EP3635868A1 - Montagebauteil für ein kraftfahrzeug - Google Patents
Montagebauteil für ein kraftfahrzeugInfo
- Publication number
- EP3635868A1 EP3635868A1 EP18703276.8A EP18703276A EP3635868A1 EP 3635868 A1 EP3635868 A1 EP 3635868A1 EP 18703276 A EP18703276 A EP 18703276A EP 3635868 A1 EP3635868 A1 EP 3635868A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mounting component
- capacitive sensor
- inner portion
- filling element
- wall
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/945—Proximity switches
- H03K17/955—Proximity switches using a capacitive detector
-
- 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
- E05B81/77—Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles comprising sensors detecting the presence of the hand of a user
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/9607—Capacitive touch switches
- H03K2217/960755—Constructional details of capacitive touch and proximity switches
Definitions
- the invention relates to a mounting component for a motor vehicle, wherein the
- Mounting member is associated with an electronic unit having at least one capacitive sensor and the electronic unit is arranged spaced from a wall of the mounting member, wherein between the electronic unit and the wall of the mounting member, a filling element in the region of the capacitive sensor
- the door handle comprises a housing for receiving an electronics box, in which a capacitive sensor is arranged.
- the housing has an inner wall to which the electronics box having the capacitive sensor is arranged at a distance, so that an air gap is formed between the electronics box and the inner wall of the housing.
- a molded plastic foam harid is inserted to prevent ingress of water in the area where the capacitive sensor is arranged. Due to the water, the electric field is disturbed, so that the capacitive field of
- the object of the invention is to provide a mounting component in which the sensitivity of a capacitive sensor is improved.
- the filling element has an inner portion and an outer portion, wherein the outer portion is formed of an electrically non-conductive material and the inner portion of an electrically conductive material is formed and the inner portion as an electrical coupling element for coupling an electric field of capacitive sensor is formed.
- the electric field of the capacitive sensor can couple directly into the coupling element and indirectly or be led directly over the mounting component in the external environment. For example, if a body part, in particular a foot or a hand passes into the arranged in the external environment electric field, detects a
- Motor vehicle lock can be operated.
- Submerge section when the capacitive sensor is formed for example, as a metal plate.
- the metal plate is preferably designed as a mandrel and can be inserted and / or glued into the inner portion of the filling element and thus forms a non-positive and / or positive and / or material connection with the inner portion.
- the capacitive sensor is arranged in the vicinity of the inner portion of the filling element and spaced from the inner portion of the filling element. In this case, immersion of the capacitive sensor in the inner portion of the filler is excluded. Either the capacitive sensor touches the inner portion or the capacitive sensor is spaced close to the inner portion. Close range means then that the electric field of the capacitive sensor can still reliably couple into the electrically conductive inner portion of the filling element, so that the inner portion of the filling element is designed as a coupling element.
- the inner portion is formed of a conductive foam, which in particular comprises carbon.
- a conductive foam which in particular comprises carbon.
- the carbon can be integrated in the form of ash in the foam, but also carbon particles are possible.
- a conductive silicone such as Sikaflex serve.
- the inner portion may be formed of a copper plate or a metal plate.
- the sensitivity of the capacitive sensor can be changed in a simple manner if the inner section has at least one passage opening, preferably in the form of a hole.
- the hole is then preferably filled with air, which has a poorer dielectric than the preferably carbon-containing inner portion of the filling element. Consequently, enlarging the through-hole reduces the dielectric properties of the filler, and thus, if necessary, the sensitivity of the capacitive sensor can also be lowered.
- the passage opening can also be replaced by a recess, for example in the form of a trough. Basically, with an increased proportion of air in the inner portion of the filling element, the sensitivity of the capacitive sensor is reduced.
- the outer portion is formed of an electrically non-conductive foam, which is in particular made of plastic.
- the weight of the assembly component, in particular of the filler element can be reduced, and consequently the CO2 emissions of the motor vehicle are also reduced.
- the inner portion is non-positively and / or positively and / or materially connected to the outer portion
- the inner portion of the filling element can be glued and / or inserted, for example, in the outer portion. It is also conceivable that the inner portion is formed as a conductive potting compound, which in a
- the electronic unit comprises a box in which the capacitive sensor and an electrical circuit board are arranged.
- the box protects, especially the capacitive sensor and the electronic board from moisture and dirt.
- Electronic unit may also include a control unit, which may also be arranged in the box.
- the control unit may also be arranged at another location in the motor vehicle.
- a potting compound is arranged, which encloses at least the capacitive sensor. The potting compound further ensures that the capacitive sensor and other electrical components, such as the electrical circuit board, can be safely stored in the box.
- the capacitive sensor in particular as a mandrel is formed and at least partially protruding from the electronics unit, in particular from the box.
- the electric field of the capacitive sensor can be guided directly or indirectly into the electrically conductive inner portion in order to improve the sensitivity of the capacitive sensor.
- the mounting component is formed at least partially from a non-conductive material, in particular from plastic.
- the filling element can be arranged between the electronics unit, in particular an outer wall of the box, and the wall of the mounting component. It is preferably used where an air gap between the wall of the mounting component and the electronics unit, in particular the outer wall of the box, has formed due to the structural design of the mounting unit. Thus, it is advantageously prevented that moisture enters this air gap, which negatively influences the sensitivity of the capacitive sensor.
- the filling element can be frictionally and / or between the electronics unit, in particular the outer wall of the box, and the wall of the mounting member
- the mounting of the filling element can be very simple and advantageous if the filling element between the electronic unit, in particular the outer wall of the electronic unit, and the wall of the mounting member by means of an adhesive is einklebbar. Alternatively, the filling element can also only between the
- the capacitive sensor is designed as an electrode.
- the capacitive sensor may be formed as a foil or as a metallic plate which may be mounted on a circuit board.
- the assembly component is designed as a door handle or as a bumper or as a tailgate or as a front flap.
- a door handle may comprise a plurality of capacitive sensors, namely a first capacitive sensor for unlocking the motor vehicle and a second capacitive sensor for locking the motor vehicle.
- a bumper may have two capacitive sensors that must be operated at least once in succession to unlock the tailgate.
- the mounting component can also be arranged inside the motor vehicle, for example on a dashboard.
- the mounting component according to the invention is based on two
- FIG. 1 shows a mounting component designed as a door handle, which has a cutout comprising an electronics unit and a filling element according to a first embodiment
- FIG. 2 shows a mounting component designed as a door handle, which has a cutout comprising an electronics unit and a filling element according to a second embodiment
- FIG. 3 shows the filling element in an exploded view
- Figure 4 shows the filling element in a perspective view
- Figure 5 shows an alternative embodiment of the filling element.
- FIG. 1 shows a mounting component 1 designed as a door handle for a motor vehicle according to a first embodiment.
- the mounting member 1 is at least partially made of a non-conductive material, in particular made of plastic.
- the mounting member 1 may alternatively be used as a bumper or as
- Door handle has a handle body 2 and a cover 3, which together form a housing, in the inner space 4, an electronic unit 5 is arranged.
- the electronics unit 5 comprises a box 6 in which a first capacitive sensor 7 designed as an electrode and an electrical circuit board 8 are arranged.
- a second capacitive sensor in the
- the first capacitive sensor 7 could serve as a proximity sensor, which unlocks a motor vehicle door lock after its actuation by the user
- the second capacitive sensor could serve as a touch sensor, which locks a motor vehicle door lock after its actuation by the user.
- a potting compound 9 is arranged in the box 6, the at least the capacitive sensor 7 and
- the electronics unit to a wall 10 of the mounting member 1, in particular arranged to a disposed within the door handle wall 10 of the cover 3, spaced, so that between the electronic unit 5 and the wall 10, a gap 1 1 , in particular an air gap exists. If there is air in the gap, in particular in the area of the capacitive sensor 7, the sensitivity of the capacitive sensor is adversely affected, in particular if moisture accumulates within the air gap. If too much moisture within the gap, this may even lead to a total failure of the capacitive sensor 7, because the electric field of the capacitive sensor 7 is then shielded and no longer enters the external environment.
- a filling element 12 is provided in the region of the capacitive sensor 7 between the electronic unit 5 and the wall 10 of the mounting component 1.
- the filling element 12 between the electronic unit 5, in particular an outer wall 13 of the box 6, and the wall 10 of the mounting member 1 can be used.
- the filling element 12 is preferably glued between the electronic unit 5, in particular the outer wall 13 of the box 6, and the wall 10 of the mounting component 1 by means of an adhesive, so that a cohesive connection is formed.
- the filling element 12 could also by means of a non-positive and / or positive
- the filling member 12 has an inner portion 14 and an outer portion 15, wherein the outer portion 15 is formed of an electrically non-conductive material and the inner portion 14 is formed of an electrically conductive material.
- the outer portion 15 may be formed of an electrically non-conductive foam, which is in particular made of plastic.
- the inner portion 14, however, is formed of a conductive foam, which in particular comprises carbon. The inner portion 14 is therefore formed as an electrical coupling element for coupling in the electric field of the capacitive sensor 7.
- the capacitive sensor 7 is arranged in the vicinity of the inner portion 14 of the filling element 12 and spaced from the inner portion 14 of the filling element 12 is.
- FIGS. 3 to 5 One possible construction of the filling element 12 is shown in FIGS. 3 to 5, wherein FIGS. 3 and 4 show a first variant of the filling element 12, and FIG. 5 shows a second variant of the filling element 12.
- the filling element 12 has a cuboidal configuration. Alternatively, a cylindrical configuration of the filling element 12 would be conceivable. in the
- the present case is the inner portion 14 formed as a foam
- the inner portion 14 can be inserted or glued into the outer portion 15.
- the filling element is visualized according to a second variant, in which the filling element 12, in particular the inner portion 14 at least one passage opening 16, preferably a second passage opening 17 which is configured for example in the form of a hole to the sensitivity if necessary of the capacitive sensor 7 to lower.
- a second embodiment is disclosed, which has a similar structure to the first embodiment.
- the capacitive sensor 7 is formed as a mandrel and is at least partially from the
- the capacitive sensor 7 is at least partially in the inner portion 14 of the filling element 12 arranged so that a coupling of the electric field takes place directly into the inner portion 14.
- the sensitivity of the capacitive sensor 7 can be further improved.
- the inner portion 14 may also be formed of a copper plate or a metal plate.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017112790.9A DE102017112790A1 (de) | 2017-06-09 | 2017-06-09 | Montagebauteil für ein Kraftfahrzeug |
PCT/EP2018/052271 WO2018224190A1 (de) | 2017-06-09 | 2018-01-30 | Montagebauteil für ein kraftfahrzeug |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3635868A1 true EP3635868A1 (de) | 2020-04-15 |
Family
ID=61163699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18703276.8A Withdrawn EP3635868A1 (de) | 2017-06-09 | 2018-01-30 | Montagebauteil für ein kraftfahrzeug |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3635868A1 (de) |
DE (1) | DE102017112790A1 (de) |
WO (1) | WO2018224190A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019206282A1 (de) | 2019-05-02 | 2020-11-05 | Witte Automotive Gmbh | Türentriegelungs- und/oder Türöffnungsmechanismus mit einer Betätigungsvorrichtung |
JP7457564B2 (ja) | 2020-04-13 | 2024-03-28 | 株式会社ユーシン | ドアハンドル装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2837602B1 (fr) * | 2002-03-21 | 2006-11-10 | Valeo Electronique | Systeme de detection de presence etanche notamment pour une poignee d'ouvrant |
JP4342207B2 (ja) * | 2003-04-22 | 2009-10-14 | アイシン精機株式会社 | 車両用ドアハンドル装置 |
DE102012101882A1 (de) * | 2012-03-06 | 2013-09-12 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Fahrzeugtürgriff mit kapazitivem Annäherungssensor |
DE102012107189A1 (de) * | 2012-07-18 | 2014-01-23 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Elektronikmodul für eine Handhabe |
-
2017
- 2017-06-09 DE DE102017112790.9A patent/DE102017112790A1/de not_active Withdrawn
-
2018
- 2018-01-30 WO PCT/EP2018/052271 patent/WO2018224190A1/de active Application Filing
- 2018-01-30 EP EP18703276.8A patent/EP3635868A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE102017112790A1 (de) | 2018-12-13 |
WO2018224190A1 (de) | 2018-12-13 |
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Inventor name: BEXTERMOELLER, HUBERT Inventor name: RAULIN, SEBASTIAN |
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