Charging structure of intelligent door lock

By adopting a 9V square battery and waterproof ring design in the smart door lock, the convenience of emergency power supply and waterproofing issues are solved, achieving stable and reliable emergency power supply and waterproofing effect, thus improving the user experience and security of the smart door lock.

CN224264701UActive Publication Date: 2026-05-19SHENZHEN FENDA SMART HOME CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN FENDA SMART HOME CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing smart door locks rely on power banks for emergency power supply, which is inconvenient to use and poses a risk of short circuits due to water ingress, lacking an effective waterproof design.

Method used

It uses a 9V square battery for emergency power supply, and achieves a waterproof structure through the combination design of conductive posts, shell, waterproof ring and screws, ensuring that the battery is connected to the circuit board while preventing moisture from entering.

Benefits of technology

It enables emergency power supply for smart door locks, avoiding inconvenience caused by insufficient power banks, and its waterproof design prevents short circuits, thus improving product reliability and market prospects.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of intelligent door locks, in particular to a charging structure of an intelligent door lock, which comprises a middle frame main body, a charging head and a waterproof ring, a circuit board is fixedly mounted in the middle frame main body, a mounting seat is formed on the lower end surface of the middle frame main body, and a first mounting hole is formed at the rear end of the mounting seat; the charging head comprises a shell and a conductive column, the conductive column and the shell are integrally injection-molded, and the conductive column is connected with the circuit board through a wire; an annular groove is formed in the rear end face of the shell, and a first threaded hole is formed in the rear end of the shell. The waterproof ring is stably installed in the annular groove, the charging head is installed in the installation base and presses the waterproof ring, and the first screw penetrates through the first installation hole and is connected with the first threaded hole in a fastened mode. The conductive column can be adaptively connected with the 9V square battery, so that emergency power supply of the intelligent door lock can be realized; and a waterproof ring is arranged for water prevention, so that short circuit caused by water inflow is prevented, and the market prospect is good.
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Description

Technical Field

[0001] This utility model belongs to the field of smart door lock technology, and in particular relates to a charging structure for a smart door lock. Background Technology

[0002] With the advancement of science and technology, people's demand for smart technology is increasing, giving rise to a series of smart home products to help people live more conveniently. As an important component of modern home security, smart door locks not only provide convenient usage methods, such as fingerprint unlocking and facial recognition unlocking, but also bring a high-end intelligent experience and thoughtful security functions, such as visual doorbells and door lock alarms.

[0003] Existing smart door locks usually have emergency power supply functions, and most of these emergency power supply methods involve temporarily supplying power by connecting a power bank to the USB charging port of the smart door lock. This method requires carrying a power bank at all times, and may fail in case of emergencies due to the lack of a power bank. In addition, the power supply port is not waterproof, which can easily lead to water ingress and short circuits.

[0004] Therefore, this utility model addresses the aforementioned technical problems by providing a charging structure for a smart door lock, which uses a 9V block battery for emergency power supply and optimizes the power supply structure for waterproofing, thereby solving one or more of the aforementioned problems. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides a charging structure for a smart door lock, comprising:

[0006] The middle frame body has a circuit board fastened inside it, and a mounting base is formed on the lower end face of the middle frame body. A first mounting hole is provided at the rear end of the mounting base.

[0007] A charging head, comprising a housing and conductive posts, wherein the conductive posts are integrally injection molded with the housing, and the conductive posts are connected to the circuit board via wires;

[0008] The rear end face of the outer casing is provided with an annular groove, and the rear end of the outer casing is provided with a first threaded hole;

[0009] A waterproof ring is stably installed within the annular groove.

[0010] The charging head is installed in the mounting base and presses against the waterproof ring. The first screw passes through the first mounting hole and is fastened to the first threaded hole.

[0011] Optionally, in some technical solutions, the outer shell is a plastic shell, the conductive post is a metal conductive post, and the conductive post and the outer shell are integrally molded using a die-casting process.

[0012] Optionally, in some technical solutions, the rear end of the conductive post is provided with a second threaded hole, the wire is configured with a conductive clamp, one end of the conductive clamp clamps the wire assembly, the other end of the conductive clamp is provided with a second mounting hole, and a second screw passes through the second mounting hole and is fastened to the second threaded hole.

[0013] Optionally, in some technical solutions, a partition is provided at the rear end of the housing, the partition extending outward along the rear end of the housing, the partition separating the two conductive clamps.

[0014] Optionally, in some technical solutions, the rear end of the housing is provided with two baffles, and the baffles are inclinedly disposed between the two baffles.

[0015] Optionally, in some technical solutions, the rear end of the conductive post is provided with a snap-fit ​​groove, and two fitting holes are formed on the two conductive posts respectively during the injection molding of the housing. During the injection molding of the housing, a protruding ring is formed on the snap-fit ​​groove, and the protruding ring is formed inside the fitting hole.

[0016] Optionally, in some technical solutions, the mounting base is formed as a countersunk hole, the mounting base has a first plane, and the end face of the waterproof ring is close to the first plane.

[0017] Alternatively, in some technical solutions, the front end of the housing is recessed inward to form a groove, which allows the battery to be inserted and connected to the conductive post.

[0018] Optionally, in some technical solutions, the waterproof ring is a silicone waterproof ring, and the cross-section of the waterproof ring is rectangular, circular, or trapezoidal.

[0019] Optionally, in some technical solutions, the rear end of the mounting base extends into the inner side of the middle frame body with a flange, and the first mounting hole is disposed on the flange.

[0020] The technical solution of this utility model has the following advantages or beneficial effects:

[0021] The charging structure of the smart door lock provided by this utility model includes a middle frame body, a charging head, and a waterproof ring. A circuit board is securely installed inside the middle frame body. A mounting base is formed on the lower end face of the middle frame body, and a first mounting hole is provided at the rear end of the mounting base. The charging head includes a shell and a conductive post. The conductive post and the shell are integrally injection molded, and the conductive post is connected to the circuit board via a wire. An annular groove is provided on the rear end face of the shell, and a first threaded hole is provided at the rear end of the shell. The waterproof ring is stably installed in the annular groove. The charging head is installed in the mounting base and presses against the waterproof ring. A first screw passes through the first mounting hole and is securely connected to the first threaded hole. The conductive post can be adapted to connect to a 9V square battery, thereby enabling emergency power supply for the smart door lock. Furthermore, the waterproof ring prevents water ingress and short circuits, demonstrating good market prospects. Attached Figure Description

[0022] Embodiments of the present invention will be described more fully with reference to the accompanying drawings. However, the accompanying drawings are for illustration and explanation only and do not constitute a limitation on the scope of the present invention.

[0023] Figure 1 An exploded view of the charging structure of the smart door lock of this utility model;

[0024] Figure 2 This is a partial cross-sectional schematic diagram of the charging structure of the smart door lock of this utility model;

[0025] Figure 3 This is a three-dimensional schematic diagram of the charging head of this utility model;

[0026] Figure 4 This is an exploded view of the charging head of this utility model;

[0027] Figure 5 This is a three-dimensional schematic diagram of the main body of the middle frame of this utility model;

[0028] Figure 6 This is a three-dimensional schematic diagram of the outer shell of this utility model;

[0029] Figure 7 This is another perspective view of the outer shell of this utility model.

[0030] Illustration:

[0031] 1. Main frame; 2. Charging head; 3. Waterproof ring; 4. Circuit board; 5. Mounting base; 6. First mounting hole; 7. Outer shell; 8. Conductive post; 9. Annular groove; 10. First threaded hole; 11. First screw; 12. First flat surface; 13. Flange; 14. Second threaded hole; 15. Conductive wire clamp; 16. Second mounting hole; 17. Wire clamping part; 18. Second screw; 19. Partition plate; 20. Baffle plate; 21. Mounting groove; 22. Clip groove; 23. Sleeve hole; 24. Raised ring; 25. Groove; 26. Touch panel; 27. Wire; 28. Emergency battery. Detailed Implementation

[0032] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many other different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0033] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0034] In the description of this utility model, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] In the description of this utility model, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0036] like Figure 1-7As shown, this utility model provides a charging structure for a smart door lock, including a middle frame body 1, a charging head 2, and a waterproof ring 3. A circuit board 4 is securely installed inside the middle frame body 1. A mounting base 5 is formed on the lower end face of the middle frame body 1, and a first mounting hole 6 is provided at the rear end of the mounting base 5. The charging head 2 includes a shell 7 and a conductive post 8. The conductive post 8 and the shell 7 are integrally injection molded. The conductive post 8 is connected to the circuit board 4 through a wire 27. An annular groove 9 is provided on the rear end face of the shell 7, and a first threaded hole 10 is provided at the rear end of the shell 7. The waterproof ring 3 is stably installed in the annular groove 9. The charging head 2 is installed in the mounting base 5 and presses the waterproof ring 3. A first screw 11 passes through the first mounting hole 6 and is securely connected to the first threaded hole 10. The conductive post 8 can be adapted to be connected to a 9V square emergency battery 28, thereby realizing emergency power supply for the smart door lock. Moreover, the waterproof ring 3 is used to prevent water ingress and short circuits, which has good market prospects.

[0037] Specifically, in this embodiment, the middle frame body 1 is a shell structure with an internal receiving space and mounting posts. The circuit board 4 is securely installed inside the middle frame body 1. The circuit board 4 is used to control the lock cylinder component of the smart door lock to perform the opening and closing actions. A touch panel 26 is configured on the front of the middle frame body 1. The middle frame body 1 can be securely installed on the door panel through the mounting posts. To accommodate the secure installation of the charging head 2, a mounting base 5 is provided on the lower end face of the middle frame body 1. The mounting base 5 is located on the lower end face of the middle frame body 1 so that the user will not directly see the charging structure when using the smart door lock, which can improve the aesthetics of the door lock. The charging head 2 is a die-cast part, which includes a shell 7 and conductive posts 8. There are two conductive posts 8, corresponding to the positive and negative terminals of the power supply. The shell 7 is a plastic shell, and the conductive posts 8 are metal conductive posts. The conductive posts 8 and the shell 7 are integrally injection molded using a die-casting process. The conductive posts 8 are equipped with wires 27 connected to the circuit board 4, so that when the external emergency power supply is connected to the conductive posts 8, the circuit board 4 is powered and can perform the opening and closing actions of the smart door lock. The rear end face of the outer casing 7 forms an annular groove 9, which is used to assemble the waterproof ring 3. The waterproof ring 3 is in close contact with the mounting base 5, thereby enabling the charging structure to be waterproof.

[0038] Furthermore, in this embodiment, the waterproof ring 3 is a silicone waterproof ring 3 with a rectangular cross-section. To facilitate the fastening installation of the charging head 2, a first mounting hole 6 is provided at the rear end of the mounting base 5, and a first threaded hole 10 is provided at the rear end of the outer shell 7. The mounting base 5 has a countersunk hole structure, and its bottom surface is formed as a first flat surface 12. After the waterproof ring 3 is embedded in the annular groove 9, the charging head 2 is pressed into the mounting base 5. The waterproof ring 3 is in close contact with the first flat surface 12 of the mounting base 5. Then, a first screw 11 is passed through the first mounting hole 6 and fastened to the first threaded hole 10, thereby completing the assembly of the charging head 2. Since the charging head 2 is manufactured using a die-casting process, moisture cannot enter the interior of the middle frame body 1 from the charging head 2 body. At the same time, since the joint between the charging head 2 and the mounting base 5 is waterproofed by the waterproof ring 3, moisture cannot enter the interior of the middle frame body 1 from the first flat surface 12, giving the charging structure a good waterproof effect. Preferably, the rear end of the mounting base 5 extends into the inner side of the middle frame body 1 with a flange 13, and the first mounting hole 6 is provided on the flange 13, which can effectively reduce the manufacturing material of the middle frame body 1, thereby reducing manufacturing costs. It should be noted that in some embodiments, the waterproof ring 3 can also be set as an O-ring or a trapezoidal ring, that is, the cross-section of the waterproof ring 3 is circular or trapezoidal.

[0039] Furthermore, in this embodiment, to facilitate a secure connection between the conductive post 8 and the wire 27, a second threaded hole 14 is provided at the rear end of the conductive post 8. The wire 27 is equipped with a conductive clamp 15. One end of the conductive clamp 15 clamps the wire 27 for assembly, and the other end of the conductive clamp 15 is provided with a second mounting hole 16. A second screw 18 passes through the second mounting hole 16 and is fastened to the second threaded hole 14. Specifically, the conductive post 8 is preferably made of copper. A second screw hole is provided on the rear end face of the conductive post 8, and the outer diameter of the front end of the conductive post 8 is larger than that of the rear end. The conductive clamp 15 is also made of copper plate by stamping. The front end of the conductive clamp 15 is formed with the second mounting hole 16, and the rear end of the conductive clamp 15 is formed as a wire clamping part 17. The wire clamping part 17 clamps and conducts electricity to the wire 27. The second screw 18 passes through the second mounting hole 16 and is fastened to the second threaded hole 14, thereby securing the conductive clamp 15 to the rear end of the housing 7. Using the conductive clamp 15 to connect the conductive post 8 facilitates the installation and removal of the wire 27.

[0040] Furthermore, in this embodiment, a partition 19 is provided at the rear end of the outer casing 7. The partition 19 extends outward along the rear end of the outer casing 7 and isolates the two conductive wire clips 15. Two baffles 20 are provided at the rear end of the outer casing 7, and the partition 19 is inclinedly disposed between the two baffles 20. Specifically, in order to isolate the two conductive wire clips 15 and prevent short circuits, a partition 19 is provided at the rear end of the outer casing 7 to isolate the two conductive wire clips 15, and two baffles 20 are provided at the rear end of the outer casing 7 to isolate the two conductive wire clips 15 from the middle frame body 1. The partition 19 is located between the two baffles 20 and is arranged at an angle, thereby forming two mounting grooves 21 that are wider at one end and narrower at the other. When installing the conductive wire clamp 15, the front end of the conductive wire clamp 15 has a second mounting hole 16 with a large lateral spacing. The front end of the conductive wire clamp 15 is arranged at the wider end of the mounting groove 21, and the rear end of the conductive wire clamp 15 is arranged at the narrower end of the mounting groove 21. This makes it convenient for the second mounting hole 16 of the conductive wire clamp 15 to be tightly connected to the conductive post 8. It also makes it convenient for the narrow end of the mounting groove 21 to clamp the wire clamping part 17 or the wire 27 of the conductive wire clamp 15.

[0041] Furthermore, in this embodiment, a snap-fit ​​groove 22 is provided at the rear end of the conductive post 8. During injection molding of the outer shell 7, two fitting holes 23 are formed on the two conductive posts 8 respectively. During injection molding of the outer shell 7, a protruding ring 24 is formed on the snap-fit ​​groove 22, and the protruding ring 24 is formed inside the fitting hole 23. Specifically, in order to make the conductive post 8 stably formed on the outer shell 7, an annular snap-fit ​​groove 22 is provided at the rear end of the conductive post 8. When the conductive post 8 is injection molded with the outer shell 7, a fitting hole 23 is formed on the outer shell 7, and a protruding ring 24 is formed on the snap-fit ​​groove 22. The protruding ring 24 is located inside the fitting hole 23. This results in a stable charging head 2 structure, ensures the service life of the charging structure, and improves the product quality of the smart door lock.

[0042] Furthermore, in this embodiment, the front end of the outer casing 7 is recessed inward to form a groove 25, which is used for battery insertion and connection to the conductive post 8. Specifically, in order to facilitate the external 9V block emergency battery 28 to provide emergency power to the smart door lock, the front end of the outer casing 7 is formed with an inwardly recessed groove 25 during injection molding. The size of the groove 25 is adapted to the two electrodes of the emergency battery 28, so that when connecting the emergency battery 28 to the conductive post 8, it is only necessary to directly fit the electrodes of the emergency battery 28 into the groove 25 and press them together to perform emergency unlocking.

[0043] When implementing the charging structure of the smart door lock of this utility model, if the lithium battery of the smart door lock is low on power, a 9V square emergency battery 28 pre-placed outside the door can be directly inserted into the charging head 2, thereby providing emergency power to the smart door lock and enabling unlocking. The charging structure of the smart door lock of this utility model not only achieves emergency power supply for the smart door lock by using an external battery, but also features a stable and reliable charging structure, simple installation, and broad market prospects.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A charging structure for a smart door lock, characterized in that, include: The middle frame body has a circuit board fastened inside it, and a mounting base is formed on the lower end face of the middle frame body. A first mounting hole is provided at the rear end of the mounting base. A charging head, comprising a housing and conductive posts, wherein the conductive posts are integrally injection molded with the housing, and the conductive posts are connected to the circuit board via wires; The rear end face of the outer casing is provided with an annular groove, and the rear end of the outer casing is provided with a first threaded hole; A waterproof ring is stably installed within the annular groove. The charging head is installed in the mounting base and presses against the waterproof ring. The first screw passes through the first mounting hole and is fastened to the first threaded hole.

2. The charging structure of the smart door lock as described in claim 1, characterized in that, The outer shell is a plastic shell, and the conductive post is a metal conductive post. The conductive post and the outer shell are integrally molded using a die-casting process.

3. The charging structure of the smart door lock as described in claim 1, characterized in that, The conductive post has a second threaded hole at its rear end, the wire is equipped with a conductive clamp, one end of the conductive clamp clamps the wire assembly, and the other end of the conductive clamp has a second mounting hole, through which a second screw passes and is fastened to the second threaded hole.

4. The charging structure of the smart door lock as described in claim 3, characterized in that, A partition is provided at the rear end of the housing, the partition extending outward along the rear end of the housing, the partition separating the two conductive wire clamps.

5. The charging structure of the smart door lock as described in claim 4, characterized in that, The rear end of the outer casing is provided with two baffles, and the baffles are inclinedly disposed between the two baffles.

6. The charging structure of the smart door lock as described in claim 2, characterized in that, The rear end of the conductive post is provided with a snap-fit ​​groove. During the injection molding of the outer shell, two fitting holes are formed on the two conductive posts respectively. During the injection molding of the outer shell, a convex ring is formed on the snap-fit ​​groove, and the convex ring is formed inside the fitting hole.

7. The charging structure of the smart door lock as described in claim 1, characterized in that, The mounting base is formed as a countersunk hole, the mounting base has a first plane, and the end face of the waterproof ring is close to the first plane.

8. The charging structure of the smart door lock as described in claim 1, characterized in that, The front end of the outer casing is recessed inward to form a groove, which allows the battery to be inserted and connected to the conductive post.

9. The charging structure of the smart door lock as described in claim 1, characterized in that, The waterproof ring is a silicone waterproof ring, and the cross-section of the waterproof ring is rectangular, circular, or trapezoidal.

10. The charging structure of the smart door lock as described in claim 1, characterized in that, The rear end of the mounting base extends into the inner side of the middle frame body with a flange, and the first mounting hole is provided on the flange.