Integrated electronic control device for electric marine propulsion

Abstract

The utility model provides an integrated electric control device of electric ship propeller relates to electric ship field, including sealed casing, controller, steering wheel, rudder plate, rudder plate hinge and propeller, sealed casing is fixed on the upper end of rudder plate, the controller is fixed in sealed casing, the steering wheel includes steering wheel body and output shaft, the output shaft rotatable fixed on the steering wheel body, the steering wheel body is fixed in sealed casing, the output shaft extends to sealed casing outside, rudder plate hinge is rotatable connected with rudder plate, the end of output shaft that extends sealed casing is fixedly connected with rudder plate hinge, the pivot of output shaft and rudder plate hinge relative pivot coaxial of rudder plate, the propeller is fixed in the lower end of rudder plate, the controller is electrically connected with steering wheel, the controller is electrically connected with propeller, the utility model provides an integrated electric control device of electric ship propeller, solved in the prior art, when manually controlling electric ship, the problem that the steering control deviation is easy to produce can make the angle control of steering more accurate.

Description

Technical Field

[0001] This utility model relates to the field of electric ships, and in particular to an integrated electronic control device for electric ship propulsion. Background Technology

[0002] Electric ships rely on propellers for propulsion, and the stable operation of these propellers requires coordinated speed and direction control. Speed ​​control is achieved through an electrical connection between a controller and the propeller. The controller outputs control signals to precisely adjust the propeller motor speed, thereby controlling the ship's speed. Direction control, on the other hand, relies on a mechanically fixed link between a connecting rod and the propeller. The connecting rod is rotatably fixed to the ship, and the operator manually manipulates it to rotate relative to the ship, causing the propeller to change its direction of water propulsion and ultimately achieving ship steering.

[0003] Existing technologies include designs for electric ship propulsion systems, such as the integrated high-power-density underwater direct-drive permanent magnet motor propeller in Chinese patent application number 202321999999.6, which discloses an integrated electric ship propulsion system structure and working principle. This design uses a mid-shell as a linkage for directional control. Electrical wires run through the mid-shell, one end connecting to a motor controller located above it, and the other end connecting to an underwater motor located below, forming an electrical connection for speed control. The mid-shell is connected to a fixed frame support via a rotating base, forming a mechanical transmission structure for directional control. Directional adjustment in this design requires manual operation. The operator rotates a rear control handle, which, through its linkage with the propeller frame, drives the mid-shell, underwater motor, and propeller to rotate synchronously, thereby changing the propulsion direction.

[0004] However, manually controlling the linkage (its central housing) requires the operator to continuously apply force, which can easily lead to hand fatigue and increase the intensity of operation, especially in scenarios where the ship is sailing for a long time or needs to turn frequently. Furthermore, the precision of manual control depends on the operator's experience and feel, making it difficult to achieve fine-tuning of the propulsion direction. In narrow waterways or when moored at the shore, steering deviations can easily occur, affecting navigation safety. Utility Model Content

[0005] To address the aforementioned technical problems, the integrated electronic control device for electric ship propulsion provided by this utility model allows for more precise control of the steering angle.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: The integrated electronic control device for an electric marine propulsion system provided by this utility model includes a sealed housing, a controller, a rudder, a rudder plate, a rudder plate hinge, and a propulsion unit. The sealed housing is fixed to the upper end of the rudder plate. The controller is fixed inside the sealed housing. The rudder includes a rudder body and an output shaft. The output shaft is rotatably fixed to the rudder body. The rudder body is fixed inside the sealed housing. The output shaft extends outside the sealed housing. The rudder plate hinge is rotatably connected to the rudder plate. The end of the output shaft extending out of the sealed housing is fixedly connected to the rudder plate hinge. The rotation axis of the output shaft is coaxial with the rotation axis of the rudder plate hinge relative to the rudder plate. The propulsion unit is fixed to the lower end of the rudder plate. A wire channel is vertically arranged inside the rudder plate. The wire channel communicates with the sealed housing. The wire channel has an opening facing the propulsion unit. The controller is electrically connected to the rudder and the propulsion unit.

[0007] The integrated electronic control device for an electric marine propulsion system provided by this utility model preferably further includes a heat exchanger, a pump, and a heat dissipation pipe; the heat exchanger is disposed within the sealed housing; the pump is disposed within the sealed housing; the heat dissipation pipe is disposed within the sealed housing; the heat exchanger includes a cooling water inlet and a cooling water outlet; the cooling water inlet is connected to the pump outlet; a water pipe is vertically opened inside the rudder plate; the inlet of the water pipe is located at the lower end of the rudder plate; the outlet of the water pipe is located at the upper end of the rudder plate; the outlet of the water pipe is connected to the pump inlet through a pipe; the pump is electrically connected to the controller.

[0008] The integrated electronic control device for the electric ship propulsion provided by this utility model preferably includes a plurality of fixing holes on the rudder plate; the fixing holes are arranged perpendicular to the water pipe; the fixing holes penetrate the water pipe; and the fixing holes are located vertically below the inlet of the water pipe.

[0009] The integrated electronic control device for an electric marine propulsion system provided by this utility model preferably includes a hinge mounting groove on the rudder plate; a first rotating hole and a second rotating hole are vertically formed in the hinge mounting groove; the first rotating hole is located vertically above the second rotating hole; the first rotating hole and the second rotating hole are coaxial; the rudder plate hinge is rotatably fixed in the first rotating hole and the second rotating hole via a vertically extending rotating rod; the rotating rod is coaxially connected to the output shaft.

[0010] The integrated electronic control device for the electric ship propulsion provided by this utility model preferably has the direction of water flow being the front side; the front side of the cross section of the rudder plate perpendicular to the axis of the water pipe is arc-shaped and convex, while the rear side gradually narrows away from the front side and forms a sharp edge; the arc-shaped convex contour of the front side of the rudder plate and the narrowed contour of the rear side are transitioned by a smooth curve.

[0011] The integrated electronic control device for the electric ship propulsion provided by this utility model preferably includes a collision protection strip at the bottom of the rudder plate; the collision protection strip is located below the propulsion.

[0012] The integrated electronic control device for an electric ship propulsion system provided by this utility model preferably includes a wireless signal transmission module in the controller.

[0013] The above technical solution has the following advantages or beneficial effects: This utility model provides an integrated electronic control device for an electric marine propulsion system, relating to the field of electric ships. It includes a sealed housing, a controller, a rudder gear, a rudder plate, a rudder plate hinge, and a propulsion unit. The sealed housing is fixed to the upper end of the rudder plate. The controller is fixed inside the sealed housing. The rudder gear includes a rudder gear body and an output shaft. The output shaft is rotatably fixed to the rudder gear body. The rudder gear body is fixed inside the sealed housing. The output shaft extends outside the sealed housing. The rudder plate hinge is rotatably connected to the rudder plate. The end of the output shaft extending out of the sealed housing is fixedly connected to the rudder plate hinge. The rotation axis of the output shaft is coaxial with the rotation axis of the rudder plate hinge relative to the rudder plate. The propulsion unit is fixed to the lower end of the rudder plate. A vertically oriented electrical cable channel is provided inside the rudder plate. The electrical cable channel communicates with the sealed housing. The electrical cable channel has an opening facing the propulsion unit. The controller is electrically connected to the rudder gear and the propulsion unit. The integrated electronic control device for electric ship propulsion provided by this utility model solves the problem in the prior art that manual control of electric ship steering requires experience and that novices are prone to steering deviation when steering, allowing for more precise control of the steering angle. Attached Figure Description

[0014] The present invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not intentionally drawn to scale; the focus is on illustrating the gist of the invention.

[0015] Figure 1 This is a schematic diagram of the overall structure of the integrated electronic control device for the electric ship propulsion provided in Embodiment 1 of this utility model.

[0016] Figure 2 This is a schematic diagram showing the connection relationship between the rudder plate and the sealed housing of the integrated electronic control device of the electric ship propulsion provided in Embodiment 1 of this utility model.

[0017] Figure 3 This is a cross-sectional structural schematic diagram of the integrated electronic control device for the electric ship propulsion provided in Embodiment 1 of this utility model.

[0018] Figure 4 This is a schematic diagram showing the connection relationship between the pump and the heat exchanger of the integrated electronic control device for the electric ship propulsion provided in Embodiment 1 of this utility model.

[0019] Figure 5 This is a schematic diagram of the circuit connection frame of the integrated electronic control device for the electric ship propulsion provided in Embodiment 1 of this utility model. Detailed Implementation

[0020] Example 1: The integrated electronic control device for the electric ship propulsion provided in Embodiment 1 of this utility model, such as Figures 1 to 5 As shown, the system includes a sealed housing 1, a controller 2, a servo motor 3, a rudder plate 4, a rudder plate hinge 5, and a thruster 6. The sealed housing 1 is fixed to the upper end of the rudder plate 4. The controller 2 is fixed inside the sealed housing 1. The servo motor 3 includes a servo motor body 31 and an output shaft 32. The output shaft 32 is rotatably fixed to the servo motor body 31. The servo motor body 31 is fixed inside the sealed housing 1. The output shaft 32 extends out of the sealed housing 1. The rudder plate hinge 5 is rotatably connected to the rudder plate 4. The end of the output shaft 32 extending out of the sealed housing 1 is fixedly connected to the rudder plate hinge 5. The rotation axis of the output shaft 32 is coaxial with the rotation axis of the rudder plate hinge 5 relative to the rudder plate 4. The thruster 6 is fixed to the lower end of the rudder plate 4. A wire channel 41 is vertically arranged inside the rudder plate 4. The wire channel 41 connects to the sealed housing 1. The wire channel 41 has an opening facing the thruster 6. The controller 2 is electrically connected to the servo motor 3. The controller 2 is electrically connected to the thruster 6. The controller 2 includes a wireless signal transmission module.

[0021] The integrated electronic control device for the electric ship propeller provided in Embodiment 1 of this utility model allows the operator to control the rotational speed of the propeller 6 through interaction with the controller 2, and also to control the rudder motor 3. By adjusting the rotation angle of the output shaft 32 relative to the rudder motor body 31, precise control of the rotation angle between the rudder plate 4 and the rudder plate hinge 5 can be achieved. Since the rudder plate hinge 5 is fixed to the hull, when the rotation angle between the rudder plate 4 and the rudder plate hinge 5 changes, the angle of the rudder plate 4 changes accordingly, thereby changing the propulsion direction of the propeller 6 fixed to the rudder plate 4. The operator can also remotely interact with the controller 2 through an external device via the wireless signal transmission module of the controller 2, thereby increasing the operator's range of motion when operating the electric ship. Compared with the prior art where the operator needs to manually control and adjust the direction of the controller 2, making it difficult to accurately adjust the direction of the propeller 6, this embodiment achieves electronic control of the rotation angle between the rudder plate 4 and the rudder plate hinge 5 by setting the rudder motor 3, which allows for more precise angle control and thus more precise control of the direction of the electric ship. In addition, the wireless signal transmission module allows the operator greater freedom of movement when operating the electric ship.

[0022] The integrated electronic control device for the electric ship propulsion provided in Embodiment 1 of this utility model solves the problem in the prior art that manual control of electric ship steering requires experience and that novices are prone to steering deviation when steering, and allows for more precise control of the steering angle.

[0023] In this embodiment, a heat exchanger 7, a pump 8, and a heat dissipation pipe are also included. The heat exchanger 7 is disposed inside the sealed housing 1. The pump 8 is disposed inside the sealed housing 1. The heat dissipation pipe is arranged inside the sealed housing 1. The heat exchanger 7 includes a cooling water inlet and a cooling water outlet. The cooling water inlet is connected to the outlet of the pump 8. A water pipe 42 is vertically opened inside the rudder plate 4. The inlet 421 of the water pipe 42 is located at the lower end of the rudder plate 4. The outlet of the water pipe 42 is located at the upper end of the rudder plate 4. The outlet of the water pipe 42 is connected to the inlet of the pump 8 through a pipe. The pump 8 is electrically connected to the controller 2. The controller 2 generates heat during operation. The conventional method of heat dissipation is to set up a vent on the housing and set up a fan inside the housing to dissipate heat from the controller 2. However, humid air on the water can easily enter the housing through the vent, causing the controller 2 to short-circuit. In this embodiment, a heat exchanger 7 is set up and a pump 8 is used to draw water upward along the water pipe 42 in the rudder plate 4 into the sealed housing 1. The external water is used to cool the cold source in the heat dissipation pipe. The controller 2 is cooled by the cold source in the heat dissipation pipe (the layout between the heat dissipation pipe and the controller 2 is existing technology and will not be described in detail here). Since it is a sealed housing 1, there is no vent, which eliminates the possibility of water vapor entering the sealed housing 1 through the vent. Therefore, the structure of this embodiment can reduce the impact of water vapor entering the controller 2 on the operation of the controller 2.

[0024] In this embodiment, the rudder plate 4 is also provided with several fixing holes 43; the fixing holes 43 are set perpendicular to the water pipe 42; the fixing holes 43 penetrate the water pipe 42; the fixing holes 43 are set vertically below the inlet 421 of the water pipe 42. The rudder plate 4 is rigidly connected to the thruster 6. When the thruster 6 is working, the propeller rotation will generate lateral vibration, and the water flow impact will generate lateral force. Ordinary fixing holes are only opened on the surface of the rudder plate 4, and the bolt force is concentrated on the surface of the rudder plate 4. Long-term vibration is prone to cracking around the hole and loosening of the connection. In this embodiment, fixing holes 43 are set in the direction perpendicular to the water pipe 42 to connect the thruster 6, and the rigid structure of the water pipe 42 is used to ensure the stability of the position of the fixing holes 43. The two openings after the water pipe 42 is penetrated form a connection structure that restricts a straight line at two points, avoiding changes in the connection angle between the thruster 6 and the rudder plate 4. Since the fixing holes 43 are set below the inlet 421 of the water pipe 42, they will not affect the normal entry of water into the water pipe 42 and its upward movement into the sealed housing 1.

[0025] In this embodiment, the rudder plate 4 is provided with a hinge mounting groove 44; a first rotating hole 441 and a second rotating hole 442 are vertically opened in the hinge mounting groove 44; the first rotating hole 441 is located vertically above the second rotating hole 442; the first rotating hole 441 and the second rotating hole 442 are coaxial; the rudder plate hinge 5 can be rotatably fixed in the first rotating hole 441 and the second rotating hole 442 through a vertically extending rotating rod; the rotating rod is coaxially connected to the output shaft 32.

[0026] In this embodiment, the direction of water flow is the front side; the horizontal cross-section of the rudder plate 4 has an arc-shaped outward convexity on the front side, and gradually narrows away from the front side to form a sharp edge on the rear side; the arc-shaped outward convex contour of the front side of the rudder plate 4 and the narrowing contour of the rear side are transitioned by a smooth curve. The arc-shaped outward convex design on the front side ensures that when the water flow comes into contact with the rudder plate, it will flow smoothly along the arc-shaped surface and maintain a laminar flow state, avoiding the formation of local low-pressure vortices due to sharp corners or abrupt changes in shape; compared with the traditional cylindrical or square cross-sections that form a large area of ​​turbulent wake on the rear side, generating a reverse drag force, the rudder plate 4 in this embodiment narrows into a sharp edge on the rear side, so that after the water flow passes through the rudder plate, it will converge and separate at the sharp edge along the narrowed contour line, avoiding the generation of a wide wake vortex that affects the ship's movement in the forward direction.

[0027] In this embodiment, a bumper strip 9 is provided at the bottom of the rudder plate 4; the bumper strip 9 is located below the thruster 6. The function of the bumper strip 9 is to protect the rudder plate 4 when it comes into contact with the bottom of the water, preventing the thruster 6 from being damaged by direct contact with the bottom of the water.

[0028] In summary, this utility model provides an integrated electronic control device for an electric ship propulsion system, relating to the field of electric ships. It includes a sealed housing, a controller, a rudder gear, a rudder plate, a rudder plate hinge, and a propulsion unit. The sealed housing is fixed to the upper end of the rudder plate. The controller is fixed inside the sealed housing. The rudder gear includes a rudder gear body and an output shaft. The output shaft is rotatably fixed to the rudder gear body. The rudder gear body is fixed inside the sealed housing. The output shaft extends outside the sealed housing. The rudder plate hinge is rotatably connected to the rudder plate. The end of the output shaft extending out of the sealed housing is fixedly connected to the rudder plate hinge. The rotation axis of the output shaft is coaxial with the rotation axis of the rudder plate hinge relative to the rudder plate. The propulsion unit is fixed to the lower end of the rudder plate. A vertically oriented wire channel is provided inside the rudder plate. The wire channel communicates with the sealed housing. The wire channel has an opening facing the propulsion unit. The controller is electrically connected to the rudder gear and the propulsion unit. The integrated electronic control device for electric ship propulsion provided by this utility model solves the problem in the prior art that manual control of electric ship steering requires experience and that novices are prone to steering deviation when steering, allowing for more precise control of the steering angle.

[0029] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. An integrated electronic control device for an electric ship propulsion system, characterized in that, Includes a sealed housing, controller, servo motor, servo plate, servo plate hinge, and propeller; The sealed housing is fixed to the upper end of the rudder plate; the controller is fixed inside the sealed housing; The servo motor includes a servo motor body and an output shaft; the output shaft is rotatably fixed to the servo motor body; the servo motor body is fixed inside the sealed housing; The output shaft extends outside the sealed housing; The rudder hinge is rotatably connected to the rudder. The end of the output shaft extending out of the sealed housing is fixedly connected to the rudder plate hinge; the rotation axis of the output shaft is coaxial with the rotation axis of the rudder plate hinge relative to the rudder plate. The thruster is fixed to the lower end of the rudder plate; a wire channel is vertically arranged inside the rudder plate; the wire channel connects to the sealed housing; the wire channel has an opening facing the thruster; The controller is electrically connected to the servo motor; the controller is electrically connected to the thruster.

2. The integrated electronic control device for an electric ship propulsion system as described in claim 1, characterized in that, It also includes heat exchangers, pumps, and heat dissipation pipes; The heat exchanger is disposed within the sealed housing; the pump is disposed within the sealed housing; The heat dissipation pipes are arranged inside the sealed housing; The heat exchanger includes a cooling water inlet and a cooling water outlet; the cooling water inlet is connected to the pump outlet; a water pipe is vertically opened inside the rudder plate; the inlet of the water pipe is located at the lower end of the rudder plate; the outlet of the water pipe is located at the upper end of the rudder plate; the outlet of the water pipe is connected to the pump inlet through a pipe. The pump is electrically connected to the controller.

3. The integrated electronic control device for an electric ship propulsion system as described in claim 2, characterized in that, The rudder plate is also provided with several fixing holes; the fixing holes are set perpendicular to the water pipe; the fixing holes pass through the water pipe; the fixing holes are located vertically below the inlet of the water pipe.

4. The integrated electronic control device for an electric ship propulsion system as described in claim 1, characterized in that, The rudder plate is provided with a hinge mounting groove; a first rotating hole and a second rotating hole are vertically opened in the hinge mounting groove; the first rotating hole is located vertically above the second rotating hole; the first rotating hole and the second rotating hole are coaxial; The rudder hinge is rotatably fixed in the first and second rotating holes via a vertically extending rotating rod; the rotating rod is coaxially connected to the output shaft.

5. The integrated electronic control device for an electric ship propulsion system as described in claim 1, characterized in that, The direction of water flow is the front side; the horizontal cross-section of the rudder plate has an arc-shaped outward convexity on the front side and gradually narrows and forms a sharp edge on the rear side away from the front side; the arc-shaped outward convex contour of the front side of the rudder plate and the narrowing contour of the rear side are transitioned by a smooth curve.

6. The integrated electronic control device for an electric ship propulsion system as described in claim 1, characterized in that, The bottom of the rudder plate is provided with a collision protection strip; the collision protection strip is located below the thruster.

7. The integrated electronic control device for an electric ship propulsion system as described in claim 1, characterized in that, The controller includes a wireless signal transmission module.

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