Bicycle headlight

Abstract

The utility model discloses a bicycle headlight which comprises a light body and a light holder which are connected with each other, the light body comprises a cylindrical light body shell, a storage battery and a control circuit board, and the light holder comprises a cylindrical light holder shell, a light bead driving board and a lens. A heat insulation baffle provided with a first avoiding hole is arranged on the side face of the first end of the lamp body shell, and a limiting baffle provided with a second avoiding hole is arranged on the side face of the second end of the lamp body shell. The first end of the lamp body shell is inserted into the lamp holder shell, the first end of the control circuit board penetrates through the first receding hole to be connected to the lamp bead driving board, the second end of the control circuit board is connected with a power connector, and the power connector extends out of the second receding hole to be exposed. The power connector is configured to be able to charge the battery and to be able to charge an external electronic device with electrical energy of the battery. According to the bicycle headlight, heat emitted by the light source can be prevented from being conducted to the battery so as to improve safety, and emergency charging can be carried out on electronic equipment carried by a rider.

Description

Technical Field

[0001] The utility model belongs to the technical field of bicycle lights, and in particular relates to a bicycle headlight. Background Art

[0002] With the development of society, more and more people use bicycles as fitness equipment for cycling exercises and bicycle tours. When using bicycles at night or in low-light environments, the rider's ability to recognize road conditions is weak, so it is usually necessary to install a bicycle headlight in front of the bicycle for lighting so that the road surface can be seen clearly in low light conditions. Existing bicycle lights, in order to reduce the size and make it easier to carry, usually encapsulate the battery, circuit board and LED light source in the same shell cavity. The LED light source generates a lot of heat when it emits light, and it is necessary to reduce the heat emitted by the light source and conduct it to the battery to improve safety. In addition, for some cyclists who like long-distance cycling, they usually carry electronic devices such as smart phones, smart watches, headphones, etc. with them when riding. If these electronic devices run out of power during the ride, it will cause great trouble to the cyclist. Utility Model Content

[0003] In view of this, the utility model provides a bicycle headlight with a compact structure and small size, which can reduce the heat emitted by the light source and be conducted to the battery to improve safety, and can perform emergency charging for electronic devices carried by the rider.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A bicycle headlight comprises a lamp body and a lamp head connected to each other, wherein the lamp body comprises a cylindrical lamp body shell and a battery and a control circuit board assembled in the lamp body shell; the lamp head comprises a cylindrical lamp head shell and a lamp bead driving board and a lens assembled in the lamp head shell; the lamp bead driving board is connected to an LED lamp bead; and the lens cover is arranged on the LED lamp bead;

[0006] A heat-insulating baffle with a first avoidance hole is provided on the first end side of the lamp body shell, and a limit baffle with a second avoidance hole is provided on the second end side of the lamp body shell, and the battery and the control circuit board are located between the heat-insulating baffle and the limit baffle;

[0007] The first end of the lamp body shell is inserted into the lamp head shell, the first end of the control circuit board is connected to the lamp bead driving board through the first avoidance hole, and the second end of the control circuit board is connected to a power connector, which extends and is exposed from the second avoidance hole. The power connector is configured to charge the battery and to charge external electronic devices with the power of the battery.

[0008] Preferably, a back cover is connected to the limit baffle, and a groove is provided on the surface of the back cover facing away from the limit baffle. A limiting hole is provided in the groove corresponding to the position of the power connector, and the power connector exposed from the second avoidance hole is inserted into the limiting hole. A waterproof pad covering the power connector is installed on the groove.

[0009] Preferably, a connecting hole is opened in the groove on one side of the limiting hole, and the waterproof pad includes a covering portion and a flexible connector, the covering portion is engaged in the groove and covers the power connector, the first end of the flexible connector is connected to the bottom surface of the covering portion, and the second end of the flexible connector extends through the connecting hole to the inside of the lamp body shell; a stop portion is provided on the protrusion of the flexible connector located on the inner side of the connecting hole to prevent the second end of the flexible connector from falling out of the connecting hole.

[0010] Preferably, the covering portion, the flexible connector and the stop portion are integrally formed and connected using a flexible material.

[0011] Preferably, a plurality of outwardly diverging V-shaped water guide grooves are provided on the surface of the rear cover facing away from the limiting baffle at the periphery of the groove.

[0012] Preferably, the power connector is a Type-C connector.

[0013] Preferably, a switch button connected to the control circuit board is provided on the upper surface of the lamp body shell, and a connecting buckle connected to the bicycle is provided on the lower surface of the lamp body shell.

[0014] Preferably, an MCU control chip, a Bluetooth communication module and a brightness control module are provided on the control circuit board, and the Bluetooth communication module and the brightness control module are respectively connected to the MCU control chip; the Bluetooth communication module is used to communicate with an external bicycle computer, and transmit the ambient brightness signal and / or riding speed signal detected and obtained by the bicycle computer to the MCU control chip, and the MCU control chip sends a control instruction to the brightness control module according to the ambient brightness signal and / or the riding speed signal, and the brightness control module controls the brightness of the LED lamp beads on the lamp bead driver board according to the control instruction.

[0015] The bicycle headlight provided by the present invention comprises a cylindrical lamp body housing and a lamp head housing that are pluggable together. A battery and a control circuit board are assembled within the lamp body housing, and a light source assembly including a lamp driver board is assembled within the lamp head housing. This bicycle headlight has the advantages of being compact, small, and easy to carry. It occupies little space when mounted on a bicycle, and the cylindrical housing provides excellent sealing and enhanced waterproof and dustproof properties. A heat-insulating baffle is provided on the end face where the lamp body housing plugs into the lamp head housing, isolating the lamp driver board from the battery. This reduces the heat generated by the light source from being transferred to the battery, thereby improving the safety of the bicycle headlight. Furthermore, the bicycle headlight is provided with a power connector capable of charging and discharging. If the electronic devices carried by the rider run out of power during riding, the bicycle headlight can serve as a mobile power source for emergency charging, thereby alleviating unnecessary inconvenience for the rider during riding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the appearance and structure of a bicycle headlight in an embodiment of the present utility model;

[0017] Figure 2 This is a schematic structural diagram of a bicycle headlight in an embodiment of the present invention after the housing is removed;

[0018] Figure 3 1 is an exploded structural diagram of a bicycle headlight in an embodiment of the present utility model;

[0019] Figure 4 It is a diagram of the exploded structure of the interconnected portion of the waterproof pad and the back cover in an embodiment of the present utility model. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the present invention more apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the accompanying drawings. The embodiments of the present invention shown in and described with reference to the accompanying drawings are merely exemplary, and the present invention is not limited to these embodiments.

[0021] It should be noted that the same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0022] It should also be noted here that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0023] The present invention provides a bicycle headlight. Figures 1 to 4 The bicycle headlight comprises a lamp body 10 and a lamp head 20 connected to each other. The lamp body 10 mainly comprises a cylindrical lamp housing 11, a battery 12 and a control circuit board 13 assembled within the lamp housing 11. The lamp head 20 mainly comprises a cylindrical lamp housing 21, a lamp bead driving board 22 and a lens 23 assembled within the lamp housing 21. The lamp bead driving board 22 is connected to an LED lamp bead 24, and the lens 23 is disposed over the LED lamp bead 24.

[0024] The first end side of the lamp housing 11 is provided with a heat-insulating baffle 14, which is provided with a first avoidance hole 141. The second end side of the lamp housing 11 is provided with a limit baffle 15, which is provided with a second avoidance hole 151. The battery 12 and the control circuit board 13 are located between the heat-insulating baffle 14 and the limit baffle 15.

[0025] The first end of the lamp body housing 11 is inserted into the lamp base housing 21. The first end of the control circuit board 13 is connected to the lamp bead driver board 22 through the first avoidance hole 141. The second end of the control circuit board 13 is connected to the power connector 16, which extends and is exposed from the second avoidance hole 151. The power connector 16 is configured to be connected to an external power source to charge the battery 12, and can also be connected to an external electronic device to charge the external electronic device with the power from the battery 12. The power connector 16 is preferably a Type-C connector.

[0026] The upper surface of the lamp body shell 11 is provided with a switch button 30 connected to the control circuit board 13 , and the lower surface of the lamp body shell 11 is provided with a connecting buckle 40 connected to the bicycle.

[0027] The bicycle headlight described above has a housing comprising a cylindrical lamp body housing 11 and a lamp head housing 21 that are plugged into each other. A battery 12 and a control circuit board 13 are mounted within the lamp body housing 11, and a light source assembly including a lamp driver board 22 is mounted within the lamp head housing 21. This bicycle headlight has the advantages of being compact, small, and easy to carry. It occupies little space when mounted on a bicycle, and the cylindrical housing provides good sealing and better waterproof and dustproof properties. Furthermore, a heat-insulating baffle 14 is provided on the end face where the lamp body housing 11 is plugged into the lamp head housing 21, isolating the lamp driver board 22 from the battery 12. This reduces the heat emitted by the light source (LED lamp beads 24) from being transferred to the battery 12, thereby improving the safety of the bicycle headlight. Furthermore, a power connector 16 capable of charging and discharging is provided in the bicycle headlight. If the electronic devices carried by the rider run out of power during riding, the bicycle headlight can serve as a mobile power source for emergency charging of these electronic devices, thereby alleviating unnecessary inconvenience for the rider during riding.

[0028] Furthermore, in this embodiment, a rear cover 17 is connected to the limiting baffle 15. A recess 171 is provided on the surface of the rear cover 17 facing away from the limiting baffle 15. A limiting hole 172 is defined in the recess 171 at a position corresponding to the power connector 16. The power connector 16, which extends and is exposed from the second avoidance hole 151, is inserted into the limiting hole 172. A waterproof gasket 18 is mounted on the recess 171 to cover the power connector 16. The combination of the rear cover 17 and the waterproof gasket 18 not only seals the interior of the lamp body housing 11, but also forms a window exposing the power connector 16, facilitating connection of the power connector 16 to an external power source or external electronic device.

[0029] Furthermore, if Figure 4As shown, a connection hole 173 is formed in the groove 171 on one side of the limiting hole 172. The waterproof pad 18 includes a covering portion 181 and a flexible connector 182. The covering portion 181 is engaged with the groove 171 and covers the power connector 16. The first end of the flexible connector 182 is connected to the bottom surface of the covering portion 181, and the second end of the flexible connector 182 extends through the connection hole 173 into the interior of the lamp body housing 11. A stopper 183 is provided on the raised portion of the flexible connector 182 located inside the connection hole 173 to prevent the second end of the flexible connector 182 from falling out of the connection hole 173. In a preferred embodiment, the covering portion 181, the flexible connector 182, and the stopper 183 are integrally molded and connected using a flexible material.

[0030] Furthermore, in this embodiment, a plurality of outwardly diverging V-shaped water guide grooves 174 are provided on the surface of the rear cover 17 facing away from the limiting baffle 15 around the groove 171 .

[0031] As a preferred solution, in this embodiment, the control circuit board 13 is provided with an MCU control chip, a Bluetooth communication module and a brightness control module, and the Bluetooth communication module and the brightness control module are respectively connected to the MCU control chip. The Bluetooth communication module is used to communicate with an external bicycle computer, and transmit the ambient brightness signal and / or riding speed signal detected by the bicycle computer to the MCU control chip. The MCU control chip sends a control instruction to the brightness control module based on the ambient brightness signal and / or the riding speed signal. The brightness control module controls the brightness of the LED lamp beads 24 on the lamp bead driver board 22 according to the control instruction. Specifically, when the detected ambient light brightness is darker, the brightness of the LED lamp beads 24 is controlled to be greater; when the detected riding speed is faster, the brightness of the LED lamp beads 24 is controlled to be greater.

[0032] In summary, the bicycle headlight provided by the embodiment of the present invention can not only reduce the heat emitted by the light source and transferred to the battery to improve safety, but also can perform emergency charging for electronic devices carried by the rider.

[0033] The above is only a specific implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A bicycle headlight, comprising a lamp body and a lamp head connected to each other, characterized in that: The lamp body includes a cylindrical lamp body shell and a battery and a control circuit board assembled in the lamp body shell; the lamp head includes a cylindrical lamp head shell and a lamp bead driving board and a lens assembled in the lamp head shell; the lamp bead driving board is connected to the LED lamp bead, and the lens cover is arranged on the LED lamp bead; A heat-insulating baffle with a first avoidance hole is provided on the first end side of the lamp body shell, and a limit baffle with a second avoidance hole is provided on the second end side of the lamp body shell, and the battery and the control circuit board are located between the heat-insulating baffle and the limit baffle; The first end of the lamp body shell is inserted into the lamp head shell, the first end of the control circuit board is connected to the lamp bead driving board through the first avoidance hole, and the second end of the control circuit board is connected to a power connector, which extends and is exposed from the second avoidance hole. The power connector is configured to charge the battery and to charge external electronic devices with the power of the battery.

2. The bicycle headlight according to claim 1, characterized in that A back cover is connected to the limit baffle, and a groove is provided on the surface of the back cover facing away from the limit baffle. A limit hole is provided in the groove corresponding to the position of the power connector, and the power connector exposed from the second avoidance hole is inserted into the limit hole. A waterproof pad covering the power connector is installed on the groove.

3. The bicycle headlight according to claim 2, characterized in that A connecting hole is provided in the groove on one side of the limiting hole, and the waterproof pad includes a covering portion and a flexible connector. The covering portion is engaged in the groove and covers the power connector, and the first end of the flexible connector is connected to the bottom surface of the covering portion, and the second end of the flexible connector extends through the connecting hole to the inside of the lamp body shell; a stop portion is provided on the protrusion of the flexible connector located on the inner side of the connecting hole to prevent the second end of the flexible connector from falling out of the connecting hole.

4. The bicycle headlight according to claim 3, characterized in that The covering portion, the flexible connector and the stopper are integrally formed and connected using a flexible material.

5. The bicycle headlight according to claim 2, characterized in that: On the surface of the rear cover facing away from the limiting baffle, a plurality of outwardly diverging V-shaped water guide grooves are provided around the groove.

6. The bicycle headlight according to claim 1, characterized in that The power connector is a Type-C connector.

7. The bicycle headlight according to claim 1, characterized in that The upper surface of the lamp body shell is provided with a switch button connected to the control circuit board, and the lower surface of the lamp body shell is provided with a connecting buckle connected to the bicycle.

8. The bicycle headlight according to any one of claims 1 to 7, characterized in that: The control circuit board is provided with an MCU control chip, a Bluetooth communication module and a brightness control module, and the Bluetooth communication module and the brightness control module are respectively connected to the MCU control chip; the Bluetooth communication module is used to communicate with an external bicycle computer, and transmit the ambient brightness signal and / or riding speed signal detected by the bicycle computer to the MCU control chip. The MCU control chip sends a control instruction to the brightness control module according to the ambient brightness signal and / or the riding speed signal, and the brightness control module controls the brightness of the LED lamp beads on the lamp bead driver board according to the control instruction.

Images