Tilting mechanism of electric outboard engine

Abstract

The tilting mechanism comprises a mirror bracket, limiting structures, a motor bracket, a pipeline, a motor and a pulley system, the bottom of the mirror bracket is provided with a first fixing structure and a second fixing structure which are correspondingly provided with a rope and a fixed pulley in the pulley system respectively, and the left side and the right side of the bottom of the mirror bracket are provided with the limiting structures; third fixing structures are arranged on the motor bracket, movable pulleys are correspondingly mounted on the third fixing structures, the bottom of each third fixing structure is connected with a motor, and pipelines are integrally arranged on the left and right sides of each third fixing structure respectively; the pipeline is sleeved on the limiting rod to form a liftable tilting mechanism; according to the pulley type tilting mechanism, the motor is vertically pulled upwards, the distance between the gravity center and a pivot point is reduced, and the problem that when an existing tilting mechanism is used for driving the direct driving motor to slide upwards, the force of rotating the motor around the pivot point is remarkably increased is well solved; and meanwhile, the weight of the motor can be properly increased, and the force required by tilting of the motor can be kept at a proper level.

Description

Technical Field

[0001] The invention relates to the technical field of electric outboard motors, in particular to a tilting mechanism of an electric outboard motor. Background Art

[0002] Electrification, especially battery electric vehicles (BEVs), has made great progress in the past decade, and small and medium-sized electric outboards are also moving in this direction.

[0003] Electric outboard motors can be divided into two categories: geared and direct drive. The former have the advantages of smaller size / diameter and light weight, while the latter have the advantages of simple design, low noise and low cost.

[0004] Direct drive electric motors are available, which are quieter and less expensive, but have the main disadvantage of being heavier, while electric outboards are typically mounted to the hull via a mirror mount with a tilt mechanism that rotates the motor around a pivot point so that it can be lifted upward.

[0005] However, since the center of gravity of the existing tilting mechanism is much lower than the pivot point (such as Figure 1 ), which in turn increases the weight of the motor mounted on the propeller, i.e., when the motor is used with a mirror frame having an existing tilt mechanism, the force to rotate the motor about the pivot point is significantly increased, which has a great impact on the required tilt force. Summary of the invention

[0006] In view of the above-mentioned technical deficiencies, an object of the present invention is to provide a tilting mechanism for an electric outboard motor, which better solves the problem that when the existing tilting mechanism is used to drive the direct drive motor to slide upward, the force rotating the motor around the pivot point increases significantly.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] The present invention provides a tilting mechanism of an electric outboard motor, comprising a mirror frame, a limiting rod, a motor bracket, a pipeline, a fixed pulley, a movable pulley, a rope and a motor, wherein the bottom of the mirror frame has a first fixed structure and a second fixed structure, and a limiting rod is symmetrically provided on the left and right sides of the bottom of the mirror frame through fastening bolts; the motor bracket has a third fixed structure, and a pipeline is fixedly provided on the left and right sides of the motor bracket; the fixed pulley and the movable pulley are connected by a rope to form a pulley system, and one end of the rope is tied to the first fixed structure; the fixed pulley is arranged on the second fixed structure of the mirror frame through a bearing to form a fixed part; the movable pulley is respectively arranged on the third fixed structure of the motor bracket through a bearing to form a sliding part; the pipeline is sleeved on the limiting rod to form a tilting mechanism that can be raised and lowered;

[0009] The motor bracket bottom involves the motor.

[0010] Preferably, one end of the rope is tied to a first fixed structure, so as to fix the rope when lifting the motor and prevent the motor from sliding downward; the top of the mirror frame is fixedly connected to the bottom of a fixing device of an existing electric outboard motor; the other end of the rope is tied to the fixing device, so as to keep the motor in a specific position while reducing the force required to lift the motor when the pulley system is operated by pulling the rope.

[0011] Preferably, a limiting block is integrally provided at the bottom of the limiting rod to form a limiting structure for preventing the motor from moving below a certain minimum position.

[0012] Preferably, the electric motor performs vertical movement along the sliding system and performs secondary rotational movement around the pivot point of the existing electric outboard motor through the pulley system, which can shorten the distance between the center of gravity and the pivot point when the electric motor is slid upward, thereby significantly reducing the force required for the motor to rotate around the pivot point.

[0013] The beneficial effects of the present invention are as follows: the tilting mechanism in the present invention is configured as a pulley structure, which can reduce the force required to lift heavy objects; the motor is lifted upward by the pulley-type tilting mechanism, thereby reducing the distance between the center of gravity of the motor and the pivot point, thereby better solving the problem that when the existing tilting mechanism is used to drive the direct-drive motor to slide upward, the force required to rotate the motor around the pivot point increases significantly; at the same time, the weight of the motor can be appropriately increased, and the force required for tilting the motor can be maintained at an appropriate level. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 A schematic diagram of the structure of a direct drive electric outboard motor with a bracket and the position of the pivot point and the center of gravity;

[0016] Figure 2 A schematic structural diagram of a tilt mechanism of an electric outboard motor provided by an embodiment of the present invention;

[0017] Figure 3 for Figure 2 A schematic diagram of the structure in which a tilt mechanism is installed on an existing electric outboard motor.

[0018] Description of reference numerals:

[0019] Mirror frame 1, limiting rod 2, motor bracket 3, pipe 4, a fixed pulley 5, two movable pulleys 6, rope 7, motor 8, fixing device 9, limiting block 10, first fixing structure 101 and second fixing structure 102, third fixing structure 301. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Embodiment 1, as Figures 2 to 3 As shown, a tilt mechanism of an electric outboard motor includes a mirror frame 1, a limit rod 2, a motor bracket 3, a pipe 4, a fixed pulley 5, a movable pulley 6, a rope 7 and a motor 8. The bottom of the mirror frame 1 has a first fixed structure 101 and a second fixed structure 102, and a limit rod 2 is symmetrically provided on the left and right sides of the bottom of the mirror frame 1 through fastening bolts; the motor bracket 3 has a third fixed structure 301, and a pipe 4 is fixed on the left and right sides of the motor bracket 3; the fixed pulley 5 and the movable pulley 6 are connected by a rope 7 to form a pulley system; the fixed pulley 5 is arranged on the second fixed structure 102 through a bearing to form a fixed part; the movable pulley 6 is respectively arranged on the third fixed structure 301 through a bearing to form a sliding part; the pipe 4 is sleeved on the limit rod 2 to form a tilt mechanism that can be raised and lowered. Among them, the sliding system plays a role in moving the center of gravity of the motor closer to the pivot point of the bracket, thereby reducing the force required to rotate the motor around the pivot point, and the sliding system can further reduce the pulling force.

[0022] Furthermore, Figure 2 As shown, the bottom of the motor bracket 3 involves the motor 8.

[0023] Further, embodiments, such as Figure 3 As shown, one end of the rope 7 is tied to the first fixed structure 101, and is used to fix the rope and prevent the motor from sliding downward when lifting the motor; the top of the mirror frame 1 is fixedly connected to the bottom of the fixing device 9 of the existing electric outboard motor; the other end of the rope is tied to the fixing device 9, and is used to keep the motor 8 in a specific position while reducing the force required to lift the motor 8 when the pulley system is driven to operate by pulling the rope 7.

[0024] Further, such as Figure 2-Figure 3As shown, a limit block 10 is integrally provided at the bottom of the limit rod 2 to form a limit structure for preventing the motor 8 from moving below a certain minimum position, and when the lowest position of the sliding mechanism is reached, the motor is prevented from further sliding down by mechanical fixation.

[0025] In addition, it should be noted that Figure 2 As shown, the outer diameter of the pipe 4 is smaller than the outer diameter of the limit block 10. This arrangement can not only fix and limit the bottom position of the motor's movement, but also prevent the motor from sliding down.

[0026] Further, embodiments, such as Figure 3 As shown, the motor 8 performs vertical movement along the sliding system and performs secondary rotational movement around the pivot point of the existing electric outboard motor through the pulley system. When the motor is used to slide upward, the distance between the center of gravity and the pivot point can be shortened, thereby significantly reducing the force required for the motor to rotate around the pivot point.

[0027] When in use, one only needs to pull the pulley system through which the rope passes to drive the motor to slide upward, so that the distance between the center of gravity and the pivot point is reduced, thereby significantly reducing the force required to rotate the motor around the pivot point; at the same time, the force required to tilt the motor is maintained at an appropriate level.

[0028] The tilting mechanism in the present invention is configured as a pulley structure, which can reduce the force required to lift heavy objects; the motor is lifted upward by the pulley-type tilting mechanism, thereby reducing the distance between the center of gravity of the motor and the pivot point, thereby better solving the problem that when the existing tilting mechanism is used to drive the direct-drive motor to slide upward, the force required to rotate the motor around the pivot point increases significantly; at the same time, the weight of the motor can be appropriately increased, and the force required for tilting the motor can be maintained at an appropriate level.

[0029] Since these variations and combinations of the above features and other variations and combinations may be utilized without departing from the subject matter defined in the claims, the foregoing description of the exemplary embodiments should be made by way of illustration rather than by way of limitation to the subject matter defined in the claims. Obviously, various modifications and variations of the present invention may be made by those skilled in the art without departing from the spirit and scope of the present invention. Thus, the present invention is intended to include such modifications and variations as fall within the scope of the claims and their equivalents.

Claims

1. A tilting mechanism for an electric outboard motor, characterized in that: It includes a mirror frame, a limit rod, a motor bracket, a pipeline, a fixed pulley, a movable pulley, a rope and a motor. The bottom of the mirror frame has a first fixed structure and a second fixed structure, and a limit rod is symmetrically provided on the left and right sides of the bottom of the mirror frame through fastening bolts; the motor bracket has a third fixed structure, and a pipeline is fixedly provided on the left and right sides of the motor bracket; the fixed pulley and the movable pulley are connected by a rope to form a pulley system, and one end of the rope is tied to the first fixed structure; the fixed pulley is arranged on the second fixed structure of the mirror frame through a bearing to form a fixed part; the movable pulleys are respectively arranged on the third fixed structure of the motor bracket through bearings to form a sliding part; the pipeline is sleeved on the limit rod to form a tilting mechanism that can be raised and lowered; The motor bracket bottom involves the motor.

2. The tilting mechanism of an electric outboard motor according to claim 1, characterized in that: One end of the rope is tied to the first fixed structure; the top of the mirror frame is fixedly connected to the bottom of the fixing device of the existing electric outboard motor; and the other end of the rope is tied to the fixing device.

3. The tilting mechanism of an electric outboard motor according to claim 1, characterized in that: A limiting block is integrally arranged at the bottom of the limiting rod to form a limiting structure.

4. The tilting mechanism of an electric outboard motor according to claim 1, characterized in that: The electric motor performs vertical movement along the slide system and performs secondary rotational movement around the pivot point of the existing electric outboard motor through the pulley system.

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