A hydrofoil-propelled oscillating ocean energy utilization device

Abstract

An oscillating ocean energy utilization device propelled by hydrofoils, which relates to an ocean energy utilization device. The present invention is intended to solve the problems of existing ocean energy utilization devices, such as the large space occupied by the ballast tank and the large wave loads it is subjected to. The present invention includes two head and tail components (A), multiple body components (B) and multiple connection structures (C). Two adjacent body components (B) are connected by a connection structure (C), and the two ends of the multiple body components (B) are respectively connected to the head and tail components (A) by the connection structure (C); the hydrofoils of the head and tail components can adjust the forward direction of the entire device. The hydrofoils of the body components can adjust the force in the heave direction of a single independent component. Under the action of ocean waves, the present invention can move at a low speed in a limited sea area; the power generation module of the oscillating structure enables it to have functions such as long-term monitoring of remote sea areas. The present invention is used to generate electricity using ocean energy.

Description

Technical Field

[0001] The present invention relates to an ocean energy utilization device, in particular to an oscillating ocean energy utilization device propelled by hydrofoils, and belongs to the technical field of oscillating ocean energy utilization. Background Art

[0002] Traditional underwater vehicles are propelled by fossil energy, but due to the limited energy they carry, the endurance of underwater vehicles is constrained by fossil energy, making it impossible to conduct long-term positioning and monitoring of large sea areas.

[0003] With the continuous development of the marine energy field, underwater navigation devices with hydrofoils not only have good stability. In addition, the hydrofoils can absorb wave energy and provide power for the underwater navigation devices. For example: the patent publication number is CN207510694U, and the patent name is a utility model patent for a differential hydrofoil wave propeller. This patent obtains the vertical flow velocity of the waves and the rotation angle of each differential hydrofoil in real time, and adjusts the power load through the different structures of the load controller to control the movement speed of each hydrofoil, so that each differential hydrofoil performs differential rotation around the fixed axis, achieving efficient navigation and power generation, and flexible steering. This patent realizes the forward movement of the boat by differentially adjusting the hydrofoils.

[0004] For example, in the publication CN215475596U, "A Frequency-Adjustable Wave Energy-Driven Unmanned Catamaran," Wang Liguo et al. propose a ballast tank with adjustable water capacity. While this allows for the adjustment of the floating frequency of the unmanned catamaran by varying the water capacity, the tank's large volume of water occupies a significant space, hindering the rational use of internal space. This, in turn, hinders the deployment and installation of monitoring equipment and the detection of small areas of the sea.

[0005] In the patent application CN115506941A, "A Float for a Wave Energy Power Generation Device," filed by Tian Qian et al., the float generates electricity driven by waves but is subject to significant wave loads. These high wave loads exert significant loads on the internal components of the device, impacting the stability and safety of the overall structure.

[0006] In summary, existing ocean energy utilization devices have the problems of large space occupied by the ballast tank and large wave loads. Summary of the Invention

[0007] The purpose of the present invention is to solve the problems of the existing ocean energy utilization devices, such as the large space occupied by the ballast tank and the large wave loads they are subjected to, and further provide an oscillating ocean energy utilization device propelled by hydrofoils.

[0008] The technical solution of the present invention is: an oscillating ocean energy utilization device propelled by hydrofoils includes two head and tail components, multiple body components and multiple connecting structures, wherein two adjacent body components are connected by a connecting structure, and the two ends of the multiple body components are respectively connected to the head and tail components by connecting structures; wherein the head and tail components include head and tail shells, head and tail hydrofoils, head and tail power generation modules, and head and tail angle of attack adjustment components, the cross-sectional shape of the head and tail shells is an isosceles triangle, the head and tail hydrofoils are installed at the top corners of the head and tail shells, the head and tail angle of attack adjustment components are installed in the head and tail shells and have the function of adjusting the angle of attack of the head and tail hydrofoils, and the head and tail power generation modules are embedded in the head and tail shells; the body component includes a body shell, two body hydrofoils, two body angle of attack adjustment components and a body power generation module, the cross-sectional shape of the body shell is a rectangle, the two body hydrofoils are symmetrically installed on the left and right sides of the body shell, the two body angle of attack adjustment components are installed in the body shell and are respectively connected to one body hydrofoil to realize the adjustment of the angle of attack of the body hydrofoil, and the body power generation module is embedded in the body shell and is located between the two body angle of attack adjustment components; the connecting structure is a connecting structure adjustable in the length direction.

[0009] Furthermore, the cross-section of the head and tail hydrofoils is triangular, and the bottom edge portions of the head and tail hydrofoils are embedded in the top corners of the head and tail shells.

[0010] Furthermore, the head and tail angle of attack adjustment assembly includes head and tail motors, a bevel gear pair and head and tail hydrofoil shafts. The head and tail motors are horizontally installed on the lower end surfaces of the head and tail shells, and the rotatable head and tail hydrofoil shafts are vertically penetrated into the bottom edge parts of the head and tail hydrofoils. The output shafts of the head and tail motors are connected to the lower end surfaces of the head and tail hydrofoil shafts through a bevel gear pair.

[0011] Furthermore, the head and tail components also include a battery, a camera and a control module, and the battery, the camera and the control module are installed in the head and tail shells.

[0012] Furthermore, the longitudinal cross-section of the body hydrofoil is in the shape of a water droplet.

[0013] Furthermore, each body angle of attack adjustment assembly includes a body motor base, a body motor and a body motor connecting rod. The body motor base is installed in the body shell, the body motor is installed on the body motor base, one end of the body motor connecting rod is connected to the output shaft of the body motor, and the other end of the body motor connecting rod passes through the body shell and is installed in the body hydrofoil, and the adjustment of the body hydrofoil angle of attack is achieved under the drive of the body motor.

[0014] Furthermore, the structures of the head and tail power generation modules and the body power generation module are the same. Both the head and tail power generation modules and the body power generation modules include a bottom disc, a metal rod, a stator permanent magnet pole, a rotor coil, a spring and a power generation shell. The lower end of the metal rod is fixedly connected to the bottom disc, and the upper part of the metal rod extends upward after passing through the bottom end of the body shell. The stator permanent magnet pole is installed on the upper part of the inner wall of the metal rod, the rotor coil is mounted on the metal rod located in the body shell, and the power generation shell is mounted on the rotor coil. The lower end of the spring is connected to the upper end of the metal rod, and the upper end of the spring is connected to the inner wall of the upper end face of the power generation shell.

[0015] Furthermore, the metal rod and the rotor coil can move up and down in the axial direction.

[0016] Furthermore, the connection structure includes two connection units, the two ends of the two connection units are respectively connected to the two ends of the bottom edge of the head and tail components and the side end faces of the adjacent body components, or the two ends of the two connection units are respectively connected to the side end faces of the two adjacent body components, each connection unit includes an adjustable end connector and a connection plate, the left and right ends of the connection plate are respectively connected to one end of an adjustable end connector, and the other end of the adjustable end connector is connected to the head and tail components or the body components.

[0017] Furthermore, the adjustable end connecting member includes a fixed plate, a sliding plate, a sliding pin and an elastic member, wherein the cross-sectional shapes of the fixed plate and the sliding plate are both groove-shaped, an elongated hole is opened on the fixed plate along its length direction, the sliding pin is inserted into the sliding plate, and the pin head of the sliding pin passes through the elongated hole, one end of the elastic member is sleeved on the sliding pin, and the other end of the elastic member is fixedly mounted on one end of the bottom of the groove of the fixed plate.

[0018] Compared with the prior art, the present invention has the following effects:

[0019] 1. The hydrofoil-propelled oscillating ocean energy utilization device of the present invention has the ability to generate electricity and maintain stability in a limited area of ​​ocean under the influence of ocean waves, making it suitable for monitoring small areas of ocean for long periods of time. However, this device also has many problems, such as the high rigidity and strength requirements of the connecting structure during power generation and the limitation of its movement due to waves.

[0020] 2. The hydrofoil-propelled oscillating ocean energy utilization device of the present invention converts wave energy into electrical energy and power through an oscillating device (referring to the head and tail power generation module A-3 and the body power generation module B-3) and auxiliary hydrofoils, so that the present invention has extremely strong endurance.

[0021] 3. The oscillating device of the present invention can generate electricity using wave motion, generating enough power to power underwater vehicle positioning, monitoring, detection, and other equipment. The present invention can also effectively save energy and reduce carbon dioxide emissions.

[0022] 4. The present invention utilizes the potential energy difference between independent components (referring to the stator permanent magnet pole D-3, the rotor coil D-4, the spring D-5 and the power generation shell D-6) and the metal rod with a bottom disk to generate electricity, and the power generation equipment is inside the independent mechanism. Therefore, the power generation module of the present invention is subjected to smaller wave loads, so that the internal components of the device are subjected to smaller load impacts, thereby improving the overall structural stability and safety of the power generation device.

[0023] 5. The present invention changes the rudder direction of the device and provides thrust and force in the heave direction of the independent component by changing the angle of attack of the hydrofoil.

[0024] 6. The present invention arranges hydrofoils vertically at the head and tail components, and controls the change of the hydrofoil attack angle through a motor, thereby controlling the forward direction of the entire device.

[0025] 7. The present invention employs horizontal hydrofoils on the body member, one on each side of the independent member, with the cross-section perpendicular to the body member surface. This effectively utilizes the heave motion of the device in waves to provide forward thrust.

[0026] 8. When ocean waves act on the present invention, the device can control the hydrofoil at the body component through a motor to change the angle between the hydrofoil and the horizontal plane, so as to adjust the force on the heave direction of the independent component.

[0027] 9. The electricity generated by the head and tail power generation module A-3 and the body power generation module B-3 of the present invention can be stored in the battery to provide power for equipment such as cameras, positioning devices, motors, etc., to achieve monitoring and other functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is the overall structural diagram of the present invention.

[0029] Figure 2 It is a cross-sectional schematic diagram of the head and tail power generation module A-3 and the body power generation module B-3.

[0030] Figure 3 It is a structural schematic diagram of an adjustable end connector.

[0031] Figure 4 yes Figure 3 side view.

[0032] Figure 5 It is a schematic diagram of the interior of the head and tail components.

[0033] Figure 6 It is a schematic diagram of the internal structure of the body. DETAILED DESCRIPTION

[0034] Specific implementation method 1: Combination Figures 1 to 6Describing this embodiment, a hydrofoil-propelled oscillating ocean energy utilization device of this embodiment includes two head and tail components A, multiple body components B and multiple connection structures C. Two adjacent body components B are connected by a connection structure C, and the two ends of the multiple body components B are respectively connected to the head and tail components A through the connection structure C; wherein, the head and tail components A include head and tail shells A-1, head and tail hydrofoils A-2, head and tail power generation modules A-3, and head and tail angle of attack adjustment components. The cross-sectional shape of the head and tail shells A-1 is an isosceles triangle, the head and tail hydrofoils A-2 are installed at the top corners of the head and tail shells A-1, and the head and tail angle of attack adjustment components are installed in the head and tail shells A-1 and adjust the head and tail hydrofoils A-2. The head and tail power generation modules A-3 are embedded in the head and tail shells A-1; the body component B includes a body shell B-1, two body hydrofoils B-2, two body angle of attack adjustment components and a body power generation module B-3. The cross-sectional shape of the body shell B-1 is rectangular, and the two body hydrofoils B-2 are symmetrically installed on the left and right sides of the body shell B-1. The two body angle of attack adjustment components are installed in the body shell B-1 and are respectively connected to one body hydrofoil B-2 to adjust the angle of attack of the body hydrofoil B-2. The body power generation module B-3 is embedded in the body shell B-1 and is located between the two body angle of attack adjustment components; the connection structure C is a connection structure that is adjustable in the length direction.

[0035] In this embodiment, the electricity generated by the power generation module can be used not only to enable the motor to output torque to control the swing angle of the hydrofoil, but also to store energy in the battery.

[0036] In this embodiment, the swing direction of the fore and aft hydrofoils A-2 can be adjusted by adjusting the fore and aft angle of attack adjustment components, thereby adjusting the forward direction of the entire device.

[0037] The two body hydrofoils B-2 of the body component of this embodiment can adjust the force in the heave direction of a single independent component under the adjustment of their respective body angle of attack adjustment components.

[0038] The characteristics of the present invention are: it can utilize ocean energy for long-term power generation; under the action of ocean waves, it can move at low speed in a limited sea area; the oscillating structure of the power generation module enables it to have functions such as long-term monitoring of remote sea areas.

[0039] Specific implementation method 2: Combination Figure 1 and Figure 5 To describe this embodiment, the cross-section of the hydrofoil A-2 of this embodiment is triangular, and the bottom edge of the hydrofoil A-2 is embedded in the top corner of the hydrofoil A-1.

[0040] With this arrangement, the triangular head and tail hydrofoils have a small top angle resistance, which is convenient for fast travel and also saves power. The other components and connection relationships are the same as those in the first embodiment.

[0041] The bottom edge of the bow and tail hydrofoils A-2 of this embodiment is embedded in the top corner of the bow and tail shells A-1, which is convenient for connection with the bow and tail angle of attack adjustment components. The angle of attack can be adjusted flexibly without taking up a lot of space.

[0042] Specific implementation method three: Combination Figure 5 This embodiment describes the fore-aft angle of attack adjustment assembly, which includes fore-aft motors A-4, helical gear pairs A-5, and fore-aft hydrofoil shafts A-6. The fore-aft motors A-4 are mounted horizontally on the lower end of the fore-aft housing A-1. The rotatable fore-aft hydrofoil shafts A-6 extend vertically through the base of the fore-aft hydrofoil A-2. The output shafts of the fore-aft motors A-4 are connected to the lower end of the fore-aft hydrofoil shafts A-6 via the helical gear pairs A-5. A battery is connected to the fore-aft motors A-4 via cables.

[0043] With this arrangement, the control system controls the rotation of the fore and aft motors A-4, which, through the helical gear pair A-5, steer and transmit power to the fore and aft hydrofoil shafts A-6. The fore and aft hydrofoil shafts A-6 drive the fore and aft hydrofoils A-2 to rotate. Other components and connections are the same as in Specific Embodiments 1 or 2.

[0044] The rotation angles of the head and tail motors A-4 in this embodiment are controlled by the control module.

[0045] Specific implementation method four: Combination Figure 1 and Figure 5 To explain this embodiment, the head and tail components A of this embodiment further include a battery, a camera and a control module, and the battery, the camera and the control module are installed in the head and tail housing A-1.

[0046] Such an arrangement facilitates flexible control of the angle of attack of the fore and aft hydrofoils A-2 according to actual conditions. Other components and connection relationships are the same as those in the first, second or third specific embodiments.

[0047] Specific implementation method five: Combination Figure 1 and Figure 6 To explain this embodiment, the body hydrofoil B-2 has a teardrop-shaped longitudinal cross-section. This arrangement facilitates adjustment of the angle of attack, reducing drag. The remaining components and connections are identical to those in Specific Embodiments 1, 2, 3, or 4.

[0048] Specific implementation method six: combination Figure 1 and Figure 6To describe this embodiment, each body angle of attack adjustment component of this embodiment includes a body motor base B-3, a body motor B-4 and a body motor connecting rod B-5. The body motor base B-3 is installed in the body shell B-1, and the body motor B-4 is installed on the body motor base B-3. One end of the body motor connecting rod B-5 is connected to the output shaft of the body motor B-4, and the other end of the body motor connecting rod B-5 passes through the body shell B-1 and is installed in the body hydrofoil B-2, and the adjustment of the angle of attack of the body hydrofoil B-2 is achieved under the drive of the body motor B-4.

[0049] With this arrangement, the body motor B-4 drives the body motor connecting rod B-5 through the body motor connecting rod B-5 to adjust the angle of attack. Other components and connection relationships are the same as those of the specific embodiments 1, 2, 3, 4 or 5.

[0050] In this embodiment, the start and stop and speed control of the body motor B-4 are all achieved through the controller. At the same time, a positioning device is placed in the body component B, and the body motor B-4, the positioning device, the camera and the battery are connected by wires.

[0051] The positioning device is used to accurately determine the specific position of the oscillating ocean energy utilization device of the present invention. The camera can transmit the image of the seabed in real time. The battery provides power for the present invention. Various actions of the present invention are uniformly controlled by the controller.

[0052] Specific implementation method seven: combination Figure 2To illustrate this embodiment, the head and tail power generation modules A-3 and the body power generation module B-3 of this embodiment have the same structure. The head and tail power generation modules A-3 and the body power generation module B-3 both include a bottom disc D-1, a metal rod D-2, a stator permanent magnet pole D-3, a rotor coil D-4, a spring D-5 and a power generation shell D-6. The lower end of the metal rod D-2 is fixedly connected to the bottom disc D-1, and the upper part of the metal rod D-2 passes through the bottom end of the body shell B-1 and extends upward. The stator permanent magnet pole D-3 is installed on the upper part of the inner wall of the metal rod D-2, the rotor coil D-4 is mounted on the metal rod D-2 located in the body shell B-1, and the power generation shell D-6 is mounted on the rotor coil D-4. The lower end of the spring D-5 is connected to the upper end of the metal rod D-2, and the upper end of the spring D-5 is connected to the inner wall of the upper end face of the power generation shell D-6. With this arrangement, the head and tail power generation modules A-3 and the body power generation module B-3 primarily perform heave and sink motions under the influence of ocean waves, while the metal rods also heave and sink with the waves. During the ascent of the head and tail power generation modules A-3 and the body power generation module B-3, because the motor controls the hydrofoils perpendicular to the sea surface, the water will produce greater resistance to the disks, which are under greater pressure, than to the main body of the component. This will create a speed difference between the metal rods and the stator permanent magnet poles, and thus a displacement difference, causing the rotor coils inside the metal rods to cut through the magnetic induction lines, generating electricity to meet the power supply needs of the power equipment. Similarly, electricity will also be generated during descent. When ocean waves act, the motors can control the hydrofoils on the body component, changing the angle between the hydrofoils and the water surface to adjust the force in the heave direction of the component, generating a greater speed difference and displacement difference. Other components and connection relationships are the same as those in Specific Embodiments 1, 2, 3, 4, 5, or 6.

[0053] This embodiment improves energy conversion efficiency by increasing the weight of the bottom disc.

[0054] Specific implementation method eight: combination Figure 2 This embodiment will be described. In this embodiment, the metal rod D-2 and the rotor coil D-4 are movable up and down in the axial direction.

[0055] Such arrangement facilitates full utilization of ocean waves and smooth realization of heave and sink action. Other components and connection relationships are the same as those of the first, second, third, fourth, fifth, sixth or seventh embodiments.

[0056] Specific implementation method nine: Combination Figure 1 、 Figure 3 and Figure 4To illustrate this embodiment, the connection structure C of this embodiment includes two connection units, the two ends of which are respectively connected to the two ends of the bottom edge of the head and tail components A and the side end faces of the adjacent body components B, or the two ends of the two connection units are respectively connected to the side end faces of two adjacent body components B. Each connection unit includes an adjustable end connector and a connection plate C-1. The left and right ends of the connection plate C-1 are respectively connected to one end of an adjustable end connector, and the other end of the adjustable end connector is connected to the head and tail components A or the body component B. This arrangement makes the connection more flexible, making the connection between multiple body components B of the present invention smoother. Other components and connection relationships are the same as any one of the specific embodiments one to eight.

[0057] Specific implementation method ten: Combination Figure 1 、 Figure 3 and Figure 4 To describe this embodiment, the adjustable end connector of this embodiment includes a fixed plate C-3, a sliding plate C-4, a sliding latch C-5 and an elastic member C-6. The cross-sectional shapes of the fixed plate C-3 and the sliding plate C-4 are both groove-shaped. An elongated hole C-7 is provided on the fixed plate C-3 along its length. The sliding latch C-5 is inserted into the sliding plate C-4, and the pin head of the sliding latch C-5 passes through the elongated hole C-7. One end of the elastic member C-6 is mounted on the sliding latch C-5, and the other end of the elastic member C-6 is fixedly mounted on one end of the bottom of the groove of the fixed plate C-3.

[0058] This arrangement allows the adjustable end connector to extend and retract along the length of the present invention. Because both the fixed plate C-3 and the sliding plate C-4 have a groove-shaped cross-section, the present invention does not experience longitudinal displacement. The remaining components and connections are identical to those of any of the first to ninth embodiments.

[0059] Combine Figures 1 to 6 The working principle of the present invention is described:

[0060] The metal rod of the present invention is suspended by springs at the middle part of the head and tail power generation module A-3 and the body power generation module B-3, and the bottom of the metal rod is equipped with a bottom disc to increase the weight.

[0061] In the connection structure of the present invention, the sliding plate is fixed inside the fixed plate along the long direction of the device, and the latch is fixed to the sliding plate at the notch after being connected to the spring.

[0062] The speed difference generated by the heaving motion between the metal rod 4 and the independent component of the present invention can cut the magnetic flux lines to generate electricity.

[0063] Under the action of ocean waves, the hydrofoil-propelled oscillating ocean energy utilization device will provide power through the hydrofoils of the body components. At the same time, the hydrofoils of the head and tail components will appropriately change direction to keep it within the specified area and realize the monitoring function that should be realized in the area.

[0064] Under the action of ocean waves, independent components can generate electricity by rising and sinking with the waves, which can provide power for various equipment on the device and enable the device to work for a long time.

[0065] Under the action of ocean waves, the motor can drive the gear on the motor connecting rod to rotate, changing the posture of the hydrofoils at the bow and stern components, thereby changing the rudder direction of the device.

[0066] The main components are connected by a long connecting structure to accommodate the device's heave and sink motion within a wide wavelength range, fully utilizing wave energy and improving power generation efficiency. The main components rely on the connecting members to constrain lateral movement, while the springs within the connecting members constrain longitudinal movement.

[0067] The principle of the hydrofoil-propelled oscillating ocean energy harnessing device, which captures wave energy through the stator's permanent magnet poles, is as follows: the device primarily heaves and sinks under the influence of ocean waves, and the metal rod also heaves and sinks with the waves. During the device's ascent, because the motor controls the hydrofoil perpendicular to the sea surface, the water exerts greater resistance on the disc, which is under greater pressure, than on the main component. This creates a speed difference between the metal rod and the stator's permanent magnet poles, and thus a displacement difference. This causes the rotor coil inside the metal rod to cut through the magnetic induction lines, generating electricity to meet the power supply. Similarly, during the descent, electricity is also generated.

[0068] When ocean waves act, the device can use motors to control the hydrofoils at the body components, changing the angle between the hydrofoils and the water surface to adjust the force in the component's heave and sink directions, generating greater speed and displacement differences.

[0069] Although the present invention has been disclosed above with reference to preferred embodiments, this is not intended to limit the present invention. Those skilled in the art may also make other changes within the spirit of the present invention, and apply the present invention to fields not mentioned herein. Of course, these changes made in accordance with the spirit of the present invention should be included in the scope of protection claimed by the present invention.

Claims

1. A hydrofoil-propelled oscillating ocean energy utilization device, characterized by: It includes two head and tail components (A), multiple body components (B) and multiple connection structures (C). Two adjacent body components (B) are connected by a connection structure (C), and both ends of the multiple body components (B) are connected to the head and tail components (A) through the connection structure (C). The nose and tail components (A) include nose and tail shells (A-1), nose and tail hydrofoils (A-2), nose and tail power generation modules (A-3), and nose and tail angle of attack adjustment assemblies. The cross-section of the nose and tail shells (A-1) is an isosceles triangle. The nose and tail hydrofoils (A-2) are installed at the top corners of the nose and tail shells (A-1). The nose and tail angle of attack adjustment assemblies are installed in the nose and tail shells (A-1) and adjust the angle of attack of the nose and tail hydrofoils (A-2). The nose and tail power generation modules (A-3) are embedded in the nose and tail shells (A-1). The head and tail power generation module (A-3) and the body power generation module have the same structure. Both the head and tail power generation module (A-3) and the body power generation module include a bottom disk (D-1), a metal rod (D-2), a stator permanent magnet pole (D-3), a rotor coil (D-4), a spring (D-5) and a power generation shell (D-6). The lower end of the metal rod (D-2) is fixedly connected to the bottom disk (D-1), and the upper part of the metal rod (D-2) passes through the body shell (B-1). ), the stator permanent magnet pole (D-3) is mounted on the upper inner wall of the metal rod (D-2), the rotor coil (D-4) is sleeved on the metal rod (D-2) located in the body shell (B-1), the power generation shell (D-6) is sleeved on the rotor coil (D-4), the lower end of the spring (D-5) is connected to the upper end of the metal rod (D-2), and the upper end of the spring (D-5) is connected to the inner wall of the upper end surface of the power generation shell (D-6); The head and tail power generation modules (A-3) and the body power generation modules mainly move up and down under the action of ocean waves, and the metal rods also move up and down with the waves; The hydrofoils on the body components are controlled by motors to change the angle between the hydrofoils and the water surface, thereby adjusting the force in the heave direction of the components and generating greater speed and displacement differences. The body component (B) includes a body shell (B-1), two body hydrofoils (B-2), two body angle of attack adjustment assemblies, and a body power generation module. The cross-section of the body shell (B-1) is rectangular. The two body hydrofoils (B-2) are symmetrically mounted on the left and right sides of the body shell (B-1). The two body angle of attack adjustment assemblies are mounted in the body shell (B-1) and are respectively connected to one body hydrofoil (B-2) to adjust the angle of attack of the body hydrofoil (B-2). The body power generation module is embedded in the body shell (B-1) and located between the two body angle of attack adjustment assemblies. The connecting structure (C) is adjustable in the length direction.

2. The hydrofoil-propelled oscillating ocean energy utilization device according to claim 1, characterized in that: The cross-section of the head and tail hydrofoils (A-2) is triangular, and the bottom edge of the head and tail hydrofoils (A-2) is embedded in the top corner of the head and tail shells (A-1).

3. The hydrofoil-propelled oscillating ocean energy utilization device according to claim 1 or 2, characterized in that: The nose and tail angle of attack adjustment assembly includes nose and tail motors (A-4), a bevel gear pair (A-5) and nose and tail hydrofoil shafts (A-6). The nose and tail motors (A-4) are horizontally mounted on the lower end surface of the nose and tail housing (A-1). The rotatable nose and tail hydrofoil shafts (A-6) are vertically inserted into the bottom edge portion of the nose and tail hydrofoils (A-2). The output shafts of the nose and tail motors (A-4) are connected to the lower end surface of the nose and tail hydrofoil shafts (A-6) via the bevel gear pair (A-5).

4. The hydrofoil-propelled oscillating ocean energy utilization device according to claim 3, characterized in that: The head and tail components (A) also include a battery, a camera and a control module, which are installed in the head and tail shell (A-1).

5. The hydrofoil-propelled oscillating ocean energy utilization device according to claim 1 or 4, characterized in that: The longitudinal cross-section of the body hydrofoil (B-2) is in the shape of a water droplet.

6. The hydrofoil-propelled oscillating ocean energy utilization device according to claim 5, characterized in that: Each body angle of attack adjustment component includes a body motor base (B-3), a body motor (B-4) and a body motor connecting rod (B-5). The body motor base (B-3) is installed in the body shell (B-1), and the body motor (B-4) is installed on the body motor base (B-3). One end of the body motor connecting rod (B-5) is connected to the output shaft of the body motor (B-4), and the other end of the body motor connecting rod (B-5) passes through the body shell (B-1) and is installed in the body hydrofoil (B-2). The body hydrofoil (B-2) angle of attack is adjusted under the drive of the body motor (B-4).

7. The hydrofoil-propelled oscillating ocean energy utilization device according to claim 6, characterized in that: The metal rod (D-2) and the rotor coil (D-4) can move up and down in the axial direction.

8. The hydrofoil-propelled oscillating ocean energy utilization device according to claim 7, characterized in that: The connecting structure (C) includes two connecting units, and the two ends of the two connecting units are respectively connected to the two ends of the bottom edge of the head and tail components (A) and the side end surfaces of the adjacent body components (B), or the two ends of the two connecting units are respectively connected to the side end surfaces of the two adjacent body components (B). Each connecting unit includes an adjustable end connecting piece and a connecting plate (C-1), the left and right ends of the connecting plate (C-1) are respectively connected to one end of an adjustable end connecting piece, and the other end of the adjustable end connecting piece is connected to the head and tail member (A) or the body member (B).

9. The hydrofoil-propelled oscillating ocean energy utilization device according to claim 8, characterized in that: The adjustable end connecting member includes a fixed plate (C-3), a sliding plate (C-4), a sliding latch (C-5) and an elastic member (C-6). The cross-sections of the fixed plate (C-3) and the sliding plate (C-4) are both groove-shaped. The fixed plate (C-3) is provided with an elongated hole (C-7) along its length. The sliding latch (C-5) is inserted into the sliding plate (C-4), and the pin head of the sliding latch (C-5) passes through the elongated hole (C-7). One end of the elastic member (C-6) is sleeved on the sliding latch (C-5), and the other end of the elastic member (C-6) is fixedly mounted on one end of the bottom of the groove of the fixed plate (C-3).

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