Low-power intelligent door lock
Patent Information
- Application Number
- CN202522324571.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-03
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-11-03
AI Technical Summary
现代智能门锁集成了指纹识别、人脸识别等精密智能元器件，这类组件对工作环境温度具有严格要求，在北方严寒地区（冬季气温常低于-20℃），低温会导致元器件反应速率下降、识别算法运行延迟，甚至引发电池活性降低、供电中断等问题，从而严重影响了居民的正常生活；
本实用新型中，外壳与内壳间的加热机构能通过加热丝产热，并经密封板的均匀出气孔将热量传递至智能元器件，有效缓解低温对元器件的影响，避免出现反应迟钝或故障，拓宽门锁在寒冷环境中的使用场景，同时，密封板通过连接板的卡接孔与外壳的稳固柱配合安装，搭配直径大于卡接孔的橡胶限位圈，可牢牢固定密封板防止松动，且安装槽位于内壳内壁并避开外部接触，能保护加热丝同时避免安全隐患。
Smart Images
Figure CN224859360U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of smart door lock technology, specifically a low-power smart door lock. Background Technology
[0002] With the deep integration of the Internet of Things and the smart home ecosystem, smart door locks, as the core entry point and interactive terminal for home security, have achieved iterative upgrades from "mechanical unlocking" to "intelligent recognition," and their market penetration rate continues to climb. As an intelligent iteration of traditional mechanical locks, smart door locks are security entry devices that integrate technologies from multiple fields such as biometrics, the Internet of Things, and precision mechanics. Their core value lies in improving the convenience of opening doors, environmental adaptability, and home security level through intelligent means. Modern smart door locks integrate sophisticated smart components such as fingerprint recognition and facial recognition. These components have strict requirements for the working environment temperature. In the frigid northern regions (where winter temperatures are often below -20°C), low temperatures can cause a decrease in the response rate of components, delays in the operation of recognition algorithms, and even problems such as reduced battery activity and power outages, which can seriously affect the normal life of residents. Therefore, a low-power smart door lock is proposed to address the above problems. Utility Model Content
[0003] The purpose of this invention is to provide a low-power smart door lock to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: A low-power smart door lock includes an outer shell and an inner shell, with smart components disposed between the outer shell and the inner shell, and a heating mechanism disposed inside the outer shell; The heating mechanism includes a mounting groove, a heating wire is installed inside the mounting groove, a sealing plate is installed on the top of the mounting groove, an air vent is opened in the inner wall of the sealing plate, a connecting plate is fixedly connected to the outer side of the sealing plate, a snap-fit hole is opened in the inner side of the connecting plate, a stabilizing column is fixedly connected to the top of the outer shell, and a rubber limiting ring is fixedly connected to the top of the stabilizing column.
[0005] As a further optimization of this utility model, the outer shell and the inner shell are respectively installed on both sides of the door panel, and the mounting groove is formed in the inner wall of the inner shell.
[0006] As a further optimization of this utility model, the mounting groove is located on the outside of the smart component, and the sealing plate is adapted to the mounting groove.
[0007] As a further optimization of this utility model, the air outlets are evenly distributed inside the sealing plate, and the connecting plates are symmetrically distributed on the outside of the sealing plate.
[0008] As a further optimization of this utility model, the intelligent component is located inside the sealing plate, and the connecting plate is tightly attached to the outside of the inner shell.
[0009] As a further optimization of this utility model, the stabilizing posts are symmetrically distributed on the outside of the mounting groove, and the stabilizing posts are adapted to the snap-fit holes.
[0010] As a further optimization of this utility model, the rubber limiting ring is located on the outside of the connecting plate, and the diameter of the rubber limiting ring is larger than the inner diameter of the snap-fit hole.
[0011] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the heating mechanism between the outer shell and the inner shell generates heat through the heating wire and transfers the heat to the intelligent components through the uniform air vents of the sealing plate. This effectively mitigates the impact of low temperatures on the components, preventing sluggish response or malfunctions and expanding the application scenarios of the door lock in cold environments. At the same time, the sealing plate is installed by engaging with the stabilizing post of the outer shell through the snap-fit hole of the connecting plate. With the addition of a rubber limiting ring with a diameter larger than the snap-fit hole, the sealing plate can be firmly fixed to prevent loosening. Furthermore, the mounting groove is located on the inner wall of the inner shell and avoids external contact, which can protect the heating wire and prevent safety hazards. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model when unfolded; Figure 2 This is a schematic diagram of the outer side of the inner shell of this utility model; Figure 3 This is an exploded view of the heating mechanism of this utility model; Figure 4 This is a schematic diagram of the outer side of the sealing plate of this utility model; Figure 5 This utility model Figure 3 Enlarged view of the structure at point A in the middle; Figure 6 This utility model Figure 2 Enlarged view of the structure at point B.
[0013] In the diagram: 1. Outer shell; 2. Inner shell; 3. Intelligent components; 4. Heating mechanism; 41. Mounting groove; 42. Heating wire; 43. Sealing plate; 44. Vent hole; 45. Connecting plate; 46. Snap-fit hole; 47. Stabilizing post; 48. Rubber limit ring. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0015] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0016] Please see Figures 1-6 This utility model provides a technical solution: A low-power smart door lock includes an outer shell 1 and an inner shell 2, with a smart component 3 disposed between the outer shell 1 and the inner shell 2, and a heating mechanism 4 disposed inside the outer shell 1; The heating mechanism 4 includes a mounting groove 41, a heating wire 42 is installed inside the mounting groove 41, a sealing plate 43 is installed on the top of the mounting groove 41, an air vent 44 is opened in the inner wall of the sealing plate 43, a connecting plate 45 is fixedly connected to the outer side of the sealing plate 43, a snap-fit hole 46 is opened inside the connecting plate 45, a stabilizing column 47 is fixedly connected to the top of the outer shell 1, and a rubber limiting ring 48 is fixedly connected to the top of the stabilizing column 47.
[0017] It should be noted that: the outer shell 1 and the inner shell 2 are respectively installed on both sides of the door panel, the mounting groove 41 is opened in the inner wall of the inner shell 2, the mounting groove 41 is located on the outside of the intelligent component 3, the sealing plate 43 is adapted to the mounting groove 41, the air vent 44 is evenly distributed inside the sealing plate 43, and the connecting plate 45 is symmetrically distributed on the outside of the sealing plate 43.
[0018] Furthermore: the intelligent component 3 is located inside the sealing plate 43, the connecting plate 45 is tightly attached to the outside of the inner shell 2, the stabilizing posts 47 are symmetrically distributed on the outside of the mounting groove 41, and the stabilizing posts 47 are adapted to the snap-fit hole 46, the rubber limiting ring 48 is located on the outside of the connecting plate 45, and the diameter of the rubber limiting ring 48 is larger than the inner diameter of the snap-fit hole 46.
[0019] Specifically: The door lock is based on a separate design of outer shell 1 and inner shell 2, which are fixed to both sides of the door panel to form a two-way enveloping installation structure. The intelligent components 3 are specifically placed in the cavity between outer shell 1 and inner shell 2, providing them with a relatively enclosed protective space to prevent direct contact with the external environment.
[0020] As a further implementation of this solution, the existing heating mechanism 4 generates heat through heating wire 42 and dissipates heat through vent 44. A miniature temperature sensor is attached to the inner wall of the mounting groove 41 and electrically connected to the intelligent component 3 to monitor the temperature inside the mounting groove 41 in real time. When the temperature is below 5°C, the intelligent component 3 triggers the heating wire 42 to start. When the temperature rises to 15°C, the power supply to the heating wire 42 is automatically cut off to avoid overheating and power consumption, while also preventing damage to the intelligent component 3 due to excessive temperature.
[0021] Workflow: First, the door lock uses the outer shell 1 and inner shell 2 as the basic support structure. The two are installed on the inner and outer sides of the door panel respectively, forming a two-way protective frame. The smart components 3 are specially placed in the sealed cavity between the outer shell 1 and the inner shell 2, which can avoid direct contact with external dust and moisture, and also reduce the impact of external impacts, providing basic protection for the operation of subsequent smart functions. As a core component for coping with low-temperature environments, the heating mechanism 4 has a mounting slot 41 that is not randomly set, but precisely opened on the inner wall of the inner shell 2 and surrounds the outer side of the intelligent component 3. This layout allows the heat generated by heating to be applied more concentratedly to the intelligent component 3. A heating wire 42 is fixedly installed inside the mounting slot 41 to provide a heat source for temperature control. At the same time, a sealing plate 43 that is perfectly matched to the size of the mounting slot 41 covers the slot opening, which can isolate the heating wire 42 from the external environment. To ensure that the sealing plate 43 is installed firmly, a connecting plate 45 is symmetrically fixed on its outer side. The connecting plate 45 has a snap-fit hole 46 inside, which forms a precise fit with the stabilizing post 47 pre-fixed on the top of the outer shell 1. The diameter of the rubber limiting ring 48 at the top of the stabilizing post 47 is larger than the inner diameter of the snap-fit hole 46. When the snap-fit hole 46 is fitted into the stabilizing post 47, the rubber limiting ring 48 will be firmly locked on the outside of the connecting plate 45, completely preventing the sealing plate 43 from loosening or falling off during use. When the ambient temperature is too low, which may affect the performance of the smart component 3, the heating wire 42 will automatically start and generate heat. At this time, the air vents 44 evenly distributed on the inner wall of the sealing plate 43 play a key role in dispersing the heat generated by the heating wire 42 evenly around the smart component 3, forming a stable local constant temperature area. This prevents the smart component 3 from experiencing problems such as recognition delay or unlocking failure due to low temperature. Moreover, the heating wire 42 does not run continuously, but only starts when the temperature reaches the trigger threshold, effectively reducing power consumption and meeting the "low power consumption" design requirements of the door lock. In addition, the sealing plate 43, besides assisting in heat dissipation, can also prevent external dust and moisture from entering the mounting groove 41 and contacting the heating wire 42, preventing the heating wire 42 from short-circuiting or corroding. Together with the outer shell 1 and inner shell 2, which protect the overall structure, the smart component 3 can stably realize core smart functions such as fingerprint recognition, password verification, and remote unlocking.
[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A low-power smart door lock, comprising an outer shell (1) and an inner shell (2), characterized in that: A smart component (3) is provided between the outer shell (1) and the inner shell (2), and a heating mechanism (4) is provided inside the outer shell (1). The heating mechanism (4) includes a mounting groove (41), a heating wire (42) is installed inside the mounting groove (41), a sealing plate (43) is installed on the top of the mounting groove (41), an air vent (44) is opened in the inner wall of the sealing plate (43), a connecting plate (45) is fixedly connected to the outer side of the sealing plate (43), a snap-fit hole (46) is opened inside the connecting plate (45), a stabilizing column (47) is fixedly connected to the top of the outer shell (1), and a rubber limiting ring (48) is fixedly connected to the top of the stabilizing column (47).
2. The low-power smart door lock according to claim 1, characterized in that: The outer shell (1) and the inner shell (2) are respectively installed on both sides of the door panel, and the mounting groove (41) is opened in the inner wall of the inner shell (2).
3. The low-power smart door lock according to claim 1, characterized in that: The mounting groove (41) is located on the outside of the smart component (3), and the sealing plate (43) is adapted to the mounting groove (41).
4. A low-power smart door lock according to claim 1, characterized in that: The air vents (44) are evenly distributed inside the sealing plate (43), and the connecting plates (45) are symmetrically distributed on the outside of the sealing plate (43).
5. A low-power smart door lock according to claim 1, characterized in that: The intelligent component (3) is located inside the sealing plate (43), and the connecting plate (45) is attached to the outside of the inner shell (2).
6. A low-power smart door lock according to claim 1, characterized in that: The stabilizing posts (47) are symmetrically distributed on the outside of the mounting groove (41), and the stabilizing posts (47) are adapted to the snap-fit holes (46).
7. A low-power smart door lock according to claim 1, characterized in that: The rubber limiting ring (48) is located on the outside of the connecting plate (45), and the diameter of the rubber limiting ring (48) is larger than the inner diameter of the snap-fit hole (46).