Underwater flashlight based on wireless signal transmission and wireless power transmission

Abstract

The utility model discloses an underwater flashlight based on wireless signal transmission and wireless power transmission. Comprising a flashlight body and a battery cover, one end of the flashlight body is provided with a lamp cap, the other end of the flashlight body is provided with a battery bin used for containing a battery, and a bearing port used for being connected with the battery cover is formed in the position of the battery bin. A first circuit board is arranged in the flashlight body, a first wireless charging coil is arranged on the inner wall close to the bearing port, a bearing end locked with the bearing port is arranged at one end of the battery cover, and an operation interface is arranged at the other end of the battery cover. A second circuit board is arranged in the battery cover, and a second wireless charging coil is arranged on the inner wall close to the bearing end. The design that a conductive ejector pin and an annular conductive sheet are omitted between the flashlight body and the battery cover is adopted, and the accident of poor contact caused by oxidation or abrasion of the flashlight body and the battery cover is avoided through wireless signal transmission and wireless power transmission.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater flashlights, in particular to an underwater flashlight based on wireless signal transmission and wireless power transmission. Background Art

[0002] At present, the battery forms of existing underwater flashlights are generally divided into two types. One is the built-in battery. The main design is to set the battery inside, which cannot be replaced and is directly charged through the charging port. The disadvantages of this type of flashlight are that, on the one hand, the battery cannot be replaced. Once the battery has a problem, the whole will be scrapped. And once the battery runs out of power, it can only be used after charging. In addition, the charging port is sealed by a soft rubber plug, which is very easy to lose its protective effect under the action of underwater pressure and is prone to water seepage.

[0003] Therefore, in underwater flashlights, more people will choose the other type, that is, it is designed as an exposed battery cavity. The battery is installed in the battery compartment, and the assembly effect is achieved by screwing the battery cover. Although this type of flashlight has more advantages than the built-in battery, in terms of controlling the lamp, because it is underwater, in order to facilitate users to better control the flashlight, the control interface of the flashlight is directly set on the battery cover. However, after such a design, it is necessary to ensure the circuit connection between the battery cover and the flashlight body. Currently, it is basically connected by a conductive thimble and a ring-shaped conductive sheet at the other end. This connection setting has the following problems in long-term underwater (especially seawater) use. On the one hand, under the repeated rotation and screwing of the battery cover, there will be wear between the conductive thimble and the ring-shaped conductive sheet. On the other hand, during the process of replacing the battery, it is inevitable that the conductive thimble and the ring-shaped conductive sheet (the materials are basically copper with good conductivity) come into contact with water, resulting in oxidation and thus causing problems such as poor contact. Summary of the Utility Model

[0004] Aiming at the deficiencies existing in the above-mentioned prior art, the purpose of the utility model is to provide an underwater flashlight based on wireless signal transmission and wireless power transmission.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An underwater flashlight based on wireless signal transmission and wireless power transmission, comprising a flashlight body and a battery cover. One end of the flashlight body is provided with a lamp head, and the other end of the flashlight body is provided with a battery compartment for placing a battery, and a receiving port for connecting the battery cover is arranged at the position of the battery compartment. A first circuit board is arranged inside the flashlight body, and a first wireless charging coil is arranged on the inner wall near the receiving port. One end of the battery cover is provided with a receiving end head for locking with the receiving port, and the other end of the battery cover is provided with an operation interface. A second circuit board is arranged inside the battery cover, and a second wireless charging coil is arranged on the inner wall near the receiving end head. Battery plates are arranged on the first circuit board inside the battery compartment and on the second circuit board at the receiving end head. The lamp head and the first wireless charging coil are electrically connected to the first circuit board, the operation interface and the second wireless charging coil are electrically connected to the second circuit board, and the first circuit board and the second circuit board are wirelessly connected through Bluetooth communication.

[0007] Preferably, a rechargeable battery is further arranged inside the battery cover, and the rechargeable battery is electrically connected to the second circuit board.

[0008] Preferably, the first circuit board is integrated with a first main control chip, a wireless charging control circuit, and a power supply step-down circuit, and the second circuit board is integrated with a second main control chip, a self-locking circuit, and a charging circuit. The first main control chip is connected to the wireless charging control circuit, the wireless charging control circuit is respectively connected to the power supply step-down circuit and the first wireless charging coil, the power supply step-down circuit is connected to the battery compartment, the second main control chip is connected to the operation interface and the self-locking circuit, the self-locking circuit is connected to the rechargeable battery, and the charging circuit is connected to the second wireless charging coil and the rechargeable battery.

[0009] Preferably, both the first main control chip and the second main control chip are MCU chips with built-in Bluetooth communication functions.

[0010] Preferably, the operation interface is a combination of a display screen and a waterproof button or a waterproof knob.

[0011] Preferably, a connecting bracket for mounting on an external device is arranged at the bottom of the flashlight body.

[0012] Due to the adoption of the above scheme, in the present utility model, the design of conductive thimbles and annular conductive sheets is abandoned between the flashlight body and the battery cover. By adopting the form of wireless charging coils, the power supply of the flashlight body is transmitted to the battery cover in a wireless transmission form, and by establishing Bluetooth communication between the flashlight body and the battery cover, wireless signal transmission between the flashlight body and the battery cover is formed, so that the whole is based on wireless signal transmission and wireless power transmission, avoiding accidents of poor contact caused by oxidation or wear between the flashlight body and the battery cover. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model.

[0014] Figure 2 It is a schematic structural diagram after the electric cylinder body and the battery cover of an embodiment of the present utility model are separated.

[0015] Figure 3 It is an exploded view of the structure of an embodiment of the present utility model.

[0016] Figure 4 It is a schematic diagram of the principle of the circuit system of an embodiment of the present utility model.

[0017] Figure 5 It is a schematic structural diagram of the wireless charging control circuit of an embodiment of the present utility model.

[0018] Figure 6 It is a schematic structural diagram of the power supply buck circuit of an embodiment of the present utility model.

[0019] Figure 7 It is a schematic structural diagram of the charging circuit of an embodiment of the present utility model.

[0020] Figure 8 It is a schematic structural diagram of the self-locking circuit of an embodiment of the present utility model. Detailed implementation manners

[0021] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection. It may be a mechanical connection or an electrical connection. It may be a direct connection or an indirect connection through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] As Figures 1 to 8 shown, an underwater flashlight based on wireless signal transmission and wireless power transmission provided in this embodiment includes a flashlight body 1 and a battery cover 2. One end of the flashlight body 1 is provided with a lamp head 11, and the other end of the flashlight body 1 is provided with a battery compartment 12 for placing a battery 3, and a receiving port 13 for connecting the battery cover 2 is provided at the position of the battery compartment 12. A first circuit board 14 is arranged inside the flashlight body 1, and a first wireless charging coil 15 is arranged on the inner wall near the receiving port 13. One end of the battery cover 2 is provided with a receiving end 21 that is locked with the receiving port 13. The locking method can be in the form of a thread or a buckle, etc., and a sealing ring is provided at the locking position. The other end of the battery cover 2 is provided with an operation interface 22. A second circuit board 23 is arranged inside the battery cover 2, and a second wireless charging coil 24 is arranged on the inner wall near the receiving end 21. Battery pieces 121 are arranged at the positions where the first circuit board 14 is located in the battery compartment 12 and the second circuit board 23 is located at the receiving end 21. The lamp head 11 and the first wireless charging coil 15 are electrically connected to the first circuit board 14, the operation interface 22 and the second wireless charging coil 24 are electrically connected to the second circuit board 23, and the first circuit board 14 and the second circuit board 23 are wirelessly communicatively connected via Bluetooth.

[0025] This embodiment is mainly based on wireless signal transmission and wireless power transmission as a whole, to avoid accidents of poor contact caused by oxidation or wear of the electric cylinder body 1 and the battery cover 2. After the electric cylinder body 1 and the battery cover 2 are connected, that is, after being locked, the first wireless charging coil 15 on the electric cylinder body 1 and the second wireless charging coil 24 on the battery cover 2 are in a mutually facing position, and the distance is less than 1 cm. The power inside the electric cylinder body 1 can be transmitted through the first wireless charging coil 15. According to the wireless charging protocol, it is received by the second wireless charging coil 24, and the power is transmitted to the inside of the battery cover 2 to meet the power demand for the internal operation of the battery cover 2. And when the battery cover 2 is a component for the user to operate, after the user gives a corresponding operation instruction through the operation interface 22, the established Bluetooth communication protocol sends the information to the electric cylinder body 1. After the electric cylinder body 1 receives the corresponding information, it controls various operations of the lamp head 11, such as turning on and off, increasing and decreasing the brightness, etc.

[0026] Furthermore, to avoid real-time power transmission through wireless means. Because if the power has been relying on wireless transmission for implementation, if the electromagnetic wave is unstable, it may cause the operation of the battery cover 2 to be interrupted, making the control work unstable. Therefore, this embodiment specifically sets a rechargeable battery 25 inside the battery cover 2. The rechargeable battery 25 is electrically connected to the second circuit board 23, and the electrical energy is pre-stored by relying on the rechargeable battery 25, so that the working electrical energy of the subsequent battery cover 2 is supplied by the rechargeable battery 25.

[0027] Furthermore, for the specific circuit module design, the first circuit board 14 of this embodiment integrates a first main control chip 101, a wireless charging control circuit 102, and a power step-down circuit 103. The second circuit board 23 integrates a second main control chip 201, a self-locking circuit 202, and a charging circuit 203. The first main control chip 101 is connected to the wireless charging control circuit 102. The wireless charging control circuit 102 is respectively connected to the power step-down circuit 103 and the first wireless charging coil 12. The power step-down circuit 103 is connected to the battery compartment 12. And for the connection of the lamp head 11, it is connected to the first main control chip 101. The circuit module of the lamp head 11 itself is a conventional design, such as the combination of an LED driving circuit and a lamp board. Therefore, this embodiment does not specifically limit and elaborate on the specific circuit module of the lamp head 11. The second main control chip 201 is connected to the operation interface 22 and the self-locking circuit 202. The self-locking circuit 202 is connected to the rechargeable battery 25. The charging circuit 203 is connected to the second wireless charging coil 24 and the rechargeable battery 25.

[0028] Furthermore, the first main control chip 101 and the second main control chip 201 of this embodiment are both MCU chips with built-in Bluetooth communication functions, and the specific model can adopt CH582M.

[0029] Furthermore, the operation interface 22 in this embodiment may specifically be a combination of a display screen and components such as a waterproof button or a waterproof knob.

[0030] Furthermore, to facilitate connection to external devices, a connection bracket 16 for mounting on an external device is provided at the bottom of the electric barrel body 1 in this embodiment.

[0031] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. An underwater flashlight based on wireless signal transmission and wireless power transmission, characterized in that: It includes an electric barrel body and a battery cover. One end of the electric barrel body is provided with a lamp head, and the other end of the electric barrel body is provided with a battery compartment for placing a battery, and a receiving port for connecting the battery cover is provided at the position of the battery compartment. A first circuit board is arranged inside the electric barrel body, and a first wireless charging coil is arranged on the inner wall near the receiving port. One end of the battery cover is provided with a receiving end head for locking with the receiving port, and the other end of the battery cover is provided with an operation interface. A second circuit board is arranged inside the battery cover, and a second wireless charging coil is arranged on the inner wall near the receiving end head. Battery pieces are arranged on the first circuit board located in the battery compartment and on the second circuit board located at the receiving end head. The lamp head and the first wireless charging coil are electrically connected to the first circuit board, the operation interface and the second wireless charging coil are electrically connected to the second circuit board, and the first circuit board and the second circuit board are wirelessly connected through Bluetooth communication.

2. The underwater flashlight based on wireless signal transmission and wireless power transmission according to claim 1, characterized in that: A rechargeable battery is also arranged inside the battery cover, and the rechargeable battery is electrically connected to the second circuit board.

3. The underwater flashlight based on wireless signal transmission and wireless power transmission according to claim 2, wherein: The first circuit board is integrated with a first main control chip, a wireless charging control circuit, and a power supply step-down circuit. The second circuit board is integrated with a second main control chip, a self-locking circuit, and a charging circuit. The first main control chip is connected to the wireless charging control circuit. The wireless charging control circuit is respectively connected to the power supply step-down circuit and the first wireless charging coil. The power supply step-down circuit is connected to the battery compartment. The second main control chip is connected to the operation interface and the self-locking circuit. The self-locking circuit is connected to the rechargeable battery. The charging circuit is connected to the second wireless charging coil and the rechargeable battery.

4. The underwater flashlight based on wireless signal transmission and wireless power transmission as described in claim 3, characterized in that: Both the first main control chip and the second main control chip are MCU chips with built-in Bluetooth communication functions.

5. The underwater flashlight based on wireless signal transmission and wireless power transmission according to claim 1, characterized in that: The operation interface is a combination of a display screen and a waterproof button or a waterproof knob.

6. The underwater flashlight based on wireless signal transmission and wireless power transmission according to claim 1, wherein: A connection bracket for mounting on an external device is provided at the bottom of the electric barrel body.

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