Intelligent door lock wireless control device
By designing circuit components and spare keys on the back of the NFC card, the problem of difficulty in unlocking and easy loss of NFC cards after power outage is solved, and backup unlocking and loss reminders are realized in the event of power outage, improving the reliability and convenience of the system.
Patent Information
- Application Number
- CN202421834799.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-07-31
AI Technical Summary
Common NFC cards are difficult to unlock after the NFC door lock is powered off and are easily lost, and lack a backup unlocking solution.
A smart door lock wireless control device is designed, including circuit components and spare keys in the back groove. It uses Bluetooth distance sensor to monitor the card position, a sounding alarm reminds the risk of loss, and uses a spare key to unlock the lock when power is off.
It effectively reduces the risk of NFC card loss and provides a backup lock-opening method in the event of power outage, improving the reliability and convenience of the system.
Smart Images

Figure CN223065757U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wireless control devices, in particular to a wireless control device for an intelligent door lock. Background Art
[0002] NFC cards play an important role in the intelligent door lock system and are one of the key components of its wireless control device. When an NFC card cooperates with a door lock with NFC function, it can be regarded as a form of wireless control device for an intelligent door lock. This configuration allows users to use NFC cards for authentication and authorization to unlock the door without traditional keys. This system provides convenience and security because users only need to bring the NFC card close to the door lock to complete the unlocking operation, and permission management can be carried out as needed.
[0003] However, common NFC cards usually only have the function of NFC induction unlocking, which makes it difficult to perform induction unlocking after the NFC door lock is powered off and is easy to lose. In view of this, we propose a wireless control device for an intelligent door lock. Summary of the Utility Model
[0004] The purpose of the utility model is to propose a wireless control device for an intelligent door lock aiming at the problems existing in the background art.
[0005] The technical solution of the utility model: A wireless control device for an intelligent door lock includes an NFC door card with a groove opened on its back. A cover plate for shielding and protecting the groove is arranged at the opening of the groove on the back of the NFC door card. Circuit components are arranged in the groove. The circuit components include a circuit board. An NFC induction chip is installed on the top wall of the circuit board. A Bluetooth distance sensor is also installed on the top wall of the circuit board. A battery, a sound alarm and a separator are installed in the groove;
[0006] A backup component for backup is arranged in the NFC door card. The backup component includes a backup key. A vertical rod is connected to the back wall of the backup key. A spring is connected to the back wall of the vertical rod. A toggle button is installed at the top end of the vertical rod.
[0007] Preferably, the separator divides the groove space into three groups, and the battery, the sound alarm and the circuit components are respectively arranged in the three groups of spaces.
[0008] Preferably, the battery is electrically connected to the sound alarm and the circuit components.
[0009] Preferably, a charging socket is opened at the top of the NFC door card, and the charging socket is arranged at the top of the battery.
[0010] Preferably, the Bluetooth distance sensor is electrically connected to the sound alarm, and a sound hole is opened on the wall of the cover plate, and the positions of the plurality of sound holes correspond to the positions of the sound alarm.
[0011] Preferably, a first active cavity and a second active cavity are provided in the NFC door card, the first active cavity is larger than the second active cavity, and the first active cavity is connected to the second active cavity.
[0012] Preferably, the spare key and the spring are both arranged in the first active cavity, the upper structure of the vertical rod is arranged in the first active cavity, and the lower structure of the vertical rod is arranged in the second active cavity.
[0013] Compared with the prior art, the utility model has the following beneficial technical effects:
[0014] The utility model electrically connects the Bluetooth distance sensor with the sound alarm, and under the Bluetooth connection between the Bluetooth distance sensor and the mobile phone, when the NFC door card is away from the user, the sound alarm can sound an alarm, thereby reminding the user to check the NFC door card in time and reduce the risk of losing it. The spare key can be moved in conjunction with the vertical rod by pulling the toggle button, so that the NFC door card plays a spare role under the setting of the spare key to prevent the door from being difficult to open after a power outage. At the same time, under the setting of the spring, it is conducive to resetting the spare key after use, so that it is hidden in the NFC door card to reduce the space occupied to prevent it from affecting carrying. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional structural schematic diagram of a smart door lock wireless control device;
[0016] Figure 2 yes Figure 1 Schematic diagram of the back opening structure;
[0017] Figure 3 yes Figure 1 Schematic diagram of the three-dimensional structure of the middle cover;
[0018] Figure 4 yes Figure 1 Schematic diagram of the three-dimensional structure of the spare components.
[0019] Figure numerals: 1. NFC door card; 2. Cover plate; 4. Circuit assembly; 41. Circuit board; 42. NFC sensing chip; 43. Bluetooth distance sensor; 5. Battery; 6. Sounding alarm; 7. Isolator; 8. Spare assembly; 81. Spare key; 82. Vertical rod; 83. Spring; 84. Toggle button. DETAILED DESCRIPTION
[0020] The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0021] Embodiment
[0022] As Figures 1-4 shown, a wireless control device for an intelligent door lock proposed by the present utility model includes an NFC door card 1 with a groove formed in its back. The cover plate 2 is connected to the back wall of the NFC door card 1 in a hinge manner, facilitating the flipping of the cover plate 2. The cover plate 2 is provided to block the groove formed in the back wall of the NFC door card 1, which is beneficial for protecting the structure in the groove. The battery 5, the sound alarm 6, the separator 7, and the circuit component 4 are all installed in the groove formed in the back wall of the NFC door card 1. The separator 7 divides the groove into three groups, and the circuit component 4, the battery 5, and the sound alarm 6 are respectively located in the three groove spaces and are separated by the separator 7 to avoid interference between the three. The battery 5 is electrically connected to the sound alarm 6 and the circuit component 4, which is beneficial for power supply. A charging socket is formed in the top wall of the NFC door card 1, and the charging socket is arranged at the top of the battery 5 to charge the battery 5, facilitating the sound alarm 6 to give an alarm.
[0023] Furthermore, the circuit component 4 includes a circuit board 41, an NFC induction chip 42, and a Bluetooth distance sensor 43. The circuit board 41 is fixedly installed on the bottom wall of the groove, and both the NFC induction chip 42 and the Bluetooth distance sensor 43 are fixedly installed on the top wall of the circuit board 41. The Bluetooth distance sensor 43 can be connected to the user's mobile phone via Bluetooth, which is beneficial for monitoring the position of the NFC door card 1 under the action of Bluetooth connection. At the same time, the Bluetooth distance sensor 43 is also electrically connected to the sound alarm 6, so that when the Bluetooth distance sensor 43 exceeds the set range, it can make a sound under the setting of the sound alarm 6, which is beneficial for the user to timely check the location of the NFC door card 1 during use to prevent forgetting to take it, and when it falls outside, it can also remind the user to check it, reducing the risk of its loss. Sound holes are formed in the wall of the cover plate 2, and multiple sound holes are distributed in an array state on the cover plate 2, and the positions correspond to the position of the sound alarm 6, which is beneficial for the sound alarm 6 to make a sound and avoids blocking the sound alarm 6, resulting in a decrease in volume during the sound-making process and affecting the warning effect.
[0024] Furthermore, a spare component 8 for backup is provided inside the NFC door card 1. The spare component 8 includes a spare key 81, a vertical rod 82, a spring 83, and a toggle button 84. The spare key 81 is arranged in a first movable cavity opened inside the NFC door card 1. A first movable opening is formed on the side wall of the NFC door card 1, and the first movable opening is communicated with the inside of the first movable cavity, facilitating the movement of the spare key 81 out of the NFC door card 1 during the movement process for convenient use and avoiding the problem of difficulty in opening the door after the intelligent door lock is powered off; a second movable cavity is also opened inside the NFC door card 1. A second movable opening is formed on the bottom wall of the NFC door card 1, and the second movable opening is communicated with the second movable cavity. The second movable cavity is communicated with the first movable cavity. The bottom end of the vertical rod 82 is located outside the bottom of the NFC door card 1. The toggle button 84 is located at the bottom of the NFC door card 1 and is fixedly installed at the bottom end of the vertical rod 82, which is beneficial to driving the movement of the vertical rod 82. The top end of the vertical rod 82 penetrates through the second movable cavity and is arranged in the first movable cavity. The back wall of the spare key 81 is fixedly connected to the outer wall of the vertical rod 82, so that the spare key 81 can be driven to move when the toggle button 84 is pushed. The size of the first movable cavity is larger than that of the second movable cavity, and the spare key 81 is adapted to the internal space of the first movable cavity, avoiding the spare key 81 entering the second movable cavity during the movement process and affecting subsequent reuse; two springs 83 are symmetrically installed on the back wall of the vertical rod 82, and one end of each of the two springs 83 is connected to the first movable cavity, which is beneficial to driving the reset of the released spare key 81 and enabling it to move back into the NFC door card 1 again, reducing the occupation of space after storage and affecting carrying.
[0025] The above specific embodiments are merely several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A wireless control device for an intelligent door lock, including an NFC door card (1) with a groove formed on its back, characterized in that: A cover plate (2) for facilitating the shielding and protection of the groove is provided at the opening of the back groove of the NFC door card (1). A circuit component (4) is arranged and installed in the groove. The circuit component (4) includes a circuit board (41). An NFC induction chip (42) is installed on the top wall of the circuit board (41). A Bluetooth distance sensor (43) is also installed on the top wall of the circuit board (41). A battery (5), a sound alarm (6) and a spacer (7) are installed in the groove; A backup component (8) for backup is provided in the NFC door card (1). The backup component (8) includes a backup key (81). A vertical rod (82) is connected to the back wall of the backup key (81). A spring (83) is connected to the back wall of the vertical rod (82). A toggle button (84) is installed at the top end of the vertical rod (82).
2. The wireless control device for an intelligent door lock according to claim 1, wherein, The spacer (7) divides the groove space into three groups, and the battery (5), the sound alarm (6) and the circuit component (4) are respectively arranged in the three groups of spaces.
3. The wireless control device for an intelligent door lock according to claim 1, characterized in that, The battery (5) is electrically connected to the sound alarm (6) and the circuit component (4).
4. An intelligent door lock wireless control device according to claim 1, characterized in that, A charging socket is provided at the top of the NFC door card (1), and the charging socket is arranged at the top of the battery (5).
5. An intelligent door lock wireless control device according to claim 1, characterized in that, The Bluetooth distance sensor (43) is electrically connected to the sound alarm (6). Sound holes are provided on the wall of the cover plate (2), and the positions of the plurality of sound holes correspond to the position of the sound alarm (6).
6. The wireless control device of an intelligent door lock according to claim 1, characterized in that, A first movable cavity and a second movable cavity are provided in the NFC door card (1). The size of the first movable cavity is larger than that of the second movable cavity, and the first movable cavity is communicated with the second movable cavity.
7. An intelligent door lock wireless control device according to claim 6, characterized in that, The backup key (81) and the spring (83) are both arranged in the first movable cavity. The upper part of the vertical rod (82) is arranged in the first movable cavity, and the lower part of the vertical rod (82) is arranged in the second movable cavity.