CN200995592Y - Special Hall pressure sensor for fuel vehicle - Google Patents
Special Hall pressure sensor for fuel vehicle Download PDFInfo
- Publication number
- CN200995592Y CN200995592Y CN 200620036241 CN200620036241U CN200995592Y CN 200995592 Y CN200995592 Y CN 200995592Y CN 200620036241 CN200620036241 CN 200620036241 CN 200620036241 U CN200620036241 U CN 200620036241U CN 200995592 Y CN200995592 Y CN 200995592Y
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- Prior art keywords
- joint
- pressure sensor
- hall element
- wiring board
- special
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- Expired - Fee Related
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Abstract
A special Hall pressure sensor for a gas vehicle is characterized in that the sensor comprises a joint (1), a Bourden tube (10) above the joint, a support arm (5), a Hall element (8), a permanent magnet (9) and a circuit board; a soleplate (3) is provided under the joint (1), while the Bourden tube (10) is equipped above the joint (1); one end of the Bourden tube (10) is fixed on the joint (1) and is a fixed end, while the other end is closed and is a free end; the support arm (5) is equipped at the free end and is provided with the circuit board (6); the Hall element (8) is welded on the circuit board (8); the permanent magnet (9) is equipped on a top of the joint (1) and under the center of the Hall element (8) respectively.
Description
Technical field
The utility model relates to pressure sensor, is applicable to gas combustion automobile, specifically is the special-purpose Hall pressure sensor of a kind of gas combustion automobile.
Background technology
The existing employed pressure sensor of gas combustion automobile generally is to convert on the compression indicator basis, promptly electro-optical tubes is installed in scale corresponding with it position above the calibrated disc of general purpose pressure gauge, on manometric pointer, light barrier is installed, when the gas cylinder internal pressure changes, deflection by pointer, light barrier cuts off light path, export an on-off signal, on-off signal is delivered in the switchgear box that is installed on the automobile instrument panel by cable, light in turn or extinguish light-emitting diode in the switch enclosure, the number of lighting by light-emitting diode is judged the numerical value of gas cylinder internal pressure, its shortcoming one is to export a kind of discontinuous step signal, because the restriction of the table space position that is stressed can not be installed a lot of electro-optical tubess, so survey precision is quite coarse, inaccurate; The 2nd, general purpose pressure gauge is unable to undergo jolting, shaking of automobile, movement often occurs and trembles the phenomenon diffusing, that pointer comes off, the consequence that causes function to lose to the greatest extent.
The utility model content
The purpose of this utility model provides the special-purpose Hall pressure sensor of a kind of gas combustion automobile, accurately detects the consumption changing condition of fuel in the gas cylinder in use for fuel gas automobile, in time observes force value in the automobile gas cylinder by being installed in digital meter on the automobile instrument panel.
The purpose of this utility model is achieved in that the special-purpose Hall pressure sensor of a kind of gas combustion automobile, the Bourdon tube, supporting arm, Hall element, permanent magnet, the wiring board that are reached by joint constitute, the joint bottom is provided with base plate, its top is provided with Bourdon tube, Bourdon tube one end is fixed on the joint, be fixed end, other end sealing, be free end, free end is provided with supporting arm, which is provided with wiring board, be welded with Hall element on the wiring board, joint top and below, Hall element center are provided with permanent magnet.
Described base plate is provided with housing, and its connection mode is that fastener connects.
Described housing is provided with cap, for being tightly connected.
Pig-tail wire on the described wiring board is connected with cable on being fixed on housing.
The utility model is to adopt Bourdon tube that pressure is converted to mechanical shift, and the Hall effect that produces with Hall element is again exported after displacement is converted to electric weight, finishes the detection to pressure.When the entrance pressure hole of gaseous fuel bottom joint enters in the Bourdon tube, the pressure of gaseous fuel makes the Bourdon tube free end produce the displacement that is directly proportional with force value, because Hall element is to be welded on the Bourdon tube free end securely by supporting arm and wiring board, so the pipe end displacement that Bourdon tube is produced makes Hall element mobile distance too above permanent magnet, Hall element moving above permanent magnet, just produce the voltage signal that is directly proportional with pressure, this voltage signal transfers on the automobile instrument panel by cable, demonstrates corresponding force value by digital meter.
The utility model converts the pressure changing condition in the gas cylinder in use for fuel gas automobile output of to continually varying voltage signal through evidence, realizes long-distance transmissions and numeric display; Survey precision height, accuracy rate reach ± and 2%; Measuring system all adopts rigidity to connect, the product reliability height, and earthquake-proof function is good, long service life, electronic component adopts high temperature resistant device, and operating temperature reaches 120 ℃; Inner structure adopts metal case hermetically sealed, and the waterproof and dustproof performance is good.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the schematic circuit diagram of Fig. 1.
Wherein: the 1-joint; The 2-connector; The 3-base plate; The 4-cable; The 5-supporting arm; The 6-wiring board; The 7-pig-tail wire; The 8-Hall element; The 9-permanent magnet; The 10-Bourdon tube; The 11-cap; The 12-housing.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
As shown in Figure 1, the special-purpose Hall pressure sensor of gas combustion automobile, the Bourdon tube 10, supporting arm 5, Hall element 8, permanent magnet 9, the wiring board 6 that are reached by joint 1 constitute, joint 1 bottom is provided with base plate 3, its top is provided with Bourdon tube 10, Bourdon tube 10 1 ends are fixed on the joint 1, be fixed end, other end sealing, be free end, free end is provided with supporting arm 5, which is provided with wiring board 6, be welded with Hall element 8 on the wiring board 6, joint 1 top and below, Hall element 8 centers are provided with permanent magnet 9.Base plate 3 is provided with housing 12, and its connection mode is that fastener connects.Housing 12 is provided with cap 11, is riveted joint.Pig-tail wire 7 on the wiring board 6 and cable 4 welding that are fixed on the housing 12.
As shown in Figure 1, joint 1 is welded on the base plate 3, and Bourdon tube 10 is welded on the joint 1, the Bourdon tube free end is welded with supporting arm 5, supporting arm 5 is connected on the wiring board 6, and Hall element 8 is welded on the wiring board 6, and permanent magnet 9 is fixed on joint 1 top and below, Hall element 8 centers.Its connector 2 leads to display instrument.The thread end of joint 1 is connected with the reducing valve pressure tap.
As shown in Figure 2, power supply enters Hall element 8, and Hall element 8 on permanent magnet 9 relative motion takes place, and voltage signal output is promptly arranged, and this signal is detected signal.
Claims (4)
1. the special-purpose Hall pressure sensor of a gas combustion automobile, it is characterized in that: the Bourdon tube (10) that reaches by joint (1), supporting arm (5), Hall element (8), permanent magnet (9), wiring board (6) constitutes, joint (1) bottom is provided with base plate (3), its top is provided with Bourdon tube (10), Bourdon tube (10) one ends are fixed on the joint (1), be fixed end, other end sealing, be free end, free end is provided with supporting arm (5), which is provided with wiring board (6), be welded with Hall element (8) on the wiring board (6), joint (1) top and below, Hall element (8) center are provided with permanent magnet (9).
2. the special-purpose Hall pressure sensor of gas combustion automobile according to claim 1, it is characterized in that: base plate (3) is provided with housing (12), and its connection mode is that fastener connects.
3. the special-purpose Hall pressure sensor of gas combustion automobile according to claim 2, it is characterized in that: housing (12) is provided with cap (11), for being tightly connected.
4. the special-purpose Hall pressure sensor of gas combustion automobile according to claim 2 is characterized in that: the pig-tail wire (7) on the wiring board (6) is connected with cable (4) on being fixed on housing (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620036241 CN200995592Y (en) | 2006-11-13 | 2006-11-13 | Special Hall pressure sensor for fuel vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620036241 CN200995592Y (en) | 2006-11-13 | 2006-11-13 | Special Hall pressure sensor for fuel vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200995592Y true CN200995592Y (en) | 2007-12-26 |
Family
ID=38994019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620036241 Expired - Fee Related CN200995592Y (en) | 2006-11-13 | 2006-11-13 | Special Hall pressure sensor for fuel vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200995592Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197626A (en) * | 2016-09-12 | 2016-12-07 | 韶关学院 | A kind of beam type pressure transducer based on Hall effect |
| CN109974904A (en) * | 2019-03-15 | 2019-07-05 | 上海电仪仪器仪表有限公司 | A kind of pressure meter structure |
-
2006
- 2006-11-13 CN CN 200620036241 patent/CN200995592Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197626A (en) * | 2016-09-12 | 2016-12-07 | 韶关学院 | A kind of beam type pressure transducer based on Hall effect |
| CN106197626B (en) * | 2016-09-12 | 2019-01-04 | 韶关学院 | A kind of beam type pressure sensor based on Hall effect |
| CN109974904A (en) * | 2019-03-15 | 2019-07-05 | 上海电仪仪器仪表有限公司 | A kind of pressure meter structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071226 Termination date: 20101113 |