Propulsion system and electric kayak

Abstract

The utility model provides a propulsion system and an electric kayak. The propelling system comprises a shell, a main shaft, a propeller, an electric driving device and an electric control device. The shell is provided with a cavity. The main shaft is rotatably mounted on the shell and extends from the cavity of the shell to the outside of the shell. The propeller is arranged outside the shell and connected to one end of the main shaft. The electric driving device is connected to the other end of the spindle and drives the spindle to drive the propeller to rotate. The electric control device is electrically connected to the electric driving device and controls the propelling system.

Description

Technical Field

[0001] The present application relates to the field of outdoor sports, and in particular to a propulsion system and an electric kayak. Background Art

[0002] Currently, kayak propulsion systems primarily rely on pedaling to drive the main shaft, which in turn rotates the propeller, propelling the kayak forward. This method relies primarily on manual power, resulting in unstable driving force and high labor consumption. Furthermore, pedaling propulsion systems are cumbersome to adjust when switching between forward and reverse motion, and the switching mechanism is complex, hindering widespread use of kayaks. Utility Model Content

[0003] The main purpose of the present application is to overcome at least one of the defects of the above-mentioned prior art and to provide a propulsion system and a kayak that are non-human driven, simple in structure, and easy to operate.

[0004] To achieve the above objectives, this application adopts the following technical solutions:

[0005] According to one aspect of the present application, a propulsion system for a kayak is provided, comprising a housing, a main shaft, a propeller, an electric drive device, and an electric control device. The housing has a chamber. The main shaft is rotatably mounted on the housing and extends from the chamber of the housing to the exterior of the housing. The propeller is disposed outside the housing and connected to one end of the main shaft. The electric drive device is connected to the other end of the main shaft, driving the main shaft to rotate the propeller. The electric control device is electrically connected to the electric drive device and controls the propulsion system.

[0006] According to one embodiment of the present application, the electric drive device includes a motor and an internal battery. The motor and the internal battery are arranged in the cavity of the shell, and the internal battery provides power for the motor.

[0007] According to one embodiment of the present application, the electric drive device also includes an external power supply and a relay. The external power supply is arranged outside the shell. The relay electrically connects the motor, the internal battery and the external power supply. The internal battery and the external power supply respectively provide power to the motor through switching of the relay.

[0008] According to one embodiment of the present application, the electronic control device includes a housing, an electronic safety device, a drive controller, and a propeller controller. The housing is mounted within the housing, and the electronic safety device, drive controller, and propeller controller are mounted within the housing. The propeller controller controls the rotational direction of the propeller. The electronic safety device is used to identify the safety status of the kayak. The drive controller detects whether the electronic safety device is in an abnormal state. If an abnormality occurs, the drive controller controls the electric drive device to stop driving the main shaft, thereby stopping the propeller from rotating.

[0009] According to one embodiment of the present application, the electronic safety device is a magnetic safety device, comprising a magnet and a magnetic panel, wherein the magnetic panel is fixed to the surface of the box body, and the magnet is adsorbed on the magnetic panel. When the magnet is detached from the magnetic panel, the electronic safety device is in an abnormal state.

[0010] According to one embodiment of the present application, a display panel and a switch are provided on the box body, the display panel is electrically connected to the switch, the display panel is made of waterproof material, and the switch is used to start or stop the electric drive device.

[0011] According to one embodiment of the present application, the electronic control device further includes a speed regulating potentiometer, which is electrically connected to the electric drive device, and the speed regulating potentiometer adjusts the travel speed of the kayak by adjusting the electric drive device.

[0012] According to one embodiment of the present application, the propulsion system further includes a locking device, which locks the propulsion system to the kayak.

[0013] According to one embodiment of the present application, the locking device includes a fixing frame and a fixing seat. The fixing frame is fixedly connected to the kayak, and the fixing frame includes a first side, a second side, a third side, and a fourth side connected end to end, the first side, the second side, the third side, and the fourth side forming a hollow opening, and the first side and the third side are provided with protrusions. The fixing seat is fixedly connected to the housing of the propulsion system, and the fixing seat has a slot. The fixing seat passes through the hollow opening, and the protrusion is engaged with the slot to secure the fixing seat to the fixing frame.

[0014] According to one embodiment of the present application, the fixed frame is a circular frame or a polygonal frame.

[0015] According to one embodiment of the present application, at least one stopping structure is provided on the side of the shell, and the locking device has at least one elastic sheet, and the stopping structure stops the elastic sheet to prevent the shell from being separated from the locking device.

[0016] According to another aspect of the present application, the present application provides a kayak, comprising a boat body and a propulsion system, wherein the propulsion system is fixed to the boat body and propels the kayak, wherein the propulsion system adopts the above propulsion system.

[0017] From the above technical solutions, it can be seen that the advantages and positive effects of the propulsion system proposed in this application are:

[0018] The propulsion system proposed in this application adopts an electric drive device to drive the propeller, which is convenient and labor-saving, and the driving force is stable, reliable and sustainable; the propulsion system is controlled by an electronic control device, and the forward and reverse movement of the propulsion system can be controlled by the electronic control device. There is no need to adopt a complex adjustment device, and the operation is simple. The user can flexibly switch the forward and reverse of the kayak, which is conducive to the widespread application of kayaks.

[0019] Furthermore, the propulsion system of the present application uses an internal battery and an external power supply to power the propeller, and switches through a relay, which is more conducive to expanding the application scenarios of kayaking and meeting the different needs of different users.

[0020] Furthermore, the propulsion system of the present application is equipped with a magnetic electronic safety device consisting of a magnet and a magnetic panel. When the magnet detaches from the magnetic panel, the drive controller detects that the electronic safety device is in an abnormal state and controls the electric drive device to stop driving the main shaft, causing the propeller to stop rotating. This prevents the kayak from continuing to move after the user accidentally falls into the water, improving the user experience and sense of security.

[0021] Furthermore, the propulsion system of the present application is connected to the kayak using a locking device, which is easy to disassemble and firmly locked. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The various objects, features, and advantages of the present application will become more apparent by considering the following detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings. The accompanying drawings are merely illustrative illustrations of the present application and are not necessarily drawn to scale. In the drawings, the same reference numerals always indicate the same or similar parts.

[0023] Figure 1 It is a structural diagram of the propulsion system of this application.

[0024] Figure 2 yes Figure 1 The main view (where the part above the main axis is cut along the center line).

[0025] Figure 3 yes Figure 1 Schematic diagram of the structure with the upper shell removed.

[0026] Figure 4It is a structural schematic diagram of the electronic control device of the propulsion system of the present application.

[0027] Figure 5 yes Figure 4 A schematic diagram showing the internal structure of the box with part of the box removed.

[0028] Figure 6 yes Figure 1 Schematic diagram of the structure of the propulsion system after installing a locking device.

[0029] Figure 7 It is a structural schematic diagram of the locking device of the propulsion system of the present application.

[0030] Figure 8 It is a structural diagram of a fixed frame.

[0031] Figure 9 It is a structural diagram of the fixed seat.

[0032] Figure 10 It is a control schematic diagram of the electronic control device of this application.

[0033] The following are the descriptions of the reference numerals:

[0034] 1. Propulsion system;

[0035] 10. Housing;

[0036] 11. Spindle;

[0037] 12. Propeller;

[0038] 13. Electric drive device;

[0039] 14. Electronic control device;

[0040] 15. Locking device;

[0041] 101. Upper shell;

[0042] 102. Lower housing;

[0043] 103. Chamber;

[0044] 104. Stop structure;

[0045] 131. Motor;

[0046] 133. Relay;

[0047] 1321. Internal battery;

[0048] 1322. External power supply;

[0049] 1323. Terminal blocks;

[0050] 1324. Charging head;

[0051] 141. Box body;

[0052] 142. Electronic safety devices;

[0053] 143. Drive controller;

[0054] 144. Propeller controller;

[0055] 145. Display panel;

[0056] 146. Switch;

[0057] 147. Speed potentiometer;

[0058] 1421. Magnet;

[0059] 1422. Magnetic panel;

[0060] 150. Fixed frame;

[0061] 151. Elastic sheet;

[0062] 152. Fixed seat;

[0063] 1501. First side;

[0064] 1502. Second side;

[0065] 1503. The third side;

[0066] 1504. The fourth side;

[0067] 1505. Hollow opening;

[0068] 1506. bulge;

[0069] 1521. Card slot;

[0070] 1522. base body;

[0071] 1523. Seat edge;

[0072] 1524. Groove. DETAILED DESCRIPTION

[0073] Typical embodiments that embody the features and advantages of the present application will be described in detail in the following description. It should be understood that the present application can have various variations in different embodiments without departing from the scope of the present application, and the description and drawings therein are essentially for illustrative purposes and are not intended to limit the present application.

[0074] In the following description of different exemplary embodiments of the present application, reference is made to the accompanying drawings, which form a part of the present application and in which are shown by way of example different exemplary structures, systems and steps that can implement various aspects of the present application. It should be understood that other specific schemes of components, structures, exemplary devices, systems and steps can be used, and structural and functional modifications can be made without departing from the scope of the present application. When introducing the elements / components / etc. described and / or illustrated herein, the terms "comprising", "including" and "having" are used to express an open-ended inclusive meaning and mean that in addition to the listed elements / components / etc., additional elements / components / etc. may be present.

[0075] Relative terms such as "lower" or "bottom" and "upper" or "top" may be used herein to describe the relationship of one element to another element, as shown in the figures. It should be understood that relative terms are intended to include different orientations of the device in addition to the orientation shown in the figures. For example, if the device in a figure is turned over, the element described as being "lower" or "bottom" of other elements will be oriented "upper" or "top" of the other elements. Thus, the exemplary term "lower" can include both "lower" and "top" orientations, and the term "bottom" can include both "bottom" and "top" orientations, depending on the particular orientation of the figure. Similarly, if the device in a figure is turned over, the element described as being "lower" or "bottom" of other elements will be oriented as being "upper" or "top" of the other elements. Thus, the exemplary terms "bottom" or "below" can include both "upper" and "lower" orientations.

[0076] like Figures 1 to 3 As shown, the propulsion system 1 for kayaking of the present application includes a housing 10, a main shaft 11, a propeller 12, an electric drive device 13 and an electric control device 14. The housing 10 has a chamber 103. The main shaft 11 is rotatably disposed in the housing 10 and extends from the chamber 103 of the housing 10 to the outside of the housing 10. The propeller 12 is disposed outside the housing 10 and connected to one end of the main shaft 11. The electric drive device 13 is connected to the other end of the main shaft 11, driving the main shaft 11 to rotate the propeller 12. The electric control device 14 is electrically connected to the electric drive device 13 and controls the propulsion system 1.

[0077] The propulsion system 1 of the present application adopts an electric drive device 13 to drive the propeller 12, which is convenient and labor-saving, and the driving force is stable, reliable and sustainable; the propulsion system 1 is controlled by an electronic control device 14, which can control the forward and backward movement of the propulsion system 1 through the electronic control device, does not require a complicated adjustment structure, is easy to operate, and the user can flexibly switch the forward and backward movement of the kayak.

[0078] The propeller of the present application can be a conventional propeller in the prior art. The propeller includes blades, and the main shaft is engaged with bevel gears to convert the rotation of the main shaft into the rotation of the propeller blades.

[0079] like Figures 1 to 3 As shown, in this embodiment, the housing 10 includes an upper housing 101 and a lower housing 102. Of course, the housing 10 can also be assembled in other ways, such as a left and right housing assembly, or a plurality of housing sections assembled into a whole housing.

[0080] like Figures 1 to 3 As shown, in this embodiment, the electric drive device 13 includes a motor 131 and an internal battery 1321. The motor 131 is disposed in the chamber 103 of the housing 10 and electrically connects to the internal battery 1321, which provides power to the motor 131. The use of the internal battery 1321 and the motor 131 to power the propeller 12 makes the propulsion system 1 compact, easy to assemble and disassemble, and portable.

[0081] In some other embodiments, such as Figure 2 As shown, the electric drive device 13 also includes an external power source 1322 and a relay 133. The external power source 1322 is located outside the housing 10. The relay 133 electrically connects the motor 131, the internal battery 1321, and the external power source 1322. The internal battery 1321 and the external power source 1322 respectively provide power to the motor 131 through switching by the relay 133. The placement of the external power source 1322 outside the housing 10 improves the endurance of the propulsion system 1, increases the kayak's range, enhances the user experience, and can meet the user's needs in various situations. The external power source can be a backup power source or municipal electricity.

[0082] like Figure 3 As shown, the propulsion system 1 further includes a connection terminal 1323 and a charging head 1324. The charging head 1324 is used to charge the internal battery 1321. The connection terminal 1323 can be connected to an external power source 1322 or other external devices that require electrical connection.

[0083] In this embodiment, if Figure 4 and Figure 5 As shown, the electronic control device 14 includes a housing 141, an electronic safety device 142, a drive controller 143, and a propeller controller 144. The electronic safety device 142, drive controller 143, and propeller controller 144 are housed in the housing 141. The propeller controller 142 controls the rotation direction of the propeller 12, while the drive controller 143 detects whether the electronic safety device 142 is operating abnormally. If an abnormality occurs, the drive controller 143 controls the electric drive 13 to stop driving the main shaft 11, thereby stopping the propeller 12 from rotating. The provision of the electronic safety device 142 can mitigate unexpected situations, enhance user safety, and improve the safety performance of the propulsion system 1. The electronic safety device 142, drive controller 143, and propeller controller 144 are housed in the housing 141 of the electronic control device 14, resulting in a compact structure and simple interconnection circuits.

[0084] like Figure 4 and Figure 5 As shown, in this embodiment, the electronic safety device 142 is a magnetic safety device, including a magnet 1421 and a magnetic panel 1422. The magnetic panel 1422 is fixed to the surface of the box body 141, and the magnet 1421 is attracted to the magnetic panel 1422. The electronic safety device 142 uses a magnet 1421 and a magnetic panel 1422. The magnet 1421 is attracted to the magnetic panel 1422 and can be firmly attracted to the magnetic panel 1422. If the user accidentally falls into the water, the magnet 1421 can be separated from the magnetic panel 1422, and the electronic safety device 142 is in an abnormal state. The magnetic safety device has a simple structure and good safety effect.

[0085] like Figure 4 and Figure 5 As shown, in this embodiment, when magnet 1421 detaches from magnetic panel 1422, electronic safety device 142 sends a signal to drive controller 143, which in turn controls electric drive device 13 to stop driving main shaft 11, thereby stopping propeller 12 from rotating. If a user accidentally falls into the water, magnet 1421 detaches from magnetic panel 1422, generating a signal. Electronic safety device 142 sends this signal to drive controller 143, which, upon receiving the signal, controls electric drive device 13 to stop driving propeller 12, thereby preventing the kayak from moving forward or backward, thus protecting the user's life.

[0086] like Figure 4 and Figure 5 As shown, in this embodiment, the housing 141 is provided with a display panel 145 and a switch 146. The switch 146 is electrically connected to the display panel 145. The display panel 145 is made of a waterproof material. The switch 146 is used to start or stop the electric drive device 13. The display panel 145 can display information such as the battery level and the kayak's speed, allowing the user to easily understand the kayak's various physical status information. The switch 146 is conveniently located and can be a push button switch, a toggle switch, or a rotary switch.

[0087] In this embodiment, the electronic control device 14 further includes a speed adjustment potentiometer 147, which is electrically connected to the electric drive device 13. The speed adjustment potentiometer 147 adjusts the kayak's travel speed by adjusting the electric drive device 13. The setting of the speed adjustment potentiometer 147 can adapt the kayak's travel speed to different users in different situations, thereby expanding the application range of the kayak and improving the user experience.

[0088] In this embodiment, if Figures 6 to 9As shown, the propulsion system 1 also includes a locking device 15, which locks the propulsion system 1 to the kayak. Using the locking device 15 to lock the propulsion system 1 to the bottom of the kayak allows one propulsion system 1 to be used in multiple kayaks. The propulsion system 1 is also detachable, making it easy to repair and replace.

[0089] like Figures 6 to 9 As shown, in this embodiment, at least one stop structure 104 is provided on the side of the housing 10, and the locking device 15 has at least one elastic piece 151. The stop structure 104 stops the elastic piece 151 to prevent the housing 10 from separating from the locking device 15. The provision of the stop structure 104 and the elastic piece 151 can prevent relative displacement between the propulsion system 1 and the locking device 15, preventing the propulsion system 1 from separating from the locking device 15 due to water impact.

[0090] like Figures 6 to 9 As shown, in this embodiment, the locking device 15 includes a fixing frame 150 and a fixing seat 152. The fixing frame 150 is fixedly connected to the kayak and includes a first side 1501, a second side 1502, a third side 1503, and a fourth side 1504 connected end to end. The first side 1501, the second side 1502, the third side 1503, and the fourth side 1504 form a hollow opening 1505. The first side 1501 and the third side 1503 are provided with protrusions 1506. The fixing seat 152 is fixedly connected to the housing 10 of the propulsion system 1. The fixing seat 152 has a locking slot 1521. The fixing seat 152 passes through the hollow opening 1505. The protrusion 1506 is engaged with the locking slot 1521, thereby securing the fixing seat 152 to the fixing frame 150, thereby securing the propulsion system 1 to the kayak. The propulsion system 1 and the kayak are secured using a fixing frame 150 and a fixing seat 152, resulting in a simple structure. The fixing frame 150 and the fixing seat 152 are secured together using a locking mechanism between the protrusion 1506 and the locking slot 1521, providing a secure and reliable connection and easy assembly and disassembly. In other embodiments, the fixing frame can also be circular or polygonal to accommodate different kayaks and users.

[0091] like Figures 6 to 9 As shown, in this embodiment, the fixed seat 152 includes a seat body 1522 and a seat edge 1523. The seat body 1522 is in the shape of a box with an open top. A through hole (not shown in the figure) is provided at the bottom of the box for the main shaft 11 to pass through. The seat edge 1523 is connected to the top opening of the seat body 1522 and extends toward the outside of the seat body 1522. A card slot 1521 is provided on the seat edge 1523, and a groove 1524 is provided on the outer wall of the seat body 1522. The groove 1524 is connected to the card slot 1521. The groove 1524 allows the protrusion 1506 of the fixed seat 152 to slide along the groove 1524 into the card slot 1521 to realize the connection and fixation of the fixed seat 152 and the fixed frame 150.

[0092] Figure 10 A control schematic diagram of the electronic control device 14 of the propulsion system 1 of the present application is shown, wherein a relay 133 is connected to an internal battery 1321 and an external power source 1322, and a switch 146 is connected to the relay 133. The switch 146 can control the internal battery 1321 or the external power source 1322 to supply power to the drive controller 143, the display panel 145, the electronic safety device 142, the propeller controller 144, the speed potentiometer 147, and the motor 131. Signals can be exchanged between the display panel 145, the electronic safety device 142, the propeller controller 144, the speed potentiometer 147, the motor 131, and the drive controller 143.

[0093] The kayak of the present application includes a boat body and a propulsion system. The propulsion system is fixed to the boat body and propels the kayak. The propulsion system adopts the above-mentioned propulsion system 1.

[0094] In this exemplary embodiment, the propulsion system 1 proposed in this application is described using the kayaking field as an example. Those skilled in the art will readily appreciate that, in order to apply the relevant designs of this application to other fields, various modifications, additions, substitutions, deletions, or other changes may be made to the specific embodiments described below, and such modifications remain within the scope of the principles of the propulsion system 1 proposed in this application.

[0095] It should be noted that the propulsion systems 1 shown in the drawings and described in this specification are only a few examples of the many propulsion systems 1 that can employ the principles of the present application. It should be clearly understood that the principles of the present application are by no means limited to any component of any detail of the propulsion system 1 shown in the drawings or described in this specification.

[0096] The above is a detailed description of several exemplary embodiments of the propulsion system 1 and the kayak proposed in this application. The following is an exemplary description of the installation and use process of the propulsion system 1 and the kayak proposed in this application.

[0097] Combined with attachment Figures 1 to 10 The installation and use process of the propulsion system 1 and kayak proposed in this application is as follows:

[0098] Fix the fixing frame 150 of the locking device 15 to the bottom of the kayak, and fix the fixing seat 152 of the locking device 15 to the propulsion system 1; put the propulsion system 1 into the bottom of the kayak along the hollow opening 1505 of the fixing frame 150, at this time, the protrusion 1506 of the fixing frame 150 can slide along the groove 1524 of the fixing seat 152 to the end of the groove 1524, and the seat body 1522 of the fixing seat 152 and the propeller 12 are both located under the bottom of the kayak.

[0099] Pushing the propulsion system 1 causes the protrusion 1506 of the fixing frame 150 to slide from the end of the groove 1524 into the locking slot 1521, and the propulsion system 1 is installed and fixed to the kayak. The stop structure 104 provided on the side of the housing 10 stops the elastic piece 151 of the locking device 15 in the direction opposite to the installation direction, preventing the housing 10 from being separated from the locking device 15.

[0100] When switch 146 is turned on, internal battery 1321 or external power supply 1322 supplies power to motor 131, which in turn drives spindle 11 and propeller 12 to rotate, causing the kayak to move forward or backward. During this process, magnet 1421 of electronic safety device 142 (magnetic safety device) remains attached to magnetic panel 1422.

[0101] When an accidental fall into the water occurs, the magnet 1421 of the electronic safety device 142 (magnetic safety device) detaches from the magnetic panel 1422, and the drive controller 143 detects that the electronic safety device 142 is in an abnormal state. The drive controller 143 controls the electric drive device 13 to stop driving the propeller 12 to rotate, and the kayak stops moving forward or backward.

[0102] Through the above-mentioned use process of the propulsion system 1 and the kayak of the present application, it can be concluded that the propulsion system 1 of the present application adopts an electric drive device 13 to drive the propeller 12, which is convenient and labor-saving, and the driving force is stable and reliable with good sustainability; the propulsion system 1 is controlled by an electronic control device 14, and the forward and backward movement of the propulsion system 1 can be controlled by the electronic control device 14, without the need for a complex adjustment structure, and the operation is simple, and the user can flexibly switch the forward and backward movement of the kayak.

[0103] In summary, the propulsion system proposed in this application includes a housing 10, a main shaft 11, a propeller 12, an electric drive device 13, and an electronic control device 14. The housing 10 has a chamber 103. The main shaft 11 extends from the chamber 103 of the housing 10 to the outside of the housing 10. The propeller 12 is disposed outside the housing 10 and connected to one end of the main shaft 11. The electric drive device 13 is connected to the other end of the main shaft 11, driving the main shaft 11 to rotate the propeller 12. The electronic control device 14 is electrically connected to the electric drive device 13 and controls the propulsion system 1.

[0104] The propulsion system 1 of the present application uses an electric drive device 13 to drive the propeller 12, which is convenient and labor-saving, and the driving force is stable, reliable, and sustainable. A magnetic electronic safety device 142 composed of a magnet 1421 and a magnetic panel 1422 is provided. When the magnet 1421 is separated from the magnetic panel 1422, the drive controller 143 detects that the electronic safety device 142 is in an abnormal state. The drive controller 143 controls the electric drive device 13 to stop driving the main shaft 11, causing the propeller 12 to stop rotating. This prevents the kayak from continuing to move after the user accidentally falls into the water, thereby improving the user experience and sense of security.

[0105] The kayak proposed in this application includes a boat body and a propulsion system. The propulsion system is fixed to the boat body and propels the kayak. The propulsion system adopts the above-mentioned propulsion system 1.

[0106] The above describes and / or illustrates in detail exemplary embodiments of the propulsion system and electric kayak proposed in the present application. However, the embodiments of the present application are not limited to the specific embodiments described herein. On the contrary, the components and / or steps of each embodiment can be used independently and staggered with other components and / or steps described herein. Each component and / or each step of an embodiment can also be used in combination with other components and / or steps of other embodiments. When introducing the elements / components / etc. described and / or illustrated herein, the terms "one", "an" and "above" are used to indicate the presence of one or more elements / components / etc.

[0107] The embodiments of the present application are not limited to the specific embodiments described herein. On the contrary, the components of each embodiment can be used independently and staggered with the other components described herein. Each component of an embodiment can also be used in combination with other components of other embodiments. In the description of this specification, the description of the terms "one embodiment", "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the application embodiment. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0108] In the embodiments, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the embodiments based on the specific circumstances.

[0109] While the propulsion system and electric kayak have been described in terms of various specific embodiments, those skilled in the art will recognize that the invention can be practiced with modification within the spirit and scope of the claims.

Claims

1. A propulsion system for a kayak, characterized in that: include: a housing having a chamber; a main shaft rotatably mounted on the housing and extending from the chamber of the housing to the outside of the housing; a propeller, disposed outside the housing and connected to one end of the main shaft; an electric drive device connected to the other end of the main shaft, driving the main shaft to rotate the propeller; An electric control device is electrically connected to the electric drive device and controls the propulsion system.

2. The propulsion system according to claim 1, wherein: The electric drive device includes a motor and an internal battery. The motor and the internal battery are arranged in the cavity of the shell, and the internal battery provides power for the motor.

3. The propulsion system according to claim 2, wherein: The electric drive device also includes an external power supply and a relay. The external power supply is arranged outside the shell. The relay electrically connects the motor, the internal battery and the external power supply. The internal battery and the external power supply respectively provide power to the motor through switching of the relay.

4. The propulsion system according to claim 1, wherein: The electronic control device includes: A box body, arranged on the shell; an electronic safety device, disposed in the box body, for identifying a safety status of the kayak; a drive controller, disposed in the housing, for detecting whether the state of the electronic safety device is abnormal. When abnormal, the drive controller controls the electric drive device to stop driving the main shaft, so that the propeller stops rotating; The propeller controller is arranged on the box body and controls the rotation direction of the propeller.

5. The propulsion system according to claim 4, wherein: The electronic safety device is a magnetic safety device, including a magnet and a magnetic panel. The magnetic panel is fixed to the surface of the box body, and the magnet is adsorbed on the magnetic panel. When the magnet is separated from the magnetic panel, the electronic safety device is in an abnormal state.

6. The propulsion system according to claim 4, wherein: The box body is provided with a display panel and a switch, the display panel is electrically connected to the switch, the display panel is made of waterproof material, and the switch is used to start or stop the electric drive device.

7. The propulsion system according to any one of claims 1 to 6, characterized in that: The electronic control device further includes a speed regulating potentiometer, which is electrically connected to the electric drive device. The speed regulating potentiometer adjusts the travel speed of the kayak by adjusting the electric drive device.

8. The propulsion system according to any one of claims 1 to 6, characterized in that: The propulsion system further includes a locking device that locks the propulsion system to the kayak.

9. The propulsion system according to claim 8, wherein: The locking device comprises: a fixing frame, the fixing frame being fixedly connected to the kayak, the fixing frame comprising a first side, a second side, a third side, and a fourth side connected end to end in sequence, the first side, the second side, the third side, and the fourth side forming a hollow opening, and the first side and the third side being provided with protrusions; A fixing seat is fixedly connected to the shell of the propulsion system, the fixing seat has a slot, the fixing seat passes through the hollow opening, the protrusion is snapped into the slot, and the fixing seat is detachably fixed to the fixing frame.

10. The propulsion system according to claim 9, wherein: The fixed frame is a circular frame or a polygonal frame.

11. The propulsion system according to claim 9, wherein: At least one stopping structure is provided on the side of the shell, and the locking device has at least one elastic piece. The stopping structure stops the elastic piece to prevent the shell from being separated from the locking device.

12. An electric kayak comprising a kayak body and a propulsion system, wherein the propulsion system is detachably mounted on the kayak body, characterized in that: The propulsion system comprises the propulsion system according to any one of claims 1 to 11.

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