A structural integrated submersible propeller

Abstract

The utility model relates to submersible propeller technical field especially for a kind of structure integration's submersible propeller, including control handle, control handle lower end is fixedly installed with propulsion mechanism by bolt, aluminium alloy electrically-controlled heat dissipation shell is installed in the inside of propulsion mechanism by bolt, aluminium alloy electrically-controlled heat dissipation shell side is fixedly connected with connecting mechanism by bolt, connecting mechanism is clamped in power mechanism one end, and propulsion mechanism includes skeg, the inside fixed connection of skeg has motor cover, aluminium alloy motor cover shell is welded in motor cover side, connecting mechanism includes locking cap, locking cap inside is welded with clamping block, and block slot is set in clamping block side, power mechanism includes screw cap, and the inside fixed connection of screw cap has clamping plate, in the utility model, under the premise of compact lightweight easy maintenance, waterproof capacity and structural strength are considered, and the heat dissipation area multiplexing is realized through the connection of each component, the overheat hidden danger of battery and motor is solved.

Description

Technical Field

[0001] This utility model relates to the field of submersible propulsion technology, specifically to a submersible propulsion device with an integrated structure. Background Technology

[0002] A diving propulsion device is an underwater propulsion device that is usually powered by a battery-driven propeller to generate thrust. Users can hold it or attach it to their body and use its power to move quickly in the water, significantly saving energy and improving diving efficiency. It is widely used in recreational diving, underwater photography, rescue and search and military fields, and can help divers extend their underwater time and expand their range of activities. It is especially suitable for exploration in complex waters.

[0003] Small and medium-sized submersible thrusters generally adopt a split or modular assembly structure. This design can improve portability, making the equipment easier to disassemble, store and transport, and suitable for personal carrying and outdoor use. Secondly, it facilitates maintenance and repair, as modular components can be disassembled and replaced independently, reducing failure repair costs and extending equipment life.

[0004] However, while the split or modular structure of the submersible thruster is convenient for carrying and disassembly, the mechanical connection points will form weak links. At the same time, the independent and distributed modular layout of each unit will cause spatial redundancy and hinder the thermal management path, causing the electronic control system to fail under water pressure or burn out due to low heat dissipation efficiency. Therefore, an integrated submersible thruster is proposed to address the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a submersible propulsion device with an integrated structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An integrated submersible propulsion device includes a control grip. A propulsion mechanism is bolted to the lower end of the control grip. An aluminum alloy electronically controlled heat sink is bolted to the inner side of the propulsion mechanism. A connecting mechanism is bolted to one side of the aluminum alloy electronically controlled heat sink. The connecting mechanism is engaged with one end of a power mechanism. The propulsion mechanism includes a wake shield. A motor cover is fixedly connected to the inner side of the wake shield. An aluminum alloy motor housing is welded to one side of the motor cover. The connecting mechanism includes a locking cover. A locking block is welded to the inner side of the locking cover. A slot is formed on one side of the locking block. The power mechanism includes a tightening cover. A locking plate is fixedly connected to the inner side of the tightening cover. An aluminum alloy battery shell is threaded to the outer side of the tightening cover. A battery cell is disposed inside the aluminum alloy battery shell. A locking connector is bolted to one end of the aluminum alloy battery shell. A locking groove is formed on the outer side of the locking connector. A slot block is fixedly disposed inside the locking groove.

[0008] As a further optimization of this utility model, a waterproof motor is installed inside the aluminum alloy motor housing, and a motor controller is fastened to the outside of the aluminum alloy motor housing. The motor controller and the waterproof motor are electrically connected. The motor cover is fixed to the waterproof motor housing by screws, and the main shaft of the waterproof motor passes through the motor cover and is fixedly connected to the propeller.

[0009] As a further optimization of this utility model, a portion of the aluminum alloy ESC heat sink is disposed inside the aluminum alloy motor housing, and the outer side of the aluminum alloy ESC heat sink is in close contact with the inner side of the aluminum alloy motor housing. A locking cap is snapped onto one end of the aluminum alloy motor housing, and the aluminum alloy motor housing and the locking cap form a radial seal.

[0010] As a further optimization of this utility model, the locking cover has multiple anti-slip grooves on its outer side, and multiple locking blocks are provided, which are evenly and equidistantly distributed in a circular array on the inner side of the locking cover. One end of each locking block is arc-shaped.

[0011] As a further optimization of this utility model, the locking cover is fitted with an electronic speed controller PCBA, and the locking cover and the electronic speed controller PCBA are in a rotational fit. A portion of the aluminum alloy electronic speed controller heat sink is fitted between the electronic speed controller PCBA and the locking cover. The electronic speed controller PCBA and the motor controller are electrically connected through the metal pins of the aluminum alloy electronic speed controller heat sink.

[0012] As a further optimization of this utility model, the screw-on cover is fitted with a screw-on sealing ring on its outer side, the screw-on sealing ring is set in the gap between the aluminum alloy battery shell and the screw-on cover, the upper end of the aluminum alloy battery shell is fixedly connected to a control handle by bolts, the battery cell is a regular hexagon in axial projection, and the outer side of the battery cell is attached to one side of the card plate.

[0013] As a further optimization of this utility model, wherein: a portion of the snap-fit ​​connector is inserted into the aluminum alloy battery casing and forms a radial seal with the aluminum alloy battery casing; the other portion of the snap-fit ​​connector is located on the outside of the aluminum alloy battery casing and forms an axial seal with the aluminum alloy battery casing; the opening position of the snap-fit ​​slot corresponds one-to-one with the position of the snap-fit ​​block; the slot block is snapped into the inner side of the slot; an O-ring is bonded and fixed to the inner side of the snap-fit ​​connector; the O-ring is fitted onto the ESC PCBA; a compression rubber gasket is provided on the inner side of the snap-fit ​​connector; one side of the compression rubber gasket is in close contact with one side of the ESC PCBA.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this utility model, by using nested and snap-fit ​​connections between components, along with the setting of various seals, key connection points are hidden and protection is strengthened, forming an integrated frame design. Under the premise of being compact, lightweight and easy to maintain, it also improves waterproof capability and structural strength. Furthermore, by connecting the components, the heat dissipation area is reused, thus solving the overheating hazard of the battery cell and motor. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the installation position of the propulsion mechanism of this utility model;

[0019] Figure 4 This is an exploded structural diagram of the propulsion mechanism of this utility model;

[0020] Figure 5 This is a cross-sectional structural diagram of the connecting mechanism of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the card block of this utility model;

[0022] Figure 7 This is a schematic diagram of the power mechanism of this utility model;

[0023] Figure 8 for Figure 7 Enlarged structural diagram at point A;

[0024] Figure 9 This is an exploded structural diagram of the power mechanism of this utility model;

[0025] Figure 10 for Figure 9 Enlarged diagram of point B in the middle.

[0026] In the picture: 1. Control grip;

[0027] 2. Propulsion mechanism; 21. Wake fairing; 22. Motor cover; 23. Aluminum alloy motor housing; 24. Motor controller; 25. Waterproof motor; 26. Propeller;

[0028] 3. Aluminum alloy ESC heatsink housing;

[0029] 4. Connecting mechanism; 41. Locking cover; 42. Anti-slip groove; 43. Locking block; 44. Inter-block groove; 45. ESC PCBA;

[0030] 5. Power mechanism; 51. Tightening cap; 52. Tightening sealing ring; 53. Clamping plate; 54. Aluminum alloy battery casing; 55. Battery cell; 56. Clamping connector; 57. Clamping slot; 58. Slot block; 59. O-ring; 510. Pressing rubber gasket ring. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] Please see Figures 1-10 This utility model provides a technical solution:

[0034] A submersible thruster with an integrated structure includes a control handle 1. A propulsion mechanism 2 is bolted to the lower end of the control handle 1. An aluminum alloy electronically controlled heat sink 3 is bolted to the inner side of the propulsion mechanism 2. A connecting mechanism 4 is bolted to one side of the aluminum alloy electronically controlled heat sink 3. The connecting mechanism 4 is snapped onto one end of a power mechanism 5. The propulsion mechanism 2 includes a wake shroud 21. A motor cover 22 is fixedly connected to the inner side of the wake shroud 21. An aluminum alloy motor housing 23 is welded to one side of the motor cover 22. The connecting mechanism 4... The system includes a locking cover 41, a locking block 43 welded to the inside of the locking cover 41, and a slot 44 on one side of the locking block 43. The power mechanism 5 includes a tightening cover 51, a locking plate 53 fixedly connected to the inside of the tightening cover 51, an aluminum alloy battery shell 54 threadedly connected to the outside of the tightening cover 51, a battery cell 55 disposed inside the aluminum alloy battery shell 54, a locking connector 56 fixedly connected to one end of the aluminum alloy battery shell 54 by bolts, a locking groove 57 disposed on the outside of the locking connector 56, and a slot block 58 fixedly disposed inside the locking groove 57.

[0035] As a further implementation of this solution, a waterproof motor 25 is installed inside the aluminum alloy motor housing 23, and a motor controller 24 is clipped onto the outside of the aluminum alloy motor housing 23. The motor controller 24 and the waterproof motor 25 are electrically connected. The motor cover 22 is fixed to the outer shell of the waterproof motor 25 by screws. The main shaft of the waterproof motor 25 passes through the motor cover 22 and is fixedly connected to the propeller 26. The aluminum alloy motor housing 23 not only possesses lightweight characteristics, reducing the overall weight of the equipment, but also has excellent structural strength and deformation resistance, providing a stable mounting support frame for the internal waterproof motor 25. Simultaneously, it has good thermal conductivity, helping the waterproof motor 25 dissipate heat. The motor cover 22 is fixed to the outer shell of the waterproof motor 25 by screws. The design of fixing the wire to the housing of the waterproof motor 25 and directly fixing the propeller 26 to the main shaft of the waterproof motor 25 ensures the transmission accuracy between the waterproof motor 25, the motor cover 22 and the propeller 26, and reduces the gap and shaking during operation. The motor controller 24 is clipped on the outside of the aluminum alloy motor cover 23. While ensuring its own stability, it can also ensure the electrical connection between the controller and the waterproof motor 25. In addition, it is also physically separated from the waterproof motor 25. On the one hand, it avoids the impact of the high temperature generated by the motor during operation on the electronic components of the controller and extends the service life of the controller. On the other hand, it reduces the electromagnetic interference between the motor and the controller, ensures the stable transmission of electrical signals, and reduces electrical safety hazards such as short circuits and leakage.

[0036] As a further implementation of this solution, a portion of the aluminum alloy ESC heat sink 3 is disposed inside the aluminum alloy motor housing 23, and the outer side of the aluminum alloy ESC heat sink 3 is in close contact with the inner side of the aluminum alloy motor housing 23. A locking cover 41 is snapped onto one end of the aluminum alloy motor housing 23, and the aluminum alloy motor housing 23 and the locking cover 41 form a radial seal. The direct contact between the outer side of the aluminum alloy ESC heat sink 3 and the inner side of the aluminum alloy motor housing 23 allows heat to be transferred between them, realizing the reuse and expansion of the heat dissipation area. The portion of the aluminum alloy ESC heat sink 3 is embedded inside the aluminum alloy motor housing 23, which is equivalent to forming a "nested" structure, improving structural stability and effectively resisting vibration, impact and external extrusion during equipment operation. This prevents internal components from loosening, falling off or the wiring from being damaged, thus improving the reliability of the system structure. The radial sealing structure formed by the aluminum alloy motor housing 23 and the locking cover 41 can effectively prevent external contaminants such as dust, mud, water vapor, and oil from entering the housing, avoiding faults such as short circuits in the ESC circuit board and jamming of the motor bearing.

[0037] As a further implementation of this solution, the locking cover 41 has multiple anti-slip grooves 42 on its outer side, and multiple locking blocks 43 are provided, which are evenly and equidistantly distributed in a circular array on the inner side of the locking cover 41. One end of the locking block 43 is arc-shaped. An electronic speed controller PCBA 45 is locked on the inner side of the locking cover 41, and a rotational fit is formed between the locking cover 41 and the electronic speed controller PCBA 45. A portion of the aluminum alloy electronic speed controller heat sink 3 is locked between the electronic speed controller PCBA 45 and the locking cover 41. The electronic speed controller PCBA 45 and the motor controller 24 are electrically connected through the metal pins of the aluminum alloy electronic speed controller heat sink 3. The multiple anti-slip grooves 42 on the outer side of the locking cover 41 can effectively increase the friction between the hand and the cover, especially when the hands are wet, oily, or wearing gloves, which can prevent slippage during assembly and make it easier for the operator to complete the locking cover 41. The locking and unlocking action of 1 involves multiple locking blocks 43 evenly distributed in a ring array inside the locking cover 41, which can form a multi-point uniform locking force, making the connection between the locking cover 41 and other parts more secure, avoiding the problem of excessive local force and loosening of the cover due to single point or non-uniform locking. The ESC PCBA45 is locked inside the locking cover 41 and forms a rotational fit. During the assembly process, even if there is a slight angular deviation of the ESC PCBA45 during installation, there is a certain amount of adjustment space, which greatly reduces the difficulty of assembly alignment and improves assembly efficiency. The design of the ESC PCBA45 and the motor controller 24 forming an electrical connection through the metal pins of the aluminum alloy ESC heat sink 3 allows the ESC PCBA45 to be fixed on the aluminum alloy ESC heat sink 3 when the ESC PCBA45 and the motor controller 24 are connected, thereby avoiding displacement or shaking.

[0038] As a further implementation of this solution, a screw-on sealing ring 52 is fitted on the outer side of the screw-on cap 51. The screw-on sealing ring 52 is positioned in the gap between the aluminum alloy battery casing 54 and the screw-on cap 51. The upper end of the aluminum alloy battery casing 54 is fixedly connected to a control handle 1 by bolts. The battery cell 55 is a regular hexagon in axial projection, and the outer side of the battery cell 55 is in contact with one side of the clamping plate 53. The screw-on sealing ring 52 can precisely fill the tiny gaps formed after the aluminum alloy battery casing 54 and the screw-on cap 51 are assembled, forming a continuous and tight sealing surface. Compared with a structure without a sealing ring, it can effectively prevent external contaminants such as water, dust, mud, and oil from entering the aluminum alloy battery. Inside the outer casing 54, the upper end of the aluminum alloy battery casing 54 is fixedly connected to the control handle 1 by bolts. The bolt connection has high connection strength and rigidity, which can firmly combine the aluminum alloy battery casing 54 and the control handle 1 into a whole, increasing the fixing points of the control handle 1 and preventing it from loosening or separating during gripping operation and equipment movement. The clamping plate 53 can prevent the battery cells 55 from colliding or shifting during the movement and vibration of the power mechanism 5, avoiding problems such as breakage of the battery cells 55 and damage to the casing. On the other hand, the clamping plate 53 can improve the structural stability of the power mechanism 5 and facilitate the installation and replacement of the battery cells 55.

[0039] As a further implementation of this solution, a portion of the snap-fit ​​connector 56 is inserted into the aluminum alloy battery casing 54 and forms a radial seal with the aluminum alloy battery casing 54. The other portion of the snap-fit ​​connector 56 is located on the outside of the aluminum alloy battery casing 54 and forms an axial seal with the aluminum alloy battery casing 54. The opening position of the snap-fit ​​groove 57 corresponds one-to-one with the position of the snap-fit ​​block 43. The slot block 58 is snapped into the inside of the slot 44. An O-ring 59 is bonded and fixed to the inside of the snap-fit ​​connector 56. The O-ring 59 is fitted onto the electronic speed control PCBA 45. A compression rubber gasket 510 is provided inside the snap-fit ​​connector 56. One side of component 10 is in close contact with the side of the ESC PCBA 45. The two sealing methods between the connector 56 and the aluminum alloy battery casing 54 provide more comprehensive protection compared to a single-direction seal. This upgrades the protection level of the connection between the aluminum alloy battery casing 54 and the connector 56 to IP68 or higher, meeting the requirements of scenarios such as diving and underwater work platforms. The slots 57 correspond one-to-one with the blocks 43, and the inter-slot blocks 58 are engaged inside the inter-slot slots 44, forming a double precision alignment structure. This enables rapid alignment between components, significantly reducing assembly jamming and component wear caused by alignment deviations. This improves assembly efficiency and standardization, while upgrading from "single-point snap-fit" to "multi-point interlocking fixation," effectively enhancing the structure's resistance to torsion and pull-out, preventing component loosening during equipment operation. The O-ring 59 inside the snap-fit ​​connector 56 is fitted onto the ESC PCBA 45. On one hand, it fills the gap between the snap-fit ​​connector 56 and the ESC PCBA 45, preventing contaminants from entering the core circuit area along the surface of the ESC PCBA 45, further strengthening the internal seal. On the other hand, the rubber O-ring 59 provides insulation, preventing short-circuit faults to a certain extent. To ensure the safe operation of the ESC PCBA45, the design of the clamping rubber gasket 510, which is tightly attached to one side of the ESC PCBA45, not only provides a seal but also absorbs the clamping force of the ESC PCBA45 through its own elastic deformation during assembly. This prevents rigid pressure from acting directly on the ESC PCBA45, thus preventing bending, cracking, or component detachment. At the same time, during equipment operation, the clamping rubber gasket 510 can absorb vibration energy, reduce the impact of vibration on the ESC PCBA45, and extend the service life of the core components of the ESC PCBA45.

[0040] Workflow: Insert the aluminum alloy ESC heat sink 3 between the ESC PCBA 45 and the locking cover 41, ensuring a stable and seamless connection between the aluminum alloy ESC heat sink 3, the ESC PCBA 45, and the locking cover 41. Then, use screws to fix the aluminum alloy ESC heat sink 3 and the ESC PCBA 45, making them a single unit. Next, use bolts to fix the aluminum alloy motor housing 23 to the aluminum alloy ESC heat sink 3. Place the battery cell 55 in the aluminum alloy battery casing 54, and rotate the tightening cover 51 to connect the tightening cover 51 to the aluminum alloy battery casing 54, pressing the screw-on sealing ring 52 against it. A radial seal is formed between the cover 51 and the aluminum alloy battery casing 54. After the cover 51 is screwed into place, the outer side of the battery cell 55 engages with multiple retaining plates 53, ensuring that the battery cell 55 will not rotate within the aluminum alloy battery casing 54. Next, bolts are used to fix the retaining connector 56 to one end of the aluminum alloy battery casing 54. At this point, part of the retaining connector 56 is inserted into the aluminum alloy battery casing 54, and part blocks the opening at one end of the aluminum alloy battery casing 54, thus forming both an axial and radial seal between the retaining connector 56 and the aluminum alloy battery casing 54. Then, the retaining connector 56 is aligned with and rotated to engage the locking cover 41. The anti-slip groove 42 on the locking cover 41 increases the slip resistance. The surface friction of the locking cover 41 prevents slippage when rotating it. The arc-shaped design of one end of the locking block 43 inside the locking cover 41 allows it to better engage with the slot 57 during rotation, and the slot block 58 engages with the slot 44 on one side of the locking block 43, thus completing the connection between the locking cover 41 and the connector 56. At this time, the ESC PCBA 45 penetrates into the connector 56 and presses the compression rubber gasket 510 inside the connector 56, subjecting the compression rubber gasket 510 to a force parallel to the axis of the ESC PCBA 45, thereby forming an axial seal and adhering to the... The O-ring 59 on the inner side of the connector 56 is tightly attached to the outer side of the electronic control PCBA 45 and deformed by the compression of the electronic control PCBA 45 to form a radial seal. Finally, the control handle 1 is installed on the propulsion mechanism 2 by bolts, and the control handle 1 is connected and fixed to the aluminum alloy battery shell 54 by bolts. At this time, the entire device is assembled and forms a whole. The above installation steps hide the weak connection points of each sub-structure, and each sub-structure connection is equipped with good sealing measures, with excellent waterproof sealing performance, enabling the device to withstand greater water pressure, water flow impact and mechanical load, and significantly enhancing its resistance to deformation and impact.

[0041] When using the device, check the overall structure for obvious deformation, cracks, or scratches. Pay particular attention to the metal connections, such as the screw cap 51, aluminum alloy battery casing 54, aluminum alloy ESC heat sink 3, and aluminum alloy motor casing 23, to ensure they are intact. Also check for looseness in the taillight shroud 21 and for damage, deformation, or foreign object entanglement in the propeller 26 within the taillight shroud 21. After confirming everything is in order, turn on the switch on the motor controller 24 and observe if the indicator light illuminates. If the indicator light on the motor controller 24 illuminates normally, it indicates that the battery cell 55 is electrically connected to the ESC PCBA 45 via the snap-fit ​​connector 56, and the ESC PCBA 45 is also electrically connected to the motor controller 24. This indicates that all components of the device are properly connected. At this point, the aluminum alloy battery casing 54 is integrated with the aluminum alloy ESC heat sink 3 via the snap-fit ​​connector 56 and the ESC PCBA 45, and is locked in place by the locking cap 41. The alloy ESC heat sink 3 is fixedly attached to the aluminum alloy motor housing 23 over a large area. This allows the heat transferred from the battery cell 55 to the aluminum alloy ESC heat sink 3, as well as the heat transferred from the propulsion mechanism 2 to the aluminum alloy ESC heat sink 3, to be directly conducted to the large aluminum alloy battery housing 54. The heat is then quickly dissipated through heat exchange between the outer surface of the aluminum alloy battery housing 54 and the water, effectively preventing the battery cell 55 or the waterproof motor 25 installed in the aluminum alloy motor housing 23 from overheating after prolonged use. At this time, pressing the switch on the control handle 1 sends a remote control signal through its internal encoding chip. After the signal is received by the decoding chip inside the motor controller 24, the motor controller 24 will control the waterproof motor 25 to start. The main shaft of the waterproof motor 25 rotates in the motor housing 22 and drives the propeller 26 to rotate in the wake shroud 21. The device can then be used after being placed stably in the water.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A structurally integrated submersible thruster, comprising a control grip (1), characterized in that: The lower end of the control grip (1) is fixedly installed with a propulsion mechanism (2) by bolts. An aluminum alloy electrically adjustable heat sink (3) is installed on the inner side of the propulsion mechanism (2) by bolts. A connecting mechanism (4) is fixedly connected to one side of the aluminum alloy electrically adjustable heat sink (3) by bolts. The connecting mechanism (4) is snapped into one end of the power mechanism (5). The propulsion mechanism (2) includes a tail fairing (21), a motor cover (22) is fixedly connected to the inside of the tail fairing (21), and an aluminum alloy motor housing (23) is welded to one side of the motor cover (22). The connecting mechanism (4) includes a locking cover (41), a locking block (43) is welded to the inside of the locking cover (41), and a block groove (44) is provided on one side of the locking block (43). The power mechanism (5) includes a screw cap (51), a clamping plate (53) is fixedly connected to the inside of the screw cap (51), an aluminum alloy battery shell (54) is threadedly connected to the outside of the screw cap (51), a battery cell (55) is provided inside the aluminum alloy battery shell (54), a clamping connector (56) is fixedly connected to one end of the aluminum alloy battery shell (54) by bolts, a clamping groove (57) is provided on the outside of the clamping connector (56), and a slot block (58) is fixedly provided inside the clamping groove (57).

2. The integrated submersible thruster according to claim 1, characterized in that: A waterproof motor (25) is installed inside the aluminum alloy motor housing (23), and a motor controller (24) is installed on the outside of the aluminum alloy motor housing (23). The motor controller (24) and the waterproof motor (25) are electrically connected. The motor cover (22) is fixed to the outer shell of the waterproof motor (25) by screws. The main shaft of the waterproof motor (25) passes through the motor cover (22) and is fixedly connected to the propeller (26).

3. The integrated submersible thruster according to claim 1, characterized in that: A portion of the aluminum alloy ESC heat sink (3) is disposed inside the aluminum alloy motor housing (23), and the outer side of the aluminum alloy ESC heat sink (3) is in close contact with the inner side of the aluminum alloy motor housing (23). A locking cover (41) is snapped onto one end of the aluminum alloy motor housing (23), and the aluminum alloy motor housing (23) and the locking cover (41) form a radial seal.

4. The integrated submersible thruster according to claim 1, characterized in that: The locking cover (41) has multiple anti-slip grooves (42) on its outer side, and multiple locking blocks (43) are provided. The multiple locking blocks (43) are evenly distributed in a ring array on the inner side of the locking cover (41), and one end of the locking block (43) is arc-shaped.

5. The integrated submersible thruster according to claim 1, characterized in that: The locking cover (41) has an electronic control PCBA (45) inside, and the locking cover (41) and the electronic control PCBA (45) are rotated together. A portion of the aluminum alloy electronic control heat sink (3) is located between the electronic control PCBA (45) and the locking cover (41). The electronic control PCBA (45) and the motor controller (24) are electrically connected through the metal pins of the aluminum alloy electronic control heat sink (3).

6. The submersible thruster with an integrated structure according to claim 1, characterized in that: The screw cap (51) is fitted with a screw-on sealing ring (52) on the outside. The screw-on sealing ring (52) is set in the gap between the aluminum alloy battery shell (54) and the screw cap (51). The upper end of the aluminum alloy battery shell (54) is fixedly connected to a control handle (1) by bolts. The battery cell (55) is a regular hexagon in axial projection. The outer side of the battery cell (55) is attached to one side of the card plate (53).

7. The integrated submersible thruster according to claim 1, characterized in that: One part of the snap-fit ​​connector (56) is inserted into the aluminum alloy battery casing (54) and forms a radial seal with the aluminum alloy battery casing (54). The other part of the snap-fit ​​connector (56) is set on the outside of the aluminum alloy battery casing (54) and forms an axial seal with the aluminum alloy battery casing (54). The opening position of the snap-fit ​​slot (57) corresponds one-to-one with the position of the snap-fit ​​block (43). The slot block (58) is snapped into the inside of the slot (44). An O-ring (59) is bonded and fixed to the inside of the snap-fit ​​connector (56). The O-ring (59) is sleeved on the electronic control PCBA (45). A pressing rubber gasket (510) is provided on the inside of the snap-fit ​​connector (56). One side of the pressing rubber gasket (510) is in close contact with one side of the electronic control PCBA (45).

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