Intelligent door lock with illumination self-adaptive power supply structure

By using a light-adaptive power supply structure, combined with the intelligent switching between solar panels and lithium batteries, the problem of cumbersome and environmentally unfriendly power supply methods in traditional smart door locks is solved, achieving a stable, convenient, and environmentally friendly power supply solution.

CN224078879UActive Publication Date: 2026-04-03珠海美德利智能科技有限公司
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Traditional smart door locks rely on dry cell batteries or rechargeable batteries for power, which leads to frequent replacements or cumbersome charging operations, affecting user experience and being environmentally unfriendly.

Method used

It adopts a light-adaptive power supply structure, combining solar panels and lithium batteries. The power supply is managed by a solar control PCB board, and it automatically switches to lithium battery power when there is insufficient sunlight. It is equipped with automatic cleaning and heat dissipation functions to ensure that the door lock works normally.

Benefits of technology

It enables the use of renewable energy, reduces operating costs and environmental pollution, reduces the number of times manual charging is required, ensures stable operation of the door lock, and improves user convenience and environmental friendliness.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224078879U_ABST
    Figure CN224078879U_ABST
Patent Text Reader

Abstract

The utility model discloses an intelligent door lock with an illumination self-adaptive power supply structure, which relates to the technical field of intelligent door locks and comprises a lock body, the lock body comprises an outer lock shell and an inner lock shell, a first solar panel is arranged on the surface of the outer lock shell and is connected with a solar control PCB (printed circuit board) in the lock body, and the solar control PCB is connected with the inner lock shell. Electric energy converted from solar energy can be supplied to the main control PCB after being managed and adjusted, the lithium battery is arranged in the inner lock shell, power is supplied to the door lock when light is insufficient, and the solar panel can charge the door lock when electricity is insufficient. In the aspect of power supply, solar energy and a lithium battery are combined, dependence on a traditional battery is reduced, cost and pollution are reduced, the power supply mode can be automatically switched, and normal operation of the door lock is guaranteed; an automatic cleaning function is achieved, the protection cover slides to clean the solar panel, and the power generation efficiency is prevented from being affected by accumulated dust; heat dissipation design and waterproof treatment are reasonable, stability of a power supply system is guaranteed, and reliability and service life of the door lock are improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of smart door lock technology, and in particular to a smart door lock with an adaptive power supply structure for illumination. Background Technology

[0002] In the field of smart door locks, traditional power supply methods mainly rely on dry cell batteries or rechargeable batteries. Dry cell battery power supply has the problem of frequent battery replacement, which not only increases the cost of use, but may also cause the door lock to malfunction when the battery is depleted, causing great inconvenience to users. Although rechargeable batteries can reduce the frequency of battery replacement, they still need to be charged regularly, and the door lock may not be usable during the charging process, affecting the user experience.

[0003] The current shortcomings in power supply of smart locks limit their further development; the frequent replacement or recharging of batteries is cumbersome and does not meet the modern user's pursuit of a convenient life; at the same time, discarded batteries will also pollute the environment, which violates the concept of sustainable development; and existing smart locks lack effective means to utilize renewable energy and cannot make full use of surrounding environmental resources to achieve self-powered operation, which has become a bottleneck in the development of smart lock technology. In view of this, we propose a smart lock with a light-adaptive power supply structure. Utility Model Content

[0004] The main objective of this invention is to provide an intelligent door lock with an adaptive power supply structure for illumination, which can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A smart door lock with a light-adaptive power supply structure includes a lock body, the lock body including an outer lock shell and an inner lock shell, and a first solar panel is provided at the lower end of the surface of the outer lock shell;

[0007] The outer periphery of the first solar panel is slidably connected to a protective cover. The outer wall of the protective cover and the surface of the outer lock shell are on the same vertical plane. The outer surface of the protective cover is fitted with a second solar panel. The lock body is fixedly installed with a solar control PCB board, a main control PCB board, a lithium battery and a rear main PCB board. The first solar panel and the second solar panel are both connected to the main control PCB board through the solar control PCB board. The lithium battery is connected to the main control PCB board through the rear main PCB board.

[0008] Two sliders are fixedly installed on the inner side of the top of the protective cover. Two parallel guide holes are provided on both sides of the outer lock shell. The two sliders slide through the two guide holes respectively. Two miniature electric telescopic rods are installed inside the outer lock shell. The push rods of the miniature electric telescopic rods are vertically downward, and the lower ends of the push rods of the two miniature electric telescopic rods are fixedly connected to the two sliders respectively. The cylinder of the miniature electric telescopic rod is fixedly connected to the outer lock shell. The miniature electric telescopic rod is electrically connected to the main control PCB board.

[0009] Preferably, the inner wall of the protective cover is provided with two vertical guide grooves on both sides, and two symmetrical cylinders are installed at the lower ends of both sides of the outer lock shell, with the ends of the two cylinders located in the two vertical guide grooves.

[0010] Preferably, the protective cover has densely arranged heat dissipation holes at its bottom, and a heat dissipation space is reserved between the back of the second solar panel and the outer side of the first solar panel.

[0011] Preferably, a fixing frame is fixedly installed at the lower end of the outer locking shell, and a first cleaning block is fixedly installed on the inner frame of the fixing frame, with the inner end face of the first cleaning block facing the outer end face of the second solar panel.

[0012] Preferably, a second cleaning block is fixedly installed on the inner side of the top of the protective cover.

[0013] Preferably, the outer surface of the outer lock shell is further provided with a password area and a first handle, and the outer surface of the inner lock shell is provided with a second handle.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Innovative power supply method: Utilizing solar panels for power supply realizes the use of renewable energy, reduces reliance on traditional batteries, and lowers operating costs and environmental pollution; at the same time, the combination of solar power supply and lithium battery power supply automatically switches when sunlight is insufficient, ensuring that the door lock always works normally, reducing the number of times manual charging is required, and providing great convenience to users.

[0016] 2. Automatic cleaning function: Through the up-and-down sliding of the protective cover and the setting of the cleaning block, the solar panel is automatically cleaned, which effectively solves the problem of dust accumulation on the surface of the solar panel affecting the power generation efficiency and ensures that the solar panel always maintains a good working condition.

[0017] 3. Reasonable heat dissipation design: The heat dissipation holes under the protective cover and the reserved heat dissipation space between the solar panel can dissipate the heat generated by the solar panel when it is working in a timely manner, avoiding the impact of excessive temperature on the power generation efficiency and service life of the solar panel, and ensuring the stability of the power supply system of the smart door lock. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model. Figure 2 ;

[0020] Figure 3 This is an exploded view of this utility model;

[0021] Figure 4 This is a partially enlarged view of the outer lock shell of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the protective cover in this utility model;

[0023] Figure 6 This is a structural schematic diagram of the fixed frame in this utility model.

[0024] In the diagram: 1. Lock body; 11. Outer lock shell; 12. Inner lock shell; 13. Cylindrical; 14. Guide hole; 15. Fixing frame; 16. First cleaning block; 2. First solar panel; 3. Protective cover; 31. Heat dissipation hole; 32. Vertical guide groove; 33. Slider; 34. Second cleaning block; 4. Second solar panel; 5. Miniature electric telescopic rod; 6. Solar control PCB board; 7. Main control PCB board; 8. Lithium battery; 9. Rear main PCB board. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figures 1-6 As shown, a smart door lock with a light-adaptive power supply structure includes a lock body 1, which includes an outer lock shell 11 and an inner lock shell 12. A first solar panel 2 is provided at the lower end of the surface of the outer lock shell 11. A protective cover 3 is slidably connected to the periphery of the first solar panel 2. The outer wall of the protective cover 3 is on the same vertical plane as the surface of the outer lock shell 11. A second solar panel 4 is fitted and installed on the outer surface of the protective cover 3. A solar control PCB board 6, a main control PCB board 7, a lithium battery 8, and a rear main PCB board 9 are fixedly installed inside the lock body 1. The first solar panel 2 and the second solar panel 4 are both connected to the main control PCB board 7 through the solar control PCB board 6. The lithium battery 8 is connected to the main control PCB board 7 through the rear main PCB board 9.

[0027] refer to Figure 3 , Figure 4 and Figure 5Two sliders 33 are fixedly installed on the inner side of the top of the protective cover 3. Two parallel guide holes 14 are provided on both sides of the outer lock shell 11. The two sliders 33 slide through the two guide holes 14 respectively. Two mini electric telescopic rods 5 are installed inside the outer lock shell 11. The push rods of the mini electric telescopic rods 5 are vertically downward, and the lower ends of the push rods of the two mini electric telescopic rods 5 are fixedly connected to the two sliders 33 respectively. The cylinder of the mini electric telescopic rod 5 is fixedly connected to the outer lock shell 11. The mini electric telescopic rod 5 is electrically connected to the main control PCB board 7.

[0028] refer to Figure 5 The inner wall of the protective cover 3 has two vertical guide grooves 32 on both sides. The lower ends of the outer lock shell 11 are equipped with two symmetrical cylinders 13. The ends of the two cylinders 13 are set in the two vertical guide grooves 32. This structural design makes the protective cover 3 more stable during the up and down sliding process and less prone to shaking, ensuring that its protection and cleaning functions for the solar panel can be effectively realized. The bottom of the protective cover 3 is provided with densely arranged heat dissipation holes 31. A heat dissipation space is reserved between the back of the second solar panel 4 and the outer side of the first solar panel 2. This design can dissipate the heat generated by the solar panel when it is working in time, avoid the impact of excessive temperature on the power generation efficiency and service life of the solar panel, and ensure the stability of the power supply system of the smart door lock.

[0029] refer to Figure 5 and Figure 6 A fixed frame 15 is fixedly installed at the lower end of the outer lock shell 11. A first cleaning block 16 is fixedly installed on the inner frame of the fixed frame 15. The inner end face of the first cleaning block 16 is opposite to the outer end face of the second solar panel 4. At the same time, a second cleaning block 34 is fixedly installed on the inner side of the top of the protective cover 3. When the protective cover 3 moves up and down, the inner end face of the second cleaning block 34 can wipe and clean the outer end face of the first solar panel 2. When the protective cover 3 moves up and down, the outer end face of the transparent glass protective layer on the second solar panel 4 rubs against the inner end face of the first cleaning block 16, realizing automated cleaning of the outer end face of the transparent glass protective layer. This effectively solves the problem of dust accumulation on the surface of the solar panel affecting the power generation efficiency and ensures that the solar panel always maintains a good working condition.

[0030] In this embodiment, a password area and a first handle are provided on the outer surface of the outer lock shell 11, and a second handle is provided on the outer surface of the inner lock shell 12. The inner lock shell 12 is provided with a handle and a deadbolt knob. The lithium battery 8 and the rear main PCB board 9 are located behind the glass panel of the inner lock shell 12. This layout design is convenient for users to operate, conforms to ergonomic principles, and improves the convenience of using the smart door lock. In daily use, users can enter a password to unlock the door through the password area on the outer lock shell 11, hold the first handle to open the door, hold the second handle on the inner lock shell 12 to open the door, and use the deadbolt knob to lock the door.

[0031] In addition, all electronic components inside the outer lock shell 11 and inner lock shell 12 are treated with a nano-coating process for waterproofing. A waterproof IP67-rated USB interface is used with a silicone ring added to the USB port for waterproofing. Waterproof glue is applied to the bottom and perimeter of the glass panel and solar panel. These waterproof measures can effectively prevent moisture from entering the interior of the lock body 1, avoid damage to electronic components due to moisture, improve the reliability and service life of the smart door lock, and enable it to adapt to various complex usage environments.

[0032] It should be added that the outer end face of the second solar panel 4 is coated with a transparent glass protective layer. The light transmittance of this transparent glass protective layer is not less than 90% in the visible light range, and it has anti-ultraviolet and wear-resistant properties. The high light transmittance ensures that the solar panel can fully receive sunlight, while the anti-ultraviolet and wear-resistant properties effectively protect the solar panel and extend its service life.

[0033] Furthermore, the miniature electric telescopic rod 5 is electrically connected to the main control PCB board 7. The main control PCB board 7 can control the extension and retraction of the push rod of the miniature electric telescopic rod 5 according to a preset time or a received command, thereby causing the protective cover 3 to slide up and down. For example, it can be set to start the miniature electric telescopic rod 5 at a set time every day, so that the protective cover 3 slides up and down once to clean the solar panel; it can also remotely send commands through a mobile APP to control the movement of the protective cover 3, so as to meet different user needs.

[0034] The inner lock housing 12 houses a lithium battery 8 and a rear main PCB board 9. When sunlight is insufficient, the rear main PCB board 9 controls the lithium battery 8 to power the main control PCB board 7. When the lithium battery 8 is low on power, the solar control PCB board 6 controls the first solar panel 2 and the second solar panel 4 to charge the lithium battery 8. A USB port with a silicone ring is located on one side of the inner lock housing 12, allowing for rapid charging of the lithium battery 8. This power supply method enables intelligent switching between solar power and lithium battery 8 power, ensuring the smart lock functions normally under various conditions, reducing the frequency of manual charging, and improving user convenience.

[0035] It should be noted that a lubricating layer is provided between the vertical guide groove 32 and the cylinder 13, and between the slider 33 and the guide hole 14, to reduce sliding friction. This not only makes the sliding of the protective cover 3 smoother, but also reduces wear between components, further improving the stability and service life of the smart door lock.

[0036] When installing the smart door lock with a light-adaptive power supply structure, install the lock body 1 on the door, ensuring that the outer lock shell 11 and the inner lock shell 12 are firmly installed. Connect the lines between the first solar panel 2, the second solar panel 4 and the solar control PCB board 6 and the main control PCB board 7, as well as the lines between the lithium battery 8 and the rear main PCB board 9 and the main control PCB board 7. Install the miniature electric telescopic rod 5 inside the outer lock shell 11 and connect it to the circuit of the main control PCB board 7.

[0037] During the use of this smart door lock with a light-adaptive power supply structure, when there is sunlight, the first solar panel 2 and the second solar panel 4 convert solar energy into electrical energy. After being managed and regulated by the solar control PCB board 6, the electrical energy is supplied to the main control PCB board 7 to provide power for the normal operation of the smart door lock. At the same time, the solar control PCB board 6 will control the first solar panel 2 and the second solar panel 4 to charge the lithium battery 8 according to the power status of the lithium battery 8.

[0038] When there is insufficient sunlight, the rear main PCB board 9 detects insufficient solar power supply and automatically controls the lithium battery 8 to power the main control PCB board 7 to ensure that the door lock continues to work normally. If the lithium battery 8 is low on power, it can be charged by the first solar panel 2 and the second solar panel 4, or it can be quickly charged through the USB interface with a silicone ring on one side of the inner lock shell 12.

[0039] The main control PCB board 7 controls the extension and retraction of the push rod of the micro electric telescopic rod 5 according to the preset time or the received instruction. When the push rod extends, it pushes the slider 33 to slide in the guide hole 14, causing the protective cover 3 to move downward. At this time, the second cleaning block 34 wipes and cleans the outer end face of the first solar panel 2. When the push rod retracts, the protective cover 3 moves upward, and the first cleaning block 16 cleans the outer end face of the transparent glass protective layer on the second solar panel 4.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A smart door lock with an adaptive power supply structure for illumination, comprising a lock body (1), wherein the lock body (1) comprises an outer lock shell (11) and an inner lock shell (12), characterized in that: The lower end of the surface of the outer lock shell (11) is provided with a first solar panel (2); A protective cover (3) is slidably connected to the outer periphery of the first solar panel (2). The outer wall of the protective cover (3) and the surface of the outer lock shell (11) are on the same vertical plane. A second solar panel (4) is fitted onto the outer surface of the protective cover (3). A solar control PCB board (6), a main control PCB board (7), a lithium battery (8) and a rear main PCB board (9) are fixedly installed inside the lock body (1). The first solar panel (2) and the second solar panel (4) are both connected to the main control PCB board (7) through the solar control PCB board (6). The lithium battery (8) is connected to the main control PCB board (7) through the rear main PCB board (9). Two sliders (33) are fixedly installed on the inner side of the top of the protective cover (3). Two parallel guide holes (14) are provided on both sides of the outer lock shell (11). The two sliders (33) slide through the two guide holes (14) respectively. Two miniature electric telescopic rods (5) are installed inside the outer lock shell (11). The push rod of the miniature electric telescopic rod (5) is vertically downward, and the lower end of the push rod of the two miniature electric telescopic rods (5) is fixedly connected to the two sliders (33) respectively. The cylinder of the miniature electric telescopic rod (5) is fixedly connected to the outer lock shell (11). The miniature electric telescopic rod (5) is electrically connected to the main control PCB board (7).

2. The smart door lock with an adaptive power supply structure for illumination as described in claim 1, characterized in that: The inner wall of the protective cover (3) is provided with two vertical guide grooves (32) on both sides. The lower ends of the outer lock shell (11) are provided with two symmetrical cylinders (13), and the ends of the two cylinders (13) are located in the two vertical guide grooves (32).

3. The smart door lock with an adaptive power supply structure based on illumination according to claim 1, characterized in that: The protective cover (3) has densely arranged heat dissipation holes (31) below it, and a heat dissipation space is reserved between the back of the second solar panel (4) and the outer side of the first solar panel (2).

4. The smart door lock with an adaptive power supply structure for illumination as described in claim 1, characterized in that: A fixing frame (15) is fixedly installed at the lower end of the outer lock shell (11), and a first cleaning block (16) is fixedly installed in the inner frame of the fixing frame (15). The inner end face of the first cleaning block (16) is opposite to the outer end face of the second solar panel (4).

5. The smart door lock with an adaptive power supply structure for illumination as described in claim 1, characterized in that: A second cleaning block (34) is fixedly installed on the inner side of the top of the protective cover (3).

6. The smart door lock with an adaptive power supply structure based on illumination according to claim 1, characterized in that: The outer surface of the outer lock shell (11) is also provided with a password area and a first handle, and the outer surface of the inner lock shell (12) is provided with a second handle.