CN106401331B - A kind of piezoelectric type door handle sensor structure - Google Patents
A kind of piezoelectric type door handle sensor structure Download PDFInfo
- Publication number
- CN106401331B CN106401331B CN201611012518.2A CN201611012518A CN106401331B CN 106401331 B CN106401331 B CN 106401331B CN 201611012518 A CN201611012518 A CN 201611012518A CN 106401331 B CN106401331 B CN 106401331B
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- CN
- China
- Prior art keywords
- door handle
- piezoelectric type
- type door
- sensor structure
- pressure cell
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lock And Its Accessories (AREA)
Abstract
A kind of piezoelectric type door handle sensor structure, the both sides of circuit board are respectively provided with pressure cell and stiffener, they are mounted in the place position of door handle bottom case, and the bottom of place position is equipped with the lug boss of protrusion with respect to the middle part of pressure cell, and sealing plate is housed on the bulkhead of place position.Door handle housing, cover board, sealing plate, stiffener, circuit board, pressure cell, lug boss, bottom case offset and transmit pressure successively.The structure of the door handle is realized by the shell of door handle itself and original electronic component provides pressure to pressure cell, and between each parts it is relatively-stationary connection type, its is simple in structure, required precision is low, product structure can effectively be simplified, while reducing production difficulty and production cost.
Description
Technical field
The present invention relates to the door handle structure of automobile, the sensor installation knot of especially a kind of piezoelectric type automobile door handle
Structure.
Background technology
In automobile no-key entrance and activation system（Passive Entry Passive Start - PEPS）In, when making
When user pulls door handle to attempt to open car door, door handle sensor can send out what a door handle was touched to system
Signal makes PEPS system be waken up, to judge whether to open car door.
Chinese patent 201410823518.5 disclose it is a kind of using pressure-sensing device as PEPS system door handle biography
The structure of sensor, the power in order to which human hand to be grasped to door handle are efficiently transferred on pressure-sensing device, and the structure is in door handle
Open up straight slot on ontology, and the inching button by being set on straight slot and bushing are to the intrinsic pressure-sensing device of door handle
Transmit pressure.This kind of structure can meet the use of PEPS system well, and water proofing property and crushing resistance are good, but it is in order to anti-
Only pressure is excessive and damage sensing element, it is necessary to extremely strictly limit the stroke of inching button, this just must be to straight slot, fine motion
Button, the size of bushing and pressure-sensing device and assembly have high required precision, such as must be by inching button and door
Pressing gap between handle housing is strict controlled between 0.1-0.2 millimeters, meanwhile, and due to the patent structure component number
Amount and structural complexity, cause its machining accuracy and assembly precision to be all relatively difficult to accurately control.
Invention content
The present invention is intended to provide a kind of simple in structure and handling ease piezoelectric type door handle sensor structure, is produced with simplifying
Product structure reduces production difficulty and production cost.
Piezoelectric type door handle sensor structure of the present invention includes the bottom case and cover board of composition door handle housing, with
And pressure cell, circuit board, pressure cell are installed on the side of circuit board, the other side of circuit board is equipped with stiffener；Bottom case
Inside be provided with the place position for placing pressure cell, circuit board and stiffener, the bottom of place position be equipped with raise up it is convex
The portion of rising has sealing plate lid to be enclosed in the top of place position, and the inside of the cover board and outside of sealing plate, the inside of sealing plate and stiffener,
The middle part of pressure cell offsets with lug boss.
Pressure cell and rigidity are installed in piezoelectric type door handle sensor structure of the present invention, the both sides of circuit board respectively
Element, the pressure that outer bound pair bottom case applies will be transferred directly on pressure cell, and the pressure that cover board is applied then by sealing plate,
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 will be transferred on pressure cell respectively, to make pressure cell be pressurized, is generated electric signal and is waken up
PEPS system in automobile；Meanwhile because of bottom case place position internal projection portion, the pressure applied from bottom case side is only to pressure
It is acted in the middle part of quick element, and the pressure applied from cover board side will act entire pressure cell so that it is pressure-sensitive
The side of element is both ends compression and the other side is middle part compression, and pressure cell to bending two ends generates deformation, so that
Pressure cell is more prone to generate deformation, but also the reaction of automobile PEPS system is sensitiveer；Furthermore because of human body palm shape
The reason of, when hand is held with a firm grip, thumb generate pressure will be directed toward remaining four refer to or palm centre, and remaining four refer to or palm
The pressure of generation then focuses more on the index finger of both sides and tail refers to place, will be set to one to the lug boss of pressure cell as a result,
The medium position of side can be more in line with human engineering mechanics, further improve door handle sensor and automobile PEPS system
Reaction sensitivity.As it can be seen that the structure of the door handle is realized by the shell of door handle itself and original electronic component to pressure-sensitive
Element provides pressure, and is relatively-stationary connection type between each parts, simple in structure, required precision is low, can
Effectively to simplify product structure, production difficulty and production cost are reduced；The setting of the structure is more in line with ergonomic simultaneously
The deformation requirement of mechanics and sheet article, to improve the reaction sensitivity of automobile PEPS system.
Description of the drawings
Fig. 1 is the structural schematic diagram of piezoelectric type door handle sensor structure.
Fig. 2 is the schematic cross-sectional view of the structure of piezoelectric type door handle sensor shown in Fig. 1.
Fig. 3 is the partial enlarged view at the structure of piezoelectric type door handle sensor shown in Fig. 2 A.
Fig. 4 is the partial enlarged view at the structure of piezoelectric type door handle sensor shown in Fig. 2 B.
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 view at the structure C of piezoelectric type door handle sensor shown in Fig. 5.
Specific implementation mode
As shown in figures 1 to 6, a kind of piezoelectric type door handle sensor structure includes the bottom case 1 and lid of composition door handle housing
Plate 2 and pressure cell 3, circuit board 4, pressure cell are installed on the side of circuit board, and the other side of circuit board is equipped with stiff domain
Part 6；The inside of bottom case is provided with the place position 11 for placing pressure cell, circuit board and stiffener, the bottom of place position be equipped with to
The lug boss 12 of upper protrusion has sealing plate 7 to cover and is enclosed in the top of place position, and the outside of the inside of cover board 2 and sealing plate 7, sealing plate 7
Inside offsets with stiffener 6, the middle part of pressure cell 3 and lug boss 12.
The piezoelectric type door handle sensor structure, the lug boss 12 are direction perpendicular to 3 both ends of pressure cell
The fin of line, to make pressure cell improve its safety while keeping enough deformabilities by the setting of fin
And stability.The both 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 other side of 3 opposing projections 12 of pressure cell is also equipped with conductive material
5, the both sides of conductive material are tightly attached to respectively on pressure cell and circuit board 4.It is installed by conductive material at the both ends of pressure cell
In on circuit board, realizes and be electrically connected between performance and circuit board through conductive material, and in the pressure cell between conductive material
Then there are gaps between circuit board in portion so that pressure cell can more easily generate deformation when being pressurized, to send out telecommunications
Number；In addition, the setting of middle part conductive material then can avoid circuit board and pressure cell from being in direct contact and grind when applying pressure
It damages or circuit is caused to malfunction, but also the deformation of pressure cell is more stablized.
The piezoelectric type door handle sensor structure, stiffener 6 are set to circuit board 4 with respect to 3 ground of pressure cell
The other side, and the both ends of stiffener are installed on by support leg 8 on circuit board, it is right if setting stiffener to tablet
The pressure that circuit board generates is smaller, needs the grip that operator applies bigger that sufficiently strong output signal just can be obtained, leads to it
Operation is more inconvenient, and by the setting of support leg, then it can obtain sufficiently strong output using smaller grip
Signal improves the sensitivity of sensor；If in addition, the position of support leg be set to pressure cell equipped with conductive material both ends it
Between, i.e., between the both ends fulcrum of pressure cell, when it applies pressure to circuit board, pressure cell more difficult will be made to generate deformation,
In view of this, the distance between support leg 8 and lug boss 12 may be used more than between the both ends and lug boss of pressure cell 3
Distance to make support leg be set to except the both ends fulcrum of pressure cell, and then more easily makes pressure cell generate shape
Become, improves the sensitivity of reaction and the convenience of operation.
Stiffener 6 can be the part being in contact with circuit board 4 in sealing plate 7, when pressing by sealing plate directly to electricity
Road plate applies pressure, this can be further simplified structure；Stiffener 6 can also be other materials with rigidity, this is neither
The transmission of pressure can be influenced, while passing through stiffener because still needing to arrangement other electron component and circuit in place position again
Enough installation spaces can be reserved while ensureing pressure transmission by being arranged；In addition to this, stiffener 6 can also be magnetic
Antenna, magnetic antenna is set to the other side of circuit board 4 with respect to 3 ground of pressure cell, and the both ends of stiffener pass through support leg 8
It is installed on circuit board, although low-frequency magnetic antenna is unrelated with door handle sensor, it is the important composition component in PEPS,
It is positioned in place position, not only can be as pressure transmission device, but also can so that product structure is compacter, simultaneously
It is installed on circuit board using support leg, the gap in the middle part of low-frequency magnetic antenna with circuit board can also be utilized to arrange other
Electronic component and circuit, further simplify product structure.
The medial surface of the piezoelectric type door handle sensor structure, cover board 2 is equipped with fore-set 21, and fore-set is set with support leg 8
It is placed on same cross section and offsets with the lateral surface of sealing plate 7, stayed between remaining place of cover board medial surface and the lateral surface of sealing plate
There is gap.The setting of fore-set and the setting of stiffener support leg similarly, can increase pressure of the cover board to sealing plate in the structure,
To reduce required grip；And be oppositely arranged fore-set with support leg, then the transmission effect of power can be improved, further
Improve Operational Figure Of Merit.
Claims (13)
1. a kind of piezoelectric type door handle sensor structure includes the bottom case of composition door handle housing（1）And cover board（2）, and pressure
Quick element（3）, circuit board（4）, it is characterised in that：Pressure cell is installed on the side of circuit board, and the other side of circuit board is equipped with
Stiffener（6）；The inside of bottom case is provided with the place position for placing pressure cell, circuit board and stiffener（11）, place position
Bottom is equipped with the lug boss to raise up（12）, there is sealing plate（7）Lid is enclosed in the top of place position, and the inside of cover board and sealing plate
Outside, sealing plate inside and stiffener, the middle part of pressure cell and lug boss offset.
2. piezoelectric type door handle sensor structure according to claim 1, it is characterised in that：Pressure cell（3）Both ends
It is installed on circuit board by conductive material（4）Side.
3. piezoelectric type door handle sensor structure according to claim 2, it is characterised in that：Pressure cell（3）It is relatively convex
The portion of rising（12）The other side be equipped with conductive material（5）, pressure cell and circuit board are tightly attached in the both sides of conductive material respectively（4）
On.
4. piezoelectric type door handle sensor structure according to claim 2 or 3, it is characterised in that：The conductive material is
Conducting foam.
5. piezoelectric type door handle sensor structure according to claim 2 or 3, it is characterised in that：The conductive material is
Tin.
6. piezoelectric type door handle sensor structure according to claim 1, it is characterised in that：Lug boss（12）It hangs down for direction
Directly in pressure cell（3）The fin of both ends line.
7. piezoelectric type door handle sensor structure according to claim 1, it is characterised in that：Stiffener（6）It is sealing plate
（7）In with circuit board（4）The part being in contact.
8. piezoelectric type door handle sensor structure according to claim 1, it is characterised in that：Stiffener（6）It is magnetic
Antenna.
9. according to the piezoelectric type door handle sensor structure described in 1,2,3,6,7,8 any claim of claim, feature
It is：Stiffener（6）Opposite pressure cell（3）Ground is set to circuit board（4）The other side, and the both ends of stiffener pass through
Support leg（8）It is installed on circuit board.
10. piezoelectric type door handle sensor structure according to claim 9, it is characterised in that：Support leg（8）With lug boss
（12）The distance between be more than pressure cell（3）Both ends and the distance between lug boss.
11. according to the piezoelectric type door handle sensor structure described in 1,2,3,6,7,8 any claim of claim, feature
It is：Cover board（2）Medial surface be equipped with fore-set（21）, fore-set and sealing plate（7）Lateral surface offset, its leeway of cover board medial surface
There are gaps between side and the lateral surface of sealing plate.
12. piezoelectric type door handle sensor structure according to claim 9, it is characterised in that：Cover board（2）Medial surface set
There is fore-set（21）, fore-set and support leg（8）Be set on same cross section and and sealing plate（7）Lateral surface offset, on the inside of cover board
There are gaps between remaining place in face and the lateral surface of sealing plate.
13. piezoelectric type door handle sensor structure according to claim 10, it is characterised in that：Cover board（2）Medial surface
Equipped with fore-set（21）, fore-set and support leg（8）Be set on same cross section and and sealing plate（7）Lateral surface offset, in cover board
There are gaps between remaining place of side and the lateral surface of sealing plate.
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 CN106401331A (en) | 2017-02-15 |
| CN106401331B true CN106401331B (en) | 2018-10-09 |
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| 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 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863796B (en) * | 2020-06-30 | 2022-08-09 | 比亚迪股份有限公司 | Door handle device and vehicle with same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10132925A1 (en) * | 2001-06-12 | 2003-01-02 | Bosch Gmbh Robert | Exterior door handle assembly |
| CN104453493B (en) * | 2014-12-26 | 2016-09-28 | 马瑞利汽车电子(广州)有限公司 | A kind of encapsulating structure of pressure sensitive door handle 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 |
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- 2016-11-17 CN CN201611012518.2A patent/CN106401331B/en active Active
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| CN106401331A (en) | 2017-02-15 |
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