CN2220954Y - Tyre pressure alarm - Google Patents
Tyre pressure alarm Download PDFInfo
- Publication number
- CN2220954Y CN2220954Y CN 95202339 CN95202339U CN2220954Y CN 2220954 Y CN2220954 Y CN 2220954Y CN 95202339 CN95202339 CN 95202339 CN 95202339 U CN95202339 U CN 95202339U CN 2220954 Y CN2220954 Y CN 2220954Y
- Authority
- CN
- China
- Prior art keywords
- receiver
- emitter
- tyre
- utility
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Arrangements For Transmission Of Measured Signals (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The utility model provides a tyre pressure alarm, which comprises a radio transmitter and a receiver. The transmitter whose power supply circuit is switched on by a bellow transmits signals; a transmitting line directly switches on a vehicle body; the signals are transmitted by the vehicle body to a driving cabin; the receiver receives the signals and carries out alarm. The utility model directly utilizes the vehicle body as a transmission line, and has the advantages of less loss of signal transmission, good anti-interference performance and reliable work. The utility model is suitable for pressure-shortage alarm of motor vehicle tyre, particularly trailer tyre.
Description
The utility model belongs to the warning device of tire for vehicles, is specifically related to a kind of radio alarming device of roller tire pressure sensing.
In the motor-driven vehicle going, tire is impaired under-voltage most important to traffic safety, the tire running situation of tractor-trailer particularly, and chaufeur more is difficult to timely grasp, very easily forms accident potential.In the known technology, tyre underpressure is reported to the police, and generally can be divided into two classes.One class is a machinery spy formula, relies on the relative displacement of car body when tyre underpressure, conducting wired alarming circuit.This type of device is influenced by the road conditions injustice, very easily causes flase alarm, and wire transmission mode, and its wiring is numerous and diverse, and practicality is restricted.Another kind of is that wireless transmission 1 receives annunciator, it all need set up emitting antenna, and as CN1042333 number " warning device for loss of tyre pressure " disclosed technical scheme, its emitting antenna is pulled in signalling generator outer end one and is fixed on tire, promptly be vulnerable to pollute, again electromagnetic signal formed certain loss.
The purpose of this utility model is to provide a kind of sensing reliable, the tire pressure wireless receiving and dispatching news warning device that transmission loss is little.
The utility model adopts following technical scheme.
Annunciator includes emitter, receiver.Emitter is made up of shell (1), pressure sensor (2), emission wiring board (3), battery (7), air guide sebific duct (13), and bellows (23), center link (22), spring (21), top electrode (K are installed in the pressure sensor (2) in turn
18), bottom electrode (K
19), upper and lower contact conductor connects transmitter supply circuit, transmitter antenna T
1With the conducting of car body metallic conductor.
Receiver is formed receiver antenna T by shell (28), wiring board (29), receiving wire (30), receiver battery (31)
2Traction goes out the receiver housing exterior.
Transmitter and receiver FM signal modulation transmissions, its transmitting-receiving frequency are adjusted in 3-30MHZ scope.
The installation of tyre alarm and principle of work are such.
Emitter is installed on the wheel hub of relative tire tube valve, the pressure chamber and the tyre cavity air pressure of air guide sebific duct (13) UNICOM pressure sensor.When tire impaired under-voltage to normal pressure 70% the time, sensing bellows (23) pressurized displacement drives center link, conducting upper/lower electrode (K
18, K
19), connect transmitter circuitry and send alerting signal.Because the emitting antenna of emitter is direct and the conducting of car body metallic object, transmission signals is directly sensed the receiver antenna T that is contained in the operator's compartment
2End, trigger alarm device and report to the police.
The utility model is compared known technology and is had tangible good effect.Because adopted elastic sensing element bellows and sensor outer housing to form the seal-off pressure chamber at transducing part, simultaneously with addition of damping spring, its working stability is reliable, good reproducibility, the performance of sensor is temperature influence not, and is minimum to the shake of transformation point.Secondly, with feeder line and antenna unification, utilize car body to make signal transmssion line dexterously, it is more reliable to work, and especially uses on the traction vehicle, and effect is even more ideal.This product machine is through the actual use of entrucking, and transmitter power only is tens milliwatts, can start alerting signal, has good practical values.
Below knot platform accompanying drawing further describes the utility model.
Accompanying drawing 1 is the transmitter architecture block diagram.
Accompanying drawing 2 is pressure sensor structure figure.
Accompanying drawing 3 is the emitter scheme of installation.
Accompanying drawing 4 is the receiver structure block diagram.
Accompanying drawing 5 is transmitter circuitry figure.
Accompanying drawing 6 is receiver circuit figure.
Among the figure, 1 is transmitter house, and 2 is pressure sensor, 3 are the emission wiring board, and 4 are fixing outer steel plate, and 5 is asbestos mat, 6,10,11 is fastener, and 7 is battery, and 8 is rubber ring, 9 is battery case, and 12 is pipe clamp, and 13 are the air guide sebific duct, 14 is the tire pressure inlet, and 15 is sensor mount, and 16 is trimming screw, 17 is pad, K
18, K
19For upper/lower electrode 20 is a flange, 21 is damping spring, and 22 is center link, and 23 is bellows, and 24 are the glue envelope, and 25 is pad, and 26 is wheel hub, and 27 is the receiver shell, and 28 is the receiver transmission line plate, and 29 is receiver antenna, and 30 are the receiver power supply lead-in wire.
During tyre underpressure, be subjected to the elasticity tension of bellows (23) and damping spring (21), drive on the center link (22) and move, the bottom electrode K that is solidified as a whole with center link
19With top electrode K
18The transmitter supply circuit is connected in conducting.The signal of emitter emission is through metal car body transmission induction, and the receiver antenna received signal in the operator's compartment is fed to receiver circuit, through the modulation output alarm signal, carries out sound, light display alarm.
Claims (2)
1, a kind of tire pressure annunciator includes emitter, receiver, it is characterized in that:
A, emitter are made up of shell (1), pressure sensor (2), emission wiring board (3), battery (7), air guide sebific duct (13), and bellows (23), center link (22), spring (21), top electrode (K are installed in the pressure sensor (2) in turn
18), bottom electrode (K
19), upper and lower contact conductor connects transmitter supply circuit, transmitter antenna T
1With the conducting of car body metallic conductor;
B, receiver are formed receiver antenna T by shell (28), wiring board (29), receiving wire (30), receiver battery (31)
2Traction goes out housing exterior.
2, tire pressure annunciator as claimed in claim 1 is characterized in that emitter, and receiver is with the frequency modulation modulated transmission signal, and its transmitting-receiving frequency is adjusted in 3-30MHZ scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95202339 CN2220954Y (en) | 1995-01-28 | 1995-01-28 | Tyre pressure alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95202339 CN2220954Y (en) | 1995-01-28 | 1995-01-28 | Tyre pressure alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2220954Y true CN2220954Y (en) | 1996-02-28 |
Family
ID=33855523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95202339 Expired - Fee Related CN2220954Y (en) | 1995-01-28 | 1995-01-28 | Tyre pressure alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2220954Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100422712C (en) * | 2002-05-21 | 2008-10-01 | 传感技术有限公司 | Tyre sensor interrogation and valve therefor |
| CN101654047A (en) * | 2009-09-09 | 2010-02-24 | 苗苏建 | Tyre pressure monitoring system by utilizing car body as data transmission carrier |
| CN101162180B (en) * | 2006-10-11 | 2010-08-18 | 桂林思超汽车科技有限公司 | Tyre bursting sensor |
-
1995
- 1995-01-28 CN CN 95202339 patent/CN2220954Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100422712C (en) * | 2002-05-21 | 2008-10-01 | 传感技术有限公司 | Tyre sensor interrogation and valve therefor |
| CN101162180B (en) * | 2006-10-11 | 2010-08-18 | 桂林思超汽车科技有限公司 | Tyre bursting sensor |
| CN101654047A (en) * | 2009-09-09 | 2010-02-24 | 苗苏建 | Tyre pressure monitoring system by utilizing car body as data transmission carrier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |