A new type of external automobile tire pressure monitor

Abstract

This utility model relates to the field of automotive tire pressure monitoring and discloses a novel external automotive tire pressure monitoring device, including a connecting part, a protective cover, a PCB board, a first mounting hole, a through-hole, a second mounting hole, and a valve thread groove. The upper end of the connecting part is threadedly connected to the protective cover, and the upper surface of the connecting part is provided with the PCB board. Multiple first mounting holes are formed around the upper surface of the connecting part, and a through-hole is formed in the center of the upper surface of the connecting part. Multiple second mounting holes are formed around the upper surface of the PCB board. In this utility model, the device eliminates built-in hardware and uses a one-time injection-molded all-plastic connecting part, simplifying the process, reducing costs, and avoiding interference from hardware components with the high-frequency antenna. The antenna consists of PCB board circuitry and a metal ring in the center of its upper surface. Precise assembly is achieved by combining the one-to-one correspondence and circular distribution of the first and second mounting holes, improving antenna installation consistency. The metal ring enhances signal gain, ensures stable transmission, and improves practicality.

Description

Technical Field

[0001] This utility model relates to the field of automotive tire pressure monitoring, and in particular to a novel external automotive tire pressure monitoring device. Background Technology

[0002] The existing high-frequency transmitting antenna of the external sensor of the car tire pressure monitoring system is connected to the tire valve through the built-in hardware of the sensor as the transmitting antenna.

[0003] The internal hardware components of sensors made of different materials and sizes directly affect the transmission effect and overall performance of high-frequency signals. Different specifications and types of automotive air valves will also have an adverse effect on the transmission effect of high-frequency signals and the performance of the equipment. The internal hardware components of external sensors will significantly increase the overall weight of the sensor. This extra weight will put a greater burden on the original automotive air valves, thereby increasing the risk of damage to the original automotive air valves. In addition, the design of external sensors with additional hardware components will also increase the operational difficulty of subsequent injection molding processes, and will further increase the overall cost of the production process.

[0004] Therefore, those skilled in the art have provided a novel external tire pressure monitoring device for automobiles to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies and provide a novel external tire pressure monitoring device. By eliminating built-in hardware and replacing it with a one-time injection-molded all-plastic connector, the production process is greatly simplified, and material and processing costs are significantly reduced. At the same time, it completely avoids interference from hardware on the signal transmission of the high-frequency antenna built into the PCB board. The high-frequency antenna is composed of the PCB board's own circuitry and the iron ring in the middle of its upper surface. An interference-free environment can fully guarantee its signal transmission performance, further improving the practicality of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A novel external tire pressure monitoring device for automobiles includes a connecting part, a protective cover, a PCB board, a first mounting hole, a through opening, a second mounting hole, and a valve thread groove. The upper end of the connecting part is threaded with the protective cover, and the upper end face of the connecting part is provided with the PCB board. Multiple first mounting holes are opened around the upper end face of the connecting part, and a through opening is opened in the middle of the upper end face of the connecting part. Multiple second mounting holes are opened around the upper end face of the PCB board, and a valve thread groove is opened in the middle of the lower end face of the connecting part. Through the above technical solution, the device simplifies the production process and significantly reduces material and processing costs by eliminating built-in hardware and replacing it with a one-time injection-molded all-plastic connector. Simultaneously, it completely avoids interference from hardware on the signal transmission of the high-frequency antenna built into the PCB board. This high-frequency antenna, composed of the PCB board's own circuitry and a central iron ring on its upper surface, is protected by an interference-free environment, ensuring its signal transmission performance and further improving the device's practicality. By embedding the high-frequency antenna, composed of the PCB board's circuitry and the central iron ring, into the PCB board and utilizing the one-to-one correspondence between the first and second mounting holes and the uniformly distributed ring design, the device achieves precise and balanced assembly of the PCB board and the connector. This not only significantly improves the consistency of the high-frequency antenna installation but also enhances signal gain with the help of the iron ring, ensuring that signal transmission stability is unaffected by assembly errors and achieving higher transmission efficiency, thus improving the device's practicality.

[0007] Furthermore, the PCB board has a built-in high-frequency antenna, and the high-frequency antenna is composed of the circuit on the PCB board and the iron ring set in the middle of the upper end face. The first mounting hole corresponds one-to-one with the second mounting hole opened on the PCB board. Through the above technical solution, on the one hand, the circuitry on the PCB board and the iron ring in the middle of the upper surface are used to form a high-frequency antenna. The iron ring can help enhance the antenna signal gain, optimize the transmission and reception efficiency of high-frequency signals, and improve the signal transmission distance and stability. On the other hand, by utilizing the one-to-one correspondence between the first and second mounting holes, precise alignment and assembly of the PCB board and the connecting part can be achieved, avoiding the high-frequency antenna position shift caused by assembly deviation, ensuring that the antenna is always in the optimal working position, further guaranteeing stable signal transmission performance, while reducing the hole adjustment time during the assembly process and improving the overall assembly efficiency.

[0008] Furthermore, the through-hole passes through the middle of the upper and lower end faces of the connecting part and communicates with the middle of the outer wall of the valve thread groove, and the valve thread groove forms a threaded connection with the valve nozzle on the car tire. Through the above technical solution, the valve thread groove can be stably adapted and connected to the tire valves of different models, ensuring that the monitor is not easy to fall off after installation. The through port can provide a smooth air passage for the tire pressure sensor, enabling the sensor to sense the tire internal pressure in real time and accurately, avoiding the deviation of monitoring data caused by air passage blockage.

[0009] Furthermore, when the protective cover is fastened to the upper end of the connecting part, it completely covers the PCB board, and the inner wall of the protective cover maintains a preset gap with the upper surface of the PCB board, so as not to directly contact the surface of the PCB board. Through the above technical solutions, the protective cover can completely isolate external environmental interference such as dust, rain, and stone collisions, effectively protecting the PCB board. At the same time, the preset gap can prevent the protective cover from directly rubbing or squeezing the components on the PCB board surface, preventing component damage and ensuring the stability of the PCB board circuit function.

[0010] Furthermore, multiple first mounting holes are evenly distributed in a ring on the upper end face of the connecting part with the through opening as the center. The arc distance between two adjacent first mounting holes is equal, and the diameter of the first mounting hole is the same as the diameter of the second mounting hole. The above technical solution ensures that when screws and other connectors fix the PCB board through the corresponding mounting holes, the force is evenly distributed around the PCB board, avoiding bending and deformation of the PCB board due to uneven force, further improving the consistency and firmness of PCB board installation, and ensuring that the high-frequency antenna signal transmission is not affected by structural deformation.

[0011] Furthermore, the groove edge of the valve thread groove is kept at the same distance from the outer periphery of the lower end face of the connecting part, and the inner wall of the valve thread groove and the outer wall of the through-hole retain the solid structure of the connecting part to ensure the overall structural strength of the connecting part. Through the above technical solution, the valve thread grooves are symmetrically distributed on the lower end face of the connection part. When connected with the valve stem, the local stress can be evenly distributed, avoiding local cracking of the connection part. At the same time, the retained solid structure can enhance the torsional and compressive resistance of the connection part, prevent the connection part from breaking due to road vibration or frequent disassembly and assembly during long-term use, and extend the overall service life of the device.

[0012] This utility model has the following beneficial effects: 1. The present invention proposes a novel external tire pressure monitoring device for automobiles. By eliminating the built-in hardware and replacing it with a one-time injection-molded plastic connection part (1), the production process is greatly simplified and the material and processing costs are significantly reduced. At the same time, the interference of the hardware on the signal transmission of the built-in high-frequency antenna of the PCB board (3) is completely avoided. The high-frequency antenna is composed of the circuit of the PCB board (3) itself and the iron ring in the middle of the upper end face. The interference-free environment can fully guarantee its signal transmission performance, further improving the practicality of the device.

[0013] 2. The present invention proposes a novel external tire pressure monitoring device for automobiles. The device integrates a high-frequency antenna composed of the circuit on the PCB board (3) and the iron ring in the middle of the upper end face into the PCB board (3). By utilizing the one-to-one correspondence between the first mounting hole (4) and the second mounting hole (6) and the uniform ring distribution design, the PCB board (3) and the connecting part (1) are precisely and evenly assembled. This not only greatly improves the consistency of the high-frequency antenna installation, but also enhances the signal gain with the help of the iron ring, ensuring that the signal transmission stability is not affected by assembly errors and that the transmission efficiency is higher, thus improving the practicality of the device. Attached Figure Description

[0014] Figure 1 This is an isometric view of a novel external tire pressure monitoring device for automobiles proposed in this utility model; Figure 2 This is an exploded structural diagram of a novel external tire pressure monitoring device for automobiles proposed in this utility model; Figure 3 This is a schematic diagram of the upper part of the connection section of a novel external automotive tire pressure monitoring device proposed in this utility model; Figure 4 This is a schematic diagram of the PCB board of a novel external automotive tire pressure monitoring device proposed in this utility model; Figure 5 This is a schematic diagram of the bottom of the connection part of a novel external automotive tire pressure monitoring device proposed in this utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Connecting part; 2. Protective cover; 3. PCB board; 4. First mounting hole; 5. Through port; 6. Second mounting hole; 7. Valve thread groove. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Reference Figure 1-3 This utility model provides a specific implementation method: A novel external tire pressure monitoring device for automobiles includes a connecting part 1, a protective cover 2, a PCB board 3, a first mounting hole 4, a through opening 5, a second mounting hole 6, and a valve thread groove 7. The protective cover 2 is threaded to the upper end of the connecting part 1. The PCB board 3 is mounted on the upper surface of the connecting part 1. Multiple first mounting holes 4 are formed around the upper surface of the connecting part 1. A through opening 5 is formed in the middle of the upper surface of the connecting part 1. Multiple second mounting holes 6 are formed around the upper surface of the PCB board 3. A valve thread groove 7 is formed in the middle of the lower surface of the connecting part 1. By eliminating built-in hardware and replacing it with a one-time injection-molded all-plastic connecting part 1, the production process is greatly simplified, material and processing costs are significantly reduced, and the impact of hardware on the PCB board is completely avoided. The high-frequency antenna built into board 3 is designed to prevent signal transmission interference. This high-frequency antenna is composed of the circuitry on board 3 itself and the iron ring in the middle of its upper surface. An interference-free environment can fully guarantee its signal transmission performance, further improving the practicality of the device. The device integrates the high-frequency antenna, composed of the circuitry on board 3 and the iron ring in the middle of its upper surface, into board 3. By utilizing the one-to-one correspondence between the first mounting hole 4 and the second mounting hole 6 and the uniform ring distribution design, the device achieves precise and balanced assembly of board 3 and connecting part 1. This not only greatly improves the consistency of high-frequency antenna installation but also enhances signal gain with the help of the iron ring. This ensures that the signal transmission stability is not affected by assembly errors and that the transmission efficiency is higher, thus improving the practicality of the device.

[0018] Reference Figure 3-5 The PCB board 3 has a built-in high-frequency antenna, which is composed of the circuit on the PCB board 3 and the iron ring set in the middle of the upper end face. The first mounting hole 4 and the second mounting hole 6 on the PCB board 3 correspond one-to-one. On the one hand, the circuit on the PCB board 3 and the iron ring in the middle of the upper end face are used to form a high-frequency antenna. The iron ring can help enhance the antenna signal gain, optimize the transmission and reception efficiency of high-frequency signals, and improve the signal transmission distance and stability. On the other hand, the one-to-one correspondence between the first mounting hole 4 and the second mounting hole 6 can realize the precise alignment and assembly of the PCB board 3 and the connecting part 1, avoid the high-frequency antenna position shift due to assembly deviation, ensure that the antenna is always in the optimal working position, further ensure the stability of signal transmission performance, and reduce the hole adjustment time during the assembly process, thereby improving the overall assembly efficiency. The through-hole 5 passes through the middle of the upper and lower end faces of the connecting part 1 and communicates with the middle of the outer wall of the valve thread groove 7. The valve thread groove 7 forms a threaded connection with the valve stem on the car tire. The valve thread groove 7 can be stably adapted to the valve stem of different car models, ensuring that the monitor is not easy to fall off after installation. The through-hole 5 can provide a smooth air passage for the tire pressure sensor, so that the sensor can sense the internal tire pressure in real time and accurately, avoiding the deviation of monitoring data caused by air blockage. When the protective cover 2 is fastened to the upper end of the connecting part 1, it completely covers the PCB board 3. The inner wall of the protective cover 2 maintains a preset gap with the upper surface of the PCB board 3 and does not directly contact the surface of the PCB board 3. The protective cover 2 can completely isolate external environmental interference such as dust, rain, and stone collisions, and effectively protect the PCB board 3. At the same time, the preset gap can prevent the protective cover 2 from directly rubbing or squeezing the components on the surface of the PCB board 3, prevent component damage, and ensure the stable circuit function of the PCB board 3. Multiple first mounting holes 4 are evenly distributed in a ring around the through opening 5 on the upper surface of the connecting part 1. The arc distance between two adjacent first mounting holes 4 is equal, and the hole diameter of the first mounting hole 4 is the same as that of the second mounting hole 6. This allows the screws and other connecting parts to be fixed to the PCB board 3 through the corresponding mounting holes, so that the force is evenly distributed around the PCB board 3. This avoids the PCB board 3 from bending and deforming due to uneven force, further improving the consistency and firmness of the PCB board 3 installation, and ensuring that the high-frequency antenna signal transmission is not affected by structural deformation. The groove edge of the valve thread groove 7 is kept at the same distance from the outer periphery of the lower end face of the connecting part 1. The inner wall of the valve thread groove 7 and the outer wall of the through-hole 5 retain the solid structure of the connecting part 1 to ensure the overall structural strength of the connecting part 1. The valve thread groove 7 is symmetrically distributed on the lower end face of the connecting part 1. When connected with the valve stem, the local stress can be evenly distributed to avoid local cracking of the connecting part 1. At the same time, the retained solid structure can enhance the torsional and compressive resistance of the connecting part 1, prevent the connecting part 1 from breaking due to road vibration or frequent disassembly and assembly during long-term use, and extend the overall service life of the device.

[0019] Working principle: When this new external tire pressure monitoring system is working, it first forms a threaded connection with the valve stem on the tire through the valve thread groove 7 in the middle of the lower end face of the connecting part 1, thus achieving a stable installation of the monitor and the tire. At the same time, the through-hole 5 in the middle of the upper end face of the connecting part 1 passes through its upper and lower end faces and communicates with the middle of the outer wall of the valve thread groove 7, providing a smooth air passage for the tire pressure sensor, enabling the sensor to sense the tire's internal air pressure in real time and accurately. Then, the PCB board 3 is placed on the upper end face of the connecting part 1, utilizing the upper end face of the connecting part 1... The first mounting holes 4, evenly distributed in a ring around the through-hole 5 and with the same diameter as the second mounting holes 6, are used to securely fix the PCB board 3 to the upper surface of the connecting part 1 by means of connectors passing through the corresponding first mounting holes 4 and second mounting holes 6. This prevents the built-in high-frequency antenna from being misaligned due to installation misalignment of the PCB board 3. Then, the protective cover 2 is threaded onto the upper end of the connecting part 1, so that the protective cover 2 completely covers the PCB board 3, and the inner wall of the protective cover 2 maintains a preset gap with the upper surface of the PCB board 3, thus preventing the protective cover 2 from colliding with the PCB board 3. The surface components of PCB 3 are protected from direct friction and pressure damage, while also isolating them from external dust, rain, and stone collisions, ensuring the stable operation of the PCB 3 circuit. During operation, the high-frequency antenna built into PCB 3 is composed of the circuitry on PCB 3 and the iron ring set in the middle of its upper surface. This structure can enhance signal gain with the help of the iron ring, optimizing the transmission and reception efficiency of high-frequency signals. At the same time, due to its firm installation and absence of interference from internal hardware, it can stably transmit and transmit the tire pressure data sensed by the tire pressure sensor, avoiding the influence of assembly errors or external factors on signal transmission. Meanwhile, the symmetrical distribution design of the groove edge of the valve thread groove 7 on the lower end face of the connecting part 1, which maintains the same distance from the outer periphery, and the solid structure of the connecting part 1 retained between the inner wall of the valve thread groove 7 and the outer wall of the through-hole 5, can evenly distribute the local stress generated by the valve connection during device operation, enhance the torsional and compressive resistance of the connecting part 1, prevent the connecting part 1 from breaking due to road vibration or frequent disassembly and assembly, ensure the long-term stable operation of the device, and achieve continuous and accurate monitoring of vehicle tire pressure.

[0020] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0021] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel external tire pressure monitoring device for automobiles, comprising a connecting part (1), a protective cover (2), a PCB board (3), a first mounting hole (4), a through-hole (5), a second mounting hole (6), and a valve thread groove (7), characterized in that: The upper end of the connecting part (1) is threaded with a protective cover (2), and a PCB board (3) is provided on the upper surface of the connecting part (1). Multiple first mounting holes (4) are opened around the upper surface of the connecting part (1), a through opening (5) is opened in the middle of the upper surface of the connecting part (1), multiple second mounting holes (6) are opened around the upper surface of the PCB board (3), and a valve thread groove (7) is opened in the middle of the lower surface of the connecting part (1).

2. The novel external tire pressure monitoring device for automobiles according to claim 1, characterized in that: The PCB board (3) has a built-in high-frequency antenna, and the high-frequency antenna is composed of the circuit on the PCB board (3) and the iron ring set in the middle of its upper end face. The first mounting hole (4) corresponds one-to-one with the second mounting hole (6) opened on the PCB board (3).

3. A novel external tire pressure monitoring device for automobiles according to claim 1, characterized in that: The through-hole (5) passes through the middle of the upper and lower end faces of the connecting part (1) and communicates with the middle of the outer wall of the valve thread groove (7). The valve thread groove (7) forms a threaded connection with the valve nozzle on the car tire.

4. A novel external tire pressure monitoring device for automobiles according to claim 1, characterized in that: When the protective cover (2) is fastened to the upper end of the connecting part (1), it completely covers the PCB board (3). The inner wall of the protective cover (2) maintains a preset gap with the upper surface of the PCB board (3) and does not directly contact the surface of the PCB board (3).

5. A novel external tire pressure monitoring device for automobiles according to claim 1, characterized in that: Multiple first mounting holes (4) are evenly distributed in a ring on the upper end face of the connecting part (1) with the through opening (5) as the center. The arc distance between two adjacent first mounting holes (4) is equal, and the diameter of the first mounting hole (4) is the same as the diameter of the second mounting hole (6).

6. A novel external tire pressure monitoring device for automobiles according to claim 1, characterized in that: The groove edge of the valve thread groove (7) is at the same distance from the outer periphery of the lower end face of the connecting part (1). The inner wall of the valve thread groove (7) and the outer wall of the through hole (5) retain the solid structure of the connecting part (1) to ensure the overall structural strength of the connecting part (1).

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