CN202117810U - Clogging warning device for automobile air filter - Google Patents
Clogging warning device for automobile air filter Download PDFInfo
- Publication number
- CN202117810U CN202117810U CN201120214103XU CN201120214103U CN202117810U CN 202117810 U CN202117810 U CN 202117810U CN 201120214103X U CN201120214103X U CN 201120214103XU CN 201120214103 U CN201120214103 U CN 201120214103U CN 202117810 U CN202117810 U CN 202117810U
- Authority
- CN
- China
- Prior art keywords
- pressure sensor
- sensor chip
- air filter
- silicon pressure
- chip module
- 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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Abstract
The utility model provides a technical scheme about a clogging warning device for an automobile air filter. The clogging warning device comprises a silicon pressure sensor chip module fixed in an intake pipe of the air filter, and a power supply. The silicon pressure sensor chip module is connected with an operational amplifier which is connected with a display module, the power supply is connected with a voltage-stabilizing circuit module which is connected with the silicon pressure sensor chip module, and the voltage-stabilizing circuit module is connected with an operational amplifier. The clogging warning device is accurate in precision and free of aging, and numeric value in a vibrating environment is still precise, constant and impregnable.
Description
Technical field
The utility model relates to a kind of warning device, especially a kind of air filter for automobile obstruction alarm device.
Background technique
In the prior art; Technique known is that present air filter for automobile obstruction alarm is passive alarm, how to be made up of spring, diaphragm, connecting rod etc., when the filter screen of air-strainer takes place to stop up; Produce negative pressure in the suction tude; When negative pressure reached certain value, the diaphragm pressure spring made connecting rod drive shell fragment contact contact, and circuit is connected the effect of playing warning.This type alarm is because the oxidation of aging, the contact of spring, bad connection, vibrations etc. make and report to the police inaccurately, and the influence that is very easily shaken is reacted insensitive.This is the existing in prior technology deficiency.
Summary of the invention
The purpose of the utility model; Be exactly not enough to existing in prior technology, and a kind of technological scheme of air filter for automobile obstruction alarm device is provided, the device precision of this scheme is accurate; Do not have problem of aging, numerical value is still accurately constant unaffected in vibration environment.
This programme is realized through following technical measures: a kind of air filter for automobile obstruction alarm device; Comprise the silicon pressure sensor chip module that is fixed in the air-cleaner snorkel; Described silicon pressure sensor chip module is connected with an operational amplifier, and said operational amplifier is connected with a display modular.In addition, also have a power supply, described power supply is connected with a mu balanced circuit module, and described mu balanced circuit module is connected with the silicon pressure sensor chip module, and described mu balanced circuit module is connected with operational amplifier.Described silicon pressure sensor chip module is US9111-006.
The beneficial effect of this programme can be learnt according to the narration to such scheme; Because the silicon pressure sensor chip module arranged in this scheme, be difficult for agingly, and be not subject to the influence that shakes; The silicon pressure sensor chip module can be sensed the gas pressure change in the suction tude timely; And gas pressure is transformed to electrical signal transfer to operational amplifier, through after the amplification of operational amplifier, show through display modular; Report to the police to driver, power supply is given the power supply of silicon pressure sensor chip module and operational amplifier respectively through the mu balanced circuit module.This shows that the utility model compared with prior art has substantive distinguishing features and progress, the beneficial effect of its enforcement also is conspicuous.
Description of drawings
Fig. 1 is the electrical principle block diagram of the utility model embodiment.
Among the figure, 1 is the silicon pressure sensor chip module, and 2 is operational amplifier, and 3 is display modular, and 4 is the mu balanced circuit module, and 5 is power supply.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below through an embodiment, and combine its accompanying drawing, this programme is set forth.
Can find out through accompanying drawing; A kind of air filter for automobile obstruction alarm device of this programme; Comprise the silicon pressure sensor chip module 1 that is fixed in the air-cleaner snorkel; Described silicon pressure sensor chip module 1 is connected with an operational amplifier 2, and said operational amplifier 2 is connected with a display modular 3.In addition, also have a power supply 5, described power supply 5 is connected with a mu balanced circuit module 4, and described mu balanced circuit module 4 is connected with silicon pressure sensor chip module 1, and described mu balanced circuit module 4 is connected with operational amplifier 2.Described silicon pressure sensor chip module 1 is US9111-006.
Claims (2)
1. air filter for automobile obstruction alarm device; It is characterized in that: comprise the silicon pressure sensor chip module that is fixed in the air-cleaner snorkel; Described silicon pressure sensor chip module is connected with an operational amplifier, and said operational amplifier is connected with a display modular, in addition; Also has a power supply; Described power supply is connected with a mu balanced circuit module, and described mu balanced circuit module is connected with the silicon pressure sensor chip module, and described mu balanced circuit module is connected with operational amplifier.
2. air filter for automobile obstruction alarm device according to claim 1 is characterized in that: described silicon pressure sensor chip module is US9111-006.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120214103XU CN202117810U (en) | 2011-06-23 | 2011-06-23 | Clogging warning device for automobile air filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120214103XU CN202117810U (en) | 2011-06-23 | 2011-06-23 | Clogging warning device for automobile air filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202117810U true CN202117810U (en) | 2012-01-18 |
Family
ID=45458882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120214103XU Expired - Fee Related CN202117810U (en) | 2011-06-23 | 2011-06-23 | Clogging warning device for automobile air filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202117810U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454263A (en) * | 2014-12-25 | 2015-03-25 | 济南泉工机械有限公司 | Air filter system for engineering machines |
-
2011
- 2011-06-23 CN CN201120214103XU patent/CN202117810U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454263A (en) * | 2014-12-25 | 2015-03-25 | 济南泉工机械有限公司 | Air filter system for engineering machines |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20170623 |