CN214727969U

CN214727969U - Double-antenna tire pressure sensor

Info

Publication number: CN214727969U
Application number: CN202120360000.8U
Authority: CN
Inventors: 伍宗仁
Original assignee: Shenzhen Autotech Electronics Ltd
Current assignee: Shenzhen Autotech Electronics Ltd
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2021-11-16
Anticipated expiration: 2031-02-09

Abstract

The utility model relates to a sensor technical field especially relates to a tire pressure sensor, including inflating valve subassembly, fixed screw, casing and sensing subassembly, wherein, inflating valve subassembly passes through fixed screw with the casing and is connected, and sensing subassembly is located inside the casing. Through setting up two antennas, can be compatible not transmission frequency channel for the frequency channel of difference can both keep the biggest transmission signal intensity, and then makes the sensor can both stabilize and the interference killing feature is strong in the frequency channel transmission of difference.

Description

Double-antenna tire pressure sensor

Technical Field

The utility model relates to a sensor technical field especially relates to a two antenna tire pressure sensor.

Background

In many countries, the tire pressure sensor is often used as a standard of an automobile for detecting the internal pressure, temperature and the like of the tire of the automobile in real time, transmitting and displaying data to a driver in a cab, avoiding traffic accidents caused by insufficient air pressure, overhigh air leakage, overhigh temperature of the tire surface and the like of the tire, and ensuring the driving safety. At present, the tire pressure sensor on the market has a single frequency band, and only one antenna is needed, so that the maximum transmitting power and stability of different frequency bands can not be realized even if the sensor compatible with multiple frequency bands is provided.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a tire pressure sensor of double antenna aims at providing the tire pressure sensor of the transmission frequency channel that can be compatible not.

The embodiment of the utility model provides a realize like this, a tire pressure sensor, including inflating valve subassembly, set screw, casing and sensing subassembly, wherein, inflating valve subassembly with the casing passes through the set screw connection, the sensing subassembly is located inside the casing;

the connecting structure of the shell is provided with a vertical through hole, the vertical through hole is used for allowing the fixing screw to move in the vertical direction within the length range of the vertical through hole, and the fixing screw is connected with the shell through the vertical through hole.

Further, the sensing component includes a PCBA board, a battery, an antenna, a battery clip, and a sensor.

Further, the antenna with PCBA board connection, the antenna is fixed in on the PCBA board.

Further, the number of the antennas is more than or equal to two.

Further, the number of the antennas is two, and each antenna and the PCBA board have two fixed contact points.

Further, the plane enclosed by the antenna is perpendicular to the PCBA board.

Further, all of the antennas are located on the same side of the PCBA board.

Further, the antenna is disposed parallel to the PCBA board.

The utility model discloses following beneficial effect has: through setting up two antennas, can be compatible not transmission frequency channel for the frequency channel of difference can both keep the biggest transmission signal intensity, and then makes the sensor can both stabilize and the interference killing feature is strong in the frequency channel transmission of difference.

Drawings

Fig. 1 is an exploded schematic view of a tire pressure sensor according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a tire pressure sensor provided in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a housing and a sensing assembly of a tire pressure sensor according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a housing of the tire pressure sensor according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a sensing assembly of a tire pressure sensor according to an embodiment of the present invention;

fig. 6 is a top view of a tire pressure sensor provided in an embodiment of the present invention;

fig. 7 is a bottom view of the tire pressure sensor provided in the embodiment of the present invention.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to further explain the present invention in detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The utility model provides a tire pressure sensor, as shown in figure 1, including inflating valve subassembly 1, fixed screw 2, casing 3 and sensing component 4. The valve assembly 1 is connected with the shell 3 through a fixing screw 2, and the sensing assembly 4 is located inside the shell 3.

Further, the housing 3 and the sensing assembly 4 are connected by screws.

Further, as shown in fig. 2, the valve assembly 1 includes a connection end 11, a rubber ring 12, a gasket 13, a nut 14, and a valve cap 15. The connecting end 11, the rubber ring 12, the gasket 13, the nut 14 and the valve cap 15 are coaxially arranged and arranged in sequence from one end close to the housing 3.

Further, the end of the connecting end 11 is semi-spherical, so that the connecting end 11 can be connected with the connecting structure, and the head of the connecting end 11 is provided with a threaded hole connected with the fixing screw 2.

Further, the rubber ring 12 is located at the tail end of the connecting end 11, and the rubber ring 12 can play a role in cushioning.

Further, a valve pin (not shown) is provided in the nut 14.

Further, a valve cap 15 is located at the end of the valve assembly 1 remote from the housing 3, and the arrangement of the valve cap can play a role of dust prevention.

Further, as shown in fig. 3 and 4, the housing 3 is recessed inside for placing the sensing assembly 4.

Further, a slot for placing a battery and a PCBA board is provided inside the housing 3.

Further, the outer surface of the housing 3 is provided with a connection structure for cooperating with the connection end 11.

Further, the outer surface of the shell 3 is provided with a connecting structure matched with the connecting end 11, the connecting structure is in a spherical groove shape, and the radian of the groove is consistent with that of the end of the connecting end 11 and is used for being connected with the end of the connecting end 11. Recess center department opens has a vertical perforating hole 31, the width of vertical perforating hole 31 slightly is wider than fixed screw 2 diameters, length is good at fixed screw 2 diameters, it can make fixed screw 2 pass connection structure and combine with link 11 to set up vertical perforating hole 31, and simultaneously, fixed screw 2 can carry out the ascending removal of vertical side in vertical perforating hole 31 length range, and then drive the sensor and rotate, reach the effect of adjustment sensor angle, that is to say, the position that can be used for adjusting the sensor adapts to different rim structures, avoid different rims to lead to the fact the interference to the sensor.

Furthermore, the joint of the head of the fixing screw 2 and the stud is processed into a limiting plane structure, and the limiting plane structure is attached to the long edge of the vertical through hole 31, so that the fixing screw 2 cannot rotate in the vertical through hole 31.

Further, as shown in fig. 5, the sensing member 4 includes a PCBA Board (Printed Circuit Board Assembly) 41, a battery 42, an antenna 43, and a battery holder 44. The PCBA board 41 is located at the bottom, the battery holder 44 is provided on the side of the PCBA board 41, the battery 42 is connected to the PCBA board 41 via the battery holder 44, and the two antennas 43 are connected to the PCBA board and fixed to the PCBA board 41.

Further, the number of the antennas 43 is equal to or greater than two, in this embodiment, and in other embodiments, the number of the antennas 43 may be greater than two.

Further, there are two pads per antenna 43 and PCBA board 41, and in this embodiment, there are four pads for the two antennas.

Further, the two antennas 43 are spaced apart by a suitable distance, and the antennas 43 and the PCBA board 41 enclose a rectangular shape, and in other embodiments, the shape may be a pentagon or a triangle.

Further, two antennas 43 are arranged parallel to the PCBA board 41, on the same side of the PCBA board.

Further, the plane in which each antenna 43 is located is perpendicular to the PCBA board.

Further, in order to reduce the interference of the battery to the antenna, the antenna 43 is disposed at an end far from the battery 42.

Through setting up two antennas, can be compatible not transmission frequency channel for the frequency channel of difference can both keep the biggest transmission signal intensity, and then makes the sensor can both stabilize and the interference killing feature is strong in the frequency channel transmission of difference.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The double-antenna tire pressure sensor is characterized by comprising a valve assembly, a fixing screw, a shell and a sensing assembly, wherein the valve assembly is connected with the shell through the fixing screw, and the sensing assembly is positioned in the shell;

2. The dual antenna tire pressure sensor of claim 1, wherein said sensing assembly comprises a PCBA board, a battery, an antenna, a battery clip, and a sensor.

3. The dual antenna tire pressure sensor of claim 2, wherein said antenna is connected to said PCBA board, said antenna being fixed to said PCBA board.

4. The dual antenna tire pressure sensor of claim 2, wherein the number of antennas is two or more.

5. The dual antenna tire pressure sensor of claim 2, wherein said number of antennas is two, each of said antennas having two fixed contact points with said PCBA board.

6. The dual antenna tire pressure sensor of claim 2, wherein the plane enclosed by said antenna is perpendicular to said PCBA board.

7. The dual antenna tire pressure sensor of claim 2, wherein all of said antennas are located on the same side of said PCBA board.

8. The dual antenna tire pressure sensor of claim 2, wherein said antenna is disposed parallel to said PCBA board.