Chain belt device for wireless charging

Abstract

The utility model discloses a chain belt device used for wireless charging, comprising a chain belt, a wireless charging terminal module, a chain belt driving mechanism, a charging equipment cabinet, a cable assembly and a counterweight vehicle, one end of the chain belt is connected with the wireless charging terminal module, the other end is connected with the counterweight vehicle, one end of the cable assembly is connected with the charging equipment cabinet, and the other end is connected with the wireless charging terminal module. One end of the cable assembly is connected with the wireless charging terminal module, the other end of the cable assembly is connected with the wireless charging terminal module, the chain belt is driven by a chain belt driving mechanism, the chain belt is composed of bilaterally symmetrical chains and chain pin rods which penetrate through pin holes in the chains and are connected in parallel, and the connecting end of the cable assembly and the wireless charging terminal module is located above the chains. According to the utility model, the wireless charging primary coil can be moved to the position where the wireless charging secondary coil on the chassis of the electric vehicle is located, and accurate alignment is realized; meanwhile, the bearing structure is adopted to protect the cable, the cooling hose and other parts connected to the wireless charging terminal, and the cable and other parts are prevented from being dragged and rubbed on the ground.

Description

Technical Field

[0001] The utility model relates to the technical field of wireless charging, in particular to a chain belt device for wireless charging. Background Art

[0002] Low power transmission efficiency is one of the main obstacles to the application of high-power wireless charging technology in electric vehicles. To improve wireless charging efficiency, during the charging process using induction coils, it is generally necessary to align the primary coil on the charging device and the secondary coil on the electric vehicle as parallel as possible along the central axis, and ensure that the air gap between the two coils is as narrow as possible. If the charging device is fixed to the ground and the electric vehicle is required to precisely align the secondary coil on the vehicle with the primary coil installed on the ground when parking, the following problems will arise: Because different brands and models of electric vehicles have their secondary coils installed in different places on the bottom of the vehicle body, it is inconvenient to accurately align the electric vehicle to a specific position when parking, making it difficult to achieve precise alignment between the primary and secondary coils.

[0003] Considering the above situation, it becomes the preferred solution to allow electric vehicles to park roughly in a designated position, and then use a movable charging device to move the primary coil to a position precisely aligned with the secondary coil on the electric vehicle. The following technical solution provides a wireless charging solution in which the primary coil is installed on a wireless charging platform or tray that can be moved along a horizontal or vertical axis slide or track, so that the primary coil can be moved to achieve alignment: Application No. 201710702608.2, "An Underground Electric Vehicle Parking Lot Supporting Wired Charging and Wireless Charging," discloses an underground electric vehicle parking lot supporting wired charging and wireless charging, including a power supply, a control system, a wired charging structure, and a wireless charging structure. The wired charging structure includes a wired charging pile located on the parking surface, and the wireless charging structure includes a wireless charging device and a sliding platform located below the parking surface. The wireless charging device is installed on the sliding platform, and a position sensor is installed on the upper surface of the wireless charging device. The "Automatic Positioning and Calibration Device for Wireless Charging of Electric Vehicles" with application number 201720313682.0 discloses an automatic positioning and calibration device for wireless charging of electric vehicles, including a control box, a calibration motor, a drag coil stepper motor, a scanning motor, a distance detection module, a movable tray, a calibration motor track and a scanning distance measurement track; the control box controls and connects the calibration motor, the drag coil stepper motor, the scanning motor and the distance detection module; the calibration motor is slidably arranged on the calibration motor track; the drag coil stepper motor is connected to the calibration motor; the movable tray is slidably arranged on the drag track of the drag coil stepper motor.

[0004] The disadvantage of the above solution is that a dedicated track or slide is required to carry the wireless charging platform or tray. The wireless charging platform or tray is only a terminal for wireless power transmission. High-power cables and other components that need to be properly protected are also connected between the charging distribution cabinet and the wireless charging terminal. When the wireless charging platform or tray is moving, the protection and retraction of the cables are difficult to handle.

[0005] Similar to the above-mentioned solution of aligning the coordinate axis through a slide or track, there is also the following solution that uses a movable cart with an autonomous driving function to carry a wireless charging coil: "A precise positioning device and positioning method for wireless charging of electric vehicles" with application number 201611227448.2, includes: a transmitting coil, a transmitting coil base, a receiving coil, a position detection device, a control unit and a driving device; the position detection device is used to detect and calibrate the positions of the transmitting coil and the receiving coil; the control unit is used to receive the displacement signal sent by the position detection device and control the driving device to make corresponding position adjustments; the driving device is used to drive the transmitting coil to make corresponding displacements; through position detection, the position of the transmitting coil can be changed from four directions: front, back, left and right, which is suitable for all vehicle models with different receiving coil positions, and realizes automatic and precise alignment of the transmitting coil and the receiving coil, thereby ultimately improving charging efficiency. Application number 201310043965.4, "A Wireless Charging System for Electric Vehicles," provides a wireless charging system for electric vehicles, including a wireless charging transmitter and a wireless charging receiver, as well as a support platform for parking the electric vehicle and a support assembly for supporting the wireless charging transmitter. The wireless charging receiver is located at the bottom of the electric vehicle, with its receiving surface facing downward. At least one position adjustment mechanism capable of adjusting the height of the wireless charging transmitter is provided between the support assembly and the support platform. The height of the wireless charging transmitter can be quickly adjusted according to the vehicle's position, shortening the distance between the wireless charging transmitter and the wireless charging receiver. Application number CN201610547528.X, "Mobile Charging Device and Charging System Thereof," provides a mobile charging device and charging system therefor, comprising an electric energy generator located at a charging station, an electric vehicle, and a mobile charging device. The mobile charging device includes a signal receiving unit that detects infrared signals emitted by the signal transmitting unit in the electric energy receiving device to determine the charging location of the electric vehicle, thereby enabling wireless charging of the electric vehicle. "A Wireless Charging Device for Electric Vehicles" with application number 201520702048.7 discloses a wireless charging device for electric vehicles, including a receiving end and a transmitting end; the receiving end is installed in the vehicle body, including a receiving end coil and a vehicle-mounted battery connected by a first cable; the transmitting end is installed on a base equipped with a movable roller, including a transmitting end coil, a power supply circuit, and a power supply; the transmitting end coil, the power supply circuit, and the power supply are connected in series through a second cable; a relay coil is provided between the transmitting end coil and the receiving end coil to significantly improve the transmission efficiency.The application number 201721209263.9, "Automatic Alignment Device and Control Terminal for Wireless Charging Equipment of Electric Vehicles", provides an automatic alignment device and control terminal for wireless charging equipment of electric vehicles, which are arranged on the ground-side wireless power transmitting equipment and include the above-mentioned control terminal, power mechanism and position detection equipment; the position detection equipment is used to obtain the position information of the vehicle-mounted wireless power receiving equipment and send it to the control terminal; the power mechanism is used to drive the ground-side wireless power transmitting equipment to move to the power transmission position of the vehicle-mounted wireless power receiving equipment according to the control information sent by the control terminal.

[0006] In all of the above solutions, the cable protection and retraction issues between the wireless charging terminal and the distribution cabinet are also ignored. If any of the above solutions are used for a long time, the friction between the cable and the ground or other structural parts in the charging device will bring the risk of damage to the cable's protective insulation layer. Utility Model Content

[0007] Based on this, the purpose of the present invention is to provide a chain belt device for wireless charging to solve the technical problems raised in the above background.

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a chain belt device for wireless charging, comprising a chain belt, a wireless charging terminal module, a chain belt driving mechanism, a charging equipment cabinet, a cable assembly and a counterweight vehicle, one end of the chain belt being connected to the wireless charging terminal module, and the other end being connected to the counterweight vehicle, one end of the cable assembly being connected to the charging equipment cabinet, and the other end being connected to the wireless charging terminal module, the chain belt being driven by a chain belt driving mechanism, the chain belt being composed of a left-right symmetrical chain and chain pin rods passing through the pin holes of each section on the chain and being connected in parallel, the connection end of the cable assembly and the wireless charging terminal module being located above the chain.

[0009] Furthermore, the wireless charging terminal module includes a wireless charging primary coil, a primary coil lifting rod, a primary coil transverse base, a primary coil transverse slide and a wireless charging terminal vehicle. One end of the wireless charging terminal vehicle is connected to the chain belt and cable assembly. The primary coil transverse slide is fixedly installed on the wireless charging terminal vehicle. The primary coil transverse base is slidably installed on the primary coil transverse slide through a pulley. The wireless charging primary coil and the primary coil transverse base are connected through the primary coil lifting rod.

[0010] Furthermore, the cable assembly includes a high-voltage and communication cable and a cooling hose. One end of the high-voltage and communication cable is connected to the three-phase industrial frequency AC power in the charging equipment cabinet, and the other end is connected to the power electronic device of the wireless charging terminal module. The cooling hose is connected to the cooling equipment in the charging equipment cabinet, and the other end is connected to the power electronic device of the wireless charging terminal module.

[0011] Furthermore, the chain belt drive mechanism includes a chain belt drive wheel, a motor and a reducer. The chain belt drive wheel is provided with a serrated edge that matches the length of each section in the chain belt. The motor and reducer drive the chain belt drive wheel to rotate forward or reverse at a low speed, so that the chain belt extends forward or retracts backward.

[0012] The utility model can make the cable assembly be lifted by the pin rod on the chain belt when driving the wireless charging terminal module to extend or retract, thereby ensuring that there is basically no relative movement between the cable assembly and the pin rod, thereby avoiding the disadvantage of the cable being dragged and worn on the ground; at the same time, the wireless charging terminal module can also realize the longitudinal and lateral precise movement and positioning of the wireless charging primary coil on the ground without laying tracks through the drive of the chain belt and the primary coil transverse movement base and primary coil transverse movement slide rail carried by itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of the wireless charging terminal module of the utility model in the retracted state;

[0014] Figure 2 This is a structural diagram of the wireless charging terminal module of the utility model in the extended state;

[0015] Figure 3 It is a partial enlarged structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0016] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0017] The following describes an embodiment of the present invention based on its overall structure.

[0018] like Figure 1-Figure 2 As shown, the utility model includes a chain belt 1, a wireless charging terminal module 2, a chain belt drive mechanism 3, a charging equipment cabinet 4, a cable assembly 5 and a counterweight vehicle 6. One end of the chain belt 1 is connected to the wireless charging terminal module 2, and the other end is connected to the counterweight vehicle 6. One end of the cable assembly 5 is connected to the charging equipment cabinet 4, and the other end is connected to the wireless charging terminal module 2. The chain belt 1 is driven by the chain belt drive mechanism 3.

[0019] like Figure 3As shown, the chain belt 1 is composed of a bilaterally symmetrical chain 101 and a chain pin rod 102 that passes through the pin holes of each section of the chain 101 and is connected in parallel. Each section of the chain 101 can rotate freely around the pin rod 102 that passes through the pin holes in front and behind it. The chain belt driving mechanism 3 includes a chain belt driving wheel 301 and a motor and reducer 302. The chain belt driving wheel 301 has a toothed edge that matches the length of each section of the chain belt 1. The motor and reducer 302 can drive the chain belt driving wheel 301 at a low speed. It rotates forward or reverse, driving the chain belt 1 forward when rotating forward and driving the chain belt 1 backward when rotating reverse. The other end of the chain belt 1 is connected to the counterweight trolley 6, which is equipped with a counterweight block and a counterweight trolley driving mechanism. The driving mechanism carried on the counterweight trolley can start and run synchronously, driving the wheels of the counterweight trolley 6 to rotate, so that the counterweight trolley gives a sufficiently large pulling force to the end of the chain belt 1, so that the chain belt 1 and the chain belt driving wheel 301 maintain a close contact state.

[0020] The wireless charging terminal module 2 of the present invention is composed of a wireless charging primary coil 201 on the top, a primary coil lifting rod 202, a primary coil transverse base 203, a primary coil transverse slide rail 204, and a wireless charging terminal vehicle 205; the primary coil lifting rod 202 connects the wireless charging primary coil 201 with the primary coil transverse base 203, and can adjust the height of the wireless charging primary coil 201 by lifting and lowering. The primary coil transverse base 203 is placed on the primary coil transverse slide rail 204 through a pulley, and can carry the aforementioned wireless charging primary coil 201 and the primary coil lifting rod 202, and move laterally along the slide rail. The primary coil transverse slide rail 204 is fixedly installed on the wireless charging terminal vehicle 205, and the wireless charging terminal vehicle The rear part of 205 is connected to the end of the chain belt 1. When the end of the chain belt 1 is extended or retracted longitudinally, it can drive the wireless charging terminal vehicle 205 and all the components it carries to move. The rear part of the wireless charging terminal vehicle 205 connected to the chain belt 1 is also connected to the cable assembly 5. The cable assembly 5 includes a high-voltage and communication cable 501 and a cooling hose 502. The high-voltage and communication cable 501 inputs the three-phase industrial frequency AC power taken from the charging equipment cabinet 4 into the power electronic devices in the wireless charging terminal vehicle 205, and the power electronic devices output high-frequency AC power to supply the wireless charging primary coil 201. The cooling hose 502 contains coolant from the cooling equipment in the charging equipment cabinet 4 to cool the power electronic devices in the wireless charging terminal vehicle 205.

[0021] like Figure 1 As shown, the unextended portion of the chain belt 1 and the counterweight vehicle 6 are both located in a tunnel below the ground. The wireless charging terminal module 2 in the figure is in a retracted state and is relatively close to the chain belt drive mechanism 3. There is an underground space below the charging equipment cabinet 4 that allows the cable assembly 5 to hang freely.

[0022] like Figure 2As shown, when the wireless charging terminal module 2 is extended, the extended parts of the chain belt 1 are all located on the ground, and the dense pin rods in the chain belt 1 structure can support the cable assembly 5, so that the cable assembly 5 will not drag and rub on the ground when the wireless charging terminal module 2 moves, avoiding the disadvantage of the cable being dragged on the ground and worn.

[0023] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A chain belt device for wireless charging, characterized in that: It includes a chain belt, a wireless charging terminal module, a chain belt driving mechanism, a charging equipment cabinet, a cable assembly and a counterweight vehicle. One end of the chain belt is connected to the wireless charging terminal module, and the other end is connected to the counterweight vehicle. One end of the cable assembly is connected to the charging equipment cabinet, and the other end is connected to the wireless charging terminal module. The chain belt is driven by the chain belt driving mechanism. The chain belt is composed of a left-right symmetrical chain and a chain pin rod that passes through the pin holes of each section on the chain and is connected in parallel. The connection end of the cable assembly and the wireless charging terminal module is located above the chain.

2. The chain belt device for wireless charging according to claim 1, characterized in that: The wireless charging terminal module includes a wireless charging primary coil, a primary coil lifting rod, a primary coil transverse base, a primary coil transverse slide rail and a wireless charging terminal vehicle. One end of the wireless charging terminal vehicle is connected to the chain belt and cable assembly. The primary coil transverse slide rail is fixedly installed on the wireless charging terminal vehicle. The primary coil transverse base is slidably installed on the primary coil transverse slide rail through a pulley. The wireless charging primary coil and the primary coil transverse base are connected through the primary coil lifting rod.

3. The chain belt device for wireless charging according to claim 1, characterized in that: The cable assembly includes a high-voltage and communication cable and a cooling hose. One end of the high-voltage and communication cable is connected to the three-phase industrial frequency AC power in the charging equipment cabinet, and the other end is connected to the power electronic device of the wireless charging terminal module. The cooling hose is connected to the cooling device in the charging equipment cabinet, and the other end is connected to the power electronic device of the wireless charging terminal module.

4. The chain belt device for wireless charging according to claim 1, characterized in that: The chain belt drive mechanism includes a chain belt drive wheel, a motor and a reducer. The chain belt drive wheel is provided with a toothed edge that matches the length of each section in the chain belt. The motor and the reducer drive the chain belt drive wheel to rotate forward or reverse at a low speed, so that the chain belt extends forward or retracts backward.

Images