Intelligent door lock with scalable power supply

Abstract

The application relates to the technical field of door locks, and particularly discloses an intelligent door lock with an extensible power supply, which comprises an outer lock and an inner lock, an external power supply board is arranged between the inner lock and the outer lock, a main power supply is arranged in the inner lock, the external power supply board comprises a cover plate, a shell fixedly connected with the cover plate, a battery plate arranged in the shell, and a circuit board for controlling current transmission, the circuit board is connected with a transmission line used for detachable connection with the inner lock, a battery compartment for placing the battery plate, a connecting compartment for placing the circuit board and a lock body area are arranged in the shell, and the cover plate and the shell are both provided with a gap hole through which the electric wire of the outer lock passes. The intelligent door lock with the extensible power supply has the effect of prolonging the endurance time.

Description

Technical Field

[0001] This application relates to the field of door lock technology, and in particular to a smart door lock with a scalable power supply. 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. Smart door locks, as an important component of modern furniture security, are widely used because they offer greater convenience and security than traditional mechanical locks.

[0003] Existing smart locks generally consist of an inner lock and an outer lock, with the battery built into the inner lock housing, supplying power to the electronic modules of both the inner and outer locks simultaneously via internal circuitry. However, due to the limited space within the inner lock housing, the number and capacity of batteries that can be accommodated are strictly limited. As the functions of smart locks gradually increase, the battery life of the locks gradually decreases. When users return from business trips or vacations of several months, the locks are prone to becoming unusable due to natural discharge. Utility Model Content

[0004] To improve battery life, this application provides a smart door lock with a scalable power supply.

[0005] The smart door lock with a scalable power supply provided in this application adopts the following technical solution: A smart door lock with expandable power supply includes an outer lock and an inner lock. An external power board is provided between the inner lock and the outer lock. The inner lock has a main power supply inside. The external power board includes a cover plate, a housing fixedly connected to the cover plate, a battery board disposed inside the housing, and a circuit board for controlling current transmission. The circuit board is connected to a transmission line for detachable connection with the inner lock. The housing has a battery compartment for placing the battery board, a connection compartment for placing the circuit board, and a lock body area. Both the cover plate and the housing have clearance holes for the wires of the outer lock to pass through.

[0006] By adopting the above technical solution, the external power board can effectively increase the total battery capacity, thereby improving the battery life of the smart lock. The clearance hole ensures that the external power board does not obstruct the connection between the internal functional modules of the outer lock and the inner lock, thus guaranteeing its proper function. Since the external power board is independently positioned between the inner and outer locks, even if the main power supply fails, the external power board can continue to provide independent power, ensuring stable battery life for the smart lock. Furthermore, users can replace the external power board with one of different capacities as needed to meet their battery life requirements.

[0007] Optionally, the inner wall of the clearance hole is provided with a through hole that communicates with the connecting chamber.

[0008] By adopting the above technical solution, the transmission line inside the external power board can easily pass through the clearance hole, and is in the same space as the wire of the external lock and connected to the internal lock, making the line neater.

[0009] Optionally, the battery compartment and the connection compartment are arranged adjacent to each other.

[0010] By adopting the above technical solutions, the shortest possible line distance can be achieved between the solar panel and the internal circuit board, thereby optimizing the internal electrical connections and making the module structure more compact, reducing power loss and signal interference.

[0011] Optionally, a guide seat is fixedly connected to the side wall of the connecting compartment near the through hole. The guide seat has guide surfaces on both sides, and the guide surfaces are arc-shaped and extend towards the side near the through hole.

[0012] By adopting the above technical solution, the guide seat can effectively guide the transmission line through the through hole and connect with the inner lock, making the wire threading operation smoother and facilitating assembly. At the same time, the arc-shaped guide surface can smoothly guide the wire to the circuit connection, effectively preventing the wire from being cut, worn, or stuck by sharp edges during installation, thus protecting the insulation layer of the line.

[0013] Optionally, the inner lock has a wiring groove on the side near the external power board, and a wire hole is provided on the bottom wall of the wiring groove, with the wire hole located near the main power supply.

[0014] By adopting the above technical solution, the wiring duct constrains transmission lines and other cables to a fixed path, thereby preventing cables from moving haphazardly inside and avoiding interference or entanglement with components on the motherboard, thus improving electrical safety and internal cleanliness. The cable routing holes are located near the main power supply, allowing power from the external power supply board to be delivered to the main power supply via the shortest path.

[0015] Optionally, a mounting base is fixedly connected to the bottom wall of the housing, and the mounting base has a mounting hole, which is an oblong hole.

[0016] By adopting the above technical solution, the external power board can be installed more securely on the internal lock, thereby improving the stability of the installation. At the same time, the oblong hole allows the fasteners to move within the installation range, thereby compensating for the accumulated errors caused by the pre-embedded space in the door, the product itself, and the installation process, ensuring that the installation can be carried out smoothly.

[0017] Optionally, the inner wall of the connecting compartment is fixedly connected to a fixing post that passes through the circuit board, and the circuit board has a plug-in hole for insertion into the fixing post.

[0018] By adopting the above technical solution, compared with traditional screw fixing, snap-fit ​​can improve the assembly speed on the production line while meeting the installation strength requirements, thereby effectively reducing production costs. In addition, the snap-fit ​​design has anti-vibration characteristics, thereby improving the reliability of the connection.

[0019] Optionally, the fixing post has a fixing hole, and the inner lock has a docking hole on the side wall near the external power board, with the docking hole facing the fixing hole.

[0020] By adopting the above technical solution, the fastener can pass through the mating hole and be directly locked onto the fixing post, thereby achieving a secure connection between the internal lock and the external power board. Because the fixing post has a greater thickness, the connection strength is significantly improved, ensuring a stable connection between the two.

[0021] Optionally, indicator lights are provided through the side wall of the connecting compartment.

[0022] By adopting the above technical solution, the indicator light can be used to observe whether the external power board is connected normally, thereby determining whether the external power board is working properly.

[0023] In summary, this application has the following beneficial effects: 1. By setting up an external power board, the battery capacity can be increased, thus improving the battery life.

[0024] 2. The battery compartment and the connection compartment are set up adjacent to each other, so that the shortest line distance can be achieved between the battery panel and the internal circuit board, which facilitates the wiring layout. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a smart door lock with a scalable power supply according to an embodiment of this application; Figure 2 This is an exploded view of the external power supply board and the internal lock according to an embodiment of this application; Figure 3 This is a schematic diagram of the external power supply board according to an embodiment of this application; Figure 4 This is a schematic diagram of the shell structure according to an embodiment of this application; Figure 5 This is a schematic diagram of the structure of the inner lock back in an embodiment of this application.

[0026] Explanation of reference numerals in the attached diagram: 1. External lock; 2. Internal lock; 21. Main power supply; 22. Wiring channel; 221. Wire hole; 23. Connecting hole; 3. External power board; 31. Cover plate; 32. Housing; 321. Battery compartment; 322. Connection compartment; 323. Lock body area; 324. Fixing post; 3241. Fixing hole; 325. Indicator light; 33. Battery board; 34. Circuit board; 341. Transmission line; 342. Plug-in hole; 35. Clearance hole; 351. Through hole; 36. Guide seat; 361. Guide surface; 37. Mounting seat; 371. Mounting hole. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0028] This application discloses a smart door lock with a scalable power supply. (Refer to...) Figure 1 It includes an outer lock 1 and an inner lock 2. The inner lock 2 is equipped with a main power supply 21. The outer lock 1 is used to carry various functional modules, and the inner lock 2 is equipped with a control module to power the entire system and perform overall control.

[0029] Reference Figure 2 , Figure 3 and Figure 4 An external power board 3 is provided between the outer lock 1 and the inner lock 2. The external power board 3 includes a housing 32, a cover plate 31 fixedly connected to one side of the housing 32, a battery plate 33 disposed inside the housing 32, and a circuit board 34 for controlling current transmission. The circuit board 34 is fixedly connected to a transmission line 341 for detachable connection with the inner lock 2. The housing 32 is provided with a battery compartment 321 for placing the battery plate 33, a connection compartment 322 for placing the circuit board 34, and a lock body area 323. An indicator light 325 is provided through the side wall of the connection compartment 322. The cover plate 31 is fixedly connected to the opening of the connection compartment 322 and the battery compartment 321. Both the cover plate 31 and the housing 32 are provided with clearance holes 35 for the wires of the outer lock 1 to pass through.

[0030] When in use, the external power board 3 can effectively increase the total battery capacity, thereby improving the overall battery life of the door lock. During installation, the outer lock 1 is connected to the outside of the door, and the external power board 3 and the inner lock 2 are installed in sequence inside the door. The wires of the outer lock 1 pass through the clearance hole 35 and are connected to the inside of the inner lock 2. The transmission line 341 of the circuit board 34 passes through the clearance hole 35 and is connected to the inside of the inner lock 2, thereby realizing the electrical connection between the outer lock 1, the inner lock 2 and the external power board 3.

[0031] In this embodiment, two battery compartments 321 are provided, respectively located on both sides of the connecting compartment 322, and the battery compartments 321 and the connecting compartment 322 are arranged adjacent to each other. The two battery compartments 321 allow the external power board 3 to provide a larger total capacity. When one battery fails or is completely depleted, the other battery can still continue to power the system via the circuit board 34, enhancing system reliability. The adjacent arrangement of the battery compartments 321 and the connecting compartment 322 allows for the shortest possible wiring distance between the power supply and the circuit board 34, thereby optimizing internal electrical connections and achieving a compact module structure.

[0032] Reference Figure 2 , Figure 3 and Figure 4 The inner wall of the clearance hole 35 has a through hole 351 that communicates with the connection compartment 322. This allows the transmission line 341 inside the external power board 3 to easily pass through the clearance hole 35 and be in the same space as the wires of the external lock 1 and connected to the internal lock 2, making the wiring neater. A guide seat 36 is fixedly connected to the side wall of the connection compartment 322 near the through hole 351. The guide seat 36 has guide surfaces 361 on both sides, which are arc-shaped and extend towards the side near the through hole 351. The guide seat 36 can effectively guide the internal transmission line 341 to pass through the through hole 351, thereby facilitating the connection between the transmission line 341 and the internal lock 2; the arc-shaped guide surfaces 361 can effectively prevent the wires from being scratched, worn, or stuck by the edges during installation, thereby effectively protecting the insulation layer of the wires.

[0033] Reference Figure 3 , Figure 4 and Figure 5 The inner lock 2 has a wiring groove 22 on the side near the external power board 3, and a wire-passing hole 221 is provided on the bottom wall of the wiring groove 22, located near the main power supply 21. The wiring groove 22 allows the cable to be constrained in a fixed area during connection, thereby preventing the cable from being squeezed by the housing 32 and the outer wall of the inner lock 2 during installation, improving electrical safety. The wire-passing hole 221 is located near the main power supply 21, so that the transmission line 341 can be directly connected to the main power supply 21 after it emerges, thereby improving the convenience of installation.

[0034] Reference Figure 3 , Figure 4 A mounting base 37 is fixedly connected to the bottom wall of the inner shell 32. The mounting base 37 has a mounting hole 371 and is located within the lock body area 323. The mounting hole 371 is an oblong hole. By passing fasteners through the mounting hole 371 and the mounting base 37, the external power board 3 can be securely installed on the inner lock 2 and the door panel. At the same time, the oblong hole allows the fasteners to move within the installation range, thereby compensating for the cumulative errors caused by the pre-embedded space in the door body, the product itself, and the installation process.

[0035] Reference Figure 3 , Figure 4 and Figure 5 The inner wall of the connecting compartment 322 is fixedly connected with a fixing post 324 for fixing the circuit board 34. The circuit board 34 has insertion holes 342 at both ends for inserting into the fixing post 324. The fixing post 324 has a fixing hole 3241, and the side wall of the inner lock 2 near the external power board 3 has a mating hole 23 that corresponds to the fixing hole 3241. Compared with directly opening holes in the thin shell wall, opening fixing holes 3241 in the fixing post 324 can provide several times the depth of effective thread engagement. When the screw is screwed in, its locking force will be directly and efficiently transmitted to the main structure of the shell 32 through the fixing post 324, avoiding the force being dispersed on the thin wall surface of the shell 32. This effectively prevents the shell 32 wall surface from cracking or deforming due to stress concentration under long-term vibration or external impact.

[0036] The implementation principle of an expandable power supply smart door lock according to an embodiment of this application is as follows: When installing the door lock, the external power supply board 3 is fixed inside the door, the external lock 1 is fixed outside the door, the wires and transmission lines 341 of the external lock 1 are passed out from the clearance hole 35, arranged in the wiring groove 22 of the internal lock 2 and passed through the wire hole 221 to connect with the inside of the internal lock 2, and finally the internal lock 2 is fixedly connected to the surface of the external power supply board 3 to complete the installation.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A smart door lock with a scalable power supply, comprising an outer lock (1) and an inner lock (2), characterized in that: An external power board (3) is provided between the inner lock (2) and the outer lock (1). The inner lock (2) is provided with a main power supply (21). The external power board (3) includes a cover plate (31), a housing (32) fixedly connected to the cover plate (31), a battery plate (33) provided inside the housing (32), and a circuit board (34) for controlling current transmission. The circuit board (34) is connected to a transmission line (341) for detachable connection with the inner lock (2). The housing (32) is provided with a battery compartment (321) for placing the battery plate (33), a connection compartment (322) for placing the circuit board (34), and a lock body area (323). Both the cover plate (31) and the housing (32) are provided with clearance holes (35) for the wires of the outer lock (1) to pass through.

2. The smart door lock with a scalable power supply according to claim 1, characterized in that: The inner wall of the clearance hole (35) is provided with a through hole (351) that communicates with the connecting chamber (322).

3. The smart door lock with a scalable power supply according to claim 1, characterized in that: The battery compartment (321) and the connecting compartment (322) are arranged adjacent to each other.

4. The smart door lock with a scalable power supply according to claim 1, characterized in that: The connecting compartment (322) has a guide seat (36) fixedly connected to the side wall near the through hole (351). The guide seat (36) has guide surfaces (361) on both sides. The guide surfaces (361) are arc-shaped and extend towards the side near the through hole (351).

5. The smart door lock with a scalable power supply according to claim 1, characterized in that: The inner lock (2) has a wiring groove (22) on the side near the external power board (3), and a wire hole (221) is provided on the bottom wall of the wiring groove (22), which is located near the main power supply (21).

6. The smart door lock with a scalable power supply according to claim 1, characterized in that: The inner bottom wall of the housing (32) is fixedly connected to a mounting base (37), and the mounting base (37) has a mounting hole (371), which is a waist-shaped hole.

7. The smart door lock with a scalable power supply according to claim 1, characterized in that: The inner wall of the connecting compartment (322) is fixedly connected to a fixing post (324) that passes through the circuit board (34), and the circuit board (34) has a plug hole (342) for plugging into the fixing post (324).

8. The smart door lock with a scalable power supply according to claim 7, characterized in that: The fixing post (324) has a fixing hole (3241), and the inner lock (2) has a docking hole (23) on the side wall near the external power board (3), and the docking hole (23) is directly opposite the fixing hole (3241).

9. The smart door lock with a scalable power supply according to claim 1, characterized in that: An indicator light (325) is installed through the side wall of the connecting compartment (322).

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