A tire pressure monitoring sensor that is easy to receive signals

Abstract

The utility model provides a tire pressure monitoring sensor that is easy to receive signals, belonging to the technical field of tire pressure monitoring sensors, comprising a shell, a cover plate snap-connected at the opening of the shell, a tire pressure monitoring sensor body installed in the cavity between the cover plate and the shell, a raised connection block fixedly connected to the middle of the shell, a connecting hole penetrating the connection block is provided on the connection block, a convex groove is reserved on one side of the connection block, a vent is provided on the side of the convex groove away from the connection hole, and a valve rod is installed at the lower end of the shell. The utility model solves the problem that the existing tire internal sensor is easily affected by external interference, such as electromagnetic interference, radio frequency interference, temperature and humidity interference, etc., resulting in signals that are difficult to receive and send, and the received or sent signals are easily distorted, thereby reducing the transmission quality.

Description

Technical Field

[0001] The utility model belongs to the technical field of tire pressure monitoring sensors, and in particular relates to a tire pressure monitoring sensor which is easy to receive signals. Background Art

[0002] The running state of the tires during the driving process of the car is closely related to the safety of the vehicle. According to statistics, among the major traffic accidents that occurred on domestic and foreign highways, a large number of traffic accidents were caused by excessive tire pressure or leakage. At present, in order to reduce traffic accidents caused by tires, automobile manufacturers have made tire pressure monitoring sensors as standard configurations for factory cars. In order to monitor tire pressure in real time, tire pressure monitoring sensors came into being. However, the existing tire pressure monitoring sensors are greatly affected by external interference when in use, resulting in monitoring errors. Therefore, a tire pressure monitoring sensor that is easy to receive signals is now introduced.

[0003] Existing tire internal sensors are easily affected by external interference, such as electromagnetic interference, radio frequency interference, temperature and humidity interference, etc., which makes it difficult to receive and send signals, and the received or sent signals are easily distorted, thereby reducing the transmission quality. Summary of the invention

[0004] The utility model provides a tire pressure monitoring sensor that is easy to receive signals, and aims to solve the problem that the existing tire internal sensor is easily interfered by the outside world, resulting in difficulty in receiving and sending signals, and the received or sent signals are easily distorted, thereby reducing the transmission quality.

[0005] An embodiment of the utility model provides a tire pressure monitoring sensor that is easy to receive signals, including a shell, a cover plate is snap-connected at the opening of the shell, a tire pressure monitoring sensor body is installed in the cavity between the cover plate and the shell, a raised connecting block is fixedly connected to the middle of the shell, a connecting block is provided with a connecting hole that passes through the connecting block, a convex groove is reserved on one side of the connecting block, and a vent hole is provided on the side of the convex groove away from the connecting hole, and an air nozzle rod body is installed at the lower end of the shell.

[0006] Furthermore, the tire pressure monitoring sensor body includes a circuit board, a battery is installed on one side of the circuit board, the battery is electrically connected to the circuit board, a pressure sensor is installed on the circuit board, and an antenna is also provided on the circuit board, the antenna is connected to both ends of the circuit board and placed in the convex groove, and the antenna is electrically connected to the circuit board.

[0007] By adopting the above technical solution, the battery can provide power to the circuit board, and the antenna can be electrically connected to the circuit board. The antenna can receive and transmit signals to the circuit board, and the antenna and the circuit board work together.

[0008] Furthermore, a connecting pipe is fixedly connected to the end of the air nozzle rod body, and the connecting pipe is inserted into the communicating hole and fixedly connected with a bolt.

[0009] By adopting the above technical solution, the valve stem body is conveniently connected to the housing through bolts, and is also convenient for disassembly.

[0010] Furthermore, the air nozzle rod body is fixedly connected with an air nozzle at one end away from the connecting pipe, and a valve cap is threadedly connected to the air nozzle.

[0011] By adopting the above technical solution, the air can be inflated or deflated through the air nozzle, and the valve cap can provide good protection for the air nozzle to prevent damage.

[0012] Furthermore, the positions of the vent holes and the sensing points on the pressure sensor correspond to each other.

[0013] By adopting the above technical solution, the vent hole can make the tire air directly contact with the sensing point of the pressure sensor, so that the pressure inside the tire can be directly monitored.

[0014] Furthermore, the tire pressure monitoring sensor also includes a repeater, a filtering module, a temperature measurement module, an acceleration sensing module, and a tire pressure measurement module. The antenna is electrically connected to the repeater, and the temperature measurement module, the acceleration sensing module, the tire pressure measurement module, and the filtering module are electrically connected to the antenna.

[0015] By adopting the above technical solution, the temperature measurement module, acceleration sensing module, and tire pressure measurement module transmit the monitored or sensed data signals to the antenna, and then the antenna transmits the signals to the repeater. The repeater then enhances, amplifies and transmits the signals. At the same time, the filtering module will filter the interference signals of different bands, and then automatically identify the effective signals to prevent the signals from being interfered with.

[0016] The beneficial effects of the utility model are:

[0017] The utility model sets a repeater and a filter module. Since there will be loss when the signal is transmitted on the line, the power of the transmitted signal will gradually decrease until it is distorted, which will lead to reception errors. The repeater can copy, adjust and amplify the signal to keep it the same as the original data, so as to extend the length of the network. At the same time, the filter module can filter interference signals of different bands, and then automatically identify effective signals, which can guarantee the efficiency of signal transmission to the greatest extent and ensure that it will not be interfered with, thereby greatly improving the sensor's ability to receive and send signals.

[0018] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the expanded structure of a tire pressure monitoring sensor according to an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the sensor module of an embodiment of the utility model;

[0022] Figure numerals: 1. Shell; 2. Cover plate; 3. Tire pressure monitoring sensor body; 31. Circuit board; 32. Battery; 33. Pressure sensor; 34. Antenna; 4. Connecting block; 5. Connecting hole; 6. Groove; 7. Vent; 8. Air nozzle rod; 81. Connecting pipe; 82. Bolt; 83. Air nozzle; 84. Valve cap; 100. Repeater; 200. Filter module; 300. Temperature measurement module; 400. Acceleration sensing module; 500. Tire pressure measurement module. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in conjunction with the drawings of the specific embodiments of the utility model. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1The embodiment of the utility model proposes a tire pressure monitoring sensor that is easy to receive signals, including a shell 1, a cover plate 2 is snap-connected at the opening of the shell 1, a raised connecting block 4 is fixedly connected to the middle of the shell 1, a connecting hole 5 penetrating the connecting block 4 is opened on the connecting block 4, a convex groove 6 is reserved on one side of the connecting block 4, a tire pressure monitoring sensor body 3 is installed in the cavity between the cover plate 2 and the shell 1, the tire pressure monitoring sensor body 3 includes a circuit board 31, the circuit board 31 includes various modules, a battery 32 is installed on one side of the circuit board 31, the battery 32 is electrically connected to the circuit board 31, a pressure sensor 33 is installed on the circuit board 31, and the circuit board 31 also An antenna 34 is provided, and the antenna 34 is inserted at both ends of the circuit board 31 and placed in the convex groove 6. The antenna 34 is electrically connected to the circuit board 31. The battery 32 can provide power to the circuit board 31, so that each module on the circuit board 31 can work normally. At the same time, the antenna 34 can be electrically connected to the circuit board 31. The antenna 34 can receive and transmit signals to the circuit board 31. The antenna 34 and the circuit board 31 work together. The convex groove 6 is provided with a vent hole 7 on the side away from the connecting block 4. The vent hole 7 corresponds to the position of the sensing point on the pressure sensor 33. The vent hole 7 can make the tire air directly contact with the sensing point of the pressure sensor 33, and the pressure in the tire can be directly monitored.

[0025] refer to Figure 1 A valve stem 8 is installed at the lower end of the shell 1, and a connecting pipe 81 is fixedly connected to the end of the valve stem 8. The connecting pipe 81 is inserted into the connecting hole 5 and fixedly connected with a bolt 82. The bolt 82 facilitates the connection between the valve stem 8 and the shell 1 and facilitates disassembly. The valve stem 8 is fixedly connected to an air nozzle 83 at the end away from the connecting pipe 81. A valve cap 84 is threadedly connected to the air nozzle 83, which can be used for inflation or deflation. At the same time, the valve cap 84 can provide good protection for the air nozzle 83 to prevent damage.

[0026] refer to Figure 1Tire monitoring is mainly completed by three parts, namely sensors, receivers, and displays. Its working principle is that each module on the circuit board 31 receives the pressure, temperature and acceleration of the tire, and transmits it to the receiver through the antenna 34 on the circuit board 31. After being analyzed by the receiver, it is fed back to the display. Its main function is to monitor the tire pressure, ensure the consistency of tire pressure, increase the service life of the tire, and reduce fuel consumption. The tire pressure monitoring sensor body 3 includes a repeater 100, a filtering module 200, a temperature measurement module 300, an acceleration sensing module 400, and a tire pressure measurement module 500. The antenna 34 is electrically connected to the repeater 100, and the temperature measurement module 300, the acceleration sensing module 400, the tire pressure measurement module 500 and the filtering module 200 are electrically connected to the antenna 34. The temperature measurement module 300, the acceleration sensing module 400, and the tire pressure measurement module 500 transmit the monitored or sensed signal to the antenna 34, and then the antenna 34 transmits the signal to the repeater 100. The repeater 100 further enhances and amplifies the signal and transmits it to the receiver. The repeater 100 is a device for connecting a network line, which is often used for two-way forwarding of physical signals between two network nodes. The repeater 100 mainly completes the function of the physical layer, is responsible for bit-by-bit transmission of information on the physical layer of two nodes, and completes the functions of signal replication, adjustment and amplification, thereby extending the length of the network. Due to the existence of loss, the signal power transmitted on the line will gradually decay, and when it decays to a certain extent, it will cause signal distortion, thus causing reception errors. The repeater 100 is designed to solve this problem. It completes the connection of the physical line, amplifies the attenuated signal, and keeps it the same as the original data. Then the receiver analyzes the signal, and at the same time the filter module 200 will filter the interference signals of different bands, and then automatically identify the effective signal. The filter module 200 can allow specific frequency components in the signal to pass through, while greatly attenuating other frequency components. Using this frequency selection function of the filter module 200, interference noise can be filtered out or spectrum analysis can be performed to prevent the signal from being interfered. Transmitting power of the sensor: 58~70dBuV / m@3 meters, transmission rate: 4.0kBaud±5%, pressure measurement range: 100~750kpa, temperature measurement range: -35℃~+120℃, working voltage:

[0027] 2.2V~3.5V, pressure measurement accuracy: ±8.24kPa (0℃-45℃) ±18.5kPa (-35℃–0℃, 55℃–80℃), temperature measurement accuracy: ±3℃ (-15℃–65℃), ±5℃ (-35℃–-15℃) (75℃–95℃), transmission power:

[0028] -48~-37dBm, working temperature: -35℃~120℃ (the working time cannot be too long when the tire is 120 degrees), storage temperature: -35℃~+120℃. When the measurement result is abnormal, the alarm module transmits an abnormal signal, and when the receiver receives the signal, an alarm will be issued to warn. At the same time, the user end can monitor the fault information in real time, allowing the driver to monitor the status of the tire in real time.

[0029] The specific implementation method is as follows: when in use, first pull out the original air nozzle in the tire, and connect the air nozzle rod body 8 to the shell 1. After the connection, extend the air nozzle rod body 8 out of the wheel hub from the hole of the original air nozzle, and then use a handheld multi-function tester to activate the tire pressure monitoring sensor body 3 inside the shell 1. After successful activation, the sensor starts to work. When the vehicle starts, the acceleration sensing module 400 in the sensor will monitor whether the vehicle is moving, thereby enabling the repeater 100, the filtering module 200, the temperature measurement module 300 and the tire pressure measurement module 500 to work and monitor the pressure inside the tire in real time. The repeater 100 will amplify and enhance the signal to extend the length of the network. At the same time, the filtering module 200 will filter signals of different wavelengths and automatically identify valid signals to maximize the efficiency of signal transmission and prevent distortion.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A tire pressure monitoring sensor that is easy to receive signals, characterized in that: The invention comprises a shell (1), a cover plate (2) is snap-connected at the opening of the shell (1), a tire pressure monitoring sensor body (3) is installed in the cavity between the cover plate (2) and the shell (1), a raised connecting block (4) is fixedly connected to the middle of the shell (1), a connecting hole (5) penetrating the connecting block (4) is provided on the connecting block (4), a convex groove (6) is reserved on one side of the connecting block (4), a vent hole (7) is provided on the side of the convex groove (6) away from the connecting block (4), and a valve rod (8) is installed at the lower end of the shell (1).

2. A tire pressure monitoring sensor that is easy to receive signals according to claim 1, characterized in that: The tire pressure monitoring sensor body (3) comprises a circuit board (31), a battery (32) is installed on one side of the circuit board (31), the battery (32) is electrically connected to the circuit board (31), a pressure sensor (33) is installed on the circuit board (31), an antenna (34) is also arranged on the circuit board (31), the antenna (34) is connected to both ends of the circuit board (31) and placed in the convex groove (6), and the antenna (34) is electrically connected to the circuit board (31).

3. A tire pressure monitoring sensor that is easy to receive signals according to claim 1, characterized in that: The end of the air nozzle rod body (8) is fixedly connected with a connecting pipe (81), and the connecting pipe (81) is inserted into the connecting hole (5) and is threadedly connected via a bolt (82).

4. A tire pressure monitoring sensor that is easy to receive signals according to claim 3, characterized in that: The air nozzle rod (8) is fixedly connected to an air nozzle (83) at one end away from the connecting pipe (81), and a valve cap (84) is threadedly connected to the air nozzle (83).

5. A tire pressure monitoring sensor that is easy to receive signals according to claim 2, characterized in that: The positions of the vent hole (7) and the sensing point on the pressure sensor (33) correspond to each other.

6. A tire pressure monitoring sensor that is easy to receive signals according to claim 2, characterized in that: The tire pressure monitoring sensor body (3) also includes a repeater (100), a filtering module (200), a temperature measurement module (300), an acceleration sensing module (400), and a tire pressure measurement module (500); the antenna (34) is electrically connected to the repeater (100); and the temperature measurement module (300), the acceleration sensing module (400), the tire pressure measurement module (500), and the filtering module (200) are electrically connected to the antenna (34).

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