CN203766689U - Vehicular seat pressure sensor - Google Patents
Vehicular seat pressure sensor Download PDFInfo
- Publication number
- CN203766689U CN203766689U CN201420132783.4U CN201420132783U CN203766689U CN 203766689 U CN203766689 U CN 203766689U CN 201420132783 U CN201420132783 U CN 201420132783U CN 203766689 U CN203766689 U CN 203766689U
- Authority
- CN
- China
- Prior art keywords
- pressure sensor
- pressure sensitive
- resistance
- strut member
- sensitive 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 - Lifetime
Links
- 239000010410 layer Substances 0.000 claims description 45
- 239000011229 interlayer Substances 0.000 claims description 15
- 239000011159 matrix material Substances 0.000 claims description 14
- 239000013536 elastomeric material Substances 0.000 claims description 12
- 238000002955 isolation Methods 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 6
- 238000007639 printing Methods 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 238000005187 foaming Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 239000013013 elastic material Substances 0.000 abstract 3
- 238000010586 diagram Methods 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 241000446313 Lamella Species 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000036544 posture Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Landscapes
- Seats For Vehicles (AREA)
Abstract
The utility model relates to a vehicular seat pressure sensor connected with a vehicle controller. The vehicular seat pressure sensor comprises a pressure sensing module, a resistor, a plastic package block, a support member, a wire bundle, elastic material, and an antifriction isolating layer. The pressure sensing module, the resistor, the wire bundle, the connector and the vehicle controller are connected in order. The resistor is disposed in the plastic package block. The elastic material is fixed on the support member. The pressure sensing module and the antifriction isolating layer are detachably connected through the plastic package block and the support member. The antifriction isolating layer, the pressure sensing module and the elastic material are arranged in order from top to bottom. The connector is detachably connected with the support member. The vehicle controller judges current usage state of a seat according to electrical signals detected by the vehicular seat pressure sensor. Compared with the prior art, the vehicular seat pressure sensor provides a control system with recognition signals for failures, such as circuit break and short circuit; meanwhile, the vehicular seat pressure sensor has the advantages of higher comfort, higher sensitivity, higher universality, simple structure, convenience in use and the like.
Description
Technical field
The utility model relates to a kind of vehicle accessory, especially relates to a kind of auto use chair pressure sensor.
Background technology
Auto use chair pressure sensor is mainly to take the prompting with unoccupied for passenger.Traditional Chinese chair pressure sensor is deposited problem in the following areas:
1) traditional Chinese chair pressure sensor takies and unoccupied and fault cannot be distinguished, and does not consider that some special occasions is to fault detection prompting in incoming signal; Easily produce erroneous judgement; Such as broken string, short circuit.
2) traditional Chinese chair pressure sensor detectivity is not high, may exist because of sitting posture differently, and fails the situation of accurate detection, the situation beyond 6 kinds of sitting postures may survey less than;
3) traditional Chinese chair pressure sensor expand with commonality not highly, different automobile types need to be according to the independent deisgn product of engineering characteristic of seat foaming, commonality is bad, inconvenience expansion, time-to-market is long, and cost of development is very high, is not suitable for the update in existing product market.
4) traditional Chinese chair pressure sensor is directly installed under seat leather sheath, easily, by people's perception, affects comfort level.
Summary of the invention
The purpose of this utility model is exactly in order to overcome the defect that above-mentioned prior art exists, to provide a kind of to have that breakdown of equipment is opened circuit, short circuit recognition function, highly sensitive, extendible auto use chair pressure sensor.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of auto use chair pressure sensor, be connected with entire car controller, this sensor comprises that pressure sensitive module, resistance, envelope mould piece, strut member, wire harness, adaptor union, elastomeric material and abrasionproof interlayer, and described pressure sensitive module, resistance, wire harness, adaptor union, entire car controller connect successively; Described resistance is located at envelope and moulds in piece; Described elastomeric material is fixed on strut member, and pressure sensitive module, abrasionproof interlayer are moulded piece by envelope and be connected with strut member is detachable, and abrasionproof interlayer, pressure sensitive module, elastomeric material from top to bottom set gradually; Described adaptor union is connected with strut member is detachable;
Described pressure sensitive module is in series by a plurality of pressure sensitives unit group, and described pressure sensitive unit group is formed in parallel by a plurality of pressure sensitives unit.
Described resistance is provided with two groups, and one group of resistance is connected with pressure sensitive module, and another group resistance is in parallel with pressure sensitive module; Described resistance is Chip-R, and it is upper that this Chip-R is welded on PET, then by injection molding plastic packaging, in envelope, moulds in piece.
Described pressure sensitive unit is film press-key structure.
Described pressure sensitive unit is square structure, comprise the dielectric isolation layer between upper and lower two-layer matrix and matrix, on the opposite face of upper and lower two-layer matrix, be all printed with conductive layer, the conductive layer of described upper matrix printing is square, and the conductive layer of lower substrate printing is square lattice formula structure; On described dielectric isolation layer, the position hollow out corresponding with square conductive layer; The thickness of described dielectric isolation layer is greater than the gap between lower substrate conductive layer.
Described conductive layer is the mixolimnion of silver powder layer, carbon dust layer or silver powder and carbon dust.
This installation of sensors is between seat steel structure and cushion foaming, and described strut member is by buckle mode and seat steel structure connection.
The both sides of described strut member are provided with unloads power bar.
Described adaptor union is connected with strut member by buckle mode.
Described abrasionproof interlayer moulds mode by envelope and pressure sensitive module forms one.
Described elastomeric material is arranged between pressure sensitive module and strut member.
Compared with prior art, the utlity model has following beneficial effect:
1) the utility model adopts film key similar structures to be designed to pressure sensitive unit, adopts many groups pressure sensitive unit, with series-parallel system decomposition pressure induction module; By string resistance mode, reach loop and export different resistances, and be connected with entire car controller, different by resistance by entire car controller, distinguish seat status.Whether occupied the utility model not only can distinguish seat easily according to seat load-bearing, also increases Chip-R, for whole-control system is realized failure to trip, and the recognition function of short circuit.
2) the utility model installation of sensors, between seat steel structure and cushion foaming, is avoided because of the too thin people's of the impact comfort level of fabric, and improves the sensitivity of device, uses the applicable intercommunity of engineering very strong.
3) the utility model is used square lattice sensing unit structure, improves the sensitivity of device, with low cost.
4) the utility model adopts many group pressure sensitive unit strings Parallel Designs, improved product reliability and sensitivity.
5) the utility model adopts the technique of soldering surface mounted resistance on PET film, product extensibility is obtained greatly and improve, and can, according to each engineering demand, process the product of different resistances.
6) the utility model newly-increased abrasionproof interlayer design in pressure sensitive module, will jolt wriggle on product impact drop to minimum, prolongation product service life.
7) the utility model in strut member both sides the newly-increased power bar that unloads, can be by excessive transferring on strut member, thus make product bear suitable external force.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A-A cutaway view in Fig. 1;
Fig. 3 is the enlarged diagram at resistance place;
Fig. 4 is the circuit diagram that the utility model pressure sensitive module is connected with resistance;
Fig. 5 is the structural representation of the utility model pressure sensitive unit;
Fig. 6 is the utility model pressure sensitive module superstructure schematic diagram;
Fig. 7 is the utility model pressure sensitive module intermediate interlayer structural representation;
Fig. 8 is the utility model pressure sensitive module understructure schematic diagram.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.The present embodiment be take technical solutions of the utility model and is implemented as prerequisite, provided detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As Figure 1-Figure 2, a kind of auto use chair pressure sensor, be called for short SBR, be connected with entire car controller, this sensor comprises pressure sensitive module 1, resistance 2, seals and mould piece 3, strut member 4, wire harness 5, adaptor union 6, elastomeric material 7 and abrasionproof interlayer 8, and pressure sensitive module 1, resistance 2, wire harness 5, adaptor union 6, entire car controller are electrically connected successively; Resistance 2 is located at envelope and moulds in piece 3; Elastomeric material 7 is fixed on strut member 4, pressure sensitive module 1, abrasionproof interlayer 8 are moulded piece 3 by envelope and are connected with strut member 4 is detachable, abrasionproof interlayer 8, pressure sensitive module 1, elastomeric material 7 from top to bottom set gradually, abrasionproof interlayer 8 can be selected 0.1mmPET film, abrasionproof interlayer moulds mode by envelope and pressure sensitive module forms one, and protection product, can reduce and load after SBR, the wearing and tearing of jolting and wriggling to SBR, increase the service life; Adaptor union 6 is connected with strut member 4 is detachable; Elastomeric material 7 is arranged between pressure sensitive module 1 and strut member 4, guarantees that pressure sensor works reliably.
As shown in Figure 4, pressure sensitive module 1 is in series by a plurality of pressure sensitives unit group, and pressure sensitive unit group is formed in parallel by a plurality of pressure sensitives unit 11.Resistance 2 is provided with two groups, and one group of resistance R 1 is connected with pressure sensitive module 1, and another group resistance R 2 is in parallel with pressure sensitive module 1.Resistance can be selected different resistances according to different engineering demands, to meet engineering desired parameters.
As shown in Figure 3, resistance 2 is Chip-R, and it is upper that this Chip-R is welded on PET, then by injection molding plastic packaging, in envelope, moulds in piece 3.
As shown in Figure 5-Figure 8, pressure sensitive unit 11 is film press-key structure, and it is shaped as square structure.Pressure sensitive unit 11 comprises upper and lower two-layer matrix 1000 and is located at the dielectric isolation layer 1001 between matrix 1000, on the opposite face of upper and lower two-layer matrix 1000, be printed with conductive layer 1002, the conductive layer of upper matrix printing is square, and the conductive layer of lower substrate printing is square lattice formula structure; On dielectric isolation layer 1001, the position hollow out corresponding with square conductive layer; The thickness of dielectric isolation layer 1001 is greater than the gap of 1002 of conductive layers on lower substrate 100, forms through hole 1003.The weight corresponding to pore size of the thickness of dielectric isolation layer 1001 and through hole 1003.Conductive layer 1002 is the mixolimnion of silver powder layer, carbon dust layer or silver powder and carbon dust.When seat is not stressed, between the conductive layer on upper and lower two-layer matrix, there is gap, when the suffered power of seat is enough large, the conductive layer contact on upper and lower two-layer matrix, pressure sensitive cell conduction.
In pressure sensitive unit, upper and lower lamella base material is selected 0.1mm-0.2mm PET material, at the upper and lower lamella printed silver slurry of PET or carbon slurry, forms conductive layer.
This installation of sensors is between seat steel structure and cushion foaming (being seat B face), and strut member 4 is by buckle mode and seat steel structure connection.The both sides of strut member 4 are provided with unloads power bar, and the pressure that pressure sensitive module is unnecessary is laid down, and allows power that pressure sensitive module bears within the scope of convenient pressure.Adaptor union 6 is connected with strut member 4 by buckle mode.
When seat is subject to certain effect power, the relevant pressure sensing unit conducting in pressure sensitive module, start sensor, the electric signal after entire car controller is connected with resistance according to pressure sensitive module judges current seat state.SBR induces Different Weight interval, and the difference of corresponding resistance value is distinguished respectively and had or not passenger, SBR short circuit and the most common failure such as the open circuit recognition function that opens circuit, specific as follows:
1), when electric signal A meets A<X1, X1 is that the first thresholding arranges resistance, is judged as short trouble;
2) when electric signal A meets X2≤A≤Y1, X2, Y1 are respectively second, third thresholding resistance are set, and being judged as seat has and carry, and someone takies;
3) when electric signal A meets Y2≤A≤Z1, Y2, Z1 are respectively the 4th, the 5th thresholding resistance are set, and are judged as seat vacant, unmanned;
4), when electric signal A meets Z2≤A, Z2 is that the 6th thresholding arranges resistance, is judged as open circuit fault;
The pass that each thresholding arranges between resistance is: X1<X2<Y1<Y2LEssT. LTssT.LTZ1<Z2.
Claims (10)
1. an auto use chair pressure sensor, be connected with entire car controller, it is characterized in that, this sensor comprises pressure sensitive module (1), resistance (2), seals and mould piece (3), strut member (4), wire harness (5), adaptor union (6), elastomeric material (7) and abrasionproof interlayer (8); Described pressure sensitive module (1), resistance (2), wire harness (5), adaptor union (6), entire car controller connect successively; Described resistance (2), is located at envelope and moulds in piece (3); Described elastomeric material (7) is fixed on strut member (4), pressure sensitive module (1), abrasionproof interlayer (8) are moulded piece (3) and detachable connection of strut member (4) by envelope, and abrasionproof interlayer (8), pressure sensitive module (1), elastomeric material (7) from top to bottom set gradually; Described adaptor union (6) and detachable connection of strut member (4);
Described pressure sensitive module (1) is in series by a plurality of pressure sensitives unit group, and described pressure sensitive unit group is formed in parallel by a plurality of pressure sensitives unit.
2. a kind of auto use chair pressure sensor according to claim 1, is characterized in that, described resistance (2) is provided with many groups, and as one group of resistance is connected with pressure sensitive module (1), another group resistance is in parallel with pressure sensitive module (1); Described resistance (2) is Chip-R, and it is upper that this Chip-R is arranged on PET, is then encapsulated in and moulds in piece (3).
3. a kind of auto use chair pressure sensor according to claim 1, is characterized in that, described pressure sensitive unit is film press-key structure.
4. a kind of auto use chair pressure sensor according to claim 1, it is characterized in that, described pressure sensitive unit is square structure, comprise the dielectric isolation layer between upper and lower two-layer matrix and matrix, on the opposite face of upper and lower two-layer matrix, be all printed with conductive layer, the conductive layer of described upper matrix printing is square, and the conductive layer of lower substrate printing is square lattice formula structure; On described dielectric isolation layer, the position hollow out corresponding with square conductive layer; The thickness of described dielectric isolation layer is for controlling the gap between lower substrate conductive layer.
5. a kind of auto use chair pressure sensor according to claim 4, is characterized in that, described conductive layer is the mixolimnion of silver powder layer, carbon dust layer or silver powder and carbon dust.
6. a kind of auto use chair pressure sensor according to claim 1, is characterized in that, this installation of sensors is between seat steel structure and cushion foaming, and described strut member (4) is by buckle mode and seat steel structure connection.
7. a kind of auto use chair pressure sensor according to claim 1, is characterized in that, the both sides of described strut member (4) are provided with unloads power bar.
8. a kind of auto use chair pressure sensor according to claim 1, is characterized in that, described adaptor union (6) is connected with strut member (4) by buckle mode.
9. a kind of auto use chair pressure sensor according to claim 1, is characterized in that, described abrasionproof interlayer (8) moulds mode by envelope and pressure sensitive module (1) forms one.
10. a kind of auto use chair pressure sensor according to claim 1, is characterized in that, described elastomeric material (7) is arranged between pressure sensitive module (1) and strut member (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420132783.4U CN203766689U (en) | 2014-03-21 | 2014-03-21 | Vehicular seat pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420132783.4U CN203766689U (en) | 2014-03-21 | 2014-03-21 | Vehicular seat pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203766689U true CN203766689U (en) | 2014-08-13 |
Family
ID=51283918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420132783.4U Expired - Lifetime CN203766689U (en) | 2014-03-21 | 2014-03-21 | Vehicular seat pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203766689U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106248294A (en) * | 2015-06-09 | 2016-12-21 | 福特全球技术公司 | For testing the system and method for seat pressure transducer |
| CN107097691A (en) * | 2017-05-18 | 2017-08-29 | 上海安闻汽车电子有限公司 | A kind of human pressure's switch and automotive seat |
-
2014
- 2014-03-21 CN CN201420132783.4U patent/CN203766689U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106248294A (en) * | 2015-06-09 | 2016-12-21 | 福特全球技术公司 | For testing the system and method for seat pressure transducer |
| CN106248294B (en) * | 2015-06-09 | 2020-03-20 | 福特全球技术公司 | System and method for testing seat pressure sensors |
| CN107097691A (en) * | 2017-05-18 | 2017-08-29 | 上海安闻汽车电子有限公司 | A kind of human pressure's switch and automotive seat |
| CN107097691B (en) * | 2017-05-18 | 2023-05-12 | 上海安闻汽车电子有限公司 | Human body pressure switch and automobile seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |