Wireless charging type intelligent lock cylinder and key

Abstract

According to the wireless charging type passive intelligent lock cylinder and the key, the lock cylinder is arranged in a lock cylinder shell, a protective shell is arranged below the lock cylinder shell, a cavity is formed by the protective shell and the lower surface of the lock cylinder shell, an electromagnet of an annular structure is arranged in the cavity, and a pin column is arranged in the electromagnet in a sleeved mode; a first spring is arranged between the pin column and the bottom inside the electromagnet, a pin hole is further formed in the lock cylinder, the end of the pin column penetrates through the bottom of the lock cylinder shell to be inserted into the pin hole, a wireless charging panel is arranged at the end, close to a key hole of the lock cylinder, of the protective shell, and a winding coil is arranged on the inner surface of the wireless charging panel and electrically connected with a control circuit. The control circuit is electrically connected with the electromagnet, the electromagnet drives the pin column to retract to the bottom of the electromagnet when the wireless charging panel is powered on, and the key can rotate the lock cylinder. By combining the electromagnet, the primary and secondary lock column, the wireless charging technology and the wireless power transmission technology, the balance of high safety and convenience is achieved. And an efficient and reliable intelligent unlocking mode is realized.

Description

Technical Field

[0001] The utility model relates to the field of intelligent lock cores, in particular to a wireless charging type intelligent lock core and a key. Background Art

[0002] With the development of science and technology and the popularization of smart life, smart locks, as an important part of modern home security, have gradually replaced traditional mechanical locks and become the mainstream product on the market. However, the existing rechargeable smart lock cylinders and their matching keys have obvious problems in power supply mode and environmental adaptability.

[0003] First, most rechargeable smart lock cylinders and keys currently use contact power supply. Although this power supply method has achieved convenient power supply for smart locks to a certain extent, the problem of contact aging and easy damage has become increasingly prominent. Especially in complex outdoor environments, the non-waterproof nature of the contacts makes smart locks easily damaged when exposed to harsh environments such as rain, strong acids and alkalis, resulting in power failure, thus affecting the normal use of smart locks.

[0004] Secondly, some lock cores on the market use passive data verification to unlock. Although this method reduces the dependence on power to a certain extent, it still depends on the service life of the circuit board. Once the circuit board is damaged, the passive lock may not be opened normally, causing inconvenience to the user.

[0005] Therefore, in view of the shortcomings of the existing rechargeable smart lock cylinders and their keys in terms of power supply and environmental adaptability, the market is in urgent need of an electric lock cylinder that is both durable and waterproof and can provide stable power supply in harsh environments. Utility Model Content

[0006] The main purpose of the utility model is to provide a wireless charging type intelligent lock cylinder and key, so as to solve the problem that unlocking by passive data verification method depends on the service life of the circuit board.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is: a wireless charging type passive intelligent lock core, the lock core is arranged inside the lock core shell, a protective shell is arranged below the lock core shell, the protective shell and the lower surface of the lock core shell form a cavity, an annular electromagnet is arranged inside the cavity, a pin is sleeved inside the electromagnet, a first spring is arranged between the pin, the bottom of the electromagnet and the pin, a pin hole is also arranged on the lock core, the end of the pin passes through the bottom of the lock core shell and is inserted into the pin hole, a wireless charging plate is arranged at one end of the protective shell near the lock core keyhole, a winding coil is arranged on the surface of the wireless charging plate, the winding coil is electrically connected to the control circuit, and the control circuit is electrically connected to the electromagnet;

[0008] The wireless charging plate is powered on to retract the electromagnet drive pin to the bottom of the electromagnet, and the key can turn the lock cylinder.

[0009] In the preferred embodiment, a parent-child mounting seat is also provided on one side of the electromagnet, and a plurality of parent-child lock cylinders are provided on the parent-child mounting seat. The parent-child lock cylinders pass through the lower surface of the lock core shell and extend into the interior of the lock core. A second spring is provided between the lower end of the parent-child lock cylinder and the bottom of the parent-child mounting seat.

[0010] In a preferred embodiment, the control circuit is arranged below the mother-child mounting seat.

[0011] In the preferred embodiment, an annular groove body is also provided at one end of the lock core, an annular through groove is provided at the corresponding position of the lock core shell, a limiting ring is provided inside the annular groove body, the outer ring of the limiting ring is arranged inside the annular through groove, and the lock core is axially limited inside the lock core shell by the limiting ring.

[0012] In a preferred embodiment, the end of the lock core is connected to the lock tongue.

[0013] In the preferred embodiment, the key is provided with a latching tooth that matches the parent-child lock cylinder, the end of the key is connected to the power supply device, a wireless power transmission board is hinged below the power supply device, and the wireless power transmission board is electrically connected to the battery inside the power supply device;

[0014] The key is inserted into the lock core, and the wireless power transmission board is flipped close to the wireless charging board. The wireless charging board transmits the induced current to the control circuit. The control circuit controls the electromagnet to drive the pin to retract to the bottom of the electromagnet, and the key can rotate the lock core.

[0015] In a preferred embodiment, a charging port is provided above the power supply device, and a key handle is provided at the rear of the power supply device.

[0016] The utility model provides a wireless charging smart lock cylinder and key. The wireless power transmission board supplies power to the wireless charging board to realize wireless charging of the lock cylinder. The wireless charging board introduces current into the control circuit, which is a simple capacitor circuit for storing and releasing electrical energy. The control circuit discharges to the electromagnet, and the electromagnet generates magnetic force to drive the pin to retract. After the pin is retracted, the key is inserted into the lock cylinder, and the teeth of the key cooperate with the parent and child lock cylinders inside the lock cylinder to realize the rotation of the lock cylinder.

[0017] The design of this wireless charging passive smart lock core not only improves the durability and environmental adaptability of the lock core, but also realizes an efficient and reliable smart unlocking method through a simple capacitive circuit and wireless power supply technology, providing users with a more convenient and safe lock solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 This is the overall appearance structure diagram of the utility model;

[0020] Figure 2It is a side sectional structural diagram of the utility model;

[0021] Figure 3 It is the overall disassembled structure diagram of the utility model.

[0022] In the figure: lock cylinder housing 1; lock tongue 2; lock cylinder 3; pin hole 301; protective shell 4; wireless charging board 5; key 6; power supply device 7; charging port 701; key handle 702; wireless power transmission board 703; limit ring 8; pin 9; electromagnet 10; first spring 11; parent-child lock cylinder 12; control circuit 13; parent-child mounting seat 14; winding coil 15; second spring 16. DETAILED DESCRIPTION

[0023] like Figures 1 to 3 As shown, a wireless charging passive intelligent lock core, the lock core 3 is arranged inside the lock core shell 1, and a protective shell 4 is provided below the lock core shell 1, the protective shell 4 and the lower surface of the lock core shell 1 form a cavity, and an annular electromagnet 10 is provided inside the cavity, and a pin 9 is sleeved inside the electromagnet 10, and a first spring 11 is provided between the pin 9 and the bottom of the electromagnet 10 and the pin 9, and a pin hole 301 is also provided on the lock core 3, and the end of the pin 9 passes through the bottom of the lock core shell 1 and is inserted into the pin hole 301, and a wireless charging plate 5 is provided at one end of the protective shell 4 close to the keyhole of the lock core 3, and a winding coil 15 is provided inside the wireless charging plate 5, and the winding coil 15 is electrically connected to the control circuit 13, and the control circuit 13 is electrically connected to the electromagnet 10; when the wireless charging plate 5 is energized, the electromagnet 10 drives the pin 9 to retract to the bottom of the electromagnet 10, and the key 6 can rotate the lock core 3.

[0024] The present application uses a wireless power transmission board 703 to supply power to the wireless charging board 5. The wireless charging board 5 introduces current into the control circuit 13. The control circuit 13 is a simple capacitor circuit. The control circuit 13 discharges to the electromagnet 10. The electromagnet 10 generates magnetic force to retract the pin 9. After retraction, the key 6 is inserted into the lock cylinder 3. The teeth of the key 6 cooperate with the sub-lock cylinder 12 inside the lock cylinder 3 to rotate the lock cylinder. The control circuit 13 is a simple capacitor circuit with a simple circuit. In addition to inputting current to the lock cylinder 3, the key 6 also needs to cooperate with the sub-lock cylinder 12 inside the lock cylinder 3 to rotate the lock cylinder.

[0025] The specific method is as follows: the lock cylinder 3 is cleverly placed inside the lock cylinder housing 1. A protective shell 4 is provided below the housing, and the cavity between the two provides an installation space for the electromagnet 10. The electromagnet 10 adopts an annular structure, and a pin 9 is sleeved inside. A first spring 11 is provided between the pin 9 and the bottom of the electromagnet 10. This design allows the pin 9 to be extended and retracted under the drive of the electromagnet 10, and the pin 9 can be lifted up when the electromagnet 10 is not powered.

[0026] The lock core 3 is also provided with a pin hole 301, and the end of the pin 9 can pass through the bottom of the lock core housing 1 and be inserted into the pin hole 301. The lock core 3 cannot be rotated when it is not correctly unlocked. The end of the protective shell 4 close to the keyhole of the lock core 3 is equipped with a wireless charging plate 5, and the inner surface of the charging plate is provided with a winding coil 15, which is electrically connected to the control circuit 13, and the control circuit 13 is electrically connected to the electromagnet 10.

[0027] When the wireless charging plate 5 receives power from an external power source, the winding coil 15 generates current, which is then introduced into the control circuit 13. The control circuit 13 here adopts a simple capacitor circuit design, which not only ensures the stability of the circuit, but also simplifies the overall structure. When the control circuit 13 discharges to the electromagnet 10, the electromagnet 10 generates magnetic force to retract the pin 9. At this time, the key 6 can be smoothly inserted into the lock cylinder 3.

[0028] It is not enough to have only current input. The teeth of the key 6 need to precisely match the parent and child lock cylinders 12 inside the lock cylinder 3 to successfully turn the lock cylinder 3. This double unlocking mechanism greatly improves the security of the lock cylinder. Even if the electromagnet 10 is activated, the lock cylinder 3 cannot be opened without the correct key 6.

[0029] In addition, this wireless charging design completely solves the problems of aging, fragility, and non-waterproofness in the traditional contact-type power supply method. There is no need for physical contact between the wireless charging plate 5 and the external power supply, which greatly enhances the durability and environmental adaptability of the lock core. Whether in harsh environments such as rain, strong acids and alkalis, or in long-term outdoor exposure, the smart lock core can maintain a stable working state.

[0030] In the preferred embodiment, a sub-parent mounting seat 14 is further provided on one side of the electromagnet 10, and a plurality of sub-parent lock cylinders 12 are provided on the sub-parent mounting seat 14. The sub-parent lock cylinders 12 pass through the lower surface of the lock core housing 1 and extend into the lock core 3. A second spring 16 is provided between the lower end of the sub-parent lock cylinder 12 and the bottom of the sub-parent mounting seat 14. The sub-parent mounting seat 14 is used to install a plurality of sub-parent lock cylinders 12. The multiple sub-parent lock cylinders 12 can rotate the lock core only when they cooperate with the teeth of the key 6, which is equivalent to the engagement of the mechanical and electronic pins 9 to open the lock core.

[0031] The design of the parent-child mounting seat 14 enables multiple parent-child lock cylinders 12 to be neatly and stably installed inside the lock core housing 1. These parent-child lock cylinders 12 cooperate with the latch teeth of the key 6 to ensure that the lock core 3 can only be rotated after the correct key 6 is inserted. This design not only improves the safety of the lock core, but also enhances its convenience of use.

[0032] The design of this wireless charging passive smart lock cylinder achieves a balance between high security and durability by combining the electromagnet 10, the parent-child lock cylinder 12 and the wireless charging technology. Whether in homes, hotels or offices, it can be used with confidence, bringing a more convenient and safe experience to modern life.

[0033] In the preferred solution, the control circuit 13 is arranged below the parent-child mounting seat 14. This makes it more concealed and convenient to assemble and disassemble the control circuit 13.

[0034] In the preferred embodiment, an annular groove is further provided at one end of the lock core 3, an annular through groove is provided at a corresponding position of the lock core housing 1, a limiting ring 8 is provided inside the annular groove, and the outer ring of the limiting ring 8 is arranged inside the annular through groove, and the lock core 3 is axially limited inside the lock core housing 1 by the limiting ring 8. Figure 2-3 In the structure shown, the limiting ring 8 limits the entire lock core 3 inside the lock core housing 1, and an opening is provided on the limiting ring 8, mainly to facilitate the installation of the limiting ring 8.

[0035] In the preferred embodiment, the end of the lock core 3 is connected to the lock tongue 2. The lock tongue 2 is used to turn the lock on and off.

[0036] In the preferred embodiment, the key 6 is provided with a latching tooth for matching the parent-child lock cylinder 12, the end of the key 6 is connected to the power supply device 7, a wireless power transmission board 703 is hinged below the power supply device 7, and the wireless power transmission board 703 is electrically connected to the internal battery of the power supply device 7;

[0037] The key 6 is inserted into the lock core 3, and the wireless power transmission board 703 is flipped close to the wireless charging board 5. The wireless charging board 5 transmits the induced current to the control circuit 13. The control circuit 13 controls the electromagnet 10 to drive the pin 9 to retract to the bottom of the electromagnet 10, and the key 6 can rotate the lock core 3.

[0038] As an important part of the smart lock core, the key 6 is provided with latches for matching the parent-child lock cylinder 12. These latches precisely match the parent-child lock cylinder 12 inside the lock core 3. Only when the key 6 is correctly inserted can the lock core 3 be successfully turned. In addition, the end of the key 6 is connected to the power supply device 7. A wireless power transmission board 703 is hinged below the power supply device 7, and the wireless power transmission board 703 is electrically connected to the battery inside the power supply device 7.

[0039] When the key 6 is inserted into the lock cylinder 3, the user can flip the wireless power transmission board 703 to bring it close to the wireless charging board 5. At this time, the wireless charging board 5 senses the current generated by the wireless power transmission board 703 and transmits the current to the control circuit 13. After receiving the current, the control circuit 13 controls the electromagnet 10 to generate magnetic force and drives the pin 9 to retract to the bottom of the electromagnet 10. At this time, the pin 9 no longer blocks the rotation of the key 6, and the user can turn the key 6 to rotate the lock cylinder 3.

[0040] This design not only improves the security of the smart lock core, but also greatly simplifies the user's use steps. The user does not need to carry an additional power source or tools, and only needs to insert the key 6 into the lock core 3 and flip the wireless power transmission board 703 to power the lock core and unlock it.

[0041] In a preferred embodiment, a charging port 701 is provided on the top of the power supply device 7, and a key handle 702 is provided at the rear of the power supply device 7. The charging port 701 charges the battery inside the power supply device 7.

[0042] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A wireless charging passive intelligent lock cylinder, characterized by: The lock core (3) is arranged inside the lock core housing (1), a protective shell (4) is arranged below the lock core housing (1), the protective shell (4) and the lower surface of the lock core housing (1) form a cavity, an annular electromagnet (10) is arranged inside the cavity, a pin (9) is sleeved inside the electromagnet (10), a first spring (11) is arranged between the pin (9) and the bottom of the electromagnet (10) and the pin (9), a pin hole (301) is also arranged on the lock core (3), the end of the pin (9) passes through the bottom of the lock core housing (1) and is inserted into the pin hole (301), a wireless charging plate (5) is arranged at one end of the protective shell (4) close to the keyhole of the lock core (3), a winding coil (15) is arranged on the surface of the wireless charging plate (5), the winding coil (15) is electrically connected to the control circuit (13), and the control circuit (13) is electrically connected to the electromagnet (10); When the wireless charging plate (5) is energized, the electromagnet (10) drives the pin (9) to retract to the bottom of the electromagnet (10), and the key (6) can rotate the lock cylinder (3).

2. According to claim 1, a wireless charging passive intelligent lock cylinder is characterized in that: A parent-child mounting seat (14) is also provided on one side of the electromagnet (10), and a plurality of parent-child lock pillars (12) are provided on the parent-child mounting seat (14). The parent-child lock pillars (12) pass through the lower surface of the lock core housing (1) and extend into the interior of the lock core (3). A second spring (16) is provided between the lower ends of the parent-child lock pillars (12) and the bottom of the parent-child mounting seat (14).

3. According to claim 1, a wireless charging passive intelligent lock cylinder is characterized in that: The control circuit (13) is arranged below the parent-child mounting seat (14).

4. According to claim 1, a wireless charging passive intelligent lock cylinder is characterized in that: An annular groove body is further provided at one end of the lock core (3); an annular through groove is provided at a corresponding position of the lock core housing (1); a limiting ring (8) is provided inside the annular groove body; an outer ring of the limiting ring (8) is arranged inside the annular through groove; the lock core (3) is axially limited inside the lock core housing (1) by the limiting ring (8).

5. According to claim 1, the wireless charging passive intelligent lock cylinder is characterized by: The end of the lock core (3) is connected to the lock tongue (2).

6. According to claim 1, a wireless charging passive intelligent lock cylinder is characterized in that: The key (6) is provided with a latching tooth that matches the parent-child lock column (12); the end of the key (6) is connected to the power supply device (7); a wireless power transmission board (703) is hingedly connected below the power supply device (7); and the wireless power transmission board (703) is electrically connected to a battery inside the power supply device (7); The key (6) is inserted into the lock core (3), and the wireless power transmission board (703) is turned over to be close to the wireless charging board (5). The wireless charging board (5) transmits the induced current to the control circuit (13). The control circuit (13) controls the electromagnet (10) to drive the pin (9) to retract to the bottom of the electromagnet (10), and the key (6) can rotate the lock core (3).

7. According to claim 6, a wireless charging passive intelligent lock cylinder is characterized in that: A charging port (701) is provided above the power supply device (7), and a key handle (702) is provided at the rear of the power supply device (7).

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