Portable lighting device

By employing a knob lock mechanism and a flexible contact design, the problems of difficult battery replacement and poor contact in portable work lights are solved, enabling quick disassembly and assembly of the battery compartment and stable connection, thereby improving the service life and reliability of the equipment.

CN224188553UActive Publication Date: 2026-05-01NINGBO BRIGHT ELECTRIC
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-15
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing portable work lights have batteries that are either non-removable or have traditional snap-fit ​​connections that are prone to wear, leading to difficulties in battery replacement, poor contact, and the risk of detachment. They are also unreliable, especially in environments with vibration and extreme temperatures.

Method used

The battery compartment is quickly locked and released by using a knob lock mechanism, which drives the locking plate to engage or disengage from the locking slot via a knob. Combined with the elastic contacts and detachable compartment design, the battery compartment is guaranteed to be stable and reliable in harsh environments.

Benefits of technology

It simplifies the battery replacement process, improves maintenance convenience and wear resistance, reduces the risk of detachment due to vibration, extends equipment lifespan, and enhances reliability and safety in industrial and outdoor scenarios.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224188553U_ABST
    Figure CN224188553U_ABST
Patent Text Reader

Abstract

The embodiment of the utility model discloses a portable lighting device, which comprises a lamp body, a light source, a light source and a power source, the battery compartment can be inserted into the mounting opening, and the battery compartment is used for accommodating a power supply unit; the knob lock mechanism comprises a knob arranged at the end part of the battery compartment and a lock plate connected with the knob, and a lock groove is formed in the side wall of the mounting opening; and the knob can rotate around the axis of the knob to drive the locking plate to be clamped into or separated from the locking groove, so that the battery compartment is fixed or released. According to the portable lighting device, the battery bin is rapidly locked and released through the knob lock mechanism, the operation process is simplified, the maintenance efficiency is improved, the abrasion resistance and the vibration resistance are remarkably improved, and it is ensured that the portable lighting device is still stable and reliable in high-frequency use and severe environments.
Need to check novelty before this filing date? Find Prior Art

Description

A portable lighting device Technical Field

[0001] This utility model relates to the field of lighting fixtures, and more specifically, to a portable lighting device. Background Technology

[0002] With the widespread use of portable work lights in industrial, outdoor, and home settings, users' demands for functionality, durability, and ease of maintenance are increasing. However, the battery design of existing work lights still has significant limitations: most products use a non-removable integrated battery structure, making it difficult to replace the battery when it ages or is damaged, which greatly shortens the product's lifespan; while some designs that support battery replacement rely on traditional snap-fit ​​connections, which, although offering some removability, are prone to poor contact or even accidental battery compartment detachment after long-term use due to wear and tear of the snaps or loosening of the structure, especially in harsh environments such as vibration and extreme temperatures. Summary of the Invention

[0003] This utility model aims to address one of the technical problems in related technologies to a certain extent. To this end, this utility model proposes a portable lighting device that uses a rotary lock mechanism to quickly lock and release the battery compartment. This not only simplifies the operation process and improves maintenance efficiency but also significantly enhances wear and vibration resistance, ensuring stable and reliable operation even under high-frequency use and harsh environments.

[0004] The technical solution adopted by this utility model is: to provide a portable lighting device, comprising:

[0005] The lamp body has a mounting port;

[0006] A battery compartment that can be inserted into the mounting port, and the battery compartment is used to accommodate a power supply unit;

[0007] The knob lock mechanism includes a knob located at the end of the battery compartment and a locking piece connected to the knob, and the mounting port sidewall is provided with a locking groove;

[0008] The knob can rotate around its axis, driving the locking plate to engage or disengage from the locking groove, thereby securing or releasing the battery compartment.

[0009] With the above structure, the battery compartment assembly and disassembly process is simpler and more reliable: users only need to rotate the knob to lock or release the battery compartment, greatly improving maintenance convenience. At the same time, the knob locking mechanism has stronger durability and fatigue resistance than snap-fit ​​connections, effectively avoiding loosening and wear caused by prolonged use, ensuring the battery compartment maintains good contact stability even under high-frequency disassembly or harsh environments. Furthermore, the mechanical fit between the locking plate and the locking groove provides stronger vibration resistance, reducing the risk of accidental detachment caused by external impacts or equipment vibration, thereby extending the overall service life of the device and improving the reliability and safety of the product in complex industrial and outdoor environments.

[0010] According to one embodiment of the present invention, the knob is provided with a rotating shaft, the locking plate is fixed to the end of the rotating shaft, the battery compartment is provided with a shaft hole that cooperates with the rotating shaft, and the rotating shaft can rotate relative to the shaft hole; when the user rotates the knob, the rotating shaft drives the locking plate to rotate around its axis, and the locking plate enters or disengages from the locking groove on the side wall of the mounting port, thereby locking or releasing the battery compartment.

[0011] According to one embodiment of the present invention, a compartment plate is detachably provided inside the battery compartment, and the compartment plate and the side wall of the battery compartment form an accommodating space. The locking plate is movably disposed within the accommodating space. The accommodating space is used to limit the movement range of the locking plate and provide it with stable guiding support, ensuring that the locking plate can accurately enter or disengage from the locking groove under the drive of the knob, avoiding jamming or displacement. At the same time, the detachable design of the compartment plate facilitates later maintenance or replacement of the locking plate components, improves the maintainability and modularity of the overall structure, and helps to improve the service life and adaptability of the device.

[0012] According to one embodiment of the present invention, the inner wall of the battery compartment is provided with at least one slot, and the compartment piece is correspondingly provided with an elastic locking block, the locking block engaging with the slot to fix the compartment piece; and / or

[0013] The locking plate is provided with a clearance groove. The knob and the locking plate are connected by fasteners. The clearance groove is designed to prevent the head of the fastener from interfering with it, thereby ensuring that the knob is not obstructed during rotation and improving the smoothness and reliability of the locking plate's operation.

[0014] According to one embodiment of the present invention, the knob includes at least one of the following features:

[0015] The surface has raised toggle parts, which make it easy for users to directly toggle the knob with their fingers, improving the ease of operation;

[0016] The surface has a tool slot, which can be rotated with the help of tools such as screwdrivers and Allen wrenches, making it suitable for occasions where space is limited or where increased rotational torque is required;

[0017] The inner end is provided with a positioning post, and the locking plate is provided with a slot that fits the positioning post with a clearance. Through the cooperation between the positioning post and the slot, the locking plate and the knob are reliably connected and rotated synchronously, avoiding misalignment or free rotation, and ensuring the precise and stable response of the locking structure.

[0018] It is connected to the locking plate by fasteners.

[0019] According to one embodiment of the present invention, the locking piece is a metal sheet, the outer edge of which matches the shape of the locking groove; and / or

[0020] The length direction of the locking groove is perpendicular to the insertion direction of the battery compartment.

[0021] According to one embodiment of the present invention, the outer shell of the lamp body is provided with a first light source and / or a second light source. The first light source is disposed on the outer periphery of the outer shell and is used to provide a wide-range ring lighting, which is suitable for ambient lighting or floodlighting of the work area and meets the headlamp lighting requirements.

[0022] The second light source is located at the end of the housing and is used to project a concentrated beam of light with strong directionality to meet the lighting requirements of a flashlight.

[0023] According to one embodiment of the present invention, the lamp body further includes at least one of the following features:

[0024] A back clip or a second magnetic part is provided on the side opposite to the first light source, which can be used to quickly fix and carry the lamp body on clothing, backpacks or metal surfaces, improving the flexibility of use;

[0025] The battery compartment is equipped with a first magnetic attraction part at the end, which can be used with the metal structure for adsorption and fixation, making it convenient for use in situations where there is no support or where inverted lighting is required, thus expanding the device's application capabilities in complex environments such as industrial and outdoor settings.

[0026] According to one embodiment of the present invention, the lamp body is provided with a sensor head, which is electrically connected to a first light source and / or a second light source to control its opening and closing. Through the motion sensing function of the sensor head, the light source can be automatically turned on or off according to the surrounding environment or the user's actions, realizing intelligent operation and improving user experience.

[0027] According to one embodiment of this utility model, the lamp body is provided with a PCB holder, which is electrically connected to the power supply unit through elastic contacts to ensure the stability and reliability of the circuit. The elastic contacts provide good contact pressure to prevent poor electrical contact due to vibration or frequent use; and / or

[0028] The lamp body is detachably provided with an end cap, and the second light source is integrated into the end cap, which facilitates the replacement or maintenance of the light source in the future. At the same time, the disassembly design also facilitates the cleaning and maintenance of the lamp body, enhancing the maintainability and adaptability of the lamp. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 is a perspective view of the lighting device in an embodiment of this utility model.

[0031] Figure 2 is an exploded view of the lighting device in an embodiment of this utility model.

[0032] Figure 3 is a top view of the lighting device in an embodiment of this utility model.

[0033] Figure 4 is a cross-sectional view of line AA in Figure 3.

[0034] Figure 5 is a perspective view of the battery compartment and power supply unit in an embodiment of this utility model.

[0035] Figure 6 is a schematic diagram of the battery compartment and power supply unit in an embodiment of this utility model.

[0036] Figure 7 is a perspective view of the knob and locking plate in an embodiment of this utility model.

[0037] Figure 8 is an exploded view of the battery compartment, compartment plate, knob and locking plate in an embodiment of this utility model.

[0038] Figure 9 is an exploded view of the knob and locking plate in an embodiment of this utility model.

[0039] Figure 10 is a perspective view of the lighting device in an embodiment of this utility model.

[0040] Figure 11 is a schematic diagram of the structure of the first light source in an embodiment of this utility model.

[0041] Figure 12 is a perspective view of the PCB holder in an embodiment of this utility model.

[0042] Explanation of the labels in the diagram:

[0043] 1. Outer shell; 2. First light source; 3. Sensor head; 4. End cap; 5. Battery compartment; 6. Power supply unit; 7. Knob; 8. First magnetic attachment; 9. Back clip; 10. Second magnetic attachment; 11. Locking plate; 12. Second light source; 13. PCB base; 14. Spring contact; 15. Compartment plate;

[0044] 1a. Lock slot; 1b. Mounting port;

[0045] 51. Through groove; 52. Shaft hole; 53. Snap groove;

[0046] 61. Top cover; 62. Bottom cover; 63. Battery cell; 64. Charging port;

[0047] 71. Actuating part; 72. Tool slot; 73. Shaft; 74. Positioning pin; 75. Screw hole;

[0048] 11a. Slot;

[0049] 15a, Block; 15b, Clearance groove. Detailed Implementation

[0050] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. Embodiments

[0051] As shown in Figures 1-9, this embodiment discloses a portable lighting device, including:

[0052] The lamp body has a mounting port 1b;

[0053] Battery compartment 5, which can be inserted into the mounting port 1b, and battery compartment 5 is used to accommodate power supply unit 6;

[0054] The knob 7 locking mechanism includes a knob 7 located at the end of the battery compartment 5 and a locking piece 11 connected to the knob 7. The mounting port 1b has a locking groove 1a on its side wall.

[0055] The knob 7 can rotate around its axis, driving the locking piece 11 to engage or disengage from the locking groove 1a, thereby fixing or releasing the battery compartment 5.

[0056] Furthermore, referring to Figures 2-4, in this embodiment, the lamp body includes a housing 1, which is an integrally formed through-shell structure. One end of the housing 1 is detachably connected to an end cap 4, and the other end has a mounting port 1b for inserting and installing the battery compartment 5. The battery compartment 5 can slide into the mounting port 1b along the axial direction of the housing and is stably positioned inside the lamp body, ensuring the reliability of the power supply connection. The side of the battery compartment 5 has an opening for accommodating a power supply unit 6, which is a rechargeable battery, facilitating repeated use and extending the overall service life of the device.

[0057] In this embodiment, the power supply unit 6 further includes an upper cover 61, a lower cover 62, and a battery cell 63 assembly located between the two. The battery cell 63 is sealed in a closed space formed by the upper cover 61 and the lower cover 62 using a sealing process to prevent dust and moisture from entering and affecting the performance of the battery cell 63. The battery cell 63 is provided with a charging port 64 for power replenishment. The charging port 64 extends out of the upper cover 61 and is partially exposed on the outer surface of the battery compartment 5, so that an external power source can charge the battery cell 63 through the charger interface, ensuring the convenience and safety of the charging operation.

[0058] Furthermore, in this embodiment, the front area of ​​the lamp body is provided with a first light source 2 and a sensor head 3 for on / off control. The sensor head 3 can sense human movements to achieve non-contact control and improve the intelligent operation experience. The rear of the lamp body is provided with a back clip 9 and a second magnetic suction part 10 to enhance its fixation ability and installation flexibility during use. The second magnetic suction part 10 is fixedly set on the outer surface of the back clip 9, preferably a permanent magnet structure, which can make the lamp body firmly attached to a metal surface, such as mechanical equipment, brackets, or vehicle shells 1, etc., suitable for various complex work scenarios. At the same time, through the back clip 9 structure, users can clip the lamp body to clothing, backpack shoulder straps, belts, etc., for easy carrying and hands-free operation, further expanding the application range and practicality of this device.

[0059] Furthermore, in this embodiment, the end of the battery compartment 5 is provided with a first magnetic attraction part 8, which is preferably a ring-shaped or disc-shaped permanent magnet, used to vertically attract the lamp body to the metal surface, thereby realizing the vertical fixed placement of the lamp body, meeting multi-angle lighting needs, and improving the flexibility of use. The end cover 4 is integrated with a first light source 2 for providing forward focused lighting, and is firmly connected to the outer shell 1 through a sealing structure. The sealing method can be a threaded connection or a snap-fit ​​sealing ring to ensure waterproof and dustproof performance, adapting to use in harsh environments such as outdoor or industrial environments.

[0060] A PCB holder 13 is installed inside the lamp housing 1. The PCB holder 13 supports and fixes the PCB board arranged on it. The PCB board is electrically connected to the first light source 2, the second light source 12, and the sensor head 3, forming a complete control and drive circuit. To enable quick connection and disconnection of the power supply unit 6, a pair of elastic contacts 14 are provided on one side of the PCB holder 13. The elastic contacts 14 adopt a spring-type or pin-type structure, which has good contact elasticity and conductivity. Correspondingly, a contact piece is provided at the corresponding position of the battery compartment 5. The contact piece is electrically connected to the power supply unit 6 and automatically contacts the elastic contacts 14 after the battery compartment 5 is inserted into the mounting port 1b, thereby realizing the electrical connection between the battery compartment 5 and the PCB board, the light source, and the sensor head 3, ensuring that the device is ready to use upon power-on, and improving structural reliability and ease of operation.

[0061] Specifically, referring to Figures 6-9, in this embodiment, the knob 7 is provided with a rotating shaft 73, and the locking plate 11 is fixedly connected to the end of the rotating shaft 73. The rotating shaft 73 is inserted into a pre-set shaft hole 52 on the battery compartment 5 and can rotate around the axis to drive the locking plate 11 to achieve locking or releasing operations. A compartment plate 15 is detachably installed inside the battery compartment 5. The compartment plate 15 and the side wall of the battery compartment 5 together form an accommodating space for accommodating the locking plate 11, limiting the range of motion of the locking plate 11 and providing guiding support to ensure the stability and reliability of its operation.

[0062] To ensure the secure installation of the battery compartment 15, at least one slot 53 is provided on the inner wall of the battery compartment 5. The edge of the battery compartment 15 is snapped into the battery compartment 5. The battery compartment 15 is provided with a corresponding elastic locking block 15a. The locking block 15a is inserted into the slot 53 by fitting, thereby positioning and fixing the battery compartment 15. This facilitates assembly and subsequent maintenance or replacement. Furthermore, the battery compartment 15 is provided with a clearance groove 15b. This clearance groove 15b is used to reserve installation space for the fastener between the knob 7 and the locking plate 11, preventing the fastener head from interfering with the battery compartment 15 during rotation or locking. This ensures the smooth operation of the knob 7 and the compactness of the overall structure, thereby improving the functional stability and durability of the knob 7 locking mechanism.

[0063] Specifically, as shown in Figures 6-9, the knob 7 includes a tool groove 72 on its surface, a raised actuating part 71, a positioning post 74 at its inner end, and a screw hole 75 on the knob 7. Screws are used as fasteners, which pass through the locking plate 11 and are threaded into the screw hole 75. The actuating part 71 allows the user to directly move the knob 7 with their fingers, improving ease of operation. The tool groove 72 can be rotated using tools such as screwdrivers and Allen wrenches, suitable for situations where space is limited or where increased rotational torque is required. The locking plate 11 has a corresponding slot 11a that fits with the positioning post 74. Through the cooperation between the positioning post 74 and the slot 11a, a reliable connection and synchronous rotation between the locking plate 11 and the knob 7 are achieved, avoiding misalignment or free rotation, and ensuring accurate and stable response of the locking structure. The locking plate 11 is a metal sheet, and its outer edge matches the shape of the locking groove 1a. The length direction of the locking groove 1a is perpendicular to the insertion direction of the battery compartment 5. The battery compartment 5 is provided with a through groove 51, and the locking piece 11 passes through the through groove 51 and is engaged in the locking groove 1a.

[0064] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0065] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0066] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A portable lighting device, characterized in that, include: The lamp body has a mounting port; A battery compartment that can be inserted into the mounting port, and the battery compartment is used to accommodate a power supply unit; The knob lock mechanism includes a knob located at the end of the battery compartment and a locking plate connected to the knob. The mounting port sidewall is provided with a locking groove. The knob can rotate around its axis, driving the locking plate to engage or disengage from the locking groove, thereby fixing or releasing the battery compartment.

2. A portable lighting device according to claim 1, characterized in that: The knob has a rotating shaft, the locking plate is fixed to the end of the rotating shaft, the battery compartment has a shaft hole that mates with the rotating shaft, and the rotating shaft can rotate relative to the shaft hole.

3. A portable lighting device according to claim 2, characterized in that: The battery compartment is detachably equipped with a compartment plate, which forms an accommodating space with the side wall of the battery compartment, and the locking plate is movably disposed within the accommodating space.

4. A portable lighting device according to claim 3, characterized in that: The inner wall of the battery compartment is provided with at least one slot, and the compartment piece is provided with a corresponding elastic block. The block engages with the slot to fix the compartment piece; and / or the compartment piece is provided with a clearance groove.

5. A portable lighting device according to claim 1, characterized in that: The knob includes at least one of the following features: a raised toggle portion on the surface; a tool groove on the surface; a positioning post at the inner end; and a corresponding slot hole that fits the positioning post; and is connected to the locking plate by a fastener.

6. A portable lighting device according to claim 1, characterized in that: The locking plate is a metal plate, the outer edge of which matches the shape of the locking groove; and / or the length direction of the locking groove is perpendicular to the insertion direction of the battery compartment; and / or the power supply unit is provided with a charging port.

7. A portable lighting device according to claim 1, characterized in that: The lamp body has a first light source and / or a second light source on its outer casing. The first light source is located on the outer periphery of the outer casing, and the second light source is located at the end of the outer casing.

8. A portable lighting device according to claim 7, characterized in that: The lamp body also includes at least one of the following features: a back clip or a second magnetic part is provided on the side opposite to the first light source; a first magnetic part is provided at the end of the battery compartment.

9. A portable lighting device according to claim 7, characterized in that: The lamp body is equipped with a sensor head, which is electrically connected to a first light source and / or a second light source to control their opening and closing.

10. A portable lighting device according to claim 7, characterized in that: The lamp body is provided with a PCB base, which is electrically connected to the power supply unit through elastic contacts; and / or the lamp body is detachably provided with an end cover, and the second light source is integrated into the end cover.