A stand-alone antenna for controlling tire pressure
Patent Information
- Application Number
- CN202522278610.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-10-28
AI Technical Summary
[0002]以往胎压天线都是集成在BOX控制器里面或鲨鱼鳍天线里面，信号很弱严重影响胎压数据传递速度慢，信息延迟，而且容易信号干扰，导致胎压测试数据不准确，平凡出现报错，不显示等异常；与其他天线（其他GPS，5G，4G,WIFI天线）采用统一的控制系统，只能在汽车启动时提示胎压是否异常，无法进行胎压数值显示
[0010]本实用新型的优点是，设计合理，结构简单，胎压天线独立设置（独立于汽车的原有天线系统），辅以独立的控制系统，使汽车的胎压监控能实现实时显现，很大程度提高了准确率，从而降低了汽车因为胎压显示异常造成汽车故障率。
Smart Images
Figure CN224898453U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to tire pressure detection for automobiles, specifically to an independent antenna for controlling tire pressure. Background Technology
[0002] Previously, tire pressure antennas were integrated into the BOX controller or shark fin antenna, resulting in weak signals that severely affected the slow transmission speed of tire pressure data, caused information delays, and were prone to signal interference, leading to inaccurate tire pressure test data, frequent errors, and failure to display data. When using a unified control system with other antennas (other GPS, 5G, 4G, WIFI antennas), they could only indicate whether the tire pressure was abnormal when the car was started, and could not display the tire pressure value. Utility Model Content
[0003] In view of the above problems, this utility model proposes an independent antenna for controlling tire pressure.
[0004] The technical solution of this utility model: An independent antenna for controlling tire pressure, the antenna being a tire pressure antenna; the tire pressure antenna is installed inside the vehicle and is independent of the vehicle's original antenna system; the tire pressure antenna is connected to a FAKRA connector and a TOX controller, and the tire pressure antenna receives signals from the TOX controller through the FAKRA connector.
[0005] Further refining the above technical solution, the tire pressure antenna is a half-wave dipole antenna, which improves the signal reception rate of tire pressure antennas.
[0006] The above technical solution is further refined by providing a 173mm clearance around the edge of the tire pressure antenna. This effectively reduces signal interference.
[0007] Further refining the above technical solution, the main board of the tire pressure antenna integrates a matching circuit. This matching circuit includes an 8pF capacitor, a 33pF capacitor, a 39nH inductor, a 10kΩ resistor, and a digital signal processor. The 8pF and 33pF capacitors are connected in series, with the 8pF capacitor preceding the 33pF capacitor. The 8pF capacitor is connected to the antenna. The 39nH inductor is connected in parallel before the 8pF capacitor and grounded. The 10kΩ resistor is connected in parallel after the 33pF capacitor and grounded. The digital signal processor is connected in parallel after the 10kΩ resistor and grounded. The 8pF and 33pF capacitors primarily function as filters or signal couplers, selecting or transmitting radio frequency signals of specific frequencies and filtering out unwanted noise signals. The 39nH inductor is typically used for impedance matching or filtering in radio frequency circuits, helping to adjust the circuit's impedance characteristics so that the signal received by the antenna can be transmitted to subsequent circuits more efficiently. A 10kΩ resistor may be used for impedance matching, signal voltage division, or to provide a suitable input level for the subsequent DSP. It can also serve as a current limiter or load. DSP (Digital Signal Processor): As the core of signal processing, it receives the signal conditioned by the preceding circuitry and performs digital processing, such as demodulation and decoding.
[0008] Further refining the above technical solution, the outer shell of the tire pressure antenna is composed of an upper shell and a lower shell fastened together and connected by screws.
[0009] Further refining the above technical solution, the bottom of the tire pressure antenna is flat, and the bottom edge of the tire pressure antenna is raised. The raised edge is provided with a notch and several round holes. The tire pressure antenna is glued to the car roof, and its bottom is in contact with the car roof. When glued, the glue overflows into the notch and each round hole.
[0010] The advantages of this utility model are that it has a reasonable design, simple structure, and an independently set tire pressure antenna (independent of the car's original antenna system). With the help of an independent control system, the tire pressure monitoring of the car can be displayed in real time, which greatly improves the accuracy and reduces the car failure rate caused by abnormal tire pressure display. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the installation of an independent antenna for controlling tire pressure.
[0012] Figure 2 This is the matching circuit diagram integrated on the mainboard of the tire pressure antenna.
[0013] Figure 3 This is a schematic diagram of a tire pressure antenna exploding.
[0014] Figure 4 This is the front view of the tire pressure antenna.
[0015] Figure 5This is a top view of the tire pressure antenna.
[0016] The components in the diagram are: tire pressure antenna 1, 8pF capacitor 1-1, 33pF capacitor 1-2, 39nH inductor 1-3, 10kΩ resistor 1-4, digital signal processor 1-5, upper shell 1-6, lower shell 1-7, screw 1-8, edge protrusion 1-9, notch 1-10, round hole 1-11, car roof 2, shark fin 3, FAKRA connector 4, and TOX controller 5. Detailed Implementation
[0017] like Figure 1 As shown, an independent antenna for controlling tire pressure is described. The antenna is a tire pressure antenna. The tire pressure antenna 1 is glued to the car roof 2, with its bottom in contact with the car roof. The tire pressure antenna 1 is independent of the car's original antenna system (shark fin 3). The tire pressure antenna 1 is connected to the FAKRA connector 4 and the TOX controller 5. The tire pressure antenna 1 receives signals from the TOX controller 5 through the FAKRA connector 4. There is a 173mm clearance around the edge of the tire pressure antenna 1. like Figure 2 As shown, the tire pressure antenna 1 is a half-wave dipole antenna. The main board of the tire pressure antenna 1 integrates a matching circuit. The matching circuit includes an 8pF capacitor 1-1, a 33pF capacitor 1-2, a 39nH inductor 1-3, a 10kΩ resistor 1-4, and a digital signal processor 1-5. The 8pF capacitor 1-1 and the 33pF capacitor 1-2 are connected in series, with the 8pF capacitor 1-1 in front and the 33pF capacitor 1-2 behind. The 8pF capacitor 1-1 is connected to the antenna 1. The 39nH inductor 1-3 is connected in parallel before the 8pF capacitor 1-1 and grounded. The 10kΩ resistor 1-4 is connected in parallel after the 33pF capacitor 1-2 and grounded. The digital signal processor 1-5 is connected in parallel after the 10kΩ resistor 1-4 and grounded. like Figure 3 As shown, the outer shell of the tire pressure antenna 1 is composed of an upper shell 1-6 and a lower shell 1-7 fastened together and connected by screws 1-8.
[0018] like Figure 4-5 As shown, the bottom of the tire pressure antenna 1 is flat; the bottom edge of the tire pressure antenna 1 has a protrusion 1-9, and the protrusion 1-9 has a notch 1-10 and several round holes 1-11; when bonding, the glue overflows into the notch 1-10 and each round hole 1-11.
[0019] The above embodiments are only for illustrating the technical concept and features of the utility model, and are intended to enable those skilled in the art to understand the content of the utility model and implement it accordingly. They should not be construed as limiting the scope of protection of the utility model. All equivalent changes or modifications made in accordance with the spirit and essence of the utility model should be covered within the scope of protection of the utility model.
Claims
1. An independent antenna for controlling tire pressure, said antenna being a tire pressure antenna; characterized in that, The tire pressure antenna is installed inside the vehicle and is part of the vehicle's existing antenna system; the tire pressure antenna is connected to the FAKRA connector and the TOX controller, and the tire pressure antenna receives signals from the TOX controller through the FAKRA connector.
2. The independent antenna for controlling tire pressure according to claim 1, characterized in that, The tire pressure antenna is a half-wave dipole antenna.
3. The independent antenna for controlling tire pressure according to claim 1, characterized in that, The tire pressure antenna has a clearance of 173mm around its edge.
4. The independent antenna for controlling tire pressure according to claim 1, characterized in that, The main board of the tire pressure antenna integrates a matching circuit. The matching circuit includes an 8pF capacitor, a 33pF capacitor, a 39nH inductor, a 10kΩ resistor, and a digital signal processor. The 8pF and 33pF capacitors are connected in series, with the 8pF capacitor preceding the 33pF capacitor. The 8pF capacitor is connected to the antenna. The 39nH inductor is connected in parallel before the 8pF capacitor and grounded. The 10kΩ resistor is connected in parallel after the 33pF capacitor and grounded. The digital signal processor is connected in parallel after the 10kΩ resistor and grounded.
5. An independent antenna for controlling tire pressure according to claim 1, characterized in that, The outer shell of the tire pressure antenna is composed of an upper shell and a lower shell that are fastened together and connected by screws.
6. An independent antenna for controlling tire pressure according to claim 1, characterized in that, The bottom of the tire pressure antenna is flat, and the bottom edge of the tire pressure antenna is raised. The raised edge is provided with a notch and several round holes. The tire pressure antenna is glued to the car roof, and its bottom is in contact with the car roof. When glued, the glue overflows into the notch and each round hole.