A vehicle key with a positioning function
By introducing a combination of a snap-fit structure with a connecting slot and a heating wire in the heating chamber into the vehicle key, the problems of damaged sealing structure and reduced low-temperature activity are solved, achieving waterproofing of the key and stable battery power supply in low-temperature environments, thus improving the key's security and service life.
Patent Information
- Application Number
- CN202522555457.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-02
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-12-02
AI Technical Summary
The sealing structure of existing vehicle keys is damaged after the battery is replaced, resulting in reduced waterproof performance. Furthermore, in cold environments, the button battery's low-temperature activity reduces its discharge capacity, affecting the key's function and reliability.
The battery compartment employs a snap-fit fixing structure with elastic connecting buckles and connecting grooves, a waterproof structure with multi-level sealing rings and absorbent cotton plates, combined with an environmentally adaptable structure including a heating chamber, heating wire, vent pipe, and ceramic pad, to ensure a stable seal and low-temperature heating, prevent moisture from entering, and maintain battery activity.
It enhances the water resistance of the vehicle key, improves the sealing reliability of the battery compartment, extends its service life, and maintains battery performance in cold environments, ensuring power supply stability and adaptability.
Smart Images
Figure CN224682676U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle electronic device technology, and in particular to a vehicle key with positioning function. Background Technology
[0002] With the development of automotive electronics technology, vehicle keys are no longer just mechanical unlocking tools, but integrate multiple electronic functions such as remote control, keyless entry, and even positioning. These functions require continuous power support from button batteries.
[0003] However, button batteries have limited capacity and need to be replaced regularly. When replacing button batteries, traditional sealing structures, such as sealing rings, may shift or wear, leading to a decrease in sealing performance. Once the sealing structure of the vehicle key fails, external moisture or water will enter the battery compartment, causing corrosion and damage to the internal button batteries and circuit boards, seriously affecting the function and reliability of the vehicle key.
[0004] Furthermore, as an everyday item, vehicle keys need to function reliably under different climatic conditions. In particular, in cold environments, low temperatures reduce the chemical activity of the electrolyte inside the button battery, leading to a decrease in the battery's discharge capacity. This not only renders the key's electronic functions unusable but also significantly shortens the lifespan of the button battery, causing inconvenience and safety hazards for users.
[0005] Therefore, this utility model proposes a vehicle key with positioning function to overcome the shortcomings of the prior art. Utility Model Content
[0006] In view of the problems of existing vehicle keys with positioning function, such as damage to the sealing structure after battery replacement, reduced waterproof performance, and reduced discharge capacity of button batteries due to low temperature in cold environments, this utility model aims to provide a vehicle key with positioning function with an improved structure that can effectively solve the above problems.
[0007] This utility model provides a vehicle key with positioning function, including: a key shell, a battery compartment, a button battery, a sealed compartment cover, a battery sealing mechanism disposed at the battery compartment, and an environmental adaptation mechanism disposed on the key shell.
[0008] The battery sealing mechanism includes an elastic connecting buckle, a connecting groove, a positioning buckle, a filling groove, and an elastic contact piece; the environmental adaptation mechanism includes a heating chamber, a heating wire, and a vent pipe.
[0009] Furthermore, the sealing cover is fixed to the top of the battery compartment by the snap-fit of the elastic connecting buckle and the connecting groove. The positioning buckle elastically abuts against the side wall of the button battery to fix the position of the button battery. The elastic contact piece makes conductive contact with the bottom of the button battery. The end of the vent pipe away from the heating chamber extends into the battery compartment and communicates with the battery compartment. The heat generated by the heating wire enters the battery compartment through the vent pipe. The combined arrangement of the battery sealing mechanism and the environmental adaptation mechanism achieves a stable seal and low-temperature heating and insulation of the vehicle key battery compartment.
[0010] Preferably, the inner wall of the battery compartment has a stepped structure that is wider at the top and narrower at the bottom. The battery sealing mechanism further includes a placement groove formed at the bottom of the inner wall at a higher position of the battery compartment, and a sealing ring fixedly connected inside the placement groove. The bottom surface of the sealing compartment cover is tightly fitted with the sealing ring to achieve a seal.
[0011] Preferably, there are two placement slots, and the battery sealing mechanism further includes an absorbent cotton plate fixedly connected to the bottom of the inner wall of the battery compartment at a higher position and located between the two sealing rings. The absorbent cotton plate is arranged around the central axis of the battery compartment.
[0012] Preferably, the environmental adaptation mechanism further includes a sealing cover that is sealed to the top opening of the heating chamber, the sealing cover isolating the heating chamber from the external environment.
[0013] Preferably, the environmental adaptation mechanism further includes a ceramic pad fixedly connected to the bottom of the inner wall of the battery compartment. The ceramic pad is located between the button battery and the bottom wall of the battery compartment, and the ceramic pad is used to absorb heat during heating and dissipate heat after heating stops.
[0014] Preferably, the environmental adaptation mechanism further includes an exhaust port on the outer wall of the sealed compartment cover and a one-way exhaust valve fixedly connected to the inner wall of the exhaust port.
[0015] Preferably, the one-way exhaust valve is configured to open from the inside of the battery compartment to the outside, so as to exhaust the gas generated inside the battery compartment.
[0016] Preferably, there are multiple positioning buckles, which are arranged in a circumferential array, and each positioning buckle has an arc-shaped contact surface that matches the edge shape of the button battery.
[0017] This utility model has the following beneficial effects: 1. This utility model solves the problem of damaged sealing structure and reduced waterproof performance of vehicle keys after battery replacement by setting up a snap-fit fixing structure of elastic connecting buckle and connecting groove, multi-level sealing ring and water-absorbing cotton board in the battery compartment. It achieves the effect of enhancing the sealing reliability of the battery compartment and improving the water resistance of the vehicle key.
[0018] 2. This utility model solves the problem of reduced activity and decreased discharge capacity of button batteries in cold environments by setting a heating chamber, heating wire, vent pipe, ceramic pad, and one-way exhaust valve on the key shell, thus achieving the effects of maintaining battery performance, extending the service life of vehicle keys, and improving environmental adaptability.
[0019] 3. This utility model solves the problems of unstable button battery position, poor power supply contact, and incorrect installation of positive and negative terminals in the prior art by setting elastic positioning buckles and elastic contact pieces in the battery compartment. It achieves the effects of ensuring the accuracy of button battery installation position, improving power supply stability, and adapting to battery size deviations. Attached Figure Description
[0020] Figure 1 A perspective view of a vehicle key with positioning function proposed in this utility model; Figure 2 This is a cross-sectional view of a sealing compartment cover for a vehicle key with positioning function proposed in this utility model. Figure 3 This is a schematic diagram of the heating wire of a vehicle key with positioning function proposed in this utility model. Figure 4 A cross-sectional view of a button battery for a vehicle key with positioning function proposed in this utility model. Figure 5 This is a cross-sectional view of the key shell of a vehicle key with positioning function proposed in this utility model.
[0021] Legend: 1. Key shell; 2. Battery compartment; 3. Sealing cover; 4. Button battery; 5. Battery sealing mechanism; 501. Positioning buckle; 502. Filling groove; 503. Elastic contact piece; 504. Placement groove; 505. Sealing ring; 506. Absorbent cotton board; 507. Elastic connecting buckle; 508. Connecting groove; 6. Environmental adaptation mechanism; 601. Heating chamber; 602. Sealing cover; 603. Heating wire; 604. Vent pipe; 605. Exhaust hole; 606. One-way exhaust valve; 607. Ceramic pad. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0023] Example: Please refer to Figures 1 to 5 This utility model provides a vehicle key with a positioning function, which aims to solve the problems in the prior art where the sealing structure of the vehicle key fails after the battery is replaced, resulting in water ingress and damage, and the button battery 4 experiences reduced discharge capacity due to decreased low-temperature activity in cold environments.
[0024] Please refer to Figures 1 to 3 A vehicle key with positioning function includes a key shell 1, a battery compartment 2 opened at the top of the key shell 1, a button battery 4 disposed inside the battery compartment 2, a sealing cover 3 covering the top of the battery compartment 2, a battery sealing mechanism 5 disposed at the battery compartment 2, and an environmental adaptation mechanism 6 disposed on the key shell 1. The battery sealing mechanism 5 is used to ensure the sealing of the battery compartment 2 and fix the button battery 4. The environmental adaptation mechanism 6 is used to adjust the temperature inside the battery compartment 2 to adapt to cold environments. The battery sealing mechanism 5 includes an elastic connecting buckle 507 fixedly connected to the top of the inner wall of the battery compartment 2 and a connecting groove 508 opened on the outer wall of the sealing cover 3. The sealing cover 3 is fixed to the top of the battery compartment 2 by the snap-fit cooperation between the elastic connecting buckle 507 and the connecting groove 508. The elastic deformation capability of the elastic connecting buckle 507 allows the sealing cover 3 to be firmly fastened to the opening of the battery compartment 2. The battery sealing mechanism 5 also includes a fixed connection to the rear side of the bottom of the inner wall of the battery compartment 2. The positioning buckle 501 of the area and the filling groove 502 opened at the bottom of the inner wall of the battery compartment 2 directly below the button battery 4, the battery sealing mechanism 5 also includes an elastic contact piece 503 fixedly connected to the bottom of the inner wall of the filling groove 502. The positioning buckle 501 elastically abuts against the side wall of the button battery 4 to fix the position of the button battery 4. The positioning buckle 501 uses elastic restoring force to clamp the button battery 4. The elastic contact piece 503 makes conductive contact with the bottom of the button battery 4. The elastic contact piece 503 uses its own elasticity to push the button battery 4 upward to maintain a continuous circuit connection. The environmental adaptation mechanism 6 includes a heating chamber 601 opened at the top rear side of the key shell 1 and a heating wire 603 fixedly connected to the inner wall of the heating chamber 601. The bottom of the inner wall of the heating chamber 601 is connected to a vent pipe 604. The end of the vent pipe 604 away from the heating chamber 601 extends into the battery compartment 2 and communicates with the battery compartment 2. The heat generated by the heating wire 603 enters the battery compartment 2 through the vent pipe 604.
[0025] Please refer to Figure 2 and Figure 5 The inner wall of the battery compartment 2 has a stepped structure that is wider at the top and narrower at the bottom. Two placement grooves 504 are opened at the bottom of the inner wall at the higher part of the battery compartment 2. A sealing ring 505 is fixedly connected inside each placement groove 504. The bottom surface of the sealing cover 3 is tightly fitted with the sealing ring 505. Waterproof sealing is achieved by longitudinally pressing the sealing ring 505 with the sealing cover 3. A water-absorbing cotton board 506 is fixedly connected at the bottom of the inner wall at the higher part of the battery compartment 2 and between the two sealing rings 505. The water-absorbing cotton board 506 is arranged around the central axis of the battery compartment 2. The water-absorbing cotton board 506 serves as a second line of defense to absorb infiltrated moisture. In addition, a ceramic pad 607 is fixedly connected at the bottom of the inner wall of the battery compartment 2. The ceramic pad 607 is located between the button battery 4 and the bottom wall of the battery compartment 2. The ceramic pad 607 is used to absorb heat during heating and release heat after heating stops to maintain the working temperature of the button battery 4.
[0026] As a preferred embodiment, to ensure a secure installation of the button battery 4 and correct positive and negative contact, please refer to... Figure 4 The number of positioning buckles 501 is preferably multiple, and the multiple positioning buckles 501 are distributed in a circumferential array. The positioning buckles 501 have an arc-shaped contact surface that matches the edge shape of the button battery 4. The arc-shaped contact surface is used to increase the contact area with the button battery 4, thereby improving the fixing stability.
[0027] As another preferred embodiment, in order to achieve air pressure regulation and moisture removal inside the battery compartment 2, please refer to... Figure 2 and Figure 5 The environmental adaptation mechanism 6 also includes an exhaust port 605 opened on the outer wall of the sealed compartment cover 3, and a one-way exhaust valve 606 fixedly connected to the inner wall of the exhaust port 605. The one-way exhaust valve 606 is configured to open from the inside of the battery compartment 2 to the outside. The one-way exhaust valve 606 uses the pressure difference between the inside and outside to achieve automatic opening and closing, ensuring that water vapor can be discharged while external moisture cannot enter.
[0028] In another preferred embodiment, to seal the heating chamber 601 to prevent heat loss, please refer to... Figure 1 and Figure 3 The environmental adaptation mechanism 6 also includes a sealing cover 602 that is sealed to the top opening of the heating chamber 601. The sealing cover 602 isolates the heating chamber 601 from the external environment by ultrasonic welding or bonding.
[0029] As another preferred embodiment, to prevent gas generated by the button battery 4 during heating or discharging from accumulating in the sealed compartment, please refer to... Figure 4The elastic contact piece 503, which is fixedly connected to the bottom of the inner wall of the filling groove 502 directly below the button battery 4, is preferably a spring piece formed by stamping with phosphor bronze material with high conductivity. The elastic contact piece 503 has good elastic fatigue life and reliable conductive contact performance.
[0030] As another preferred embodiment, in order to achieve effective cooperation between the battery sealing mechanism 5 and the environmental adaptation mechanism 6, please refer to... Figure 1 The sealing ring 505 of the battery sealing mechanism 5 is preferably made of elastic materials such as silicone rubber or fluororubber that are resistant to low temperature and aging. In the environmental adaptation mechanism 6, the ceramic pad 607 used for heat storage is preferably made of alumina ceramic material with a moderate thermal conductivity to ensure the absorption and slow release of heat.
[0031] Working principle: The vehicle key is primarily powered by a button battery 4 fixed to the inner wall of the battery compartment 2 at the top of the key housing 1. Multiple elastic connecting buckles 507, fixedly connected to the top of the inner wall of the battery compartment 2, engage with multiple connecting slots 508 on the outer wall of the sealing cover 3, thereby securing the sealing cover 3. Multiple elastic positioning buckles 501, fixedly connected to the rear part of the bottom of the inner wall of the battery compartment 2, can fix the button battery 4 in position when it slides into the middle of the positioning buckles 501. Simultaneously, the special shape of the positioning buckles 501 ensures that the positive and negative terminals of the button battery 4 are correctly installed. The button battery 4 is powered by multiple elastic connecting buckles 507 at the bottom of the inner wall of the filling slot 502 directly below. The contact piece 503 makes conductive contact with the circuit board. The elastic contact piece 503 uses its own elasticity to ensure power supply stability and adapt to slight size deviations. The sealing ring 505 is fixedly connected in the two mounting grooves 504 opened at the bottom of the inner wall at the higher part of the battery compartment 2. After the button battery 4 is replaced and the sealing compartment cover 3 is reinstalled, the sealing is reset by the rebound of the sealing ring 505 to prevent the sealing ring 505 from falling off. The water-absorbing cotton plate 506 between the two sealing rings 505 can absorb water that breaks through the outer sealing ring 505 to prevent external water from damaging the button battery 4. Through the cooperation of the various components of the battery sealing mechanism 5, the security of the vehicle key with positioning function is improved. When using a vehicle key with positioning function in cold environments, a heating wire 603 is fixedly connected to the inner wall of the heating chamber 601 opened on the top rear side of the key shell 1. When the heating wire 603 is activated, the temperature inside the heating chamber 601 rises. The vent pipe 604 connected to the bottom of the inner wall of the heating chamber 601 guides the hot air generated by the heating wire 603 into the connected battery compartment 2, heating the button battery 4 and the components inside the battery compartment 2. This prevents the button battery 4 from losing its discharge capacity due to reduced activity at low temperatures. A ceramic pad is fixedly connected to the bottom of the inner wall of the battery compartment 2. The plate 607 can absorb heat when the battery compartment 2 heats up. When the heating wire 603 is turned off, the ceramic plate 607 can slowly dissipate heat, prolonging the heat retention time. Due to the one-way exhaust valve 606 fixedly connected to the inner wall of the exhaust hole 605 opened on the outer wall of the sealed compartment cover 3, the water vapor generated in the battery compartment 2 due to the temperature difference can be discharged through the one-way exhaust valve 606. The one-way exhaust valve 606 also prevents external water vapor from entering. Through the cooperation of the various components of the environmental adaptation mechanism 6, the adaptability of the vehicle key with positioning function to use in cold weather is improved.
Claims
1. A vehicle key with positioning function, comprising: Key shell (1), battery compartment (2) opened on the top of the key shell (1), button battery (4) disposed inside the battery compartment (2) and sealing cover (3) covering the top of the battery compartment (2). The vehicle key is characterized in that it further includes a battery sealing mechanism (5) disposed in the battery compartment (2) and an environmental adaptation mechanism (6) disposed on the key shell (1). The battery sealing mechanism (5) includes an elastic connecting buckle (507) fixedly connected to the top of the inner wall of the battery compartment (2), a connecting groove (508) opened on the outer wall of the sealing compartment cover (3), a positioning buckle (501) fixedly connected to the rear side area of the bottom of the inner wall of the battery compartment (2), and a positioning buckle (501) opened directly below the button battery (4). The battery compartment (2) has a filling groove (502) at the bottom of the inner wall and an elastic contact piece (503) fixedly connected to the bottom of the inner wall of the filling groove (502). The sealing cover (3) is fixed above the battery compartment (2) by the snap-fit of the elastic connecting buckle (507) and the connecting groove (508). The positioning buckle (501) elastically abuts against the side wall of the button battery (4) to fix the position of the button battery (4). The elastic contact piece (503) makes conductive contact with the bottom of the button battery (4).
2. A vehicle key with positioning function according to claim 1, characterized in that, The environmental adaptation mechanism (6) includes a heating chamber (601) located on the top rear side of the key shell (1) and a heating wire (603) fixedly connected to the inner wall of the heating chamber (601). A vent pipe (604) is connected to the bottom of the inner wall of the heating chamber (601). One end of the vent pipe (604) away from the heating chamber (601) extends into the battery compartment (2) and communicates with the battery compartment (2). The heat generated by the heating wire (603) enters the battery compartment (2) through the vent pipe (604).
3. A vehicle key with positioning function according to claim 1, characterized in that, The inner wall of the battery compartment (2) has a stepped structure that is wider at the top and narrower at the bottom. The battery sealing mechanism (5) also includes a placement groove (504) opened at the bottom of the inner wall at a higher position of the battery compartment (2) and a sealing ring (505) fixedly connected inside the placement groove (504). The bottom surface of the sealing compartment cover (3) is tightly fitted with the sealing ring (505) to achieve a seal.
4. A vehicle key with positioning function according to claim 3, characterized in that, The number of the placement slots (504) is two, and the battery sealing mechanism (5) also includes a water-absorbing cotton plate (506) fixedly connected to the bottom of the inner wall of the battery compartment (2) at a higher position and located between the two sealing rings (505). The water-absorbing cotton plate (506) is arranged around the central axis of the battery compartment (2).
5. A vehicle key with positioning function according to claim 2, characterized in that, The environmental adaptation mechanism (6) further includes a sealing cover (602) that is sealed to the top opening of the heating chamber (601), the sealing cover (602) isolating the heating chamber (601) from the external environment.
6. A vehicle key with positioning function according to claim 2, characterized in that, The environmental adaptation mechanism (6) further includes a ceramic pad (607) fixedly connected to the bottom of the inner wall of the battery compartment (2). The ceramic pad (607) is located between the button battery (4) and the bottom wall of the battery compartment (2), and the ceramic pad (607) is used to absorb heat when the heating wire (603) is working and to dissipate heat after it stops working.
7. A vehicle key with positioning function according to claim 2, characterized in that, The environmental adaptation mechanism (6) further includes an exhaust port (605) opened on the outer wall of the sealed compartment cover (3) and a one-way exhaust valve (606) fixedly connected to the inner wall of the exhaust port (605).
8. A vehicle key with positioning function according to claim 7, characterized in that, The one-way exhaust valve (606) is configured to open from the inside of the battery compartment (2) to the outside, so as to exhaust the gas generated inside the battery compartment (2).
9. A vehicle key with positioning function according to claim 1, characterized in that, The number of positioning buckles (501) is multiple, and the multiple positioning buckles (501) are arranged in a circumferential array. The positioning buckles (501) have an arc-shaped contact surface that is adapted to the edge shape of the button battery (4).