CN207772803U - A kind of power generating type tire pressure sensing device and tire pressure monitoring system - Google Patents
A kind of power generating type tire pressure sensing device and tire pressure monitoring system Download PDFInfo
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- CN207772803U CN207772803U CN201721804871.4U CN201721804871U CN207772803U CN 207772803 U CN207772803 U CN 207772803U CN 201721804871 U CN201721804871 U CN 201721804871U CN 207772803 U CN207772803 U CN 207772803U
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Abstract
The utility model discloses a kind of power generating type tire pressure sensing device and tire pressure monitoring system, wherein sensing device is placed in tire, including：Sensor assembly, measure tire pressure and with extraneous wireless telecommunications, outer sphere, inside is formed with accommodating chamber, and the first venthole of accommodating chamber perforation is provided on its surface, interior spheroid, radial dimension is less than accommodating chamber, interior spheroid is movably set in accommodating chamber, sensor assembly is installed in inside interior spheroid, the second venthole be connected with sensor assembly is provided on interior spheroid surface, electricity generation module, including magnetic induction loop and magnetic material, magnetic material is arranged in outer sphere or is an outer sphere part, magnetic induction loop, which is installed in interior spheroid, generates induced electromotive force, and, power conversion module, it powers into sensor assembly after induced electromotive force is converted.It can be produced electricl energy by electromagnetic induction and be powered for sensing device, solve the powerup issue of existing battery, while improve the stability of transmitting antenna transmitting.
Description
Technical field
The utility model is related to vehicle tires monitoring system field, especially a kind of power generating type tire pressure sensing device and
Tire pressure monitoring system.
Background technology
System for monitoring pressure in tyre (TPMS) is the safety monitored in real time to information such as tire pressure, the temperature of vehicle
Device.It directly measures air pressure, temperature and the battery capacity of tire using the sensor mounted on each wheel tyre cavity, works as wheel
Air pressure less than main engine plants recommend tire cold conditions pressure 25%, or less than the pressure listed in regulation minimum value when,
TPMS warning reminding drivers.The security performance of high vehicle speeds is improved with this, is reduced to the maximum extent quick-fried on highway
Tire accident.
Most of tyre pressure sensor currently on the market is all made of battery powered, by process for filling colloid by battery and circuit board
It is encapsulated in shell, the shortcomings that battery can not be replaced, the structure is：It is very inconvenient to replace battery, is often needed after battery has consumed
Replace entire tyre pressure sensor.In addition in energy content of battery deficiency, the transmission power of transmitting antenna is insufficient, be easy to cause data
It loses.
Invention content
The purpose of this utility model is to provide a kind of power generating type tire pressure sensing device and tire pressure monitoring system, can pass through electromagnetism
Induction produces electricl energy powers for sensing device, solves the powerup issue of existing battery, while improving transmitting antenna transmitting
Stability.
The technical scheme that the utility model is provided is as follows：A kind of power generating type tire pressure sensing device, is placed in tire, feature
It is, further comprises：
Sensor assembly, measure tire pressure and with extraneous wireless telecommunications,
Outer sphere, inside are formed with accommodating chamber, and the first venthole of the accommodating chamber perforation is provided on its surface,
Interior spheroid, and its radial dimension is less than the accommodating chamber, the interior spheroid is movably set in the accommodating chamber, institute
It states sensor assembly to be installed in inside the interior spheroid, is provided on the interior spheroid surface and is connected with the sensor assembly
Second venthole,
Electricity generation module, including magnetic induction loop and magnetic material, the magnetic material are arranged in the outer sphere or are
The outer sphere part, the magnetic induction loop, which is installed in the interior spheroid, generates induced electromotive force, and,
Power conversion module is powered after converting the induced electromotive force into the sensor assembly.
The technical program is provided with the magnetic material to form magnetic field on outer sphere, and interior spheroid is movably arranged in outer sphere
In the accommodating chamber in portion, and interior spheroid is internally provided with the magnetic induction loop moved therewith, and outer sphere can be with the quality of interior spheroid
And stressing conditions are different, the motion state under the drive of tire is different, and then relative motion occurs, then the coil in interior spheroid
Magnetic flux in the magnetic field that outer sphere magnetic material is formed can change, and then generate induced electromotive force, be converted through power supply
Can be that sensor assembly is powered after module.
Preferably, the interior spheroid is roly-poly type structure.
The technical program, interior spheroid have the tendency that reverting to equilibrium state and action, the relative motion occurred with outer sphere
Amplitude bigger, the induced electromotive force accordingly generated is bigger, namely power generation is more.、
Preferably, further comprise energy-storage module, respectively with the power conversion module and the sensor assembly
Electrical connection.
Specifically, the power conversion module be regulator rectifier circuit, for by the induced electromotive force rectification, filtering and
Switch to direct current after voltage stabilizing.
Specifically, the sensor assembly includes sensor, circuit board and transmitting antenna.
Preferably, several balls are placed between the outer sphere and the interior spheroid.
The technical program, interior spheroid are rolled by rolling friction in outer sphere, it is possible to reduce interior spheroid is in outer sphere
Movable resistance is able to be restored to equilibrium state faster, and the direction of transmitting antenna may make to change smaller.
Specifically, the inner surface that the ball is uniformly installed in the accommodating chamber forms spherical surface.
Specifically, the interior spheroid includes counterweight part and encapsulation part, the quality of the counterweight part is more than the encapsulation part, and
The volume of the counterweight part is less than the encapsulation part；Wherein,
The sensor assembly is encapsulated into the encapsulation part.
Specifically, the sphere is two parts without the plane separation of the centre of sphere, the wherein larger part of volume is institute
Encapsulation part is stated, the part of small volume is the counterweight part.
Specifically, the vertical line when interior spheroid is in stable state by its center of gravity is balanced line；
The transmitting antenna is annular shape, and the vertical line of plane where annulus is parallel with the balanced line.
The technical program, when interior spheroid is when inside tires are rotated relative to its balanced line, moreover it is possible to ensure antenna launch angle
Constant, which should be adapted with the receiver in monitoring system, can effectively improve signal strength and stability.
A kind of tire pressure monitoring system is also disclosed in the utility model, be suitable for include tire transfer tool, including it is above-mentioned
Power generating type tire pressure sensing device, the power generating type tire pressure sensing device are located in the tire
A kind of power generating type tire pressure sensing device and tire pressure monitoring system provided by the utility model, can bring it is following at least
A kind of advantageous effect：
1, the magnetic coil and magnetic induction loop for generating magnetic field is respectively set on outer sphere and interior spheroid, by interior spheroid and outside
The relative motion of sphere generates the induced electromotive force of power supply, and interior spheroid is further designed as roly-poly type structure, restores
The amplitude of relative motion between interior outer sphere can be increased to the movement tendency of equilibrium state, and then increases the power generating type tire pressure
The power supply capacity of sensing device.
2, energy-storage module is set, the electric energy that when tyre rotation generates can be partly stored in energy-storage module, tire not
It is used when rotation or slower rotation, certain electric power reallocation function can be played.
3, the shape of sensing device is designed as spherical shape, its position is made to maintain in tire under its own gravity drive
Near at minimum point, and then ensure that the relative position of sensing device and tire remains unchanged or keep small change amplitude,
Measuring state is more stablized.
4, sphere is double spherical structures of suit, and interior spheroid can be movable in outer sphere, and it is tumbler structure so that interior
It is swung near equilibrium state always on the vertical direction of sphere, and interior spheroid is designed as to circular ring shape parallel to the ground, it can
It is effective to improve signal strength and stability to ensure that antenna launch angle is constant or keep small change amplitude.
5, interior spheroid is rolled by rolling friction in outer sphere, it is possible to reduce interior spheroid movable resistance in outer sphere
Power is able to be restored to equilibrium state faster, and the direction of transmitting antenna may make to change smaller.
Description of the drawings
Below by a manner of clearly understandable, preferred embodiment is described with reference to the drawings, to power generating type tire pressure sensing device
And above-mentioned characteristic, technical characteristic, advantage and its realization method of tire pressure monitoring system are further described.
Fig. 1 is the planar structure schematic diagram of power generating type tire pressure sensing device.
Fig. 2 is that power generating type tire pressure sensing device is placed in working state schematic representation in tire.
Drawing reference numeral explanation：100, power generating type tire pressure sensing device, 101, power conversion module, 102, energy-storage module,
110, circuit board, 120, transmitting antenna, 200, outer sphere, the 210, first venthole, 300, interior spheroid, 310, counterweight part, 320,
Encapsulation part, the 330, second venthole, 400, ball, 500, tire, 510, wheel hub, 600, magnetic induction loop.
Specific implementation mode
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, attached drawing will be compareed below
Illustrate specific embodiment of the present utility model.It should be evident that the accompanying drawings in the following description is only the one of the utility model
A little embodiments for those of ordinary skill in the art without creative efforts, can also be according to these
Attached drawing obtains other attached drawings, and obtains other embodiments.
To make simplified form, in each figure only schematically show with the relevant part of the utility model, they are simultaneously
Its practical structures as product is not represented.
Embodiment one
As shown in Figure 1, the present embodiment discloses a kind of power generating type tire pressure sensing device, it can be placed directly in tire and use,
Including sensor assembly, outer sphere 200, interior spheroid 300, electricity generation module and power conversion module 101.
Sensor assembly to measure tire pressure and with extraneous wireless telecommunications.Accommodating chamber is formed with inside outer sphere 200, and
It is provided with the first venthole 210 of accommodating chamber perforation, interior spheroid 300, and its radial dimension on its surface and is less than accommodating chamber, interior ball
Body 300 is movably set in accommodating chamber, and sensor assembly is installed in inside interior spheroid 300, be provided on 300 surface of interior spheroid with
Second venthole 330 of sensor assembly conducting.Illustratively, the phase on outer spherome surface can be arranged in the first venthole 210
At certain angle position, to adapt to the relative motion of interior spheroid 300 and outer sphere 200.
Electricity generation module includes magnetic induction loop 600 and magnetic material, and magnetic material setting is in outer sphere 200 or is ectosphere
200 part of body, magnetic induction loop 600, which is installed in interior spheroid 300, generates induced electromotive force.Namely it is provided on outer sphere 200
The magnetic material in magnetic field is formed, illustratively, forms the poles N and the poles S in Fig. 1 after magnetic material arrangement.300 activity of interior spheroid is set
It sets in the accommodating chamber inside outer sphere 200, and interior spheroid 300 is internally provided with the magnetic induction loop 600 moved therewith, outside
Sphere 200 can be different from the quality of interior spheroid 300 and stressing conditions, and the motion state difference under the drive of tire occurs opposite
Movement, then magnetic flux of the coil in interior spheroid 300 in the magnetic field that 200 magnetic material of outer sphere is formed can change, into
And induced electromotive force is generated, can be that sensor assembly is powered after power conversion module 101.Illustratively, interior spheroid 300 is not
The formula of falling father-in-law structure.Interior spheroid 300 has the tendency that reverting to equilibrium state and action, the relative motion width occurred with outer sphere 200
Bigger is spent, the induced electromotive force accordingly generated is bigger, namely power generation is more.
Sensor assembly includes sensor 130, circuit board 110 and transmitting antenna 120, is installed in interior spheroid 300,
Sensor 130 is connected into the circuit of circuit board 110, magnetic induction loop 600 via power conversion module 101 convert after with circuit board
The power input of processing circuit on 110 is electrically connected to be powered, transmitting antenna 120 and the processing electricity on circuit board 110
With the metrical information of transmission sensor 130, sensor 130 can also have in addition to having and measuring pressure functional for road output end electrical connection
Measuring temperature function.The second venthole on interior spheroid 300 is conducted to sensor 130 to be convenient for measuring.
The function of power conversion module 101 is powered into sensor assembly after converting induced electromotive force, because of interior ectosphere
The waveform of body relative motion generation induced electromotive force is usually unordered and fluctuation is larger, can not be directly to power, thus needs
It is powered again after wanting power conversion module 101 to be adjusted.Illustratively, the power conversion module is rectifying and voltage-stabilizing electricity
Road is electrically connected after direct current for will switch to after the induced electromotive force rectification, filtering and voltage stabilizing with circuit board 110.
The shape of spherical tire pressure sensing device be set as can free rolling spherical structure, it can directly be placed such as tire
In, as shown in Fig. 2, spherical tire pressure sensing device 100 is located in the space of tire 500 and wheel hub 510, in tire rotary course
In, allow its position by rolling near at the minimum point maintained in tire under its own gravity drive, and then ensure
The relative position of sensing device and tire remains unchanged or keeps small change amplitude, measuring state more to stablize.
Preferably, power generating type tire pressure sensing device further comprises energy-storage module 102, respectively with power conversion module
101 and sensor assembly electrical connection.The electric energy that magnetic induction loop generates when tyre rotation can be partly stored in energy-storage module,
It is used when tire does not rotate or rotates slower, certain electric power reallocation function can be played.
Embodiment two
On the basis of embodiment one, several balls 400 are placed between outer sphere 200 and interior spheroid 300.Interior spheroid
300 are rolled by rolling friction in outer sphere 200, it is possible to reduce the movable resistance in outer sphere 200 of interior spheroid 300 obtains
To be restored to equilibrium state faster, the direction of transmitting antenna 120 may make to change smaller.It is further preferred that ball 400 is equal
The even inner surface for being installed in accommodating chamber forms spherical surface.
Exemplary, interior spheroid 300 is divided into two parts by the plane without the centre of sphere, and the wherein larger part of volume is envelope
The part in dress portion 320, small volume is counterweight part 310, and the quality of counterweight part 310 is more than encapsulation part 320, then interior spheroid shape
At a tumbler structure, center of gravity is located at the lower section of the centre of sphere under placement state in Fig. 1, then so that sphere is disturbed in tyre rotation
When dynamic, interior spheroid 300 has the movement tendency for restoring center of gravity in extreme lower position, and then drives transmitting antenna thereon to specified angle
Degree.Similar, encapsulation part 320 and counterweight part 310 can be not limited to and be divided into without the plane of the centre of sphere in interior spheroid
Two-part dividing mode, the quality that need to only meet counterweight part 310 is more than encapsulation part 320, and the volume of counterweight part 310 is less than envelope
Dress portion 320, so that it may which to form tumbler structure, encapsulation part 320 is formed for plastic packaging, can be by power supply 102, sensing during plastic packaging
Device 130, circuit board 110 and transmitting antenna 120 are packaged in inside it.
Vertical line when interior spheroid 300 is in stable state by its center of gravity is balanced line, i.e., when interior spheroid is in equilibrium state
The balanced line is directed vertically to ground, forced direction of attaching most importance to, namely during tyre rotation, and interior spheroid 300 can always
It maintains balanced line vertical or close to vertical state, this can ensure that the direction of transmitting antenna 120 will not emit larger change
Change.It is further preferred that transmitting antenna 120 is annular shape, and the vertical line of plane where annulus is parallel with balanced line.Then interior spheroid
300 when inside tires are rotated relative to its balanced line, moreover it is possible to ensure that antenna launch angle is constant, which should be with monitoring
Receiver in system is adapted, and can effectively improve signal strength and stability.
A kind of tire pressure monitoring system is also disclosed in the utility model, includes the power generating type tire pressure sensing of previous embodiment one, two
Device, power generating type tire pressure sensing device are located in tire.Suitable for the transfer tool including tire.
It should be noted that above-described embodiment can be freely combined as needed.The above is only the utility model
Preferred embodiment, it is noted that for those skilled in the art, do not departing from the utility model principle
Under the premise of, several improvements and modifications can also be made, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (9)
1. a kind of power generating type tire pressure sensing device, is placed in tire, which is characterized in that including：
Sensor assembly, measure tire pressure and with extraneous wireless telecommunications,
Outer sphere, inside are formed with accommodating chamber, and the first venthole of the accommodating chamber perforation is provided on its surface,
Interior spheroid, radial dimension are less than the accommodating chamber, and the interior spheroid is movably set in the accommodating chamber, the sensor
Module is installed in inside the interior spheroid, and the second ventilation be connected with the sensor assembly is provided on the interior spheroid surface
Hole,
Electricity generation module, including magnetic induction loop and magnetic material, the magnetic material are arranged in the outer sphere or are described
An outer sphere part, the magnetic induction loop, which is installed in the interior spheroid, generates induced electromotive force, and,
Power conversion module is powered after converting the induced electromotive force into the sensor assembly.
2. power generating type tire pressure sensing device according to claim 1, which is characterized in that the interior spheroid is roly-poly type knot
Structure.
3. power generating type tire pressure sensing device according to claim 2, it is characterised in that：
The power generating type tire pressure sensing device further comprises energy-storage module, respectively with the power conversion module and described
Sensor assembly is electrically connected；
And/or；
The power conversion module is regulator rectifier circuit, for will switch to after the induced electromotive force rectification, filtering and voltage stabilizing
Direct current；
And/or；
The sensor assembly includes sensor, circuit board and transmitting antenna.
4. according to any power generating type tire pressure sensing devices of claim 1-3, which is characterized in that the outer sphere with it is described
Several balls are placed between interior spheroid.
5. power generating type tire pressure sensing device according to claim 4, which is characterized in that the ball is uniformly installed in described
The inner surface of accommodating chamber forms spherical surface.
6. power generating type tire pressure sensing device according to claim 2 or 3, which is characterized in that the interior spheroid includes counterweight
The quality of portion and encapsulation part, the counterweight part is more than the encapsulation part, and the volume of the counterweight part is less than the encapsulation part；Its
In,
The sensor assembly is encapsulated into the encapsulation part.
7. power generating type tire pressure sensing device according to claim 6, which is characterized in that the sphere is by without the centre of sphere
Plane separation is two parts, and wherein the larger part of volume is the encapsulation part, and the part of small volume is the counterweight part.
8. power generating type tire pressure sensing device according to claim 2 or 3, which is characterized in that the interior spheroid is in stable state
When vertical line by its center of gravity be balanced line；
The sensor assembly includes transmitting antenna, and the transmitting antenna is circular, and the vertical line of plane and institute where annulus
It is parallel to state balanced line.
9. a kind of tire pressure monitoring system, suitable for including the transfer tool of tire, which is characterized in that including according to claim 1-
8 any power generating type tire pressure sensing devices, the power generating type tire pressure sensing device are located in the tire.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721804871.4U CN207772803U (en) | 2017-12-21 | 2017-12-21 | A kind of power generating type tire pressure sensing device and tire pressure monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721804871.4U CN207772803U (en) | 2017-12-21 | 2017-12-21 | A kind of power generating type tire pressure sensing device and tire pressure monitoring system |
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| CN207772803U true CN207772803U (en) | 2018-08-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107933220A (en) * | 2017-12-21 | 2018-04-20 | 上海为彪汽配制造有限公司 | A kind of power generating type tire pressure sensing device and tire pressure monitoring system |
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2017
- 2017-12-21 CN CN201721804871.4U patent/CN207772803U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107933220A (en) * | 2017-12-21 | 2018-04-20 | 上海为彪汽配制造有限公司 | A kind of power generating type tire pressure sensing device and tire pressure monitoring system |
| CN107933220B (en) * | 2017-12-21 | 2023-10-27 | 上海为彪汽配制造有限公司 | Power generation type tire pressure sensing device and tire pressure monitoring system |
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