Power transmission device and method for vehicle charging

Abstract

The invention belongs to the technical field of vehicle charging, particularly relates to a power transmission device and method for vehicle charging, and provides a power transmission device and method for vehicle charging. During charging, a to-be-charged vehicle is driven to a charging area of a charging parking space; the detection and identification assembly detects whether the power transmission assembly and the power receiving assembly are aligned in real time, after the power transmission assembly and the power receiving assembly are aligned, the lifting assembly drives the power transmission contact block to ascend and be in butt joint with the power receiving assembly, and the control mechanism controls the power transmission assembly to transmit power to the power receiving assembly. The control mechanism controls the lifting assembly to descend, the power transmission contact block is separated from the power receiving assembly, and the vehicle drives away from the charging area of the charging parking space. When the electric vehicle is charged, the electric power transmission assembly and the electric power receiving assembly can be in automatic butt joint, a driver does not need to carry out tedious operation too much, convenience and rapidness are achieved, and meanwhile the electric vehicle charging system is further suitable for automatic charging of unmanned new energy vehicles.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle charging, and in particular relates to a power transmission device and method for vehicle charging, and is also applicable to automatic charging of unmanned vehicles. Background Art

[0002] In the prior art, new energy vehicles transmit electricity through charging guns when charging. When charging, the driver is required to get off the vehicle to take the gun, insert the gun, scan the code to charge, and return the gun. The steps are cumbersome and bring great inconvenience to the charging vehicle driver. Charging is even more inconvenient on rainy / snowy days. At the same time, the existing electric vehicle charging method is not suitable for automatic charging of unmanned new energy vehicles.

[0003] To this end, a power transmission device and method for vehicle charging are proposed. Summary of the invention

[0004] An object of the present invention is to provide a power transmission device and method for vehicle charging to solve the above-mentioned problems.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] A power transmission device for vehicle charging, comprising:

[0007] A power transmission assembly is arranged in a charging area of ​​the charging parking space, and the power transmission assembly is electrically connected to the power pile;

[0008] A power receiving assembly is arranged on the chassis of the vehicle and is adapted to the power transmission assembly. The power receiving assembly is electrically connected to the rechargeable battery. When charging, the power receiving assembly and the power transmission assembly are arranged correspondingly up and down and are electrically connected.

[0009] A control mechanism, signal-connected to the power transmission assembly and the power receiving assembly;

[0010] The power transmission assembly includes a power transmission mechanism, which includes a power transmission contact block compatible with the power receiving assembly, the bottom end of the power transmission contact block is fixedly connected to the output end of the lifting assembly, and a detection and identification component is provided on the power transmission contact block. The detection and identification component and the lifting assembly are both electrically connected to the control mechanism.

[0011] In the vehicle charging power transmission device of the present invention, the power transmission assembly further includes a power pile communication module, the power pile communication module is signal-connected to the power pile, and the power pile communication module is signal-connected to the control mechanism.

[0012] In the power transmission device for vehicle charging of the present invention, the power receiving assembly includes a power receiving mechanism, and the power receiving mechanism includes a limiting groove fixedly mounted on the vehicle chassis, the limiting groove is adapted to the power transmission contact block, and a power receiving rail is arranged in the limiting groove, the power receiving rail is electrically connected to the power transmission contact block, and the power receiving rail is electrically connected to the rechargeable battery.

[0013] In the vehicle charging power transmission device of the present invention, the power receiving assembly also includes a battery management control module, the battery management control module is signal-connected to the charging battery, the battery management control module is electrically connected to a power receiving mechanism communication module, the power receiving mechanism communication module is signal-connected to a monitoring module, and the power receiving mechanism communication module is signal-connected to the control mechanism.

[0014] In the power transmission device for vehicle charging of the present invention, the control mechanism includes a background management system, which is signal-connected to the power pile communication module and the power receiving mechanism communication module, and the background management system is signal-connected to a control end, which is controlled by the vehicle driver.

[0015] In the vehicle charging power transmission device of the present invention, the detection and identification component includes a detection module and an identification module, and both the detection module and the identification module are connected to the background management system by signal.

[0016] In the vehicle charging power transmission device of the present invention, the bottom end of the power transmission contact block is fixedly connected to the top end of the elastic component, the bottom end of the elastic component is fixedly connected to the output end of the lifting component, and the elastic force direction of the elastic component is vertically arranged.

[0017] In the vehicle charging power transmission device of the present invention, a protective cover is provided below the power receiving rail, and the protective cover is provided on the limiting groove. When not charging, the protective cover is used to protect the power receiving rail.

[0018] In the vehicle charging power transmission device of the present invention, the power transmission contact block and the power pile are connected via an electrically controlled switch, the power receiving rail and the charging battery are connected via a relay, and the electrically controlled switch and the relay are both connected to the background management system signal.

[0019] A method for using a vehicle charging power transmission device, which is used for the vehicle charging power transmission device, comprises the following steps:

[0020] Drive the vehicle to be charged to the charging area of ​​the charging parking space, and the detection and identification component detects in real time whether the power transmission assembly and the power receiving assembly are aligned. After the power transmission assembly and the power receiving assembly are aligned, the lifting component drives the power transmission contact block to rise and dock with the power receiving assembly. After the docking is completed, the control mechanism controls the power transmission assembly to transmit power to the power receiving assembly. After charging is completed, the control mechanism controls the lifting assembly to descend, the power transmission contact block is separated from the power receiving assembly, and the vehicle drives away from the charging area of ​​the charging parking space.

[0021] Compared with the prior art, the present invention has the following advantages and technical effects:

[0022] The present invention proposes a power transmission device and method for vehicle charging. During charging, the vehicle to be charged is driven to the charging area of ​​the charging parking space, and the detection and identification component detects in real time whether the power transmission assembly and the power receiving assembly are aligned. After the power transmission assembly and the power receiving assembly are aligned, the lifting component drives the power transmission contact block to rise and dock with the power receiving assembly. After the docking is completed, the control mechanism controls the power transmission assembly to transmit power to the power receiving assembly. After charging is completed, the control mechanism controls the lifting component to descend, the power transmission contact block is separated from the power receiving assembly, and the vehicle drives away from the charging area of ​​the charging parking space.

[0023] The present invention can realize automatic docking of the power transmission assembly and the power receiving assembly when the electric vehicle is charging, without the need for the driver to perform overly complicated operations, which is convenient and quick. At the same time, the present invention is also suitable for automatic charging of unmanned new energy vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a front view of the power transmission mechanism in the present invention;

[0027] Figure 3 A top view of the power transmission mechanism of the present invention;

[0028] Figure 4 A bottom view of the power receiving mechanism of the present invention;

[0029] Figure 5 It is a left side view of the power receiving mechanism in the present invention;

[0030] Figure 6 It is a schematic diagram of the cooperation between the power transmission mechanism and the power receiving mechanism in the present invention;

[0031] Figure 7 Schematic diagram of the internal structure of the limiting groove in the present invention;

[0032] Figure 8 A top view of a parking space in Embodiment 2 of the present invention;

[0033] Fig. 9 It is a schematic structural diagram of the left and right guide rollers in the present invention;

[0034] Fig.10 It is a schematic diagram of the structure of the front and rear guide blocks in the present invention;

[0035] Among them, 1. power pile; 2. power transmission mechanism; 3. power receiving mechanism; 4. rechargeable battery; 5. battery management control module; 6. power pile communication module; 7. power receiving mechanism communication module; 8. monitoring module; 9. background management system; 10. control end; 2.1. lifting component; 2.2. power transmission contact block; 2.3. sensor; 2.4. identifier; 3.1. power receiving rail; 3.2. limit groove; 3.3. guide groove; 3.4. baffle; 3.5. slider; 3.6. double screw; 3.7. drive motor; 3.8. slide groove; 5.1. installation groove; 5.2. passive roller group; 5.3. through groove; 5.4. front and rear guide blocks; 5.5. left and right guide rollers. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] Example 1

[0039] Reference Figures 1 to 7 , this embodiment discloses a vehicle charging power transmission device, comprising:

[0040] The power transmission assembly is arranged in the charging area of ​​the charging parking space, and the power transmission assembly is electrically connected to the power pile 1;

[0041] The power receiving assembly is arranged on the chassis of the vehicle and is adapted to the power transmission assembly. The power receiving assembly is electrically connected to the rechargeable battery 4. When charging, the power receiving assembly and the power transmission assembly are arranged correspondingly up and down and are electrically connected.

[0042] A control mechanism, connected to the power transmission assembly and the power receiving assembly for signals;

[0043] The power transmission assembly includes a power transmission mechanism 2, which includes a power transmission contact block 2.2 that is compatible with the power receiving assembly. The bottom end of the power transmission contact block 2.2 is fixedly connected to the output end of the lifting component 2.1. A detection and identification component is arranged on the power transmission contact block 2.2. The detection and identification component and the lifting component 2.1 are both electrically connected to the control mechanism.

[0044] The lifting assembly 2.1 is preferably a scissor-type lifting platform.

[0045] In a feasible solution, the power transmission assembly further includes a power pile communication module 6, the power pile communication module 6 is signal-connected to the power pile 1, and the power pile communication module 6 is signal-connected to the control mechanism.

[0046] In a feasible solution, the power receiving assembly includes a power receiving mechanism 3, which includes a limiting groove 3.2 fixedly mounted on the vehicle chassis, the limiting groove 3.2 is adapted to the power transmission contact block 2.2, a power receiving rail 3.1 is arranged in the limiting groove 3.2, the power receiving rail 3.1 is electrically connected to the power transmission contact block 2.2, and the power receiving rail 3.1 is electrically connected to the rechargeable battery 4.

[0047] There are multiple power receiving rails 3.1, each of which is connected to the pole of the first cable one by one. The first cable is connected to the rechargeable battery 4. Multiple poles are set on the power transmission contact block 2.2, and the multiple poles are set one by one corresponding to each power receiving rail 3.1. The multiple poles are connected to the power pile 1 through the second cable.

[0048] In a feasible solution, the power receiving assembly also includes a battery management control module 5, which is signal-connected to the rechargeable battery 4, and the battery management control module 5 is electrically connected to a power receiving mechanism communication module 7, and the power receiving mechanism communication module 7 is signal-connected to a monitoring module 8, and the power receiving mechanism communication module 7 is signal-connected to the control mechanism.

[0049] The battery management control module 5 is used to manage the charging and discharging of the rechargeable battery 4 and monitor the status of the rechargeable battery 4 in real time. The detection parameters include but are not limited to the battery power, temperature, and whether there is damage.

[0050] In a feasible solution, the control mechanism includes a background management system 9, which is signal-connected to the power pile communication module 6 and the power receiving mechanism communication module 7. The background management system 9 is signal-connected to the control terminal 10, and the control terminal 10 is controlled by the vehicle driver.

[0051] Among them, the control terminal 10 is a mobile phone APP, which is installed on the driver's mobile phone to facilitate the driver's operation / query, etc.

[0052] In a feasible solution, the detection and identification component includes a detection module and an identification module, and both the detection module and the identification module are connected to the background management system 9 by signal.

[0053] The detection module is a sensor 2.3, which is fixedly installed in the power transmission contact block 2.2 and the detection end extends out of the top surface of the power transmission contact block 2.2. Specifically, an ultrasonic sensor can be selected to sense whether there is a vehicle above the power transmission contact block 2.2;

[0054] The identification module is an identifier 2.4, which is fixedly installed in the power transmission contact block 2.2 and the detection end extends out of the top surface of the power transmission contact block 2.2. Specifically, an AI intelligent visual recognition module can be selected. The AI ​​intelligent visual recognition module is composed of a micro camera and a target recognition processing control module, and is used to identify whether the power transmission contact block 2.2 is aligned with the power receiving rail 3.1.

[0055] Working principle of AI intelligent visual recognition module:

[0056] ① Collect training feature data of the target power receiving mechanism

[0057] Collect a certain number of target power receiving mechanism images or video data such as shape, size, pixel, brightness, color in advance as training sample images or videos, extract representative feature information of the target power receiving mechanism from the images or videos, process them and store them in a computer to form a training feature image library or video library of the target power receiving mechanism;

[0058] ② Collect characteristic data of the target power receiving mechanism in the application scenario

[0059] The camera converts the collected scene target power receiving mechanism into an image signal, processes the collected scene target power receiving mechanism's shape, size, direction, posture, height, pixel, brightness, color and other characteristic information through a computer image processing system, and then extracts the image or video features of the target power receiving device in the application scene;

[0060] ③ Identification and judgment of the target power receiving mechanism in the application scenario

[0061] The computer matches and compares the acquired characteristic image or video of the target power receiving mechanism in the application scene with the image or video in the characteristic image library, thereby determining whether the object in the application scene is the target power receiving mechanism;

[0062] In a feasible solution, the bottom end of the power transmission contact block 2.2 is fixedly connected to the top end of the elastic component, the bottom end of the elastic component is fixedly connected to the output end of the lifting component 2.1, and the elastic force direction of the elastic component is set vertically.

[0063] The elastic component includes a spring, which enables the power transmission contact block 2.2 to be in close contact with the power receiving rail 3.1 while avoiding damage caused by hard contact.

[0064] In a feasible solution, a protective cover is provided below the power receiving rail 3.1, and the protective cover is provided on the limiting groove 3.2. When not charging, the protective cover is used to protect the power receiving rail 3.1.

[0065] The protective cover plate comprises a plurality of baffles 3.4, which are divided into two groups. The plurality of baffles 3.4 in the same group are arranged in interval order, and two adjacent baffles 3.4 are fixedly connected by a flexible belt. The plurality of baffles 3.4 are all slidably arranged in the guide groove 3.3, which is arranged inside the limit groove 3.2, and a slide groove 3.8 is arranged at the top of the limit groove 3.2, and two sliders 3.5 are slidably connected in the slide groove 3.8, and the two sliders 3.5 are both threadedly connected to the double screw 3.6, and the two sliders 3.5 are respectively fixedly connected to the baffles 3.4 at the end of one group of baffle groups, and the double screw 3.6 is rotatably connected in the slide groove 3.8, and one end of the double screw 3.6 is coaxially fixedly connected to the output shaft of the driving motor 3.7, and the driving motor 3.7 is fixedly installed in the limit groove 3.2, and the two sliders 3.5 move in opposite directions;

[0066] The driving motor 3.7 drives the twin screws 3.6 to rotate in the slide groove 3.8, thereby driving the two sliders 3.5 to move. The two sliders 3.5 drive the end bars 3.4 to move along the guide groove 3.3, thereby driving the bar 3.4 in the same group to move, and the bottom opening of the limit groove 3.2 is opened or closed.

[0067] In a feasible solution, the transmission contact block 2.2 is connected to the power pile 1 through an electric control switch, the power receiving rail 3.1 is connected to the rechargeable battery 4 through a relay, and the electric control switch and relay are both connected to the background management system 9 signal.

[0068] The electric control switch is used to control the connection / disconnection of power between the power transmission contact block 2.2 and the power supply pile 1, and the relay is used to control the connection / disconnection of power between the power receiving rail 3.1 and the rechargeable battery 4.

[0069] A method for using a vehicle charging power transmission device, which is used for the vehicle charging power transmission device, comprises the following steps:

[0070] Drive the vehicle to be charged to the charging area of ​​the charging parking space, and the detection and identification component detects in real time whether the power transmission assembly and the power receiving assembly are aligned. After the power transmission assembly and the power receiving assembly are aligned, the lifting component 2.1 drives the power transmission contact block 2.2 to rise and dock with the power receiving assembly. After the docking is completed, the control mechanism controls the power transmission assembly to transmit power to the power receiving assembly. After charging is completed, the control mechanism controls the lifting component 2.1 to descend, the power transmission contact block 2.2 is separated from the power receiving assembly, and the vehicle drives away from the charging area of ​​the charging parking space.

[0071] Charging process:

[0072] The vehicle to be charged is driven to the charging area of ​​the charging parking space, and the sensor 2.3 is used to detect whether there is a vehicle above the power transmission contact block 2.2. When the presence of the vehicle is detected, the signal is transmitted to the background management system 9, and the background management system 9 controls the identifier 2.4 to start, and the identifier 2.4 sends the identification signal to the background management system 9. The background management system 9 transmits the signal to the control terminal 10. The driver adjusts the vehicle position according to the display information of the control terminal 10 until the power transmission contact block 2.2 is aligned with the power receiving rail 3.1. At this time, the protective cover is opened, and the background management system 9 controls the lifting component 2.1 to rise, driving the power transmission contact block 2.2 to rise. After the power transmission contact block 2.2 enters the limit groove 3.2, it is aligned with the power receiving rail 3.1. The driver controls / pays through the control terminal 10. After the background management system 9 receives the signal from the control terminal 10, the electric control switch is opened, the relay is connected, and charging is carried out. In this process, the battery management control module 5 monitors the status of the rechargeable battery 4 in real time, and transmits it to the background management system 9 through the power receiving mechanism communication module 7. The power pile communication module 6 transmits the information of the power pile 1 to the background management system 9 to monitor the charging status in real time.

[0073] After charging is completed, the electric control switch is closed, the relay is disconnected, the background management system 9 controls the lifting assembly 2.1 to descend, the power transmission contact block 2.2 is separated from the power receiving rail 3.1, the protective cover is closed, and the driver drives the vehicle away from the charging area of ​​the charging parking space.

[0074] Example 2

[0075] Reference Figures 8 to 10 , which is different from Example 1 in that a through groove 5.3 is provided in the middle of the parking space for receiving the power transmission contact block 2.2, and two mounting grooves 5.1 are provided on the parking space corresponding to the rear wheels of the vehicle, and the two mounting grooves 5.1 are arranged corresponding to the rear wheels of the two vehicles, and a passive roller group 5.2 is rotatably connected in the mounting groove 5.1, and the passive roller group 5.2 includes a plurality of passive rollers, and the axis of the passive roller is parallel to the driving direction of the vehicle;

[0076] Two front wheel guide mechanisms are arranged at the parking space corresponding to the front wheels of the vehicle. The two front wheel guide mechanisms are arranged corresponding to the two front wheels of the vehicle respectively. The front wheel guide mechanisms include two front and rear guide blocks 5.4 and two left and right guide rollers 5.5. The two front and rear guide blocks 5.4 are respectively located at the front and rear sides of the front wheels of the vehicle, and the two left and right guide rollers 5.5 are respectively located at the left and right sides of the front wheels of the vehicle.

[0077] With such an arrangement, there is no need for detection and identification components. The driver only needs to stop the vehicle in place, and the front wheel guide mechanism and the passive roller group 5.2 cooperate to position the vehicle, and then scan the code to pay for charging.

[0078] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0079] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A power transmission device for vehicle charging, characterized in that: include: A power transmission assembly is arranged in a charging area of ​​the charging parking space, and the power transmission assembly is electrically connected to the power supply pile (1); A power receiving assembly is arranged on the chassis of the vehicle and is compatible with the power transmission assembly. The power receiving assembly is electrically connected to the rechargeable battery (4). When charging, the power receiving assembly and the power transmission assembly are arranged correspondingly up and down and are electrically connected. A control mechanism, signal-connected to the power transmission assembly and the power receiving assembly; The power transmission assembly comprises a power transmission mechanism (2), the power transmission mechanism (2) comprises a power transmission contact block (2.2) adapted to the power receiving assembly, the bottom end of the power transmission contact block (2.2) being fixedly connected to the output end of the lifting component (2.1), the power transmission contact block (2.2) being provided with a detection and identification component, the detection and identification component and the lifting component (2.1) being electrically connected to the control mechanism.

2. A vehicle charging power transmission device according to claim 1, characterized in that: The power transmission assembly further comprises a power pile communication module (6), the power pile communication module (6) being signal-connected to the power pile (1), and the power pile communication module (6) being signal-connected to the control mechanism.

3. A vehicle charging power transmission device according to claim 2, characterized in that: The power receiving assembly comprises a power receiving mechanism (3), the power receiving mechanism (3) comprises a limiting groove (3.2) fixedly mounted on a vehicle chassis, the limiting groove (3.2) being adapted to the power transmission contact block (2.2), a power receiving guide rail (3.1) being arranged in the limiting groove (3.2), the power receiving guide rail (3.1) being electrically connected to the power transmission contact block (2.2), and the power receiving guide rail (3.1) being electrically connected to the rechargeable battery (4).

4. A vehicle charging power transmission device according to claim 3, characterized in that: The power receiving assembly further comprises a battery management control module (5), the battery management control module (5) being signal-connected to the rechargeable battery (4), the battery management control module (5) being electrically connected to a power receiving mechanism communication module (7), the power receiving mechanism communication module (7) being signal-connected to a monitoring module (8), and the power receiving mechanism communication module (7) being signal-connected to the control mechanism.

5. A vehicle charging power transmission device according to claim 4, characterized in that: The control mechanism comprises a background management system (9), the background management system (9) is signal-connected to the power supply pile communication module (6) and the power receiving mechanism communication module (7), the background management system (9) is signal-connected to a control end (10), and the control end (10) is controlled by a vehicle driver.

6. A vehicle charging power transmission device according to claim 5, characterized in that: The detection and identification component comprises a detection module and an identification module, and both the detection module and the identification module are connected to the background management system (9) by signal.

7. A vehicle charging power transmission device according to claim 1, characterized in that: The bottom end of the power transmission contact block (2.2) is fixedly connected to the top end of the elastic component, the bottom end of the elastic component is fixedly connected to the output end of the lifting component (2.1), and the elastic force direction of the elastic component is arranged vertically.

8. A vehicle charging power transmission device according to claim 3, characterized in that: A protective cover plate is provided below the power receiving rail (3.1), and the protective cover plate is provided on the limiting groove (3.2). When not charging, the protective cover plate is used to protect the power receiving rail (3.1).

9. A vehicle charging power transmission device according to claim 5, characterized in that: The power transmission contact block (2.2) is connected to the power supply post (1) via an electric control switch, the power receiving rail (3.1) is connected to the rechargeable battery (4) via a relay, and both the electric control switch and the relay are connected to the background management system (9) by signal.

10. A method for using a vehicle charging power transmission device, used for the vehicle charging power transmission device according to any one of claims 1 to 9, characterized in that: Here are the steps: The vehicle to be charged is driven to the charging area of ​​the charging parking space, and the detection and identification component detects in real time whether the power transmission assembly and the power receiving assembly are aligned. After the power transmission assembly and the power receiving assembly are aligned, the lifting component (2.1) drives the power transmission contact block (2.2) to rise and dock with the power receiving assembly. After the docking is completed, the control mechanism controls the power transmission assembly to transmit power to the power receiving assembly. After charging is completed, the control mechanism controls the lifting component (2.1) to descend, the power transmission contact block (2.2) is separated from the power receiving assembly, and the vehicle drives away from the charging area of ​​the charging parking space.

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