A dynamic sealing anti-entanglement cable connection device for water area cleaning machine

Abstract

The present invention discloses a dynamically sealed, tangle-resistant cable connection device for a water area cleaning machine, comprising: a rotatably mounted plug unit and a socket unit; the plug unit comprises: a composite housing structure; a first coil; a first sealing body that seals a bottom sealing cavity with perfusion; the socket unit comprises: a cylindrical housing; a second coil; a second sealing body that seals a cylindrical cavity with perfusion; a connecting sleeve; the radial protrusion and the limiting groove form a rotating pair for relative rotation; there are no direct electrical connection elements between the plug unit and the socket unit, the contact portion between the radial protrusion and the limiting groove allows the presence and flow of a water medium, and the alternating magnetic field penetrates the first and second sealing bodies to achieve energy transmission. The present invention provides a pluggable, tangle-resistant, corrosion-resistant, and maintenance-free device, making it particularly suitable for long-term, high-frequency use of underwater equipment.

Description

Technical Field

[0001] The present invention belongs to the technical field of water area cleaning, and in particular relates to a dynamic sealing anti-entanglement cable connection device for a water area cleaning machine. Background Art

[0002] A water area cleaning machine is a device used to automatically or semi-automatically clean the bottom, side walls and water surface of a swimming pool. It can efficiently remove impurities such as sediment, leaves, algae, and keep the water clean.

[0003] Water cleaning machines usually require waterproof cable connectors to ensure electrical safety and equipment reliability during underwater operations. For reasons of safety, durability, and ease of use, cable connectors for water cleaning machines need to be able to be frequently plugged and unplugged and prevent entanglement. In terms of pluggability, frequent plugging and unplugging may cause wear of the waterproof sealing ring, and water seepage or poor contact may occur after long-term use. Some quick-release connectors are convenient but have complex structures, which increases the risk of failure. In terms of anti-entanglement, traditional straight-plug connectors lack a rotation design. When the cleaning machine is working, the cable easily kinks, causing the connector to bear additional stress and accelerate the aging of the internal circuit. Although some new models use universal rotation or low-resistance shaft designs, they may still experience rotation jamming or reduced sealing under high-intensity use. If the cable connector lacks a rotation mechanism or anti-torsion structure, the cable is prone to twisting and tangling, which not only increases the motor load and shortens its life, but may also pull on the connector, causing a short circuit or falling off.

[0004] Therefore, how to solve the above problems and provide a waterproof cable connector that is both effectively waterproof, easy to plug and unplug, and anti-entanglement for use in water area cleaning machines is a technical problem that needs to be urgently solved by those skilled in the art. Summary of the Invention

[0005] The object of the present invention is to provide a dynamic sealing anti-entanglement cable connection device for a water area cleaning machine in order to solve the problems in the prior art.

[0006] To this end, the above-mentioned purpose of the present invention is achieved through the following technical solutions:

[0007] A dynamic sealing anti-entanglement cable connection device for a water area cleaning machine, comprising:

[0008] swivel-mounted plug and socket units;

[0009] The plug unit comprises:

[0010] The composite shell structure consists of an inner shell and a coaxially sleeved outer shell, forming an annular cavity and a bottom sealed cavity;

[0011] A first coil, the conductor of which is spirally arranged around the outer wall of the inner shell in the annular cavity;

[0012] The first sealing body fills and seals the bottom sealing cavity;

[0013] The socket unit comprises:

[0014] A cylindrical shell with a cylindrical cavity formed inside;

[0015] a second coil, the conductor of which is spirally arranged around the inner wall of the cylindrical cavity;

[0016] The second sealing body fills and seals the cylindrical cavity;

[0017] The outer wall of the inner shell is provided with radial protrusions;

[0018] an external threaded portion of an outer wall of the cylindrical housing;

[0019] The inner wall of the connecting sleeve is provided with a thread that matches the threaded portion, and a limiting groove is formed at the end;

[0020] The radial protrusion and the limiting groove form a rotating pair for relative rotation;

[0021] There is no direct electrical connection element between the plug unit and the socket unit, the contact portion between the radial protrusion and the limiting groove allows the presence and flow of water medium, and the alternating magnetic field penetrates the first sealing body and the second sealing body to realize energy transmission.

[0022] While adopting the above technical solutions, the present invention may also adopt or combine the following technical solutions:

[0023] As a preferred technical solution of the present invention: the first coil and the second coil are coupled through an alternating magnetic field to achieve contactless transmission of electric energy, and the current transmission direction is reversible;

[0024] When current is transferred from the second coil to the first coil:

[0025] The circuit board connected to the second coil converts the input current into an AC signal through a high-frequency amplifier and applies it to the second coil, thereby exciting an alternating magnetic field.

[0026] The first coil generates an induced current in the alternating magnetic field, which is converted into a DC output by the rectifier circuit connected thereto;

[0027] When current is transferred from the first coil to the second coil:

[0028] The circuit board connected to the first coil converts the input current into an AC signal through a high-frequency amplifier and applies it to the first coil to excite an alternating magnetic field;

[0029] The second coil generates an induced current in the alternating magnetic field, which is converted into a direct current output by the rectifier circuit connected thereto.

[0030] As a preferred technical solution of the present invention: the first coil and the second coil are high-frequency coils;

[0031] The first coil is tightly wound in a spiral structure on the outer wall of the inner shell;

[0032] The second coil is helically wound coaxially with the first coil on the inner wall of the cylindrical cavity, forming a coaxial magnetic field coupling with the first coil. As a preferred technical solution of the present invention: a first fixed seal is formed by epoxy resin at the interface between the wire output end of the first coil and the first sealing body;

[0033] A second fixed seal is formed at the interface between the wire output end of the second coil and the second sealing body by epoxy resin.

[0034] As a preferred technical solution of the present invention: the plug unit and the socket unit are rotationally connected via threads.

[0035] As a preferred technical solution of the present invention: the outside of the insulating layer is wrapped with an anti-bending layer.

[0036] As the preferred technical solution of the present invention:

[0037] The signal transmission assembly of the plug unit includes: a circuit board fixed to the bottom of the inner shell, with an integrated wireless transceiver; a signal line connected to the circuit board at one end, and extending to the outside at the other end through the first sealing body, with the through-section of the signal line and the first sealing body isolated by a third fixed seal; and an insulating layer covering the outside of the signal line at the other end;

[0038] The signal transmission component of the socket unit includes: a second circuit board fixed to the bottom of the cylindrical shell, with an integrated wireless transceiver; the second circuit board is connected to the head end of the second signal line through an internal signal line, and the tail end of the second signal line extends through the second sealing body to the outside, and the penetration section forms a fourth fixed seal, which is covered with an insulating layer second on the outside.

[0039] As a preferred technical solution of the present invention: the circuit board 1 and the circuit board 2 are both provided with a waterproof coating

[0040] Compared with the prior art, the dynamic sealing anti-entanglement cable connection device for a water area cleaning machine of the present invention has the following beneficial effects:

[0041] The dynamic sealed anti-entanglement cable connection device for the water area cleaning machine of the present invention adopts non-contact electromagnetic induction power supply, realizes power transmission through the magnetic field coupling of the plug unit containing the first coil and the socket unit containing the second coil, and uses wireless transmission to penetrate the sealing body to complete data interaction, completely eliminates exposed conductors, and solves the failure problem of traditional joints caused by electrolytic corrosion. At the same time, the innovative rotating sub-structure formed by the radial protrusion and the limiting groove allows the plug unit to rotate 360° continuously, solving the problem of entanglement. At the same time, it is convenient to cooperate with the open water flow design, which not only prevents cable entanglement, but also avoids pressure accumulation in the sealed cavity, and realizes long-term waterproofing under dynamic working conditions.

[0042] The plug unit and the socket unit in the present invention are rotatably installed, and the connecting sleeve adopts a cam-type limiter to ensure axial locking while achieving circumferential free rotation. Through the double helix structure of the plug unit, the socket unit and the connecting sleeve, the cable will not accumulate torque due to the movement of the cleaning machine, effectively eliminating twist and absorbing the torsional stress of the cable, preventing the wire core from breaking, extending the life of the motor and cable, and realizing dynamic anti-entanglement of the cable joint.

[0043] The present invention realizes a bidirectional wireless energy transmission module through the cooperation of the first coil and the second coil, which is adapted to the dual-mode requirements of the water area cleaning machine such as charging or power supply. The cleaning machine automatically charges when it docks at the base station. After being fully charged, there is no need to plug and unplug the physical connector for external power supply. It also supports multiple cleaning machines to be powered or charged in turn, which is convenient for promotion and application.

[0044] In this invention, the cable connector unit and socket unit are fixed together by a connecting sleeve, making the cable connector pluggable. It also allows the cable connector to rotate freely with the main unit during operation, automatically unwinding the cable. Furthermore, the fully enclosed magneto-electrical-photoelectrical transmission overcomes challenges such as conductor leakage and corrosion in water. In this invention, dual seals are poured to protect key components, while the water gap structure at the contact point balances pressure and fluid drainage, significantly improving the connector's reliability in the chlorine-containing / high-salt environment of swimming pools. The connector offers pluggable, anti-tangling, corrosion-resistant, and maintenance-free features, making it particularly suitable for long-term, high-frequency use of underwater equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a schematic structural diagram of a dynamic sealing anti-entanglement cable connection device for a water area cleaning machine according to the present invention;

[0046] Figure 2 This is a diagram showing the use of a dynamic sealing anti-entanglement cable connection device for a water area cleaning machine according to the present invention;

[0047] Figure 3 This is a cross-sectional view of a dynamic sealing anti-entanglement cable connection device for a water area cleaning machine according to the present invention;

[0048] Figure 4 This is a partial cross-sectional view of a dynamic sealing anti-entanglement cable connection device for a water area cleaning machine of the present invention. Figure 1 ;

[0049] Figure 5 A partial cross-sectional view of a dynamic sealing anti-entanglement cable connection device for a water area cleaning machine of the present invention Figure 2 ;

[0050] In the accompanying drawings, the plug unit 1; the inner shell 11; the bottom sealed cavity 14; the first coil 15; the first sealing body 16; the anti-bending layer 100; the radial protrusion 111; the socket unit 2; the cylindrical shell 21; the cylindrical cavity 22; the second coil 23; the second sealing body 24; the external threaded portion 211; the connecting sleeve 3; and the limiting groove 32. DETAILED DESCRIPTION

[0051] The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

[0052] like Figure 1-Figure 5 As shown, a dynamic sealing anti-entanglement cable connection device for a water area cleaning machine,

[0053] include:

[0054] Rotatably mounted plug unit 1 and socket unit 2;

[0055] The plug unit comprises:

[0056] The composite shell structure is composed of an inner shell 11 and a coaxially sleeved outer shell 12, forming an annular cavity 13 and a bottom sealed cavity 14;

[0057] The first coil 15 has a conductor that is spirally arranged around the outer wall of the inner shell 11 in the annular cavity 13;

[0058] The first sealing body 16 fills and seals the bottom sealing cavity 14;

[0059] The socket unit comprises:

[0060] A cylindrical housing 21 forms a cylindrical cavity 22 inside;

[0061] The second coil 23 has a conductor arranged spirally around the inner wall of the cylindrical cavity 22;

[0062] The second sealing body 24 fills and seals the cylindrical cavity 22;

[0063] The outer wall of the inner shell 11 is provided with a radial protrusion 111;

[0064] An external threaded portion 211 on the outer wall of the cylindrical housing 21;

[0065] The connecting sleeve 3 has a thread 31 on its inner wall that matches the external thread portion 211 and a limiting groove 32 formed at its end;

[0066] The radial protrusion 111 and the limiting groove 32 form a rotating pair for relative rotation;

[0067] There is no direct electrical connection element between the plug unit and the socket unit. The contact portion between the radial protrusion 111 and the limiting groove 32 allows the presence and flow of water medium. The alternating magnetic field penetrates the first sealing body 16 and the second sealing body 24 to realize wireless power transmission based on the principle of electromagnetic induction.

[0068] The first coil 15 and the second coil 23 form a bidirectional wireless energy transmission module, and the current transmission direction is reversible;

[0069] When current is transmitted from the second coil 23 to the first coil 15:

[0070] The circuit board 4 connected to the second coil 23 converts the input current into an AC signal through a high-frequency amplifier and applies it to the second coil 23, thereby exciting an alternating magnetic field.

[0071] The first coil 15 generates an induced current in the alternating magnetic field, which is converted into a DC output by the rectifier circuit 5 connected thereto;

[0072] When current is transmitted from the first coil 15 to the second coil 23:

[0073] The circuit board 4 connected to the first coil 15 converts the input current into an AC signal through a high-frequency amplifier and applies it to the first coil 15 to excite an alternating magnetic field.

[0074] The second coil 23 generates an induced current in the alternating magnetic field, which is converted into a direct current output by the rectifier circuit 5 connected thereto.

[0075] The interface between the wire output end of the first coil 15 and the first sealing body 16 is formed with epoxy resin to form a first fixed seal;

[0076] A second fixed seal is formed at the interface between the wire output end of the second coil 23 and the second sealing body 24 by epoxy resin.

[0077] The first coil and the second coil are high-frequency coils;

[0078] The first coil is tightly wound in a spiral structure on the outer wall of the inner shell;

[0079] The second coil is coaxially spirally wound with the first coil on the inner wall of the cylindrical cavity, forming a coaxial magnetic field coupling with the first coil.

[0080] The plug unit and the socket unit are connected by screw thread rotation.

[0081] The first insulating layer is wrapped with an anti-bending layer 100 .

[0082] A circuit board 1 is fixedly mounted on the outer bottom of the inner shell 11.

[0083] The circuit board is integrated with a wireless transceiver.

[0084] The circuit board 1 is electrically connected to the head end of the signal line 1,

[0085] The tail end of the signal line 1 passes through the first sealing body 16 and extends to the outside.

[0086] A third fixed seal is formed between the through section of the signal line 1 and the first sealing body 16;

[0087] A second circuit board is fixedly mounted on the inner bottom of the cylindrical housing 21.

[0088] The second circuit board is integrated with a second wireless transceiver.

[0089] The cylindrical cavity 22 is provided with an internal signal line.

[0090] The second circuit board is connected to the first end of the second signal line through the internal signal line.

[0091] The tail end of the second signal line passes through the second sealing body 24 and extends to the outside.

[0092] A fourth fixed seal is formed between the through section of the second signal line and the second sealing body 24;

[0093] The tail end of the signal line 1 is covered with an insulating layer 1.

[0094] The tail end of the second signal line is covered with a second insulating layer.

[0095] The first circuit board and the second circuit board are both provided with a waterproof coating.

[0096] The present invention provides a dynamic sealing, anti-entanglement cable connection device for a water area cleaning machine. Through the sleeve-fitting engagement of the inner shell of the plug unit with the socket unit, coupled with the threaded locking of the connecting sleeve and the socket unit, and the clamping of the connecting sleeve and the plug unit, it enables quick, one-handed plugging and unplugging. The rotating design of the radial protrusion and the limiting groove ensures automatic alignment during plugging, preventing misoperation and enabling quick-release pluggability.

[0097] The first sealing body / the second sealing body is compression-molded with elastic material to seal the electrical connection elements and waterproof them. During use or plugging and unplugging, power transmission is achieved through magnetic field coupling, which is effectively waterproof.

[0098] In the present invention, the first coil is wound around the inner shell in the annular cavity to form a cylindrical first coil, and the second coil is wound around the socket unit in the inner cavity to form a cylindrical second coil. When the cleaning machine is in operation, the torsional force of the cable is absorbed by the elastic deformation of the two coils, preventing stress from being transmitted to the inside of the connector; the double helical coils eliminate torsion;

[0099] The axially limited but circumferentially rotatable structure is formed by the protrusion-groove cooperation between the connector and the socket unit, allowing the connector housing to rotate freely 360° so that the cable will not accumulate torque due to the movement of the cleaning machine.

[0100] The present invention realizes a bidirectional wireless energy transmission module through the cooperation of the first coil and the second coil, which is adapted to the dual-mode requirements of the water area cleaning machine such as charging or power supply. The cleaning machine automatically charges when it docks at the base station. After being fully charged, there is no need to plug and unplug the physical connector for external power supply. It also supports multiple cleaning machines to be powered or charged in turn, which is convenient for promotion and application.

[0101] The dynamic sealing anti-entanglement cable connection device for the water area cleaning machine of the present invention adopts an integrated design. The unique anti-entanglement structure can effectively prevent the cable from tangling, ensure the cleaning machine's smooth movement, and achieve full coverage path planning; the mechanical locking plug-in design eliminates the risk of accidental falling off, and the corrosion resistance of engineering plastics and silicone seals can resist the erosion of swimming pool chemicals for a long time, providing a high reliability, high energy efficiency, and suitable for high-intensity use in the swimming pool scene, which significantly improves the comprehensive performance of the water area cleaning machine in terms of waterproof performance, anti-entanglement, and service life.

[0102] Example 1

[0103] The dynamic sealing anti-entanglement cable connection device for a water area cleaning machine of the present invention is a pluggable and anti-entanglement waterproof cable connector, comprising a plug unit, a socket unit and a connecting sleeve.

[0104] The plug unit comprises a plug unit, a first coil and a first sealing body.

[0105] The plug unit comprises an inner shell and an outer shell.

[0106] The interior of the inner shell forms an inner cavity.

[0107] An annular cavity is formed between the outer walls of the outer shell and the inner shell;

[0108] An outer cavity is formed between the outer bottom of the outer shell and the inner shell, which is a bottom sealed cavity.

[0109] The annular cavity is connected with the bottom sealing cavity.

[0110] The first sealing body seals the bottom sealing cavity,

[0111] The first part of the first coil is wound around the outer wall of the inner shell in the annular cavity to form the first coil.

[0112] The second portion of the first coil extends from the first sealing body to the outside of the first sealing body,

[0113] A fixed seal is formed between the second portion of the first coil and the first sealing body.

[0114] The socket unit includes a socket unit, a second coil and a second sealing body,

[0115] A cylindrical cavity 22 is formed inside the socket unit.

[0116] The second sealing body seals the cylindrical cavity 22.

[0117] The first part of the second coil is wound around the inner wall of the socket unit in the cylindrical cavity to form a second coil.

[0118] The second portion of the second coil extends from the second sealing body to outside the inner sealed cavity.

[0119] A fixed seal is formed between the second portion of the second coil and the second sealing body,

[0120] The first coil and the second coil are both cylindrical in shape.

[0121] The inner shell is arranged on the outside of the socket unit, and a detachable connection is formed between the plug unit and the socket unit.

[0122] The inner wall of the connecting piece is threadedly connected to the outer wall of the inner shell.

[0123] A groove is formed between the inner end surface of the connecting piece and the outer end surface of the inner shell.

[0124] The outer side wall of the socket unit is provided with an annular radial protrusion.

[0125] The radial protrusion can rotate in the limiting groove.

[0126] The materials of the first sealing body and the second sealing body are poured epoxy resin glue.

[0127] The current can flow from the first coil to the second coil, or from the second coil to the first coil.

[0128] If current flows from the second coil to the first coil, the circuit board connected to the second coil will load the input current into the second coil in the form of high-frequency AC through an amplifier, causing the second coil to generate an AC, variable magnetic field. According to Faraday's principle of electromagnetic induction, when a conductor moves in a magnetic field or the magnetic field changes, an induced electromotive force will be generated. Since the first coil is in this alternating magnetic field, an alternating current will also be generated in the first coil. This current is rectified by the circuit board connected to the first coil and converted into DC for use by the subsequent circuit.

[0129] If current flows from the first coil to the second coil, the circuit board connected to the first coil loads the input current into the first coil in the form of high-frequency AC through an amplifier, causing the first coil to generate an AC, variable magnetic field. According to Faraday's principle of electromagnetic induction, when a conductor moves in a magnetic field or the magnetic field changes, an induced electromotive force is generated. Since the second coil is in this alternating magnetic field, an alternating current is also generated in the second coil. This current is rectified by the circuit board connected to the second coil and converted into DC for use by the subsequent circuit.

[0130] Since there are no electrical components such as wires between the plug unit and the socket unit, even if the contact between the plug unit and the socket unit becomes loose due to repeated plugging, unplugging and rotation, there will be no leakage even if water enters the contact between the plug unit and the socket unit.

[0131] Since a fixed seal is formed between the second part of the second coil and the opening of the second sealing body, water is prevented from entering the inner sealing cavity and contacting the second coil. A fixed seal is formed between the second part of the first coil and the opening of the first sealing body, which prevents water from entering the outer sealing cavity and contacting the first coil, thereby preventing the cable from leaking electricity in water.

[0132] The radial protrusion can rotate in the limiting groove. In this way, when the radial protrusion rotates in the limiting groove, the socket unit and the plug unit rotate, and a rotatable connection is formed between the socket unit and the plug unit body.

[0133] The outer bottom of the socket unit can extend into the inner bottom of the inner shell.

[0134] This is beneficial for increasing the relative area between the first coil and the second coil, which is more conducive to power transmission between the first coil and the second coil, and the rotation between the plug unit and the socket unit is more stable.

[0135] The axis of the second coil is the same as the axis of the first coil.

[0136] In this way, the power transmission between the first coil and the second coil is more favorable.

[0137] The first coil is a high-frequency coil, and the second coil is a high-frequency coil.

[0138] The second portion of the first coil is wrapped with an insulating layer 1.

[0139] The second portion of the second coil is wrapped with a second insulating layer.

[0140] In this way, the first coil and the second coil are prevented from leaking electricity after contacting water.

[0141] The outer side of the insulating layer is wrapped with an anti-bending layer.

[0142] In this way, the anti-bending layer protects the insulating layer and prevents the insulating layer from breaking and leaking due to too many bending times.

[0143] The material of the anti-bending layer is nylon.

[0144] Anti-bending layer and PE joint.

[0145] A threaded connection is formed between the anti-bending layer and the socket unit.

[0146] In this way, it is easy to remove the anti-bending layer from the socket unit.

[0147] A circuit board is installed on the outer bottom of the inner shell.

[0148] A transceiver is mounted on the circuit board.

[0149] One end of the signal line connected to the circuit board,

[0150] The other end of the signal line 1 extends from the first sealing body to the outside of the first sealing body.

[0151] A second circuit board is installed on the inner bottom of the socket unit.

[0152] The inner circuit board is equipped with a transceiver 2.

[0153] There is an internal signal line in the inner sealed cavity.

[0154] One end of signal line 2 is connected to circuit board 2.

[0155] The other end of the signal line 2 extends from the second sealing body to the outside of the second sealing body.

[0156] The second portion of the signal line 1 is wrapped with an insulating layer 1.

[0157] The second portion of the second signal line is wrapped with a second insulating layer.

[0158] In this way, the cable connector has the function of transmitting signals.

[0159] Preferably, both transceiver 1 and transceiver 2 are infrared photoelectric transceivers, so that transceiver 1 and transceiver 2 will not be interfered by the magnetic field generated by the first coil and the second coil.

[0160] The first circuit board and the second circuit board are PCB circuit boards.

[0161] Water area cleaning machine, including a dynamic sealing anti-entanglement cable connection device for the water area cleaning machine,

[0162] Including the main shell and sealed cabin,

[0163] The sealed cabin is located inside the main shell.

[0164] The overall shell includes an upper shell and a lower shell.

[0165] The plug unit is installed on the upper housing.

[0166] The inner cavity of the inner shell faces the outside of the total shell.

[0167] The outer cavity of the outer shell faces the interior of the overall shell.

[0168] The above-mentioned specific implementation methods are used to illustrate the present invention and are only preferred embodiments of the present invention, rather than limiting the present invention. Any modifications, equivalent substitutions, improvements, etc. made to the present invention within the spirit of the present invention and the scope of protection of the claims shall fall within the scope of protection of the present invention.

Claims

1. A dynamic sealing anti-entanglement cable connection device for a water area cleaning machine, characterized in that: include: swivel-mounted plug and socket units; The plug unit comprises: The composite shell structure consists of an inner shell and a coaxially sleeved outer shell, forming an annular cavity and a bottom sealed cavity; A first coil, the conductor of which is spirally arranged around the outer wall of the inner shell in the annular cavity; The first sealing body fills and seals the bottom sealing cavity; The socket unit comprises: A cylindrical shell with a cylindrical cavity formed inside; a second coil, the conductor of which is spirally arranged around the inner wall of the cylindrical cavity; The second sealing body fills and seals the cylindrical cavity; The outer wall of the inner shell is provided with a radial protrusion, an external threaded portion on the outer wall of the cylindrical shell, and the inner wall of the connecting sleeve is provided with a thread that cooperates with the threaded portion, and a limiting groove is formed at the end. The radial protrusion and the limiting groove constitute a rotating pair for relative rotation, allowing the plug unit to rotate 360° continuously, solving the problem of winding, and at the same time, facilitating cooperation with the open water flow design; there is no direct electrical connection element between the plug unit and the socket unit, and the contact part between the radial protrusion and the limiting groove allows the existence and circulation of water medium, and the alternating magnetic field penetrates the first sealing body and the second sealing body to realize energy transmission, which not only prevents cable winding, but also avoids pressure accumulation in the sealing cavity, and realizes long-term waterproofing under dynamic working conditions.

2. The dynamic sealing anti-entanglement cable connection device for a water area cleaning machine according to claim 1, characterized in that: The first coil and the second coil are coupled by an alternating magnetic field to achieve contactless transmission of electric energy, and the direction of current transmission is reversible; When current is transferred from the second coil to the first coil: The circuit board connected to the second coil converts the input current into an AC signal through a high-frequency amplifier and applies it to the second coil, thereby exciting an alternating magnetic field. The first coil generates an induced current in the alternating magnetic field, which is converted into a DC output by the rectifier circuit connected thereto; When current is transferred from the first coil to the second coil: The circuit board connected to the first coil converts the input current into an AC signal through a high-frequency amplifier and applies it to the first coil to excite an alternating magnetic field; The second coil generates an induced current in the alternating magnetic field, which is converted into a direct current output by the rectifier circuit connected thereto.

3. The dynamic sealing anti-entanglement cable connection device for a water area cleaning machine according to claim 1, characterized in that: The first coil and the second coil are high-frequency coils; The first coil is tightly wound in a spiral structure on the outer wall of the inner shell; The second coil is coaxially spirally wound with the first coil on the inner wall of the cylindrical cavity, forming a coaxial magnetic field coupling with the first coil.

4. The dynamic sealing anti-entanglement cable connection device for a water area cleaning machine according to claim 1, characterized in that: A first fixed seal is formed at the interface between the wire output end of the first coil and the first sealing body by epoxy resin; A second fixed seal is formed at the interface between the wire output end of the second coil and the second sealing body by epoxy resin.

5. The dynamic sealing anti-entanglement cable connection device for a water area cleaning machine according to claim 1, characterized in that: The plug unit and the socket unit are axially fixed by a threaded structure, and at the same time, a rotational substructure composed of radial protrusions and limiting grooves enables the two to rotate relative to each other around the axis, thereby maintaining a dynamic rotation function in a mechanically locked state.

6. The dynamic sealing anti-entanglement cable connection device for a water area cleaning machine according to claim 1, characterized in that: The signal transmission assembly of the plug unit includes: a circuit board fixed to the bottom of the inner shell, with an integrated wireless transceiver; a signal line connected to the circuit board at one end, and extending to the outside at the other end through the first sealing body, with the through-section of the signal line and the first sealing body isolated by a third fixed seal; and an insulating layer covering the outside of the signal line at the other end; The signal transmission component of the socket unit includes: a second circuit board fixed to the bottom of the cylindrical shell, with an integrated wireless transceiver; the second circuit board is connected to the head end of the second signal line through an internal signal line, and the tail end of the second signal line extends through the second sealing body to the outside, and the penetration section forms a fourth fixed seal, which is covered with an insulating layer second on the outside.

7. The dynamic sealing anti-entanglement cable connection device for a water area cleaning machine according to claim 6, characterized in that: The outer side of the insulating layer is wrapped with an anti-bending layer.

8. The dynamic sealing anti-entanglement cable connection device for a water area cleaning machine according to claim 6, characterized in that: The first circuit board and the second circuit board are both provided with a waterproof coating.

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