Magnetic coupling mechanism based on bipolar track wireless power supply system

Abstract

The utility model discloses a magnetic coupling mechanism based on a bipolar track wireless power supply system, which belongs to the field of wireless power supply and comprises a picker consisting of a magnetic core and a coil wound on the magnetic core. Compared with the prior art, the device has the advantages that the transverse surface ends of the concave magnetic frame and the inverted L-shaped supporting frame are connected through the patch type insertion structure, and the conical clamping plates on the two sides of the inner wall of the opening end of the concave magnetic frame are clamped with the conical clamping grooves in the transverse surface ends of the inverted L-shaped supporting frame; the concave magnetic frame is arranged in the concave magnetic frame, so that the concave magnetic frame cannot generate angle deviation, the conical clamping plate is fixed and cannot slide off due to vibration by obliquely inserting a positioning pin rod into the side wall of the conical clamping plate and the side wall of the conical clamping groove, and the position of the positioning pin rod is locked through a threaded column at the outermost end of the positioning pin rod.

Description

Technical Field

[0001] This utility model relates to the field of wireless power supply, specifically to a magnetic coupling mechanism based on a bipolar track wireless power supply system. Background Technology

[0002] Compared to gasoline vehicles, electric vehicles have advantages such as energy saving, emission reduction, and low cost. However, with the continuous development of electric vehicles, charging has gradually become a major issue. Currently, electric vehicles are usually charged using charging stations, but the charging speed of electric vehicles is slower than that of gasoline vehicles. This means that in urgent situations, people often use gasoline vehicles for transportation. To solve the charging problem of electric vehicles, scientists have proposed using a magnetic coupling system to charge vehicles in real time.

[0003] Existing magnetic coupling mechanisms for bipolar track-based wireless power supply systems typically consist of a pickup and a track line. The pickup includes a magnetic core and a coil. The coil receives the constantly changing magnetic field generated by the track line, which is amplified by the pickup to produce a magnetic field with a frequency similar to the Earth's magnetic field. When a vehicle passes overhead, a receiver under the vehicle receives these changing magnetic fields and converts them into alternating current. This alternating current is then converted into direct current by a current converter and fed into the battery to ensure the vehicle's continuous operation. To ensure the stability of the magnetic core and coil, the magnetic core consists of a concave magnetic frame and a T-shaped frame welded to the center of the bottom surface of the concave magnetic frame cavity. The coil is wound around the central rod of the T-shaped frame. A shaped support frame positions the track line and magnetic core, and then the longitudinal end of the shaped support frame is installed on the track for directional confirmation.

[0004] Existing concave magnetic frames are usually directly welded to or clipped onto the horizontal end of the support frame. Welding is generally used for connection, but once welded, it becomes difficult to disassemble the concave magnetic frame if it is damaged. Clipping, on the other hand, makes it difficult to guarantee the stability of the concave magnetic frame. Utility Model Content

[0005] The technical problem this invention aims to solve is that the concave magnetic frame and the shaped support frame of the existing magnetic coupling mechanism based on the bipolar track wireless power supply system are difficult to disassemble easily while ensuring connection stability.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a magnetic coupling mechanism based on a bipolar track wireless power supply system, including a pickup composed of a magnetic core and a coil wound on the magnetic core. The upper and lower ends of the coil are provided with two track lines with opposite current directions. The magnetic core is composed of a concave magnetic frame and a T-shaped frame welded to the center of the bottom surface of the concave magnetic frame cavity. The coil is wound on the central rod of the T-shaped frame. A U-shaped support frame supporting the track lines and the magnetic core is provided on one side of the top opening of the concave magnetic frame. The bottom surface of the longitudinal end of the U-shaped support frame is provided with a track that restricts the trajectory of the mobile device.

[0007] The concave magnetic frame is connected to the horizontal end of the factory-shaped support frame through a patch-type interlocking structure. The patch-type interlocking structure includes conical locking plates on both sides of the inner wall of the open end of the concave magnetic frame, a conical locking groove on the horizontal end of the factory-shaped support frame, and a positioning pin that is obliquely inserted into the side wall of the conical locking plate and the conical locking groove. A threaded post is provided on one side of the positioning pin to prevent the positioning pin from falling off. The threaded post passes through the side wall of the factory-shaped support frame.

[0008] As an improvement, the plant-shaped support frame passes through the open end of the concave magnetic frame, and the transverse side end of the plant-shaped support frame is provided with a concave frame for fixing the track line. The track line passes through the top surface of the concave frame, and the track line is connected to the inner wall of the top groove of the concave frame through an insulating sleeve. The longitudinal rod of the T-shaped frame is located inside the concave frame, and the longitudinal rod of the T-shaped frame contacts the bottom surface of the cavity of the concave frame.

[0009] As an improvement, the threaded post side of the positioning pin is provided with an internal hexagonal through hole conforming to national standards.

[0010] As an improvement, one side of the tapered engagement groove is provided with a fixed inclined surface with the same insertion angle as the positioning pin.

[0011] As an improvement, the bottom surface of the longitudinal end of the plant-shaped support frame is connected to the track via a bolt structure.

[0012] As an improvement, the distance between the two tapered locking plates is less than the length of the T-shaped bracket branch.

[0013] The advantages of this utility model compared with the prior art are as follows: This device connects the concave magnetic frame and the horizontal end of the shaped support frame through a patch-type interlocking structure. The conical interlocking plates on both sides of the inner wall of the open end of the concave magnetic frame engage with the conical interlocking groove located inside the horizontal end of the shaped support frame to ensure that the concave magnetic frame will not shift at an angle. The conical interlocking plate is fixed to prevent it from slipping due to vibration by inserting the positioning pin obliquely into the side wall of the conical interlocking plate and the conical interlocking groove. The position of the positioning pin is locked by the threaded post at the outermost end of the positioning pin. Attached Figure Description

[0014] Figure 1This is the overall structural diagram of the magnetic coupling mechanism of the present invention based on a bipolar track wireless power supply system.

[0015] Figure 2 This is a cross-sectional view of the overall structure of the magnetic coupling mechanism of the present invention based on a bipolar track wireless power supply system.

[0016] Figure 3 This is a structural diagram of the support frame of the magnetic coupling mechanism based on the bipolar track wireless power supply system of this utility model.

[0017] Figure 4 This is a structural diagram of the pickup mechanism of the magnetic coupling mechanism based on the bipolar track wireless power supply system of this utility model.

[0018] Figure 5 This is a structural diagram of the positioning pin of the magnetic coupling mechanism based on the bipolar track wireless power supply system of this utility model.

[0019] As shown in the figure: 1. Pickup device; 11. Magnetic core; 111. Concave magnetic frame; 112. T-shaped frame; 12. Coil; 2. Track line; 3. Plant-shaped support frame; 31. Concave frame; 4. Track; 5. Patch-type interlocking structure; 51. Conical interlocking plate; 52. Conical interlocking groove; 521. Fixing inclined surface; 53. Positioning pin; 531. Threaded post; 532. Internal hexagonal through hole; 6. Insulating sleeve. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] As per the instruction manual Figure 1 , 2 As shown in Figures 3, 4, and 5, a pickup 1 is included, consisting of a magnetic core 11 and a coil 12 wound around the magnetic core 11. The magnetic core 11 is composed of a concave magnetic frame 111 and a T-shaped frame 112 welded to the center of the bottom surface of the cavity of the concave magnetic frame 111. The coil 12 is wound around the central rod of the T-shaped frame 112. In order to avoid magnetic leakage, the distance between the two conical locking plates 51 is less than the length of the branch rod of the T-shaped frame 112.

[0022] The magnetic coupling mechanism of the bipolar track wireless power supply system consists of a pickup 1 and two track lines 2 with opposite current directions located at the upper and lower ends of the coil 12. In order to fix the concave magnetic frame 111 and the track lines 2, a shaped support frame 3 supporting the track lines 2 and the magnetic core 11 is provided on one side of the top opening of the concave magnetic frame 111. The bottom surface of the longitudinal end of the shaped support frame 3 is provided with a track 4 that restricts the trajectory of the mobile device. The bottom surface of the longitudinal end of the shaped support frame 3 is connected to the track 4 by a bolt structure.

[0023] The horizontal end of the plant-shaped support frame 3 is connected to the concave magnetic frame 111 via a patch-type insertion structure 5. The patch-type insertion structure 5 includes conical locking plates 51 located on both sides of the inner wall of the open end of the concave magnetic frame 111, a conical locking groove 52 located at the horizontal end of the plant-shaped support frame 3, and a positioning pin 53 that is obliquely inserted into the side walls of the conical locking plates 51 and the conical locking groove 52. The non-planar connection between the conical locking plates 51 and the conical locking groove 52 ensures that the concave magnetic frame 111 will not rotate due to external force, thereby ensuring the stability of the magnetic force line transmission. Furthermore, the positioning pin 53 ensures that the conical locking plates 51 will not slip due to external force. A threaded post 531 is provided on one side of the positioning pin 53 to prevent the positioning pin 53 from falling off.

[0024] To facilitate the disassembly of the threaded post 531, a standard-compliant internal hexagonal through hole 532 is provided on one side of the threaded post 531 of the positioning pin 53, which can be disassembled using a suitable internal hexagonal wrench. To ensure the stability of the threaded post 531 after it is screwed into the threaded hole, a fixed inclined surface 521 with the same insertion angle as the positioning pin 53 is provided on one side of the tapered engagement groove 52. The threaded post 531 of the positioning pin 53 is screwed into the inclined end of the fixed inclined surface 521, and the pin end of the positioning pin 53 is obliquely inserted into the pin through holes at both ends of the side wall of the tapered engagement plate 51 and the side wall of the tapered engagement groove 52.

[0025] To ensure a stable connection between the support frame 3 and the concave magnetic frame 111, and to fix the track line 2, the support frame 3 passes through the open end of the concave magnetic frame 111, and the side end of the support frame 3 is provided with a concave frame 31 for fixing the track line 2. The track line 2 passes through the top surface of the concave frame 31, and the track line 2 is connected to the inner wall of the top groove of the concave frame 31 through an insulating sleeve 6. The track line 2 is attached to the inner wall of the insulating sleeve 6 with glue, and the outer wall of the insulating sleeve 6 is fixed to the top groove of the concave frame 31 with wire or glue, so as to prevent the track line 2 from slipping out of the concave frame 31 due to external vibration.

[0026] In a specific implementation of this invention, when high-frequency alternating current is applied to the two track lines 2, the coil 12 will generate corresponding electromagnetic induction lines under the action of the alternating current. Because the coil 12 is made of multiple wires wound together, the intensity of the electromagnetic field it generates will be amplified for reception by the receiver. Because the input current is high-frequency alternating current, the direction of these electromagnetic induction lines is constantly changing. When a vehicle passes over the track, there is a receiver at the bottom of the vehicle with the same frequency as the magnetic field generated by the coil 12. When the receiver encounters the constantly changing magnetic field, a corresponding alternating current will be generated inside the vehicle. After conversion by the current converter inside the vehicle, it is converted into direct current for charging the vehicle battery.

[0027] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A magnetic coupling mechanism based on a bipolar track wireless power supply system, comprising a pickup (1) composed of a magnetic core (11) and a coil (12) wound on the magnetic core (11), the upper and lower ends of the coil (12) are provided with two track lines (2) with opposite current directions, the magnetic core (11) is composed of a concave magnetic frame (111) and a T-shaped frame (112) welded at the center of the bottom surface of the concave magnetic frame (111) cavity, and the coil (12) is wound on the center rod of the T-shaped frame (112), one side of the open top end of the concave magnetic frame (111) is provided with a factory-shaped support frame (3) supporting the track line (2) and the magnetic core (11), and the longitudinal end bottom surface of the factory-shaped support frame (3) is provided with a track (4) limiting the trajectory of the moving device, characterized in that: the concave magnetic frame (111) is connected with the transverse end of the factory-shaped support frame (3) through a patch type insertion structure (5), the patch type insertion structure (5) includes a tapered clamping plate (51) on both sides of the inner wall of the open end of the concave magnetic frame (111), a tapered clamping groove (52) on the transverse end of the factory-shaped support frame (3), and a positioning pin rod (53) inserted obliquely into the side walls of the tapered clamping plate (51) and the tapered clamping groove (52), and one side of the positioning pin rod (53) is provided with a threaded column (531) to prevent the positioning pin rod (53) from falling off, the threaded column (531) passes through the side wall of the factory-shaped support frame (3).

2. The magnetic coupling mechanism for a bipolar rail-based wireless power supply system according to claim 1, characterized by: The factory-shaped support frame (3) passes through the open end of the concave magnetic frame (111), and the transverse side end of the factory-shaped support frame (3) is provided with a concave frame (31) fixing the track line (2), the track line (2) passes through the top surface of the concave frame (31), and the track line (2) is connected with the inner wall of the top surface groove of the concave frame (31) through an insulating sleeve (6), the longitudinal rod of the T-shaped frame (112) is located inside the concave frame (31), and the longitudinal rod of the T-shaped frame (112) contacts the cavity bottom surface of the concave frame (31).

3. The magnetic coupling mechanism for a bipolar rail-based wireless power supply system according to claim 1, characterized by: One side of the threaded column (531) of the positioning pin rod (53) is provided with a national standard internal hexagonal via (532).

4. The magnetic coupling mechanism for a bipolar rail-based wireless power supply system according to claim 1, characterized by: One side of the tapered clamping groove (52) is provided with a fixed inclined surface (521) with the same insertion angle as the positioning pin rod (53).

5. The magnetic coupling mechanism for a bipolar rail-based wireless power supply system according to claim 1, characterized by: The longitudinal end bottom surface of the factory-shaped support frame (3) is connected with the track (4) through a bolt structure.

6. The magnetic coupling mechanism for a bipolar rail-based wireless power supply system according to claim 1, characterized by: The distance between the two tapered clamping plates (51) is less than the length of the branch rod of the T-shaped frame (112).

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