CN113716005A

CN113716005A - Electric propeller

Info

Publication number: CN113716005A
Application number: CN202111195543.XA
Authority: CN
Inventors: 邵建锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2021-11-30
Also published as: WO2023060670A1

Abstract

The invention discloses an electric propeller which comprises a flaky upper shell (1) and a flaky lower shell (3), a motor shell (2) arranged between the upper shell and the lower shell (1,3), a motor (4) arranged in the motor shell (2), and a propeller (5) arranged on one side of the motor shell (2); wherein the upper and lower shells (1,3) are vertically arranged one above the other, and the upper and lower shells (1,3) are connected into a whole through the motor shell (2); the propeller (5) is in transmission connection with an output shaft of the motor (4) and can rotate. Through setting up motor and screw etc, the motor drive screw rotates, and the screw acts on rivers, thereby rivers counteraction gives electric propulsion ware thrust forward, goes up the casing and is the slice with lower casing, and the fluid resistance that electric propulsion ware received like this is less.

Description

Electric propeller

Technical Field

The invention relates to the technical field of propellers, in particular to an electric propeller.

Background

An electric propeller is a power propulsion device, which may be mounted, for example, on the bottom of sailing boats, water skis, etc., for providing power for forward propulsion. With the improvement of living standard, people have higher and higher requirements on the electric propeller, such as new requirements on fluid resistance and the like.

Therefore, in order to meet the market demand, a new type of electric propeller needs to be designed.

Disclosure of Invention

The invention aims to solve the technical problem of providing an electric propeller with smaller fluid resistance aiming at the current situation of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: an electric thruster, characterized in that: comprises that

The propeller comprises an upper shell and a lower shell which are flaky, a motor shell arranged between the upper shell and the lower shell, a motor arranged in the motor shell, and a propeller arranged on one side of the motor shell;

wherein, the upper and lower shells are vertically arranged one above the other, and are connected into a whole through the motor shell;

the propeller is connected with the output shaft of the motor in a transmission way and can rotate.

The shape of the motor casing can be various, preferably, the axis of the motor casing is parallel to the width direction of the flaky upper and lower casings, the head of the motor casing is in a bullet shape and faces forwards, and the propeller is positioned at the rear side of the tail of the motor casing. Therefore, the overall structure of the electric propeller is reasonable.

In order to further reduce the resistance, the front side edges of the upper shell and the lower shell are inclined backwards, and the upper shell and the lower shell are in a fish fin shape as a whole. Thus, the upper and lower housings are subjected to less resistance to water flow.

In order to further reduce the resistance, the outer wall of the middle part of the motor shell is provided with a step part in the front-back direction;

in the front-rear direction, the thickness of the upper shell gradually decreases from the middle position to the front, and the front shell wall of the upper shell smoothly transitions. Therefore, the upper shell and the motor shell are subjected to smaller water flow resistance.

In order to effectively adjust the angle when the electric propeller deviates, a deviation vernier device is further arranged at the rear side edge of the lower shell and can swing along the thickness direction of the lower shell relative to the lower shell.

The installation mode of off tracking fine setting ware and lower casing can have the multiple, and preferably, the lower casing extends to the rear side and has a connecting plate, the off tracking fine setting ware is fixed on the connecting plate through the screw that extends from top to bottom. During installation, the screws are loosened, the deviation fine-tuning device is manually shifted to a required position, and then the screws are tightened, so that the position of the deviation fine-tuning device relative to the connecting plate can be fixed.

In order to facilitate the installation of the deviation trimmer, the deviation trimmer is positioned, the front part of the deviation trimmer is provided with a slot which is inserted and matched with the rear end of the connecting plate, and the slot bottom of the slot and the rear end of the connecting plate are both arc-shaped. Through setting up the slot, during the installation, the off tracking fine setting ware is pegged graft with the connecting plate earlier, is convenient for like this fix a position, passes through the screw fixation with off tracking fine setting ware and connecting plate again.

In order to reduce water flow resistance, the tail part of the deviation trimmer gradually extends towards the axis direction far away from the motor shell from front to back. Therefore, the water flow resistance of the deviation trimmer can be reduced.

In order to protect the propeller, a protective cover is provided around the propeller, the protective cover is connected to the rear side of the upper casing and the rear side of the lower casing, and the protective cover penetrates in the front-rear direction. Therefore, sundries in the water flow are not easy to enter the protective cover to interfere the rotation of the propeller.

In order to reduce the resistance, the rear side of the propeller is provided with a connecting body exposed out of the protective cover, and the connecting body is provided with a bullet-shaped tail part. By arranging the connecting body, the connecting body is provided with the bullet-shaped tail part, so that the water flow resistance borne by the connecting body can be reduced.

In order to facilitate the mounting of the electric thruster on an external sailboat or an external water ski, the bottom of the lower housing is provided with a base having a slot for plugging and matching with the bottom of the external sailboat or the external water ski. Through setting up the slot, conveniently link to each other electric propulsion ware and outside sailing boat or outside slide on water.

In order to control the operation of the motor, a circuit board electrically connected with the motor is arranged in the lower shell, a wire passing hole which is communicated with the lower shell and the motor shell is formed between the lower shell and the motor shell, and the motor and the circuit board are electrically connected through a wire passing through the wire passing hole. Therefore, the running of the motor can be controlled through the circuit board, and the space in the lower shell can be fully utilized.

Compared with the prior art, the invention has the advantages that: the motor drives the propeller to rotate by arranging the motor, the propeller and the like, the propeller acts on water flow, and the water flow reacts on the electric propeller to provide forward thrust for the electric propeller, so that the electric propeller moves forward; the upper shell and the lower shell are in a sheet shape, so that the electric propeller is less in fluid resistance; the electric propeller has simple and reasonable structure and is easy to produce; the design of the invention can be suitable for various SUP paddle boards, integrated circuit boards with built-in fins and variable frequency motors on the market.

Drawings

Fig. 1 is a perspective view of an electric thruster according to a first embodiment of the present invention;

FIG. 2 is an assembly diagram of an upper housing, a portion of a motor housing, and a portion of a lower housing according to an embodiment of the present invention;

FIG. 3 is a schematic view of an assembly of an upper housing, a portion of a motor housing, and a portion of a lower housing at another angle according to an embodiment of the present invention;

FIG. 4 is a schematic view of an assembly of an upper housing, a portion of a motor housing, a lower housing, a propeller, and a connector according to an embodiment of the present invention;

fig. 5 is a bottom view of the electric thruster according to the first embodiment of the present invention;

fig. 6 is an exploded view of an electric thruster according to a first embodiment of the present invention;

fig. 7 is a perspective view of an electric propeller according to a second embodiment of the present invention;

fig. 8 is a perspective view of the fine deviation adjuster of fig. 7.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 6, a preferred embodiment of the electric propeller of the present invention is shown.

This electric thruster is including being flaky casing 1 and casing 3 down, setting up motor casing 2 between

casing

1,3 about, setting up motor 4 in motor casing 2, set up screw 5 in motor casing 2 one side, still include safety cover 7, connector 8, base 100.

Wherein, upper and

lower casing

1,3 are vertical setting one on top of the other, and upper and

lower casing

1,3 link as an organic whole through motor casing 2. The front side edges of the upper shell 1 and the lower shell 3 are inclined backwards, and the upper shell 1 and the lower shell 3 are in a fin shape integrally, so that the upper shell 1 and the lower shell 3 are less in resistance to water flow. In the front-rear direction, the thickness of the upper casing 1 gradually decreases from the middle position forward, that is, the front side of the upper casing 1 is thinner and the middle part is thicker, and the front outer wall of the upper casing 1 smoothly transitions, that is, the front outer wall of the upper casing 1 is smoother. The surface of the lower case 3 has a plurality of ribs 33 extending forward and rearward, and all the ribs 33 are arranged at intervals in the up-down direction.

The motor casing 2 is substantially goose egg-shaped. The outer wall of the middle part of the motor shell 2 is provided with a step-shaped step part 23 in the front-back direction; the middle of the motor case 2 protrudes outward from the upper case 1 and the lower case 3 in the thickness direction. The axis of the motor case 2 is parallel to the width direction of the sheet-like upper and

lower cases

1,3, and the head of the motor case 2 is bullet-shaped and faces forward. In order to facilitate the installation of the motor 4, the motor casing 2 includes a front half casing 21 and a rear half casing 22 which can be hermetically matched with each other, so that the sealing performance is better, that is, the front half casing 21 is bullet-shaped, and the front half casing 21 is clamped with the lower casing 3.

Preferably, the motor 4 is a waterproof motor, so that when water enters the motor casing 2, the motor 4 can still normally operate.

The propeller 5 is in transmission connection with the output shaft of the motor 4 through a transmission shaft and can rotate. The propeller 5 is located at the rear side of the tail of the motor housing 2.

The protective cover 7 is arranged on the periphery of the propeller 5, the protective cover 7 is respectively connected with the rear side of the upper shell 1 and the rear side of the lower shell 3, specifically, the protective cover 7 is in clamping fit, and the protective cover 7 penetrates in the front-rear direction. The protective cover 7 is respectively matched with the rear side of the upper shell 1 and the rear side of the lower shell 3 in a plug-in mode, so that the protective cover 7 is convenient to disassemble and assemble.

The connecting body 8 is disposed at the rear side of the propeller 5 and exposed to the protective cover 7, and the connecting body 8 has a bullet-shaped tail portion so that the water flow resistance is small.

In order to fully utilize the space in the lower housing 3, referring to fig. 2 and 3, the circuit board 9 is disposed in the lower housing 3 and electrically connected to the motor 4, a wire passing hole 32 (fig. 4) is opened between the lower housing 3 and the motor housing 2 to vertically communicate the two, and the motor 4 and the circuit board 9 are electrically connected by a wire (not shown) passing through the wire passing hole 32. Still be provided with the heat dissipation aluminum sheet 600 of laminating mutually with circuit board 9 in the lower casing 3, the heat conduction silica gel 500 that links to each other with heat dissipation aluminum sheet 600, through setting up heat dissipation aluminum sheet 100 and heat conduction silica gel 500, the circuit board 9 heat dissipation of being convenient for. To export data, the circuit board 9 is connected to the connector 400 via a connecting line 300, and data is exported via the connector 400.

A base 100 is provided at the bottom of the lower housing 3, preferably, for easy mounting and dismounting, the base 100 is snap-fitted to the lower housing 3, the base 100 having a slot 101 (fig. 5) for snap-fitting engagement with the bottom of an external sailboat or an external water ski. Preferably, the base 100 comprises a first base 102 and a second base 103 connected with each other, and the positions of the first base 102 and the second base 103 can be interchanged, so as to adapt to various SUP paddles on the market.

The principle and the using process of the electric propeller are as follows.

The electric propulsion apparatus is mounted to an external sailboat or external water ski by mating the slots 101 of the base 100 with the external sailboat or external water ski. The motor 4 drives the propeller 5 to rotate, the propeller 5 acts on water flow, and the water flow reacts on the electric propeller so as to provide forward thrust for the electric propeller. Because the upper casing 1 and the lower casing 3 are in a sheet shape, and the front sides of the upper casing 1 and the lower casing 3 are thinner, the head of the motor casing 2 is in a bullet shape, and the surface of the lower casing 3 is provided with a plurality of convex ribs 33 extending forwards and backwards, so that the water flow resistance of the electric propeller is smaller. The electric propeller is simple in structure and easy to produce.

Example 2:

as shown in fig. 7 to 8, another preferred embodiment of the electric propeller of the present invention is shown.

The structure of the electric propeller of embodiment 2 is substantially the same as that of the electric propeller of embodiment 1, except that: a deviation trimmer 6 is added, and the deviation trimmer 6 can swing along the thickness direction relative to the lower shell 3. The deviation trimmer 6 is arranged at the rear side edge position of the lower shell 3. Specifically, a connection plate 31 extends from the lower case 3 to the rear side, and the tracking fine-adjuster 6 is fixed to the connection plate 31 by a screw 200 extending upward and downward. In order to facilitate positioning during installation, the front part of the deviation trimmer 6 is provided with a slot 61 which is inserted and matched with the connecting plate 31, and the bottom of the slot 61 and the rear end of the connecting plate 31 are both arc-shaped. The tail of the deviation trimmer 6 extends from front to back gradually towards the axis direction far away from the motor casing 2, specifically, the upper edge 62 of the tail of the deviation trimmer 6 extends from front to back firstly upwards and then downwards and then upwards, and the lower edge 63 of the tail of the deviation trimmer 6 extends from front to back firstly downwards and then upwards.

The principle and the using process of the electric propeller of the embodiment are basically the same as those of the embodiment 1, except that: during installation, the slot 61 of the deviation trimmer 6 is aligned with the connecting plate 31 of the lower shell 3, then the deviation trimmer 6 is shifted to a proper position, and then the screw 200 is screwed.

When the electric propeller deviates, the screw 200 is unscrewed, the deviation fine-tuning device 6 is manually shifted to a proper position, and then the screw 200 is screwed.

Claims

1. An electric thruster, characterized in that: comprises that

The motor comprises an upper shell (1) and a lower shell (3) which are flaky, a motor shell (2) arranged between the upper shell and the lower shell (1,3), a motor (4) arranged in the motor shell (2), and a propeller (5) arranged on one side of the motor shell (2);

wherein the upper and lower shells (1,3) are vertically arranged one above the other, and the upper and lower shells (1,3) are connected into a whole through the motor shell (2);

the propeller (5) is in transmission connection with an output shaft of the motor (4) and can rotate.

2. The electric thruster of claim 1, wherein: the axis of the motor casing (2) is parallel to the width direction of the flaky upper and lower casings (1,3), the head of the motor casing (2) is bullet-shaped and faces forward, and the propeller (5) is positioned at the rear side of the tail of the motor casing (2).

3. The electric thruster of claim 1, wherein: the front side edges of the upper shell (1) and the lower shell (3) are inclined backwards, and the upper shell (1) and the lower shell (3) are integrally in a fish fin shape.

4. The electric thruster of claim 1, wherein: the outer wall of the middle part of the motor shell (2) is provided with a step-shaped step part (23) in the front-back direction;

in the front and rear direction, the thickness of the upper shell (1) is gradually reduced from the middle position to the front, and the outer wall of the front part of the upper shell (1) is in smooth transition.

5. The electric thruster of claim 1, wherein: the rear side edge position of the lower shell (3) is also provided with a deviation trimmer (6), and the deviation trimmer (6) can swing along the thickness direction of the lower shell (3) relatively.

6. The electric thruster of claim 5, wherein: the lower shell (3) extends towards the rear side to form a connecting plate (31), and the deviation fine-tuning device (6) is fixed on the connecting plate (31) through screws (200) extending up and down.

7. The motorized pusher of claim 6, wherein: the front part of the deviation trimmer (6) is provided with a slot (61) which is inserted and matched with the rear end of the connecting plate (31), and the bottom of the slot (61) and the rear end of the connecting plate (31) are both arc-shaped.

8. The electric thruster of claim 5, wherein: the tail of the deviation trimmer (6) extends towards the axis direction away from the motor casing (2) gradually from front to back.

9. The electric propeller according to any one of claims 1 to 8, wherein: the propeller protection device is characterized by further comprising a protective cover (7) arranged on the periphery of the propeller (5), wherein the protective cover (7) is respectively connected with the rear side of the upper shell (1) and the rear side of the lower shell (3), and the protective cover (7) penetrates in the front-rear direction;

the rear side of the propeller (5) is provided with a connecting body (8) exposed out of the protective cover (7), and the connecting body (8) is provided with a bullet-shaped tail part.

10. The electric propeller according to any one of claims 1 to 8, wherein: the bottom of the lower shell (3) is provided with a base (100), and the base (100) is provided with a slot (101) which is used for being in plug-in fit with the bottom of an external sailing boat or an external water skateboard.

11. The electric propeller according to any one of claims 1 to 8, wherein: set up circuit board (9) of being connected with motor (4) electricity in lower casing (3), it has wire passing hole (32) that communicate both from top to bottom to open between lower casing (3) and motor casing (2), connect mutually through the wire that passes this wire passing hole (32) between motor (4) and circuit board (9).