Power surfboard

Abstract

The utility model discloses a powered surfboard which comprises a propeller (3) and a fuel engine (1). The motor (2) is provided with a rotor, and the rotor is directly or indirectly connected with the crankshaft; the first output end of the controller (6) is electrically connected with the fuel engine (1), the second output end of the controller (6) is electrically connected with the motor (2), and the controller (6) is used for determining whether the motor (2) provides auxiliary power for the fuel engine (1) by superposing torque to a crankshaft or not; and the power battery (5) is electrically connected with the motor (2) and the controller (6) respectively and is used for supplying power to the motor (2) and the controller (6). Compared with the prior art, the powered surfboard has the advantages that the powered surfboard can keep strong power and good cruising ability, can meet the requirement for environmental protection, and can solve the problem that a clutch is not durable.

Description

TECHNICAL FIELD

[0001] The utility model relates to a surfing sports technical field, concretely relates to a power surfboard. BACKGROUND

[0002] Traditional surfboards rely on natural sea waves, and the use conditions are limited. Although the pure electric surfboard is environmentally friendly, the power output and endurance capability are insufficient in some cases. The fuel surfboard is powerful and has strong endurance capability, but it is noisy, polluting and not environmentally friendly. Therefore, it is necessary to develop a power surfboard that can maintain strong power and good endurance capability, and also consider environmental protection needs.

[0003] According to the investigation, the Chinese invention application with publication number CN109538350A discloses "engine for water sports equipment, working method thereof and power surfboard", the engine for water sports equipment comprises: a gear system cooperating with a crankcase; the gear system comprises: a super-light oil bath type one-way clutch cooperating with the connecting rod of the crankshaft in the crankcase; the super-light oil bath type one-way clutch comprises: a large gear coaxially arranged with the connecting rod of the crankshaft; the large gear is connected with the output shaft end of the starting motor through a gear pair. However, the power surfboard adopts a clutch, and the clutch has the problem of poor durability. Therefore, the problem of poor durability of the clutch also needs to be solved. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is to provide a power surfboard that can maintain strong power and good endurance capability, consider environmental protection needs, and solve the problem of poor durability of the clutch.

[0005] The utility model adopts the technical scheme that a power surfboard comprises

[0006] a propeller;

[0007] a fuel engine, the output end of which has a crankshaft, the crankshaft is drivingly connected with the propeller, and is used for making the propeller generate thrust;

[0008] characterized in that it further comprises

[0009] a motor, having a rotor, the rotor is directly or indirectly connected with the crankshaft;

[0010] a controller, the first output end of which is electrically connected with the fuel engine, the second output end of which is electrically connected with the motor, and the controller is used for determining whether the motor provides auxiliary power to the fuel engine by superimposing torque to the crankshaft;

[0011] a power battery, which is electrically connected with the motor and the controller respectively, and is used for supplying power to the motor and the controller.

[0012] Preferably, a connecting shaft is connected between the crankshaft of the fuel engine and the input end of the propeller, and the rotor of the motor is connected with the connecting shaft. In this way, the rotor of the motor is indirectly connected with the crankshaft.

[0013] In order to reduce the number of motors, the motor is in a first state, which is used as a starting motor, and is used for starting the fuel engine;

[0014] The motor is in a second state, which is used as an electric motor, and is used for providing auxiliary power to the fuel engine.

[0015] In this way, the motor can be used as a starting motor and an electric motor at the same time, which is conducive to reducing the number of motors.

[0016] In order to store energy, the motor is in a third state, which is used as a generator, and is used for charging the power battery.

[0017] Preferably, the motor is in a fourth state, which is in a zero torque state, and only the fuel engine provides power to the propeller.

[0018] In order to facilitate user operation, the power surfboard further comprises a power switch for determining whether the motor enters the first state, and the first input end of the controller is electrically connected with the power switch. By setting the power switch, user operation is facilitated.

[0019] In order to facilitate user operation, the power surfboard further comprises a charging switch for determining whether the motor enters the third state, and the second input end of the controller is electrically connected with the charging switch. By setting the charging switch, user operation is facilitated, and the user can choose whether to charge.

[0020] In order to adjust the forward speed of the power surfboard, the power surfboard further comprises a handle speed adjustment control for adjusting the forward speed of the power surfboard; and the third input end of the controller is electrically connected with the handle speed adjustment control. By setting the handle speed adjustment control, user can manually adjust the forward speed of the power surfboard.

[0021] The propeller can have various forms, and preferably, the propeller has a propeller. The propeller rotates the blades to generate thrust, thereby driving the power surfboard to move forward.

[0022] Alternatively, the propeller can also adopt the form of jet to generate thrust, thereby driving the power surfboard to move forward.

[0023] For safety, the power surfboard comprises a shell with an isolated cabin inside, a fuel tank communicated with an oil inlet of the fuel engine, the fuel engine and the motor are arranged in the isolated cabin, and the fuel tank, the power battery and the controller are arranged in the shell and outside the isolated cabin. The fuel tank is arranged outside the isolated cabin and is separated from the motor and the fuel engine, so that the oil and electricity are separated, the safety is higher, and the risk of fire is reduced.

[0024] Compared with the prior art, the power surfboard adopts a fuel and electric hybrid mode, can maintain strong power and good endurance due to the fuel engine, and can also consider environmental protection requirements due to the adoption of electricity; and the rotor of the motor is connected with the crankshaft, the engine flywheel is replaced, the clutch is cancelled, and the problem of poor durability of the clutch is solved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic view of the embodiment one of the utility model;

[0026] Figure 2 is an exploded view of the embodiment one of the utility model;

[0027] Figure 3 is a schematic view of the component connection relationship in the embodiment one of the utility model;

[0028] Figure 4 is an exploded view of the embodiment two of the utility model. DETAILED DESCRIPTION

[0029] The utility model will be further described in detail below in combination with the embodiment of the drawings.

[0030] Referring to Figures 1-3 , it is the preferred embodiment of the utility model. The power surfboard comprises a fuel engine 1, a motor 2, a propeller 3, a controller 6, a power battery 5 and the like.

[0031] The propeller 3 has a propeller. The propeller rotates the blade and generates thrust, thereby driving the power surfboard to advance.

[0032] The fuel engine 1 has a crankshaft (not shown in the figure) at the output end, which is drivingly connected with the propeller 3 and is used to make the propeller 3 generate thrust.

[0033] The power battery 5 is electrically connected with the motor 2 and the controller 6 respectively and is used to supply power to the motor 2 and the controller 6.

[0034] The motor 2 has a rotor (not shown in the figure), which is directly connected with one end of the crankshaft, and the other end of the crankshaft 11 is connected with the input end of the propeller 3 through the connecting shaft 4 Figure 2). The motor 2 can also be connected to the crankshaft through a planetary gear, a belt, etc. In the first state, the motor 2 functions as a starter motor for starting the fuel engine 1; in the second state, the motor 2 functions as an electric motor for providing auxiliary power to the fuel engine 1; in the third state, the motor 2 functions as a generator for charging the power battery 5; in the fourth state, the motor 2 is in a zero-torque state, and only the fuel engine 1 provides power to the propeller 3.

[0035] Referring to Figure 3 , the power surfboard further comprises a power switch 10 for determining whether the motor 2 enters the first state, a charging switch 20 for determining whether the motor 2 enters the third state, and a handle speed adjustment control 30 for adjusting the forward speed of the power surfboard. In this way, the controller 6 can make the motor 2 be in different states according to the user's operation. The power switch 10 and the charging switch 20, for example, adopt a button or a knob structure, and the handle speed adjustment control 30, for example, adopts a rotating handle or a knob structure.

[0036] Referring to Figure 3 , the first input end of the controller 6 is electrically connected to the power switch 10, the second input end is electrically connected to the charging switch 20, the third input end is electrically connected to the handle speed adjustment control 30, and the fourth input end is electrically connected to the power battery 5; the first output end of the controller 6 is electrically connected to the fuel engine 1, and the second output end is electrically connected to the motor 2, and the controller 6 is used to determine whether the motor 2 provides auxiliary power to the fuel engine 1 by superimposing torque to the crankshaft.

[0037] Referring to Figure 2 , in addition, the power surfboard comprises a housing 100 having an isolated compartment 7 inside, and a fuel tank 8 in communication with the oil inlet of the fuel engine 1, the fuel engine 1 and the motor 2 are arranged in the isolated compartment 7, and the fuel tank 8, the power battery 5 and the controller 6 are located in the housing 100 and outside the isolated compartment 7, so that the oil and electricity are separated by the isolated compartment 7, which is safer and reduces the risk of fire.

[0038] The working process and the use principle are as follows.

[0039] The power surfboard adopts a fuel and electric hybrid power.

[0040] 1) When the user turns on the power switch 10, the motor 2 is in the first state, and the motor 2 functions as a starter motor for starting the fuel engine 1.

[0041] 2) When the user adjusts the handle speed adjustment control 30 to accelerate, the motor 2 is in the second state, and the motor 2 functions as an electric motor for providing auxiliary power to the fuel engine 1.

[0042] 3) When the user opens the charging switch 20, the motor 2 is in the third state, and the motor 2 is used as a generator to charge the power battery 5;

[0043] Alternatively, when the power battery 5 is below the preset value, the controller 6 automatically makes the motor 2 in the third state, and the motor 2 charges the power battery 5.

[0044] 4) The motor 2 also has a zero torque state, at which time only the fuel generator 1 provides power to the propeller 3.

[0045] The motor 2 is used as a starting motor and an engine, which is beneficial to reduce the number of motors. By connecting the rotor of the motor 2 with the crankshaft, the engine flywheel can be replaced, the clutch can be removed, and the problem of the starting clutch not being durable can be solved; at the same time, removing the clutch is beneficial to save installation space, so that the motor can be made larger, and the motor cooling is facilitated, thereby prolonging the service life of the motor.

[0046] Example 2

[0047] Referring to Figure 4 The difference between the power surfboard and example 1 is that the rotor of the motor 2 is indirectly connected with the crankshaft. Specifically, the crankshaft of the fuel engine 1 and the input end of the propeller 3 are connected with a connecting shaft 4, and the rotor of the motor 2 is connected with the connecting shaft 4. The motor can be connected with the connecting shaft 4 through a planetary gear, a belt, etc.

[0048] The working principle and the use process are the same as example 1.

Claims

1. A powered surfboard, comprising a propeller (3) ; a fuel engine (1), the output end of which has a crankshaft, which is drivingly connected with the propeller (3) for making the propeller (3) produce thrust; characterized in that further comprising an electric machine (2), which has a rotor, which is directly or indirectly connected with the crankshaft; a controller (6), the first output end of which is electrically connected with the fuel engine (1), and the second output end of which is electrically connected with the electric machine (2), the controller (6) being used for determining whether the electric machine (2) provides auxiliary power to the fuel engine (1) by superimposing torque to the crankshaft; a power battery (5), which is electrically connected with the electric machine (2) and the controller (6) respectively, and is used for supplying power to the electric machine (2) and the controller (6).

2. The personal watercraft of claim 1, wherein: A connecting shaft (4) is connected between the crankshaft of the fuel engine (1) and the input end of the propeller (3), and the rotor of the electric machine (2) is connected with the connecting shaft (4).

3. The personal watercraft of claim 1, wherein: In the first state, the electric machine (2) is used as a starter motor for starting the fuel engine (1). In the second state, the electric machine (2) is used as a motor for providing auxiliary power to the fuel engine (1).

4. The personal watercraft of claim 1, wherein: In the third state, the electric machine (2) is used as a generator for charging the power battery (5).

5. The personal watercraft of claim 1, wherein: In the fourth state, the electric machine (2) is in zero torque state, and only the fuel engine (1) provides power to the propeller (3).

6. The personal watercraft of claim 3, wherein: The powered surfboard further comprises a power switch (10) for determining whether the electric machine (2) enters the first state, and the first input end of the controller (6) is electrically connected with the power switch (10).

7. The personal watercraft of claim 4, wherein: The powered surfboard further comprises a charging switch (20) for determining whether the electric machine (2) enters the third state, and the second input end of the controller (6) is electrically connected with the charging switch (20).

8. The personal watercraft of claim 1, wherein: The powered surfboard further comprises a handle speed adjustment control (30) for adjusting the forward speed of the powered surfboard, and the third input end of the controller (6) is electrically connected with the handle speed adjustment control (30).

9. The personal watercraft of any one of claims 1-8, wherein: The propeller (3) has a propeller.

10. The personal watercraft of any one of claims 1-8, wherein: The powered surfboard comprises a shell (100), which has an isolated cabin (7) inside, a fuel tank (8), which is in communication with the oil inlet of the fuel engine (1), the fuel engine (1) and the electric machine (2) are arranged in the isolated cabin (7), and the fuel tank (8), the power battery (5) and the controller (6) are located in the shell (100) and outside the isolated cabin (7).

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