Magnetic attraction charging type tire pressure monitor

Abstract

The invention discloses a magnetic attraction charging type tire pressure monitor, and relates to the technical field of tire pressure monitoring. According to the main technical scheme, the magnetic attraction charging device comprises an air cap, an air nozzle, a battery and a magnetic attraction charging main board. A containing groove is formed in one end of the air cap. The air tap is hermetically connected to a notch of the accommodating groove; the battery is arranged in the accommodating groove; the magnetic attraction charging main board is arranged in the accommodating groove and is connected with the battery; a magnetic attraction needle of the magnetic attraction charging main board is arranged on the groove wall of the containing groove in a penetrating mode. The purposes of reducing the trouble of replacing the battery and reducing the long-term use cost caused by frequently purchasing the battery are expected to be achieved. The portable burden of a user is greatly relieved, and the requirement for carrying a standby battery is lowered. The purposes that the risks of sealing ring abrasion, thread slipping or foreign matter (dust and water vapor) invasion caused by repeated disassembly and assembly are reduced, and the safety of electronic elements in an air cap and the accuracy of monitoring data are ensured are expected to be achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tire pressure monitoring, in particular to a magnetic charging type tire pressure monitor. BACKGROUND

[0002] Most of the small and micro tire pressure monitoring caps in the prior art adopt the way of replacing button batteries to ensure long-term use. On the one hand, not only do users need to reserve button batteries for a long time, but also the use cost and portability burden are increased. On the other hand, the cap often needs to be disassembled when replacing the button battery, and the original sealing structure may be damaged after being disassembled and assembled for many times, which leads to the penetration of dust and water vapor, and further affects the monitoring accuracy and even shortens the service life of the equipment. SUMMARY

[0003] The purpose of the present application is to provide a magnetic charging type tire pressure monitor, which solves the problem that most small and micro tire pressure monitoring caps in the prior art adopt the way of replacing button batteries to ensure long-term use, not only do users need to reserve button batteries for a long time, but also the use cost and portability burden are increased. At the same time, the cap often needs to be disassembled when replacing the button battery, and the original sealing structure may be damaged after being disassembled and assembled for many times, which leads to the penetration of dust and water vapor, and further affects the monitoring accuracy and even shortens the service life of the equipment.

[0004] To solve the above technical problems, the present application adopts the following technical scheme:

[0005] A magnetic charging type tire pressure monitor is provided, which comprises a cap, an air valve, a battery and a magnetic charging mainboard. One end of the cap is provided with a containing groove. The air valve is sealingly connected to the groove opening of the containing groove. The battery is arranged in the containing groove. The magnetic charging mainboard is arranged in the containing groove and connected to the battery. The magnetic attraction needle of the magnetic charging mainboard penetrates the groove wall of the containing groove.

[0006] A further technical scheme is that the magnetic charging type tire pressure monitor further comprises a tire pressure monitoring mainboard. The tire pressure monitoring mainboard is arranged in the containing groove and sealingly connected to the air valve. The tire pressure monitoring mainboard is connected to the battery. One end of the air valve away from the cap is provided with an air channel, and one end of the air channel close to the cap is communicated with the tire pressure monitoring mainboard.

[0007] A further technical scheme is that the magnetic charging type tire pressure monitor further comprises an annular sealing gasket. The sealing gasket is arranged in the containing groove and connected to the air valve and the tire pressure monitoring mainboard at both ends. The inside of the sealing gasket is communicated with the air channel and the tire pressure monitoring mainboard.

[0008] Further, the air nozzle is provided with an installation groove at one end close to the air cap.

[0009] Further, the magnetic charging tire pressure monitor further comprises a speed sensor, and the speed sensor is arranged on the tire pressure monitoring mainboard.

[0010] Further, the air cap is provided with a protection groove on the outer wall, and the magnetic needle end of the magnetic charging mainboard is located in the protection groove.

[0011] Compared with the prior art, the present application has the following advantages:

[0012] On the one hand, the purpose of reducing the trouble of replacing the battery and reducing the use cost is achieved. At the same time, the user does not need to reserve and purchase the button cell for a long time, so as to achieve the purpose of reducing the long-term use cost caused by frequent purchase of the battery. On the other hand, the charging operation is simple, and only needs to be close to the adsorption, without any tool. The purpose of greatly reducing the user's portable burden and reducing the demand for carrying a spare battery is achieved. On the other hand, the charging can be completed without disassembling the air cap, so as to achieve the purpose of ensuring the long-term reliable sealing of the connection between the air nozzle and the air cap, thereby reducing the risk of wear of the sealing ring, thread slipping or invasion of foreign matters (dust, water vapor) caused by repeated disassembly and assembly, so as to ensure the safety of the electronic components in the air cap and the accuracy of the monitoring data. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 Fig. 1 is a front view of a magnetic charging tire pressure monitor according to the present application;

[0014] Fig. 2 Fig. 3 is an exploded view of the magnetic charging tire pressure monitor according to the present application;

[0015] Fig. 3 Fig. 4 is a sectional view of the magnetic charging tire pressure monitor according to the present application.

[0016] Markings in the drawings and corresponding component names:

[0017] 1-air cap; 2-receiving groove; 3-air nozzle; 4-battery; 5-magnetic charging mainboard; 6-tire pressure monitoring mainboard; 7-air passage; 8-ring-shaped sealing gasket; 9-installation groove; 10-protection groove. DETAILED DESCRIPTION

[0018] The present application will be further described below in conjunction with the drawings.

[0019] Embodiment 1: The present embodiment provides a magnetic charging tire pressure monitor, as shown in Figs. 1-3As shown, the device includes an air cap 1, an air nozzle 3, a battery 4, and a magnetic charging main board 5. One end of the air cap 1 has a receiving groove 2. The air nozzle 3 is sealed and connected to the opening of the receiving groove 2. The battery 4 is disposed in the receiving groove 2. The magnetic charging main board 5 is disposed in the receiving groove 2 and is connected to the battery 4. The magnetic pin of the magnetic charging main board 5 passes through the groove wall of the receiving groove 2.

[0020] For example, in implementation, one end of the gas cap 1 is designed with a receiving groove 2, which is used to accommodate electronic components.

[0021] The valve stem 3 is used to connect to the tire valve core, and it is sealed to the groove 2 on the valve cap 1 through ultrasonic welding, threaded tightening with a sealing ring, or interference fit with a sealing ring. This ensures a tight seal between the valve stem 3 and the valve cap 1, aiming to reduce the risk of high-pressure gas leakage from the tire through this connection, as well as the risk of moisture, dust, and other contaminants entering through the connection. This, in turn, improves the overall sealing performance and environmental adaptability of the magnetic charging tire pressure monitoring system. Simultaneously, it aims to ensure the overall structural stability of the magnetic charging tire pressure monitoring system.

[0022] The magnetic charging motherboard 5 can use wireless charging management chips such as IP5328P, IP5356, and IP5568. The magnetic charging motherboard 5 is installed inside the receiving slot 2. Magnetic pins on the motherboard 5 pass through the wall of the receiving slot 2, and these pins are pre-injected into the wall of the receiving slot 2 to ensure a tight seal between the receiving slot 2 and the magnetic pins. This aims to reduce the risk of moisture, dust, and other contaminants entering through the connection between the magnetic pins and the air cap 1, thereby improving the overall sealing performance and environmental adaptability of the magnetically rechargeable tire pressure monitor.

[0023] Battery 4 can be a rechargeable button cell battery of model ML2032, ML125S, ML125, etc. Battery 4 is installed in the receiving slot 2 of the air cap 1 and is used to power the electronic components inside the air cap 1. The battery 4 is connected to the magnetic charging main board 5 by means of screw fixing, welding fixing, etc., and the input terminal of the battery 4 is electrically connected to the output terminal of the magnetic charging main board 5 by means of welding fixing, wire connection, etc.

[0024] During use, when charging battery 4 is required, first, the charging contacts built into the charging base (or charging head) magnetically attach to the magnetic pins on the magnetic charging motherboard 5 to ensure stable and precise alignment. Then, the charging base (or charging head) transfers electrical energy to the magnetic charging motherboard 5 through direct electrical contact. Upon receiving electrical energy, the magnetic charging motherboard 5 charges battery 4 inside the cap 1. This aims to reduce the hassle of replacing battery 4 and lower usage costs. It also eliminates the need for users to constantly stock and purchase button batteries 4, thus reducing long-term usage costs associated with frequent battery purchases. Furthermore, the charging operation is simple; simply bring the magnetic charging base close to the battery to attract it, requiring no tools. This significantly reduces the user's carrying burden and the need to carry spare batteries 4. On the other hand, charging can be completed without disassembling the gas cap 1, in order to ensure the long-term reliable sealing of the connection between the gas nozzle 3 and the gas cap 1, thereby reducing the risk of wear of the sealing ring, stripping of threads or intrusion of foreign objects (dust, moisture) due to repeated disassembly and assembly, so as to ensure the safety of the internal electronic components of the gas cap 1 and the accuracy of monitoring data.

[0025] Example 2: Based on Example 1 above, in this example, as follows... Fig. 3 As shown, the magnetic charging tire pressure monitoring device also includes a tire pressure monitoring main board 6; the tire pressure monitoring main board 6 is disposed in the receiving groove 2, the tire pressure monitoring main board 6 is sealed to the air valve 3, and the tire pressure monitoring main board 6 is connected to the battery 4; the air valve 3 has an air passage 7 at the end away from the air cap 1, and the end of the air passage 7 near the air cap 1 is connected to the tire pressure monitoring main board 6.

[0026] For example, in implementation, the aforementioned magnetically rechargeable tire pressure monitoring device also includes a tire pressure monitoring motherboard 6. The tire pressure monitoring motherboard 6 can use sensor chips such as SP370, SP371, SP372, and MAX20127. The tire pressure monitoring motherboard 6 is installed in the receiving slot 2 and is connected to the air valve 3 via threaded connection, snap-fit ​​connection, or other means. The contact surface between the tire pressure monitoring motherboard 6 and the air valve 3 is sealed using sealing rings, adhesive seals, or other methods, and the power input terminal of the tire pressure monitoring motherboard 6 is electrically connected to the output terminal of the battery 4 via a wire connection.

[0027] An air passage 7 is provided at the end of the valve stem 3 away from the air cap 1. The air passage 7 extends from the end of the valve stem 3 away from the air cap 1 to the end of the valve stem 3 closer to the air cap 1, until the end of the air passage 7 close to the air cap 1 is connected to the tire pressure monitoring main board 6.

[0028] During use, when the end of the valve stem 3 furthest from the valve cap 1 is connected to the tire, the end of the air passage 7 furthest from the tire pressure monitoring mainboard 6 is connected to the inside of the tire. This allows the high-pressure gas inside the tire to directly act on the tire pressure monitoring mainboard 6 through the air passage 7, aiming to achieve real-time and direct pressure measurement. Simultaneously, the sealed connection between the tire pressure monitoring mainboard 6 and the valve stem 3 effectively reduces the risk of high-pressure gas leakage from the tire through the connection point, thereby improving the reliability of the tire pressure monitoring mainboard 6's monitoring data.

[0029] Example 3: Based on Example 2 above, in this example, as follows... Fig. 3 As shown, the magnetic charging tire pressure monitor also includes an annular sealing gasket 8; the sealing gasket is disposed in the receiving groove 2, and the two ends of the sealing gasket are respectively connected to the air valve 3 and the tire pressure monitoring main board 6; wherein, the interior of the sealing gasket connects the air passage 7 and the tire pressure monitoring main board 6.

[0030] For example, in implementation, the aforementioned magnetic charging tire pressure monitoring device also includes an annular sealing gasket 8 made of materials such as silicone or fluororubber. The sealing gasket is installed within the receiving groove 2 of the air cap 1, with both ends of the gasket tightly abutting against the air valve 3 and the tire pressure monitoring mainboard 6, respectively. Furthermore, the internal channel of the annular sealing gasket 8 connects the air passage 7 on the air valve 3 with the tire pressure monitoring mainboard 6. This aims to achieve a sealed connection between the air valve 3 and the tire pressure monitoring mainboard 6, and to ensure communication between the air passage 7 on the air valve 3 and the tire pressure monitoring mainboard 6.

[0031] Example 4: Based on Example 3 above, in this example, as... Fig. 3 As shown, the air nozzle 3 has an installation groove 9 at one end near the air cap 1; the annular sealing gasket 8 is adapted to the installation groove 9.

[0032] For example, during implementation, a mounting groove 9 is opened at the end of the air nozzle 3 near the air cap 1, and the inner diameter of the mounting groove 9 is adapted to the outer diameter of the annular sealing gasket 8.

[0033] During assembly, the annular sealing gasket 8 is first embedded into the mounting groove 9 of the air nozzle 3. This achieves preliminary circumferential and axial positioning of the annular sealing gasket 8, aiming to effectively reduce the risk of the annular sealing gasket 8 rolling, shifting, or falling off during subsequent assembly and use, thereby improving stability during assembly and use.

[0034] When the valve stem 3, valve cap 1, and tire pressure monitoring mainboard 6 are finally assembled, the tire pressure monitoring mainboard 6 applies axial pressure to the annular sealing gasket 8. At this time, the annular sealing gasket 8 is compressed, causing the end of the annular sealing gasket 8 furthest from the tire pressure monitoring mainboard 6 to tightly abut against the bottom of the mounting groove 9, and the end of the annular sealing gasket 8 closest to the tire pressure monitoring mainboard 6 to tightly abut against the corresponding sealing surface of the tire pressure monitoring mainboard 6. This causes the annular sealing gasket 8 to elastically deform, filling all tiny gaps and forming a reliable sealing interface. This aims to achieve a sealed connection between the tire pressure monitoring mainboard 6 and the valve stem 3.

[0035] The air passage 7 extends to the bottom of the mounting groove 9 and is connected to the tire pressure monitoring main board 6 through the internal channel of the annular sealing gasket 8.

[0036] In one optional embodiment, when the annular sealing gasket 8 is embedded in the mounting groove 9, at least one of the following is present: a seal between the annular sealing gasket 8 and the bottom of the mounting groove 9, and a seal between the annular sealing gasket 8 and the wall of the mounting groove 9.

[0037] Example 5: Based on Example 1 above, in this example, the magnetic charging tire pressure monitor further includes a speed sensor; the speed sensor is disposed on the tire pressure monitoring mainboard 6.

[0038] For example, in implementation, the aforementioned magnetically rechargeable tire pressure monitoring system also includes a speed sensor (not shown in the figure). The speed sensor can be a model such as CD-21C-CD-21T or MLV-9. This speed sensor is integrated into the tire pressure monitoring mainboard 6 to achieve tire speed monitoring.

[0039] Example 6: Based on Example 1 above, in this example, as follows... Fig. 3 As shown, a protective groove 10 is provided on the outer wall of the air cap 1; the magnetic needle end of the magnetic charging motherboard 5 is located in the protective groove 10.

[0040] For example, during implementation, a protective groove 10 is provided on the outer wall of the aforementioned air cap 1, and the end of the magnetic needle on the magnetic charging motherboard 5 is located within the protective groove 10. This effectively reduces the exposed length of the magnetic needle on the magnetic charging motherboard 5, thereby reducing the risk of the magnetic needle on the magnetic charging motherboard 5 being impacted, squeezed, or bent by external forces, and thus improving the safety and service life of the magnetic needle on the magnetic charging motherboard 5.

[0041] In a preferred embodiment, the end of the magnetic pin on the magnetic charging motherboard 5 is located in the same plane as the bottom of the protective groove 10. This is intended to further reduce the exposed length of the magnetic pin on the magnetic charging motherboard 5, thereby reducing the risk of the magnetic pin on the magnetic charging motherboard 5 being impacted, squeezed, or bent by external forces, and thus improving the safety and service life of the magnetic pin on the magnetic charging motherboard 5.

[0042] In a preferred embodiment, the shape of the protective groove 10 is adapted to the charging base (or charging head), so that the charging base (or charging head) can be snapped into the protective groove 10 during charging. This aims to reduce the risk of the charging base (or charging head) becoming loose or slipping during charging, thereby ensuring the stability of the charging process.

[0043] Although the invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter arrangement within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A magnetically rechargeable tire pressure monitoring device, characterized in that, include: An air cap (1) is provided with a receiving groove (2) at one end; Air nozzle (3), which is sealed to the opening of the receiving groove (2); Battery (4), wherein the battery (4) is disposed in the receiving groove (2); A magnetic charging motherboard (5) is disposed in the receiving groove (2) and is connected to the battery (4); wherein the magnetic pin of the magnetic charging motherboard (5) passes through the groove wall of the receiving groove (2).

2. The magnetically rechargeable tire pressure monitoring device according to claim 1, characterized in that: It also includes a tire pressure monitoring motherboard (6); The tire pressure monitoring main board (6) is disposed in the receiving groove (2), the tire pressure monitoring main board (6) is sealed to the air valve (3), and the tire pressure monitoring main board (6) is connected to the battery (4); The valve (3) has an air passage (7) at the end away from the air cap (1), and the end of the air passage (7) near the air cap (1) is connected to the tire pressure monitoring motherboard (6).

3. The magnetically rechargeable tire pressure monitoring device according to claim 2, characterized in that: It also includes an annular sealing gasket (8); The sealing gasket is disposed in the receiving groove (2), and the two ends of the sealing gasket are respectively connected to the air valve (3) and the tire pressure monitoring main board (6); The interior of the sealing gasket connects the air passage (7) to the tire pressure monitoring mainboard (6).

4. The magnetically rechargeable tire pressure monitoring device according to claim 3, characterized in that: The air nozzle (3) has an installation groove (9) at one end near the air cap (1); The annular sealing gasket (8) is adapted to the mounting groove (9).

5. The magnetically rechargeable tire pressure monitoring device according to claim 1, characterized in that: It also includes a speed sensor; The speed sensor is mounted on the tire pressure monitoring mainboard (6).

6. The magnetically rechargeable tire pressure monitoring device according to claim 1, characterized in that: The outer wall of the air cap (1) is provided with a protective groove (10); The magnetic pin end of the magnetic charging motherboard (5) is located inside the protective groove (10).

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