CN114435037A

CN114435037A - Tire pressure sensor and tire pressure monitoring method thereof

Info

Publication number: CN114435037A
Application number: CN202210073454.6A
Authority: CN
Inventors: 何辉
Original assignee: Zhejiang Kefeng Sensor Co ltd
Current assignee: Zhejiang Kefeng Sensor Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-05-06
Anticipated expiration: 2042-01-21
Also published as: CN114435037B

Abstract

The application discloses a tire pressure sensor and a tire pressure monitoring method thereof, which comprise an inflating valve, wherein the end part of the inflating valve is provided with a clamping ring; a monitoring case detachably mounted on the valve through a mounting member; a monitoring mechanism installed in the monitoring housing to monitor a tire air pressure; the mounting component comprises an inner sleeve, an outer sleeve and a bottom sleeve; the block, it installs including sheathe in with the cooperation of snap ring joint, the monitoring shell is installed between endotheca and overcoat, the endotheca passes through the block of block with the snap ring and installs on the inflating valve, overcoat and end cover are connected with fixed block through screw-thread fit, the joint cooperation through block and snap ring is with endotheca primary erection on the inflating valve, through the mutually supporting of end cover and overcoat, make the bottom and the outside of block blocked by along top surface and overcoat inner wall butt simultaneously, and make the monitoring shell fixed between overcoat and endotheca, through such a mode, prevent that the monitoring shell from droing from the inflating valve.

Description

Tire pressure sensor and tire pressure monitoring method thereof

Technical Field

The invention relates to a tire pressure sensor and a tire pressure monitoring method thereof.

Background

The driving safety of a driver is the primary consideration when the driver drives on the road, and the influence of the tire pressure on the vehicle condition is very severe, so that the influence on the driving safety is critical. The tire needs to have normal tire pressure to enable the vehicle to run smoothly, and the tire pressure which is too high or too low can cause tire burst or tire rupture, which seriously affects the running stability of the vehicle and threatens the life and property safety of passers, so the monitoring of the tire pressure is of no importance to the running safety, the existing tire pressure sensor has two types of built-in type and external type, wherein the built-in tire pressure sensor is arranged in the tire, and the tire is required to be dismounted firstly if the built-in tire pressure sensor needs to be dismounted, so the tire pressure sensor can effectively prevent theft and is safer compared with the external tire pressure sensor, but the existing tire pressure sensor has the following defects technically:

1. usually, the valve is connected with the valve through a thread groove arranged on the valve, so that the risk of falling off exists in the running process of an automobile;

2. the conventional tire pressure sensor lacks a shock absorption protection measure inside when in use, and internal elements of a vehicle are easily damaged by vibration during the running process.

Disclosure of Invention

The present invention is directed to solving one of the technical problems of the prior art.

The application provides a tire pressure sensor, includes:

the end of the inflating valve is provided with a clamping ring;

a monitoring case detachably mounted on the valve through a mounting member;

a monitoring mechanism installed in the monitoring housing to monitor a tire air pressure;

the mounting component comprises an inner sleeve, an outer sleeve and a bottom sleeve;

the clamping block is arranged on the inner sleeve and is in clamping fit with the clamping ring;

the monitoring shell is arranged between the inner sleeve and the outer sleeve, the inner sleeve is arranged on the valve through the clamping of the clamping block and the clamping ring, and the outer sleeve and the bottom sleeve are connected through thread matching to fix the clamping block.

The monitoring mechanism includes:

a pair of baffles mounted in the monitoring housing interior;

a pair of through holes respectively positioned on the top of the monitoring shell and the upper side clapboard;

the atmospheric cavity is positioned between the lower side clapboard and the bottom of the inner cavity of the monitoring shell;

a processing module mounted on the partition;

and the tire pressure monitoring module is arranged on the lower side clapboard and is electrically connected with the processing module.

The monitoring mechanism further comprises:

a conductive film mounted on the lower partition plate through the notch;

and the conductive contact rods are provided with a pair and are arranged at the bottom of the constant-pressure cavity, correspond to the conductive film and are electrically connected with the processing module.

The monitoring mechanism includes:

and the Bluetooth connecting module is arranged on the partition board and is electrically connected with the processing module.

The mounting member further includes:

the spring plates are arranged at the bottom of the inner sleeve and used for installing the clamping blocks;

and the diameter of an inner ring formed by each spring plate is smaller than the diameter of the outer diameter of the snap ring.

The mounting member further includes:

and the plurality of strength reducing grooves are respectively arranged on the outer sides of the spring plates.

The mounting member further includes:

the clamping edge is arranged at the bottom of the inner wall of the bottom sleeve, and the inner diameter of the clamping edge is not smaller than the outer diameter of the clamping ring;

wherein, the inner wall of card edge is passed through threaded connection with the overcoat at the end cover and is held up with the block outer wall butt.

The mounting member further includes:

the buffer cavity is positioned between the inner sleeve and the outer sleeve and used for installing the monitoring shell;

the shock pad is arranged between the top of the inner sleeve and the bottom of the monitoring shell;

the lap edge is arranged on the outer wall of the monitoring shell;

and the shock absorption ring is arranged between the lapping edge and the top of the buffer cavity.

The mounting member further includes:

the sliding chutes are arc-shaped and are distributed on the inner side wall of the buffer cavity;

the sliding blocks are respectively installed in the sliding grooves in a sliding manner;

a link unit including a fixed link and a movable link;

the springs are arranged between the end surfaces of the sliding blocks and the end surfaces of the sliding chutes;

wherein, the one end of fixed connecting rod and movable connecting rod is articulated each other and this articulated department and monitoring shell outer wall butt, and the one end that movable connecting rod was kept away from to fixed connecting rod is articulated with the cushion chamber inner wall, and the one end that movable connecting rod was kept away from fixed connecting rod is articulated with the slider.

The tire pressure monitoring method comprises the following steps:

s1, connecting with the mobile equipment through the Bluetooth connecting module;

s2, the tire pressure monitoring module monitors the air pressure in the tire, the processing module generates a digital signal and sends the digital signal to the mobile equipment through the Bluetooth connecting module, and the mobile equipment displays the tire pressure in real time;

s3, the processing module judges the tire pressure increasing speed in real time, if the tire pressure increasing speed is smaller than a set value, the tire pressure increasing speed caused by the increase of the tire temperature due to the driving of the vehicle can be judged, and if the tire pressure increasing speed is larger than a preset value, the Bluetooth connecting module sends a signal to enable the mobile equipment to send out acousto-optic early warning;

s4, the conductive film is pressed into the normal pressure cavity by monitoring the tire pressure in the inner cavity of the shell to be communicated with the pair of conductive contact rods, the processing module monitors the communication between the pair of conductive contact rods, the electric signal is sent to the mobile equipment through the Bluetooth connecting module, and the mobile equipment gives out a high-sound alarm.

The invention has the following beneficial effects:

1. the inner sleeve is preliminarily mounted on the inflating valve through the clamping matching of the clamping block and the clamping ring, the bottom end and the outer side of the clamping block are simultaneously abutted by the clamping edge top surface and the outer sleeve inner wall through the mutual matching of the bottom sleeve and the outer sleeve, and the monitoring shell is fixed between the outer sleeve and the inner sleeve, so that the monitoring shell is prevented from falling off from the inflating valve;

2. through the arrangement of the conductive film and the pair of conductive contact rods, when the tire pressure is too high, the air pressure in the monitoring shell rises along with the arrangement of the through holes, the conductive film is jacked up to the normal pressure cavity, when the tire pressure is too high, the conductive film is in contact with the pair of conductive contact rods, a circuit is connected, the processing module sends information to the mobile equipment through the Bluetooth module connecting module, the tire pressure too high early warning is sent out, and the processing module is matched with the tire pressure monitoring module, so that the tire pressure detection sensitivity is ensured;

3. the vibration to be acted on the upper side and the lower side of the monitoring shell is absorbed through the arrangement of the buffer cushion and the damping ring, when the monitoring shell shakes in the jacket, the hinged ends of the fixed connecting rod and the movable connecting rod on the moving side of the monitoring shell are pushed, so that the fixed connecting rod and the movable connecting rod swing around the hinged point between the fixed connecting rod and the movable connecting rod, the pushing sliding block slides in the sliding groove to transmit the vibration to the spring, and the vibration is absorbed through the spring, and through the mode, the monitoring shell is subjected to omnibearing buffer protection, and elements arranged in the monitoring shell are prevented from being damaged due to the influence of the vibration;

4. the tire pressure rising speed is judged through the processing module, and when the tire pressure rises abnormally, the electric signal is sent to the mobile device through the Bluetooth connecting module to remind people, so that the phenomenon that people are misled by sending error information when the tire pressure rises normally due to the fact that the vehicle runs is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a tire pressure sensor according to an embodiment of the present application;

fig. 2 is a schematic view of a structure of a link unit and a slider in the tire pressure sensor according to the embodiment of the present application.

Reference numerals

1-valve, 2-snap ring, 3-monitoring shell, 4-mounting component, 401-inner sleeve, 402-outer sleeve, 403-bottom sleeve, 404-spring plate, 405-strength reducing groove, 406-clamping edge, 407-buffer cavity, 408-shock absorbing pad, 409-lapping edge, 410-shock absorbing ring, 411-sliding groove, 412-sliding block, 413-fixed connecting rod, 414-movable connecting rod, 415-spring, 5-monitoring mechanism, 501-clapboard, 502-through hole, 503-constant pressure cavity, 504-processing module, 505-tire pressure monitoring module, 506-conductive film, 507-conductive contact rod, 508-Bluetooth connecting module and 6-clamping block.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The server provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

As shown in fig. 1 to 2, an embodiment of the present application provides a tire pressure sensor, including a valve 1, an end of which is provided with a snap ring 2; a monitor case 3 detachably mounted on the valve 1 through a mounting member 4; a monitoring mechanism 5 installed inside the monitoring housing 3 to monitor the tire air pressure; the mounting member 4 includes an inner case 401, an outer case 402, and a bottom case 403; the clamping block 6 is arranged on the inner sleeve 401 and is in clamping fit with the clamping ring 2, the monitoring shell 3 is arranged between the inner sleeve 401 and the outer sleeve 402, the inner sleeve 401 is arranged on the valve cock 1 through the clamping of the clamping block 6 and the clamping ring 2, and the outer sleeve 402 and the bottom sleeve 403 are connected through thread fit to fix the clamping block 6.

Further, the monitoring mechanism 5 includes a pair of partition plates 501 installed in the inner cavity of the monitoring housing 3; a pair of through holes 502 respectively located on the top of the monitoring case 3 and the upper side partition 501; a constant pressure chamber 503 between the lower side partition 501 and the bottom of the inner chamber of the monitoring case 3; a process module 504 mounted on the partition 501; and an air pressure monitoring module 505 mounted on the lower partition 501 to be electrically connected to the processing module 504.

Further, the monitoring mechanism 5 further includes a conductive film 506 mounted on the lower partition 501 through a notch; a pair of conductive contact bars 507, which are installed at the bottom of the atmospheric chamber 503 and correspond to the conductive film 506 and are electrically connected to the processing module 504.

Further, the monitoring mechanism 5 includes a bluetooth connection module 508 mounted on the partition 501 and electrically connected to the processing module 504.

Further, the mounting component 4 further comprises a plurality of spring plates 404 which are mounted at the bottom of the inner sleeve 401 for mounting the clamping block 6, and the diameter of an inner ring formed by each spring plate 404 is smaller than the diameter of the outer diameter of the snap ring 2.

Further, the mounting member 4 further includes a plurality of strength reducing grooves 405 respectively provided outside the spring plates 404.

Further, the mounting component 4 further comprises a clamping edge 406, the clamping edge 406 is arranged at the bottom of the inner wall of the bottom sleeve 403, the inner diameter of the clamping edge 406 is not smaller than the outer diameter of the clamping ring 2, and the inner wall of the clamping edge 406 abuts against the outer wall of the clamping block 6 when the bottom sleeve 403 is in threaded connection with the outer sleeve 402.

Further, the mounting member 4 further includes a buffer chamber 407 located between the inner sleeve 401 and the outer sleeve 402 for mounting the monitoring shell 3; a shock pad 408 installed between the top of the inner sleeve 401 and the bottom of the monitoring shell 3; a ledge 409 arranged on the outer wall of the monitoring shell 3; a shock ring 410 mounted between the ledge 409 and the top of the buffer chamber 407.

Further, the mounting member 4 further includes a plurality of sliding slots 411, which are arc-shaped and distributed on the inner side wall of the buffer cavity 407; a plurality of sliders 412 slidably mounted in the respective sliding grooves 411; a link unit including a fixed link 413 and a movable link 414; and a plurality of springs 415 which are arranged between the end surface of each sliding block 412 and the end surface of each sliding chute 411, one ends of the fixed connecting rod 413 and the movable connecting rod 414 are hinged with each other, the hinged part is abutted against the outer wall of the monitoring shell 3, one end of the fixed connecting rod 413, which is far away from the movable connecting rod 414, is hinged with the inner wall of the buffer cavity 407, and one end of the movable connecting rod 414, which is far away from the fixed connecting rod 413, is hinged with the sliding block 412.

Further, the valve also comprises a ring groove which is positioned on the outer wall of the valve 1; the plurality of inserting blocks are movably inserted on the side wall of the inner sleeve 401, and the upper side of the outer end of each inserting block is provided with an oblique angle; when the outer sleeve 402, the inner sleeve 401 and the bottom sleeve 403 are assembled, each insert is pushed into the annular groove by the outer sleeve 402, and the outer end of each insert abuts against the inner wall of the outer sleeve 402.

The tire pressure monitoring method comprises the following steps:

s1, connecting with the mobile device through the Bluetooth connection module 508;

s2, the tire pressure monitoring module 505 monitors the pressure in the tire, the processing module 504 generates a digital signal and transmits the digital signal to the mobile device through the bluetooth connection module 508, and the mobile device displays the tire pressure in real time;

s3, the processing module 504 judges the tire pressure increasing speed in real time, if the tire pressure increasing speed is smaller than a set value, the tire pressure increasing speed caused by the temperature increase of the tire due to the vehicle running can be judged, and if the tire pressure increasing speed is larger than a preset value, the Bluetooth connecting module 508 sends a signal to enable the mobile equipment to send out acousto-optic early warning;

s4, monitoring the tire pressure in the inner cavity of the shell 3, pressing the conductive film 506 into the normal pressure cavity 503 to be connected with the pair of conductive contact rods 507, monitoring the connection between the pair of conductive contact rods 507 by the processing module 504, sending an electric signal to the mobile equipment through the Bluetooth connection module 508, and sending out a loud alarm by the mobile equipment.

In the embodiment, because the above structure is adopted, during installation, the bottom sleeve 403 and the inner sleeve 401 are sequentially sleeved on the valve 1, the bottom sleeve 403 is moved to the lower part of the snap ring 2, the inner sleeve 401 is pushed towards the bottom sleeve 403, the bottom ends of the snap blocks 6 are obliquely arranged, the bottom surface of each snap block 6 is abutted against the top part of the snap ring 2 and is pushed outwards in the process that the inner sleeve 401 moves downwards, each spring plate 404 is bent outwards until the snap block 6 moves to the lower side of the snap ring 2, the spring plate 404 is restored, the snap block 6 is engaged with the bottom part of the snap ring 2, the monitoring shell 3 is placed on the shock pad 408, the outer sleeve 402 is sleeved outside the monitoring shell 3 and moves towards the snap ring 2, the bottom end of the outer sleeve is in contact with the oblique angle of each insert block, each insert block is pushed into the annular groove along with the downward movement of the outer sleeve 402 until the lapping edge 409 on the monitoring shell 3 is abutted against the shock ring 410, the outer side wall of the monitoring shell 3 is abutted against the hinged sides of the movable connecting rod 414 and the fixed connecting rod 413, inner threads and outer threads which are matched with each other are arranged on the inner wall of the bottom sleeve 403 and the outer wall of the outer sleeve 402, and the bottom sleeve 403 moves upwards to be connected with the outer sleeve 402 through threads.

Furthermore, through holes are arranged on the side walls of the inner sleeve 401 and the outer sleeve 402 to connect the inner cavity of the inner sleeve 401 with the inner cavity of the tire.

Furthermore, the bolt sequentially penetrates through the side wall of the bottom sleeve 403 and the side wall of the outer sleeve 402 and then is in threaded fastening connection with the side wall of the inner sleeve 401.

Further, the portion of the spring plate 404 provided with the strength reducing groove 405 is weak in strength and is likely to be bent outward when the engaging block 6 moves toward the lower side of the snap ring 2.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A tire pressure sensor, comprising:

the valve (1) is provided with a snap ring (2) at the end part;

a monitoring case (3) detachably mounted on the valve (1) by a mounting member (4);

a monitoring mechanism (5) mounted within the monitoring housing (3) to monitor tire air pressure;

the mounting component (4) comprises an inner sleeve (401), an outer sleeve (402) and a bottom sleeve (403);

the clamping block (6) is arranged on the inner sleeve (401) and is in clamping fit with the clamping ring (2);

the monitoring shell (3) is arranged between the inner sleeve (401) and the outer sleeve (402), the inner sleeve (401) is arranged on the valve cock (1) through the clamping of the clamping block (6) and the clamping ring (2), and the outer sleeve (402) and the bottom sleeve (403) are connected through thread matching to fix the clamping block (6).

2. Tyre pressure sensor according to claim 1, characterized in that the monitoring means (5) comprise:

a pair of bulkheads (501) installed in the inner cavity of the monitoring case (3);

a pair of through holes (502) respectively located on the top of the monitoring shell (3) and the upper side partition plate (501);

the atmospheric cavity (503) is positioned between the lower side baffle plate (501) and the bottom of the inner cavity of the monitoring shell (3);

a processing module (504) mounted on the partition (501);

and the tire pressure monitoring module (505) is mounted on the lower side of the partition plate (501) and is electrically connected with the processing module (504).

3. A tire pressure sensor according to claim 2, wherein the monitoring mechanism (5) further comprises:

a conductive film (506) mounted on the lower side of the partition (501) through a notch;

and a pair of conductive contact rods (507) which are arranged at the bottom of the constant pressure cavity (503), correspond to the conductive film (506) and are electrically connected with the processing module (504).

4. A tire pressure sensor according to claim 3, wherein the monitoring mechanism (5) comprises:

and the Bluetooth connection module (508) is arranged on the partition plate (501) and is electrically connected with the processing module (504).

5. A tire pressure sensor according to claim 4, wherein the mounting part (4) further comprises:

the spring plates (404) are arranged at the bottom of the inner sleeve (401) and used for installing the clamping blocks (6);

the diameter of an inner ring formed by each spring plate (404) is smaller than the diameter of the outer diameter of the snap ring (2).

6. A tire pressure sensor according to claim 5, wherein the mounting part (4) further comprises:

and a plurality of strength reducing grooves (405) respectively arranged outside the spring plates (404).

7. A tire pressure sensor according to claim 5, wherein the mounting part (4) further comprises:

the clamping edge (406) is arranged at the bottom of the inner wall of the bottom sleeve (403) and the inner diameter of the clamping edge is not smaller than the outer diameter of the clamping ring (2);

the inner wall of the clamping edge (406) is abutted against the outer wall of the clamping block (6) when the bottom sleeve (403) is in threaded connection with the outer sleeve (402).

8. A tire pressure sensor according to claim 5, wherein the mounting part (4) further comprises:

a buffer chamber (407) located between the inner sleeve (401) and the outer sleeve (402) for mounting a monitoring shell (3);

a shock-absorbing pad (408) installed between the top of the inner sleeve (401) and the bottom of the monitoring shell (3);

a ledge (409) arranged on the outer wall of the monitoring shell (3);

a shock ring (410) mounted between the ledge (409) and the top of the buffer chamber (407).

9. The tire pressure sensor according to claim 8, wherein the mounting part (4) further comprises:

the sliding chutes (411) are arc-shaped and are distributed on the inner side wall of the buffer cavity (407);

a plurality of sliding blocks (412) which are respectively installed in the sliding grooves (411) in a sliding manner;

a link unit including a fixed link (413) and a movable link (414);

a plurality of springs (415) which are arranged between the end surface of each sliding block (412) and the end surface of each sliding chute (411);

one end of the fixed connecting rod (413) and one end of the movable connecting rod (414) are hinged to each other, the hinged position is abutted to the outer wall of the monitoring shell (3), one end, far away from the movable connecting rod (414), of the fixed connecting rod (413) is hinged to the inner wall of the buffer cavity (407), and one end, far away from the fixed connecting rod (413), of the movable connecting rod (414) is hinged to the sliding block (412).

10. A tire pressure monitoring method adapted to the tire pressure sensor according to claim 9, characterized by comprising the steps of:

s1, connecting with the mobile device through the Bluetooth connection module (508);

s2, the tire pressure monitoring module (505) monitors the air pressure in the tire, the processing module (504) generates a digital signal and sends the digital signal to the mobile equipment through the Bluetooth connecting module (508), and the mobile equipment displays the tire pressure in real time;

s3, the processing module (504) judges the tire pressure increasing speed in real time, if the tire pressure increasing speed is smaller than a set value, the tire pressure increasing speed caused by the increase of the tire temperature due to the driving of the vehicle can be judged, and if the tire pressure increasing speed is larger than a preset value, the Bluetooth connection module (508) sends a signal to enable the mobile equipment to send out acousto-optic early warning;

s4, monitoring the tire pressure in the inner cavity of the shell (3) to press the conductive film (506) into the normal pressure cavity (503) to be connected with the pair of conductive contact rods (507), monitoring the connection between the pair of conductive contact rods (507) by the processing module (504), sending an electric signal to the mobile equipment through the Bluetooth connection module (508), and sending out a loud alarm by the mobile equipment.