Battery pack for an electric surfboard and electric surfboard

By setting a first switch and a second switch on the power supply circuit of the battery pack, the problem of power supply safety defects in electric surfboard battery packs is solved, and electric shock accidents are avoided after disassembly, thus improving electrical safety.

CN224355839UActive Publication Date: 2026-06-12SHENZHEN FREEMAN IT LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN FREEMAN IT LTD
Filing Date
2025-06-09
Publication Date
2026-06-12

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Abstract

This utility model discloses a battery pack for an electric surfboard, comprising: a housing with a power supply port; a battery cell unit disposed within the housing, the battery cell unit being electrically connected to the power supply port via a power supply circuit; the power supply circuit having a first switch and a second switch, wherein when the first and second switches are closed, the power supply circuit is activated, and the battery cell unit supplies power to the power supply port; wherein the first switch is closed when the housing contacts a human body; and the second switch is closed when the housing contacts the body of the electric surfboard. Accordingly, this utility model also discloses an electric surfboard including the aforementioned battery pack. Using the battery pack of this utility model can greatly improve user electrical safety, prevent electric shock accidents caused by accidental contact with the power supply port, and avoid safety incidents, thus possessing good prospects for promotion and application value.
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Description

Technical Field

[0001] This utility model relates to the field of surfboard technology, and in particular to a battery pack for an electric surfboard and an electric surfboard. Background Technology

[0002] As we all know, surfing is a popular sport due to its thrilling nature and effective exercise. However, current traditional surfboards require the propulsion of waves to function, rendering them ineffective in calm or low-lying conditions. Therefore, to enable surfing even in calm or low-lying waters, some manufacturers have begun developing and designing electric surfboards.

[0003] Research has found that current electric surfboards generally consist of a board body, a jet pump, and a battery pack. In practice, the battery pack is usually detachably mounted on the upper surface of the board body for easy replacement by the user. However, when the existing battery pack is removed and stored on the beach, there is a frequent risk that unsuspecting people may touch the power supply port while playing. If the battery pack's power supply safety measures are flawed, it can easily be misinterpreted as a user detection, leading to a power supply to the surfboard and resulting in an electric shock accident. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a battery pack for electric surfboards, so as to solve the problem that existing battery packs for electric surfboards are prone to electric shock accidents due to defects in power supply safety measures.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a battery pack for an electric surfboard, comprising:

[0006] The housing is also provided with a power supply port.

[0007] A battery cell unit is disposed in the housing and is electrically connected to the power supply port through a power supply circuit. The power supply circuit is provided with a first switch and a second switch, so that when the first switch and the second switch are closed, the power supply circuit is turned on and the battery cell unit supplies power to the power supply port.

[0008] The first switch is used to close when the housing comes into contact with a human body; the second switch is used to close when the housing comes into contact with the board of the electric surfboard.

[0009] Furthermore, in the battery pack described in this utility model, the first switch is disposed near the upper surface of the housing.

[0010] Furthermore, in the battery pack described in this utility model, the first switch is a pressure-sensitive switch or a capacitive touch switch.

[0011] Furthermore, in the battery pack described in this utility model, the second switch is disposed near the lower surface of the housing.

[0012] Furthermore, in the battery pack described in this utility model, the second switch is a mechanical contact switch.

[0013] Furthermore, the battery pack described in this utility model also includes a foot pedal, which is detachably disposed on the upper surface of the housing.

[0014] Furthermore, the battery pack described in this utility model also includes a fixed handle, which is disposed on the upper surface of the housing.

[0015] Furthermore, the battery pack described in this utility model also includes a telescopic handle, which includes a telescopic rod and a gripping member. The telescopic rod includes a first rod body and a second rod body that are slidably connected. The first rod body is connected to the housing, one end of the second rod body is sleeved inside the first rod body, and the other end of the second rod body is connected to the gripping member. The second rod body slides relative to the first rod body to drive the gripping member closer to or away from the upper surface of the housing.

[0016] Furthermore, in the battery pack described in this utility model, the telescopic handle includes an extended state and a retracted state; wherein, in the extended state, the gripping member is positioned higher than the upper surface of the housing in the vertical height direction; and in the retracted state, the gripping member is positioned equal to or lower than the upper surface of the housing in the vertical height direction.

[0017] Accordingly, this utility model also discloses an electric surfboard, wherein a battery compartment is recessed and formed on the upper surface of the board body, and the battery compartment is used to install the battery pack of this utility model.

[0018] The beneficial effects of this utility model are as follows: This utility model designs a brand-new battery pack for electric surfboards. The battery pack has adjusted its power supply circuit by additionally setting a first switch and a second switch on the power supply circuit. The first switch is controlled to close when the shell comes into contact with the human body, and the second switch is controlled to close when the shell comes into contact with the electric surfboard. The power supply circuit is only turned on when the first switch and the second switch are closed simultaneously. The battery cell unit supplies power to the power supply port. This can avoid the problem of electric shock caused by accidental contact by the user after the battery pack is removed from the surfboard, thereby greatly improving electrical safety. It has good prospects for promotion and application value. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the electric surfboard according to one embodiment of the present invention with a battery pack installed.

[0020] Figure 2 This is a schematic diagram of the battery pack of the present invention from one perspective in one embodiment;

[0021] Figure 3 This is a schematic diagram of the battery pack described in this utility model from another perspective in one embodiment.

[0022] Figure 4 This is a circuit connection diagram of the battery pack described in one embodiment of the present invention.

[0023] Label Explanation:

[0024] 1. Battery pack; 11. Housing;

[0025] 2. Power supply port;

[0026] 3. Threaded hole;

[0027] 4. Fixed handle;

[0028] 5. Electric surfboard. Detailed Implementation

[0029] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0030] like Figures 1-4 As shown, in this embodiment, the present invention newly designs a battery pack 1 for an electric surfboard 5. The upper surface of the electric surfboard 5 has a recessed battery compartment for mounting and fixing the battery pack 1. Specifically, the battery pack 1 is a top-mounted battery pack, which facilitates the subsequent disassembly, assembly, and use of the battery pack 1. In this implementation, the upper surface of the battery pack 1 can specifically serve as a standing support surface for the user while surfing, so that the user can stand on the electric surfboard 5 to surf during actual use.

[0031] Accordingly, see further Figure 2 , Figure 3 and Figure 4To improve the safety of the battery pack 1, this embodiment features a specific optimized design for its structure. The battery pack 1 includes a housing 11, battery cell units disposed within the housing 11, and a power supply circuit. The housing 11 has a power supply port 2, allowing the battery cell units disposed within the housing 11 to establish an electrical connection with the power supply port 2 via the power supply circuit, thereby supplying power to the power supply port 2 using the battery cell units.

[0032] It should be noted that, in this embodiment, a first switch and a second switch are additionally provided on the power supply circuit. The first switch is used to close when the housing 11 of the battery pack 1 comes into contact with a human body, and the second switch is used to close when the housing 11 of the battery pack 1 comes into contact with the board of the electric surfboard 5. When both the first switch and the second switch are closed, the power supply circuit is controlled to conduct, and the battery cell unit supplies power to the power supply port 2 opened on the housing 11.

[0033] To avoid accidental contact with the power supply port 2 on the housing 11, see [link / reference]. Figure 3 As shown, in this embodiment, the power supply port 2 can be specifically controlled to be located on the lower surface of the housing 11 of the battery pack 1.

[0034] like Figure 4 As shown, Figure 4 The electrical connection diagram of the power supply circuit described above is shown in detail. This power supply circuit will only be operational when both the first and second switches are closed, allowing power to be supplied to the power supply port 2 via the battery cells in the battery pack 1. Based on this configuration, power is supplied to the power supply port 2 only when the battery pack 1 is mounted on the electric surfboard 5 and the user steps on or touches the battery pack 1. Once the battery pack 1 is removed from the electric surfboard 5, power will not be supplied to the power supply port 2 during transport or subsequent accidental contact, thus significantly improving the electrical safety of the battery pack 1 and preventing electric shock accidents.

[0035] It should be noted that, in order to achieve better performance and improve user experience, and to avoid situations where the first or second switch fails to close when the housing 11 contacts a human body or when the housing 11 contacts the electric surfboard 5 due to insufficient sensitivity, in actual installation, the first switch can be positioned closer to the upper surface of the housing 11 of the battery pack 1 to better determine whether a human body is in contact with the housing 11; the second switch can be positioned closer to the lower surface of the housing 11 to better determine whether the housing 11 of the battery pack 1 is in contact with the electric surfboard 5. In this embodiment, the first switch can be specifically selected as a pressure-sensitive switch or a capacitive touch switch, and the second switch can be specifically selected as a mechanical contact switch. Of course, this invention does not specifically limit the type of the first and / or second switches; manufacturers can choose appropriate types of switches based on specific production and cost requirements.

[0036] Accordingly, see further Figure 2 As can be seen, to facilitate user operation, the battery pack 1 designed in this utility model is additionally equipped with a cover plate, as well as convenient accessories such as threaded holes 3 and fixed handles 4 on the cover plate. The threaded holes 3 are used to install and fix surfboard pedals. Specifically, the pedals can be secured to the upper surface of the battery pack 1's housing 11 by bolts passing through and threaded into the threaded holes 3. At this time, the user can directly insert their foot into the pedal to bind it to the electric surfboard 5, preventing the user from falling into the water from the electric surfboard 5 during high-speed movement.

[0037] Furthermore, to facilitate the disassembly and replacement of the battery pack 1, in this embodiment, a cover plate is provided on the upper surface of the housing 11 of the battery pack 1, and a fixed handle 4 is installed on the cover plate. This fixed handle 4 not only assists the user in gripping and disassembling the battery pack 1, but also facilitates the user's grip during surfing to stabilize their posture on the surfboard. Of course, in some embodiments, the fixed handle 4 can also be directly installed on the upper surface of the housing 11 of the battery pack 1.

[0038] Of course, in some other embodiments, in order to achieve a more aesthetically pleasing effect, a telescopic handle can also be provided, which includes an extended state and a retracted state; and the telescopic handle can specifically include a telescopic rod and a gripping member, wherein the telescopic rod includes a first rod body and a second rod body that are slidably connected, the first rod body is connected to the housing 11 of the battery pack 1, one end of the second rod body is sleeved in the first rod body, and the other end is connected to the gripping member.

[0039] In practical applications, the second rod of the telescopic handle can slide relative to the first rod to move the gripper closer to or further away from the upper surface of the housing 11 of the battery pack 1, thereby allowing the telescopic handle to switch between an extended state and a retracted state. In the extended state, the gripper is positioned higher than the upper surface of the housing 11 of the battery pack 1 in the vertical direction; in the retracted state, the gripper is positioned equal to or lower than the upper surface of the housing 11 of the battery pack 1 in the vertical direction.

[0040] In the description of the embodiments of this application, it should be understood that the terms "upper surface", "lower surface", etc. used in this application indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art.

[0041] In summary, this utility model designs a novel battery pack 1 for an electric surfboard 5. The battery pack 1 adjusts its power supply circuit by adding a first switch and a second switch. The first switch closes when the housing 11 contacts a human body, and the second switch closes when the housing 11 contacts the surfboard 5. The power supply circuit is only activated when both the first and second switches are closed simultaneously. Power is supplied to the power port 2 using battery cells. This design avoids electric shock caused by accidental contact after the battery pack 1 is removed from the surfboard, thus greatly improving electrical safety. It has good prospects for promotion and application value.

[0042] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A battery pack for an electric surfboard, characterized in that, include: The housing is also provided with a power supply port. A battery cell unit is disposed in the housing and is electrically connected to the power supply port through a power supply circuit. The power supply circuit is provided with a first switch and a second switch, so that when the first switch and the second switch are closed, the power supply circuit is turned on and the battery cell unit supplies power to the power supply port. The first switch is used to close when the housing comes into contact with a human body; the second switch is used to close when the housing comes into contact with the board of the electric surfboard.

2. The battery pack according to claim 1, characterized in that, The first switch is positioned near the upper surface of the housing.

3. The battery pack according to claim 1, characterized in that, The first switch is a pressure-sensitive switch or a capacitive touch switch.

4. The battery pack according to claim 1, characterized in that, The second switch is located near the lower surface of the housing.

5. The battery pack according to claim 1, characterized in that, The second switch is a mechanical contact switch.

6. The battery pack according to claim 1, characterized in that, It also includes a foot pedal, which is detachably mounted on the upper surface of the housing.

7. The battery pack according to claim 1, characterized in that, It also includes a fixed handle, which is located on the upper surface of the housing.

8. The battery pack according to claim 1, characterized in that, It also includes a telescopic handle, which includes a telescopic rod and a gripper. The telescopic rod includes a first rod body and a second rod body that are slidably connected. The first rod body is connected to the housing. One end of the second rod body is sleeved inside the first rod body, and the other end of the second rod body is connected to the gripper. The second rod body slides relative to the first rod body to move the gripper closer to or away from the upper surface of the housing.

9. The battery pack according to claim 8, characterized in that, The telescopic handle includes an extended state and a retracted state; wherein, in the extended state, the gripping member is positioned above the upper surface of the housing in the vertical height direction; and in the retracted state, the gripping member is positioned equal to or below the upper surface of the housing in the vertical height direction.

10. An electric surfboard, characterized in that, Includes the battery pack as described in any one of claims 1-9.