CN201298459Y - Pressure sensor - Google Patents
Pressure sensor Download PDFInfo
- Publication number
- CN201298459Y CN201298459Y CNU2008202161506U CN200820216150U CN201298459Y CN 201298459 Y CN201298459 Y CN 201298459Y CN U2008202161506 U CNU2008202161506 U CN U2008202161506U CN 200820216150 U CN200820216150 U CN 200820216150U CN 201298459 Y CN201298459 Y CN 201298459Y
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- China
- Prior art keywords
- high molecular
- separator
- polymer film
- molecular polymer
- resilient material
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Abstract
The utility model discloses a pressure sensor used in alarm device for preventing leaving infant in car, which comprises a isolation layer made of soft elastic material, a first macromolecular polymer film, a second macromolecular polymer film, a first conducting wire and a second conducting wire; a plurality of through holes are formed on the isolation layer in thickness direction, the two macromolecular polymer films are distributed on the upper and lower side of the isolation layer; the side of the part opposite to the upper side of the isolation layer on the first macromolecular polymer film is coated by the first conductive layer; the side of the part opposite to the lower side of the isolation layer on the second macromolecular polymer film is coated by the second conductive layer; the two conductive layers are isolated the isolation layer; one end of the first conducting wire is connected on the first conductive layer, the other end is free; one end of the second conducting wire is connected on the second conductive layer, the other end is free. the utility model achieves the advantages of high sensitivity, high reliability and good practicability.
Description
Technical field
The utility model relates to a kind of pressure sensor, relates in particular to the pressure sensor that uses in the reminiscences of preventing forgetting baby in automobile.
Background technology
The reminiscences of preventing forgetting baby in automobile can remind the driver to note, prevents the security incident that forgetting baby is threatened infant's life at Che Nei.Reminiscences comprises infant's transducer, driver's transducer, reminds identification circuit and warning circuit, and infant's transducer and driver's transducer are respectively pressure sensors.In case remind identification circuit by infant's transducer and driver's sensor to the driver leave the seat and the infant still on the seat, remind identification circuit to send alarm command to warning circuit, warning circuit receives to give the alarm behind the alarm command reminds the driver to note.Pressure sensor is as the induction infant element of driver on the seat whether, and its performance is most important.
The utility model content
Technology to be solved in the utility model provides a kind of highly sensitive, good reliability and practical pressure sensor.
The utility model comprises separator, the first high molecular polymer film, the second high molecular polymer film, first lead and second lead of being made by flexible resilient material; On the described separator of being made by flexible resilient material several through holes are set, the direction of described each through hole along the separator upper side of being made by flexible resilient material to downside runs through the separator of being made by flexible resilient material; The first high molecular polymer film and the second high molecular polymer film are arranged in the upside and the downside of the separator of being made by flexible resilient material; Apply first conductive coating on the side of a part first high molecular polymer film relative with the upper side of the separator of making by flexible resilient material; Apply second conductive coating on the side of a part second high molecular polymer film relative with the downside of the separator of making by flexible resilient material; The described separator of being made by flexible resilient material is isolated above-mentioned two-layer conductive coating; One end of described first lead is connected electrically on first conductive coating, and the other end of first lead is a free end; One end of described second lead is connected electrically on second conductive coating, and the other end of second lead is a free end.
As improvement of the present utility model, the side of the side of the first high molecular polymer film and the second high molecular polymer film interconnects, to be encapsulated in by the separator that flexible resilient material is made in the inner chamber that forms between the two-layer high molecular polymer film, cause the improper contact of two-layer conductive coating with the separator play that prevents to make by flexible resilient material; The free end of the free end of first lead and second lead is in respectively outside the above-mentioned inner chamber.
As improvement of the present utility model, arrange the first waterproofing protection film at the upside of the first high molecular polymer film, the downside of the second high molecular polymer film is arranged the second waterproofing protection film; The side of the side of the described first waterproofing protection film and the second waterproofing protection film is tightly connected mutually, thereby will be contained in by separator, the first high molecular polymer film and the second high molecular polymer elastic membrane sealing that flexible resilient material is made in above-mentioned first waterproofing protection film and the film formed annular seal space of second waterproofing protection; The free end of the free end of first lead and second lead is in respectively outside the above-mentioned annular seal space.
Improve as of the present utility model, the separator of being made by flexible resilient material is a spongy layer again.
Pressure sensor in the utility model is installed on the automotive seat, when driver or infant sitting on the seat the time, because the effect of pressure, the separator generation elastic deformation of making by flexible resilient material in the pressure sensor, thickness is corresponding to diminish, thereby make first conductive coating that is coated on the first high molecular polymer side surface of thin film that is in the upper strata, and the distance that is coated between second conductive coating on the second high molecular polymer side surface of thin film that is in lower floor reduces, and produce by several through holes that are provided with on the separator of making by flexible resilient material and to be in contact with one another, make circuit connect.When the people on the seat left, the separator of being made by flexible resilient material restored to the original state and the separately first high molecular polymer film and the second high molecular polymer film automatically, thereby makes conductive coating isolate open circuit again.The free end of two leads of pressure sensor is electrically connected with other elements in the reminiscences.Pressure sensor in the utility model can be made the shape that adapts with the seat size, and without any bad sense of touch, all there is pressure sensitive in the diverse location at seat, and is highly sensitive, and good reliability is practical.
To be encapsulated in by the separator that flexible resilient material is made in the inner chamber that two-layer high molecular polymer film constitutes, prevent that the separator play of being made by flexible resilient material from causing the improper contact of two-layer conductive coating, thereby further improved the reliability of pressure sensor.
The waterproofing protection film is waterproof, moistureproof, guarantees to be sealed in the functional reliability of element in the waterproofing protection film.This considers that especially the infant urinates the functional reliability that can influence pressure sensor behind the wet cushion and designs.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Embodiment
As shown in Figure 1, pressure sensor comprises the separator of being made by flexible resilient material 1, several through holes 1-1 is set on the described separator of being made by flexible resilient material 1, and the direction of described each through hole 1-1 along separator 1 upper side of being made by flexible resilient material to downside runs through the separator of being made by flexible resilient material 1.
Upside and downside at the above-mentioned separator of being made by flexible resilient material 1 are arranged the first high molecular polymer film 2 and the second high molecular polymer film 3 respectively.
Apply first conductive coating (not showing among the figure) on the side of a part first high molecular polymer film 2 relative with the upper side of the separator of making by flexible resilient material 1.Apply second conductive coating 4 on the side of a part of high molecular polymer film 3 relative with the downside of the separator of making by flexible resilient material 1; The described separator of being made by flexible resilient material 1 is isolated above-mentioned two-layer conductive coating.
Be electrically connected first lead 5 on first conductive coating, an end of described first lead 5 is connected electrically on first conductive coating, and the other end of first lead 5 is free ends; Be electrically connected second lead 6 on second conductive coating 4, an end of described second lead 6 is connected electrically on second conductive coating 4, and the other end of second lead 6 is free ends.
In addition, arrange that at the upside of the first high molecular polymer film 2 downside of the first waterproofing protection film, 7, the second high molecular polymer films 3 is arranged the second waterproofing protection film 8.
The side of the first high molecular polymer film 2 and the second high molecular polymer film, 3 sides interconnect, to be encapsulated in by the separator 1 that flexible resilient material is made in the inner chamber that forms between the two-layer high molecular polymer film, cause the improper contact of two-layer conductive coating with separator 1 play that prevents to make by flexible resilient material.The side of the side of the first waterproofing protection film 7 and the second waterproofing protection film 8 is tightly connected mutually, thereby the separator of being made by flexible resilient material 1, the second high molecular polymer film, 3 sealings that apply the first high molecular polymer film 2 of first conductive coating and apply second conductive coating 4 are contained in the annular seal space that the above-mentioned first waterproofing protection film 7 and the second waterproofing protection film 8 form.The free end of first lead 5 and second lead 6 is outside above-mentioned annular seal space.
Preferably, the separator of being made by flexible resilient material 1 in the present embodiment is a spongy layer.
Claims (4)
1, a kind of pressure sensor is characterized in that: comprise separator, the first high molecular polymer film, the second high molecular polymer film, first lead and second lead made by flexible resilient material; On the described separator of being made by flexible resilient material several through holes are set, the direction of described each through hole along the separator upper side of being made by flexible resilient material to downside runs through the separator of being made by flexible resilient material; The first high molecular polymer film and the second high molecular polymer film are arranged in the upside and the downside of the separator of being made by flexible resilient material; Apply first conductive coating on the side of a part first high molecular polymer film relative with the upper side of the separator of making by flexible resilient material; Apply second conductive coating on the side of a part second high molecular polymer film relative with the downside of the separator of making by flexible resilient material; The described separator of being made by flexible resilient material is isolated above-mentioned two-layer conductive coating; One end of described first lead is connected electrically on first conductive coating, and the other end of first lead is a free end; One end of described second lead is connected electrically on second conductive coating, and the other end of second lead is a free end.
2, a kind of pressure sensor according to claim 1, it is characterized in that: the side of the side of the first high molecular polymer film and the second high molecular polymer film interconnects, to be encapsulated in by the separator that flexible resilient material is made in the inner chamber that forms between the two-layer high molecular polymer film, cause the improper contact of two-layer conductive coating with the separator play that prevents to make by flexible resilient material; The free end of the free end of first lead and second lead is in respectively outside the above-mentioned inner chamber.
3, a kind of pressure sensor according to claim 1 is characterized in that: arrange the first waterproofing protection film at the upside of the first high molecular polymer film, the downside of the second high molecular polymer film is arranged the second waterproofing protection film; The side of the side of the described first waterproofing protection film and the second waterproofing protection film is tightly connected mutually, thereby will be contained in by separator, the first high molecular polymer film and the second high molecular polymer elastic membrane sealing that flexible resilient material is made in above-mentioned first waterproofing protection film and the film formed annular seal space of second waterproofing protection; The free end of the free end of first lead and second lead is in respectively outside the above-mentioned annular seal space.
4, according to claim 1 or 2 or 3 described a kind of pressure sensors, it is characterized in that: the separator of being made by flexible resilient material is a spongy layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202161506U CN201298459Y (en) | 2008-11-17 | 2008-11-17 | Pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202161506U CN201298459Y (en) | 2008-11-17 | 2008-11-17 | Pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201298459Y true CN201298459Y (en) | 2009-08-26 |
Family
ID=41044446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202161506U Expired - Fee Related CN201298459Y (en) | 2008-11-17 | 2008-11-17 | Pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201298459Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102631197A (en) * | 2011-02-12 | 2012-08-15 | 中国医药大学 | Induction pad |
| CN106898114A (en) * | 2015-12-17 | 2017-06-27 | 北京奇虎科技有限公司 | Based reminding method and device based on safety seat |
-
2008
- 2008-11-17 CN CNU2008202161506U patent/CN201298459Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102631197A (en) * | 2011-02-12 | 2012-08-15 | 中国医药大学 | Induction pad |
| CN102631197B (en) * | 2011-02-12 | 2015-04-15 | 中国医药大学 | Induction pad |
| CN106898114A (en) * | 2015-12-17 | 2017-06-27 | 北京奇虎科技有限公司 | Based reminding method and device based on safety seat |
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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: 20090826 Termination date: 20121117 |