CN106401331A - Piezoelectric sensor structure of door handle - Google Patents
Piezoelectric sensor structure of door handle Download PDFInfo
- Publication number
- CN106401331A CN106401331A CN201611012518.2A CN201611012518A CN106401331A CN 106401331 A CN106401331 A CN 106401331A CN 201611012518 A CN201611012518 A CN 201611012518A CN 106401331 A CN106401331 A CN 106401331A
- Authority
- CN
- China
- Prior art keywords
- door handle
- circuit board
- piezoelectric type
- sensor structure
- shrouding
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
- E05B85/10—Handles
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/54—Electrical circuits
- E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
- E05B81/76—Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
Abstract
The invention discloses a piezoelectric sensor structure of a door handle. A pressure-sensitive component and a rigid component are installed at the two sides of a circuit board respectively, and are both installed in a placement bin of a bottom shell of the door handle; a bulged bulge part is arranged at the bottom of the replacement bin relative to the middle part of the pressure-sensitive component; and a sealing plate is installed on the bin wall of the placement bin. A housing of the door handle, a cover plate, the sealing plate, the rigid component, the circuit board, the pressure-sensitive component, the bulge part and the bottom shell are sequentially abutted to transfer a pressure. The structure of the door handle realizes pressure supply for the pressure-sensitive component through the own shell of the door handle and the original electronic component, and a connection manner of relative fixation is adopted among the parts; and the piezoelectric sensor structure of the door handle is simple in structure, low in accuracy requirement, and capable of effectively simplifying a product structure, and reducing the production difficulty and production cost.
Description
Technical field
The present invention relates to the door handle structure of automobile, the sensor installation knot of particularly a kind of piezoelectric type automobile door handle
Structure.
Background technology
Enter and activation system in automobile no-key（Passive Entry Passive Start - PEPS）In, when making
When user pulls door handle to attempt to open car door, door handle sensor can send what a door handle was touched to system
Signal, makes PEPS system be waken up, thus judging whether to open car door.
Chinese patent 201410823518.5 is disclosed one kind and is passed as PEPS system door handle using pressure-sensing device
The structure of sensor, the power in order to staff grasps door handle is efficiently transferred on pressure-sensing device, and this structure is in door handle
Groove is opened up on body, and the inching button by being arranged on groove and bushing are to the intrinsic pressure-sensing device of door handle
Transmission pressure.This kind of structure can meet the use of PEPS system well, and water proofing property and crushing resistance are well, but it is in order to anti-
Stop pressure excessive and damage sensing element it is necessary to extremely strictly limit the stroke of inching button, this is necessary for groove, fine motion
The size of button, bushing and pressure-sensing device and assembling have high required precision, for example must be by inching button and door
Pressing gap between handle housing is strict controlled between 0.1-0.2 millimeter, meanwhile, and due to this patent structure component number
Amount and structural complexity, lead to its machining accuracy and assembly precision to be all relatively difficult to accurately control.
Content of the invention
The present invention is intended to provide a kind of structure is simple and the piezoelectric type door handle sensor structure of handling ease, to simplify product
Product structure, reduces production difficulty and production cost.
Piezoelectric type door handle sensor structure of the present invention, the drain pan including composition door handle housing and cover plate, with
And pressure cell, circuit board, pressure cell is installed on the side of circuit board, and the opposite side of circuit board is equipped with stiffener；Drain pan
Inside have the place position placing pressure cell, circuit board and stiffener, the bottom of place position is provided with raise up convex
The portion of rising, has shrouding lid to be enclosed in the top of place position, and the outside of the inner side of cover plate and shrouding, the inner side of shrouding and stiffener,
The middle part of pressure cell and lug boss all offset.
Piezoelectric type door handle sensor structure of the present invention, the both sides of circuit board are respectively mounted pressure cell and rigidity
Element, the pressure that outer bound pair drain pan applies will be transferred directly on pressure cell, and the pressure that cover plate is applied then pass through shrouding,
Stiffener and circuit board are transferred on pressure cell.So when operator holds automobile door handle and is allowed to deform, from door
The pressure that handle both sides apply is transferred on pressure cell respectively, so that pressure cell is pressurized, produces electric signal and wakes up
PEPS system in automobile；Meanwhile, because drain pan place position internal projection portion, the pressure applying from drain pan side is only to pressure
The middle part generation effect of quick element, and the pressure applying from cover plate side will be to whole pressure cell generation effect so that pressure-sensitive
For two ends are pressurized, opposite side is that middle part is pressurized for the side of element, and pressure cell produces deformation to bending two ends, so that
Pressure cell is more prone to produce deformation, also makes the reaction of automobile PEPS system sensitiveer；Furthermore, because of human body palm shape
The reason, when hand is held with a firm grip, the pressure that thumb produces will point to the centre of remaining four finger or palm, and remaining four finger or palm
The pressure producing then focuses more on the forefinger of both sides and tail refers to locate, and thus, will be arranged at one to the lug boss of pressure cell
The medium position of side, can more conform to human engineering mechanics, further increase door handle sensor and automobile PEPS system
Reaction sensitivity.It can be seen that, the structure of this door handle passes through the housing of door handle itself and original electronic component is realized to pressure-sensitive
Element provides and is relatively-stationary connected mode between pressure, and each parts, and its structure is simple, required precision is low, can
Effectively to simplify product structure, reduce production difficulty and production cost；The setting of this structure more conforms to ergonomic simultaneously
The deformation of mechanics and sheet article requires, thus improving the reaction sensitivity of automobile PEPS system.
Brief description
Fig. 1 is the structural representation of piezoelectric type door handle sensor structure.
Fig. 2 is the cross section structure diagram of the structure of piezoelectric type door handle sensor shown in Fig. 1.
Fig. 3 is the partial enlarged drawing at structure A of piezoelectric type door handle sensor shown in Fig. 2.
Fig. 4 is the partial enlarged drawing at structure B of piezoelectric type door handle sensor shown in Fig. 2.
Fig. 5 is the circuit-board connecting structure schematic diagram of the structure of piezoelectric type door handle sensor shown in Fig. 1.
Fig. 6 is the partial enlarged drawing at the structure C of piezoelectric type door handle sensor shown in Fig. 5.
Specific embodiment
As shown in figures 1 to 6, a kind of piezoelectric type door handle sensor structure, the drain pan 1 including composition door handle housing and lid
Plate 2, and pressure cell 3, circuit board 4, pressure cell is installed on the side of circuit board, and the opposite side of circuit board is equipped with stiff domain
Part 6；The inside of drain pan has a place position 11 placing pressure cell, circuit board and stiffener, the bottom of place position be provided with to
Upper raised lug boss 12, has shrouding 7 lid to be enclosed in the top of place position, and the outside of the inner side of cover plate 2 and shrouding 7, shrouding 7
Inner side is all offseted with stiffener 6, the middle part of pressure cell 3 and lug boss 12.
Described piezoelectric type door handle sensor structure, described lug boss 12 is direction perpendicular to pressure cell 3 two ends
The fin of line, thus make pressure cell improve its security while keeping enough deformabilities by the setting of fin
And stability.The two ends of pressure cell 3 are installed on the side with circuit board 4 by conductive material, and the contact that is electrically connected can be welding
Or the conductive material of other forms, such as conducting foam；The opposite side of pressure cell 3 opposing projections 12 is also equipped with conductive material
5, the both sides of conductive material are close on pressure cell and circuit board 4 respectively.The two ends of pressure cell are installed by conductive material
On circuit board, realize electrically connecting between performance through conductive material and circuit board, and in the pressure cell between conductive material
Portion then leaves gap so that more easily deformation can be produced when pressure cell is pressurized and between circuit board, thus sending telecommunications
Number；In addition, the setting of middle part conductive material then can apply pressure when, it is to avoid circuit board and pressure cell directly contact and grind
Damage or lead to circuit to malfunction, also make the deformation of pressure cell more stable.
Described piezoelectric type door handle sensor structure, stiffener 6 pressure cell 3 ground relatively is arranged at circuit board 4
Opposite side, and the two ends of stiffener are installed on circuit board by support feet 8, if stiffener is set to flat board, it is right
The pressure that circuit board produces is less, needs operator to apply bigger grip and just can get sufficiently strong output signal, leads to it
Operation more inconvenience, and pass through the setting of support feet, then can obtain sufficiently strong output in the case of using less grip
Signal, improves the sensitivity of sensor；If in addition, the position of support feet be arranged at pressure cell equipped with conductive material two ends it
Between, that is, between the two ends fulcrum of pressure cell, when it applies pressure to circuit board, pressure cell more difficult will be made to produce deformation,
In view of this, can be more than using the distance between support feet 8 and lug boss 12 between two ends and the lug boss of pressure cell 3
Distance, so that support feet is arranged at outside the two ends fulcrum of pressure cell, and then more easily makes pressure cell produce shape
Become, improve the sensitivity of reaction and the convenience of operation.
Stiffener 6 can be the part contacting with circuit board 4 in shrouding 7, pass through shrouding when pressing directly to electricity
Road plate applies pressure, and this can simplify structure further；Stiffener 6 can also be that other has rigid material, and this is neither
The transmission of pressure can be affected, simultaneously again because still needing in place position arrange other electron component and circuit, by stiffener
Setting can reserve enough installing spaces while ensureing pressure transmission；In addition, stiffener 6 can also be magnetic
Antenna, magnetic antenna is arranged at the opposite side of circuit board 4 relative to pressure cell 3 ground, and support feet 8 is passed through at the two ends of stiffener
It is installed on circuit board although low-frequency magnetic antenna is unrelated with door handle sensor, but it is the important composition part in PEPS,
It is positioned in place position, both can be as pressure transmission device, and so that product structure is compacter, simultaneously
It is installed on circuit board using support feet, can also be arranged using the gap with circuit board in the middle part of low-frequency magnetic antenna other
Electronic component and circuit, further simplify product structure.
Described piezoelectric type door handle sensor structure, the medial surface of cover plate 2 is provided with fore-set 21, and fore-set is set with support feet 8
It is placed on same cross section and offsets with the lateral surface of shrouding 7, stay between remaining place of cover plate medial surface and the lateral surface of shrouding
There is gap.In this structure, the setting of the setting of fore-set and stiffener support feet in the same manner, can increase the pressure to shrouding for the cover plate,
Thus reducing required grip；And fore-set and support feet are oppositely arranged, then can improve the transmission effect of power, further
Improve Operational Figure Of Merit.
Claims (13)
1. a kind of piezoelectric type door handle sensor structure, including the drain pan of composition door handle housing（1）And cover plate（2）, and pressure
Quick element（3）, circuit board（4）It is characterised in that：Pressure cell is installed on the side of circuit board, the opposite side of circuit board equipped with
Stiffener（6）；The inside of drain pan has the place position placing pressure cell, circuit board and stiffener（11）, place position
Bottom is provided with the lug boss raising up（12）, have shrouding（7）Lid is enclosed in the top of place position, and the inner side of cover plate and shrouding
Outside, the inner side of shrouding and stiffener, the middle part of pressure cell and lug boss all offset.
2. piezoelectric type door handle sensor structure according to claim 1 it is characterised in that：Pressure cell（3）Two ends
It is installed on by conductive material and circuit board（4）Side.
3. piezoelectric type door handle sensor structure according to claim 2 it is characterised in that：Pressure cell（3）Relatively convex
The portion of rising（12）Opposite side equipped with conductive material（5）, the both sides of conductive material are close to pressure cell and circuit board respectively（4）
On.
4. the piezoelectric type door handle sensor structure according to Claims 2 or 3 it is characterised in that：Described conductive material is
Conducting foam.
5. the piezoelectricity door handle sensor structure according to Claims 2 or 3 it is characterised in that：Described conductive material is tin.
6. piezoelectric type door handle sensor structure according to claim 1 it is characterised in that：Lug boss（12）Hang down for direction
Directly in pressure cell（3）The fin of two ends line.
7. piezoelectric type door handle sensor structure according to claim 1 it is characterised in that：Stiffener（6）It is shrouding
（7）In with circuit board（4）The part contacting.
8. piezoelectric type door handle sensor structure according to claim 1 it is characterised in that：Stiffener（6）It is magnetic
Antenna.
9. the piezoelectric type door handle sensor structure according to claim 1,2,3,6,7,8 any claim, its feature
It is：Stiffener（6）Pressure cell relatively（3）Be arranged at circuit board（4）Opposite side, and the two ends of stiffener pass through
Support feet（8）It is installed on circuit board.
10. piezoelectric type door handle sensor structure according to claim 9 it is characterised in that：Support feet（8）With lug boss
（12）The distance between be more than pressure cell（3）The distance between two ends and lug boss.
The 11. piezoelectric type door handle sensor structures according to claim 1,2,3,6,7,8 any claim, its feature
It is：Cover plate（2）Medial surface be provided with fore-set（21）, fore-set and shrouding（7）Lateral surface offset, its leeway of cover plate medial surface
Gap is left between the lateral surface of side and shrouding.
12. piezoelectric type door handle sensor structures according to claim 9 it is characterised in that：Cover plate（2）Medial surface set
There is fore-set（21）, fore-set and support feet（8）It is arranged on same cross section and and shrouding（7）Lateral surface offset, inside cover plate
Remaining of face is local to leave gap and between the lateral surface of shrouding.
13. piezoelectric type door handle sensor structure according to claim 10 it is characterised in that：Cover plate（2）Medial surface
It is provided with fore-set（21）, fore-set and support feet（8）It is arranged on same cross section and and shrouding（7）Lateral surface offset, in cover plate
Remaining of side is local to leave gap and between the lateral surface of shrouding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611012518.2A CN106401331B (en) | 2016-11-17 | 2016-11-17 | A kind of piezoelectric type door handle sensor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611012518.2A CN106401331B (en) | 2016-11-17 | 2016-11-17 | A kind of piezoelectric type door handle sensor structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106401331A true CN106401331A (en) | 2017-02-15 |
| CN106401331B CN106401331B (en) | 2018-10-09 |
Family
ID=58068887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611012518.2A Active CN106401331B (en) | 2016-11-17 | 2016-11-17 | A kind of piezoelectric type door handle sensor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106401331B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863796A (en) * | 2020-06-30 | 2021-12-31 | 比亚迪股份有限公司 | Door handle device and vehicle with same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030009855A1 (en) * | 2001-06-12 | 2003-01-16 | Robert Bosch Gmbh | Outside door handle arrangement |
| CN104453493A (en) * | 2014-12-26 | 2015-03-25 | 马瑞利汽车电子(广州)有限公司 | Packaging structure of pressure-sensitive doorknob sensor |
| CN105403234A (en) * | 2015-12-08 | 2016-03-16 | 马瑞利汽车电子(广州)有限公司 | Piezoelectric door handle sensor structure |
| CN206495578U (en) * | 2016-11-17 | 2017-09-15 | 马瑞利汽车电子(广州)有限公司 | A kind of piezoelectric type door handle sensor structure |
-
2016
- 2016-11-17 CN CN201611012518.2A patent/CN106401331B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030009855A1 (en) * | 2001-06-12 | 2003-01-16 | Robert Bosch Gmbh | Outside door handle arrangement |
| CN104453493A (en) * | 2014-12-26 | 2015-03-25 | 马瑞利汽车电子(广州)有限公司 | Packaging structure of pressure-sensitive doorknob sensor |
| CN105403234A (en) * | 2015-12-08 | 2016-03-16 | 马瑞利汽车电子(广州)有限公司 | Piezoelectric door handle sensor structure |
| CN206495578U (en) * | 2016-11-17 | 2017-09-15 | 马瑞利汽车电子(广州)有限公司 | A kind of piezoelectric type door handle sensor structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863796A (en) * | 2020-06-30 | 2021-12-31 | 比亚迪股份有限公司 | Door handle device and vehicle with same |
| CN113863796B (en) * | 2020-06-30 | 2022-08-09 | 比亚迪股份有限公司 | Door handle device and vehicle with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106401331B (en) | 2018-10-09 |
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