CN116897129A

CN116897129A - Outboard motor and water area movable equipment

Info

Publication number: CN116897129A
Application number: CN202280006455.7A
Authority: CN
Inventors: 李军; 陶师正; 万小康; 屈晓峰; 王海洋
Original assignee: Guangdong ePropulsion Technology Co Ltd
Current assignee: Guangdong ePropulsion Technology Co Ltd
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2023-10-17
Also published as: WO2024055214A1

Abstract

An outboard motor (100) and a water area mobile device (300). The outboard motor (100) comprises a frame (10), a power motor (21), a driver (22), a transmission mechanism (30) and a heat dissipation mechanism (40). The housing (10) defines a receiving chamber (11). The power motor (21), the driver (22) and the transmission mechanism (30) are all arranged in the accommodating cavity (11), the driver (22) is electrically connected with the power motor (21), one end of the transmission mechanism (30) is directly connected with the output end of the power motor (21), the other end of the transmission mechanism (30) extends out of the frame (10), and one end of the transmission mechanism (30) extending out of the frame (10) is used for being connected with the propeller (23) so as to transmit the rotation torque of the power motor (21) to the propeller (23). The heat radiation mechanism (40) is arranged on the frame (10) and is used for cooling the power motor (21), the driver (22) and the transmission mechanism (30).

Description

Outboard motor and water area movable equipment

Technical Field

The application relates to the technical field of ships, in particular to an outboard motor and water area movable equipment.

Background

The outboard motor is a propulsion device for the vessel for propelling the vessel in a body of water. The driving system of the known outboard motor has larger volume, smaller power density and lower energy transmission efficiency, and the cooling system of the driving system has complex structure, so that the driving system has larger mass, vibration and noise, and is unfavorable for the user experience of products.

Disclosure of Invention

The application provides an outboard motor and water area movable equipment.

The application provides an outboard motor, which comprises a frame, a power motor, a driver, a transmission mechanism, a propeller and a heat dissipation mechanism. The frame defines a receiving cavity. The power motor, the driver and the transmission mechanism are all arranged in the accommodating cavity, the driver is electrically connected with the power motor, one end of the transmission mechanism is directly connected with the output end of the power motor, the other end of the transmission mechanism extends out of the frame, one end of the transmission mechanism extending out of the frame is connected with the propeller so as to transmit the rotating torque of the power motor to the propeller, and the heat dissipation mechanism is arranged on the frame and is used for cooling the power motor, the driver and the transmission mechanism.

The power motor, the driver and the transmission mechanism are all arranged in the accommodating cavity, the driver is electrically connected with the power motor, one end of the transmission mechanism is directly connected with the output end of the power motor, the driver and the transmission mechanism are integrated together, the power motor, the driver and the transmission mechanism are not required to be connected through an external structure, and therefore, the AC three-phase line between the power motor and the driver, peripheral accessories such as a mounting bracket and the like are saved, the production cost of the outboard motor is reduced, the energy transmission path of the AC three-phase line is also reduced, the loss of energy on the transmission path is reduced, and the energy utilization efficiency is improved.

Meanwhile, the power motor, the driver and the transmission mechanism are all arranged in the accommodating cavity, so that the heat dissipation mechanism can cool the power motor, the driver and the transmission mechanism at the same time, a complex externally-hung cooling mechanism is not required, the power motor, the driver and the transmission mechanism in the frame can be cooled by using a simple heat dissipation mechanism, the cooling efficiency of the outboard motor is improved, the quality of the heat dissipation mechanism is reduced, the weight and noise vibration of the outboard motor are further reduced, and the user experience of the outboard motor is improved.

The application also provides a movable water area device, which comprises: a hull; the outboard motor described above is mounted to the hull.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly describe the drawings in the embodiments, it being understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing a use state of a water area movable apparatus according to an embodiment of the present application;

FIG. 2 is a schematic view of an outboard motor according to an embodiment of the application;

FIG. 3 is a schematic view of another implementation of an outboard motor according to an embodiment of the application;

FIG. 4 is a schematic view of another implementation of an outboard motor according to an embodiment of the application;

FIG. 5 is a schematic view of another implementation of an outboard motor according to an embodiment of the application;

FIG. 6 is a schematic view of another implementation of an outboard motor according to an embodiment of the application;

FIG. 7 is a schematic view of another implementation of an outboard motor according to an embodiment of the application;

FIG. 8 is a schematic view of another implementation of an outboard motor according to an embodiment of the application;

fig. 9 is a schematic view of another implementation of the outboard motor of the embodiment of the application.

Description of main reference numerals:

outboard motor 100

Frame 10

Accommodation chamber 11

First electric control chamber 111

First oil cooling chamber 112

The water section 12

Water containing chamber 121

Second electrically controlled chamber 1211

Second oil-cooled cavity 1212

First mounting portion 122

First mounting cavity 1221

Second mounting portion 123

Second mounting cavity 1231

Heat dissipation structure 124

The underwater portion 13

Underwater accommodating chamber 131

Third electronic control cavity 1311

Third oil Cooling Chamber 1312

Extension case 132

Accommodation space 1321

Underwater diversion portion 133

Underwater cavity 1331

Tailhole 134

Wave pressing part 14

Receiving chamber 141

Cooling flow passage 142

Second cooling pipe 143

Groove 15

Power motor 21

Stator 211

Rotor 212

Output shaft 213

Fixed end 214

Power take-off 215

Driver 22

Propeller 23

Tail shaft 24

First cable 25

Second cable 26

Third cable 27

Transmission mechanism 30

Upper gear shifting assembly 31

Upper gear teeth 311

Centrally-mounted transmission shaft 32

Lower speed changing assembly 33

Lower speed changing tooth 331

Heat dissipation mechanism 40

Built-in heat dissipation assembly 41

Circulation assembly 411

Circulation pump 4111

Reflux tube 4112

First cooling tube 4113

Filter 4114

Spray piece 412

Water cooling pipe 413

Water tank 414

Water outlet 4141

Return water port 4142

External heat sink assembly 42

Radiating fin 421

First diversion trench 422

Radiating rib 423

Second diversion trench 424

First separator 51

First threading hole 511

Second separator plate 52

Second threading hole 521

Third partition plate 53

Third threading hole 531

First cooling oil 61

Second cooling oil 62

Third cooling oil 63

Tail shaft seal 71

First strand seal 72

Second harness seal 73

Third wire harness seal 74

Steering mechanism 80

Power piece 81

Steering motor 811

Linkage 82

Linkage shaft 821

Shift unit 822

Speed change gear 8221

Hull 200

Space 201 in ship

Water area mobile device 300

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "or/and" as used herein includes any and all combinations of one or more of the associated listed items.

Some embodiments of the application are described in detail. The following embodiments and features of the embodiments may be combined with each other without collision.

Examples

Referring to fig. 1, the present embodiment provides a water area mobile device 300, and the water area mobile device 300 may be various water area vehicles such as a commercial ship, a passenger ship, a yacht, a fishing boat, a sailing boat, a civil ship, and the like. The water movable apparatus 300 includes a hull 200 and an outboard motor 100.

The hull 200 is capable of providing a certain buoyancy force to enable the water mobile device 300 to float on the water surface and to carry a person or object. The hull 200 has an interior space 201, the interior space 201 being adapted to be able to accommodate persons and things or other structures. The specific structure of the hull 200 may be set as desired. The outboard motor 100 is mounted to the hull 200 for providing propulsion to propel the water moving equipment 300 through the water.

Referring to fig. 2, the outboard motor 100 in this embodiment includes a frame 10, a power motor 21, a driver 22, a transmission mechanism 30, a propeller 23, and a heat dissipation mechanism 40. The housing 10 defines a receiving chamber 11. The power motor 21, the driver 22 and the transmission mechanism 30 are all arranged in the accommodating cavity 11, the driver 22 is electrically connected with the power motor 21, one end of the transmission mechanism 30 is directly connected with the output end of the power motor 21, the other end of the transmission mechanism 30 extends out of the frame 10, and one end of the transmission mechanism 30 extending out of the frame 10 is connected with the propeller 23 so as to transmit the rotation torque of the power motor 21 to the propeller 23. The heat dissipation mechanism 40 is provided to the frame 10 and serves to cool the power motor 21, the driver 22, and the transmission mechanism 30.

The power motor 21, the driver 22 and the transmission mechanism 30 are all arranged in the accommodating cavity 11, the driver 22 is electrically connected with the power motor 21, one end of the transmission mechanism 30 is directly connected with the output end of the power motor 21, so that the power motor 21, the driver 22 and the transmission mechanism 30 are integrated together, the power motor 21, the driver 22 and the transmission mechanism 30 are not required to be connected through an external structure, peripheral accessories such as an alternating current three-phase line between the power motor 21 and the driver 22 and a mounting bracket are not required to be connected, the production cost of the outboard motor 100 is reduced, the energy transmission path of the alternating current three-phase line is reduced, the loss of energy on the transmission path is reduced, and the energy utilization efficiency is improved.

Meanwhile, the power motor 21, the driver 22 and the transmission mechanism 30 are all arranged in the accommodating cavity 11, so that the heat dissipation mechanism 40 can cool the power motor 21, the driver 22 and the transmission mechanism 30 at the same time, a complex externally-hung cooling mechanism is not required, the cooling of the power motor 21, the driver 22 and the transmission mechanism 30 in the frame 10 can be realized by using a simple heat dissipation mechanism 40, the cooling efficiency of the outboard motor 100 is improved, the quality of the heat dissipation mechanism 40 is reduced, the weight and noise vibration of the outboard motor 100 are further reduced, and the user experience of the outboard motor 100 is improved.

It will be appreciated that the housing chamber 11 may be formed by a single chamber, i.e. the power motor 21, the driver 22 and the transmission mechanism 30 are housed together in a single chamber. The accommodating cavity 11 may be formed by a plurality of adjacent cavities, that is, the power motor 21, the driver 22 and the transmission mechanism 30 may be dispersed and accommodated in the plurality of cavities of the accommodating cavity 11. The power motor 21, the driver 22 and the transmission mechanism 30 are accommodated in the accommodating cavity 11, so that the power motor 21, the driver 22 and the transmission mechanism 30 are adjacent to each other, and the power motor 21, the driver 22 and the transmission mechanism 30 are convenient to assemble and cool in a radiating manner.

In this embodiment, the frame 10 may be a casing of the outboard motor 100, and serves to rigidly support the outboard motor 100 as a whole. The entire outboard motor 100 is mounted to the hull 200 by directly or indirectly connecting the frame 10 to the hull 200. The layout of the power motor 21, the driver 22 and the transmission mechanism 30 on the frame 10 may be various, and is not limited to the structure of the embodiment shown in fig. 2, and any structure in which the power motor 21, the driver 22 and the transmission mechanism 30 are adjacent to each other and are arranged in the accommodating cavity 11 of the frame 10 in a concentrated manner is an embodiment of the present application.

In some embodiments, as shown in fig. 3, the heat dissipation mechanism 40 includes a built-in heat dissipation component 41, where the built-in heat dissipation component 41 is disposed on the rack 10, and the built-in heat dissipation component 41 is used for dissipating heat of the rack 10, and the rack 10 can absorb heat of the power motor 21, the driver 22 and the transmission mechanism 30.

The built-in heat dissipation component 41 can dissipate heat of the rack 10, the rack 10 can absorb heat of the power motor 21, the driver 22 and the transmission mechanism 30, so that the temperature of the rack 10 can be exchanged to the external environment through the built-in heat dissipation component 41 relatively quickly, the rack 10 can absorb heat of the power motor 21, the driver 22 and the transmission mechanism 30 relatively quickly, and cooling efficiency of the power motor 21, the driver 22 and the transmission mechanism 30 is improved. In some embodiments, the built-in heat dissipation assembly 41 may be disposed within the frame 10, and may also simplify the support structure outside the frame 10, thereby further reducing the weight and manufacturing cost of the outboard motor 100.

In some embodiments, as shown in fig. 2, the rack 10 is provided with a first partition plate 51, the first partition plate 51 divides the accommodating cavity 11 into a first electric control cavity 111 and a first oil cooling cavity 112, the power motor 21 and the transmission mechanism 30 are accommodated in the first oil cooling cavity 112, and the driver 22 is accommodated in the first electric control cavity 111.

When the power motor 21 and the transmission mechanism 30 operate in the first oil cooling cavity 112, the first oil cooling cavity 112 is often filled with cooling medium, and the first partition plate 51 can prevent the operating medium in the first oil cooling cavity 112 from entering the first electric control cavity 111 and damaging the driver 22, so that the service life of the driver 22 is prolonged. The first partition plate 51 can also ensure the sealing performance of the first oil cooling chamber 112 and the first electric control chamber 111, and when one of the first oil cooling chamber 112 and the first electric control chamber 111 is subjected to accidental water inflow, the other one can be ensured not to be influenced, so that the service lives of the power motor 21 and the driver 22 can be prolonged, and maintenance can be conveniently performed on any one of the two. In addition, the first oil cooling chamber 112 and the first electric control chamber 111 also ensure that the power motor 21 and the driver 22 are firmly installed in the wave pressing portion 14, respectively.

In some embodiments, as shown in fig. 2, the outboard motor 100 further includes a first cable 25, the first cable 25 connecting the power motor 21 and the driver 22, the first bulkhead 51 being provided with a first threading hole 511 and a first harness seal 72 closely fitted to an inner peripheral side wall of the first threading hole 511, the first cable 25 passing through the first threading hole 511 and closely fitted to the first harness seal 72. The first cable 25 can facilitate the driver 22 to accurately and efficiently control the power motor 21, thereby adjusting the output power of the power motor 21; the cooperation of the first threading hole 511 and the first thread bundle seal 72 can facilitate the connection of the first cable 25 between the power motor 21 and the driver 22 and can still ensure the insulation between the first electric control chamber 111 and the first oil cooling chamber 112. Of course, in other embodiments of the present application, the first cable 25 may not be additionally provided, and the control between the driver 22 and the power motor 21 may be implemented through a wireless network without specific limitation.

Specifically, the first thread bundle seal 72 of the present embodiment may be provided as a seal structure such as an oil seal or a seal ring.

In some embodiments, as shown in fig. 2, the first oil cooling chamber 112 contains a first cooling oil 61, the first cooling oil 61 is used for heat exchange with the power motor 21 and at least part of the transmission mechanism 30, the first cooling oil 61 is also used for heat exchange with the frame 10 to cool the power motor 21 and at least part of the transmission mechanism 30, and the first cooling oil 61 is also used for reducing the rotation resistance of the power motor 21 and the transmission resistance of the transmission mechanism 30.

Since the first oil cooling chamber 112 and the first electric control chamber 111 are isolated by the first partition plate 51, the first cooling oil 61 does not enter the first electric control chamber 111 and damage the driver 22. After the first cooling oil 61 is additionally arranged in the first oil cooling cavity 112, the first cooling oil 61 can exchange heat with the power motor 21 and at least part of the transmission mechanism 30, then heat transferred by the power motor 21 and at least part of the transmission mechanism 30 is transferred to the frame 10, and the frame 10 and the external environment can be subjected to heat exchange to achieve a cooling effect on the first cooling oil 61, so that the transfer efficiency of the heat transferred by the power motor 21 and at least part of the transmission mechanism 30 to the frame 10 is improved, and the cooling efficiency of the power motor 21 and at least part of the transmission mechanism 30 is further improved. In addition, the first cooling oil 61 can further reduce the rotational resistance of the power motor 21 and the transmission mechanism 30, and can facilitate replacement and upgrade of the power motor 21 to a higher power motor to improve the propulsion performance of the outboard motor 100.

In some embodiments, as shown in fig. 4, a portion of the first oil cooling chamber 112 is positioned under water, and the portion of the first oil cooling chamber 112 positioned under water is configured to receive the first cooling oil 61, and the built-in heat dissipation assembly 41 includes a circulation assembly 411, where the circulation assembly 411 is configured to extract a portion of the first cooling oil 61 for delivery to the power motor 21 and at least a portion of the transmission mechanism 30.

After a part of the first oil cooling cavity 112 is placed under water, the first cooling oil 61 can exchange heat with water flow in the water area through the frame 10, and compared with the first cooling oil 61, the heat exchange efficiency between the frame 10 and air is higher. The circulating assembly 411 can convey the low-temperature first cooling oil 61 to the power motor 21 and at least part of the transmission mechanism 30 for heat exchange, the first cooling oil 61 after heat exchange and temperature rise can return to the first oil cooling cavity 112 under the water under the action of self gravity or under the action of the circulating assembly 411, and then the first cooling oil 61 is cooled into the low-temperature first cooling oil 61 through the heat exchange between the machine frame 10 and water flow.

In some embodiments, as shown in FIG. 4, the circulation assembly 411 includes a circulation pump 4111, a return pipe 4112, and a first cooling pipe 4113, one end of the return pipe 4112 is submerged by the first cooling oil 61, the other end of the return pipe 4112 communicates with the circulation pump 4111, one end of the first cooling pipe 4113 faces the power motor 21 and at least part of the transmission mechanism 30, the other end of the first cooling pipe 4113 communicates with the circulation pump 4111, and the circulation pump 4111 is configured to pump the first cooling oil 61 through the return pipe 4112 and deliver the first cooling oil 61 to the power motor 21 and at least part of the transmission mechanism 30 through the first cooling pipe 4113.

The circulation pump 4111 can improve the flow efficiency of the first cooling oil 61, thereby further improving the heat radiation efficiency of the power motor 21 and at least part of the transmission mechanism 30. In addition, the first cooling oil 61 can move along the transmission path of the power motor 21 and part of the transmission mechanism 30, and uniformly contact with the output shaft 213 of the power motor 21 and part of the transmission mechanism 30, and simultaneously plays a good role in lubrication and heat absorption.

In addition, in the present embodiment, as shown in fig. 4, filters 4114 are provided in the first cooling pipe 4113 and the return pipe 4112, respectively, to filter the first cooling oil 61 and prevent it from wearing the power motor 21 and the transmission mechanism 30.

In some embodiments, as shown in fig. 4, the built-in heat dissipation assembly 41 further includes a spray member 412, the spray member 412 being coupled to the circulation assembly 411, the spray member 412 being configured to receive the extracted first cooling oil 61 from the circulation assembly 411 and spray the extracted first cooling oil 61 toward the power motor 21 and at least a portion of the transmission mechanism 30.

The spraying piece 412 can spray the low-temperature first cooling oil 61 to the power motor 21 and at least part of the transmission mechanism 30, so as to increase the contact area between the power motor 21 and at least part of the transmission mechanism 30 and the first cooling oil 61, thereby further increasing the heat dissipation efficiency.

In some embodiments, as shown in fig. 5, the built-in heat dissipating assembly 41 includes a water cooling pipe 413, the water cooling pipe 413 is built between an outer surface and an inner surface of the rack 10, the water cooling pipe 413 is used for introducing cooling water, and the power motor 21, the driver 22 and the transmission mechanism 30 can be heat-exchanged with the rack 10, and the rack 10 can be heat-exchanged with the cooling water.

The heat of the power motor 21 and the transmission mechanism 30 can be exchanged with the cooling water in the water cooling pipe 413 through the housing 10, so that the cooling efficiency of the power motor 21, the driver 22 and the transmission mechanism 30 can be improved. In addition, since the water cooling pipe 413 is built in the frame 10, a mounting bracket or the like of the water cooling pipe 413 can be omitted, and the overall weight of the built-in radiator module 41 and the weight of the outboard motor 100 can be reduced.

In some embodiments, as shown in fig. 5, the built-in heat dissipating assembly 41 further includes a water tank 414, the water tank 414 has a water outlet 4141 and a water return port 4142, one end of the water cooling pipe 413 is communicated with the water outlet 4141, and the other end of the water cooling pipe 413 is communicated with the water return port 4142, so that the cooling water after heat exchange with the rack 10 can flow back into the water tank 414, and the cooling water in the water tank 414 can flow into the rack 10 to heat exchange with the rack 10; alternatively, one end of the water cooling pipe 413 is used for introducing cooling water in the water area, and the other end of the water cooling pipe 413 is used for guiding the cooling water after heat exchange with the rack 10 into the water area. Better heat exchange effect can be achieved through the water tank 414 or directly through cooling water in the water area.

In some embodiments, as shown in fig. 2, the power motor 21 includes a stator 211, a rotor 212, and an output shaft 213, the rotor 212 is mated with the stator 211, one end of the output shaft 213 is connected to the rotor 212, the other end is connected to the transmission 30, and the first cooling oil 61 is further used to cool the rotor 212 and/or the stator 211.

The first cooling oil 61 can reduce the working temperatures of the rotor 212 and the stator 211, and even if the working powers of the stator 211 and the rotor 212 are higher, the heat generated by the first cooling oil 61 is reduced, so that the power motor 21 can adopt a motor with higher power, and the propulsion efficiency of the outboard motor 100 is improved.

In some embodiments, as shown in fig. 2 and 3, the heat dissipation mechanism 40 further includes an external heat dissipation assembly 42, the external heat dissipation assembly 42 being configured to exchange heat from the rack 10 to an external environment.

It will be appreciated that the heat exchange efficiency of the frame 10 with the external environment may be improved by the external heat dissipating assembly 42, thereby further improving the heat dissipating efficiency of the outboard motor 100. Of course, in the embodiment of the present application, the heat dissipating mechanism 40 may be provided with only the internal heat dissipating component 41, only the external heat dissipating component 42, or both the internal heat dissipating component 41 and the external heat dissipating component 42.

In some embodiments, as shown in fig. 2 and 3, the heat dissipation mechanism 40 includes an external heat dissipation component 42, where the external heat dissipation component 42 is disposed on an outer surface of the rack 10, and the external heat dissipation component 42 is configured to absorb heat of the rack 10 and exchange heat with the outside.

The external heat dissipation assembly 42 can improve the heat exchange efficiency between the frame 10 and the outside, so that the heat of the power motor 21, the driver 22 and the transmission mechanism 30 can be transferred to the frame 10 more quickly. The external heat dissipation assembly 42 can facilitate maintenance of the outboard motor 100, reduce the volume and weight of the frame 10, and improve the convenience of disassembly and assembly of the outboard motor 100.

In some embodiments, as shown in fig. 2, the rack 10 has a water portion 12, the water portion 12 is used for contacting air, the external heat dissipation assembly 42 is disposed on an outer surface of the water portion 12, the power motor 21, the driver 22 and at least part of the transmission mechanism 30 are disposed in the accommodating cavity 11 corresponding to the water portion 12, the power motor 21, the driver 22 and at least part of the transmission mechanism 30 can exchange heat with the rack 10, the rack 10 can transfer heat to the external heat dissipation assembly 42, and the external heat dissipation assembly 42 is also used for air flow heat exchange, so as to cool the power motor 21, the driver 22 and at least part of the transmission mechanism 30.

In some embodiments, as shown in fig. 2, the external heat dissipating assembly 42 includes a plurality of heat dissipating fins 421, the plurality of heat dissipating fins 421 are disposed side by side on the water portion 12, and the extending direction of the first diversion trench 422 between the adjacent heat dissipating fins 421 is parallel to the pushing direction of the propeller 23.

The extending direction of the first diversion trench 422 among the plurality of cooling fins 421 is parallel to the propelling direction of the propeller 23, so that the air resistance suffered by the cooling fins 421 can be reduced, the propelling performance of the propeller is ensured while the heat dissipation performance of the cooling fins 421 is ensured, the flowing speed of air flow from the first diversion trench 422 can be improved, and the heat dissipation speed of the cooling fins 421 is further improved. At the same time, the heat sink 421 is also lighter in weight, thereby reducing the weight impact on the propeller and reducing costs.

In some embodiments, as shown in fig. 6, the frame 10 has an underwater portion 13, the underwater portion 13 being configured to contact a water flow in the water area, the power motor 21 and at least a portion of the transmission mechanism 30 being disposed within the underwater portion 13, the power motor 21 and at least a portion of the transmission mechanism 30 being in thermal communication with the underwater portion 13.

The underwater part 13 can exchange heat with water flow in a water area, and the power motor 21 and at least part of the transmission mechanism 30 can exchange heat with the underwater part 13 through air or cooling medium, so that the power motor 21 and at least part of the transmission mechanism 30 can realize heat dissipation and temperature reduction through heat exchange with the water flow, and therefore the heat dissipation requirement of heating structures such as the power motor 21 can be met by using the heat dissipation mechanism 40 with limited heat dissipation capacity, and the cost of the heat dissipation mechanism 40 is reduced.

In some embodiments, as shown in fig. 6, the external heat dissipating assembly 42 is disposed on an outer surface of the underwater portion 13 and is configured to exchange heat with a water stream, and the external heat dissipating assembly 42 is further configured to exchange heat with the underwater portion 13.

The power motor 21, the driver 22 and at least part of the transmission mechanism 30 exchange heat with the underwater portion 13 through air or cooling oil and other media in the underwater portion 13, and the external heat dissipation assembly 42 exchanges heat with the underwater portion 13 and water flow, so that the external heat dissipation assembly 42 can improve heat exchange efficiency between the underwater portion 13 and water flow, and further improve heat exchange efficiency of the power motor 21, the driver 22 and at least part of the transmission mechanism 30 exchanging heat with the underwater portion 13.

In some embodiments, as shown in fig. 7, the external heat dissipating assembly 42 includes a plurality of heat dissipating fins 421, the plurality of heat dissipating fins 421 are disposed side by side on the underwater portion 13, and the extending direction of the first diversion trench 422 between the adjacent heat dissipating fins 421 is parallel to the advancing direction of the propeller 23.

The extending direction of the first diversion trench 422 among the plurality of cooling fins 421 is parallel to the propelling direction of the propeller 23, so that the water flow resistance of the cooling fins 421 can be reduced, the propelling performance of the propeller is ensured while the heat dissipation performance of the cooling fins 421 is ensured, the flowing speed of water flow from the first diversion trench 422 can be improved, and the heat dissipation speed of the cooling fins 421 is further improved. At the same time, the heat sink 421 is also lighter in weight, thereby reducing the weight impact on the propeller and reducing costs.

In some embodiments, as shown in fig. 7, the external heat sink assembly 42 includes a plurality of heat sink ribs 423, where the plurality of heat sink ribs 423 surround the periphery of the frame 10 and correspond to the power motor 21, the driver 22, and at least a portion of the transmission 30.

The power motor 21, the driver 22 and at least part of the transmission mechanism 30 can exchange heat through media such as air or cooling oil in the rack 10, and the rack 10 exchanges heat with a plurality of radiating ribs 423 of the external radiating assembly 42, so that heat of the power motor 21, the driver 22 and at least part of the transmission mechanism 30 is transferred to the radiating ribs 423, and the radiating ribs 423 can transfer heat to air or water flow of the external environment, so that a plurality of radiating ribs 423 surrounding the periphery of the rack 10 can also realize a radiating effect, ensure the propulsion performance of the propeller while ensuring the radiating performance of the radiating fins 421, have lighter weight, and further reduce the weight influence on the propeller and reduce the cost.

In addition, in this embodiment, as shown in fig. 7, the plurality of heat dissipating ribs 423 are distributed at intervals along the vertical direction and define the second diversion trench 424, so that the extending direction of the second diversion trench 424 is parallel to the pushing direction of the propeller 23, which can prevent the heat dissipating ribs 423 from interfering with the pushing of the propeller 23, and improve the flow speed of the water flow from the second diversion trench 424, and further improve the heat dissipating speed of the heat dissipating ribs 423.

In some embodiments, as shown in fig. 7, the side of the rack 10 is provided with a groove 15, and a portion of the heat dissipating rib 423 is located in the groove 15. The grooves 15 can increase the heat dissipation area and the heat conduction performance of the heat dissipation ribs 423.

In some embodiments, as shown in fig. 5, the frame 10 is provided with a wave pressing part 14, the wave pressing part 14 is provided with a containing cavity 141, the containing cavity 141 is communicated with the containing cavity 11, the wave pressing part 14 is used for contacting with water flow in a water area, the driver 22 is fixed in the containing cavity 141 and is electrically connected with the power motor 21 to control the power motor 21 to operate, and the driver 22 exchanges heat with the water flow through the wave pressing part 14.

When the propeller runs, the frame 10 stretches into water, the wave pressing part 14 is positioned at the water surface P of the water area, and water flow of the water area can generate heat exchange for the wave pressing part 14 and further perform heat exchange with the driver 22 positioned in the wave pressing part 14, so that heat generated by the driver 22 in the running process of the control motor is effectively reduced, and the heat dissipation effect of the driving structure of the propeller is improved. It will be appreciated that the wave pressing portion 14 can press the water wave stirred up by the propeller 23, so as to reduce the wave energy, i.e. reduce the energy consumption, and make the propulsion efficiency of the propeller higher. The heat exchange is realized through the wave pressing part 14 positioned at the water surface of the water area, the water flow rate at the wave pressing part 14 is high, the water flow rapidly dissipates the heat of the wave pressing part 14, the heat exchange efficiency of the driver 22 is high, a cooling system such as a water pump or an oil pump is not required to be additionally arranged, the production cost is reduced, the volume and the weight of the propeller are reduced on the premise that the heat dissipation effect of the driver 22 is ensured, and the user experience of the propeller is improved. In addition, compared with the existing solid wave pressing structure, the change of the first accommodating cavity 11 formed in the wave pressing part 14 in the embodiment is small, so that the wave pressing part 14 can be ensured to press the water wave stirred by the propeller 23, the energy waste is reduced, the heat dissipation effect of the driver 22 can be further improved, and the propulsion efficiency of the propeller is improved. Therefore, the propeller has the advantages of simple installation and high heat dissipation efficiency, and can not influence the performance of the propeller, thereby taking both the propulsion performance and the heat dissipation performance into consideration.

In some embodiments, as shown in fig. 5, a cooling flow channel 142 is formed on a side of the wave pressing portion 14 near the water area, the cooling flow channel 142 is isolated from the accommodating cavity 141, and the cooling flow channel 142 is used for water flow flowing into the water area, so that the wave pressing portion 14 exchanges heat with the water flow.

Because the outboard motor 100 is usually located in a water area during operation, the water flow in the water area can be effectively utilized through the cooling flow channel 142, so that the wave pressing portion 14 and the water flow can exchange heat conveniently, heat generated by the power motor 21 and the driver 22 can be more efficiently transferred to the water area, and the heat dissipation effect of the power motor 21 and the driver 22 is improved.

In some embodiments, as shown in fig. 5, the wave pressing part 14 is provided with a second cooling tube 143 located in the receiving cavity 141, the second cooling tube 143 is in contact with the driver 22, the second cooling tube 143 is used for thermal coupling with the driver 22, and the second cooling tube 143 is communicated with the cooling flow passage 142 to transmit the water flow conveyed by the cooling flow passage 142.

It can be appreciated that the water flow conveyed in the cooling flow channel 142 can exchange heat with the second cooling pipe 143, and the driver 22 can exchange heat with the second cooling pipe 143, so that the heat exchange between the driver 22 and the water flow is realized, the heat exchange efficiency of the driver 22 is improved, the rated power of the driver 22 is improved, and the propulsion efficiency of the outboard motor 100 is improved.

In some embodiments, a plurality of cooling flow channels 142 are provided, and a plurality of cooling flow channels 142 are distributed side by side.

The plurality of cooling flow passages 142 can have a uniform cooling effect on the side part of the wave pressing part 14, and further can perform a uniform heat exchange effect with each part of the power motor 21 and the driver 22, so that the problem that the local temperature of the power motor 21 and the driver 22 is too high is avoided, and the temperature consistency of the power motor 21 and the driver 22 is better.

In some embodiments, as shown in fig. 2 and 5, the driver 22 is located in the receiving cavity 141 away from the inner surface of the propeller 23, or the driver 22 is located in the receiving cavity 141 near the inner surface of the propeller 23.

The mounting position of the driver 22 in the receiving cavity 141 can be adjusted according to the arrangement of the heat radiation mechanism 40 at the wave pressing portion 14.

As shown in fig. 5, when the driver 22 is located on the inner surface of the accommodating cavity 141 far away from the propeller 23, when the ship body is moving, the water wave at the tail of the ship body is lifted and then showered from top to bottom on the side wall of the wave pressing part 14 away from the propeller 23, so that the heat exchange of the driver 22 is realized through the heat exchange between the water wave and the wave pressing part 14.

As shown in fig. 2, when the driver 22 is located in the accommodating cavity 141 near the inner surface of the propeller 23, the wave pressing portion 14 is located at the water surface, and the wave pressing portion 14 is immersed in the water near the side wall of the propeller 23, so that heat exchange with the wave pressing portion 14 and further heat exchange with the driver 22 can be performed by the water flow in the water.

In some embodiments, as shown in fig. 2 and 3, the frame 10 includes a water section 12, the water section 12 defining a water receiving cavity 121, and the power motor 21, the driver 22, and a portion of the transmission 30 are all received in the water receiving cavity 121.

Placing the power battery, the driver 22 and part of the transmission mechanism 30 in the water accommodating chamber 121 can improve the convenience of maintenance, disassembly and assembly. Meanwhile, the water portion 12 may be additionally provided with an external heat dissipation assembly 42 with higher water flow heat exchange efficiency than that of the water area, so as to improve the heat dissipation efficiency of the power motor 21, the driver 22 and at least part of the transmission mechanism 30, and improve the rated efficiency of the power motor 21 and the driver 22, so as to improve the propulsion performance and the heat dissipation performance of the outboard motor 100.

In some embodiments, as shown in fig. 3, the transmission mechanism 30 includes an upper speed changing assembly 31, where the upper speed changing assembly 31 is accommodated in the water accommodating cavity 121, and the upper speed changing assembly 31 is used for converting the rotation speed of the power motor 21 to the propeller 23.

In some embodiments, as shown in FIG. 3, the upper gearbox assembly 31 includes two intermeshing upper gearbox teeth 311, one upper gearbox tooth 311 connected to the output shaft 213 of the power motor 21, and the other upper gearbox tooth 311 connected to the propeller 23 via a central drive shaft 32.

Through the meshing of the first gear and the second gear, a speed change effect can be achieved on the rotation speed of the output shaft 213 transmitted to the transmission shaft, and the transmission shaft is convenient for transmitting the power of the motor positioned in the upper accommodating cavity 11 to the underwater propeller 23.

In some embodiments, as shown in fig. 8, the power motor 21 includes a power output end 215 for outputting torque and a fixed end 214 spaced from the power output end 215, and the driver 22 is disposed on a side of the fixed end 214 facing away from the power output end 215.

Through the above structure arrangement, the dimension of the water portion 12 in the second direction, which is the direction perpendicular to the axial direction of the output shaft 213 of the power motor 21, can be reduced, so that the outboard motor 100 can be installed in an installation environment having a dimension requirement on the outboard motor in the second direction, and the application range of the outboard motor 100 can be improved.

In some embodiments, as shown in fig. 9, the power motor 21 includes a power output end 215 for outputting torque and a fixed end 214 spaced apart from the power output end 215, an outer peripheral side of the power motor 21 is formed between the fixed end 214 and the power output end 215, and the driver 22 is provided at the outer peripheral side.

Through the above structure arrangement, the dimension of the water part 12 in the axial direction of the output shaft 213 of the power motor 21 can be reduced, so that the outboard motor 100 can be installed in an installation environment with dimension requirements on the outboard motor in the axial direction of the output shaft 213, and the application range of the outboard motor 100 is improved.

In some embodiments, as shown in fig. 8 and 9, the frame 10 includes a water section 12, the water section 12 includes a first mounting portion 122 and a second mounting portion 123, the second mounting portion 123 is fixed side by side with the first mounting portion 122, the first mounting portion 122 defines a first mounting cavity 1221, the second mounting portion 123 defines a second mounting cavity 1231, the driver 22 is received in the first mounting cavity 1221, and the power motor 21 and a portion of the transmission 30 are received in the second mounting cavity 1231.

The power motor 21, a part of the transmission mechanism 30 and the driver 22 are respectively arranged in the first installation cavity 1221 and the second installation cavity 1231, so that the protection effect on the power motor 21, a part of the transmission mechanism 30 and the driver 22 can be further improved, the power motor 21, the transmission mechanism 30 and the driver 22 are prevented from being damaged by collision, and the service life of the power motor, the transmission mechanism 30 and the driver 22 is prolonged.

In some embodiments, as shown in fig. 8 and 9, the outboard motor 100 further includes a heat dissipating structure 124, the heat dissipating structure 124 being secured between the first mounting portion 122 and the second mounting portion 123 and thermally coupled to the first mounting portion 122 and the second mounting portion 123.

The heat dissipation structure 124 can be thermally coupled to the first installation portion 122 and the second installation portion 123, the power motor 21 can exchange heat with the wall body of the first installation portion 122 through air or cooling oil, the first installation portion 122 can exchange heat with the external environment through the heat dissipation structure 124, the driver 22 can exchange heat with the wall body of the second installation portion 123 through air or cooling pipes, and the second installation portion 123 can exchange heat with the external environment through the heat dissipation structure 124, so that heat dissipation to the first installation portion 122 and the second installation portion 123 through one heat dissipation structure 124 is achieved.

In some embodiments, as shown in fig. 3, the frame 10 includes a submerged portion 13, the submerged portion 13 defining a submerged receiving cavity 131, the submerged portion 13 being configured to be positioned within the water, the propeller 23 being positioned at the submerged portion 13, and at least a portion of the transmission 30 being positioned within the submerged receiving cavity 131.

The propeller 23 can be driven by power through the transmission mechanism 30 arranged in the underwater accommodating cavity 131, so that the propeller 23 can operate and provide propulsion power for the outboard motor 100.

In some embodiments, as shown in FIG. 3, the subsea containment chamber 131 houses a second cooling fluid 62, the second cooling fluid 62 being configured to cool at least a portion of the transmission 30.

The second cooling oil 62 can exchange heat with the water flow in the water area through the frame 10, so that the second cooling oil 62 can be cooled relatively rapidly, and then the low-temperature second cooling oil 62 is formed and exchanges heat with the transmission mechanism 30, and the heat exchange efficiency of at least one part of the transmission mechanism 30 and the water flow in the water area is improved.

In some embodiments, as shown in fig. 3, the frame 10 further includes a water portion 12, the water portion 12 defines a water accommodating cavity 121, the power motor 21 and the driver 22 are located in the water accommodating cavity 121, the transmission mechanism 30 includes a lower speed changing assembly 33 and a middle transmission shaft 32, the lower speed changing assembly 33 is located in the underwater accommodating cavity 131, one end of the middle transmission shaft 32 is connected with an output end of the power motor 21, one end of the lower speed changing assembly 33 is connected with the other end of the middle transmission shaft 32, and the other end of the lower speed changing assembly 33 is connected with the propeller 23.

The power of the motor can be conveniently transmitted to the underwater accommodating cavity 131 through the middle transmission shaft 32, and then the power is transmitted to the propeller 23 through other structures of the first transmission mechanism 30, so that different transmission structures of the middle transmission shaft 32 and different propellers 23 can be adjusted according to transmission requirements of different propellers 23, and the application range of the propeller is improved.

Because the speed change structure is prone to generate heat during the process of converting the torque rotation rate, in this embodiment, after the lower speed change assembly 33 is disposed in the underwater accommodating cavity 131, the heat exchange efficiency between the underwater portion 13 and the water flow is higher, so that the heat exchange efficiency between the underwater portion 13 and the second cooling oil 62 in the underwater accommodating cavity 131 is higher, and further, the heat exchange efficiency between the lower speed change assembly 33 and the second cooling oil 62 is improved, and further, the speed change efficiency of the first underwater speed change assembly is improved, so that the propulsion performance of the propeller 23 is further improved.

Specifically, in the present embodiment, as shown in fig. 3, the lower speed changing assembly 33 includes two intermeshing lower speed changing teeth 331, one lower speed changing tooth 331 is connected to the output shaft 213 of the power motor 21, and the other lower speed changing tooth 331 is connected to the center drive shaft 32.

In some embodiments, as shown in fig. 3, the outboard engine 100 further includes a second partition plate 52, where the second partition plate 52 divides the water-borne housing cavity 121 into a second electric control cavity 1211 and a second oil cooling cavity 1212, the second oil cooling cavity 1212 is in communication with the underwater housing cavity 131, the power motor 21 and a portion of the transmission 30 are disposed in the second oil cooling cavity 1212, the second oil cooling cavity 1212 and the underwater housing cavity 131 house a third cooling oil 63, and the third cooling oil 63 is used to cool the power motor 21 and the transmission 30.

The second partition plate 52 can prevent the third cooling oil 63 in the first oil cooling chamber 112 from entering the second electric control chamber 1211 and damaging the driver 22, thereby improving the service life of the driver 22. The second partition plate 52 can also ensure the sealing performance of the second oil cooling chamber 1212 and the second electric control chamber 1211, and when one of the second oil cooling chamber 1212 and the second electric control chamber 1211 is subjected to accidental water inflow, the other can be prevented from being influenced, so that the service lives of the motor and the driver 22 can be prolonged, and maintenance can be facilitated for any one. In addition, the second oil cooling cavity 1212 and the second electric control cavity 1211 also ensure that the power motor 21 and the driver 22 are stably mounted in the water portion 12, respectively, so as to avoid collision.

In addition, since the second oil cooling cavity 1212 is communicated with the underwater accommodating cavity 131, the water flow passing through the water area is convenient to exchange heat with the rack 10, and the third cooling oil 63 passing through the rack 10 exchanges heat with the underwater accommodating cavity 131, so that the cooling efficiency of the third cooling oil 63 is improved, and the heat exchange efficiency of the third cooling oil 63 to the power motor 21 and the transmission mechanism 30 is improved.

In some embodiments, as shown in fig. 3, the outboard motor 100 further includes a second cable 26, the second cable 26 connecting the power motor 21 and the driver 22, the second bulkhead 52 being provided with a second wire passing hole 521 and a second wire harness seal 73 closely fitted to an inner peripheral side wall of the second wire passing hole 521, the second cable 26 passing through the second wire passing hole 521 and closely fitted to the second wire harness seal 73. The second cable 26 can facilitate the driver 22 to accurately and efficiently control the power motor 21, thereby adjusting the output power of the power motor 21; the cooperation of the second wire harness sealing member 73 and the second wire harness 521 can facilitate connection of the second cable 26 between the power motor 21 and the driver 22, and can still ensure isolation between the second electric control chamber 1211 and the second oil cooling chamber 1212. Of course, in other embodiments of the present application, the second cable 26 may not be additionally provided, and the control between the driver 22 and the power motor 21 may be implemented through a wireless network, without being limited in detail.

Specifically, the second harness seal 73 of the present embodiment may be provided as a seal structure such as an oil seal or a seal ring.

In some embodiments, as shown in fig. 3, the submerged portion 13 includes an extension housing 132 and a submerged deflector 133. The extension housing 132 is connected to the water section 12, and the center drive shaft 32 is disposed within the extension housing 132. The underwater guiding part 133 is connected with the extension case 132, the underwater guiding part 133 is provided with an underwater cavity 1331, and the lower speed changing assembly 33 is accommodated in the underwater cavity 1331.

The extension shell 132 defines an accommodating space 1321, the accommodating space 1321 is communicated with the underwater cavity 1331 and the water accommodating cavity 121, the transmission shaft 32 in the middle transmission shaft 32 penetrates through the accommodating space 1321, the underwater cavity 1331 of the underwater diversion part 133 can provide an accommodating space for the underlying speed change assembly 33, and the underwater diversion part 133 can conduct diversion to the underwater part 13, so that resistance of the propeller 23 when the propulsion frame 10 moves is reduced.

In addition, in this embodiment, the accommodating space of the extension case 132 may be communicated with the water accommodating cavity 121, so that the power motor 21, the middle-set transmission shaft 32 and the lower speed changing assembly 33 may be synchronously cooled by the cooling medium in the water accommodating cavity 121, and the heat exchange efficiency of the power motor 21, the middle-set transmission shaft 32 and the lower speed changing assembly 33 may be improved by heat exchange between the water flow in the water area and the frame 10. The accommodation space of the extension case 132 can be isolated from the water accommodating cavity 121, so that when water is accidentally introduced into the underwater cavity 1331, water is ensured not to enter the water accommodating cavity 121 from the underwater cavity 1331, and thus the use reliability of the propeller is improved.

Further, in the present embodiment, the accommodation space of the extension case 132 defines the underwater accommodating chamber 131 together with the underwater chamber 1331.

In some embodiments, as shown in fig. 3, the outboard motor 100 further includes a tail shaft 24, one end of the tail shaft 24 is connected to the transmission mechanism 30, the underwater portion 13 is provided with a tail shaft hole 134, a tail shaft seal 71 is sealingly engaged with an inner peripheral side wall of the tail shaft hole 134, the tail shaft 24 passes through the tail shaft hole 134 and is sealingly engaged with the tail shaft seal 71, and the tail shaft 24 is connected to the propeller 23.

When the power motor 21 transmits power to the transmission mechanism 30, the transmission mechanism 30 integrally rotates, and then the power is transmitted to the tail shaft 24, so that the rotating torque is transmitted to the tail shaft 24, the rotation of the propeller 23 is realized, and the propeller 23 can push water when rotating in a water area, so that the water can push the propeller. The tail shaft hole 134 can be convenient for the drive mechanism 30 to be connected with the tail shaft 24, thereby realizing the rotation propulsion of the propeller 23, and simultaneously, the tail shaft sealing piece 71 can prevent water in a water area from entering the underwater accommodating cavity 131 through the tail shaft hole 134, thereby improving the sealing performance of the underwater part 13, preventing the second cooling oil 62 from leaking, avoiding water from corroding the drive mechanism 30, and prolonging the service life of the drive mechanism 30.

Specifically, the tail shaft seal 71 of the present embodiment may be provided as a seal structure such as an oil seal or a seal ring.

In some embodiments, as shown in fig. 6, the power motor 21, the driver 22, and the transmission mechanism 30 are all located in the underwater accommodating chamber 131.

By placing the power motor 21, the driver 22 and the transmission mechanism 30 in the underwater accommodating chamber 131, the transmission stroke of the transmission mechanism 30 can be reduced, and the torque transmission efficiency of the transmission mechanism 30 can be improved. Meanwhile, the water flow temperature of the water area is generally lower than the air temperature, and the water flow exchanges heat with the underwater part 13, so that a good heat dissipation effect can be ensured to be provided for the power motor 21, the driver 22 and the transmission mechanism 30 integrated in the underwater accommodating cavity 131.

In some embodiments, as shown in fig. 6, the underwater portion 13 is provided with a third partition 53, the third partition 53 divides the accommodating chamber 11 into a third electric control chamber 1311 and a third oil cooling chamber 1312, the power motor 21 and the transmission mechanism 30 are accommodated in the third oil cooling chamber 1312, and the driver 22 is accommodated in the third electric control chamber 1311.

When the power motor 21 and the transmission mechanism 30 operate in the third oil cooling cavity 1312, the third oil cooling cavity 1312 is often filled with an operating medium, and the third partition 53 can prevent the operating medium in the third oil cooling cavity 1312 from entering the third electric control cavity 1311, so that the driver 22 is prevented from being damaged, and the service life of the driver 22 is prolonged. The third partition plate 53 can also ensure sealing performance of the third oil cooling chamber 1312 and the third electric control chamber 1311, and when one of the third oil cooling chamber 1312 and the third electric control chamber 1311 is accidentally filled with water, the other can be prevented from being affected, so that service lives of the motor and the driver 22 can be prolonged, and maintenance can be facilitated for any one. In addition, the third oil cooling chamber 1312 and the third electric control chamber 1311 also ensure that the power motor 21 and the driver 22 are stably installed in the underwater portion 13, respectively, so as to avoid collision of the two.

In some embodiments, as shown in fig. 6, the outboard motor 100 further includes a third cable 27, the third cable 27 connecting the power motor 21 and the driver 22, the third bulkhead 53 being provided with a third threading hole 531 and a third wire harness seal 74 tightly fitted to an inner peripheral side wall of the third threading hole 531, the third cable 27 passing through the third threading hole 531 and tightly fitted to the third wire harness seal 74.

The third cable 27 can facilitate the driver 22 to accurately and efficiently control the power motor 21, thereby adjusting the output power of the power motor 21; the cooperation of the third threading hole 531 and the third wire harness seal 74 can facilitate the connection of the third cable 27 between the power motor 21 and the driver 22, and can still ensure the insulation between the third electric control chamber 1311 and the third oil cooling chamber 1312. Of course, in other embodiments of the present application, the third cable 27 may not be provided additionally, and the control between the driver 22 and the power motor 21 may be implemented through a wireless network without specific limitation.

Specifically, the third wire harness seal 74 of the present embodiment may be provided as a seal structure such as an oil seal or a seal ring.

In some embodiments, as shown in fig. 8 and 9, the outboard motor 100 further includes a steering mechanism 80, the steering mechanism 80 being coupled to the frame 10, the steering mechanism 80 for driving the frame 10 to steer. The steering mechanism 80 can drive the frame 10 to steer, and the frame 10 can drive the propeller 23 to steer after steering, so that the propulsion direction of the outboard motor 100 is controlled.

In some embodiments, the heat dissipation mechanism 40 is also used to cool the steering mechanism 80.

The frame 10 has a certain weight, and the steering mechanism 80 needs to do work and generate heat when the frame 10 drives the hull 200 to rotate, and the heat dissipation mechanism 40 in this embodiment can cool the steering mechanism 80, so that the integration of the heat dissipation mechanism 40 of the outboard motor 100 is improved.

In some embodiments, as shown in fig. 8 and 9, steering mechanism 80 includes a power member 81 and a linkage member 82. One end of the linkage member 82 is connected with the output end of the power member 81, the other end of the linkage member 82 is connected with the frame 10, the linkage member 82 extends along the rotation direction of the output end of the power member 81, and the power member 81 is used for driving the linkage member 82 to rotate so as to drive the frame 10 to rotate, and the rotation axis of the linkage member 82 is parallel to the rotation direction.

It is understood that the linkage 82 may be fixedly connected to the frame 10, so as to drive the frame 10 to rotate when the linkage 82 rotates, and finally realize the steering of the propulsion direction of the outboard motor 100. In addition, in this embodiment, the frame 10 may be divided into a connection portion and a mounting portion, the connection portion is used for connecting the hull 200, the mounting portion defines the accommodating cavity 11, so that the mounting portion may be rotationally connected with the connection portion, one end of the linkage member 82 is fixedly connected with the connection portion, and the other end is fixedly connected with the mounting portion, and the mounting portion is driven to rotate by the linkage member 82, so as to finally realize steering of the propulsion direction of the outboard motor 100.

Specifically, the heat dissipation mechanism 40 may include an external steering cooling assembly and/or an internal steering cooling assembly, where the external steering cooling assembly is disposed outside of the steering mechanism 80, and may be configured as a fan, a heat dissipation fin, or the like, for example. When the heat dissipation mechanism 40 includes a built-in steering cooling component, the steering mechanism 80 includes a housing, at least part of the power member 81 and the linkage member 82 may be disposed in the housing, the housing defines a steering cooling cavity, and steering cooling oil may be introduced into the steering cooling cavity, or a steering cooling water pipe is disposed between an outer surface and an inner surface of the housing, so that cooling water may be introduced into the steering cooling water pipe, and thus the power member 81 and the linkage member 82 may exchange heat with the housing through the steering cooling oil or the cooling water, so as to achieve a cooling effect on the steering mechanism 80.

In some embodiments, as shown in fig. 8 and 9, the linkage 82 includes a linkage shaft 821 and a speed changing part 822, the speed changing part 822 is connected to the power member 81, one end of the linkage shaft 821 is connected to the speed changing part 822, and the other end of the linkage shaft 821 is connected to the frame 10 for driving the frame 10 to turn.

The speed changing part 822 can increase or decrease the steering speed of the outboard motor 100 and adjust the torque direction output by the power element 81 according to the actual requirement, so that the rotation axis of the linkage element 82 can be parallel to the rotation direction of the outboard motor 100, and the linkage shaft 821 can facilitate the transmission of the output power of the power element 81 to the speed changing part 822.

In some embodiments, as shown in fig. 8 and 9, the power member 81 includes a steering motor 811, the steering motor 811 outputting torque to a speed changing portion 822, the speed changing portion 822 for changing the torque of the steering motor 811 by rotation speed and outputting to a linkage shaft 821. The torque output from the steering motor 811 is stable and reliable, and the steering energy cost of the outboard motor 100 can be reduced.

In some embodiments, as shown in fig. 8 and 9, the shifting portion 822 includes two intermeshing shift gears 8221, and in other embodiments of the present application, the shifting portion 822 may further include a variety of shift arrangements such as a planetary gear arrangement, a timing belt arrangement, and the like.

The above embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present application.

Claims

1. An outboard motor, comprising:

a housing defining a receiving cavity;

the device comprises a power motor, a driver, a transmission mechanism and a propeller, wherein the power motor, the driver and the transmission mechanism are all arranged in the accommodating cavity, the driver is electrically connected with the power motor, one end of the transmission mechanism is directly connected with the output end of the power motor, the other end of the transmission mechanism extends out of the frame, and one end of the transmission mechanism extending out of the frame is connected with the propeller so as to transmit the rotation torque of the power motor to the propeller;

And the heat dissipation mechanism is arranged on the frame and used for cooling the power motor, the driver and the transmission mechanism.

2. The outboard motor of claim 1 wherein said heat dissipating mechanism includes a built-in heat dissipating assembly disposed on said frame for dissipating heat from said frame, said frame absorbing heat from said power motor, said drive and said transmission mechanism.

3. The outboard motor of claim 2 wherein said frame is provided with a first divider dividing said receiving cavity into a first electrically controlled cavity and a first oil cooled cavity, said power motor and said transmission being housed in said first oil cooled cavity, said drive being housed in said first electrically controlled cavity.

4. The outboard motor of claim 3 wherein said first oil cooling cavity contains a first cooling oil for heat exchange with said power motor and at least a portion of said transmission, said first cooling oil also for heat exchange with said frame for cooling said power motor and at least a portion of said transmission, said first cooling oil also for reducing rotational resistance of said power motor and transmission resistance of said transmission.

5. The outboard motor of claim 3 wherein a portion of said first oil cooling chamber is submerged, a portion of said first oil cooling chamber being submerged for receiving a first cooling fluid, said built-in heat dissipating assembly including a circulation assembly for extracting a portion of said first cooling fluid for delivery to said power motor and at least a portion of said transmission.

6. The outboard motor of claim 5, wherein said circulation assembly includes a circulation pump, a return pipe, and a first cooling tube, one end of said return pipe being submerged by said first cooling fluid, the other end of said return pipe being in communication with said circulation pump, one end of said first cooling tube being oriented toward said power motor and at least a portion of said transmission, the other end of said first cooling tube being in communication with said circulation pump, said circulation pump being configured to draw said first cooling fluid through said return pipe and deliver said first cooling fluid through said first cooling tube to said power motor and at least a portion of said transmission.

7. The outboard motor of claim 5, wherein said built-in radiator assembly further comprises a spray member coupled to said circulation assembly, said spray member for receiving said extracted first cooling fluid from said circulation assembly and spraying said extracted first cooling fluid to said power motor and at least a portion of said transmission.

8. The outboard motor of claim 2 wherein said built-in heat dissipating assembly comprises a water cooled tube built-in between an outer surface and an inner surface of said frame, said water cooled tube for passing cooling water, said power motor, said drive, and said transmission mechanism being capable of heat exchanging with said frame, said frame being capable of heat exchanging with said cooling water.

9. The outboard motor of claim 8 wherein said internal heat dissipating assembly further includes a water tank having a water outlet and a water return port, one end of said water cooling tube being in communication with said water outlet, the other end of said water cooling tube being in communication with said water return port so that said cooling water after heat exchange with said frame can flow back into said water tank and so that cooling water in said water tank flows into said frame for heat exchange with said frame;

or one end of the water cooling pipe is used for introducing cooling water in the water area, and the other end of the water cooling pipe is used for guiding the cooling water after heat exchange with the rack into the water area.

10. The outboard motor of claim 4, wherein said power motor includes a stator, a rotor, and an output shaft, said rotor cooperating with said stator, one end of said output shaft being connected to said rotor and the other end being connected to said transmission, said first cooling fluid also being used to cool said rotor and/or said stator.

11. The outboard motor of claim 2 wherein said heat dissipating mechanism further comprises an external heat dissipating assembly disposed in said cavity, said external heat dissipating assembly disposed on an exterior surface of said frame, said internal heat dissipating assembly for exchanging heat from said power motor, said drive, and said transmission mechanism to said frame, said external heat dissipating assembly for exchanging heat from said frame to an external environment.

12. The outboard motor of claim 1 wherein said heat dissipating mechanism comprises an external heat dissipating assembly disposed on an outer surface of said frame, said external heat dissipating assembly configured to absorb heat from said frame and exchange heat with the outside.

13. The outboard motor of claim 12 wherein said frame has a water portion for contacting air, said external heat dissipating assembly is disposed on an outer surface of said water portion, said power motor, said driver, and at least a portion of said transmission mechanism are disposed in said receiving cavity at locations corresponding to said water portion, said power motor, said driver, and at least a portion of said transmission mechanism are capable of exchanging heat with said frame, said frame is capable of transferring heat to said external heat dissipating assembly, said external heat dissipating assembly is also for air flow heat exchange to thereby cool said power motor, said driver, and at least a portion of said transmission mechanism.

14. The outboard motor of claim 13 wherein said outboard motor includes a plurality of fins, said plurality of fins being disposed side-by-side in said water portion, a first channel extending between adjacent ones of said fins in a direction parallel to a direction of propulsion of said propeller.

15. The outboard motor of claim 12, wherein the frame has an underwater portion for contacting a flow of water, the power motor and at least a portion of the transmission being disposed within the underwater portion, the power motor and at least a portion of the transmission being heat exchangeable with the underwater portion.

16. The outboard motor of claim 15, wherein said external heat dissipating assembly is disposed on an outer surface of said underwater portion and is configured to exchange heat with said water stream, said external heat dissipating assembly further being configured to exchange heat with said underwater portion.

17. The outboard motor of claim 15 wherein said outboard motor includes a plurality of fins, said plurality of fins being disposed side-by-side in said underwater portion, a direction of extension of a first channel between adjacent ones of said fins being parallel to a direction of propulsion of said propeller.

18. The outboard motor of claim 12, wherein said external heat dissipating assembly includes a plurality of heat dissipating ribs arranged around said frame proximate said power motor, said drive, and at least a portion of said transmission.

19. The outboard motor of claim 1 wherein said frame has a wave-pressing portion having a receiving cavity, said receiving cavity communicating with said receiving cavity, said wave-pressing portion for contacting the water flow in the body of water, said actuator secured to said receiving cavity and electrically connected to said power motor for controlling the operation of said power motor, said actuator in heat exchange relationship with said water flow via said wave-pressing portion.

20. The outboard motor of claim 19 wherein said wave pressing portion defines a cooling channel adjacent said body of water, said cooling channel being isolated from said receiving cavity, said cooling channel being adapted to be directed into a flow of water in said body of water to cause said wave pressing portion to exchange heat with said flow of water.

21. The outboard motor of claim 20, wherein the wave pressing portion is provided with a second cooling tube in the receiving cavity, the second cooling tube being in contact with the actuator, the second cooling tube being for thermal coupling with the actuator, and the second cooling tube being in communication with the cooling flow passage for transmitting a flow of water delivered by the cooling flow passage.

22. The outboard motor of claim 20, wherein a plurality of said cooling channels are provided, a plurality of said cooling channels being disposed side-by-side.

23. The outboard motor of claim 19, wherein the actuator is located in an interior surface of the receiving cavity that is remote from the propeller or the actuator is located in an interior surface of the receiving cavity that is proximate to the propeller.

24. The outboard motor of claim 1 wherein said frame includes a water portion defining a water receiving cavity, said power motor, said drive, and a portion of said transmission being received in said water receiving cavity.

25. The outboard motor of claim 24, wherein the transmission mechanism includes an overhead transmission assembly received in the water receiving chamber, the overhead transmission assembly for converting a rotational speed of the power motor to the propeller.

26. The outboard motor of claim 24, wherein said power motor includes a power output end for outputting torque and a fixed end spaced from said power output end, said drive being disposed on a side of said fixed end facing away from said power output end.

27. The outboard motor of claim 24, wherein said power motor includes a power output end for outputting torque and a fixed end spaced from said power output end, said fixed end and said power output end defining an outer peripheral side of said power motor therebetween, said drive being disposed on said outer peripheral side.

28. The outboard motor of claim 1 wherein said frame includes a water portion, said water portion including a first mounting portion and a second mounting portion, said second mounting portion being secured side-by-side with said first mounting portion, said first mounting portion defining a first mounting cavity, said second mounting portion defining a second mounting cavity, said drive being received in said first mounting cavity, said power motor and a portion of said transmission being received in said second mounting cavity.

29. The outboard motor of claim 28 further comprising a heat dissipating structure secured between and thermally coupled to the first mounting portion and the second mounting portion.

30. The outboard motor of claim 1, wherein the frame includes an underwater portion defining an underwater receiving cavity, the underwater portion being adapted to be disposed within water, the propeller being disposed in the underwater portion, at least a portion of the transmission being disposed in the underwater receiving cavity.

31. The outboard motor of claim 30, wherein the underwater containment chamber contains a second cooling fluid for cooling at least a portion of the transmission.

32. The outboard motor of claim 30, wherein said frame further includes a water portion defining a water receiving cavity, said power motor and said drive being located in said water receiving cavity, said transmission mechanism including a lower speed change assembly and a center drive shaft, said lower speed change assembly being located in said water receiving cavity, one end of said center drive shaft being connected to an output end of said power motor, one end of said lower speed change assembly being connected to the other end of said center drive shaft, and the other end of said lower speed change assembly being connected to said propeller.

33. The outboard motor of claim 32 further including a second divider separating said water-borne chamber into a second electronically controlled chamber and a second oil-cooled chamber, said second oil-cooled chamber in communication with said subsea chamber, said power motor and a portion of said transmission mechanism disposed in said second oil-cooled chamber, said second oil-cooled chamber and said subsea chamber containing a third cooling fluid for cooling said power motor and said transmission mechanism.

34. The outboard motor of claim 33, wherein the underwater portion comprises:

the extension shell is connected with the water part, and the centrally-mounted transmission shaft is arranged in the extension shell;

the underwater diversion part is connected with the extension shell, the underwater diversion part is provided with an underwater cavity, and the underlying speed changing assembly is accommodated in the underwater cavity.

35. The outboard motor of claim 30, further comprising a tail shaft, wherein one end of the tail shaft is connected to the drive mechanism, wherein the underwater portion defines a tail shaft bore, wherein a tail shaft seal is sealingly engaged with an inner peripheral sidewall of the tail shaft bore, wherein the tail shaft extends through the tail shaft bore and is sealingly engaged with the tail shaft seal, and wherein the tail shaft is connected to the propeller.

36. The outboard motor of claim 30, wherein the power motor, the driver, and the transmission are all located in the underwater receiving cavity.

37. The outboard motor of claim 1 further comprising a steering mechanism coupled to the frame, the steering mechanism for driving the frame to steer.

38. The outboard motor of claim 37, wherein the heat sink mechanism is further for cooling the steering mechanism.

39. The outboard motor of claim 37, wherein the steering mechanism comprises:

a power member;

the linkage piece, the one end of linkage piece with the output of power piece is connected, the other end with the frame is connected, the linkage piece is followed the direction of rotation of the output of power piece extends, the power piece is used for the drive the linkage piece rotates in order to drive the frame rotates, the axis of rotation of linkage piece is parallel to the direction of rotation.

40. The outboard motor of claim 39, wherein said linkage member includes a linkage shaft and a speed change portion, said speed change portion being connected to said power member, one end of said linkage shaft being connected to said speed change portion, and the other end of said linkage shaft being connected to said frame for steering said frame.

41. The outboard motor of claim 40, wherein said power element includes a steering motor that outputs torque to said speed change portion for changing a rotational speed of said steering motor and outputting said torque to said linkage shaft.

42. A water area mobile device, comprising:

a hull;

the outboard motor of any one of claims 1-41, mounted to said hull.