Electrically-driven foil device and power cable unit therefor

Abstract

To provide an electrically-driven foil device and its power cable unit capable of significantly reducing a total weight and capable of improving operational agility.SOLUTION: An electrically-driven foil device and its power cable unit comprise a foil surfboard with a propulsion device, a power box to accommodate a battery and an electrical controller, a power cable connected between the power box and the propulsion device, a body accessory worn on an operator body, and a safety cord connected between the body accessory and the foil surfboard. The operator wears it on his / her body and can carry it by combining the power box and the body accessory into one. The signals of battery power and of an electric controller is transmitted to the propulsion device via the electric cable. The power cable has a spiral winding part and a straight-line part. The spiral winding part has a length defined by multiple continuous spiral rings wound in a spiral. The spiral winding part expands in length when it is applied by a force, and returns to the spiral ring in the wound state when it is not applied by a force and shortens its length.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to water activity equipment, and more particularly to an electric foil device and its power cord unit that have separate batteries and an electric controller and are portable by the operator. [Background technology]

[0002] Please refer to Patent Document 1 and Patent Document 2 (hereinafter referred to as the prior art). Both of these invention patent applications are called water electric devices or electric foil devices. Both of these invention patent applications use batteries to supply power to an electric controller (ESC) and a propulsion unit (PROPULSION UNIT). As is well known, when using an electric foil device, the operator controls the forward movement and turning of the electric foil by placing the operator's center of gravity on both feet. The battery and the electric controller (ESC) are attached inside the foil board, and the thickness of the foil board must be increased in order to accommodate the battery and the electric controller (ESC) inside it. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Chinese Patent Application No. 202011415925.4 [Patent Document 2] U.S. Patent Application Serial No. 17 / 920,662 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the above two applications significantly increase the weight of the foil board itself, and when the weights of the battery, electric controller (ESC), mast, propulsion unit (PROPULSION UNIT), front wing, rear wing, etc. are added, the weight of the entire electric foil device becomes very heavy, affecting the delicate movements when operating the electric foil device. In addition, highly precise waterproofing technology is required when installing the battery and electric controller (ESC) in the very long foil board, and this issue needs to be resolved by related businesses and improvements are awaited.

[0005] In view of the many shortcomings as described above, the inventor, based on the spirit of accumulating improvement after improvement, has continued his research with all his heart, repeatedly conducted tests on sample preparations, and made continuous improvements, and has finally created the present invention in order to achieve the following inventive objectives.

[0006] The main objective of the present invention is to provide an electric foil device and its power cord unit, which can greatly reduce the overall weight of the electric foil device and increase the agility of operation of the electric foil device, by forming an independent structure by storing the battery and the electric controller in a power box and allowing the operator to carry it on his / her body.

[0007] Another object of the present invention is to provide an electric foil device and its power cord unit that electrically connects a power cord with a spirally wound portion between a power box that is carried on the body and the propulsion device, and that has the characteristic of extending its length when subjected to force and returning to its original state when not subjected to force, thereby preventing the power cord from coming off at the connection between the power box or the propulsion device and capable of continuously transmitting power from the battery in the power box and signals from the electric controller to the propulsion device.

[0008] Another object of the present invention is to provide an electric foil device and its power cord unit, in which the power cord connected between the power box and the propulsion device has a spiral winding section, one end of the safety cord passing through the spiral winding section is restricted in its movement within the spiral winding section, and the safety cord and the power cord between the operator and the foil board are neatly connected as one unit by using a cable tie, so that the operation of the electric foil device of the present invention is not hindered by the power cord and the safety cord. [Means for solving the problem]

[0009] In order to achieve the above-mentioned object of the invention, the electric foil device of the present invention includes a foil surfboard with a propulsion device, a power box that houses a battery and an electric controller, a power cord connected between the power box and the propulsion device, a body attachment that is worn on the body of an operator, and a safety cord that is connected between the body attachment and the foil surfboard. By combining the power box and the body attachment into one, the operator can wear it on his body and carry it. The power of the battery and the signal of the electric controller are transmitted to the propulsion device through the power cord. The power cord has a spiral winding portion and a straight portion, and the spiral winding portion is composed of a plurality of continuous spiral rings wound in a spiral shape and has a length, and when the spiral winding portion receives a force, it extends its length, and when the force is not received, it returns to the spiral ring in the wound state and shortens its length. One end of the safety cord is inserted into each spiral ring of the spiral winding portion and then connected to the body attachment. The length of the power cord after the spiral winding portion is extended plus the length of the straight portion is longer than the length of the safety cord.

[0010] The electric foil device and its power cord unit of the present invention designed as above can reduce the thickness and weight of the foil board by not storing the battery and the electric controller inside the foil board of the foil surfboard, which can greatly reduce the overall weight of the foil surfboard and greatly improve the agility of operation. In addition, the spiral portion of the power cord has the property of extending when subjected to force, and the length of the spiral portion of the power cord after extending plus the length of the straight portion is equal to or greater than the length of the safety cord, which can prevent the connection between the power cord and the power box or the propulsion device from falling off. [Brief description of the drawings]

[0011] [Figure 1] FIG. 2 illustrates a power box, a power cord, and a safety strap according to an embodiment of the present invention. [Diagram 2] FIG. 2 illustrates a power box according to an embodiment of the present invention. [Diagram 3] FIG. 1 is a diagram showing a state of use according to an embodiment of the present invention. [Figure 4] FIG. 4 is a partially enlarged view of FIG. [Diagram 5] FIG. 4 is another partially enlarged view of FIG. 3. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] In order to help the judges better understand and approve the features of the present invention, we will provide an embodiment of the invention below and provide an explanation in conjunction with the drawings.

[0013] As shown in Fig. 1 to Fig. 5, the electric foil device 100 of this embodiment includes a hydrofoil boat 50, a power box 10, a power cord 20, a body attachment 40, and a safety strap 30. The foil surfboard 50 comprises a foil board 51. A mast 52 is connected to the bottom surface 511 of the foil board, and the top end of the mast 52 and the bottom surface 511 of the foil board are fixed to each other by a fixing base 521, and a waterproof seal is formed between the two. A connecting rod 53 is connected to the bottom end of the mast 52. A front wing 54 is provided at the front end of the connecting rod 53, and a rear wing 55 is provided at the rear end of the connecting rod 53. A propulsion device 60 is connected to the mast 52. A fixing part 512 is provided near the rear side of the foil board 51, and in this embodiment, the fixing part 512 is a looped cord that is fixed to the foil board 51.

[0014] The power box 10 houses a battery 11 and an electric controller 12 therein, and is electrically connected to the battery 11 and the electric controller 12. A first power connection part 13 is provided on the outer surface, and the first power connection part 13 is electrically connected to the battery 11 and the electric controller 12. When the power box 10 is closed, a sealed waterproof state is formed.

[0015] The power cord 20 has a spirally wound portion 21 and a straight portion 23. The second power connection portion 22 at the end of the power cord 20 can be connected to the first power connection portion 13 of the power box 10, and when the first power connection portion 13 and the second power connection portion 22 are connected, a sealed waterproof state is formed. The other end is electrically connected to the propulsion device 60, and the spirally wound portion 21 is composed of a plurality of continuous spiral loops 211 wound in a spiral shape and has a length. When the spirally wound portion 21 receives a force, it is pulled and its length is extended, and when it does not receive a force, its length is shortened and it returns to the spiral loop 211 in a wound state. The spirally wound portion 21 is located near the end of the second power connection portion 22, and the power cord 20 at the other end of the spirally wound portion 21 is a straight portion 23 that is extended linearly and can be bent arbitrarily. There is a slack between the straight portion 23 and the operator, so that the power cord 20 does not get in the way when the operator changes his / her posture. The straight portion 23 is in close contact with the upper surface 513 of the foil board 51 at a portion close to the rear side of the foil board 51, then bends around the bottom surface 511 of the foil board, and finally is inserted into the fixed base 521. The inside of the mast 52 and the propulsion device 60 are electrically connected, and when the power of the battery 11 and the signal of the electric controller 12 are sent to the propulsion device 60, the propulsion device 60 operates and moves the electric foil device 100 forward. The connection portion where the power cord 20 is inserted into the fixed base 521 is sealed and waterproof. A plurality of binding bases 70 are provided at intervals along the upper surface 513 of the foil board and the bottom surface 511 of the foil board, and the straight portion 23 of the power cord 20 can be fixed on the binding base 70. The straight portion 23 of the power cord 20 and the fixing part 512 (loop cord) are connected together by a cable tie 80.

[0016] The body wear 40 can be worn on the operator's body, and the body wear 40 can connect or disconnect the power box 10. In this embodiment, the body wear 40 is a belt. The body wear 40 (belt worn around the waist) and the power box 10 are connected together by a fourth connecting part 42, and in this embodiment, the fourth connecting part 42 is a Velcro (registered trademark, the same applies below). The body wear 40 further includes a third connecting part 41, and in this embodiment, the third connecting part 41 is a ring-shaped part.

[0017] The safety cord 30 has a first connecting part 31 at one end and a second connecting part 32 at the other end. In this embodiment, the first connecting part 31 is a snap hook, and the second connecting part 32 is a strong Velcro fastener. The end of the first connecting part 31 is inserted from one end of the spirally wound part 21 of the power cord 20, and then penetrates the other end of the spirally wound part 21 to the outside. The end of the first connecting part 31 is fixed on the third connecting part 41 of the body attachment 40, and the second connecting part 32 is fixed on the fixing part 512 of the foil board 51. The length of the spirally wound part 21 of the power cord 20 after it is stretched plus the length of the straight part 23 is longer than the length of the safety cord 30. The safety cord 30 and the straight part 23 of the power cord 20 are connected to each other by a plurality of cable ties 80 installed at intervals to form a single unit, so that the safety cord 30 and the straight part 23 of the power cord 20 do not get tangled or confused. Similarly, there is a slack between the safety cord 30 and the operator, so that the safety cord 30 does not get in the way even if the operator changes his / her posture.

[0018] The above is an introduction of the components and assembly method of the electric foil device 100 provided in accordance with an embodiment of the present invention, and the features of its use will be introduced below.

[0019] 1 to 5, the electric foil device 100 of this embodiment has a battery 11 and an electric controller 12 housed in the power box 10, making the power box 10 an independent structure. The operator can wear it on his / her body and carry it around, and a power cord 20 can be further connected between the power box 10 and the propulsion device 60 to send power from the battery 11 and signals from the electric controller 12 to the propulsion device 60. Thus, people can use the electric foil device 100 of this embodiment to enjoy water activities to their heart's content.

[0020] Since the battery 11 and the electric controller 12 do not need to be installed inside the foil board 51, the thickness of the foil board 51 can be made relatively thin, and the weight of the foil board 51 itself can be reduced. Compared with the prior art, the electric foil device 100 of this embodiment can reduce the weight of the foil board 51 itself while eliminating the weight of the battery 11 and the electric controller 12. Therefore, the overall weight of the electric foil device 100 of this embodiment can be significantly reduced, and agility during operation can be significantly improved.

[0021] In addition, when performing water activities, it is inevitable that the operator will fall off the foil board 51, but since the length of the safety cord 30 is shorter than the length of the spirally wound part 21 after it is stretched plus the length of the straight part 23 when the operator falls, when the safety cord 30 and the power cord 20 are pulled at the same time, the safety cord 30 is pulled preferentially, preventing the power cord 20 from being pulled and at the same time preventing the foil board 51 from moving far away from the operator. In addition, when the power cord 20 is pulled alone, the spirally wound part 21 receives the force and stretches, preventing the connection between the power cord 20 and the power box 10 or the propulsion device 60 from falling off.

[0022] One end of the safety cord 30 is passed through the spiral loop 211 of the spirally wound portion 21 of the power cord 20, and one end of the safety cord 30 is restricted in the spirally wound portion 21, and the other end of the safety cord 30 and the straight portion 23 of the power cord 20 are joined together by a plurality of binding bands 80. Thus, the straight portion 23 of the power cord 20 and the safety cord 30 do not get tangled and confused, while preventing the operator from being hindered in their actions by the power cord 20 and the safety cord 30.

[0023] The electric foil device and its power cord unit of the present invention described above are merely examples, and do not limit the scope of the present invention. Therefore, any changes made by those skilled in the art based on the present invention shall be within the scope of protection included in the present invention. [Explanation of symbols]

[0024] 100 Electric foil device 10 Power Box 11 Batteries 12 Electrical Controller 13 First power connection 14 Dust Cap 20 Power cord 21 Spiral winding section 211 Spiral ring 22 Second power connection 23 Straight section 30 Safety cord 31 First connecting part 32 Second connection part 40 Body Wear 41 Third connecting part 42 Fourth connecting part 50 Foil Surfboard 51 Foil Board 511 Foil board bottom 512 Fixing parts 513 Foil board top surface 52 Mast 521 Fixed stand 53 Connecting rod 54 Front wing 55 Rear wing 60 Propulsion device 70 Binding stand 80 Cable Ties

Claims

1. A powered foil device comprising a foil surfboard, a power box, a power cord, a body wear and a safety cord, The foil surfboard comprises a propulsion device; the power box houses a battery and an electrical controller; The power cord is connected between the power box and the propulsion device. The body attachment is attached to the body of an operator, the safety cord is connected between the body wear and the foil surfboard; By combining the power box and the body attachment into one, the operator can wear it on his body and carry it with him, the battery and the electric controller are electrically connected, and the power of the battery and the signal of the electric controller are transmitted to the propulsion device through the power cord, the power cord has a spirally wound portion and a straight portion, the spirally wound portion is composed of a plurality of continuous spiral rings wound in a spiral shape and has a length, the spirally wound portion of the power cord extends in length when it receives a force, and returns to the spiral ring in its wound state when it does not receive a force, thereby shortening its length.

2. 2. The electric foil device according to claim 1, wherein one end of the safety cord is inserted into each of the spiral loops of the spiral winding portion and then connected to the body attachment.

3. 2. The electric foil device according to claim 1, wherein the length of the power cord after the spirally wound portion is unwound plus the length of the straight portion is longer than the length of the safety cord.

4. 2. The electric foil device of claim 1, wherein a first power connection provided on the outside of the power box is electrically connected to the battery and the electric controller, and a second power connection provided at one end of the power cord is connected to the first power connection.

5. 2. The electric foil device according to claim 1, wherein the foil surfboard comprises a foil board, a mast is connected to a bottom surface of the foil board, an upper end of the mast and a bottom surface of the foil board are fixed together, a bottom end of the mast is connected to a connecting rod, a front wing is provided at a front end of the connecting rod, and a rear wing is provided at a rear end of the connecting rod, the propulsion device is connected onto the mast, a plurality of spaced apart binding stands are provided on an upper surface of the foil board and a bottom surface of the foil board, the straight portion of the power cord is fixed onto the binding stands, and the safety cord and the straight portion of the power cord are connected together by a plurality of binding bands.

6. 2. The electric foil device of claim 1, wherein one end of the safety strap has a first connecting part and the other end has a second connecting part, the body attachment has a fourth connecting part and a third connecting part, the first connecting part of the safety strap is connected onto the third connecting part of the body attachment, the second connecting part of the safety strap is connected onto the foil surfboard, and the body attachment and the power box are connected together by the fourth connecting part.

7. A power cord unit for an electric foil device, comprising a power cord and a safety cord, the power cord has a helical portion and a straight portion, a second power connection portion at one end of the power cord is connected to a power box, and the other end of the power cord is electrically connected to the propulsion device, the helical portion is formed of a plurality of continuous helical loops wound in a helical shape and has a length, and when the helical portion is subjected to a force, the length is extended and pulled, and when the helical portion is not subjected to a force, the length is shortened by returning to the helical loop in a wound state; The safety cord has a first connecting part at one end and a second connecting part at the other end, the end of the first connecting part is inserted into one end of the spirally wound portion of the power cord, passes through the spirally wound portion and comes out from the other end, and is then connected and fixed onto an article attached to the body, and the second connecting part is connected and fixed onto a foil board.

8. 8. The power cord unit of claim 7, wherein the length of the spirally wound portion of the power cord plus the length of the straight portion is longer than the length of the safety cord.

9. 8. The power cord unit of claim 7, wherein the safety cord and the straight portion of the power cord are connected together by a plurality of cable ties.

10. 8. The power cord unit of the electric foil device according to claim 7, wherein the first connecting part of the safety cord is a snap hook, and the second connecting part of the safety cord is a strong Velcro fastener.

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