Magnetic resonance coil device for wireless power transmission

Abstract

The invention relates to the technical field of magnetic resonance coils, and discloses a wireless power transmission-oriented magnetic resonance coil device, which comprises a fixed base, lifting mechanisms are fixedly connected to the two sides of the top end of the fixed base, rotating shafts are movably connected to the interiors of the lifting mechanisms, and adjusting mechanisms are fixedly connected to the side surfaces of the rotating shafts. The side face of the adjusting mechanism is fixedly connected with a limiting mechanism, and the side face of the rotating shaft is fixedly connected with a rotating disc. When a connecting shaft rotates, an output gear is driven to rotate through an output shaft, when the output gear rotates, a movable rack drives a forming groove disc to move outwards or inwards, at the moment, the diameter of a groove disc formed by the six forming groove discs can be adjusted, and the forming device is suitable for coils of different environments and different diameters; a manual mode is adopted, no electric power or magnetic force needs to be applied, and therefore operation of the magnetic resonance coil cannot be affected.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic resonance coils, and more particularly to a magnetic resonance coil device for wireless power transmission. Background Art

[0002] Wireless power transmission has superior performance and can overcome the problems of insufficient or difficult power supply and power insulation safety accidents at traditional power sites. It can realize online monitoring of the status of power transmission and transformation equipment and reliable transmission of power distribution information. In the online monitoring of the status of transmission lines and substation equipment, wireless power transmission uses magnetic resonance wireless power transmission technology, which can reliably deploy a large number of sensors on transmission cables, transformers, switches and other equipment for a long time to conduct online status monitoring.

[0003] As a bridge for wireless power transmission, the magnetic resonance coil plays a vital role in the entire system. The magnetic resonance coil determines the performance parameters such as the distance, power and efficiency of energy transmission. If the performance of the magnetic resonance coil is excellent, the performance of the entire power transmission system will be improved. However, the current magnetic resonance coil has the following problems:

[0004] When winding the coil, the shaped slot disk of the magnetic resonance coil is usually an integrated fixed structure. Therefore, after winding, the formed magnetic resonance coil is fixed. However, in actual use, the magnetic resonance coil needs to be adjusted according to the power transmission conditions on site. The current magnetic resonance coil cannot be adjusted freely.

[0005] When an adjustable forming manipulator is used for coil winding, the current adjustable device cannot guarantee its stability when subjected to external force after adjustment, so it will continue to adjust, which will cause the diameter of the magnetic resonance coil to change, and in severe cases, will cause problems in the power transmission process. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a magnetic resonance coil device for wireless power transmission to solve the technical problems raised in the background art.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a magnetic resonance coil device for wireless power transmission, comprising a fixed base, both sides of the top of the fixed base are fixedly connected to a lifting mechanism, the lifting mechanism is movably connected to a rotating shaft inside, the side of the rotating shaft is fixedly connected to an adjustment mechanism, the side of the adjustment mechanism is fixedly connected to a limiting mechanism, and the side of the rotating shaft is fixedly connected to a rotating disk;

[0008] The adjusting mechanism includes a connecting circular plate fixedly connected to the rotating shaft, an outer fixing ring is fixedly connected to the side of the connecting circular plate, and an inner fixing ring is arranged inside the outer fixing ring, the side of the connecting circular plate is fixedly connected to the side of the inner fixing ring, the inner and outer fixing rings are both movably connected with a moving rack, the outer side of the moving rack is fixedly connected with a forming groove plate, the side of the moving rack is meshed with an output gear, the bottom end of the output gear is meshed with a gear ring, the inner side of the gear ring is meshed with a driven gear, and movable avoidance holes are provided in the inner and outer fixing rings.

[0009] In a preferred embodiment, the number of the driven gears is five, the five driven gears have the same structure as the output gear, and the driven gears and the output gears are distributed at equal angles in the outer fixed ring, the side surfaces of the output gears are meshed with movable racks, and the outer sides of the six movable racks are connected to molded groove plates.

[0010] In a preferred embodiment, the gear ring rotates within the outer fixed ring, and the output gear drives the five driven gears to rotate synchronously through the gear ring. The inner side of the movable rack is fixedly connected with an inner limit ring, and both sides of the inner and outer fixed rings are fixedly connected with connecting circular plates. When the inner limit ring moves to the innermost side, it does not contact the rotating shaft.

[0011] In a preferred embodiment, the output gear is fixedly connected to an output shaft inside, the output shaft is fixedly connected to a connecting shaft on the side away from the output gear, the top of the connecting shaft is fixedly connected to the bottom end of the limiting mechanism, the gear ring and the movable rack are located on both sides of the outer fixed ring, and the gear ring and the movable rack do not contact each other during operation.

[0012] In a preferred embodiment, the limiting mechanism includes a fixing cylinder fixedly connected to the connecting shaft, the bottom end of the outer fixing ring is fixedly connected to a fixing rod, the top end of the fixing rod is movably connected to a limiting sleeve, a limiting hole for movement of the fixing rod is provided inside the limiting sleeve, the top end of the limiting sleeve is fixedly connected to a sliding disk, the top end of the sliding disk is fixedly connected to a connecting block, and the side of the connecting block away from the connecting circular plate is fixedly connected to a toggle rod.

[0013] In a preferred embodiment, a supporting spring is sleeved on the side of the fixing rod and the limiting sleeve, the supporting spring is located in the fixing cylinder, and a through groove adapted to the connecting block is provided at the top of the fixing cylinder, a fixing ring is provided on the side of the fixing cylinder, and the side of the fixing ring is fixedly connected to the side of the connecting circular plate, a gear slot is provided inside the fixing ring, the connecting block is located in the gear slot, and the central axis of the connecting shaft coincides with the central axis of the fixing ring.

[0014] In a preferred embodiment, the lifting mechanism includes a supporting box, the interior of the supporting box is movably connected with a lifting block, the interior of the supporting box is fixedly connected with a partition plate, the lifting block is located above the partition plate, the top end of the supporting box is fixedly connected with a limit block, and the side of the lifting block is provided with a sliding groove adapted to the limit block.

[0015] In a preferred embodiment, the bottom end of the lifting block is threadedly connected to a threaded rod, the bottom end of the threaded rod is fixedly connected to a first bevel tooth, the side of the first bevel tooth is meshed with a second bevel tooth, the side of the second bevel tooth away from the first bevel tooth is fixedly connected to a rotating wheel, and the first bevel tooth and the second bevel tooth are both located below the partition plate.

[0016] Technical effects and advantages of the present invention:

[0017] 1. When the connecting shaft of the present invention rotates, the output shaft drives the output gear to rotate. When the output gear rotates, the movable rack drives the forming slot disk to move outward or inward. At this time, the diameter of the slot disk composed of the six forming slot disks can be adjusted to adapt to different environments and coils of different diameters. In addition, when the present invention is adjusted, it adopts a manual method without applying electricity or magnetic force, so it will not affect the operation of the magnetic resonance coil;

[0018] 2. The toggle lever of the present invention is pulled to move the toggle lever out of the gear slot, and the connecting shaft can be rotated for adjustment. When the toggle lever is pulled out of the gear slot, the toggle lever moves to drive the connecting block and the sliding plate to move, and the sliding plate will compress the supporting spring when it moves. After adjustment, the toggle lever is released, and the supporting spring will reset and drive the connecting block to be inserted into the gear slot, limiting the position of the connecting shaft, so that the diameter of the limiting mechanism will not change;

[0019] 3. In the present invention, when the diameter of the limiting mechanism is adjusted, the rotating wheel is rotated. When the rotating wheel rotates, the second bevel gear and the first bevel gear drive the threaded rod to rotate. The rotation of the threaded rod causes the lifting block to move up and down, thereby adjusting the height of the limiting mechanism. After the diameter of the limiting mechanism is adjusted, when the diameter is larger, the limiting mechanism is higher and will not contact the fixed base. When the diameter of the limiting mechanism is smaller, the height of the limiting mechanism is lower, which can save space. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the connection structure between the adjustment mechanism and the limiting mechanism of the present invention.

[0022] Figure 3 It is a schematic diagram of the overall structure of the adjustment mechanism of the present invention.

[0023] Figure 4 It is a schematic diagram of the exploded structure of the regulating mechanism of the present invention.

[0024] Figure 5 It is a schematic diagram of the overall structure of the limiting mechanism of the present invention.

[0025] Figure 6 It is a schematic diagram of the internal structure of the fixing cylinder of the present invention.

[0026] Figure 7 It is a schematic diagram of the connection structure between the lifting mechanism and the rotating shaft of the present invention.

[0027] Figure 8 It is a schematic diagram of the exploded structure of the lifting mechanism of the present invention.

[0028] The reference numerals are: 1, fixed base; 2, lifting mechanism; 201, support box; 202, partition plate; 203, lifting block; 204, limit block; 205, threaded rod; 206, first bevel gear; 207, second bevel gear; 208, rotating wheel; 3, rotating shaft; 4, rotating disk; 5, adjusting mechanism; 501, connecting circular plate; 502, inner fixing ring; 503, outer fixing ring; 504, moving rack; 5 05, forming groove plate; 506, inner limit ring; 507, gear ring; 508, output gear; 509, output shaft; 510, connecting shaft; 511, driven gear; 6, limit mechanism; 601, fixing ring; 602, gear slot; 603, fixing cylinder; 604, fixing rod; 605, limit sleeve; 606, sliding plate; 607, supporting spring; 608, connecting block; 609, toggle rod. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The magnetic resonance coil device for wireless power transmission involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0030] Reference Figure 1 The present invention provides a magnetic resonance coil device for wireless power transmission, including a fixed base 1, both sides of the top of the fixed base 1 are fixedly connected with a lifting mechanism 2, the lifting mechanism 2 is movably connected with a rotating shaft 3 inside, the side of the rotating shaft 3 is fixedly connected with an adjusting mechanism 5, the side of the adjusting mechanism 5 is fixedly connected with a limiting mechanism 6, and the side of the rotating shaft 3 is fixedly connected with a rotating disk 4.

[0031] In the embodiment of the present application, when the rotating disk 4 is rotated, the adjusting mechanism 5 is rotated through the rotating shaft 3, so that the coil can be wound, and the number of the adjusting mechanisms 5 of the present application can be set so that they can be used in different power transmission environments.

[0032] Reference Figure 1 , Figure 2 , Figure 3 as well as Figure 4 The adjusting mechanism 5 includes a connecting circular plate 501 fixedly connected to the rotating shaft 3, an outer fixing ring 503 is fixedly connected to the side of the connecting circular plate 501, and an inner fixing ring 502 is arranged inside the outer fixing ring 503, the side of the connecting circular plate 501 is fixedly connected to the side of the inner fixing ring 502, and the inner fixing ring 502 and the outer fixing ring 503 are both movably connected with a moving rack 504, and the outer side of the moving rack 504 is fixedly connected with a forming groove plate 505, and the side of the moving rack 504 is meshed with an output gear 508, and the bottom end of the output gear 508 is meshed with a gear ring 507, and the inner side of the gear ring 507 is meshed with a driven gear 511, and the inner fixing ring 502 and the outer fixing ring 503 are both provided with avoidance holes for movement, and the number of the driven gears 511 is five, and the five driven gears 511 have the same structure as the output gear 508, and the driven gears 511 and the output gear 508 are distributed at equal angles on the outer fixing ring 503, the side surfaces of the output gear 508 are meshed with movable racks 504, and the outer sides of the six movable racks 504 are connected to molded groove plates 505, and the gear ring 507 rotates in the outer fixed ring 503. The output gear 508 drives the five driven gears 511 to rotate synchronously through the gear ring 507, and the inner side of the movable rack 504 is fixedly connected with an inner limit ring 506, and both sides of the inner fixed ring 502 and the outer fixed ring 503 are fixedly connected with connecting circular plates 501. When the inner limit ring 506 moves to the innermost side, it does not contact the rotating shaft 3, and the output shaft 509 is fixedly connected to the inside of the output gear 508, and the side of the output shaft 509 away from the output gear 508 is fixedly connected with a connecting shaft 510, and the top of the connecting shaft 510 is fixedly connected to the bottom end of the limiting mechanism 6, and the gear ring 507 and the movable rack 504 are located on both sides of the outer fixed ring 503, and the gear ring 507 and the movable rack 504 do not contact each other during operation.

[0033] In the embodiment of the present application, when it is necessary to wind forward with different diameters, the connecting shaft 510 drives the output gear 508 to rotate through the output shaft 509. When the output gear 508 rotates, it drives the five driven gears 511 to rotate synchronously through the gear ring 507. Therefore, the output gear 508 and the driven gear 511 will rotate synchronously. When the output gear 508 and the driven gear 511 rotate, the moving rack 504 will move inward or outward. When the moving rack 504 moves, it drives the forming groove plate 505 to move. Thus, the diameter of the coil is automatically adjusted, and when the diameter is adjusted, the present application does not need to use electric power or magnetic force to apply power, so when the coil is wound and power is transmitted, it will not affect the power transmission process, and the inner fixed ring 502 and the outer fixed ring 503 are connected to the rotating shaft 3 through the connecting circular plate 501, so as to support the adjustment mechanism 5 as a whole, and the inner fixed ring 502 and the outer fixed ring 503 are provided with avoidance holes for the movable rack 504 to move, so as to ensure the stability of the movable rack 504 when moving;

[0034] An inner limit ring 506 is provided on the inner side of the movable rack 504, so when the movable rack 504 moves outward, the inner limit ring 506 can prevent the movable rack 504 from falling off, and when the movable rack 504 moves inward, a distance is left between the inner limit ring 506 and the rotating shaft 3, which can prevent the inner limit ring 506 from contacting the rotating shaft 3 and being damaged. The driven gear 511 and the output gear 508 are distributed at equal angles in the outer fixed ring 503, and the six formed groove disks 505 are also distributed at equal angles on the outside of the outer fixed ring 503, so that when the formed groove disk 505 is used for coil winding, the quality of the wound coil is higher, and the gear ring 507 and the movable rack 504 are located on both sides of the outer fixed ring 503, so the gear ring 507 and the movable rack 504 do not interfere with each other during operation, thereby ensuring the stability of the adjustment mechanism 5 during operation.

[0035] Reference Figure 3 , Figure 5 as well as Figure 6The limiting mechanism 6 includes a fixed cylinder 603 fixedly connected to the connecting shaft 510, a fixed rod 604 is fixedly connected to the bottom end of the outer fixing ring 503, a limiting sleeve 605 is movably connected to the top of the fixing rod 604, a limiting hole for the fixing rod 604 to move is provided inside the limiting sleeve 605, a sliding disk 606 is fixedly connected to the top of the limiting sleeve 605, a connecting block 608 is fixedly connected to the top of the sliding disk 606, and a toggle rod 609 is fixedly connected to the side of the connecting block 608 away from the connecting circular plate 501, A support spring 607 is sleeved on the side of the fixed rod 604 and the limiting sleeve 605, and the support spring 607 is located in the fixed cylinder 603. The top of the fixed cylinder 603 is provided with a through groove adapted to the connecting block 608. A fixing ring 601 is provided on the side of the fixed cylinder 603. The side of the fixing ring 601 is fixedly connected to the side of the connecting circular plate 501. A gear slot 602 is provided inside the fixing ring 601. The connecting block 608 is located in the gear slot 602, and the central axis of the connecting shaft 510 coincides with the central axis of the fixing ring 601.

[0036] In the embodiment of the present application, the connecting block 608 can be moved more labor-savingly by toggling the lever 609, so as to prevent the connecting block 608 from being stuck in the gear slot 602 and unable to be moved out. When the connecting block 608 is moved out of the gear slot 602, the connecting shaft 510 can be rotated arbitrarily, so as to adjust the adjustment mechanism 5. During the adjustment, the supporting spring 607 will be compressed. After the adjustment, the connecting block 608 will enter the gear slot 602 again under the driving force of the supporting spring 607 to reset. The gear slot 602 locks the position of the connecting block 608 and locks the limiting mechanism 6 as a whole. When the adjusting mechanism 5 is in the state of being moved, the connecting shaft 510 is also unable to rotate, thereby fixing the diameter of the adjusting mechanism 5. The central axis of the connecting shaft 510 coincides with the central axis of the fixing ring 601, so that the connecting block 608 can enter the gear slot 602 for fixation after rotating at any angle, thereby ensuring the limiting effect of the adjusting mechanism 5 on the limiting mechanism 6. The top end of the supporting spring 607 is located below the sliding disk 606. Therefore, when the sliding disk 606 moves downward, the supporting spring 607 is compressed. When the sliding disk 606 moves, the limiting sleeve 605 moves relative to the fixing rod 604, thereby ensuring the stability of the limiting sleeve 605 when moving.

[0037] Reference Figure 7 and Figure 8The lifting mechanism 2 includes a supporting box 201 for supporting, a lifting block 203 is movably connected inside the supporting box 201, a partition plate 202 is fixedly connected inside the supporting box 201, the lifting block 203 is located above the partition plate 202, the top of the supporting box 201 is fixedly connected to a limit block 204, the side of the lifting block 203 is provided with a sliding groove adapted to the limit block 204, the bottom end of the lifting block 203 is threadedly connected to a threaded rod 205, the bottom end of the threaded rod 205 is fixedly connected to a first bevel gear 206, the side of the first bevel gear 206 is meshed with a second bevel gear 207, the side of the second bevel gear 207 away from the first bevel gear 206 is fixedly connected to a rotating wheel 208, the first bevel gear 206 and the second bevel gear 207 are both located below the partition plate 202.

[0038] In the embodiment of the present application, after the diameter of the adjusting mechanism 5 changes, the height of the adjusting mechanism 5 is adjusted at this time to avoid that when the adjusting mechanism 5 is large, if the angle of the adjusting mechanism 5 is adjusted, it will contact and be damaged with the fixed base 1. It can also avoid that when the adjusting mechanism 5 is small, if the height of the adjusting mechanism 5 is high and the overall size is large, there is a situation where it cannot be installed. After the present application rotates the rotating wheel 208, the threaded rod 205 rotates. At this time, the lifting block 203 can move in the up and down directions, thereby adjusting the position of the rotating shaft 3 in the lifting block 203. When the lifting block 203 moves, the limit block 204 slides in the lifting block 203 to ensure the stability of the movement. The partition plate 202 is used to separate the lifting block 203 from the second bevel tooth 207 at the bottom to avoid the lifting block 203 from contacting the second bevel tooth 207 when moving downward, thereby causing damage to the second bevel tooth 207.

[0039] The working principle of the present invention is as follows: when the coil needs to be wound, the diameter of the adjusting mechanism 5 is determined according to the diameter of the coil and the power transmission environment. After the diameter of the adjusting mechanism 5 is determined, the rotating wheel 208 is rotated. When the rotating wheel 208 rotates, the first bevel gear 206 is driven to rotate through the second bevel gear 207. When the first bevel gear 206 rotates, the threaded rod 205 above is driven to rotate. The threaded rod 205 rotates to make the lifting block 203 move up and down. When the lifting block 203 moves up and down, the height of the adjusting mechanism 5 is adjusted through the rotating shaft 3, so that the adjusting mechanism 5 moves to a suitable height.

[0040] When the adjustment mechanism 5 moves to a suitable height, the toggle rod 609 is pulled toward the fixed cylinder 603, and the toggle rod 609 is pulled out of the gear slot 602. When the toggle rod 609 moves, it drives the sliding plate 606 to move downward through the connecting block 608. When the sliding plate 606 moves downward, it compresses the supporting spring 607. When the toggle rod 609 is removed from the gear slot 602, the toggle rod 609 rotates around the connecting shaft 510, and the connecting shaft 510 itself rotates. The output shaft 509 drives the output gear 508 to rotate. When the output gear 508 rotates, it drives the gear ring 507 to rotate in the outer fixed ring 503, so that the output gear 508 and the five driven gears 511 rotate synchronously. When the output gear 508 and the driven gear 511 rotate, they drive the six moving racks 504 to move. When the moving racks 504 move, they drive the forming groove disc 505 to move. At this time, the diameter of the groove disc composed of the six forming groove discs 505 changes, so that the diameter of the coil can be adjusted.

[0041] After the diameter of the coil is adjusted, the toggle rod 609 is released. After the toggle rod 609 is released, the support spring 607 is reset. When the support spring 607 is reset, the connecting block 608 is moved away from the connecting shaft 510 through the sliding plate 606. After the toggle rod 609 moves, it is clamped into the gear clamping groove 602 again. The gear clamping groove 602 limits the position of the toggle rod 609. At this time, the connecting shaft 510 cannot rotate, ensuring that the diameter of the adjustment mechanism 5 does not change.

[0042] After the diameter of the adjusting mechanism 5 is fixed, the rotating shaft 3 is driven to rotate by the rotating disk 4. When the rotating shaft 3 rotates, the adjusting mechanism 5 is driven to rotate. After the adjusting mechanism 5 rotates, the coil is wound to form a magnetic resonance coil of a preset size.

[0043] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0044] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A magnetic resonance coil device for wireless power transmission, comprising a fixed base (1), characterized in that: Both sides of the top of the fixed base (1) are fixedly connected to a lifting mechanism (2); a rotating shaft (3) is movably connected inside the lifting mechanism (2); an adjusting mechanism (5) is fixedly connected to the side of the rotating shaft (3); a limiting mechanism (6) is fixedly connected to the side of the adjusting mechanism (5); a rotating disk (4) is fixedly connected to the side of the rotating shaft (3); the adjusting mechanism (5) comprises a connecting circular plate (501) fixedly connected to the rotating shaft (3); an outer fixing ring (503) is fixedly connected to the side of the connecting circular plate (501); and an inner fixing ring (502) is provided inside the outer fixing ring (503). The side surface of the connecting circular plate (501) is fixedly connected to the side surface of the inner fixing ring (502); the inner fixing ring (502) and the outer fixing ring (503) are both movably connected with a movable rack (504); the outer side of the movable rack (504) is fixedly connected with a shaped groove plate (505); the side surface of the movable rack (504) is meshed with an output gear (508); the bottom end of the output gear (508) is meshed with a gear ring (507); the inner side of the gear ring (507) is meshed with a driven gear (511); and movable avoidance holes are provided in the inner fixing ring (502) and the outer fixing ring (503).

2. The magnetic resonance coil device for wireless power transmission according to claim 1, characterized in that: The number of the driven gears (511) is five, and the five driven gears (511) have the same structure as the output gear (508). The driven gears (511) and the output gears (508) are distributed at equal angles in the outer fixed ring (503), and the side surfaces of the output gears (508) are all meshed with movable racks (504), and the outer sides of the six movable racks (504) are all connected to molded groove plates (505).

3. The magnetic resonance coil device for wireless power transmission according to claim 2, characterized in that: The gear ring (507) rotates inside the outer fixed ring (503); the output gear (508) drives five driven gears (511) to rotate synchronously via the gear ring (507); an inner limit ring (506) is fixedly connected to the inner side of the movable rack (504); connecting circular plates (501) are fixedly connected to both sides of the inner fixed ring (502) and the outer fixed ring (503); and when the inner limit ring (506) moves to the innermost side, it does not contact the rotating shaft (3).

4. The magnetic resonance coil device for wireless power transmission according to claim 3, characterized in that: An output shaft (509) is fixedly connected inside the output gear (508), a connecting shaft (510) is fixedly connected to the side of the output shaft (509) away from the output gear (508), the top end of the connecting shaft (510) is fixedly connected to the bottom end of the limiting mechanism (6), the gear ring (507) and the movable rack (504) are located on both sides of the outer fixed ring (503), and the gear ring (507) and the movable rack (504) do not contact each other during operation.

5. The magnetic resonance coil device for wireless power transmission according to claim 1, characterized in that: The limiting mechanism (6) comprises a fixing cylinder (603) fixedly connected to the connecting shaft (510); a fixing rod (604) is fixedly connected to the bottom end of the outer fixing ring (503); a limiting sleeve (605) is movably connected to the top end of the fixing rod (604); a limiting hole for the fixing rod (604) to move is provided inside the limiting sleeve (605); a sliding disk (606) is fixedly connected to the top end of the limiting sleeve (605); a connecting block (608) is fixedly connected to the top end of the sliding disk (606); and a toggle rod (609) is fixedly connected to the side of the connecting block (608) away from the connecting circular plate (501).

6. The magnetic resonance coil device for wireless power transmission according to claim 5, characterized in that: The fixing rod (604) and the side surface of the limiting sleeve (605) are sleeved with a supporting spring (607), the supporting spring (607) is located in the fixing cylinder (603), and a through groove matched with a connecting block (608) is provided at the top of the fixing cylinder (603), a fixing ring (601) is provided on the side surface of the fixing cylinder (603), the side surface of the fixing ring (601) is fixedly connected to the side surface of the connecting circular plate (501), a gear slot (602) is provided inside the fixing ring (601), the connecting block (608) is located in the gear slot (602), and the central axis of the connecting shaft (510) coincides with the central axis of the fixing ring (601).

7. The magnetic resonance coil device for wireless power transmission according to claim 1, characterized in that: The lifting mechanism (2) comprises a supporting box (201) for supporting, a lifting block (203) is movably connected inside the supporting box (201), a partition plate (202) is fixedly connected inside the supporting box (201), the lifting block (203) is located above the partition plate (202), a limit block (204) is fixedly connected to the top end of the supporting box (201), and a sliding groove matching the limit block (204) is provided on the side of the lifting block (203).

8. The magnetic resonance coil device for wireless power transmission according to claim 7, characterized in that: The bottom end of the lifting block (203) is threadedly connected to a threaded rod (205), the bottom end of the threaded rod (205) is fixedly connected to a first bevel tooth (206), the side of the first bevel tooth (206) is meshed with a second bevel tooth (207), the side of the second bevel tooth (207) away from the first bevel tooth (206) is fixedly connected to a rotating wheel (208), and the first bevel tooth (206) and the second bevel tooth (207) are both located below the partition plate (202).

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