A Separable Power Plant for Electric Ships and an Electric Ship

By designing a separate power unit, the hull is wirelessly connected to the mother ship to achieve power replenishment, which solves the problems of range and charging efficiency of electric ships, and improves shipping efficiency and cargo space utilization.

CN224427778UActive Publication Date: 2026-06-30SANDIANSHUI NEW ENERGY TECH (ANHUI) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SANDIANSHUI NEW ENERGY TECH (ANHUI) CO LTD
Filing Date
2025-07-15
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The range of electric ships is limited by battery capacity, and charging and battery swapping affect shipping efficiency.

Method used

Design a separate power unit, including a hull, a wireless charging and discharging unit, a connecting mechanism, an energy storage unit, and a drive mechanism. The hull can travel in water and can be detachably connected to a mother ship. Energy is replenished through the wireless charging and discharging unit, the energy storage unit stores electrical energy, and the drive mechanism drives the hull.

Benefits of technology

It enables efficient energy replenishment for electric ships, and no wiring is required after the hull is connected to the mother ship, increasing the cargo space of the mother ship and improving shipping efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a detachable power unit for electric ships and an electric ship, relating to the field of electric ship technology. It includes: a hull capable of navigating in water; a wireless charging / discharging unit, a connecting mechanism, an energy storage unit, and a drive mechanism arranged sequentially from front to back on the hull; the connecting mechanism for detachable connection to a connecting structure of the electric ship serving as a mother ship; the energy storage unit for storing electrical energy; the wireless charging / discharging unit for connecting the energy storage unit to the electric ship's battery for charging and discharging; and the drive mechanism connected to the energy storage unit and used to drive the hull. This invention addresses the shortcomings in the range and charging / battery swapping capabilities of existing electric ships.
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Description

Technical Field

[0001] This utility model belongs to the field of electric ship technology, and more specifically, relates to a separate power unit for electric ships and an electric ship. Background Technology

[0002] Electric ships, powered by batteries, can effectively reduce emissions and noise pollution, making them a key development direction for the shipping industry. However, the battery capacity of electric ships limits their range, making it difficult to meet the needs of long-distance ocean transport. Larger battery packs also encroach on cargo space and increase the ship's weight. Furthermore, the need for existing electric ships to charge or swap batteries in ports affects shipping efficiency. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a separate power unit and an electric vessel for electric ships, thereby solving the problems of insufficient range and charging / battery swapping capabilities of existing electric ships.

[0004] To achieve the above objectives, this utility model provides a separate power unit for electric ships, comprising:

[0005] The hull is capable of navigating in water. From front to back, the hull is provided with a wireless charging and discharging unit, a connection mechanism, an energy storage unit, and a drive mechanism. The connection mechanism is used for detachable connection with the connection structure of the electric vessel, which serves as the mother ship. The energy storage unit is used to store electrical energy. The wireless charging and discharging unit is used to connect the energy storage unit to the battery of the electric vessel for charging and discharging. The drive mechanism is connected to the energy storage unit and is used to drive the hull.

[0006] Optionally, the wireless charging and discharging unit includes a charging and discharging electromagnetic induction coil.

[0007] Optionally, the connecting mechanism includes an electrically telescopic component and a locking pin. The electrically telescopic component is disposed inside the hull, and the locking pin is connected to the telescopic end of the electrically telescopic component. The locking pin slides through the hull, and when the telescopic end of the electrically telescopic component extends, the locking pin can extend out of the hull.

[0008] Optionally, the energy storage unit includes a battery.

[0009] Optionally, the drive mechanism includes a drive motor, a propeller shaft, and propeller blades. The drive motor is located inside the stern of the hull, and the output end of the drive motor is connected to the propeller shaft. The propeller shaft extends out of the hull and is connected to multiple propeller blades.

[0010] Optionally, it also includes a navigation and positioning unit, which is disposed in the hull and includes a navigation module and a sonar positioning module.

[0011] Optionally, the energy storage unit further includes a plurality of battery storage conduits arranged along the length of the hull, and the battery is disposed within the battery storage conduits.

[0012] This utility model also provides an electric boat, comprising:

[0013] Mothership, which is equipped with batteries, a propulsion system and a connection structure;

[0014] The aforementioned detachable propulsion unit for electric ships is detachably connected to the connecting structure via the connecting mechanism.

[0015] Optionally, the connection structure includes a plug groove disposed at the stern of the mother ship and a plug ring disposed on the inner circumference of the plug groove. The plug groove can accommodate a portion of the hull to be inserted, and the plug ring has a plurality of plug holes, which can accommodate the insertion of the locking pin of the connection mechanism.

[0016] Optionally, the separate power unit for electric ships is provided with at least two.

[0017] This utility model provides a detachable power unit for electric ships and an electric ship. Its advantages are as follows: the detachable power unit for electric ships has a hull that can travel in water under the drive of a drive mechanism. The hull can be detachably connected to an electric ship (actually a mother ship) via a connection mechanism. After the hull is connected to the mother ship, it can charge the mother ship's battery through its wireless charging and discharging unit, thus replenishing the mother ship's energy. The detachable power unit for electric ships utilizes the hull's energy storage unit to store electrical energy. After replenishing the mother ship's energy, it can recharge to reconnect to the mother ship, achieving cyclical power replenishment. Furthermore, the use of a wireless charging and discharging unit allows for energy replenishment without the need for wiring after the hull is connected to the mother ship, making it convenient and efficient.

[0018] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0019] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0020] Figure 1 A schematic diagram of the overall structure of a separate power unit for an electric ship according to an embodiment of the present invention is shown.

[0021] Figure 2 A schematic diagram of the structure of a wireless charging and discharging unit for a detachable power unit of an electric ship according to an embodiment of the present invention is shown.

[0022] Figure 3 A schematic diagram of the connection mechanism for a detachable power unit for an electric ship, according to an embodiment of the present invention, is shown.

[0023] Figure 4 A schematic diagram of the drive mechanism for a split-type power unit for an electric ship is shown according to an embodiment of the present invention.

[0024] Figure 5 A schematic diagram of the structure of a navigation and positioning unit for a separate power unit of an electric ship according to an embodiment of the present invention is shown.

[0025] Figure 6 A schematic diagram of the structure of an energy storage unit for a split-type power unit for an electric ship, according to an embodiment of the present invention, is shown.

[0026] Figure 7 It shows Figure 6 A magnified view of a portion of the image.

[0027] Figure 8 A schematic diagram of the structure of an electric ship according to an embodiment of the present invention is shown.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Hull; 2. Wireless charging and discharging unit; 3. Connection mechanism; 4. Energy storage unit; 5. Drive mechanism; 6. Charging and discharging electromagnetic induction coil; 7. Electric telescopic component; 8. Locking pin; 9. Battery; 10. Drive motor; 11. Propeller shaft; 12. Propeller blade; 13. Controller; 14. Sonar positioning module; 15. Battery storage conduit; 16. Mother ship; 17. Connecting ring; 18. Navigation and positioning unit. Detailed Implementation

[0030] Preferred embodiments of the present invention will now be described in more detail. While preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0031] like Figure 1 As shown, this utility model provides a separate power unit for electric ships, comprising:

[0032] The hull 1 is capable of traveling in water. From front to back, the hull 1 is provided with a wireless charging and discharging unit 2, a connecting mechanism 3, an energy storage unit 4, and a drive mechanism. The connecting mechanism 3 is used to detachably connect to the connection structure of the electric vessel, which serves as the mother ship 16. The energy storage unit 4 is used to store electrical energy. The wireless charging and discharging unit 2 is used to connect the energy storage unit 4 to the battery of the electric vessel for charging and discharging. The drive mechanism 5 is connected to the energy storage unit 4 and is used to drive the hull 1.

[0033] Specifically, to address the shortcomings in the range and charging / battery swapping capabilities of existing electric vessels, this utility model provides a detachable power unit for electric vessels. The hull 1, driven by a drive mechanism, can navigate in water. The hull 1 can be detachably connected to the electric vessel (a mother vessel 16) via a connecting mechanism 3. After connecting to the mother vessel 16, the hull 1 can charge the mother vessel 16's battery via its wireless charging / discharging unit 2, thus replenishing the mother vessel 16's energy. This detachable power unit for electric vessels utilizes the energy storage unit 4 of the hull 1 to store electrical energy. After replenishing the mother vessel 16's energy, it can recharge to reconnect to the mother vessel 16, achieving cyclical power replenishment for the mother vessel 16. Furthermore, the use of the wireless charging / discharging unit 2 allows for convenient and efficient energy replenishment without the need for wiring after the hull 1 is connected to the mother vessel 16.

[0034] Furthermore, the overall shape of hull 1 can be designed as follows: Figure 1 As shown, the navigation function of the hull 1 is achieved through the design of its outer shell. For example, a cavity can be set inside the outer shell, and a controllable water inlet and outlet system can be set inside the cavity to control the stability and draft of the hull 1.

[0035] Optionally, the wireless charging and discharging unit 2 includes a charging and discharging electromagnetic induction coil 6.

[0036] Specifically, such as Figure 2 As shown, the charging and discharging electromagnetic induction coil 6 is installed inside the front end of the hull 1; correspondingly, the mother ship 16 can use the electromagnetic induction coil to receive the electrical energy of the energy storage unit 4 of the separation power unit.

[0037] Furthermore, by controlling wireless charging, Mothership 16 can also slowly charge the separate power unit.

[0038] Optionally, the connecting mechanism 3 includes an electric telescopic component 7 and a locking pin 8. The electric telescopic component 7 is disposed inside the hull 1, and the locking pin 8 is connected to the telescopic end of the electric telescopic component 7. The locking pin 8 slides through the hull 1, and when the telescopic end of the electric telescopic component 7 extends, the locking pin 8 can extend out of the hull 1.

[0039] Specifically, such as Figure 3 As shown, the electric telescopic component 7 can be an electric cylinder. Its housing end is fixed to the inner wall of the hull 1. Its telescopic end can retract and extend. When extended, it drives the locking pin 8 to insert into the connecting component on the mother ship 16 to achieve stable docking with the mother ship 16. When retracted, it releases the lock, which is used to separate the electric ship's separate power unit from the mother ship 16.

[0040] In this embodiment, four electric telescopic components 7 are provided, and four locking pins 8 are radially distributed and extend and retract.

[0041] Optionally, the energy storage unit 4 includes a battery 9.

[0042] Specifically, the energy storage unit 4 stores electrical energy through the battery 9 in order to replenish the mother ship 16 with electrical energy.

[0043] Optionally, the drive mechanism includes a drive motor 10, a propeller shaft 11, and propeller blades 12. The drive motor 10 is located inside the stern of the hull 1, and the output end of the drive motor 10 is connected to the propeller shaft 11. The propeller shaft 11 extends out of the hull 1 and is connected to multiple propeller blades 12.

[0044] Specifically, such as Figure 4 As shown, the drive motor 10 can drive the propeller shaft 11 and the propeller blades 12 on the propeller shaft 11 to rotate, thereby propulsing the hull 1 and enabling the hull 1 to travel in the water, charge the mother ship 16, and return to port.

[0045] Optionally, it also includes a navigation and positioning unit 18, which is disposed inside the hull 1 and includes a navigation module and a sonar positioning module 14.

[0046] Specifically, such as Figure 5 As shown, the navigation and positioning unit 18 is located inside the hull 1 near the front end and near the connecting mechanism 3. The navigation module is integrated into the controller 13, and the sonar positioning module 14 is fixed to one side of the controller 13. The controller 13 is the controller for the entire separate power unit for the electric ship. The navigation module is used for navigation, and the sonar positioning module 14 is used for positioning when the separate power unit for the electric ship docks with the mother ship 16. The sonar positioning module 14 is used to locate the insertion slot on the mother ship 16.

[0047] Optionally, the energy storage unit 4 also includes a plurality of battery storage conduits 15 arranged along the length of the hull 1, and the battery 9 is disposed in the battery storage conduits 15.

[0048] Specifically, such as Figure 6 and Figure 7 As shown, the storage battery 9 is a cylindrical battery, which is installed in multiple battery storage conduits 15 inside the hull 1. The multiple battery storage conduits 15 are arranged circumferentially inside the hull 1.

[0049] In this embodiment, battery 9 is a 4680 battery.

[0050] like Figure 8 As shown, this utility model also provides an electric boat, comprising:

[0051] Mothership 16 is equipped with batteries, a propulsion system, and a connection structure.

[0052] The aforementioned detachable power unit for electric ships is detachably connected to the connecting structure via the connecting mechanism 3.

[0053] Specifically, the mother ship 16 is an electric vessel equipped with its own battery and propulsion system, and has a set range. The connection structure on the mother ship 16 is used to connect with the connection mechanism 3 when the aforementioned separate power unit for electric vessels is connected to it. Since the aforementioned separate power unit for electric vessels can charge the battery of the mother ship 16 after being connected to the mother ship 16, the battery of the mother ship 16 does not need to be too large, and the mother ship 16 can have more cargo space and cargo capacity. At the same time, the mother ship 16 can charge during operation to achieve continuous energy replenishment.

[0054] Optionally, the connection structure includes a plug groove located at the stern of the mother ship 16 and a plug ring 17 located on the inner circumference of the plug groove. The plug groove can accommodate the insertion of part of the hull 1, and the plug ring 17 has multiple plug holes that can accommodate the insertion of the locking pin 8 of the connection mechanism 3.

[0055] Specifically, the shape of the insertion slot is adapted to the shape of the insertion part of the separate power unit for electric ships. A tapered guide can be provided at the opening of the insertion slot to facilitate positioning and insertion. The insertion ring 17 is provided with an insertion hole, which can also be provided with a tapered guide hole to facilitate the insertion of the locking pin 8. After the locking pin 8 is inserted, the separate power unit for electric ships is stably connected to the mother ship 16.

[0056] Optionally, the separate power unit for electric ships is provided with at least two.

[0057] Specifically, at least two of the aforementioned separate power units for electric ships can achieve continuous replenishment of the dual separate power units in a cyclical manner.

[0058] In this embodiment, the stern of the mother ship 16 is provided with two plug slots, which can be connected to the two aforementioned separate power units for electric ships.

[0059] In summary, the electric vessel provided by this utility model has a mother ship 16 and the aforementioned detachable power unit for electric vessels. In use, the aforementioned detachable power unit for electric vessels can be detached from the mother ship 16 to travel and charge; the aforementioned fully charged detachable power unit for electric vessels can be connected to the mother ship 16 to complete the power unit replacement. This replacement process can be carried out in port or while the mother ship 16 is in motion.

[0060] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A detachable power unit for electric ships, characterized in that, include: The hull is capable of navigating in water. From front to back, the hull is provided with a wireless charging and discharging unit, a connection mechanism, an energy storage unit, and a drive mechanism. The connection mechanism is used to detachably connect to the connection structure of the electric vessel, which serves as the mother ship. The energy storage unit is used to store electrical energy. The wireless charging and discharging unit is used to connect the energy storage unit to the battery of the electric vessel for charging and discharging. The drive mechanism is connected to the energy storage unit and is used to drive the hull.

2. The separable propulsion system for electric ships according to claim 1, characterized in that, The wireless charging and discharging unit includes a charging and discharging electromagnetic induction coil.

3. The separable propulsion system for electric ships according to claim 1, characterized in that, The connecting mechanism includes an electric telescopic component and a locking pin. The electric telescopic component is disposed inside the hull, and the locking pin is connected to the telescopic end of the electric telescopic component. The locking pin slides through the hull, and when the telescopic end of the electric telescopic component extends, the locking pin can extend out of the hull.

4. The separable propulsion system for electric ships according to claim 1, characterized in that, The energy storage unit includes a battery.

5. The separable propulsion system for electric ships according to claim 1, characterized in that, The drive mechanism includes a drive motor, a propeller shaft, and propeller blades. The drive motor is located inside the stern of the hull, and its output end is connected to the propeller shaft. The propeller shaft extends out of the hull and is connected to multiple propeller blades.

6. The separable propulsion system for electric ships according to claim 1, characterized in that, It also includes a navigation and positioning unit, which is disposed in the hull and includes a navigation module and a sonar positioning module.

7. The separable propulsion system for electric ships according to claim 4, characterized in that, The energy storage unit also includes multiple battery storage conduits arranged along the length of the hull, and the battery is disposed within the battery storage conduits.

8. An electric vessel, characterized in that, include: Mothership, which is equipped with batteries, a propulsion system and a connection structure; The detachable propulsion unit for electric ships according to any one of claims 1-7, wherein the detachable propulsion unit for electric ships is detachably connected to the connecting structure via the connecting mechanism.

9. The electric vessel according to claim 8, characterized in that, The connection structure includes a plug groove located at the stern of the mother ship and a plug ring located on the inner circumference of the plug groove. The plug groove can accommodate a portion of the hull being inserted, and the plug ring has multiple plug holes that can accommodate the insertion of the locking pin of the connection mechanism.

10. The electric vessel according to claim 8, characterized in that, The separate power unit for electric ships is provided with at least two.