CN1208175A - Tyre pressure detecting alarm - Google Patents
Tyre pressure detecting alarm Download PDFInfo
- Publication number
- CN1208175A CN1208175A CN 97116752 CN97116752A CN1208175A CN 1208175 A CN1208175 A CN 1208175A CN 97116752 CN97116752 CN 97116752 CN 97116752 A CN97116752 A CN 97116752A CN 1208175 A CN1208175 A CN 1208175A
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- circuit
- pressure detecting
- rectification
- tyre pressure
- detecting alarm
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Abstract
Type pressure detecting alarm has one casing with one channel matching air valve of tyre. Inside the casing, there are one tyre pressure measuring pressure sensor, one emitter circuit and one receiver circuit separated from the emitter circuit. The emitter circuit has one power source circuit comprising one power generator, one rectifier, one rechargeable battery pack and one charger circuit; and the power generator has one piezoelectric element connected to the rectifier and the charger and one impact unit, which impacts the piezoelectric element to output AC current by piezoelectric effect.
Description
The present invention relates to a kind of tyre pressure detecting alarm, particularly relate to and a kind ofly advance, in the tyre rotation, can produce electric power voluntarily, the tyre pressure detecting alarm of required power supply when supplying its radiating circuit running at vehicle.
General tire pressure alarming device is mounted on the doughnut, in order to the tire pressure value of sensing tire whether in normal scope, it comprises a radiating circuit and a receiving circuit, this radiating circuit is provided with in the what tyre pressure alarm, and on the configurable what fascia of this receiving circuit so as what observe, when this radiating circuit senses the pressure of tire value be not in normal range, when just the tire pressure value is too high or too low, this radiating circuit can be sent with radio signal, and receive and pick out the source of radio signal by this receiving circuit, demonstrate or can give the alarm simultaneously, just can know it is that the tire pressure of which tire or which tire is too high or too low.The receiving circuit of tyre pressure alarm in the past is because of being to be configured in the vehicle, so, required power supply generally is to use automobile power source during this receiving circuit running, and this radiating circuit because be arranged in the tyre pressure alarm installs on the what tire again, so required power supply generally is to use the electric battery (being in series by mercury battery or lithium battery) of installing in the what tyre pressure alarm during this radiating circuit running.But when the battery power of tyre pressure alarm exhausted in the past, the battery that must more renew just can make the radiating circuit normal operation of this tyre pressure alarm, and was very inconvenient.
Purpose of the present invention provides a kind of at what and advances at vehicle, in the tyre rotation, can produce the tyre pressure detecting alarm of electric power voluntarily, and required power supply during for radiating circuit running that should tyre pressure detecting alarm need not expend the electric power that uses other.
For achieving the above object, the present invention takes following scheme:
Tyre pressure detecting alarm of the present invention, it is characterized in that by a setting of Blast Furnace Top Gas Recovery Turbine Unit (TRT) voluntarily, vehicle is being advanced, in the time of tyre rotation, this voluntarily the crash unit of Blast Furnace Top Gas Recovery Turbine Unit (TRT) will constantly clash into its piezoelectric element, and the generation piezoelectric effect, and output AC electricity electric power, right Hou is a direct current through a rectification and charging circuit rectification, just electric power can be exported this rechargeable battery set, and the radiating circuit required power supply of when running of supply tyre pressure detecting alarm, need not expend fully by this and use other any electric power, not only can reduce expenditure, and must not change electric battery.
Tyre pressure detecting alarm of the present invention, be in order to passage this tyre pressure detecting alarm to be installed on this inside tires or the valve with the cranked tire valve phase configuration by set on its shell body, when the tire pressure in the tire enters in the shell body via this passage, in this shell body, be provided with at least one pressure sensor, one radiating circuit and one separates the receiving circuit of setting with this radiating circuit, the power circuit of required power supply when this radiating circuit can be supplied the running of whole radiating circuit, this power circuit comprises a chargeable electric battery, rectification and charging circuit and one is Blast Furnace Top Gas Recovery Turbine Unit (TRT) voluntarily, this voluntarily Blast Furnace Top Gas Recovery Turbine Unit (TRT) comprise a piezoelectric element and a crash unit that electrically connects with this rectification and charging circuit, when vehicle is advanced, during tyre rotation, make this crash unit constantly clash into this piezoelectric element, and the generation piezoelectric effect, and output AC, be direct current through this rectification and charging circuit rectification then, and to this batteries charging.
The tyre pressure detecting alarm of automobile of the present invention, on a shell body, be provided with can with the passage of tire or cranked tire valve phase configuration, in shell body, be provided with and comprise a pressure sensor, that can record tire pressure and will record radiating circuit and that tire pressure sends with radio signal and separate with radiating circuit and be provided with and pick out radio signal source and numerical value, and the receiving circuit that demonstrates or give the alarm simultaneously, this radiating circuit has the power circuit that a whole radiating circuit of supply operates required power supply, it is characterized in that:
Described power circuit comprises one, and Blast Furnace Top Gas Recovery Turbine Unit (TRT), one are the charging circuit of galvanic rectification circuit, a rechargeable battery set and a pair of batteries charging with AC rectification voluntarily; Blast Furnace Top Gas Recovery Turbine Unit (TRT) comprises that a piezoelectric element that electrically connects with rectification and charging circuit and one can hit piezoelectric element and produces the crash unit of piezoelectric effect and output AC electricity voluntarily.
The present invention is described in detail below in conjunction with drawings and Examples:
Description of drawings:
Fig. 1 is the assembled sectional view of the present invention's first preferred embodiment.
Fig. 2 is the block scheme of the above-mentioned preferred embodiment radiating circuit of the present invention.
Fig. 3 is the block scheme of the above-mentioned preferred embodiment receiving circuit of the present invention.
Fig. 4 is the circuit diagram of the above-mentioned preferred embodiment power circuit of the present invention.
Fig. 5 is the assembled sectional view of the present invention's second preferred embodiment.
Fig. 6 is the assembled sectional view of the present invention's the 3rd preferred embodiment.
Fig. 7 is the fixing front schematic view of belt body.
Fig. 8 is that the fixedly belt body of Fig. 7 sets firmly synoptic diagram on the steel ring in the what tire with the tyre pressure detecting alarm of above-mentioned the 3rd preferred embodiment of the present invention.
Fig. 9 is the synoptic diagram that the tyre pressure detecting alarm of above-mentioned the 3rd preferred embodiment of the present invention cooperates with the location pedestal.
Figure 10 is that the location pedestal makes tyre pressure detecting alarm set firmly synoptic diagram on the steel ring in the what tire in above-mentioned the 3rd preferred embodiment of the present invention.
As shown in Figure 1, tyre pressure detecting alarm of the present invention is provided with a path 10 0 that disposes mutually with inside tires or valve (figure does not show) on its shell body 10, path 10 0 and a hollow push rod 200 connect, when the inside or the caution of the corresponding respectively locking tire pressure of its valve of several tires of vehicle detects warning device 1 Hou, tire pressure in the tire just can enter in the shell body 10 via path 10 0, in shell body 10, form first accommodation chamber 11 that communicates with path 10 0, and above shell body 10 cover cap 15 of corresponding screw lock, cover cap 15 is embedded with a dividing plate 14 near the bottom, between cover cap 15 and dividing plate 14, form one second accommodation chamber 12, be provided with a printed circuit board (PCB) 13 in first accommodation chamber 11, and on printed circuit board (PCB) 13, be provided with the pressure sensor 20 that can respond to tire pressure by one, reach the radiating circuit of being formed with other electronic components 2.As shown in Figure 2, radiating circuit 2 comprises one can supply the power circuit 3 that entire circuit operates required power supply, one by a pressure sensor 20 sensing tire pressures, and export the pressure-sensing unit 21 of the magnitude of voltage (for simulating signal) of a corresponding tire pressure, one can be the signal converter 22 of digital signal output with the analog signal conversion of 21 inputs from the pressure-sensing unit, and one can with the digital signal encoding of this signal converter 22 outputs and with its in three value of examining of setting coding unit 23 of making comparisons, result relatively is if tire pressure value when too high or too low, can be converted to a radio signal through a radio conversion unit 24 sends (because radiating circuit is identical with conventional art, so be not described in detail), and receive by a receiving circuit 4 (as Fig. 3) that is installed on the Vehicular instrument panel.As shown in Figure 3, receiving circuit 4 comprises can supply the second source feeding mechanism 44 that entire circuit operates required power supply, the radio signal receiving element 40 that can receive the radio signal of being exported from radiating circuit 2, the decoding unit 41 that radio signal can be decoded and export a control signal, and tire with vehicle is corresponding also can number show the display unit 42 of each pressure of tire state receiving control signal that decoding unit 41 exports, or give the alarm simultaneously via a warning system 43, can know it is the tire pressure too high or too low (because receiving circuit is identical with conventional art, so be not described in detail) of which tire or those several tires.
Shown in Fig. 2,4, radiating circuit 2 mainly is that it operates required power supply by a power circuit 3 supply, and power circuit 3 comprises a rechargeable battery pack 30, and power circuit 3 more comprises a Blast Furnace Top Gas Recovery Turbine Unit (TRT) 31 voluntarily, and rectification and charging circuit 32.
Blast Furnace Top Gas Recovery Turbine Unit (TRT) 31 is located in second accommodation chamber 12 voluntarily, comprise a piezoelectric element 311 and a crash unit 312, in the present embodiment, piezoelectric element 311 is to adopt piezoelectric ceramics (piezoelectric ceramic), cooperate shown in Figure 1, piezoelectric element 311 neighbours establish the dividing plate 14 of what second accommodation chamber 12 bottoms, on dividing plate 14, be provided with a perforation 140, the rectification on the printed circuit board (PCB) 13 of two lead 310 to first accommodation chambers 11 of piezoelectric element 311 connections and the input end of charging circuit 32, both are electrically connected, the crash unit 312 of in second accommodation chamber 12 and on the piezoelectric element 311, packing into and constituting by 10～20 little steel balls, therefore, when vehicle is advanced, in the time of wheel rolling, crash unit 312 can constantly be clashed into this piezoelectric element 311, with the generation piezoelectric effect, and output power (alternating current) is to the input end of rectification and charging circuit 32.
Rectification and charging circuit 32 comprise a full-wave rectifying circuit 320 and a charging circuit 321; full-wave rectifying circuit 320 is made of four diode D1～D4; use to be direct current from the AC rectification of these piezoelectric element 311 outputs; charging circuit 321 comprises an electric power storage unit 322; a current limiting element 323 and a protecting component 324; electric power storage unit 322 is capacitor C1; can make in the temporary what electric power storage unit 322 of the direct current of full-wave rectifying circuit 320 outputs; right Hou is passed through current limiting element 323 (being a current-limiting resistance R3) and the magnitude of current of limit battery group 30 chargings again; protecting component 324 (being a diode D6) provides a voltage limit, can avoid electric battery 30 to charge excessive and damage radiating circuit 2.
From the above, when the voltage from node a, the b of rectification and charging circuit 32 output is 0 volt (V), make entire circuit enter sleep pattern, and the power consumption of total system drops to below 6 microamperes (μ A), that is to say stationary vehicle Hou, Blast Furnace Top Gas Recovery Turbine Unit (TRT) 31 just can output power voluntarily, and forms the state of outage, can save electric power.
The mode that Blast Furnace Top Gas Recovery Turbine Unit (TRT) voluntarily 31 of the present invention is arranged on tyre pressure detecting alarm 1 is not limit the state shown in first preferred embodiment of what Fig. 1, it also can be the state shown in second preferred embodiment of Fig. 5, make the protrusion place 150 of piezoelectric element 311 ' the be arranged on cover cap 15 ' internal face of a tubulose ' and inner newel 151 ' outside wall surface, and cover cap 15 ' in insert the crash unit 312 that constitutes by 10～20 little steel balls, with increase piezoelectric element 311 ' with the bump contact area of crash unit 312, and make the electric power increase of this piezoelectric element 311 ' be impacted at every turn and exported.
The tyre pressure detecting alarm of first and second preferred embodiment of the present invention is to use pressure sensor 20 sensing tire pressures, it is " electronic type induction ", the present invention also can be as shown in Figure 6 in addition, come the sensing tire pressure with " mechanical type structure ", and tyre pressure detecting alarm 5 is to be installed on the steel ring of vehicle tyre (shown in Fig. 7,8) by a stationary installation.
As Fig. 6, shown in 8, tyre pressure detecting alarm 5 is provided with an air hole 500 on housing 50, tire pressure in the tire 8 is entered in the housing 50 via air hole 500, a pressure-sensing and transmitter unit are set in housing 50, this pressure-sensing and transmitter unit are the United States Patent (USP)s of being invented with this case applicant the 5th, 289,161 notification numbers are embodiment, comprise a rubber-like pressure-bearing film 60, the push rod 61 of what pressure-bearing film 60 tops, a position, the compression spring 62 that push rod 61 restoring forces can be provided, a first circuit board 63, a second circuit board 64 and an emitter apparatus 65, first circuit board 63 is provided with one first conductive reed 630, second circuit board 64 is provided with one second conductive reed 640 and one the 3rd conductive reed 641, the electric Blast Furnace Top Gas Recovery Turbine Unit (TRT) voluntarily 66 that is connected with required power supply when emitter apparatus 65 running can be provided on second circuit board 64, because pressure-sensing and transmitter unit 6 make flowing mode to disclose the above-mentioned United States Patent (USP) of what, so narration no longer in detail.
As shown in Figure 6, the structure of Blast Furnace Top Gas Recovery Turbine Unit (TRT) 66 and operating principle are described identical with first and second preferred embodiment voluntarily, comprise a piezoelectric element 660 and a crash unit 661, when vehicle is advanced, wheel rolling the time, crash unit 661 can constantly be clashed into piezoelectric element 660, to produce piezoelectric effect, and output power (being alternating current), right Hou is that direct current uses for emitter apparatus 65 runnings via a rectification and a charging circuit (figure does not show) that is located on the second circuit board 64 with AC rectification.
As shown in Figure 7, stationary installation is the elastomeric belt body 70 that two ends have hook fastener 700, and on the bottom outer rim of tyre pressure detecting alarm 5 housings 50 and lid 51 (as shown in Figure 6), form can be subjected to elastomeric belt body 70 snappings wear pilot hole 52, make the elastomeric belt body 70 can be as shown in Figure 8, latch closure what axle is located on the steel ring 80 in the tire 8 of vehicle axletree both sides, tyre pressure detecting alarm 5 being fixed on the steel ring 80 in the tire 8, and make tyre pressure detecting alarm 5 sensing tire pressure at any time.
As Fig. 9, shown in 10, when tyre pressure detecting alarm 5 is implemented in installing, stationary installation also can be the location pedestal 71 on the steel ring 80 of a solid welding in tire 8, location pedestal 71 is provided with one second interlocking portion 710 (being internal thread), and the first interlocking portion 53 that tyre pressure detecting alarm 5 moulding and second interlocking portion 710 outside the air hole 500 of housing 50 bottoms cooperatively interact (for external thread), tyre pressure detecting alarm 5 can be consolidated in the second interlocking portion 710 of locating pedestal 71 by these first interlocking portion, 53 spiral shells, make tyre pressure detecting alarm 5 sensing tire pressure at any time.
In sum, the present invention has following effect:
Tyre pressure detecting alarm of the present invention is the setting by automatic generating plant 31, and rectification and filling The cooperation of electricity circuit 32 is so that when vehicle is advanced, tyre rotation the time, just can produce voluntarily electric power, and supply Required power supply during radiating circuit running that should tyre pressure detecting alarm need not expend use other any fully Electric power not only can reduce the electric power expenditure, and must not change battery pack.
Claims (5)
1. tyre pressure detecting alarm, on a shell body, be provided with can with the passage of tire or cranked tire valve phase configuration, in shell body, be provided with and comprise a pressure sensor, that can record tire pressure and will record radiating circuit and that tire pressure sends with radio signal and separate with radiating circuit and be provided with and pick out radio signal source and numerical value, and the receiving circuit that demonstrates or give the alarm simultaneously, this radiating circuit has the power circuit that a whole radiating circuit of supply operates required power supply, it is characterized in that:
Described power circuit comprises one, and Blast Furnace Top Gas Recovery Turbine Unit (TRT), one are the charging circuit of galvanic rectification circuit, a rechargeable battery set and a pair of batteries charging with AC rectification voluntarily; Blast Furnace Top Gas Recovery Turbine Unit (TRT) comprises that a piezoelectric element that electrically connects with rectification and charging circuit and one can hit piezoelectric element and produces the crash unit of piezoelectric effect and output AC electricity voluntarily.
2. according to tyre pressure detecting alarm as claimed in claim 1, it is characterized in that:
The piezoelectric element of described Blast Furnace Top Gas Recovery Turbine Unit (TRT) voluntarily adopts piezoelectric ceramics.
3. tyre pressure detecting alarm according to claim 1 is characterized in that:
The crash unit of described Blast Furnace Top Gas Recovery Turbine Unit (TRT) voluntarily comprises at least two steel balls.
4. tyre pressure detecting alarm according to claim 1 is characterized in that:
It is galvanic electric power storage unit through rectification that described rectification and charging circuit more comprise the alternating electromotive force that can keep in from described piezoelectric element output.
5. tyre pressure detecting alarm according to claim 1 is characterized in that:
Described rectification and charging circuit more comprise a protecting component that can provide voltage limit and avoid the described radiating circuit of the excessive damage of described batteries charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97116752 CN1208175A (en) | 1997-08-13 | 1997-08-13 | Tyre pressure detecting alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97116752 CN1208175A (en) | 1997-08-13 | 1997-08-13 | Tyre pressure detecting alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1208175A true CN1208175A (en) | 1999-02-17 |
Family
ID=5174073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97116752 Pending CN1208175A (en) | 1997-08-13 | 1997-08-13 | Tyre pressure detecting alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1208175A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368214C (en) * | 2002-10-01 | 2008-02-13 | 皮尔泰克有限公司 | Telemetry unit |
| CN100514693C (en) * | 2003-12-29 | 2009-07-15 | 倍耐力轮胎公司 | Method and system for generating electrical energy within a vehicle tyre |
-
1997
- 1997-08-13 CN CN 97116752 patent/CN1208175A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368214C (en) * | 2002-10-01 | 2008-02-13 | 皮尔泰克有限公司 | Telemetry unit |
| CN100514693C (en) * | 2003-12-29 | 2009-07-15 | 倍耐力轮胎公司 | Method and system for generating electrical energy within a vehicle tyre |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |