Power receiving device and charging system

Abstract

The utility model discloses a power receiving device and a charging system, and relates to the technical field of vehicle charging, the power receiving device comprises a power receiving seat assembly and a protective door, the power receiving seat assembly comprises a first power receiving port and a second power receiving port, the first power receiving port is arranged towards a first direction, and the second power receiving port is arranged towards a second direction; one of the first power receiving port and the second power receiving port is selected to be connected with a charging device to charge the vehicle, the protective door is movably mounted on the vehicle and surrounds the local periphery of the power receiving seat assembly, and the protective door is constructed to move between a first position and a second position so as to at least shield one of the first power receiving port and the second power receiving port. According to the power receiving device, the first power receiving port or the second power receiving port can be selectively exposed according to actual conditions, so that the power receiving device can adapt to charging devices with different layouts, the charging convenience and adaptability are remarkably enhanced, and the problem that when a certain adaptive charging device is occupied or a certain charging path is blocked by foreign matters such as rain and snow, the charging path is not damaged is solved. Therefore, the technical problem is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle charging, in particular to a power receiving device and a charging system. Background Art

[0002] The driving power of an electric vehicle (BEV) comes from an on-board rechargeable battery. It is a car powered by a rechargeable battery (such as a lead-acid battery, nickel-cadmium battery, nickel-metal hydride battery or lithium-ion battery).

[0003] At present, with the rapid development of electric vehicles, the market demand for different types of power receiving devices is increasing. Among them, the power receiving device refers to a device installed on the vehicle and used to charge the on-board rechargeable battery. When the electric vehicle needs to be charged, the power receiving seat of the electric vehicle and the charging gun head of the charging pile are connected to each other to achieve charging. However, in the existing system, the charging port of electric vehicles is mostly designed at the bottom of the vehicle. In this way, when the charging device is occupied or the charging port is blocked by rain or snow, the vehicle must be moved before charging, and it may even cause the vehicle to be unable to charge normally or the charging function to fail. Utility Model Content

[0004] The utility model aims to provide a power receiving device and a charging system, which solves the technical problem that a vehicle cannot be charged normally when a certain adapted charging device is occupied or a charging path is blocked by foreign objects such as rain or snow.

[0005] In order to achieve the above object, the utility model provides a power receiving device, comprising:

[0006] A power receiving socket assembly is used to be installed at a preset position of a vehicle, the power receiving socket assembly includes a first power receiving port and a second power receiving port, the first power receiving port is arranged in a first direction, and the second power receiving port is arranged in a second direction, and one of the first power receiving port and the second power receiving port is connected to a charging device to realize vehicle charging;

[0007] The protective door is movably mounted on the vehicle and surrounds a partial periphery of the power receiving socket assembly. The protective door is configured to be movable between a first position and a second position to at least shield one of the first power receiving port and the second power receiving port.

[0008] In some embodiments, the protective door includes a connecting plate and a shielding plate. The connecting plate can be rotatably mounted on the vehicle. The shielding plate is arc-shaped and is arranged around a partial periphery of the power receiving socket assembly. The connecting plate and the shielding plate are connected. Through the rotation of the connecting plate, the shielding plate can simultaneously shield the first power receiving port and the second power receiving port, or selectively expose one of the first power receiving port and the second power receiving port.

[0009] In some embodiments, there are two connecting plates, which are respectively arranged on both sides of the shielding plate. The shielding plate and the two connecting plates form a accommodating cavity with an open opening. By rotating the connecting plates, the first power receiving port or the second power receiving port in the accommodating cavity can be exposed through the opening.

[0010] In some embodiments, the shielding plate is constructed to be at least half an arc-shaped structure, so that when the protective door is in the initial position, it can simultaneously block the first power receiving port and the second power receiving port, and when the protective door is rotated in different directions at the same angle in the initial position, it can be rotated to the first position and the second position respectively.

[0011] In some embodiments, the power receiving device further includes a fixing seat, the fixing seat is connected to the power receiving seat assembly, and the connecting plate is rotatably connected to the fixing seat.

[0012] In some embodiments, the fixed seat is provided with a driving motor, the output shaft of the driving motor is provided with a driving gear, the driving gear is meshedly connected with a rotating gear, the rotating gear is rotatably connected to the fixed seat through a rotating shaft, and the rotating gear is fixedly connected to the connecting plate.

[0013] In some embodiments, the power receiving device further includes a conductive slip ring, which is installed on the rotating shaft and is used to connect the power receiving socket assembly and the vehicle battery to realize charging of the vehicle.

[0014] In some embodiments, the power receiving device also includes a detection limit assembly, which is installed at the boundary between the first position and the second position. The detection limit assembly includes an electronic limit switch and a mechanical limit member. The electronic limit switch is connected to the drive motor. When the protective door triggers the electronic limit switch, the drive motor stops running. The mechanical limit member is used to limit the rotation angle of the protective door.

[0015] In some embodiments, an encoder is also provided inside the drive motor, which is used to detect the rotation angle of the output shaft. The power receiving device also includes a control component, which is connected to the encoder and the electronic limit switch. The control component sends an alarm signal when the rotation angle detected by the encoder deviates from the preset rotation angle range and the electronic limit switch is not triggered by the protective door.

[0016] The utility model provides a charging system, comprising a vehicle-mounted unit and a ground unit. The vehicle-mounted unit comprises any one of the above-mentioned power receiving devices, and the ground unit comprises a charging device for connecting with a first power receiving port or a second power receiving port.

[0017] With respect to the above background technology, the power receiving device provided by the utility model includes a power receiving seat assembly and a protective door. The power receiving seat assembly includes a first power receiving port and a second power receiving port, the first power receiving port is arranged in a first direction, and the second power receiving port is arranged in a second direction, and one of the first power receiving port and the second power receiving port is connected to a charging device to realize vehicle charging, and the protective door is arranged around the partial periphery of the power receiving seat assembly, and the protective door is configured to be movable between a first position and a second position, so as to at least block one of the first power receiving port and the second power receiving port. For example, when the vehicle is not charging, the protective door can simultaneously block the first power receiving port and the second power receiving port, so as to prevent the power receiving port from being polluted by rain, snow, mud and sand, so that the power receiving port is effectively protected and the power receiving performance of the power receiving port is guaranteed; when charging with the first power receiving port, the protective door moves to the first position, exposing the first power receiving port, and blocking the second power receiving port, so that the first power receiving port and the charging device are opposite, so that the subsequent charging device is inserted into the first power receiving port to realize vehicle charging; when charging with the second power receiving port, the protective door moves to the second position, exposing the second power receiving port, and blocking the first power receiving port, so that the second power receiving port and the charging device are opposite, so that the subsequent charging device is inserted into the second power receiving port to realize vehicle charging. In other words, the power receiving device provided by the utility model exposes the first power receiving port or the second power receiving port through the movement of the protective door, so that the vehicle can select a power receiving port for charging. Of course, according to actual charging needs, the first power receiving port can be set toward the rear of the vehicle, and the second power receiving port can be set downward. The power receiving device set up in this way can choose to expose the first power receiving port or the second power receiving port according to actual conditions, which is conducive to adapting to charging devices with different layouts. The convenience and adaptability of charging are significantly enhanced, and the technical problem of the vehicle being unable to charge normally when a certain adapted charging device is occupied or a charging path is blocked by foreign objects such as rain and snow is solved.

[0018] The utility model also provides a charging system comprising the power receiving device, and its beneficial effects are as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 A schematic diagram of a power receiving device provided by an embodiment of the utility model in a non-charging state;

[0021] Figure 2 for Figure 1 A top view of

[0022] Figure 3 for Figure 1 The control block diagram in the power receiving device shown;

[0023] Figure 4 A schematic diagram of a power receiving device provided by an embodiment of the utility model in a bottom charging state;

[0024] Figure 5 This is a schematic diagram of a power receiving device provided by an embodiment of the utility model in a rear charging state.

[0025] in:

[0026] 100-power receiving socket assembly, 110-first power receiving port, 120-second power receiving port;

[0027] 200-protective door, 210-connecting plate, 220-shielding plate, 230-accommodating cavity, 231-opening;

[0028] 300-fixed seat;

[0029] 400-driving motor, 410-driving gear, 420-rotating gear, 430-rotating shaft, 440-conductive slip ring, 450-encoder;

[0030] 500-detection limit assembly, 510-electronic limit switch, 520-mechanical limit part;

[0031] 600-control components;

[0032] 700-bottom automatic charging device;

[0033] 800 - Rear automatic charging device. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0036] See also Figure 1 and Figure 2 The power receiving device provided by the utility model includes a power receiving seat assembly 100 and a protective door 200.

[0037] The power socket assembly 100 is installed at a preset position of the vehicle, such as the inner area of ​​the rear shell of the vehicle. The power socket assembly 100 includes a first power receiving port 110 and a second power receiving port 120. The first power receiving port 110 is set in the first direction, and the second power receiving port 120 is set in the second direction. When charging is required, one of the first power receiving port 110 and the second power receiving port 120 is connected to the charging device to realize vehicle charging.

[0038] It should be noted that the above-mentioned first direction can be the rear direction of the vehicle, and the second direction can be the downward direction. That is, using the setting method of the present application, the vehicle can adopt two charging methods: rear and bottom.

[0039] In addition, there may be other possible forms of the first direction and the second direction, for example, the first direction is the direction of the first power receiving port 110 toward the left / right, and the second direction is the direction of the second power receiving port 120 toward the rear, or the first direction is the direction of the first power receiving port 110 toward the left / right, and the second direction is the direction of the second power receiving port 120 toward the bottom, or the first direction is the direction of the first power receiving port 110 toward the front, and the second direction is the direction of the second power receiving port 120 toward the bottom.

[0040] The following is a specific description using an example in which the first direction is the direction in which the first power receiving port 110 faces backwards and the second direction is the direction in which the second power receiving port 120 faces downwards.

[0041] The protective door 200 can be movably mounted on the vehicle and is disposed around a partial periphery of the power receiving socket assembly 100 . The protective door 200 is configured to be movable between a first position and a second position so as to shield at least one of the first power receiving port 110 and the second power receiving port 120 .

[0042] For example, when the protective door 200 is in the initial state, it can simultaneously block the first power receiving port 110 and the second power receiving port 120 to prevent the power receiving port from being polluted by rain, snow, mud, and sand, so that the power receiving port is effectively protected; when the protective door 200 moves to the first position, the protective door 200 exposes the first power receiving port 110 and blocks the second power receiving port 120, so that the first power receiving port 110 and the charging device are opposite to each other, so that the subsequent charging device is inserted into the first power receiving port 110 to charge the vehicle; when the protective door 200 moves to the second position, the protective door 200 exposes the second power receiving port 120 and blocks the first power receiving port 110, so that the second power receiving port 120 and the charging device are opposite to each other, so that the subsequent charging device is inserted into the second power receiving port 120 to charge the vehicle.

[0043] It can be seen that, by adopting the configuration of the present application, the vehicle can be charged in two ways: bottom charging and rear charging.

[0044] Compared with the traditional setting method, when the vehicle of the present application is in a non-charging state, the protective door 200 simultaneously blocks the first power receiving port 110 and the second power receiving port 120, so as to prevent the power receiving port from being polluted by rain, snow, mud and sand, so that the power receiving port is effectively protected and the power receiving performance of the power receiving port is guaranteed; when the rear charging method is adopted, the protective door 200 moves to the first position, exposing the first power receiving port 110, and blocks the second power receiving port 120, so that the first power receiving port 110 and the charging device are opposite to each other, so that the subsequent charging device can be inserted into the first power receiving port 110 to realize the rear charging of the vehicle; when the bottom charging method is adopted, the protective door 200 moves to the second position, exposing the second power receiving port 120, and blocks the first power receiving port 110, so that the second power receiving port 120 and the charging device are opposite to each other, so that the subsequent charging device can be inserted into the second power receiving port 120 to realize the bottom charging of the vehicle.

[0045] That is, the power receiving device provided by the present invention exposes the first power receiving port 110 or the second power receiving port 120 through the movement of the protective door 200, so that the vehicle can be charged at the bottom or at the rear.

[0046] The power receiving device configured in this way can choose to expose the first power receiving port 110 or the second power receiving port 120 according to actual conditions, which is conducive to adapting to charging devices with different layouts. The convenience and adaptability of charging are significantly enhanced, and the technical problem that the vehicle cannot be charged normally when a certain adapted charging device is occupied or foreign objects such as rain and snow block a charging path is solved.

[0047] In some embodiments, to facilitate the movement of the protective door 200 , the protective door 200 may be configured to be rotatably mounted on the vehicle.

[0048] See also Figure 1 The protective door 200 includes a connecting plate 210 and a shielding plate 220. The connecting plate 210 is rotatably mounted on the vehicle. The shielding plate 220 is arc-shaped. The shielding plate 220 is arranged around a partial periphery of the power receiving socket assembly 100. The connecting plate 210 and the shielding plate 220 are connected. In this way, by rotating the connecting plate 210, the shielding plate 220 simultaneously shields the first power receiving port 110 and the second power receiving port 120, or selectively exposes the first power receiving port 110 and the second power receiving port 120.

[0049] For example, when the protective door 200 is in the initial position, the shielding plate 220 can simultaneously block the first power receiving port 110 and the second power receiving port 120. After the protective door 200 is rotated clockwise from the initial position by a preset angle, the first power receiving port 110 set toward the rear side of the vehicle can be exposed, and the second power receiving port 120 can be blocked. After the protective door 200 is rotated counterclockwise from the initial position by a preset angle, the second power receiving port 120 set toward the lower side of the vehicle can be exposed, and the first power receiving port 110 can be blocked.

[0050] Of course, the preset angle can be 90 degrees (or greater than 90 degrees), that is, the rotation angle range of the protective door 200 in the clockwise or counterclockwise direction can be set to 0-90 degrees (or greater than 90 degrees). Figure 5 When the rear of the vehicle is charged, the protective door 200 is rotated clockwise from the initial position to the first position after a preset angle, exposing the first power receiving port 110 and shielding the second power receiving port 120, so that the first power receiving port 110 is connected to the charging device, thereby realizing the rear charging of the vehicle; please refer to Figure 4 When the bottom of the vehicle is charged, the protective door 200 rotates counterclockwise from the initial position to the second position by a preset angle, exposing the second power receiving port 120 and shielding the first power receiving port 110, so that the second power receiving port 120 is connected to the charging device, thereby realizing the bottom charging of the vehicle.

[0051] With such a configuration, the protective door 200 can not only selectively expose one power receiving port to achieve a certain charging method, but also shield the other power receiving port, thereby playing an effective protective role.

[0052] More specifically, there are two connecting plates 210, and the two connecting plates 210 are respectively arranged on both sides of the shielding plate 220. The two connecting plates 210 can be integrally arranged on the shielding plate 220 to form a protective door 200 with an integrated structure. The shielding plate 220 and the two connecting plates 210 form a accommodating cavity 230 with an opening 231. The accommodating cavity 230 is used to accommodate the first power receiving port 110 and / or the second power receiving port 120. In this way, by rotating the connecting plate 210, the first power receiving port 110 or the second power receiving port 120 in the accommodating cavity 230 can be exposed through the opening 231.

[0053] It can be understood that the volume of the above-mentioned accommodating cavity 230 should be larger than the power receiving socket assembly 100, so that the power receiving socket assembly 100 can be accommodated therein when the protective door 200 is in the initial state or the non-charging state, thereby achieving effective protection of the first power receiving port 110 and the second power receiving port 120. At the same time, the opening 231 can be rectangular. As the protective door 200 rotates, the first power receiving port 110 and the second power receiving port 120 can be selectively exposed from the opening 231 to achieve charging after connection with the charging device.

[0054] In addition, a plurality of hollow holes may be provided on the connecting plate 210 to reduce the overall weight of the protective door 200 .

[0055] In some embodiments, the shielding plate 220 is constructed to be at least half an arc-shaped structure, so that the protective door 200 can simultaneously block the first power port 110 and the second power port 120 when it is in the initial position, and the protective door 200 can be rotated to the first position and the second position respectively when it is rotated in different directions at the same angle in the initial position.

[0056] Considering that the size of the opening 231 should be as large as possible to expose the first power receiving port 110 and the second power receiving port 120, the shielding plate 220 is constructed as a semi-arc structure. At this time, the length of the opening 231 is the largest, which is beneficial to expose the first power receiving port 110 and the second power receiving port 120 to the greatest extent.

[0057] In addition, the power receiving device further includes a fixing base 300 , the fixing base 300 is connected to the power receiving base assembly 100 , and the connecting plate 210 is rotatably connected to the fixing base 300 .

[0058] The fixing base 300 serves as an integral supporting structure for both the power receiving base assembly 100 and the protection door 200 , and is used to ensure the stability of the protection door 200 during the rotation process.

[0059] In order to facilitate driving the protective door 200 to rotate, the fixed base 300 is provided with a driving motor 400, and the output shaft of the driving motor 400 is provided with a driving gear 410, and the driving gear 410 is meshed and connected with a rotating gear 420, and the rotating gear 420 is rotatably connected to the fixed base 300 through a rotating shaft 430, and the connecting plate 210 is fixedly connected to the rotating gear 420 or the rotating shaft 430.

[0060] In this way, under the rotational power of the driving motor 400 , the driving gear 410 can drive the rotating gear 420 , the rotating shaft 430 and the connecting plate 210 of the protective door 200 to rotate together.

[0061] With such arrangement, when the rear charging mode of the vehicle is adopted, the driving gear 410 rotates under the driving action of the driving motor 400, and the driving gear 410 drives the rotating gear 420, the rotating shaft 430 and the protective door 200 to rotate together in the clockwise direction to the first position, the protective door 200 exposes the first power receiving port 110 and blocks the second power receiving port 120, and after the first power receiving port 110 is connected to the charging device, the rear charging of the vehicle is realized; when the bottom charging mode of the vehicle is adopted, the driving gear 410 rotates under the driving action of the driving motor 400, and the driving gear 410 drives the rotating gear 420, the rotating shaft 430 and the protective door 200 to rotate together in the counterclockwise direction to the second position, the protective door 200 exposes the second power receiving port 120 and blocks the first power receiving port 110, and after the second power receiving port 120 is connected to the charging device, the bottom charging of the vehicle is realized.

[0062] Please also read Figure 2 In order to facilitate the transmission of electrical signals when the protective door 200 rotates, the power receiving device also includes a conductive slip ring 440, which is installed on the rotating shaft 430. The conductive slip ring 440 is used to electrically connect the power receiving seat assembly 100 and the vehicle battery to realize vehicle charging.

[0063] The conductive slip ring 440 is used to connect and transmit electric energy or signals between the protective door 200 and the fixed structure (on-board battery). In the conductive slip ring 440, electric energy or signals are transmitted through the contact between the brush and the conductive ring, wherein the conductive ring is generally made of a conductive material, such as copper or an alloy, and the brush is generally made of carbon or metal. The conductive ring is fixed on the rotating shaft 430, and the brush is fixed on the fixed part and maintains contact with the conductive ring. When the rotating shaft 430 rotates, the brush slides on the conductive ring, thereby transmitting electric energy or signals from the conductive ring to the brush, thereby realizing vehicle charging. The use of sliding contact conduction helps to avoid poor contact caused by the cable falling off or loosening during rotation.

[0064] In some embodiments, please refer to Figure 3 The power receiving device also includes a detection limit assembly 500, which is installed at the boundary between the first position and the second position. Specifically, the detection limit assembly 500 includes an electronic limit switch 510 and a mechanical limit member 520. The electronic limit switch 510 is electrically connected to the control assembly 600, and the control assembly 600 is electrically connected to the drive motor 400. When the protective door 200 triggers the electronic limit switch 510, the drive motor 400 stops running. At the same time, the mechanical limit member 520 is used to limit the rotation angle of the protective door 200.

[0065] That is to say, when the protective door 200 triggers the electronic limit switch 510, the electronic limit switch 510 is triggered, and the electronic limit switch 510 transmits an in-position signal to the control component 600. After receiving the in-position signal, the control component 600 controls the drive motor 400 to stop running, and the whole process is completed automatically.

[0066] With such a configuration, when the rear of the vehicle is charged, the protective door 200 is rotated clockwise from the initial position to the first position after a preset angle, exposing the first power receiving port 110 and shielding the second power receiving port 120, so that the first power receiving port 110 is connected to the charging device, thereby realizing the rear charging of the vehicle, wherein the electronic limit switch 510 is used to detect the protective door 200 to transmit a clockwise rotation arrival signal of the protective door 200, and the mechanical limit member 520 is also used to limit the further rotation of the protective door 200 to prevent the protective door 200 from rotating. Over; when the bottom of the vehicle is charged, when the protective door 200 rotates counterclockwise from the initial position to a preset angle and reaches the second position, the second power receiving port 120 is exposed and the first power receiving port 110 is blocked, so that the second power receiving port 120 is connected to the charging device, thereby realizing the bottom charging of the vehicle, wherein the electronic limit switch 510 is used to detect the protective door 200 to transmit a signal indicating that the protective door 200 has rotated in the counterclockwise direction, and the mechanical limit member 520 is also used to limit the further rotation of the protective door 200 to prevent the protective door 200 from rotating excessively.

[0067] It should be emphasized that, under normal conditions, the driving motor 400 stops running based on triggering the electronic limit switch 510 , and the mechanical limit member 520 acts as a physical barrier, which complements the electronic limit switch 510 .

[0068] In some embodiments, an encoder 450 is also provided inside the drive motor 400, and the encoder 450 is used to detect the rotation angle of the output shaft. The power receiving device also includes a control component 600, which is connected to the encoder 450 and the electronic limit switch 510. The control component 600 sends an alarm signal when the rotation angle detected by the encoder 450 deviates from the preset rotation angle range and the electronic limit switch 510 is not triggered by the protective door 200.

[0069] It can be seen that the output shaft rotation angle information of the drive motor 400 is detected by the internal encoder 450 of the motor, thereby realizing the review of the state of the protective door 200. When the output shaft rotation angle of the drive motor 400 deviates from the preset rotation angle range and the electronic limit switch 510 still fails to detect the protective door 200, the control component 600 feedbacks the abnormality and performs fault alarm processing to prompt the charging operator to handle it in time.

[0070] The working process of the power receiving device of the utility model is described in detail below:

[0071] 1. Non-charging state

[0072] Please also read Figure 1The protective door 200 shields the first power receiving port 110 and the second power receiving port 120 at the same time, so as to prevent the power receiving port from being polluted by rain, snow, mud and sand, so that the power receiving port is effectively protected and the power receiving performance of the power receiving port is guaranteed.

[0073] 2. Automatic bottom charging

[0074] Please also read Figure 4 After the vehicle is parked, the vehicle receives the bottom charging instruction, and the driving motor 400 drives the rotating gear 420 through the gear to rotate the protective door 200 counterclockwise by 90°, and the second power receiving port 120 facing downward is opened; wherein, during the rotation of the protective door 200, the electronic limit switch 510 is used to detect that the protective door 200 is in place, and then feedback is given to the vehicle to stop the driving motor 400 from rotating. The rotation angle information of the driving motor 400 is detected by the internal encoder 450 of the motor, and the state of the protective door 200 is reviewed. When the rotation angle of the driving motor 400 deviates from the preset rotation angle range and the electronic limit switch 510 still fails to detect the protective door 200, the vehicle feedback is abnormal and a fault alarm is processed.

[0075] After the protective door 200 is rotated into place, the vehicle end sends a signal to the bottom automatic charging device 700, and the bottom charging device automatically raises the gun for charging.

[0076] After charging is completed, the charging gun head is pulled out and reset, the bottom automatic charging device 700 sends a charging completion signal to the vehicle, and the protective door 200 rotates 90° clockwise to complete the reset.

[0077] In this way, the bottom automatic charging process is completed.

[0078] 3. Automatic charging at the rear

[0079] Please also read Figure 5 After the vehicle is parked, the vehicle receives a rear charging instruction, and the drive motor 400 drives the rotating gear 420 through the gear to rotate the protective door 200 90° clockwise and open the first power receiving port 110 in the rear direction; wherein, during the rotation process of the protective door 200, the electronic limit switch 510 detects that the protective door 200 is in place, and then feedback is given to the vehicle, the drive motor 400 stops rotating, and the rotation angle information of the drive motor 400 is detected by the internal encoder 450 of the motor to review the state of the protective door 200. When the rotation angle of the drive motor 400 deviates from the preset rotation angle range and the electronic limit switch 510 still fails to detect the protective door 200, the vehicle feedback is abnormal and a fault alarm is processed.

[0080] After the protective door 200 is rotated into place, the vehicle end sends a signal to the rear automatic charging device 800, and the rear automatic charging device 800 automatically inserts the gun for charging.

[0081] After charging is completed, the charging gun head is pulled out and reset, the rear automatic charging device 800 sends a charging completion signal to the vehicle, and the protective door 200 rotates 90° counterclockwise to complete the reset.

[0082] In this way, the rear automatic charging process is completed.

[0083] 4. Use rear manual charging

[0084] Please also read Figure 5 After the vehicle is parked, the vehicle receives a charging instruction, and the drive motor 400 drives the rotating gear 420 through the gear to rotate the protective door 200 90° clockwise and open the first power receiving port 110 in the rear direction; wherein, during the rotation process of the protective door 200, the electronic limit switch 510 detects that the protective door 200 is in place, and then feedback is given to the vehicle, the drive motor 400 stops rotating, and the rotation angle information of the drive motor 400 is detected by the internal encoder 450 of the motor to review the state of the protective door 200. When the rotation angle of the drive motor 400 deviates from the preset rotation angle range and the electronic limit switch 510 still fails to detect the protective door 200, the vehicle feedback is abnormal and a fault alarm is processed.

[0085] After the protective door 200 is opened, charging is performed by manually inserting the gun.

[0086] After charging is completed, the charging gun head is pulled out, and a charging completion signal is manually sent to the vehicle, and the protective door 200 is automatically closed.

[0087] In this way, the manual charging process is completed.

[0088] The utility model provides a charging system, including a vehicle-mounted unit and a ground unit, wherein the vehicle-mounted unit includes a power receiving device as described in the above embodiment, and the ground unit includes a charging device for connecting to a first power receiving port 110 or a second power receiving port 120. The charging device may be a rear automatic charging device 800 or a bottom automatic charging device 700.

[0089] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0090] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the utility model.

Claims

1. A power receiving device, characterized in that: include: A power receiving socket assembly (100) is used to be installed at a preset position of a vehicle, the power receiving socket assembly (100) comprising a first power receiving port (110) and a second power receiving port (120), the first power receiving port (110) being arranged in a first direction, the second power receiving port (120) being arranged in a second direction, and either the first power receiving port (110) or the second power receiving port (120) being connected to a charging device to realize vehicle charging; A protective door (200) is movably mounted on the vehicle and is disposed around a portion of the periphery of the power receiving socket assembly (100). The protective door (200) is configured to be movable between a first position and a second position to at least shield one of the first power receiving port (110) and the second power receiving port (120).

2. The power receiving device according to claim 1, characterized in that: The protective door (200) comprises a connecting plate (210) and a shielding plate (220); the connecting plate (210) is rotatably mounted on the vehicle; the shielding plate (220) is arc-shaped and is arranged around a partial periphery of the power receiving socket assembly (100); the connecting plate (210) and the shielding plate (220) are connected; through the rotation of the connecting plate (210), the shielding plate (220) simultaneously shields the first power receiving port (110) and the second power receiving port (120), or selectively exposes either the first power receiving port (110) or the second power receiving port (120).

3. The power receiving device according to claim 2, characterized in that: The connecting plates (210) are in two pieces and are respectively arranged on both sides of the shielding plate (220); the shielding plate (220) and the two connecting plates (210) form a receiving cavity (230) having an opening (231); and by rotating the connecting plates (210), the first power receiving port (110) or the second power receiving port (120) in the receiving cavity (230) can be exposed through the opening (231).

4. The power receiving device according to claim 2, characterized in that: The shielding plate (220) is constructed to be in a structure of at least half an arc, so that the protective door (200) can simultaneously shield the first power receiving port (110) and the second power receiving port (120) when in the initial position, and the protective door (200) can be respectively rotated to the first position and the second position when rotating the same angle in different directions in the initial position.

5. The power receiving device according to claim 4, characterized in that: The power receiving device further comprises a fixing seat (300), the fixing seat (300) being connected to the power receiving seat assembly (100), and the connecting plate (210) being rotatably connected to the fixing seat (300).

6. The power receiving device according to claim 5, characterized in that: The fixing seat (300) is provided with a driving motor (400), the output shaft of the driving motor (400) is provided with a driving gear (410), the driving gear (410) is meshedly connected with a rotating gear (420), the rotating gear (420) is rotatably connected to the fixing seat (300) via a rotating shaft (430), and the rotating gear (420) and the connecting plate (210) are fixedly connected.

7. The power receiving device according to claim 6, characterized in that: The power receiving device further comprises a conductive slip ring (440), wherein the conductive slip ring (440) is mounted on the rotating shaft (430), and the conductive slip ring (440) is used to connect the power receiving seat assembly (100) and a vehicle-mounted battery to achieve charging of the vehicle.

8. The power receiving device according to claim 6, characterized in that: The power receiving device further comprises a detection limit assembly (500), the detection limit assembly (500) being installed at the boundary between the first position and the second position, the detection limit assembly (500) comprising an electronic limit switch (510) and a mechanical limit member (520), the electronic limit switch (510) being connected to the drive motor (400), when the protective door (200) triggers the electronic limit switch (510), the drive motor (400) stops running, and the mechanical limit member (520) is used to limit the rotation angle of the protective door (200).

9. The power receiving device according to claim 8, characterized in that: An encoder (450) is also provided inside the drive motor (400), and the encoder (450) is used to detect the rotation angle of the output shaft. The power receiving device also includes a control component (600), and the control component (600) is connected to the encoder (450) and the electronic limit switch (510). The control component (600) sends an alarm signal when the rotation angle detected by the encoder (450) deviates from a preset rotation angle range and the electronic limit switch (510) is not triggered by the protective door (200).

10. A charging system, characterized in that: It comprises an on-board unit and a ground unit, the on-board unit comprises the power receiving device as claimed in any one of claims 1 to 9, and the ground unit comprises a charging device for connecting to the first power receiving port (110) or the second power receiving port (120).

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