Intelligent key with emergency unlocking function
By introducing a structure of buckle, barb groove and unlocking component into the smart key, emergency unlocking is achieved, and the battery cover is automatically popped out by the eject module, which solves the problems of smart key not being able to open the door due to insufficient power and the complexity of battery replacement, thus improving convenience and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JIECHENG LOCOMOTIVE PARTS CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-04-21
AI Technical Summary
Existing smart keys cannot unlock car doors properly when the battery is low, and replacing the battery is a complicated process.
A smart key with an emergency unlocking function was designed. Emergency unlocking is achieved through the structure of a buckle, a barb groove and an unlocking component. The battery cover is automatically popped out through the ejection module, simplifying the battery replacement process.
The ability to unlock the car door in an emergency when the battery is dead simplifies the battery replacement process and improves the convenience and reliability of the smart key.
Smart Images

Figure CN224149322U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive key technology, and in particular to a smart key with an emergency unlocking function. Background Technology
[0002] A car key is a device used to start a car engine and control the locking and unlocking of car doors. With the advancement of technology, the types and functions of car keys have become increasingly diverse. Modern car keys are not only mechanical devices for ignition, but also incorporate electronic technology to enhance security and convenience.
[0003] For example, the Chinese utility model car key with publication number CN222140942U has a window breaker and a first groove for storing a fragrance device in the main body of the key shell. The window breaker can break windows to rescue people in an emergency, and the first groove can store the fragrance device, making the car key multifunctional and fun. However, such a structure still has the following significant defects:
[0004] 1. Currently, smart keys on the market typically use two unlocking methods: one is pressing a function button on the smart key, and the other is holding the smart key close to the sensor area of the vehicle body. However, these smart keys have obvious limitations, namely, they cannot unlock the car door when the battery is low or completely dead;
[0005] 2. When replacing the battery of the smart key, tools are needed to separate the upper and lower shells of the smart key before the battery can be replaced, making the battery replacement operation of the remote key relatively complicated. Summary of the Invention
[0006] This utility model aims to solve one of the technical problems existing in the prior art.
[0007] This application provides a smart key with an emergency unlocking function, including a housing with a built-in Bluetooth chip; it also includes a key head and a key bar fixed at the bottom of the key head. The top of the housing is provided with a mechanical keyhole that slides with the key bar. The end of the key head that contacts the housing is provided with a first slide groove and a second slide groove. A buckle that extends into the second slide groove is fixed in the first slide groove. An unlocking component that engages with the buckle is slidably installed in the second slide groove. By pushing the unlocking component, the unlocking component can be separated from the buckle, thereby releasing the lock on the key head.
[0008] Furthermore, the unlocking component includes a sliding block, a barb block, a push block, and a return spring. The buckle is provided with a barb groove. A sliding block extending into the first sliding groove is slidably installed in the second sliding groove. A barb block inserted into the barb groove is fixed at one end of the sliding block facing the buckle. One end of the sliding block extends out of the housing and is fixedly connected to the push block. One end of the return spring is pressed and fixed against the side wall of the second sliding groove, and the other end is pressed and fixed against the sliding block.
[0009] Furthermore, the key head has a through-hole connection hole.
[0010] Furthermore, the push block is equipped with anti-slip texture.
[0011] Furthermore, the housing is provided with a mounting slot, in which a battery is installed. The battery is electrically connected to the Bluetooth chip. A rotating shaft is fixed in the mounting slot, on which a battery cover is rotatably mounted. The battery cover can be automatically opened by the ejection module.
[0012] Furthermore, the ejection module includes a rotating disk, a first magnetic piece, a second magnetic piece, and magnetic pillars. The housing is provided with a disk groove, and a rotating shaft is fixedly installed in the disk groove. The rotating disk is rotatably mounted on the rotating shaft. The rotating disk extends out of the housing. Two first magnetic pieces and two second magnetic pieces are fixedly installed on the rotating disk. Two magnetic pillars are fixedly installed on the battery cover. By pushing the rotating disk to extend out of the housing, the rotating disk can be rotated, thereby making the two first magnetic pieces / two second magnetic pieces correspond to the positions of the two magnetic pillars respectively.
[0013] Furthermore, a sliding cylinder is eccentrically provided on the rotating disk, and an arc groove is provided on the housing to slide in conjunction with the sliding cylinder, with the center angle of the arc groove being 90 degrees.
[0014] Furthermore, the opposing surfaces of the first magnet plate and the magnet pillar have opposite polarities, while the opposing surfaces of the second magnet plate and the magnet pillar have the same polarity.
[0015] Furthermore, the two first magnet plates and the two second magnet plates are arranged in an alternating ring pattern about the axis of the rotating disk.
[0016] The beneficial effects of this utility model are as follows:
[0017] 1. By using a buckle, barb groove and unlocking mechanism, when the battery is dead, the key head and key bar can be removed by moving the push block, thus achieving emergency unlocking and solving the problem that traditional smart keys cannot open the door when the battery is dead;
[0018] 2. By using the ejection module, the battery cover can be automatically popped out by rotating the disc to extend the part of the housing, making the operation convenient and reliable. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of a smart key with emergency unlocking function in an embodiment of this application;
[0020] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure along the AA direction;
[0021] Figure 3 for Figure 2Enlarged structural diagram at point B;
[0022] Figure 4 This is a schematic diagram of the structure of the sliding block, barb block, pushing block and anti-slip texture in the embodiments of this application;
[0023] Figure 5 for Figure 2 Enlarged structural diagram at point C;
[0024] Figure 6 This is a schematic diagram illustrating the connection principle between the sliding cylinder and the arc groove in an embodiment of this application.
[0025] Figure 7 for Figure 1 A schematic diagram of the cross-sectional structure along the DD direction;
[0026] Figure 8 for Figure 7 A magnified structural diagram at point E in the middle.
[0027] Figure Labels
[0028] 1-Housing, 11-Mechanical keyhole, 12-Second slide groove, 21-Key head, 211-First slide groove, 212-Snap fastener, 213-Barb groove, 22-Key bar, 23-Unlocking component, 231-Sliding block, 232-Barb block, 233-Push block, 234-Reset spring, 235-Anti-slip texture, 24-Connecting hole, 31-Mounting groove, 32-Battery, 33-Rotating shaft, 34-Battery cover, 35-Ejection module, 351-Rotating disc, 352-First magnet piece, 353-Second magnet piece, 354-Magnetic column, 355-Disc groove, 356-Sliding cylinder, 357-Arc groove. Detailed Implementation
[0029] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0030] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0031] The following description, in conjunction with the accompanying drawings, details a smart key with emergency unlocking function provided in this application through specific embodiments and application scenarios.
[0032] Example 1:
[0033] like Figures 1 to 4 As shown, this application embodiment provides a smart key with an emergency unlocking function, including a housing 1 with a built-in Bluetooth chip; it also includes a key head 21 and a key bar 22 fixed at the bottom of the key head 21. The top of the housing 1 is provided with a mechanical keyhole 11 that slides with the key bar 22. The end of the key head 21 that contacts the housing 1 is provided with a first groove 211 and a second groove 12. A buckle 212 that extends into the second groove 12 is fixed in the first groove 211. An unlocking component 23 that engages with the buckle 212 is slidably installed in the second groove 12. By pushing the unlocking component 23, the unlocking component 23 can be separated from the buckle 212, thereby releasing the lock on the key head 21.
[0034] Furthermore, the unlocking component 23 includes a sliding block 231, a barb block 232, a pushing block 233, and a return spring 234. The buckle 212 is provided with a barb groove 213. The sliding block 231, which extends into the first sliding groove 211, is slidably installed in the second sliding groove 12. The end of the sliding block 231 facing the buckle 212 is fixedly provided with a barb block 232 inserted into the barb groove 213. One end of the sliding block 231 extends out of the housing 1 and is fixedly connected to the pushing block 233. One end of the return spring 234 is pressed and fixed on the side wall of the second sliding groove 12, and the other end is pressed and fixed on the sliding block 231.
[0035] Furthermore, the key head 21 is provided with a through connection hole 24.
[0036] Furthermore, the push block 233 is provided with anti-slip texture 235.
[0037] In this embodiment of the application, due to the aforementioned structure, when the battery 32 has sufficient power, the smart key can be brought close to the sensing area of the vehicle body to unlock the vehicle. When the battery 32 has insufficient power, the push block 233 can be moved, causing the push block 233 and the sliding block 231 to slide synchronously and compress the return spring 234. The barb block 232, which was originally inserted into the barb slot 213, will slide synchronously with the sliding block 231, thereby separating the latch 212 from the barb block 232. At this time, the key head 21 can be pulled. Remove the key bar 22 from the mechanical keyhole 11 to meet emergency use needs. After use, reinsert the key bar 22 into the mechanical keyhole 11. At this time, the buckle 212 extends into the second slide groove 12, and the sliding block 231 partially extends into the first slide groove 211. Release the push block 233. Under the force of the reset spring 234, push the second slider, push block 233 and barb block 232 to reset synchronously, so that the barb block 232 is reinserted into the barb groove, and the key head 21 is locked again.
[0038] The key head 21 has a through connection hole 24, through which the user can thread a lanyard, making it easier to carry the smart key on a daily basis.
[0039] The push block 233 is provided with anti-slip texture 235, which can effectively prevent the hand from slipping during the flicking process.
[0040] Example 2:
[0041] like Figures 5 to 8 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the housing 1 is provided with a mounting groove 31, in which a battery 32 is installed. The battery 32 is electrically connected to the Bluetooth chip. A rotating shaft 33 is fixed in the mounting groove 31, and a battery cover 34 is rotatably mounted on the rotating shaft 33. The battery cover 34 can be automatically opened by the ejection module 35.
[0042] Furthermore, the ejection module 35 includes a rotating disk 351, a first magnet 352, a second magnet 353, and a magnet post 354. The housing 1 is provided with a disk groove 355, and a rotating shaft is fixedly installed in the disk groove 355. The rotating disk 351 is rotatably mounted on the rotating shaft. The rotating disk 351 extends out of the housing 1. Two first magnets 352 and two second magnets 353 are fixedly installed on the rotating disk 351. Two magnet posts 354 are fixedly installed on the battery cover 34. By pushing the rotating disk 351 to extend out of the housing 1, the rotating disk 351 can be rotated, thereby making the two first magnets 352 / two second magnets 353 correspond to the positions of the two magnet posts 354 respectively.
[0043] Furthermore, a sliding cylinder 356 is eccentrically provided on the rotating disk 351, and an arc groove 357 is provided on the housing 1 to slide in cooperation with the sliding cylinder 356. The center angle of the arc groove 357 is 90 degrees.
[0044] Furthermore, the opposing polarities of the first magnet 352 and the magnet post 354 are opposite, while the opposing polarities of the second magnet 353 and the magnet post 354 are the same.
[0045] Furthermore, the two first magnet pieces 352 and the two second magnet pieces 353 are arranged in an alternating ring about the axis of the rotating disk 351.
[0046] In this embodiment of the application, due to the above-described structure, in the initial state, the connecting cylinder is located at the leftmost end of the arc groove 357, and the positions of the two first magnet pieces 352 correspond to the positions of the two second magnet posts 354 respectively. The battery cover 34 can be fixed by the attraction between the first magnet pieces 352 and the magnet posts 354.
[0047] When it is necessary to open the battery cover 34 to replace the battery 32, the rotating block disk extends out of the housing 1 and rotates the rotating disk 351 clockwise. The rotating disk 351 drives the sliding cylinder 356 to rotate synchronously until the sliding cylinder 356 slides to the rightmost end of the arc groove 357. At this time, the two second magnet pieces 353 correspond to the positions of the two magnet pillars 354 respectively. Using the repulsive force between the second magnet pieces 353 and the magnet pillars 354, one end of the battery cover 34 can be automatically popped out. After the battery cover 34 pops out, it can be quickly opened.
[0048] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0049] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A smart key with an emergency unlocking function, comprising a housing with a built-in Bluetooth chip, characterized in that, It also includes a key head and a key bar fixed at the bottom of the key head. The top of the housing is provided with a mechanical key hole that slides with the key bar. The end of the key head that contacts the housing is provided with a first slide groove and a second slide groove. A buckle that extends into the second slide groove is fixed in the first slide groove. An unlocking component that engages with the buckle is slidably installed in the second slide groove. By pushing the unlocking component, the unlocking component can be separated from the buckle, thereby releasing the lock on the key head.
2. The smart key with an emergency unlocking function according to claim 1, characterized in that, The unlocking mechanism includes a sliding block, a barb block, a push block, and a return spring. The buckle is provided with a barb groove. A sliding block that extends into the first sliding groove is slidably installed in the second sliding groove. A barb block that is inserted into the barb groove is fixed at one end of the sliding block facing the buckle. One end of the sliding block extends out of the housing and is fixedly connected to the push block. One end of the return spring is pressed and fixed against the side wall of the second sliding groove, and the other end is pressed and fixed against the sliding block.
3. The smart key with an emergency unlocking function according to claim 1, characterized in that, The key head has a through-hole connection hole.
4. The smart key with an emergency unlocking function according to claim 2, characterized in that, The push block has anti-slip texture.
5. The smart key with an emergency unlocking function according to claim 1, characterized in that, The housing has a mounting slot, in which a battery is installed. The battery is electrically connected to a Bluetooth chip. A rotating shaft is fixed in the mounting slot, on which a battery cover is rotatably mounted. The battery cover can be automatically opened by an ejector module.
6. The smart key with an emergency unlocking function according to claim 5, characterized in that, The ejection module includes a rotating disk, a first magnetic piece, a second magnetic piece, and magnetic pillars. The housing has a disk groove, and a rotating shaft is fixed in the disk groove. The rotating disk is rotatably mounted on the rotating shaft. The rotating disk extends out of the housing. Two first magnetic pieces and two second magnetic pieces are fixed on the rotating disk. Two magnetic pillars are fixed on the battery cover. By pushing the rotating disk to extend out of the housing, the rotating disk can be rotated, thereby aligning the two first magnetic pieces / two second magnetic pieces with the positions of the two magnetic pillars respectively.
7. The smart key with an emergency unlocking function according to claim 6, characterized in that, A sliding cylinder is eccentrically mounted on the rotating disk, and an arc groove is provided on the housing to slide in conjunction with the sliding cylinder. The center angle of the arc groove is 90 degrees.
8. The smart key with an emergency unlocking function according to claim 6, characterized in that, The opposing sides of the first magnet plate and the magnet pillar have opposite polarities, while the opposing sides of the second magnet plate and the magnet pillar have the same polarity.
9. The smart key with emergency unlocking function according to claim 6, characterized in that, The two first magnet pieces and the two second magnet pieces are arranged in an alternating ring about the axis of the rotating disk.
Citation Information
Patent Citations
Automobile key
CN222140942U