A type of energy-storage LED string controller
By integrating a battery and a specific hardware circuit board, the energy-saving LED string controller solves the problem of the single function of traditional controllers, realizing multi-functional control, convenient power display and portability, making it convenient for outdoor use.
Patent Information
- Application Number
- CN202522524360.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-27
AI Technical Summary
Traditional LED string controllers have limited functionality and lack diverse user interaction and management features, failing to meet user needs in different scenarios.
A rechargeable LED string controller was designed, which integrates a battery, microcontroller, pulse width modulation dimming circuit, timing control circuit, power detection circuit and status indication circuit. It has functions such as dimming, timing and power display, and realizes charging and discharging through Type-C interface. It is equipped with a hook for easy carrying.
It enables multi-functional control of LED light strings, meets the needs of different scenarios, provides convenient power display and timer functions, has a compact structure, is easy to use and energy-saving, and is easy to carry.
Smart Images

Figure CN224944719U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of string light controller technology, and more specifically, to a rechargeable LED string light controller. Background Technology
[0002] LED string lights are widely used in home decoration, shop advertising, camping lighting, and other scenarios due to their advantages such as energy saving, rich colors, and long lifespan. Especially in outdoor activities, LED string lights are often used as camping lights, providing convenience and adding color to camping life.
[0003] The switching and mode adjustment of LED string lights are achieved through LED string controllers. However, traditional LED string controllers typically only have simple switching or mode changing functions, and their interfaces are limited to those that match the LED string pins, thus only providing control over the LED string. Therefore, there is an urgent need for a more versatile LED string controller to provide a better user experience. Utility Model Content
[0004] In view of this, the purpose of this utility model is to provide a rechargeable LED string controller, which aims to solve the problems existing in the prior art.
[0005] According to this utility model, a rechargeable LED string controller is provided, comprising: a housing, a battery and a circuit board disposed within the housing, and a control panel disposed on the housing; wherein... The control panel is equipped with function buttons and status indicator lights; The housing is provided with a charging interface and a discharging interface; The circuit board integrates a microcontroller, a pulse width modulation dimming circuit, a timing control circuit, a power detection circuit, and a status indication circuit; the circuit board is electrically connected to the control panel and the battery. A hook is also rotatably connected to one end of the housing.
[0006] Preferably, the function buttons include a power button for controlling the LED light string's on / off state and brightness adjustment, and a timer button for setting the automatic off time of the LED light string.
[0007] Preferably, the status indicator includes multiple timing indicator lights for displaying timing status, and power indicator lights for displaying the remaining battery power in segments.
[0008] Preferably, the control panel is electrically connected to the circuit board via a ribbon cable or wire.
[0009] Preferably, both the charging interface and the discharging interface are Type-C interfaces.
[0010] Preferably, the housing includes an upper housing and a lower housing that are interlocked, the battery is disposed in the lower housing, and the circuit board is disposed above the battery via a hot-melt column in the lower housing.
[0011] Preferably, the discharge interface is located at the front end of the lower housing, and the charging interface is located on the upper housing.
[0012] Preferably, a protective tube is provided on the lower housing at the discharge interface, and a protective cover is detachably connected to the protective tube; a charging port groove is provided on the upper housing at the charging interface, the charging interface is disposed in the charging port groove, and a protective cover is detachably connected to the opening of the charging port groove.
[0013] Preferably, the hook is rotatably connected to the rear end face of the housing; the rear end face of the housing is provided with a storage groove that matches the hook, and the hook can be rotated into the storage groove for storage.
[0014] Preferably, the storage groove is provided with an elastic squeezing member, which is used to squeeze and limit the hook after the hook rotates into the storage groove.
[0015] The rechargeable LED string controller provided by this utility model integrates LED string dimming and timing, battery power display, and power bank functions into one unit through a set battery and a circuit board with a specific hardware structure. It has a compact structure and practical functions. The LED string dimming function can meet the needs of different scenarios. The timing function is worry-free and energy-saving when used. The power and status indicators are clear and intuitive. At the same time, the housing is rotatably connected with a hook, which can facilitate the carrying and hanging of the controller. Attached Figure Description
[0016] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings.
[0017] Figure 1 A three-dimensional structural schematic diagram of a rechargeable LED string controller according to an embodiment of the present invention is shown.
[0018] Figure 2 A three-dimensional structural diagram of a rechargeable LED string controller according to an embodiment of the present invention is shown with a protective cover and a protective cap installed.
[0019] Figure 3 A schematic diagram of the internal structure of a rechargeable LED string controller according to an embodiment of the present invention is shown.
[0020] Figure 4A schematic diagram of the hook and storage slot in a rechargeable LED string controller according to an embodiment of the present invention is shown.
[0021] Figure 5 A schematic diagram of the hook in the open state of a rechargeable LED string controller according to an embodiment of the present invention is shown.
[0022] Figure 6 A three-dimensional structural schematic diagram of a rechargeable LED string controller according to another embodiment of the present invention is shown.
[0023] In the diagram: 1. Housing; 11. Upper housing; 111. Charging port recess; 12. Lower housing; 121. Protective tube; 101. Storage slot; 102. Elastic extrusion piece; 2. Battery; 3. Circuit board; 4. Control panel; 41. Power button; 42. Timer button; 43. Power indicator light; 44. Timer indicator light; 5. Discharge interface; 6. Charging interface; 7. Hook; 71. Paddle; 8. Protective cover; 9. Protective cap. Detailed Implementation
[0024] Various embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. In the various drawings, the same elements are indicated by the same or similar reference numerals. For clarity, the various parts in the drawings are not drawn to scale.
[0025] This utility model provides a rechargeable LED string controller, see [link]. Figure 1 and Figure 3 The rechargeable LED string controller includes: a housing 1, a battery 2 and a circuit board 3 disposed within the housing 1, and a control panel 4 disposed on the housing 1; wherein, the control panel 4 is provided with function buttons and status indicator lights; the housing 1 is provided with a charging interface 6 and a discharging interface 5; the circuit board 3 integrates a microcontroller, a pulse width modulation dimming circuit, a timing control circuit, a power detection circuit, and a status indication circuit; the circuit board 3 is electrically connected to the control panel 4 and the battery 2; a hook 7 is also rotatably connected to one end of the housing 1.
[0026] The housing 1 includes an upper housing 11 and a lower housing 12 that interlock. The battery 2 is disposed in the lower housing 12, and the circuit board 3 is disposed above the battery 2 via a hot-melt column in the lower housing 12. The battery 2 may be a lithium battery. The discharge interface 5 is disposed at the front end of the lower housing 12, and the charging interface 6 is disposed on the upper housing 11. A charging indicator light is also provided on one side of the charging interface 6. Matching docking slots and docking platforms are respectively provided on the mating surfaces of the upper housing 11 and the lower housing 12 to facilitate quick and accurate positioning and docking when the upper housing 11 and the lower housing 12 are connected. The upper housing 11 and the lower housing 12 can be bonded together with ultraviolet curable adhesive, which also serves as a seal.
[0027] See Figure 1 and Figure 2 The lower housing 12 has a protective tube 121 located at the discharge interface 5, and a protective cover 8 is detachably connected to the protective tube 121. The upper housing 11 has a charging port groove 111 located at the charging interface 6, and the charging interface 6 is located in the charging port groove 111. A protective cover 9 is detachably connected to the opening of the charging port groove 111. Specifically, the protective cover 8 and the protective cover 9 can be made of silicone rubber, which can produce elastic deformation. After installation, they can achieve a seal at the connection surface through elastic compression, thereby realizing the waterproof function of the controller. One end of the outer surface of the protective cover 9 is provided with a pull strip to facilitate pulling out the protective cover 9 embedded in the charging port groove 111. Alternatively, the protective cover 8 can also be made of PE material. The protective tube 121 has external threads, and the inner side of the protective cover 8 has internal threads that match the external threads on the protective tube 121. The protective cover 8 is connected to the protective tube 121 by screwing. Figure 6 The diagram shown is a structural schematic of another embodiment of the present invention. In this embodiment, the lower housing 12 has a planar structure at the discharge interface 5, without a protective tube, and the discharge interface 5 is directly exposed.
[0028] The control panel 4 includes a power button 41 for controlling the LED string's on / off state and brightness adjustment, and a timer button 42 for setting the automatic off time of the LED string. Specifically, the control panel 4 is electrically connected to the circuit board 3 via a ribbon cable or wire. The power button 41 and the timer button 42 can be touch switches. The status indicator lights include multiple timer indicator lights 44 for displaying the timer status, and a battery indicator light 43 for displaying the remaining battery power in segments. Figure 1 As shown, five timer indicator lights 44 are located on the control panel 4 near the front end of the housing 1, with the timer duration printed next to them: “1h”, “2h”, “3h”, “4h”, and “5h”; the power indicator lights 43 are fan-shaped and include multiple fan-shaped or fan-ring-shaped indicator lights.
[0029] Both the charging interface 6 and the discharging interface 5 are Type-C interfaces. The LED light string can be connected to the charging interface 6 via a Type-C plug. By setting the charging interface 6 and the discharging interface 5 to Type-C interfaces, the battery 2 can be charged conveniently. At the same time, the LED light string can be powered through the Type-C discharging interface 5, and other external devices can be charged, thus using it as a power bank.
[0030] In circuit board 3, the microcontroller serves as the control core, responsible for signal processing and coordination of various circuit units. The input of the pulse width modulation (PWM) dimming circuit is connected to the microcontroller, and its output is connected to the discharge interface 5. The PWM dimming circuit generates pulse signals with different duty cycles according to the microcontroller's instructions, controlling the average current of the LED string connected to the discharge port, thereby achieving high, medium, and low brightness adjustments. The timing control circuit works in conjunction with the microcontroller to generate a timing reference signal and perform a countdown operation. The sampling end of the power detection circuit is connected to the battery 2, and its output is connected to the microcontroller. This circuit collects the voltage signal of the battery 2 and converts it into a digital signal recognizable by the microcontroller for power calculation. The status indicator circuit, controlled by the microcontroller, drives the timing indicator 44, power indicator 43, and charging indicator to display the system status. The battery 2, power button 41, timing button 42, charging interface 6, discharge interface 5, and various status indicator lights are all electrically connected to circuit board 3, forming a complete hardware system. Specifically, the microcontroller can be an STM32F030 series chip as the control core. The pulse width modulation (PWM) dimming circuit can be constructed by combining the internal PWM unit of the microcontroller and an external LED constant current driver chip. The PWM pin of the microcontroller outputs a signal to the dimming pin of the LED constant current driver chip to control its output current. The timing control circuit can be constructed by the high-precision clock source and hardware timer / counter inside the microcontroller to provide a timing reference. The power detection circuit uses a voltage divider circuit composed of two high-precision resistors to sample the battery voltage and uses the built-in analog-to-digital converter of the microcontroller to convert the sampled voltage into a digital value. The status indication circuit can directly drive the LED indicator light through the microcontroller's I / O port or through a transistor / MOSFET. The circuit board 3 also has a charge / discharge management circuit responsible for the safe charging of the battery 2 and provides power to the outside through the discharge interface 5.
[0031] See Figure 4 and Figure 5The hook 7 has a pivot at its upper end, and is rotatably connected to the rear end face of the housing 1 via the pivot. A storage groove 101 matching the hook 7 is provided on the rear end face of the housing 1, allowing the hook 7 to rotate into the storage groove 101 for storage. By providing the storage groove 101 on the housing 1 for storing the hook 7, the hook 7 can rotate into the storage groove 101 when not in use, resulting in a neat and aesthetically pleasing appearance for the controller. Furthermore, an elastic compression member 102 is provided in the storage groove 101. The elastic compression member 102 is used to compress and limit the hook 7 after it rotates into the storage groove 101, preventing the hook 7 from coming out of the storage groove 101. Specifically, the elastic compression member 102 can be made of silicone rubber and bonded to the side wall of the storage groove 101 with an adhesive. In this embodiment, one elastic compression member 102 is provided; in other alternative embodiments, multiple elastic compression members 102 can be provided in the storage groove 101.
[0032] The lower end of the hook 7 is also provided with a lever 71. The lever 71 is located at the lower end of the hook 7 near the outer surface of the hook 7. Correspondingly, the lower part of the storage groove 101 is provided with a notch. When the hook 7 needs to be used, the lever 71 at the lower end of the hook 7 can be turned out of the storage groove 101 through the notch of the storage groove 101 to rotate the hook 7 out, and then the hook 7 can be hooked at the position where it needs to be hung.
[0033] In summary, the rechargeable LED string controller provided by this utility model integrates LED string dimming and timing, battery power display, and power bank functions into one compact and practical unit through a built-in battery and a circuit board with a specific hardware structure. The LED string dimming function can meet the needs of different scenarios; the timing function is worry-free and energy-saving; the power and status indicators are clear and intuitive; and the housing has a rotatable hook for easy carrying and hanging.
[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0035] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A rechargeable LED string controller, characterized in that, include: The enclosure, the battery and circuit board housed within the enclosure, and the control panel mounted on the enclosure; wherein, The control panel is equipped with function buttons and status indicator lights; The housing is provided with a charging interface and a discharging interface; The circuit board integrates a microcontroller, a pulse width modulation dimming circuit, a timing control circuit, a power detection circuit, and a status indication circuit; the circuit board is electrically connected to the control panel and the battery. A hook is also rotatably connected to one end of the housing.
2. The energy-storage LED string controller according to claim 1, characterized in that, The function buttons include a power button for controlling the LED light string's on / off state and brightness adjustment, and a timer button for setting the automatic off time of the LED light string.
3. The energy-storage LED string controller according to claim 2, characterized in that, The status indicator lights include multiple timing indicator lights for displaying the timing status, and power indicator lights for displaying the remaining battery power in segments.
4. The energy-storage LED string controller according to claim 1, characterized in that, The control panel is electrically connected to the circuit board via ribbon cables or wires.
5. The energy-storage LED string controller according to claim 1, characterized in that, Both the charging and discharging interfaces are Type-C interfaces.
6. The energy-storage LED string controller according to claim 1, characterized in that, The housing includes an upper housing and a lower housing that are interlocked. The battery is disposed in the lower housing, and the circuit board is disposed above the battery via a hot-melt column in the lower housing.
7. The energy-storage LED string controller according to claim 6, characterized in that, The discharge interface is located at the front end of the lower housing, and the charging interface is located on the upper housing.
8. The energy-storage LED string controller according to claim 7, characterized in that, A protective tube is provided on the lower housing at the discharge interface, and a protective cover is detachably connected to the protective tube; a charging port groove is provided on the upper housing at the charging interface, the charging interface is disposed in the charging port groove, and a protective cover is detachably connected to the opening of the charging port groove.
9. The energy-storage LED string controller according to claim 1, characterized in that, The hook is rotatably connected to the rear end face of the housing; the rear end face of the housing is provided with a storage groove that matches the hook, and the hook can be rotated into the storage groove for storage.
10. The energy-storing LED string controller according to claim 9, characterized in that, The storage slot is provided with an elastic squeezing member, which is used to squeeze and limit the hook after the hook rotates into the storage slot.
