Flat passive intelligent lock cylinder and key
By designing a flat passive intelligent lock core and key, and using magnetic field-driven lock pin insertion to shrink, the installation problem of the intelligent lock core in a flat space is solved, compactness and portability are achieved, and the application scope is expanded.
Patent Information
- Application Number
- CN202422370717.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The installation requirements of smart lock cores in flat and narrow spaces are difficult to meet, resulting in limited application scope.
A flat passive intelligent lock core and key is designed. By setting a lock core mechanism and a magnetic field-driven lock core plug sheet inside the lock core, power is used to supply power and retract the lock core plug sheet by Lorentz force to drive the lock core plug sheet to achieve unlocking.
It effectively reduces the axial volume of the lock core, improves compactness and portability, and expands the application field of smart lock cores.
Smart Images
Figure CN223177301U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of intelligent lock cores, in particular to a flattened passive intelligent lock core and a key. Background Art
[0002] With the progress of technology and the development of society, people's demand for security is increasing day by day. As an important part of the modern security field, intelligent lock cores are gradually replacing traditional mechanical lock cores, becoming the mainstream of the market, and are widely used in various devices such as homes, commercial buildings, and public facilities for security protection. Compared with traditional locks, intelligent lock cores not only provide higher security but also greatly improve the convenience of use.
[0003] An intelligent lock core usually includes several key components: First is the electronic control module, which is the brain of the intelligent lock, responsible for processing all external input signals and controlling the operation of the lock; second is the power supply system, which provides necessary power support for the intelligent lock, usually using replaceable batteries or rechargeable batteries; the communication module enables the intelligent lock to communicate wirelessly with the user's mobile phone or other intelligent devices, achieving remote control through technologies such as Bluetooth and Wi-Fi; the driving device is the power source in the intelligent lock, usually composed of a motor or an electromagnet, used to drive the lock tongue to perform unlocking or locking actions; finally, there is the lock tongue and lock body structure, which is similar to the structure of a traditional mechanical lock, including components such as lock tongues and bolts, for actual locking functions.
[0004] Although intelligent lock cores bring many advantages, due to the integration of more electronic control mechanisms inside, their overall volume is much larger than that of traditional mechanical locks, and a larger radial space is required during installation. This means that in certain specific situations, such as when the radial distance of the installation site is insufficient, or when it needs to be installed in a flat and narrow box, standard-sized intelligent lock cores are no longer applicable, which to a certain extent limits the application range of intelligent lock cores. Therefore, it is necessary to design an intelligent lock core and its supporting key suitable for flat installation space design to perform the functions of an intelligent lock in a limited space, thereby expanding the application field of intelligent lock cores and enabling them to be applied in more diverse environments. Summary of the Utility Model
[0005] The main purpose of the utility model is to provide a flattened passive intelligent lock core and a key to solve the problem of the installation requirement of intelligent lock cores in flat and narrow spaces.
[0006] To solve the above technical problems, the technical solution adopted by the present utility model is as follows: a flattened passive intelligent lock core and key. The lock core is arranged inside the lock core housing. Above the lock core inside the lock core housing, there is a locking bolt mechanism. The locking bolt insert is arranged in the magnetic field inside the locking bolt mechanism, and its lower end is inserted into the locking hole of the lock core. The locking bolt insert is electrically connected to the control circuit below the lock core. Inside the keyhole in the middle of the lock core, there are multiple power connection contacts, which are electrically connected to the control circuit. At the end of the intelligent key, there are multiple signal contacts. When the intelligent key is inserted into the keyhole of the lock core, power is supplied to the locking bolt mechanism through the signal contacts, and the magnetic field drives the locking bolt insert to retract upwards, and the intelligent key drives the lock core to unlock the lock.
[0007] In a preferred embodiment, the structure of the locking bolt mechanism is as follows: on both sides of the locking bolt insert, there are a first magnetic sheet and a second magnetic sheet with opposite magnetic poles. The first magnetic sheet and the second magnetic sheet are fixed inside the magnet seat, and the magnetic field direction formed by their opposition is perpendicular to the front end face of the lock core. The upper end of the locking bolt insert is connected to the top end of the locking bolt groove in the middle of the magnet seat through an elastic member. The elastic member provides a force for the lower end of the locking bolt insert to abut against the locking hole in the lock core. Inside the locking bolt insert, there is a conductive circuit perpendicular to the magnetic field direction, and the conductive circuit is electrically connected to the control circuit. After being energized, the locking bolt insert retracts upwards under the drive of the Lorentz force.
[0008] In a preferred embodiment, the magnet seat is a flat fan shape and is fixed inside the lock core housing, and its lower end passes through the lock core housing and abuts against the outer surface of the lock core.
[0009] In a preferred embodiment, the magnet seat is made of non-conductive material, so that the magnetic field provides electrical insulation to the outside world.
[0010] In a preferred embodiment, when the lower end of the locking bolt insert abuts against the bottom end of the locking hole, its upper end still extends into the locking bolt groove in the middle of the magnet seat for a certain distance.
[0011] In a preferred embodiment, the conductive circuit is arranged at the upper end of the locking bolt insert. When the locking bolt insert slides in the locking bolt groove, the conductive circuit is always within the magnetic field range formed by the first magnetic sheet and the second magnetic sheet.
[0012] In a preferred embodiment, an annular tooth part housing is arranged outside the multiple signal contacts at the end of the intelligent key, and a convex block is arranged at the upper end of the outer surface of the tooth part housing;
[0013] At the upper end of the inner wall of the keyhole of the lock core, there is a groove adapted to the convex block.
[0014] In a preferred embodiment, a stepped ring is arranged at the rear end of the lock core housing, and a matching annular groove is arranged at the rear end of the lock core. The stepped ring is arranged in the annular groove to limit the axial movement of the lock core.
[0015] In a preferred embodiment, the rear end of the lock core is connected to the lock tongue.
[0016] In a preferred embodiment, a hanging ear is further arranged at the tail end of the handle of the intelligent key.
[0017] The present utility model provides a flattened passive intelligent lock core and key. The intelligent key supplies power to the inside of the lock core through an electricity connection contact and conducts information transmission. After authentication, it supplies power to the bolt mechanism. The energized conductive circuit generates a Lorentz force in the magnetic field, driving the bolt insert to retract upwards, releasing the restriction on the rotation of the lock core. The intelligent key rotates the lock core through a convex block to unlock.
[0018] The flat sheet-shaped bolt mechanism effectively reduces the occupied space of the mechanical structure, and arranges the intelligent drive system and the mechanical structure within a smaller axial range, effectively reducing the axial volume of the intelligent lock core, improving the compactness and portability of the intelligent lock core, meeting the installation requirements in special environments, thus expanding the application field of the intelligent lock core and further promoting the development and popularization of intelligent lock technology. Description of the Drawings
[0019] The following further describes the present utility model in conjunction with the drawings and embodiments:
[0020] Figure 1 is the axonometric structural diagram of the overall appearance of the present utility model;
[0021] Figure 2 is the cross-sectional structural diagram of the overall appearance when the intelligent key of the present utility model is not inserted;
[0022] Figure 3 is the cross-sectional structural diagram of the overall appearance when the intelligent key of the present utility model is inserted;
[0023] Figure 4 is the end face structural diagram of the passive lock core of the present utility model;
[0024] Figure 5 is the end face structural diagram of the intelligent key of the present utility model;
[0025] Figure 6 is the side view structural diagram of the appearance of the passive lock core of the present utility model in the exploded mode;
[0026] Figure 7 is the side view structural diagram of the appearance of the bolt mechanism of the present utility model in the exploded mode.
[0027] In the figure: lock core 1; electricity connection contact 101; locking hole 102; groove 103; annular groove 104; lock core housing 2; stepped ring 201; control circuit 3; intelligent key 4; signal contact 401; tooth part housing 402; convex block 403; hanging ear 404; bolt insert 5; first magnetic sheet 6; second magnetic sheet 7; magnet seat 8; bolt slot 801; elastic member 9; conductive circuit 10; lock tongue 11. Detailed Embodiments
[0028] Embodiment 1
[0029] AsFigures 1 to 7 As shown in the figure, a flattened passive intelligent lock core and key are provided. The lock core 1 is arranged inside the lock core housing 2. Above the lock core 1 inside the lock core housing 2, there is a bolt mechanism. The bolt insert 5 is arranged in the internal magnetic field of the bolt mechanism, and its lower end is inserted into the locking hole 102 of the lock core 1. The bolt insert 5 is electrically connected to the control circuit 3 below the lock core 1. Inside the keyhole in the middle of the lock core 1, there are multiple power connection contacts 101, and the power connection contacts 101 are electrically connected to the control circuit 3. At the end of the intelligent key 4, there are multiple signal contacts 401. When the intelligent key 4 is inserted into the keyhole of the lock core 1, power is supplied to the bolt mechanism through the signal contacts 401, and the magnetic field drives the bolt insert 5 to retract upward, and the intelligent key 4 drives the lock core 1 to unlock the lock.
[0030] In the preferred solution, the structure of the bolt mechanism is as follows: on both sides of the bolt insert 5, there are a first magnetic sheet 6 and a second magnetic sheet 7 with opposite magnetic poles. The first magnetic sheet 6 and the second magnetic sheet 7 are fixed in the magnet seat 8, and the magnetic field direction formed by the two opposite each other is perpendicular to the front end face of the lock core 1. The upper end of the bolt insert 5 is connected to the top of the bolt slot 801 in the middle of the magnet seat 8 through an elastic member 9. The elastic member 9 provides a force for the bolt insert 5 to abut against the locking hole 102 of the lock core 1 at the lower end. Inside the bolt insert 5, there is a conductive line 10 perpendicular to the magnetic field direction, and the conductive line 10 is electrically connected to the control circuit 3. After being energized, the bolt insert 5 retracts upward under the drive of the Lorentz force.
[0031] This application adopts contact power supply and information transmission. The intelligent key 4 is internally equipped with a power source, and the lock core 1 is passive. The contact structure is compact. When the intelligent key 4 is inserted into the keyhole of the lock core 1 and the signal contacts 401 abut against the power connection contacts 101, the control circuit 3 is activated and key information is identified.
[0032] Specifically, the opposite first magnetic sheet 6 and second magnetic sheet 7 are respectively the N pole and the S pole, and the space sandwiched by the two forms a constant magnetic field perpendicular to the end face of the lock core 1. The conductive line 10 in the bolt insert 5 is not affected by the magnetic field when not energized, and abuts against the locking hole 102 under the push of the elastic member 9 to lock the rotation of the lock core 1; after being energized in the required direction, the magnetic field generates a Lorentz force on the conductive line 10, driving it to drive the bolt insert 5 to move upward until it completely disengages from the locking hole 102, realizing the unlocking of the rotation of the lock core 1.
[0033] In the preferred solution, the magnet seat 8 is a flat fan shape and is fixed inside the lock core housing 2, and its lower end passes through the lock core housing 2 and abuts against the outer surface of the lock core 1. By flattening the mechanical bolt structure, the axial length of the lock core is effectively reduced, and it is closely attached to the lock core 1, realizing the compact layout of the lock.
[0034] In the preferred solution, the magnet seat 8 is made of non-conductive material, so that the magnetic field has an electrical insulation effect on the outside world.
[0035] The magnet base 8 isolates the direct contact between the magnetic isolation sheet and the bolt insert 5, preventing the conduction of the current in the conductive circuit 10 or avoiding magnetic circuit short - circuit, providing an installation space for the first magnetic sheet 6, the second magnetic sheet 7 and the bolt insert 5, ensuring the function of the magnet while providing the effect of electrical insulation, and preventing the bolt mechanism from being cracked by external electromagnetic means.
[0036] In a preferred embodiment, when the lower end of the bolt insert 5 abuts against the bottom end of the locking hole 102, its upper end still extends into the bolt slot 801 in the middle of the magnet base 8 for a certain distance. This ensures that the bolt insert 5 always shuttles within the bolt slot 801, preventing the loss of the locking of the lock core 1 when the lower end of the bolt insert 5 abuts against the bottom end of the locking hole 102 while the upper end is not within the bolt slot 801.
[0037] In a preferred embodiment, the conductive circuit 10 is arranged at the upper end of the bolt insert 5. When the bolt insert 5 shuttles within the bolt slot 801, the conductive circuit 10 is always within the magnetic field range formed by the first magnetic sheet 6 and the second magnetic sheet 7. This enables the conductive circuit 10 to always be controlled by the magnetic field.
[0038] In a preferred embodiment, an annular tooth - shaped housing 402 is provided outside the outer circle of a plurality of signal contacts 401 at the end of the smart key 4, and a convex block 403 is provided at the upper end of the outer surface of the tooth - shaped housing 402;
[0039] A groove 103 adapted to the convex block 403 is provided at the upper end of the inner wall of the keyhole of the lock core 1.
[0040] The tooth - shaped housing 402 provides protection for the signal contacts 401. Through the cooperation of the convex block 403 and the groove 103, the smart key 4 can drive the unlocked lock core 1 to rotate, and at the same time provides guidance for the insertion of the smart key 4. Since the required Lorentz force direction is fixed upward, the power - on current direction needs to be strictly adapted to the magnetic field direction. The guiding device prevents the smart key 4 from being inserted in the wrong direction, resulting in failure to unlock.
[0041] In a preferred embodiment, a stepped ring 201 is provided at the rear end of the lock core housing 2, and a mating annular groove 104 is provided at the rear end of the lock core 1. The stepped ring 201 is arranged in the annular groove 104 to limit the axial movement of the lock core 1.
[0042] In a preferred embodiment, the rear end of the lock core 1 is connected to the lock tongue 11. The lock tongue 11 is used to control the rotation switch of the lock.
[0043] In a preferred embodiment, a hanging ear 404 is further provided at the tail end of the handle of the smart key 4.
[0044] The above embodiments are only the preferred technical solutions of the present utility model and should not be regarded as limitations on the present utility model. The protection scope of the present utility model 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 utility model.
Claims
1. A flattened passive intelligent lock core and key, characterized in that: The lock core (1) is arranged inside the lock core housing (2). Above the lock core (1) inside the lock core housing (2), there is a bolt mechanism. The bolt insert (5) is arranged in the internal magnetic field of the bolt mechanism, and its lower end is inserted into the locking hole (102) of the lock core (1). The bolt insert (5) is electrically connected to the control circuit (3) below the lock core (1). Inside the keyhole in the middle of the lock core (1), there are multiple electrical contact points (101), and the electrical contact points (101) are electrically connected to the control circuit (3). At the end of the intelligent key (4), there are multiple signal contact points (401). When the intelligent key (4) is inserted into the keyhole of the lock core (1), power is supplied to the bolt mechanism through the signal contact points (401), and the magnetic field drives the bolt insert (5) to retract upwards, and the intelligent key (4) drives the lock core (1) to unlock the lock.
2. The flattened passive intelligent lock core and key according to claim 1, characterized in that: The structure of the bolt mechanism is as follows: On both sides of the bolt insert (5), there are a first magnetic sheet (6) and a second magnetic sheet (7) with opposite magnetic poles. The first magnetic sheet (6) and the second magnetic sheet (7) are fixed inside the magnet seat (8), and the magnetic field direction formed by their opposition is perpendicular to the front end face of the lock core (1). The upper end of the bolt insert (5) is connected to the top end of the bolt slot (801) in the middle of the magnet seat (8) through an elastic member (9). The elastic member (9) provides a force for the lower end of the bolt insert (5) to abut against the locking hole (102) of the lock core (1). Inside the bolt insert (5), there is a conductive circuit (10) perpendicular to the magnetic field direction, and the conductive circuit (10) is electrically connected to the control circuit (3). After being energized, the bolt insert (5) retracts upwards under the drive of the Lorentz force.
3. The flat passive intelligent lock cylinder and key according to claim 2, characterized in that: The magnet seat (8) is a flat fan shape and is fixed inside the lock core housing (2), and its lower end passes through the lock core housing (2) and abuts against the outer surface of the lock core (1).
4. The flat passive intelligent lock core and key according to claim 3, characterized in that: The magnet seat (8) is made of non-conductive material, so that the magnetic field has an electrical insulation effect on the outside world.
5. The flat passive intelligent lock cylinder and key according to claim 2, characterized in that: When the lower end of the bolt insert (5) abuts against the bottom end of the locking hole (102), its upper end still extends into the bolt slot (801) in the middle of the magnet seat (8) for a certain distance.
6. The flat passive intelligent lock core and key according to claim 2, characterized in that: The conductive circuit (10) is arranged at the upper end of the bolt insert (5). When the bolt insert (5) shuttles in the bolt slot (801), the conductive circuit (10) is always within the magnetic field range formed by the first magnetic sheet (6) and the second magnetic sheet (7).
7. The flattened passive intelligent lock core and key according to claim 1, characterized in that: An annular tooth part housing (402) is arranged outside the multiple signal contact points (401) at the end of the intelligent key (4), and a convex block (403) is arranged at the upper end of the outer surface of the tooth part housing (402); At the upper end of the inner wall of the keyhole of the lock core (1), there is a groove (103) adapted to the convex block (403).
8. The flattened passive intelligent lock core and key according to claim 1, characterized in that: A stepped ring (201) is arranged at the rear end of the lock core housing (2), and a matching annular groove (104) is arranged at the rear end of the lock core (1). The stepped ring (201) is arranged in the annular groove (104) to limit the axial movement of the lock core (1).
9. The flat passive intelligent lock core and key according to claim 1, characterized in that: The rear end of the lock core (1) is connected to the lock tongue (11).
10. The flattened passive intelligent lock core and key according to claim 1, characterized in that: A hanging ear (404) is also arranged at the tail end of the handle of the intelligent key (4).