Rotary power connection structure

Abstract

The utility model relates to a rotary power connection structure in the field of power connection structures, which comprises a power connection piece, a PCB (printed circuit board), a rotary seat and a fixed seat, the power connection piece comprises a first power connection piece and a second power connection piece, the PCB is connected with a first power connection assembly, the first power connection assembly comprises a planar large electrode ring, a planar small electrode ring, a first U-shaped power connection sheet and a second U-shaped power connection sheet, and the first U-shaped power connection sheet is connected with the fixed seat. In the rotating process of the rotating seat, a first power connection piece, a second power connection piece, a planar large electrode ring and a planar small electrode ring are driven to rotate synchronously, in the rotating process of the rotating seat, under the continuous action of elastic force, a first U-shaped power connection piece and the planar large electrode ring are continuously kept in a conductive state, and a second U-shaped power connection piece and the planar small electrode ring are continuously kept in a conductive state; and it is ensured that the first power connection piece and the second power connection piece can continuously supply power in the rotating process, and the sliding power connection ends of the first U-shaped power connection piece and the second U-shaped power connection piece keep good conductivity with the large planar electrode ring and the small planar electrode ring under the continuous action of elastic force.

Description

Technical Field

[0001] The utility model relates to the field of power connection structures, in particular to a rotating power connection structure. Background Art

[0002] In the prior art, some small electrical appliances need to realize the rotation function, and the motor drives the rotating parts to realize the rotation, and the rotating process also needs to keep the rotated parts in the power-on state. For example, the more common electric curling iron, but not limited to electric curling irons, usually has a female power connection terminal at one end of the handle, and a male power connection terminal is set at one end of the curling iron. The male power connection terminal is inserted into the female power connection terminal to directly realize the matching connection. After the connection and installation are completed, the female power connection terminal and the male power connection terminal can be electrically connected through the internal power connection metal sheet, so that the power supply located in the handle can supply power to the heating components located in the curling iron. At the same time, in order to realize the curling action, the handle needs to drive the entire female power connection terminal and the curling iron to realize rotation through the motor. Therefore, a structure must be set inside the handle to ensure that the female power connection terminal is always in the power-on state during the rotation of the female power connection terminal.

[0003] In the prior art, an arc surface electrode ring and a plane electrode ring are usually used to achieve electrical connection. The arc surface electrode ring itself has an arc surface protrusion, and the arc surface protrusion has a certain elasticity. When the arc surface protrusion contacts the plane electrode ring, under the elastic force of the arc surface protrusion itself, when the plane electrode ring rotates, the arc surface protrusion will always be close to the end face of the plane electrode ring, thereby achieving the purpose of being in a power-on state during the rotation process. This structure using an arc surface protrusion has been found to have the following defects during long-term use: on the one hand, due to the overall space limitation, the arc surface structure of the arc surface protrusion is set to be thin, so the elastic force it generates is limited. When the designed close elastic force is insufficient, poor contact is likely to occur. In addition, since the elastic force is generated by the elasticity of the arc surface protrusion through the arc surface structure itself, the elastic force will gradually decrease during long-term use, and poor contact is also likely to occur, thereby affecting the service life of small appliances. Utility Model Content

[0004] The purpose of the utility model is to solve the above defects and provide a rotating power connection structure. During the rotation of the rotating seat, under the continuous action of the elastic force, the first U-shaped power connection piece and the large planar electrode ring continue to maintain a conductive state, and the second U-shaped power connection piece and the small planar electrode ring continue to maintain a conductive state, thereby ensuring that the first power connection piece and the second power connection piece can continuously supply power during the rotation process, solving the technical problem of power failure caused by poor contact of the metal sheet during the rotation process of the rotating seat in the prior art.

[0005] The purpose of the utility model is achieved by the following methods:

[0006] The rotating power connection structure comprises a power connection piece, a PCB board, a rotating seat and a fixed seat, the rotating seat can rotate relatively along the fixed seat, the power connection piece is welded to the PCB board, the power connection piece comprises a first power connection piece and a second power connection piece, the PCB board is connected with a first power connection component, the first power connection component comprises a planar large electrode ring, a planar small electrode ring, a first U-shaped power connection piece and a second U-shaped power connection piece, the planar large electrode ring and the planar small electrode ring are fixedly installed in the rotating seat in an insulated manner, one end of the planar large electrode ring is provided with a first conductive contact pin extending to the PCB board and electrically connected to the first power connection piece, one end of the planar small electrode ring is provided with a first conductive contact pin extending to the PCB board and electrically connected to the second power connection piece The electrically connected second conductive contact pin, the ends of the first U-shaped contact piece and the second U-shaped contact piece away from the PCB board are both first fixed contact ends, the first U-shaped contact piece and the second U-shaped contact piece are movably installed in the fixing seat in an insulated manner, and the ends of the first U-shaped contact piece and the second U-shaped contact piece close to the PCB board are both sliding contact ends, the sliding contact end of the first U-shaped contact piece is continuously pressed against one end face of the planar large electrode ring under the action of elastic force, and can slide in a circle along one end face of the planar large electrode ring, and the sliding contact end of the second U-shaped contact piece is continuously pressed against one end face of the planar small electrode ring under the action of elastic force, and can slide in a circle along one end face of the planar small electrode ring.

[0007] Furthermore, the fixing base is provided with a first positioning groove and a second positioning groove with an opening toward the PCB board at one end thereof, a first spring is provided in the first positioning groove, the first spring is squeezed between the first positioning groove and the first U-shaped electrical connection piece, the first spring is used to provide the first U-shaped electrical connection piece with an elastic force to continuously adhere to the planar large electrode ring, a second spring is provided in the second positioning groove, the second spring is squeezed between the second positioning groove and the second U-shaped electrical connection piece, the second spring is used to provide the second U-shaped electrical connection piece with an elastic force to continuously adhere to the planar small electrode ring.

[0008] Furthermore, the end of the fixing seat close to the PCB board is provided with a first guide groove for guiding the first U-shaped electrical contact piece and a second guide groove for guiding the second U-shaped electrical contact piece. The end of the first U-shaped electrical contact piece away from the sliding electrical contact end can be movably inserted into the first guide groove, and the first guide groove plays a guiding and limiting role to ensure the stability of the first U-shaped electrical contact piece. The end of the second U-shaped electrical contact piece away from the sliding electrical contact end can be movably inserted into the second guide groove, and the second guide groove plays a guiding and limiting role to ensure the stability of the second U-shaped electrical contact piece.

[0009] Furthermore, the electrical connector also includes a third electrical connector and a fourth electrical connector, the PCB board is also connected to a second electrical connector assembly, the second electrical connector assembly includes a first electrode ring, a second electrode ring, a first contact sheet and a second contact sheet, the first electrode ring and the second electrode ring are insulated from each other and fixedly installed on an end of the rotating base away from the PCB board, one end of the first electrode ring is provided with a third conductive contact pin extending to the PCB board and electrically connected to the third electrical connector, one end of the second electrode ring is provided with a fourth conductive contact pin extending to the PCB board and electrically connected to the fourth electrical connector, the first contact sheet and the second contact sheet are both installed on the fixed base, the first contact sheet continuously clings to the periphery of the first electrode ring and can slide close to the periphery of the first electrode ring, the second contact sheet continuously clings to the periphery of the second electrode ring and can slide close to the periphery of the second electrode ring, and the ends of the first contact sheet and the second contact sheet away from the rotating base are both second fixed electrical terminals.

[0010] Furthermore, one end of the first contact piece and the second contact piece close to the rotating seat is an arc-shaped elastic structure. The arc-shaped elastic structure has good elastic force, and setting it as an arc-shaped elastic structure can increase the tightness of the contact.

[0011] Furthermore, an electrical connection seat is fixedly mounted on one end of the rotating seat away from the fixed seat, and an inner cavity for mounting a PCB board is formed between the electrical connection seat and the rotating seat.

[0012] Furthermore, the outer end surface of the power connection seat is provided with an inwardly recessed guide groove and a docking through hole corresponding to the position of the power connection. The guide groove is used for rapid docking with the power connection male terminal, thereby increasing the convenience and stability of docking.

[0013] Furthermore, the edge of one end of the power connection seat close to the rotating seat is provided with more than two latches, and the edge of one end of the rotating seat close to the power connection seat is provided with a slot for mating with the latches. The docking of the latches and the slots facilitates quick assembly without the need for additional fixing structures such as screws, thereby increasing the convenience of installation and improving assembly efficiency.

[0014] The beneficial effects of the utility model are as follows: the rotation process of the rotating seat will drive the first power connection piece, the second power connection piece, the large planar electrode ring and the small planar electrode ring to rotate synchronously; a movable first U-shaped power connection piece and a second U-shaped power connection piece are arranged in the fixed seat; the first U-shaped power connection piece is continuously pressed against one end face of the large planar electrode ring under the action of elastic force, and can slide in a circle along one end face of the large planar electrode ring; the second U-shaped power connection piece is continuously pressed against one end face of the small planar electrode ring under the action of elastic force, and can slide in a circle along one end face of the small planar electrode ring; during the rotation process of the rotating seat, under the continuous action of elastic force, the first U-shaped power connection piece and the large planar electrode ring are continuously kept in a conductive state; the second U-shaped power connection piece is continuously pressed against one end face of the small planar electrode ring under the action of elastic force; and the second U-shaped power connection piece is continuously pressed against one end face of the small planar electrode ring under the action of elastic force. The power contact piece and the planar small electrode ring are continuously kept in a conductive state, ensuring that the first power contact piece and the second power contact piece can continuously supply power during the rotation process. The sliding power contact ends of the first U-shaped power contact piece and the second U-shaped power contact piece respectively maintain good conductivity with the planar large electrode ring and the planar small electrode ring under the continuous action of the elastic force. At the same time, the first U-shaped power contact piece and the second U-shaped power contact piece can be installed in the fixed seat to maintain good stability. The rotating seat can also maintain the best contact and conductivity during the long-term continuous rotation process. Under the action of the external elastic force, the elastic force can be ensured to remain unchanged even in long-term use, thereby increasing the service life and ensuring that the first power contact piece and the second power contact piece are continuously in a power-connected state when the power is on. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural diagram of a rotating power connection structure of a first embodiment of the utility model from a top view angle;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the rotating power connection structure of the first embodiment of the utility model from a bottom-up perspective;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of a fixed seat in a rotating power connection structure of a first embodiment of the utility model;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of a rotating seat in a rotating power connection structure of a first embodiment of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the rotating seat in the rotating power connection structure of the first embodiment of the utility model;

[0020] Figure 6 This is a schematic diagram of the three-dimensional structure of the rotating power connection structure of the second embodiment of the utility model from a top view angle;

[0021] Figure 7 This is a partial structural exploded schematic diagram of a rotating power connection structure from a top view of a second embodiment of the utility model;

[0022] Figure 8This is a partial structural exploded schematic diagram of another angle of the rotating power connection structure of the second embodiment of the utility model;

[0023] Fig. 9 It is a three-dimensional structural schematic diagram of a rotating seat in a rotating power connection structure of the second embodiment of the utility model;

[0024] Fig.10 This is a schematic diagram of the structural decomposition of the rotating seat in the rotating power connection structure of the second embodiment of the utility model;

[0025] In the figure, 1-electrical connection part seat, 2-PCB board, 3-rotating seat, 4-fixed seat, 5-grip, 6-slot, 7-guide groove, 8-docking through hole, 9-first electric connection part, 10-second electric connection part, 11-third electric connection part, 12-fourth electric connection part, 13-planar large electrode ring, 14-planar small electrode ring, 15-first U-shaped electric connection piece, 16-second U-shaped electric connection piece, 17-first spring, 18-second spring, 19-first electrode ring, 20-second electrode ring, 21-first contact piece, 22-second contact piece. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] Embodiment 1

[0028] In this embodiment, refer to Figure 1-Figure 5 The specific implementation of the rotary power connection structure includes a power connection seat 1, a power connection, a PCB board 2, a rotating seat 3 and a fixed seat 4. The PCB board 2 is installed in the inner cavity formed between the power connection seat 1 and the rotating seat 3. The power connection seat 1 is provided with two clamping teeth 5 at one end edge close to the rotating seat 3. The rotating seat 3 is provided with two clamping grooves 6 for matching and clamping the clamping teeth 5 at one end edge close to the power connection seat 1. The docking of the clamping teeth 5 and the clamping grooves 6 facilitates quick assembly, and there is no need to set up additional fixing structures such as screws, which increases the convenience of installation and improves the assembly efficiency. After the power connection seat 1 is installed, the power connection seat 1, the power connection and the PCB board 2 are assembled into one with the rotating seat 3. When the rotating seat 3 rotates, it synchronously drives the power connection seat 1, the power connection and the PCB board 2.

[0029] In addition, two inwardly recessed guide grooves 7 and docking through holes 8 corresponding to the positions of the two electrical connectors are left on the outer end surface of the electrical connector seat 1. The rotary electrical connection structure of this embodiment is applied to the docking of the electrical male terminal and the electrical female terminal. For example, the rotary electrical connection structure of this embodiment is the electrical female terminal. When the electrical male terminal and the electrical female terminal are docked, the male pin of the electrical male terminal is inserted along the docking through hole 8 and inserted until it is electrically connected to the electrical connector. The end surface of the electrical male terminal is provided with a guide column for mating and inserting into the guide groove 7. The guide groove 7 is used for rapid docking with the guide column of the electrical male terminal, which increases the convenience and stability of docking.

[0030] The rotating seat 3 and the electrical connection seat 1 can rotate relative to each other along the fixed seat 4. Specifically, the rotating seat 3 is driven by a motor, and the motor is connected to the rotating seat 3 through a rotating shaft. When the rotating shaft of the motor rotates, the rotating seat 3 is synchronously driven to rotate. The electrical connection is welded to the PCB board 2. The PCB board 2 is circular, and the opening of the electrical connection faces the corresponding male pin. The electrical connection includes a first electrical connection 9 and a second electrical connection 10, and the corresponding male pins also include a first male pin and a second male pin.

[0031] like Figure 4 and Figure 5 As shown, the PCB board 2 is connected to a first power connection component, which includes a large planar electrode ring 13, a small planar electrode ring 14, a first U-shaped power connection piece 15 and a second U-shaped power connection piece 16. The large planar electrode ring 13 and the small planar electrode ring 14 are fixedly installed in the rotating seat 3 in an insulated manner. One end of the large planar electrode ring 13 is provided with a first conductive contact pin extending to the PCB board 2 and electrically connected to the first power connection piece 9, and one end of the small planar electrode ring 14 is provided with a second conductive contact pin extending to the PCB board 2 and electrically connected to the second power connection piece 10.

[0032] like Figure 4 and Figure 5 As shown, the ends of the first U-shaped contact piece 15 and the second U-shaped contact piece 16 away from the PCB board 2 are both first fixed contact terminals, and the first fixed contact terminals are used to be electrically connected to the main control circuit board of the electrical appliance, and are powered by the power supply of the electrical appliance. The first U-shaped contact piece 15 and the second U-shaped contact piece 16 are movably installed in the fixing seat 4 in an insulated manner from each other, and the ends of the first U-shaped contact piece 15 and the second U-shaped contact piece 16 close to the PCB board 2 are both sliding contact terminals, and the sliding contact terminal of the first U-shaped contact piece 15 is continuously pressed against one end face of the planar large electrode ring 13 under the action of elastic force, and can slide in a circle along one end face of the planar large electrode ring 13, and the sliding contact terminal of the second U-shaped contact piece 16 is continuously pressed against one end face of the planar small electrode ring 14 under the action of elastic force, and can slide in a circle along one end face of the planar small electrode ring 14.

[0033] like Figure 3As shown, specifically, the end of the fixing seat 4 close to the PCB board 2 is provided with a first positioning groove and a second positioning groove with an opening facing the PCB board 2, a first spring 17 is provided in the first positioning groove, the first spring 17 is squeezed between the first positioning groove and the first U-shaped electric contact piece 15, and the first spring 17 is used to provide the first U-shaped electric contact piece 15 with an elastic force to continuously stick to the large planar electrode ring 13, a second spring 18 is provided in the second positioning groove, the second spring 18 is squeezed between the second positioning groove and the second U-shaped electric contact piece 16, and the second spring 18 is used to provide the second U-shaped electric contact piece 16 with an elastic force to continuously stick to the small planar electrode ring 14. The end of the fixing seat 4 close to the PCB board 2 is provided with a first guide groove 7 for guiding the first U-shaped electric contact piece 15 and a second guide groove 7 for guiding the second U-shaped electric contact piece 16. One end of the first U-shaped power contact piece 15 away from the sliding power contact end can be movably inserted into the first guide groove 7, and the first guide groove 7 plays a guiding and limiting role to ensure the stability of the first U-shaped power contact piece 15. One end of the second U-shaped power contact piece 16 away from the sliding power contact end can be movably inserted into the second guide groove 7, and the second guide groove 7 plays a guiding and limiting role to ensure the stability of the second U-shaped power contact piece 16.

[0034] Embodiment 2

[0035] In this embodiment, refer to Figure 6-Figure 10 The difference between the specifically implemented rotating power connection structure and the first embodiment is that a third power connection piece 11 and a fourth power connection piece 12 are further provided, and the PCB board 2 is also connected to a second power connection component, the second power connection component includes a first electrode ring 19, a second electrode ring 20, a first contact piece 21 and a second contact piece 22, the first electrode ring 19 and the second electrode ring 20 are fixedly installed on the end of the rotating seat 3 away from the power connection piece seat 1 in an insulated manner, and the end of the rotating seat 3 away from the power connection piece seat 1 is a cylindrical tubular structure, one end of the first electrode ring 19 is provided with a third conductive contact pin extending to the PCB board 2 and electrically connected to the third power connection piece 11, and the second electrode ring One end of 20 is provided with a fourth conductive contact pin extending to the PCB board 2 and electrically connected to the fourth electrical connector 12. The first contact piece 21 and the second contact piece 22 are both installed on the fixed seat 4. The first contact piece 21 is continuously pressed against the periphery of the first electrode ring 19 and can slide against the periphery of the first electrode ring 19. The second contact piece 22 is continuously pressed against the periphery of the second electrode ring 20 and can slide against the periphery of the second electrode ring 20. The ends of the first contact piece 21 and the second contact piece 22 away from the rotating seat 3 are both second fixed electrical terminals, which are used to be electrically connected to the main control circuit board of the electrical appliance and powered by the power supply of the electrical appliance. The ends of the first contact piece 21 and the second contact piece 22 close to the rotating seat 3 are arc-shaped elastic structures. The arc-shaped elastic structure has good elastic force, and setting it as an arc-shaped elastic structure can increase the tightness of the contact.

[0036] The rotating seat 3 of the present embodiment is driven by a motor, and the motor is connected to the rotating seat 3 through a rotating shaft. When the rotating shaft of the motor rotates, the rotating seat 3 is synchronously driven to rotate. Therefore, the rotating seat 3 rotates and synchronously drives the first power connection member 9, the second power connection member 10, the third power connection member 11, the fourth power connection member 12, the planar large electrode ring 13, the planar small electrode ring 14, the first electrode ring 19 and the second electrode ring 20. At this time, the first U-shaped power connection piece 15, the second U-shaped power connection piece 16, the first contact piece 21 and the second contact piece 22 are all in a relatively static state with the fixed seat 4. During the rotation of the planar large electrode ring 13 and the planar small electrode ring 14, the first U-shaped power connection piece 15 continues to be close to the planar large electrode ring under the elastic force of the first spring 17. The first electrode ring 19 and the second electrode ring 20 are rotated in a manner that the first contact piece 21 is continuously pressed against the periphery of the first electrode ring 19 and can slide against the periphery of the first electrode ring 19, and the second contact piece 22 is continuously pressed against the periphery of the second electrode ring 20 and can slide against the periphery of the second electrode ring 20, ensuring that the first power connection piece 9, the second power connection piece 10, the third power connection piece 11 and the fourth power connection piece 12 can continuously supply power during the rotation process. The rotating power connection structure of this embodiment is not limited to electric curling irons, but can also be applied to other small household appliances. As long as the structure needs to supply power to the rotating parts, it belongs to the structure and application scope of the utility model.

[0037] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as the protection scope of the present invention.

Claims

1. A rotating power connection structure, comprising a power connection member, a PCB board, a rotating seat and a fixed seat, wherein the rotating seat can rotate relatively along the fixed seat, the power connection member is welded to the PCB board, the power connection member comprises a first power connection member and a second power connection member, and the PCB board is connected with a first power connection assembly, characterized in that: The first power connection component comprises a large flat electrode ring, a small flat electrode ring, a first U-shaped power connection piece and a second U-shaped power connection piece. The large flat electrode ring and the small flat electrode ring are fixedly installed in a rotating seat in an insulated manner. One end of the large flat electrode ring is provided with a first conductive contact pin extending to the PCB board and electrically connected to the first power connection piece. One end of the small flat electrode ring is provided with a second conductive contact pin extending to the PCB board and electrically connected to the second power connection piece. The ends of the first U-shaped power connection piece and the second U-shaped power connection piece away from the PCB board are both first fixed The first U-shaped electrical contact piece and the second U-shaped electrical contact piece are movably installed in the fixing seat in an insulated manner. One end of the first U-shaped electrical contact piece and the second U-shaped electrical contact piece close to the PCB board are both sliding electrical contact pieces. The sliding electrical contact piece of the first U-shaped electrical contact piece is continuously pressed against one end face of the planar large electrode ring under the action of elastic force, and can slide in a circle along one end face of the planar large electrode ring. The sliding electrical contact piece of the second U-shaped electrical contact piece is continuously pressed against one end face of the planar small electrode ring under the action of elastic force, and can slide in a circle along one end face of the planar small electrode ring.

2. The rotating power connection structure according to claim 1, characterized in that: The fixing base is provided with a first positioning groove and a second positioning groove with an opening toward the PCB board at one end thereof, a first spring is provided in the first positioning groove, the first spring is squeezed between the first positioning groove and the first U-shaped electrical connection piece, and the first spring is used to provide the first U-shaped electrical connection piece with an elastic force that continuously presses against the planar large electrode ring, a second spring is provided in the second positioning groove, the second spring is squeezed between the second positioning groove and the second U-shaped electrical connection piece, and the second spring is used to provide the second U-shaped electrical connection piece with an elastic force that continuously presses against the planar small electrode ring.

3. The rotating power connection structure according to claim 1, characterized in that: The fixing seat is provided with a first guide groove for guiding the first U-shaped electrical connection piece and a second guide groove for guiding the second U-shaped electrical connection piece at one end close to the PCB board.

4. The rotating power connection structure according to any one of claims 1 to 3, characterized in that: The electrical connector also includes a third electrical connector and a fourth electrical connector. The PCB board is also connected to a second electrical connector assembly. The second electrical connector assembly includes a first electrode ring, a second electrode ring, a first contact sheet and a second contact sheet. The first electrode ring and the second electrode ring are insulated from each other and fixedly installed on an end of the rotating base away from the PCB board. One end of the first electrode ring is provided with a third conductive contact pin extending to the PCB board and electrically connected to the third electrical connector. One end of the second electrode ring is provided with a fourth conductive contact pin extending to the PCB board and electrically connected to the fourth electrical connector. The first contact sheet and the second contact sheet are both installed on the fixed base. The first contact sheet is continuously pressed against the outer periphery of the first electrode ring and can slide against the outer periphery of the first electrode ring. The second contact sheet is continuously pressed against the outer periphery of the second electrode ring and can slide against the outer periphery of the second electrode ring. The ends of the first contact sheet and the second contact sheet away from the rotating base are both second fixed electrical terminals.

5. The rotating power connection structure according to claim 4, characterized in that: One end of the first contact piece and the second contact piece close to the rotating seat is an arc-shaped elastic structure.

6. The rotating power connection structure according to any one of claims 1 to 3, characterized in that: An electric connection seat is fixedly mounted on one end of the rotating seat away from the fixed seat, and an inner cavity for mounting a PCB board is formed between the electric connection seat and the rotating seat.

7. The rotating power connection structure according to claim 6, characterized in that: The outer end surface of the power connection piece seat is provided with an inwardly recessed guide groove and a docking through hole corresponding to the position of the power connection piece.

8. The rotating power connection structure according to claim 6, characterized in that: The edge of one end of the power connection seat close to the rotating seat is provided with more than two locking teeth, and the edge of one end of the rotating seat close to the power connection seat is provided with a locking groove for matching and locking the locking teeth.

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