inner circumference of the plug hole and the charging gun.

[0025] Optionally, the controller is further electrically connected to the second pressure detecting member, and the controller is further configured to:

[0026] If the second actual pressure is within the second preset pressure range, determining whether the second actual pressure satisfies a second abnormal condition; wherein the second abnormal condition includes that the second actual pressure appears within the second preset pressure range more than a second preset number of times within a third preset time period, or that the second actual pressure remains within the second preset pressure range for a duration exceeding a fourth preset time period;

[0027] If the second actual pressure satisfies the second abnormal condition, it is determined that the charging gun has an abnormal gun-pulling behavior.

[0028] Optionally, the second preset pressure range includes the second actual pressure being greater than a third preset pressure and less than a fourth preset pressure, wherein the fourth preset pressure is greater than the third preset pressure.

[0029] The controller is further configured to determine that abnormal gun-pulling behavior occurs in the charging gun if the second actual pressure is greater than the fourth preset pressure.

[0030] In a second aspect, a vehicle is provided, comprising a charging device.

[0031] It should be noted that the technical effects brought about by the implementation method of the second aspect of this application can be referred to the technical effects brought about by the corresponding implementation method in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0033] Figure 1 A schematic structural diagram of a vehicle provided in an embodiment of the present application;

[0034] Figure 2 A schematic diagram of the matching structure of a first locking member and a second locking member in a first state provided in an embodiment of the present application;

[0035] Figure 3 A schematic diagram of the matching structure of a first locking member and a second locking member in a second state provided in an embodiment of the present application;

[0036] Figure 4 A schematic diagram of the arrangement structure of a second pressure detection component provided in an embodiment of the present application;

[0037] Figure 5 A flowchart for determining whether there is abnormal gun-drawing behavior based on a first actual pressure is provided in an embodiment of the present application;

[0038] Figure 6 This is a flow chart for determining whether abnormal gun-drawing behavior occurs based on a second actual pressure, provided in an embodiment of the present application.

[0039] Reference numerals:

[0040] 100. Vehicles;

[0041] 10. Vehicle body; 20. Charging port structure;

[0042] 1. First locking member; 11. Locking hook; 12. Connecting rod; 13. Contact switch; 14. Pressing portion; 15. Locking block;

[0043] 2. Second locking member; 21. Insertion hole; 22. Locking groove; 23. Locking portion;

[0044] 3. First pressure detection component;

[0045] 4. Second pressure detection component;

[0046] 5. Charging gun. DETAILED DESCRIPTION

[0047] In the embodiments of the present application, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature specified as "first," "second," "third," "fourth," "fifth," and "sixth" may explicitly or implicitly include one or more of the features.

[0048] In the embodiments of the present application, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0049] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0050] In the embodiments of the present application, "parallel", "perpendicular", and "equal" include the situations described and situations similar to the situations described, and the range of the similar situations is within an acceptable deviation range, wherein the acceptable deviation range is as determined by a person of ordinary skill in the art taking into account the measurement being discussed and the errors associated with the measurement of a specific quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range of approximate parallelism can be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range of approximate perpendicularity can also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range of approximate equality can be, for example, that the difference between the two equals is less than or equal to 5% of either one.

[0051] An embodiment of the present application provides a vehicle charging device for charging a battery of the vehicle.

[0052] For some examples, see Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle 100 provided in an embodiment of the present application. Vehicle 100 can be a pure electric vehicle, a plug-in hybrid vehicle, an extended-range electric vehicle, etc. Vehicle 100 can also be a sedan, a van, a bus, a truck, a trailer, etc. This application does not specifically limit the type of vehicle 100.

[0053] Vehicle 100 includes a vehicle body 10, which may be equipped with a power unit for driving vehicle 100. The power unit may include a motor and a battery that powers the motor. To charge the battery in vehicle 100, a charging device may be provided on vehicle body 10, connected to the battery via a circuit structure.

[0054] The charging device may include a charger and a charging interface structure 20 provided on the vehicle body 10. The charging interface structure 20 may be either an AC or DC charging interface structure. The charger is connected between the battery and the charging interface structure 20. The charging interface structure 20 connects to the charging plug 5 on the charging pile to input electrical energy. The charger then converts the AC power into DC power, which is then charged via a high-voltage control box and a DC converter to the power battery and low-voltage battery.

[0055] In some embodiments, the charging device is used to charge the vehicle 100 in conjunction with a charging gun 5. The charging gun 5 includes a gun body and a first locking member 1 disposed on the gun body. The gun body is used to connect to a power source and can be plugged into and mated with a charging interface structure 20 to charge the battery through the charging device. The first locking member 1 is used to lock the charging gun 5 with the charging interface structure 20 when the gun body is plugged into and mated with the charging interface structure 20, preventing the charging gun 5 from falling off and affecting charging.

[0056] In some embodiments, see Figure 2 and Figure 3 The charging device includes a charging interface structure 20, a second locking member 2, and a first pressure detection member 3. The charging interface structure 20 is used to plug and mate with the charging gun 5. The second locking member 2 is connected to the charging interface structure 20 and is used to cooperate with the first locking member 1 to lock the charging gun 5 and the charging interface structure 20.

[0057] For some specific examples, see Figure 2 The first locking member 1 includes a locking hook 11 and a connecting rod 12. The locking hook 11 is provided at one end of the connecting rod 12, and the overall structure is L-shaped. A pressing portion 14 is provided at the end of the connecting rod 12 away from the locking hook 11. A contact switch 13 and a sliding locking block 15 are provided below the pressing direction of the pressing portion 14. The portion of the connecting rod 12 located between the locking hook 11 and the pressing portion 14 is rotatably connected to the charging gun 5. The second locking member 2 can be a locking groove 22. The locking groove 22 can be an annular groove arranged around the charging interface structure 20, or a non-annular groove body that can accommodate the locking hook 11.

[0058] During the insertion and removal of the charging gun 5, the locking block 15 moves to the side of the pressing portion 14 away from the locking hook, allowing the pressing portion 14 to be pressed smoothly. As the pressing portion 14 is pressed, the locking hook 11 at the other end of the connecting rod 12 moves along the radial direction of the charging structure toward the side away from the locking groove 22. At this time, the locking hook 11 is disengaged from the locking groove 22, and the charging gun 5 can be inserted and removed from the charging interface structure 20. While the pressing portion 14 is being pressed, the connecting rod 12 or the pressing portion 14 will apply pressure to the contact switch 13 below it, causing the contact switch 13 to operate and cut off the power to the charging gun 5.

[0059] During the charging process, the locking block 15 moves below the pressing portion 14 to limit the pressing portion 14. At this time, the pressing portion 14 cannot be pressed, and the locking hook 11 cannot be disengaged from the locking groove 22. This locks the charging gun 5 and the charging interface structure 20 during the charging process, preventing the charging gun 5 from being pulled out during charging and causing danger. The movement of the locking block 15 can be achieved by magnetic attraction of an electromagnet or by pushing it with an electric push rod, which is not specifically limited in this application.

[0060] In some embodiments, see Figure 3 The charging device may further include a first pressure detecting member 3. The first pressure detecting member 3 is connected to the second locking member 2 and is used to detect a first actual pressure between the first locking member 1 and the second locking member 2.

[0061] In some examples, the first pressure sensing element 3 is a thin-film pressure sensor. The thickness of the first thin-film pressure sensor can range from several hundred nanometers to 0.6 mm, offering advantages such as small thickness and high sensitivity. Its operating principle is to measure pressure based on changes in electrical signals triggered by deformation of the thin-film element under stress. When the first thin-film pressure sensor is positioned within the charging interface structure 20, it occupies a relatively small space, accommodating the existing space within the charging interface structure 20 and eliminating the need for structural redesign of the charging interface structure 20.

[0062] In some specific examples, the first pressure detecting member 3 is a first thin-film pressure sensor, which is disposed on the mating surface between the locking hook 11 and the locking groove 22. When the charging gun 5 is pulled out during charging, the locking hook 11 and the locking groove 22 press against the first thin-film pressure sensor, and the first actual pressure is detected by the first thin-film pressure sensor.

[0063] In other examples, the first pressure detecting member 3 may be a tension gauge connected to the second locking member 2. When an abnormal gun drawing occurs, the first locking member 1 pulls the second locking member 2, and the second locking member 2 transmits the pulling force to the tension gauge, which then detects the first actual pressure between the first locking member 1 and the second locking member 2.

[0064] In some embodiments, the charging device further includes a controller, which is electrically connected to the first pressure detecting member 3 and configured to receive the first actual pressure detected by the first pressure detecting member 3 .

[0065] In some embodiments, the charging interface structure 20 is provided with an insertion hole 21 for receiving the charging gun 5. The insertion hole 21 includes an opposing opening and a bottom wall. The second locking member 2 includes a locking portion 23. The first pressure detection member 3 is disposed on the side of the locking portion 23 facing the bottom wall. When the charging interface structure 20 is plugged into the charging gun 5, a portion of the first locking member 1 is located on the side of the first pressure detection member 3 facing away from the locking portion 23.

[0066] The first pressure detection member 3 is provided on the side of the locking portion 23 facing the bottom wall. When the charging gun 5 is plugged into the charging interface structure 20, part of the first locking member 1 is located on the side of the first pressure detection member 3 facing away from the locking portion 23, so that the first pressure detection member 3 is placed between the locking portion 23 and the first locking member 1. When an abnormal gun withdrawal behavior occurs, the first locking member 1 is pulled toward the side away from the bottom wall of the charging interface structure 20 along with the charging gun 5. At this time, the first locking member 1 and the locking portion 23 squeeze the first pressure detection member 3 to detect the first actual pressure. The structure is simple, and can accurately identify the first actual pressure between the first locking member 1 and the second locking member 2, thereby improving the accuracy of the first actual pressure detection.

[0067] In some specific examples, the first film pressure sensor is arranged on the side of the locking portion 23 facing the bottom wall surface. When the charging interface structure 20 is plugged into the charging gun 5, the first film pressure sensor is located between the locking portion 23 and the locking hook 11.

[0068] In some embodiments, see Figure 4 The charging interface structure 20 is provided with a plug hole 21 for plugging in the charging gun 5. The charging device also includes a second pressure detection member 4, which is connected to the inner circumference of the plug hole 21 and is used to detect a second actual pressure between the inner circumference of the plug hole 21 and the charging gun 5.

[0069] During charging, the charging gun 5 engages with the plug hole 21. If the direction of withdrawal is inconsistent with the connection direction between the charging gun 5 and the charging interface structure 20, the charging gun 5 is subjected to a lateral withdrawal force, increasing the second actual pressure. A second pressure detection member 4 is provided on the inner circumference of the plug hole 21 to detect the second actual pressure between the charging gun 5 and the inner circumference of the plug hole 21. This detects the lateral withdrawal force of the charging gun 5, prevents lateral forces from damaging the charging interface structure 20, and improves the safety of charging the vehicle 100.

[0070] In some examples, the second pressure detecting member 4 may be a second thin-film pressure sensor, and the second thin-film pressure sensor may be disposed in a ring shape within the plug hole 21 .

[0071] In other examples, the second pressure detection part 4 can be a mechanical structure pressure sensor, wherein the second pressure detection part 4 can be multiple, and the multiple second pressure detection parts 4 are arranged along the circumference of the plug hole 21 to detect the lateral gun pulling force in different directions between the charging gun 5 and the plug hole 21.

[0072] It should be noted that since the second pressure detection member 4 is arranged along the inner circumference of the insertion hole 21 and there can be multiple second pressure detection members 4, the direction of the second actual pressure can be detected by the second pressure detection member 4, so as to facilitate further judgment of abnormal gun drawing behavior.

[0073] In some embodiments, the charging device is configured to:

[0074] If the first actual pressure is within the first preset pressure range, determining whether the first actual pressure satisfies a first abnormal condition; wherein the first abnormal condition includes that the first actual pressure appears within the first preset pressure range more than a first preset number of times within a first preset time period, or that the first actual pressure remains within the first preset pressure range for a duration exceeding a second preset time period;

[0075] If the first actual pressure satisfies the first abnormal condition, it is determined that the charging gun 5 has an abnormal gun-drawing behavior.

[0076] In the above scheme, during the charging process of the vehicle 100, the first locking member 1 of the charging gun 5 cooperates with the second locking member 2 of the vehicle-end charging interface structure 20 to lock and prevent the charging gun 5 from falling out. A first pressure detection member 3 is set on the second locking member 2. When abnormal gun pulling behavior occurs, the first locking member 1 generates a first actual pressure on the second locking member 2. The first actual pressure is detected by the first pressure detection member 3 and transmitted to the controller. The controller compares the first actual pressure with the first preset pressure range. If the first actual pressure meets the first abnormal condition, it is determined that the charging gun 5 has abnormal gun pulling behavior. The abnormal gun pulling behavior is judged by the first actual pressure generated by the first locking member 1 and the second locking member 2, so as to respond to the abnormal gun pulling behavior, thereby improving the safety of the charging process of the vehicle 100.

[0077] In some examples, the first preset pressure range may be 70-80N, 70-90N, 80-90N, etc., and may be adjusted according to the actual mating force between the charging gun 5 and the charging interface structure 20 .

[0078] In some examples, the first preset duration may be 2 seconds, 3 seconds, 5 seconds, etc. The first preset number of times may be 2 times, 3 times, 4 times, etc.

[0079] In some examples, the second preset duration may be 3s, 4s, 5s, etc.

[0080] For some specific examples, see Figure 5 , judging whether there is an abnormal gun-drawing behavior according to the first actual pressure includes the following steps:

[0081] S11. The first pressure detection member 3 obtains a first actual pressure. The first actual pressure is the pressure generated between the first locking member 1 and the second locking member 2 when the gun is drawn.

[0082] S12. Determine whether the first actual pressure is within the first preset pressure range. For example, if the first preset pressure range is 70-80N, if the first actual pressure detected by the first pressure detection element 3 is greater than or equal to 70N and less than or equal to 80N, it is considered that the first actual pressure is within the first preset pressure range, and the next step of determination is performed. If the first actual pressure is less than 70N or greater than 80N, it is determined that the first actual pressure is not within the first preset pressure range, and the process returns to retest.

[0083] When the first actual pressure is within the first preset pressure range, the following two judgments can be made:

[0084] The first judgment method includes the following steps:

[0085] S121: Determine whether the number of times the first actual pressure occurs within the first preset time period exceeds a first preset number of times, where the first preset number of times may be 2, 3, 4, etc.

[0086] S1211. If the first actual pressure occurs more than a first preset number of times within a first preset duration, abnormal gun drawing is confirmed. For example, the first preset duration is 4 seconds and the first preset number of times is 3. If the first actual pressure occurs more than 3 times within 4 seconds, abnormal gun drawing is confirmed.

[0087] S1212: If the first actual pressure does not occur more than the first preset number of times within the first preset time period, it is determined that no abnormal gun-drawing behavior has occurred. For example, the first preset time period is 4 seconds and the first preset number of times is 3. If the first actual pressure occurs less than or equal to 3 times within 4 seconds, it is determined that no abnormal gun-drawing behavior has occurred.

[0088] The second judgment method includes the following steps:

[0089] S122: Determine whether the duration of the first actual pressure exceeds a second preset duration, where the second preset duration can be 2s, 3s, 4s, etc.

[0090] S1221: If the duration of the first actual pressure exceeds the second preset duration, abnormal gun drawing behavior is confirmed. For example, if the second preset duration is 3 seconds and the duration of the first actual pressure exceeds 3 seconds, abnormal gun drawing behavior is confirmed.

[0091] S1222: If the duration of the first actual pressure does not exceed the second preset duration, it is determined that no abnormal gun-drawing behavior has occurred. For example, if the second preset duration is 3 seconds and the duration of the first actual pressure is 2 seconds, it is determined that no abnormal gun-drawing behavior has occurred.

[0092] In some embodiments, the first preset pressure range includes a first actual pressure greater than the first preset pressure and less than a second preset pressure, wherein the second preset pressure is greater than the first preset pressure. The controller is further configured to: if the first actual pressure is greater than the second preset pressure, determine that the charging gun 5 has abnormally withdrawn the gun. The first preset pressure and the second preset pressure are set, wherein the second preset pressure can be a pressure that may directly cause damage to the charging interface structure 20 or the charging gun 5. When the first actual pressure is greater than the second preset pressure, it is directly determined that the gun has been withdrawn abnormally, and the controller can quickly respond to improve the safety of charging the vehicle 100.

[0093] In some examples, the first preset pressure may be 70N, and the second preset pressure may be 80N.

[0094] In other examples, the first preset pressure may be 50N, and the second preset pressure may be 80N.

[0095] In some embodiments, the controller is further configured to:

[0096] If it is determined that the charging gun 5 has exhibited abnormal draw behavior, the detection equipment of the vehicle 100 is activated to detect whether there is anyone near the charging interface structure 20. If there is someone near the charging interface structure 20, the vehicle 100's camera is used to capture the scene for evidence collection and to determine the individual's behavior. After confirming abnormal draw behavior, the detection equipment of the vehicle 100 is activated to further confirm whether there is anyone near the charging interface. Once confirmed, the vehicle 100's camera is used to capture evidence and determine the individual's behavior. Based on the first actual pressure, the detection equipment and the vehicle 100's camera are combined to further determine abnormal draw behavior, thereby improving the accuracy of the determination and preventing misjudgments.

[0097] In some examples, the detection device of the vehicle 100 may be a radar. For example, a radar is provided at the charging interface structure 20 to detect whether there is a person at the charging interface by the radar.

[0098] In other examples, the detection device of the vehicle 100 may be a camera, which performs image recognition to determine whether there is a person near the charging port.

[0099] In some examples, if the vehicle 100 has a 360° panoramic imaging system, the camera device of the vehicle 100 may be the 360° panoramic imaging system.

[0100] In other examples, the imaging device of the vehicle 100 may be a camera provided at the charging interface structure 20 of the vehicle 100 .

[0101] In some examples, the behavior of a person can be judged by obtaining a real-time picture of the person through a camera device, and determining whether the person is in contact with the charging gun 5 through the picture. If abnormal gun-pulling behavior is confirmed and the person is in contact with the charging gun 5, the picture containing the contact between the person and the charging gun 5 is saved.

[0102] In some embodiments, the controller is further configured to issue an alarm signal if it is determined that the charging gun 5 has been abnormally drawn. The alarm signal issued upon determining abnormal drawing behavior can serve as a warning to the person engaging in the abnormal drawing behavior to stop and remove the person, thereby improving the safety of the charging process for the vehicle 100.

[0103] In some embodiments, issuing an alarm signal includes one or more of the following:

[0104] The audible and visual alarm signals are emitted. This not only notifies the person who has engaged in the unusual behavior of drawing a gun that their action has been identified and provides a warning, but also easily draws the attention of the vehicle owner or those around vehicle 100, thereby stopping the unusual behavior. The audible and visual alarm signals can be emitted by the vehicle's built-in lighting system and speakers, or a separate audible and visual alarm device can be provided on the charging port structure 20.

[0105] Voice reminders are provided to persons near the charging interface structure 20, for example, to persons who are abnormally pulling out guns, and to be driven away. The voice reminders can be issued through the vehicle 100's own speakers, or a separate speaker can be provided on the charging interface structure 20.

[0106] Send an alarm signal to the car owner's mobile terminal, for example, through the vehicle computer system to the car owner's terminal device, so that the car owner can prevent abnormal gun pulling behavior. The mobile terminal can be a mobile phone, smartwatch, etc.

[0107] In some examples, when an abnormal gun-drawing behavior occurs, an audible and visual alarm signal and a voice reminder can be issued, and an alarm signal can be sent to the owner's mobile phone. The multiple alarm methods can be used to increase the safety of the charging process of the vehicle 100.

[0108] In some embodiments, the controller is further electrically connected to the second pressure detecting member 4, and the controller is further configured to:

[0109] If the second actual pressure is within the second preset pressure range, a determination is made as to whether the second actual pressure satisfies a second abnormal condition. The second abnormal condition includes the second actual pressure exceeding a second preset number of times within a third preset time period, or the second actual pressure remaining within the second preset pressure range for a duration exceeding a fourth preset time period. If the second actual pressure satisfies the second abnormal condition, it is determined that abnormal removal of the charging gun 5 has occurred.

[0110] In the above scheme, a second abnormal condition is set. By comparing the second actual pressure with the second abnormal condition, if the second actual pressure meets the second abnormal condition, it is determined that the charging gun 5 has been abnormally withdrawn. The second actual pressure is the pressure between the charging gun 5 and the plug hole 21. This detects the lateral withdrawal force of the charging gun 5, prevents lateral withdrawal force from damaging the charging interface structure 20, and improves the charging safety of the vehicle 100.

[0111] It should be understood that when the direction of the force applied to the charging gun 5 is not the force in the normal direction of pulling out the gun, but a lateral force at a certain angle to the plug-in direction of the charging gun 5 and the charging interface structure 20, the first actual pressure generated at the first pressure detection part 3 may be very small, but the second actual pressure actually acting on the charging gun 5 is very large, which may also cause damage to the charging interface structure 20 or the charging gun 5. The second pressure detection part 4 is set and the second actual pressure is detected, which increases the detection range and provides more comprehensive protection for the charging interface structure 20 and the charging gun 5.

[0112] In some examples, the second preset pressure range may be 30-50N, 40-60N, 30-80N, etc.

[0113] In some examples, the third preset duration may be 3s, 4s, 5s, etc.

[0114] In some examples, the second preset number of times may be 2 times, 3 times, 4 times, etc.

[0115] In some examples, the fourth preset duration may be 2s, 3s, 4s, 5s, etc.

[0116] For some specific examples, see Figure 6 , judging whether there is an abnormal gun-drawing behavior according to the second actual pressure includes the following steps:

[0117] S21: The second pressure detection member 4 obtains a second actual pressure. The second actual pressure is the pressure between the inner circumference of the plug hole 21 and the charging gun 5 when the gun is pulled out.

[0118] S22. Determine whether the second actual pressure is within the second preset pressure range. For example, if the second preset pressure range is 50-60N, if the second actual pressure detected by the second pressure detection element 4 is greater than or equal to 50N and less than or equal to 60N, the second actual pressure is considered to be within the second preset pressure range, and the next step of determination is performed. If the second actual pressure is less than 50N or greater than 60N, the second actual pressure is determined to be not within the second preset pressure range, and the process returns to retest.

[0119] When the second actual pressure is within the second preset pressure range, the following two judgments can be made:

[0120] The first judgment method includes the following steps:

[0121] S221: Determine whether the number of times the second actual pressure occurs within the third preset time period exceeds a second preset number of times, where the second preset number of times can be 2, 3, 4, etc.

[0122] S2211. If the second actual pressure occurs more than the second preset number of times within the third preset time period, abnormal gun drawing behavior is confirmed. For example, the third preset time period is 4 seconds and the second preset number of times is 3. If the second actual pressure occurs more than 3 times within 4 seconds, abnormal gun drawing behavior is confirmed.

[0123] S2212: If the second actual pressure does not occur more than the second preset number of times within the third preset time period, it is determined that no abnormal gun-drawing behavior has occurred. For example, the third preset time period is 4 seconds and the second preset number of times is 3. If the second actual pressure occurs less than or equal to 3 times within 4 seconds, it is determined that no abnormal gun-drawing behavior has occurred.

[0124] The second judgment method includes the following steps:

[0125] S222: Determine whether the duration of the second actual pressure exceeds a fourth preset duration, where the fourth preset duration may be 2s, 3s, 4s, etc.

[0126] S2221: If the duration of the second actual pressure exceeds a fourth preset duration, abnormal gun drawing behavior is confirmed. For example, if the fourth preset duration is 3 seconds and the duration of the second actual pressure exceeds 3 seconds, abnormal gun drawing behavior is confirmed.

[0127] S2222: If the duration of the second actual pressure does not exceed the fourth preset duration, it is determined that no abnormal gun-drawing behavior has occurred. For example, if the fourth preset duration is 3 seconds and the duration of the second actual pressure is 2 seconds, it is determined that no abnormal gun-drawing behavior has occurred.

[0128] In some embodiments, the second preset pressure range includes a second actual pressure greater than a third preset pressure and less than a fourth preset pressure, wherein the fourth preset pressure is greater than the third preset pressure. The controller is further configured to: if the second actual pressure is greater than the fourth preset pressure, determine that the charging gun 5 has abnormally withdrawn the gun. The third preset pressure and the fourth preset pressure are set, wherein the fourth preset pressure can be a pressure that may directly cause damage to the charging interface structure 20 or the charging gun 5. When the second actual pressure is greater than the fourth preset pressure, it is directly determined that the gun has been withdrawn abnormally, and the controller can respond quickly to improve the safety of charging the vehicle 100.

[0129] In some examples, the third preset pressure may be 40N, and the fourth preset pressure may be 50N.

[0130] In other examples, the third preset pressure may be 70N, and the fourth preset pressure may be 80N.

[0131] In some embodiments, the specific abnormal gun-drawing behavior can be judged by detecting the magnitude and direction of the second actual pressure. The judgment method is shown in Table 1:

[0132] Table 1

[0133]

[0134] It should be noted that the direction of the second actual pressure refers to the up, down, left, and right directions relative to the person when the person is facing the vehicle 100 and the charging gun 5 is located between the person and the vehicle 100. In the description of the embodiments of the present application, specific features, structures, materials, or characteristics may be combined in any appropriate manner in any one or more embodiments or examples.

[0135] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A vehicle charging device, characterized in that: Used to cooperate with a charging gun to charge the vehicle, the charging gun comprising a gun body and a first locking member provided on the gun body; The charging device comprises: A charging interface structure, which is used to plug and cooperate with the charging gun; a second locking member connected to the charging interface structure and configured to cooperate with the first locking member to lock the charging gun and the charging interface structure; a first pressure detecting member connected to the second locking member and configured to detect a first actual pressure between the first locking member and the second locking member; a controller, the controller being electrically connected to the first pressure detecting member and configured to: If the first actual pressure is within a first preset pressure range, determining whether the first actual pressure satisfies a first abnormal condition; wherein the first abnormal condition includes that the first actual pressure appears within the first preset pressure range more than a first preset number of times within a first preset time period, or that the first actual pressure remains within the first preset pressure range for a duration exceeding a second preset time period; If the first actual pressure satisfies a first abnormal condition, it is determined that the charging gun has an abnormal gun-pulling behavior.

2. The charging device according to claim 1, characterized in that The first preset pressure range includes the first actual pressure being greater than the first preset pressure and less than the second preset pressure, wherein the second preset pressure is greater than the first preset pressure; The controller is further configured to determine that abnormal gun-pulling behavior occurs in the charging gun if the first actual pressure is greater than the second preset pressure.

3. The charging device according to claim 1, wherein: The controller is further configured to: If it is determined that the charging gun has an abnormal pulling behavior, turning on the detection device of the vehicle to detect whether there is a person near the charging interface structure; If there is a person near the charging port structure, the vehicle's camera device will take a photo to collect evidence and judge the person's behavior.

4. The charging device according to claim 1, wherein: The controller is further configured to: When it is determined that the charging gun has an abnormal gun-pulling behavior, an alarm signal is issued.

5. The charging device according to claim 4, characterized in that The alarm signal may include one or more of the following: Send out sound and light alarm signals; Voice reminder to people near the charging interface structure; Send an alarm signal to the car owner's mobile terminal.

6. The charging device according to any one of claims 1 to 5, characterized in that: The charging interface structure is provided with a plug hole for plugging the charging gun, and the plug hole includes an opening and a bottom wall surface facing each other; The second locking member includes a locking portion, the first pressure detection member is arranged on the side of the locking portion facing the bottom wall surface, and when the charging interface structure is plugged into the charging gun, a portion of the first locking member is located on the side of the first pressure detection member facing away from the locking portion.

7. The charging device according to any one of claims 1 to 5, characterized in that: The charging interface structure is provided with a plug hole for plugging in the charging gun; The charging device further includes a second pressure detecting member connected to the inner circumference of the plug hole and configured to detect a second actual pressure between the inner circumference of the plug hole and the charging gun.

8. The charging device according to claim 7, characterized in that The controller is also electrically connected to the second pressure detecting member, and the controller is further configured to: If the second actual pressure is within the second preset pressure range, determining whether the second actual pressure satisfies a second abnormal condition; wherein the second abnormal condition includes that the second actual pressure appears within the second preset pressure range more than a second preset number of times within a third preset time period, or that the second actual pressure remains within the second preset pressure range for a duration exceeding a fourth preset time period; If the second actual pressure satisfies the second abnormal condition, it is determined that the charging gun has an abnormal gun-pulling behavior.

9. The charging device according to claim 8, characterized in that The second preset pressure range includes the second actual pressure being greater than a third preset pressure and less than a fourth preset pressure, wherein the fourth preset pressure is greater than the third preset pressure; The controller is further configured to determine that abnormal gun-pulling behavior occurs in the charging gun if the second actual pressure is greater than the fourth preset pressure.

10. A vehicle, characterized in that: The charging device comprises the charging device according to any one of claims 1 to 9.

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