CN216331246U - Spherical tire pressure sensor - Google Patents
Spherical tire pressure sensor Download PDFInfo
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- CN216331246U CN216331246U CN202123317790.0U CN202123317790U CN216331246U CN 216331246 U CN216331246 U CN 216331246U CN 202123317790 U CN202123317790 U CN 202123317790U CN 216331246 U CN216331246 U CN 216331246U
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- shell
- circuit board
- pressure sensor
- tire pressure
- air hole
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Abstract
The utility model discloses a spherical tire pressure sensor, which comprises: the shell comprises a first shell and a second shell which are connected in a matching manner, and a first air hole penetrating through the first shell is formed in the first shell; the induction assembly is arranged inside the shell and comprises a circuit board, an inductor, an antenna and a power supply, wherein the inductor, the antenna and the power supply are arranged on the circuit board, and the circuit board is connected with the shell; the waterproof plug is arranged in the first shell and positioned between the inductor and the first shell, so that the inductor is communicated with the first air hole; the sealed shell is wrapped on the outer side of the shell, a second air hole penetrating through the shell is formed in the shell, and the second air hole is communicated with the first air hole. According to the utility model, the spherical tire pressure sensor can be thrown into a tire without being mounted with a hub, and the spherical tire pressure sensor has good waterproof performance and can withstand the harsh environment.
Description
Technical Field
The utility model relates to the technical field of tire pressure detection, in particular to a spherical tire pressure sensor.
Background
The tyre pressure monitoring system is an active safety system of automobile, which adopts wireless transmission technology, utilizes a high-sensitivity micro wireless sensing device fixed in the tyre of the automobile to collect the pressure, temperature and other data of the automobile tyre in a driving or static state, transmits the data to a host computer in a cab, displays the pressure, temperature and other related data of the automobile tyre in a digital form in real time, and reminds a driver to perform early warning in the form of buzzing or voice when the tyre is abnormal (preventing tyre burst).
With the increasing variety of automobiles and the increasing complexity of factors such as geographic environment, the tire pressure monitoring system is updated, and more automobiles adopt in-tire sensors which are directly arranged in the tires of the automobiles. Because the inside of the automobile wheel is easily provided with water mist or oil stain, the sealing performance of the sensor with the structure is poor, and the normal use of the tire pressure sensor is influenced.
Therefore, there is a need to design a spherical tire pressure sensor to solve the above problems.
Disclosure of Invention
In view of the above technical problems, an object of the present invention is to provide a spherical tire pressure sensor which can be mounted in a throwing tire without a hub, has good waterproof performance, and can withstand a severe environment.
In order to achieve the above object, the present invention provides a spherical tire pressure sensor including:
the shell comprises a first shell and a second shell which are connected in a matching manner, and a first air hole penetrating through the first shell is formed in the first shell;
the induction assembly is arranged inside the shell and comprises a circuit board, an inductor, an antenna and a power supply, wherein the inductor, the antenna and the power supply are arranged on the circuit board, and the circuit board is connected with the shell;
the waterproof plug is arranged in the first shell and positioned between the inductor and the first shell, so that the inductor is communicated with the first air hole;
the sealed shell is wrapped on the outer side of the shell, a second air hole penetrating through the shell is formed in the shell, and the second air hole is communicated with the first air hole.
In some embodiments, a connecting column is arranged in the first shell, the first air hole penetrates through the connecting column along the length direction of the connecting column, one end of the connecting column is fixedly connected with the first shell, the other end of the connecting column is connected with the waterproof plug, and one side, far away from the connecting column, of the waterproof plug is tightly attached to the sensor.
In some embodiments, a plurality of support columns are arranged in the first housing at intervals in parallel, one end of each support column is fixedly connected with the first housing, and the other end of each support column is connected with the circuit board.
In some embodiments, a boss is respectively disposed at one end of each support column away from the first housing, a mounting hole is disposed at a position corresponding to the circuit board, and the boss is in adaptive connection with the mounting hole, so that the circuit board is fixedly connected or detachably connected with the first housing.
In some embodiments, the first housing and the second housing are each a hemisphere, and the first housing and the second housing are fixedly connected or detachably connected.
In some embodiments, a flange is arranged on the edge of the first shell, a groove is arranged on the edge of the second shell, the flange is adapted to be placed in the groove, and the first shell and the second shell are fixed by hot riveting through a laser hot riveting process;
or a flange is arranged at the edge of the second shell, a groove is formed in the edge of the first shell, the flange is arranged in the groove in an adaptive mode, and the first shell and the second shell are fixed through hot riveting through a laser hot riveting process.
In some embodiments, the inductor is disposed on one side of the circuit board and faces the first air hole, the antenna is disposed on one side of the circuit board close to the inductor, and the power supply is disposed on one side of the circuit board far away from the inductor;
the circuit board is arranged in the middle of the shell, and the cavity of the first shell is communicated with the cavity of the second shell.
In some embodiments, the second housing is provided with an injection port through which a filler is filled into the housing.
In some embodiments, an end of the first housing away from the second housing is disposed as a first plane, and the first air vent is disposed on the first plane;
and/or one end of the second shell, which is far away from the first shell, is arranged as a second plane, and the injection port is arranged on the second plane.
In some embodiments, the outer surface of the shell is provided with a plurality of asperities, and the shell is integrally formed from a thermoplastic material.
Compared with the prior art, the spherical tire pressure sensor provided by the utility model has the following beneficial effects:
1. the spherical tire pressure sensor provided by the utility model has a light structure, is convenient to install, can be installed with a wheel hub without throwing into a tire, moves in the tire when the tire travels along with the wheel, senses the gas pressure in an air pressure space, achieves the convenience of quick and simple installation, has reliable waterproof performance and mechanism strength, and can withstand the harsh environment;
2. according to the spherical tire pressure sensor provided by the utility model, the shell is divided into the upper shell and the lower shell, so that the processing technology of the shell is simplified, and the installation of the sensing assembly is facilitated; be provided with the injection mouth on the second casing, fill the filler in to the casing through the injection mouth for spherical tire pressure sensor intensity is higher, and waterproof performance is more excellent.
Drawings
The above features, technical features, advantages and modes of realisation of the present invention will be further described in the following detailed description of preferred embodiments thereof, which is to be read in connection with the accompanying drawings.
Fig. 1 is a sectional view of a spherical tire pressure sensor according to a preferred embodiment of the present invention;
fig. 2 is a schematic structural view of a spherical tire pressure sensor according to a preferred embodiment of the present invention;
FIG. 3 is a schematic structural view of a first housing of the preferred embodiment of the present invention;
FIG. 4 is a schematic structural view of a second housing of the preferred embodiment of the present invention;
fig. 5 is a schematic structural diagram of a sensing assembly according to a preferred embodiment of the present invention.
The reference numbers illustrate:
the shell comprises a shell 1, a first shell 11, a first air hole 111, a connecting column 112, a supporting column 113, a boss 1131, a first plane 114, a flange 115, a second shell 12, a groove 121, an injection port 122, a second plane 123, a rough part 13, an induction component 2, a circuit board 21, a mounting hole 211, an inductor 22, an antenna 23, a power supply 24, a waterproof plug 3, a shell 4 and a second air hole 41.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the utility model, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
For the sake of simplicity, only the parts related to the utility model are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.
In one embodiment, referring to fig. 1 and 2 of the specification, the utility model provides a spherical tire pressure sensor, comprising: the water-proof device comprises a shell 1, an induction assembly 2, a water-proof plug 3 and a shell 4. The housing 1 is a sealing structure, and includes a first housing 11 and a second housing 12 that are connected in an adaptive manner, and a first air hole 111 that penetrates through the first housing 11 is provided on the first housing 11. The sensing assembly 2 is disposed inside the housing 1, the sensing assembly 2 includes a circuit board 21, and a sensor 22, an antenna 23 and a power supply 24 disposed on the circuit board 21, and the circuit board 21 is connected to the housing 1. The waterproof plug 3 is disposed in the first housing 11 and located between the inductor 22 and the first housing 11, so that the inductor 22 is in communication with the first air hole 111, and the waterproof plug 3 is waterproof and breathable. The sealed housing 4 covers the outside of the casing 1, and the housing 4 is provided with a second air hole 41 penetrating through the housing 4, and the second air hole 41 is communicated with the first air hole 111.
In the embodiment, the shell 1 is divided into the first shell 11 and the second shell 12, so that the processing technology of the shell 1 is simplified, and the installation of the induction component 2 is facilitated; the shell 1 and the shell 2 are both set to be of a closed structure, and the sensor 22 penetrates through the waterproof plug 3 and is communicated with the air pressure space through the first air hole 111 and the second air hole 41, so that the spherical tire pressure sensor has good waterproofness; the spherical tire pressure sensor has the advantages that the structure is light and handy, the installation is convenient, the installation with a wheel hub can be omitted when the spherical tire pressure sensor is thrown into a tire, the spherical tire pressure sensor moves in the tire along with the wheel during traveling, the gas pressure in a gas pressure space is sensed, the convenience of quick and simple installation is realized, the waterproof performance and the mechanism strength are reliable, and the spherical tire pressure sensor can withstand harsh environments.
In one embodiment, referring to the attached drawings 1 to 5 in the specification, on the basis of the above embodiment, the shape of the housing 1 is a sphere, an ellipsoid or a polygon, in this embodiment, the shape of the housing 1 is a sphere, the first housing 11 and the second housing 12 are respectively of a hemisphere structure, and the first housing 11 and the second housing 12 are fixedly connected or detachably connected. For example: the first shell 11 and the second shell 12 are detachably connected through a buckle or a bolt, or the first shell 11 and the second shell 12 are bonded through glue or are fixed through hot riveting through a laser hot riveting process. In this embodiment, the edge of the first housing 11 is provided with the flange 115, the edge of the second housing 12 is provided with the groove 121, the flange 115 is adapted to be disposed in the groove 121, and the first housing 11 and the second housing 12 are fixed by hot riveting through a laser hot riveting process, so that the connection stability is effectively ensured. Of course, a flange may also be disposed on the edge of the second housing 12, a groove may be disposed on the edge of the first housing 11, the flange is adapted to be disposed in the groove, and the first housing 11 and the second housing 12 are hot-riveted and fixed through a laser hot-riveting process.
It should be noted that the connection structure of the first housing 11 and the second housing 12 is illustrated corresponding to the drawings in the specification, and in the actual use process, the connection mode may also be changed according to the material difference between the first housing 11 and the second housing 12, which is only for better illustrating the present invention and should not be construed as limiting the present invention.
In one embodiment, referring to the attached drawings 1 to 5 in the specification, on the basis of the above embodiments, a connection column 112 is arranged in the first housing 11, the first air hole 111 penetrates through the connection column 112 along the length direction of the connection column 112, one end of the connection column 112 is fixedly connected with the first housing 11, the other end of the connection column 112 is connected with the waterproof plug 3, and one side of the waterproof plug 3 away from the connection column 112 is tightly attached to the inductor 22. Be provided with the support column 113 that the parallel interval of a plurality of set up in the first casing 11, the one end and the first casing 11 fixed connection of a plurality of support column 113, the other end of a plurality of support column 113 is equipped with boss 1131, and the position that circuit board 21 corresponds is provided with mounting hole 211, boss 1131 and mounting hole 211 adaptation connection for circuit board 21 and first casing 11 fixed connection or detachable connection. For example: the circuit board 21 and the connection post 112 are detachably connected in a clamping manner, or the circuit board 21 and the connection post 112 are connected in a gluing or welding manner.
It should be noted that the connection structure of the circuit board 21 and the connection post 112 is illustrated corresponding to the drawings in the specification, and the purpose is to achieve the fixed installation of the circuit board 21, and in the actual use process, other structures may also be used to achieve the fixed installation of the circuit board 21, which is only for better illustrating the present invention and should not be construed as limiting the present invention.
In one embodiment, referring to fig. 1 and 5 of the specification, on the basis of the above embodiment, the sensing assembly 2 includes a circuit board 21, and an inductor 22, an antenna 23 and a power supply 24 which are arranged on the circuit board 21. The circuit board 21 serves as a central processing unit, the sensor 22 is used to obtain pressure information, the antenna 23 may be a bluetooth or rf antenna, and the power source 24 may be a button-type battery. The inductor 22 is disposed on one side of the circuit board 21 and faces the first air hole 111, the antenna 23 is disposed on one side of the circuit board 21 close to the inductor 22, and the power supply 24 is disposed on one side of the circuit board 21 away from the inductor 22. The circuit board 21 is disposed in the middle of the housing 1, and the cavity of the first housing 11 is communicated with the cavity of the second housing 12. The second casing 12 is provided with an inlet 122, and the casing 1 is filled with a filler, which may be an AB glue, through the inlet 122. The injection port 122 may also be vacuumized, sealed and waterproof by connecting a vacuuming device after being filled with the filler, because the cavity of the first housing 11 is communicated with the cavity of the second housing 12, and the first housing 11 is provided with the first air hole 111, the air flow is not easy to generate bubbles during the glue filling process.
For convenience of processing, one end of the first casing 11 away from the second casing 12 is set as a first plane 114, the first air hole 111 is set on the first plane 114, one end of the second casing 12 away from the first casing 11 is set as a second plane 123, and the injection port 122 is set on the second plane 123. In order to improve the connection tightness of the shell 1 and the shell 4, the outer surface of the shell 1 is provided with a plurality of rough parts 13, and the rough parts 13 can be protrusions or grooves. The housing 4 is integrally formed from a thermoplastic material, for example: and putting the shell 1 into a mould to be injected and wrapped with wear-resistant soft rubber to form a shell. When the spherical tire pressure sensor rolls in the air pressure space along with the rotation of the wheel 1, the shell 4 made of the elastic material can reduce the impact force generated on the wheel, thereby protecting the rim and the tire. The shell 4 can also seal and prevent water when playing a damping role, and further improves the waterproofness of the spherical tire pressure sensor.
In the actual use process, the spherical tire pressure sensor is arranged in the air pressure space in the tire, the sensor 22 is communicated with the air pressure space through the waterproof plug 3 and the first air hole 111 and the second air hole 41, when the sensor 22 senses the air pressure in the air pressure space through the waterproof plug 3, the sensor 22 generates a pressure signal and transmits the pressure signal to the circuit board 21, the circuit board 21 receives the pressure signal and transmits the pressure signal outwards in a wireless mode from the antenna 23, the antenna 23 can be wirelessly connected with the electronic control unit of the vehicle, when the electronic control unit receives the pressure signal, the air pressure in the air pressure space is displayed, or when the air pressure in the air pressure space is abnormal, a warning signal is sent out to remind a driver.
In the above embodiment, the installation process of the spherical tire pressure sensor is as follows: firstly, installing the inductor 22, the antenna 23 and the power supply 24 on the circuit board 21, and then welding the circuit board 21 with the supporting column 113 to realize the fixed installation of the induction component 2 and the first shell 11; the first shell 11 and the second shell 12 are matched and buckled, hot riveting and fixing are carried out through a laser hot riveting process, AB glue is filled into the shell 1 through the injection port 122, and then vacuumizing, sealing and waterproofing are carried out through a connecting vacuumizing device; finally, the shell 1 is put into a die to be injected and wrapped with wear-resistant soft rubber to form a shell 4.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or recited in detail in a certain embodiment.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (10)
1. A spherical tire pressure sensor, comprising:
the shell comprises a first shell and a second shell which are connected in a matching manner, and a first air hole penetrating through the first shell is formed in the first shell;
the induction assembly is arranged inside the shell and comprises a circuit board, an inductor, an antenna and a power supply, wherein the inductor, the antenna and the power supply are arranged on the circuit board, and the circuit board is connected with the shell;
the waterproof plug is arranged in the first shell and positioned between the inductor and the first shell, so that the inductor is communicated with the first air hole;
the sealed shell is wrapped on the outer side of the shell, a second air hole penetrating through the shell is formed in the shell, and the second air hole is communicated with the first air hole.
2. The spherical tire pressure sensor of claim 1,
the sensor is characterized in that a connecting column is arranged in the first shell, the first air hole penetrates through the connecting column along the length direction of the connecting column, one end of the connecting column is fixedly connected with the first shell, the other end of the connecting column is connected with the waterproof plug, and one side, far away from the connecting column, of the waterproof plug is tightly attached to the sensor.
3. The spherical tire pressure sensor of claim 2,
the first shell is internally provided with a plurality of support columns which are arranged in parallel at intervals, one ends of the support columns are fixedly connected with the first shell, and the other ends of the support columns are connected with the circuit board.
4. The spherical tire pressure sensor of claim 3,
every the support column is kept away from the one end of first casing is equipped with the boss respectively, the position that the circuit board corresponds is provided with the mounting hole, the boss with mounting hole adaptation is connected, makes the circuit board with first casing fixed connection or detachable connection.
5. The spherical tire pressure sensor according to any one of claims 1 to 4,
the first shell and the second shell are of hemispherical structures respectively, and the first shell and the second shell are fixedly connected or detachably connected.
6. The spherical tire pressure sensor of claim 5,
a flange is arranged on the edge of the first shell, a groove is arranged on the edge of the second shell, the flange is arranged in the groove in a matching mode, and the first shell and the second shell are fixed through hot riveting through a laser hot riveting process;
or a flange is arranged at the edge of the second shell, a groove is formed in the edge of the first shell, the flange is arranged in the groove in an adaptive mode, and the first shell and the second shell are fixed through hot riveting through a laser hot riveting process.
7. The spherical tire pressure sensor of claim 5,
the inductor is arranged on one side of the circuit board and is opposite to the first air hole, the antenna is arranged on one side of the circuit board close to the inductor, and the power supply is arranged on one side of the circuit board far away from the inductor;
the circuit board is arranged in the middle of the shell, and the cavity of the first shell is communicated with the cavity of the second shell.
8. The spherical tire pressure sensor of claim 7,
and the second shell is provided with an injection port, and the second shell is filled with fillers through the injection port.
9. The spherical tire pressure sensor of claim 8,
one end of the first shell, which is far away from the second shell, is arranged as a first plane, and the first air hole is arranged on the first plane;
and/or one end of the second shell, which is far away from the first shell, is arranged as a second plane, and the injection port is arranged on the second plane.
10. The spherical tire pressure sensor of claim 1,
the outer surface of the shell is provided with a plurality of rough parts, and the shell is integrally formed by thermoplastic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123317790.0U CN216331246U (en) | 2021-12-20 | 2021-12-20 | Spherical tire pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123317790.0U CN216331246U (en) | 2021-12-20 | 2021-12-20 | Spherical tire pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216331246U true CN216331246U (en) | 2022-04-19 |
Family
ID=81165799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123317790.0U Active CN216331246U (en) | 2021-12-20 | 2021-12-20 | Spherical tire pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216331246U (en) |
-
2021
- 2021-12-20 CN CN202123317790.0U patent/CN216331246U/en active Active
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