CN114148497A

CN114148497A - Underwater propeller and water carrying device

Info

Publication number: CN114148497A
Application number: CN202111593527.6A
Authority: CN
Inventors: 张勇; 唐彪; 陶师正; 万小康
Original assignee: Guangdong ePropulsion Technology Co Ltd
Current assignee: Guangdong ePropulsion Technology Co Ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-03-08

Abstract

The present disclosure relates to an underwater propeller and a water carrying device. This underwater propulsor includes: the propeller body and locate screw, mount pad and fin on the propeller body, the screw is located the propeller body along the front side or the rear side of advancing direction, the mount pad is used for bearing the carrier with water and connects, the fin is connected in the side of propeller body along the advancing direction to when making the marine carrying device of underwater propulsor installation outside, water carrying device has better turning nature.

Description

Underwater propeller and water carrying device

Technical Field

The utility model relates to a delivery equipment technical field on water especially relates to an underwater propulsor and delivery device on water.

Background

In existing water vehicles, such as surfboards, standing paddles, etc., a propeller is typically attached to the bottom of the paddle board to provide forward propulsion to the paddle board. The propeller comprises a propeller main body and a propeller, wherein a power output shaft is arranged in the propeller main body, the propeller is connected to the power output shaft, and the power output shaft drives the propeller to rotate when rotating, so that advancing power is provided for the propeller main body. However, such propellers have poor steering when applied in paddle boards.

Disclosure of Invention

In order to solve the technical problem, the present disclosure provides an underwater propeller and a water carrying device.

In a first aspect, the present disclosure provides an underwater propulsor comprising: the propeller is located the front side or the rear side of propeller main part along the direction of advance, and the mount pad is used for bearing the carrier with water and is connected, and the fin is connected in the side of propeller main part along the direction of advance.

Optionally, the outer contours of the fin and the mounting seat are both flat structures, and the entirety of at least one of the fin and the mounting seat extends along a first plane, and the first plane passes through the advancing direction of the propeller main body.

Optionally, the mounting seat is internally provided with a mounting cavity, the underwater propeller further comprises a control circuit board, and the control circuit board is located in the mounting cavity.

Optionally, the panel direction of the control circuit board is parallel to the first plane.

Optionally, the mounting cavity has an opening for the cooling medium to enter, and the mounting cavity is further provided with a heat conducting member and a sealing member having a sealing cavity therein;

the heat conducting piece comprises a first heat conducting part and a second heat conducting part which are connected, the first heat conducting part is in heat conducting connection with the control circuit board, and the first heat conducting part and the control circuit board are hermetically arranged in the sealing cavity; the second heat conduction part is located outside the sealed cavity, and the second heat conduction part exchanges heat with a cooling medium entering the installation cavity.

Optionally, the sealing element is made of a potting adhesive, and the first heat conduction portion and the control circuit board are both coated in the potting adhesive.

Optionally, a bending portion is disposed on the second heat conducting portion, so that a part of the structure of the second heat conducting portion extends along the thickness direction of the control circuit board.

Optionally, the mount and the fin are located on opposite sides of the propeller body.

Optionally, the underwater propeller further comprises a propeller protection cover arranged on the propeller body, and the propeller protection cover is arranged on the outer side of the propeller.

Optionally, the underwater propeller further comprises a first connecting piece and a second connecting piece, the first connecting piece is connected to the mounting seat and the fin plate, the second connecting piece is connected to the propeller main body, and the propeller protecting cover is arranged on the first connecting piece and the second connecting piece to be erected outside the propeller through the first connecting piece and the second connecting piece.

Optionally, the mounting seat and the fin plate are both provided with a first positioning seat, and the propeller main body is provided with a second positioning seat;

the first positioning seat is provided with a first limiting part, and the first limiting part is used for limiting the displacement of the first connecting piece along the first direction;

the second positioning seat is provided with a second limiting part, and the second limiting part is used for limiting the displacement of the second connecting piece along a second direction perpendicular to the first direction so as to limit the displacement of the propeller protective cover along the first direction and the second direction, wherein the first direction and the second direction are both perpendicular to the advancing direction of the propeller main body.

Optionally, the first limiting part and the second limiting part are both provided with two limiting surfaces which are arranged oppositely, and the opposite directions of the two limiting surfaces are along a first direction or a second direction;

the first connecting piece is provided with a first positioning part which is clamped between two limiting surfaces of the first limiting part so as to limit the displacement of the first connecting piece along the first direction;

the second positioning part is arranged on the second connecting piece and clamped between two limiting surfaces of the second limiting part so as to limit the displacement of the second connecting piece along the second direction.

Alternatively, the mount is attached to a side surface of the propeller main body in the advancing direction.

Optionally, the propeller body comprises: the power output shaft, the shaft seal cabin with an opening and an end cover for closing the opening;

the output end of the power output shaft penetrates through the end cover and extends out of the shaft seal cabin, the propeller is connected to the power output shaft, and a first interval is formed between the propeller and the end cover along the axial direction of the power output shaft;

the one side that the end cover faced the screw is equipped with antiwind support, and antiwind support keeps off to be established at first spaced radial inboard.

Optionally, the anti-wind bracket is arranged around the circumference of the power output shaft.

Optionally, a through hole for the power output shaft to extend out is formed in the end cover, and a second interval is formed between the hole wall of the through hole and the power output shaft.

In a second aspect, the present disclosure provides an aquatic carrying device, which includes a carrying member and the above-mentioned underwater propeller, wherein the underwater propeller is disposed on the water inlet side of the carrying member.

Optionally, the water vehicle further comprises a battery, the battery is electrically connected to the underwater propeller, and the battery is located on the manned side of the carrier.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

the utility model provides an underwater propulsor and delivery device on water sets up the fin through the side at propeller main part along the direction of advance, and when the underwater propulsor was installed on the delivery device on water of outside, the fin can play the function of supplementary steering, consequently can improve delivery device on water's steering.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1a is a schematic structural diagram of an underwater propeller according to an embodiment of the present disclosure;

FIG. 1b is a schematic view of a partially cut-away configuration of an underwater vehicle according to an embodiment of the present disclosure;

FIG. 1c is a side view of an underwater propulsor in accordance with an embodiment of the present disclosure;

FIG. 2 is a schematic cross-sectional view of an underwater vehicle according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a propeller body in the underwater propeller according to the embodiment of the present disclosure;

fig. 4 is a schematic view of a connection structure of a first connection member and a first mounting seat in the underwater propeller according to the embodiment of the present disclosure;

fig. 5 is a schematic view of a connection structure of a second connection member and a second mounting seat in the underwater propeller according to the embodiment of the present disclosure;

FIG. 6 is a schematic view of a partially cut-away configuration of an underwater vehicle according to an embodiment of the present disclosure;

figure 7 is a schematic structural view of a water vehicle according to an embodiment of the present disclosure;

figure 8 is a schematic structural view of a water vehicle according to an embodiment of the present disclosure.

100, an underwater propeller; 10. a propeller body; 11. a power take-off shaft; 12. shaft sealing; 13. an end cap; 131. a second interval; 14. a first interval; 15. an anti-wind bracket; 20. a propeller; 30. a mounting seat; 31. a heat conductive member; 311. a first heat-conducting portion; 312. a second heat conduction portion; 3121. a bending section; 32. a seal member; 33. mounting holes; 34. an installation part; 40. a control circuit board; 50. a fin; 60. a propeller protective cover; 70. a first connecting member; 71. a first positioning seat; 710. a first mounting groove; 711. a first positioning portion; 712. 812, side channel walls; 80. a second connecting member; 81. a second positioning seat; 810. a second mounting groove; 811. a second positioning portion; 83. a third positioning seat; 831. a third mounting groove; 832. a third positioning part; 84. 85, screw holes;

200. a marine vehicle; 201. a carrier; 202. battery 203, cable.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

Examples

Fig. 1a is a schematic structural diagram of an underwater vehicle according to an embodiment of the present disclosure, fig. 1b is a schematic structural diagram of a partial cross-sectional view of the underwater vehicle according to the embodiment of the present disclosure, fig. 1c is a side view of the underwater vehicle according to the embodiment of the present disclosure, and fig. 2 is a schematic structural diagram of a cross-sectional view of the underwater vehicle according to the embodiment of the present disclosure.

Referring to fig. 1a and 1b, the present embodiment provides an underwater vehicle 100, where the underwater vehicle 100 includes: the propeller comprises a propeller body 10, and a propeller 20, a mounting seat 30 and a fin 50 which are arranged on the propeller body 10, wherein the propeller 20 is positioned at the front side or the rear side of the propeller body 10 along the advancing direction Q, the mounting seat 30 is used for being connected with a bearing piece of a water carrying device, and the fin 50 is connected to the side surface of the propeller body 10 along the advancing direction Q.

In the above-described aspect, by providing the fin 50 on the side surface of the propeller main body 10 in the advancing direction Q, when the underwater propeller 100 is mounted on an external water vehicle, the fin 50 can function to assist steering, and thus the steering performance of the water vehicle 100 can be improved.

Referring to fig. 1b, the propeller 20 is rotatably disposed on the propeller body 10, the propeller body 10 may be protrudingly disposed with a power output shaft 11, the propeller 20 is connected to the power output shaft 11, and the power output shaft 11 may drive the propeller 20 to rotate when rotating. The advancing direction Q of the propeller body 10 is along the axial direction Z of the power output shaft 11. The propeller 20 being located on the front side or the rear side of the propeller main body 10 in the advancing direction Q means that the propeller 20 and the propeller main body 10 are arranged at an interval in the advancing direction Q.

In addition, a mounting seat 30 is provided on the underwater vehicle 100 main body, and the mounting seat 30 is connected with a carrier 201 of the water vehicle 200. This allows the underwater vehicle 100 to be connected to the carrier 201 of the water vehicle 200 via the mounting 30.

In addition, in the underwater vehicle 100 provided in this embodiment, the outer contours of the fin 50 and the mounting seat 30 are both flat structures, and even if the outer contours of the fin 50 and the mounting seat 30 are streamlined, the running resistance of the underwater vehicle 100 can be reduced. The entirety of at least one of the fin 50 and the mount 30 extends along a first plane passing through the advancing direction Q of the propeller body 10, so that the attitude of the fin 50 and the mount 30 in the water is substantially parallel to the advancing direction Q of the propeller body 10 with less resistance.

In some examples, the first plane may also be perpendicular to the bearing surface of the bearing member 201, such that the fin 50 and the mount 30 are substantially upright in the water, which may further reduce the running resistance.

Exemplarily, referring to fig. 1c, the mount 30 and the fin 50 may be located at opposite sides of the thruster body 10. This allows the mount 30 to also function as a guide and a deflector as the fin 50.

In some embodiments, referring to fig. 2, underwater vehicle 100 further includes a control circuit board 40, and mount 30 is located on the water entry side of the carrier. It will be appreciated that the underwater vehicle operates underwater, and that the mounting 30 will also be located underwater when operating.

In addition, the mounting seat 30 has a mounting cavity therein, and the control circuit board 40 is located in the mounting cavity. Since the mount 30 is installed on the water inlet side of the carrier 201, the control circuit board 40 located in the installation cavity is also located under water, which improves heat dissipation compared to the case where the control circuit board 40 is located on water and radiates heat by air. Compare with the control circuit board 40 is located the radiating condition of carrying out through addding extra heat dissipation equipment on water, can reduce cost, and the structure is simpler.

In addition, in view of the fact that the thickness dimension of the control circuit board 40 is much smaller than the length and width dimensions of the control circuit board 40, the plate surface direction of the control circuit board 40 may be set parallel to the first plane described above in order to minimize the area of the mount base 30 on the plane perpendicular to the advancing direction Q.

In this embodiment, the control circuit board 40 can be well heat-dissipated by using water flowing in the surrounding environment of the mounting seat 30 as a cooling medium, and in concrete implementation, referring to fig. 2, the mounting cavity has an opening (not shown) for the cooling medium to enter, and the mounting cavity is further provided with a heat conducting member 31 and a sealing member 32 having a sealing cavity inside;

the heat conducting member 31 includes a first heat conducting portion 311 and a second heat conducting portion 312 connected to each other, the first heat conducting portion 311 is connected to the control circuit board 40 in a heat conducting manner, and the first heat conducting portion 311 and the control circuit board 40 are hermetically disposed in the sealed cavity; the second heat conduction portion 312 is located outside the sealed cavity, and the second heat conduction portion 312 exchanges heat with the cooling medium entering the installation cavity. Specifically, the heat on the control circuit board 40 is transferred to the second heat conduction portion 312 through the first heat conduction portion 311, and the second heat conduction portion 312 exchanges heat with the cooling medium to transfer the heat to the cooling medium.

For example, the bent portion 3121 is provided on the second heat conduction portion 312, so that a partial structure of the second heat conduction portion 312 extends along the thickness direction of the control circuit board 40, and compared with a case where the entire second heat conduction portion 312 is provided along the plate surface direction (vertical) of the control circuit board 40, the second heat conduction portion 312 has a larger contact area with the cooling medium, and the heat dissipation efficiency is higher.

In some embodiments, the material of the sealing element 32 may be a potting adhesive, so that the first heat conducting portion 311 and the control circuit board 40 are both covered in the potting adhesive, which has better sealing performance, and the potting adhesive also has a certain heat conductivity, which is beneficial for the heat dissipation of the control circuit board 40.

With continued reference to fig. 1a, the underwater vehicle 100 further includes a propeller protection cover 60 provided on the vehicle body 10, the propeller protection cover 60 being provided on the outer side of the propeller 20.

Optionally, the underwater vehicle 100 further includes a first connector 70 and a second connector 80, the first connector 70 is connected to both the mounting base 30 and the fin 50, the second connector 80 is connected to the vehicle body 10, and the propeller protection cover 60 is disposed on the first connector 70 and the second connector 80 so as to be erected outside the propeller 20 through the first connector 70 and the second connector 80. Since the outer diameter of the propeller protection cover 60 is generally large, and the mounting base 30 and the fin 50 are also located radially outside the propeller main body 10, when the propeller protection cover 60 is fixed on the mounting base 30 and the fin 50 by the first connecting member 70, the first connecting member 70 can extend along the axial direction Z of the power output shaft in the propeller main body 10, and the fixing stability is good.

In addition, it is understood that the propeller protection cover 60 is disposed on the first connecting member 70 and the second connecting member 80, specifically, an end of the first connecting member 70 facing away from the mounting seat 30 or the fin 50 is detachably connected to the propeller protection cover 60, or an end of the first connecting member 70 facing away from the mounting seat 30 or the fin 50 is integrally formed with the propeller protection cover 60.

The end of the second connecting member 80 facing away from the propeller main body 10 is detachably connected to the propeller protecting cover 60, or the end of the second connecting member 80 facing away from the propeller main body 10 is integrally formed with the propeller protecting cover 60.

Fig. 3 is a schematic structural view of a propeller main body in an underwater propeller according to an embodiment of the present disclosure, fig. 4 is a schematic structural view of a connection structure between a first connection member and a first mounting base in an underwater propeller according to an embodiment of the present disclosure, and fig. 5 is a schematic structural view of a connection structure between a second connection member and a second mounting base in an underwater propeller according to an embodiment of the present disclosure.

Referring to fig. 3, 4 and 5, the first positioning seat 71 is disposed on each of the mounting seat 30 and the fin 50, and the second positioning seat 81 is disposed on the propeller body 10; the first connecting member 70 is fixed on the mounting base 30 or the fin 50 by the first positioning base 71. For example, the first connector 70 and the first positioning seat 71 are connected together by a fastener. The second connector 80 is fixed to the propeller main body 10 by the second positioning seat 81, for example, the second connector 80 and the second positioning seat 81 are connected together by a fastener.

The first positioning seat 71 is provided with a first limiting part, and the first limiting part is used for limiting the displacement of the first connecting piece 70 along the first direction F;

the second positioning seat 81 is provided with a second limiting part, the second limiting part is used for limiting the displacement of the second connecting piece 80 along a second direction S perpendicular to the first direction F, because the first connecting piece 70 and the second connecting piece 80 are both connected with the propeller protection cover 60, the first limiting part limits the displacement of the first connecting piece 70 along the first direction F, and the second limiting part limits the displacement of the second connecting piece 80 along the second direction S, therefore, under the action of the first connecting piece 70 and the second connecting piece 80, the displacement of the propeller protection cover 60 along the first direction F and the second direction S can be limited, wherein the first direction F and the second direction S are both perpendicular to the advancing direction Q of the propeller main body 10.

In specific implementation, the first limiting part and the second limiting part are both provided with two limiting surfaces which are arranged oppositely, and the opposite directions of the two limiting surfaces are along a first direction F or a second direction S;

the first connecting member 70 is provided with a first positioning portion 711, and the first positioning portion 711 is clamped between two limiting surfaces of the first limiting portion to limit the displacement of the first connecting member 70 along the first direction F;

the second connector 80 is provided with a second positioning portion 811, and the second positioning portion 811 is clamped between two limiting surfaces of the second limiting portion to limit the displacement of the second connector 80 along the second direction S.

For example, referring to fig. 4, a first mounting groove 710 is formed on the first positioning seat 71, and two side groove walls 712 in the first mounting groove 710 form two limiting surfaces of the first limiting portion.

Referring to fig. 5, a second mounting groove 810 is disposed on the second positioning seat 81, and two side groove walls 812 in the second mounting groove 810 form two limiting surfaces of the second limiting portion.

Specifically, when the first connecting member 70 is mounted, the first positioning portion 711 on the first connecting member 70 is inserted into the first mounting groove 710, and the two side groove walls 712 of the first mounting groove 710 limit the displacement of the first connecting member 70 in the first direction F; the second positioning part 811 of the second connector 80 is inserted into the second mounting groove 810, and the two side groove walls 812 of the second mounting groove 810 limit the displacement of the second connector 80 in the second direction S.

In addition, a third positioning seat 83 is further arranged on the inner side wall of the propeller protection cover 60; a third mounting groove 831 is formed in the third positioning seat 83, a third positioning portion 832 is further disposed on a side of the second connecting member 80 away from the second positioning portion 811, and the third positioning portion 832 may be inserted into the third mounting groove 831 and clamped on two side groove walls of the third mounting groove 831, which are opposite to each other in the second direction S.

In particular, the side walls of the second mounting groove 810 and the third mounting groove 831, which have a limiting effect, may be parallel to each other, so that the second mounting groove 810 and the third mounting groove 831 may both limit the displacement of the second connector 80 along the second direction S.

In addition, as mentioned above, the first connecting member 70 and the first positioning seat 71 are fixed together by a fastener, the first connecting member 70 and the first positioning seat 71 may be provided with screw holes 84, and the screw holes 84 of the first positioning seat 71 may be disposed adjacent to the first mounting grooves 710. Correspondingly, the second connecting member 80 and the second positioning seat 81 are fixed together by a fastening member, both the second connecting member 80 and the second positioning seat 81 can be provided with screw holes 85, and the screw holes 85 can be arranged adjacent to the second mounting grooves 810.

With continued reference to fig. 1a, the mount 30 is attached to the side of the propeller body 10 in the advancing direction Q to reduce resistance, making the structure of the underwater propeller 100 more compact.

The end of the mounting seat 30 away from the thruster body 10 is further provided with a mounting portion 34, the mounting seat 30 is connected to the carrier through the mounting portion 34, and specifically, the mounting seat 30 is connected to the carrier 201 through a fastening member passing through the mounting hole 33 and fixed to the carrier 201.

Fig. 6 is a partial sectional structural schematic view of an underwater vehicle according to an embodiment of the present disclosure.

Referring to fig. 6, the propeller body 10 includes: a power output shaft 11, a shaft seal cabin 12 with an opening and an end cover 13 for closing the opening;

the output end of the power output shaft 11 penetrates through the end cover 13 and extends out of the shaft seal cabin 12, the propeller 20 is connected to the power output shaft 11, and the propeller 20 and the end cover 13 have a first interval 14 along the axial direction Z of the power output shaft 11;

the end cover 13 is provided with an anti-winding support 15 on the surface facing the propeller 20, and the anti-winding support 15 is arranged radially inside the first interval 14. Therefore, when sundries want to enter the gap between the propeller 20 and the end cover 13, the sundries are blocked by the anti-winding bracket 15 or wound on the anti-winding bracket 15, and cannot go deep into the first interval 14 to enter the shaft seal cabin 12, so that an effective anti-winding effect is achieved.

In order to achieve a good anti-wind effect in the entire circumferential direction, the anti-wind bracket 15 may be provided as a ring-shaped member disposed around the circumferential direction of the power output shaft 11.

The end cover 13 is provided with a through hole for the power output shaft 11 to extend out, and a second interval 131 is arranged between the hole wall of the through hole and the power output shaft 11. Through the size of reasonable second interval 131 that sets up for when second interval 131 takes place to block up, when the driving piece in propeller main part 10 takes place slight stifled commentaries on classics promptly, just make the driving piece shut down in time and clear up, can avoid the emergence of big stifled commentaries on classics accident, avoid the loss that can not retrieve.

In addition, the propeller main body 10 further includes an induction sensor and an alarm electrically connected to the control circuit board 40, and a driving member is also electrically connected to the control circuit board 40, and an output shaft of the driving member forms the power output shaft 11. The inductive sensor is used to detect the rotational speed of a drive member, for example, an output shaft of a drive motor. The induction sensor is a sensor integrated in a driving member, for example, a driving motor, for detecting a rotational speed of the driving motor. The control circuit board 40 is used for controlling the alarm to give an alarm when the rotating speed of the power output shaft is smaller than a preset threshold value.

In other examples, the propeller body 10 includes an alarm electrically connected to the control circuit board 40, and a driver, the output shaft of which forms the power output shaft 11, is also electrically connected to the control circuit board 40. The control circuit board 40 can obtain the rotation speed of the output shaft of the driver by detecting the counter electromotive force or the electrical angular frequency of the driver when operating. The control circuit board 40 is used for controlling the alarm to give an alarm when the rotating speed of the power output shaft is smaller than a preset threshold value.

Fig. 7 is a schematic structural view of a water vehicle according to an embodiment of the present disclosure, and fig. 8 is a schematic structural view of a water vehicle according to an embodiment of the present disclosure.

Referring to fig. 7 and 8, the present embodiment further provides an aquatic vehicle 200, which includes a bearing 201 and the above-mentioned underwater vehicle 100, wherein the underwater vehicle 100 is disposed on the water inlet side of the bearing 201.

The underwater vehicle 100 in this embodiment has been described in detail above, and can bring about the same or similar technical effects, and therefore, the details are not repeated herein.

In addition, the water vehicle 200 further comprises a battery 202, the battery 202 being electrically connected to the underwater propulsion 100, and the battery 202 being located on the manned side of the carrier 201. The battery 202 and the control circuit board 40 may be connected by a cable 203. The battery 202 and the control circuit board 40 are both components which generate more heat, and like this, the battery 202 and the control circuit board 40 are respectively arranged on the water and under the water, so that the condition that a plurality of components which generate heat are gathered to generate mutual heat interference is avoided, potential safety risks are reduced, and the heat dissipation performance of the battery 202 and the control circuit board 40 can be improved.

In the underwater vehicle 100 and the water loading device provided in this embodiment, the fin 50 is provided on the side surface of the propeller body 10 in the advancing direction Q, and when the underwater vehicle 100 is mounted on the external water vehicle 200, the fin 50 can serve as a steering assist function, so that the steering of the water vehicle can be improved.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An underwater propeller, comprising: the propeller body and locate screw, mount pad and fin on the propeller body, the screw is located the front side or the rear side of propeller body along the direction of advance, the mount pad is used for bearing the carrier with water carrying device and is connected, the fin connect in the side of propeller body along the direction of advance.

2. The underwater propeller of claim 1, wherein the outer profile of the fin and the mount are each a flat structure, and an entirety of at least one of the fin and the mount extends along a first plane that passes through a direction of advancement of the propeller body.

3. The underwater propulsion unit of claim 2, wherein the mounting base has a mounting cavity therein, the underwater propulsion unit further comprising a control circuit board located within the mounting cavity.

4. The underwater propeller of claim 3, wherein a board direction of the control circuit board is parallel to the first plane.

5. The underwater propulsion device of claim 3, wherein the installation cavity has an opening for the entry of a cooling medium, and the installation cavity is further provided therein with a heat-conducting member and a sealing member having a sealed cavity therein;

6. The underwater propulsion unit of claim 5, wherein the sealing element is made of a potting adhesive, and the first heat conduction portion and the control circuit board are both encapsulated in the potting adhesive.

7. The underwater propeller as recited in claim 5, wherein the second heat conduction portion is provided with a bent portion so that a partial structure of the second heat conduction portion extends in a thickness direction of the control circuit board.

8. The underwater propulsor of claim 1 wherein said mounting and said fins are located on opposite sides of said propulsor body.

9. The underwater propeller as claimed in any one of claims 1 to 8, further comprising a propeller protection cover provided on the propeller body, the propeller protection cover being provided outside the propeller.

10. The underwater propulsion unit of claim 9, further comprising a first connector and a second connector, the first connector being connected to both the mounting base and the fin, the second connector being connected to the propulsion unit body, and the propeller protection cover being disposed on the first connector and the second connector so as to be erected outside of the propeller through the first connector and the second connector.

11. The underwater propeller of claim 10, wherein the mounting seat and the fin plate are each provided with a first locating seat, and the propeller body is provided with a second locating seat;

the first positioning seat is provided with a first limiting part, and the first limiting part is used for limiting the displacement of the first connecting piece along a first direction;

the second positioning seat is provided with a second limiting part, the second limiting part is used for limiting the displacement of the second connecting piece along a second direction perpendicular to the first direction so as to limit the displacement of the propeller protective cover along the first direction and the second direction, and the first direction and the second direction are perpendicular to the advancing direction of the propeller main body.

12. The underwater propulsor of claim 11 wherein said first and second limiting portions each have two oppositely disposed limiting surfaces;

the first connecting piece is provided with a first positioning part, and the first positioning part is clamped between the two limiting surfaces of the first limiting part so as to limit the displacement of the first connecting piece along the first direction;

and a second positioning part is arranged on the second connecting piece and clamped between the two limiting surfaces of the second limiting part so as to limit the displacement of the second connecting piece along the second direction.

13. Underwater propeller as claimed in any of the claims 1 to 8, characterized in that the mounting is connected to the propeller body on the side in the direction of advance.

14. The underwater propeller of any one of claims 1 to 8, wherein the propeller body includes: the power output shaft, the shaft seal cabin with an opening and an end cover for closing the opening;

and one surface of the end cover, which faces the propeller, is provided with an anti-winding support, and the anti-winding support is arranged on the radial inner side of the first interval in a blocking manner.

15. Underwater propulsion according to claim 14, characterised in that the anti-wind up brackets are arranged around the circumference of the power take off shaft.

16. The underwater propeller of claim 15, wherein the end cap defines a through hole for the power output shaft to extend through, and a second space is provided between a wall of the through hole and the power output shaft.

17. A water craft comprising a carrier and an underwater vehicle as claimed in any one of claims 1 to 16, the underwater vehicle being provided on the water entry side of the carrier.

18. The water vehicle of claim 17, further comprising a battery electrically connected to the underwater propulsion device, the battery located on the man-carrying side of the carrier.