Novel valve core device for automobile tire

Abstract

The utility model relates to the technical field of manufacturing of automobile tire pressure detection equipment, in particular to a novel valve core device for an automobile tire, which is reasonable in structure, simple and convenient to disassemble and assemble, capable of meeting the requirement for collecting parameters such as tire pressure or temperature or position in the automobile running process and capable of effectively prolonging the automobile running data monitoring time. A conduction component used for realizing electrical connection between the external power supply assembly and the sensor assembly is also arranged; the external power supply assembly is arranged on the inflating valve cap; the negative electrode of the external power supply assembly is connected with the inflating valve body by the inflating valve cap through threads, the negative electrode of the sensor assembly is connected with the inflating valve body, and the positive electrode of the external power supply assembly is connected with the positive electrode of the built-in tire pressure sensor assembly by the inflating valve cap through a conduction component.

Description

Technical fields:

[0001] This utility model relates to the field of automotive tire pressure monitoring equipment manufacturing technology. Specifically, it is a new type of automotive tire valve core device with a reasonable structure, easy disassembly and assembly, which can meet the requirements for collecting parameters such as tire pressure, temperature or position during vehicle operation and can effectively extend the monitoring time of vehicle driving data. Background technology:

[0002] To improve the monitoring of driving behavior, it is necessary to collect relevant vehicle parameters during driving, such as tire pressure data, temperature data, and driving position. This data is collected and output in real time by sensors installed on the vehicle body. Taking tire pressure data as an example, sensors built into the tire body are a prerequisite for accurate tire pressure monitoring. However, due to the limitations of tire structure, traditional tire pressure measurement methods require the vehicle to be completely stopped, making it impossible to know the real-time changes in tire pressure while driving. If an abnormality occurs in the tire while driving, the driver cannot immediately detect and respond. Currently, tire pressure sensors on the market are generally divided into internal and external tire pressure sensors. External tire pressure sensors are installed outside the tire valve stem, making them easily damaged. To detect air pressure, the valve core may not seal properly, resulting in malfunction and potential air leakage. Internal tire pressure sensors have their own valve stem and are installed inside the tire, making battery replacement difficult and resulting in a shorter lifespan. Because the built-in battery is usually heavier, it affects the static and dynamic balance of the wheel.

[0003] To improve the accuracy of tire-related data collection during vehicle operation, it is necessary to provide a novel valve core device that facilitates the integration of various sensors. Existing patent document CN111267559A describes a built-in tire pressure sensor, which uses a solar cell module mounted on a solar-powered valve cap to power and store electricity for various functional modules of the tire pressure sensing device. The solar power generation module is installed on the outer surface of the solar-powered valve cap. The built-in sensing device disclosed in this document also includes a monitoring box and a valve stem assembly. The solar-powered valve cap assembly is a modified, enlarged valve cap with a wedge-shaped groove at the lower part of the valve stem. A hollow space between the outer and inner walls of the solar-powered valve cap forms a cap chamber for housing the functional modules of the tire pressure sensing device. A display screen, function buttons, and the solar power generation module are embedded in the outer wall. One end of a wire embedded in the valve stem wall is connected to the functional module inside the cap chamber via a conductive contact, and the other end of the wire is connected to the functional module inside the monitoring box, thereby achieving communication between the functional modules inside the solar-powered valve cap and the functional modules inside the monitoring box. The implementation of this solution requires significant structural changes to multiple components in the valve assembly. The finished product will be incompatible with valves and related auxiliary accessories in accordance with national standards, resulting in poor practicality. Furthermore, the complex structure and exposed wires make it easy for them to short-circuit with the valve assembly body made of metal, leading to poor product stability. Summary of the Invention:

[0004] This utility model addresses the shortcomings and deficiencies of existing technologies by proposing a novel valve core device for automobile tires that, while meeting the national standards for valve products, can satisfy the requirements for collecting parameters such as tire pressure, temperature, or position during vehicle operation and can effectively extend the duration of vehicle driving data monitoring.

[0005] This utility model achieves its purpose through the following measures:

[0006] A novel valve core device for automotive tires includes a valve core, a valve stem body, a valve stem locking nut, and a valve stem cap. The valve core is housed within the valve stem body. The valve stem locking nut and the valve stem cap are threadedly connected to the upper part of the valve stem body, with the valve stem cap fixed above the valve stem locking nut. The device is characterized by further including a conductive component for electrically connecting an external power supply component and a sensor component. The external power supply component is mounted on the valve stem cap. The valve stem cap connects the negative terminal of the external power supply component to the valve stem body via threads, and the negative terminal of the sensor component is connected to the valve stem body. The valve stem cap connects the positive terminal of the external power supply component to the positive terminal of an internal tire pressure sensor component via the conductive component.

[0007] The external power supply component described in this utility model includes a battery and a battery cover. The battery is installed on the battery cover. Furthermore, the battery cover is connected to the upper end of the valve cap by threads or fastening. The battery cover presses the positive terminal of the battery against the upper end of the conductive component to achieve electrical connection.

[0008] The conductive component described in this utility model includes, from top to bottom, a first contact electrode plate disposed on the upper end face of the valve cap, a first conductor embedded in the valve cap and penetrating the valve cap body, and a second contact electrode plate disposed on the lower end face of the valve cap. The upper end and lower end of the first conductor are respectively connected to the first contact electrode plate and the second contact electrode plate, and an insulating layer is provided between the first conductor and the valve cap body.

[0009] The conductive component of this utility model further includes a third contact electrode plate disposed on the upper end of the valve body, a second conductor extending from top to bottom through the valve body, and a fourth contact electrode plate disposed on the lower end face of the valve body. The upper and lower ends of the second conductor are respectively connected to the third contact electrode plate and the fourth contact electrode plate. An insulating layer is provided between the second conductor and the valve body. After the valve cap is assembled onto the upper end of the valve body, the second contact electrode plate contacts the third contact electrode plate and realizes electrical signal conduction.

[0010] The sensor assembly of this invention includes a sensor and a sensor circuit, wherein the positive terminal of the sensor circuit is connected to the fourth contact electrode plate at the lower end of the valve body.

[0011] In this utility model, the valve body, valve cap, and battery cover are coated to prevent oxidation and maintain conductivity.

[0012] Compared with the prior art, this utility model, by pre-embedding conductors and setting corresponding contact electrode plates in the valve body, valve cap, and internal components, enables the external power supply component located outside the valve mechanism to achieve electrical connection to the sensor connected to the lower end of the valve body. This ensures the insulation of any component in the valve mechanism during the process, preventing leakage. The structure is reasonable, meets national standards for valve products, can replace existing products, and significantly improves the service life and lifespan of the built-in sensor. Attached image description:

[0013] Appendix Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Appendix Figure 2 This is a cross-sectional view of the present invention.

[0015] Appendix Figure 3 This is a schematic diagram of the structure of the valve cap and external power supply component in this utility model.

[0016] Appendix Figure 4 This is a schematic diagram of the valve cap structure in this utility model.

[0017] Appendix Figure 5 This is a schematic diagram of the principle of this utility model.

[0018] Reference numerals: 1. Valve core; 2. Valve body; 3. Valve locking nut; 4. Valve cap; 5. Battery; 6. Battery cover; 7. First contact electrode; 8. First conductor; 9. Second contact electrode; 10. Insulating layer; 11. Third contact electrode; 12. Second conductor; 13. Fourth contact electrode; 14. Sensor; 15. Sensor circuit; 16. Wheel hub; 17. External power supply assembly; 18. Sensor assembly. Detailed implementation method:

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Example 1:

[0021] As attached Figure 1 and appendix Figure 2 As shown, this example provides an externally powered tire pressure monitoring device, which includes a tire pressure monitoring sensor and a valve mechanism. The valve mechanism includes a valve core 1, a valve body 2, a valve locking nut 3, and a valve cap 4. The valve core 1 is placed inside the valve body 2. The valve locking nut 3 and the valve cap 4 are respectively threaded to the upper part of the valve body 2, and the valve cap 4 is fixed above the valve locking nut 3. The upper part of the valve mechanism is provided with an external power supply component 17, and the lower end is connected to an internal tire pressure sensor component 18. The valve mechanism also includes a conductive component for realizing the electrical connection between the external power supply component and the internal tire pressure sensor component.

[0022] In this example, the external power supply component is mounted on the valve cap 4; the valve cap 4 connects the negative terminal of the external power supply component to the valve body 2 via threads, and the negative terminal of the built-in tire pressure sensor component is connected to the valve body 2; the valve cap 4 connects the positive terminal of the external power supply component to the positive terminal of the built-in tire pressure sensor component via a conductive component.

[0023] As attached Figure 3 As shown, the external power supply assembly described in this example includes a battery 5 and a battery cover 6. The battery 5 is installed on the battery cover 6. Furthermore, the battery cover 6 is connected to the upper end of the valve cap 4 by threads or fastening. The conductive spring 19 on the inner side of the battery cover 6 is connected to the negative terminal of the battery. The battery cover 6 presses the positive terminal of the battery against the upper end of the conductive component to achieve electrical connection.

[0024] As attached Figure 4As shown, the conductive component described in this example includes, from top to bottom, a first contact electrode 7 disposed on the upper end face of the valve cap 4, a first conductor 8 embedded in the valve cap 4 and penetrating the valve cap body, and a second contact electrode 9 disposed on the lower end face of the valve cap 4. The upper end and lower end of the first conductor 8 are connected to the first contact electrode 7 and the second contact electrode 9, respectively. An insulating layer 10 is provided between the first conductor 8 and the valve cap 4 body. In this example, the first contact electrode 7 is circular, and the second contact electrode 9 is annular. In order to ensure effective communication and necessary insulation between the first conductor 8 and the first contact electrode 7, an insulating layer 10 is provided on the lower side of the first contact electrode 7, except for the contact area with the upper end of the first conductor 8.

[0025] As attached Figure 2 As shown, the conductive component in this example also includes a third contact electrode 11 disposed on the upper end of the valve body 2, a second conductor 12 extending from top to bottom through the valve body 2, and a fourth contact electrode 13 disposed on the lower end face of the valve body 2. The upper and lower ends of the second conductor 12 are respectively connected to the third contact electrode 11 and the fourth contact electrode 13. An insulating layer 10 is provided between the second conductor 12 and the valve body 2. After the valve cap 4 is assembled onto the upper end of the valve body 2, the second contact electrode 9 contacts the third contact electrode 11 and realizes electrical signal conduction.

[0026] The built-in tire pressure sensor assembly described in this example includes a sensor 14 and a sensor circuit 15. The positive terminal of the sensor circuit 15 is connected to the fourth contact electrode 13 at the lower end of the valve body 2. In this example, the valve body, valve cap, and battery cover are coated to prevent oxidation and maintain conductivity.

[0027] Compared with the prior art, this utility model, by pre-embedding conductors in the valve body, valve cap, and internal components, and setting corresponding contact electrode plates, enables the external power supply component located outside the valve body to achieve electrical connection to the built-in sensor connected to the lower end of the valve body. This ensures the insulation of any component in the valve body during this process, preventing leakage. The structure is reasonable, meets national standards for valve products, can replace existing products, and significantly improves the service life and lifespan of the built-in tire pressure sensor.

Claims

1. A novel valve core device for automobile tires, comprising a valve core, a valve body, a valve locking nut and a valve cap, wherein the valve core is placed in the valve body, the valve locking nut and the valve cap are respectively connected to the upper part of the valve body via threads, and the valve cap is fixed above the valve locking nut, characterized in that: A conducting component is also provided for realizing electrical connection between an external power supply component and a sensor component; the external power supply component is arranged on the valve cap; the valve cap connects the negative pole of the external power supply component to the valve body through threads, the negative pole of the sensor component is connected to the valve body, and the valve cap connects the positive pole of the external power supply component to the positive pole of the built-in tire pressure sensor component through the conducting component.

2. A novel valve core device for automobile tires according to claim 1, characterized in that: The external power supply assembly is provided with a battery and a battery cover. The battery is mounted on the battery cover. The battery cover is connected to the upper end of the valve cap via threads or snap-fits. The battery cover presses the positive pole of the battery against the upper end of the conductive component to achieve electrical connection.

3. A novel valve core device for automobile tires according to claim 1, characterized in that: The conductive component includes, from top to bottom, a first contact electrode sheet arranged on the upper end surface of the valve cap, a first conductor pre-buried in the valve cap and penetrating the valve cap body, and a second contact electrode sheet arranged on the lower end surface of the valve cap. The upper end and the lower end of the first conductor are respectively connected to the first contact electrode sheet and the second contact electrode sheet, and an insulating layer is provided between the first conductor and the valve cap body.

4. A novel valve core device for automobile tires according to claim 3, characterized in that: The conductive component also includes a third contact electrode sheet arranged at the upper end of the valve body, a second conductor penetrating the valve body from top to bottom, and a fourth contact electrode sheet arranged on the lower end surface of the valve body, wherein the upper and lower ends of the second conductor are respectively conductively connected to the third contact electrode sheet and the fourth contact electrode sheet, and an insulating layer is provided between the second conductor and the valve body; after the valve cap is assembled to the upper end of the valve body, the second contact electrode sheet contacts the third contact electrode sheet and realizes electrical signal conduction.

5. A novel valve core device for automobile tires according to claim 1, characterized in that: The sensor assembly includes a sensor and a sensor circuit, and the positive electrode of the sensor circuit is connected to the fourth contact electrode sheet at the lower end of the valve body.

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