MOTOR VEHICLE DOOR HANDLE ARRANGEMENT WITH SEALED SPACE FOR ELECTRONICS
20200190870 · 2020-06-18
Assignee
Inventors
Cpc classification
B60R16/0215
PERFORMING OPERATIONS; TRANSPORTING
H01Q1/3283
ELECTRICITY
H01Q1/22
ELECTRICITY
H01R13/405
ELECTRICITY
H01Q1/40
ELECTRICITY
E05B81/76
FIXED CONSTRUCTIONS
H01Q1/44
ELECTRICITY
E05B85/16
FIXED CONSTRUCTIONS
International classification
E05B81/76
FIXED CONSTRUCTIONS
B60R16/02
PERFORMING OPERATIONS; TRANSPORTING
Abstract
A motor-vehicle door handle arrangement includes a handle, the handle including at least one antenna chamber with an antenna arranged therein, the antenna having a ferromagnetic core and a coil wound around the core. The antenna has connection regions for coupling to contact pins. A connection piece is produced by one-time or repeated plastic extrusion of pre-fabricated contact pins. The connection piece is arranged in the recess of the wall of the antenna chamber in a positive and/or non-positive manner, sealing the antenna chamber.
Claims
1.-13. (canceled)
14. A motor vehicle door handle arrangement with a handle, wherein the handle comprises at least one antenna chamber with an antenna arranged therein, which antenna has a ferromagnetic core and a coil wound around the core, wherein the antenna comprises connection regions for the coupling with contact pins for producing electrical contacts, wherein the antenna chamber comprises at least one recess in a wall for the passage of electrically-conducting contact pins, wherein a connection piece is produced by one-time or repeated plastic overmolding of pre-fabricated contact pins, and the connection piece is arranged in the recess of the wall of the antenna chamber in a form-fitting and/or force-fitting manner, sealing the antenna chamber.
15. The motor vehicle door handle arrangement according to claim 14, wherein the connection piece is produced by repeated plastic overmolding of prefabricated contact pins, wherein a plastic material forming a flexible seal is used in the last plastic injection-molding process.
16. The motor vehicle door handle arrangement according to claim 14, wherein the connection piece comprises an antenna chamber groove on the outer side, which groove forms a form-fit together with the recess of the wall of the antenna chamber.
17. The motor vehicle door handle arrangement according to claim 14, wherein the handle comprises a trough, in which an electronic assembly with a circuit board is arranged, wherein the trough comprises at least one recess in a wall for the passage of electrically-conducting contact pins, and wherein the connection piece is arranged in the recess of the wall of the trough in a form-fitting and/or force-fitting manner, sealing the trough.
18. The motor vehicle door handle arrangement according to claim 14, wherein the connection piece comprises a trough groove on the outer side, which forms a form-fit together with a recess of the wall of a trough for accommodating an electronic assembly.
19. The motor vehicle door handle arrangement according to claim 14, wherein the connection piece comprises an antenna chamber groove on the outer side which forms a form-fit together with the recess of the wall of the antenna chamber, and the connection piece comprises a trough groove on the outer side which forms a form-fit together with a recess of the wall of a trough for accommodating an electronic assembly, wherein the antenna chamber groove and the trough groove are arranged in opposite directions.
20. The motor vehicle door handle arrangement according to claim 14, wherein the ferromagnetic core is arranged in a form-fit manner in an antenna carrier, in particular in that the ferromagnetic core is inserted, in the direction of its longitudinal extension, into a groove-shaped or dovetail-shaped receptacle of an antenna carrier.
21. The motor vehicle door handle arrangement according to claim 14, wherein the ferromagnetic core is formed by two parts, in particular two parts equal in length in the direction of the longitudinal extension of the core, which are arranged one behind the other in the antenna core.
22. The motor vehicle door handle arrangement according to claim 14, wherein an antenna carrier is arranged in the antenna chamber, which carrier comprises at least one bending region, wherein the bending region is formed by a material cut-out.
23. The motor vehicle door handle arrangement according to claim 14, wherein an antenna carrier is arranged in the antenna chamber, which carrier accommodates at least one sensor plate of a capacitive proximity sensor.
24. The motor vehicle door handle arrangement according to claim 14, wherein an antenna carrier is arranged in the antenna chamber, wherein at least one sensor plate of a capacitive proximity sensor is arranged in a form-fit manner in the antenna carrier, in particular is inserted into a groove-shaped or dovetail-shaped receptacle of the antenna carrier in the direction of its longitudinal extension, in particular inserted into a receptacle in the opposite direction to a ferromagnetic core inserted into the antenna carrier.
25. The motor vehicle door handle arrangement according to claim 14, wherein an antenna carrier is arranged, wherein at least one sensor plate of a capacitive proximity sensor is arranged in a form-fit manner in the antenna carrier and is inserted into a groove-shaped receptacle of the antenna carrier in the direction of its longitudinal extension, wherein the sensor plate and/or the antenna carrier comprises a latch connection, in which the sensor plate is releasable latched in a pre-mounting position in order to make the mounting of a plug on the sensor plate possible.
26. The motor vehicle door handle arrangement according to claim 14, wherein the contact pins are overmolded and form a connection piece, wherein the connection piece and the antenna carrier are formed in one piece, in particular from the same material.
Description
[0028] An exemplary embodiment of the invention is illustrated in the figures and will be explained hereinafter. The figures show in:
[0029]
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[0050]
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[0053]
[0054] The assembly method and production method for the production of such a motor vehicle door handle arrangement will hereinafter be explained at the same time based upon the following description of Figures.
[0055]
[0056] In accordance with
[0057] The contact pins 11, 12, 13 serve to couple the antenna as well as the sensor plate of the capacitive proximity sensor with the electronics of the motor vehicle door handle.
[0058] In the illustrated exemplary embodiment of
[0059] In an alternative, which is not illustrated, the connection piece 10 is produced in a single plastic injection-molding process using a plastic material suitable as a sealing element. In this case, the contact pins 11, 12, 13 are overmolded with the plastic material suitable as a seal in a single plastic injection-molding process.
[0060]
[0061] The ferromagnetic core 21 is divided in the middle thereof, and thus configured in two parts. The antenna carrier 20 comprises material cut-outs 25, which are aligned with the separating line between the two parts of the ferromagnetic core 21. Through the weakening 25 of the material of the antenna carrier 20 and the central separation of the ferromagnetic core 21, a bending region is generated, which is used to permit slight deformations of the antenna carrier 20 due to the actuation of the handle by a user without that this would lead to a damaging of the ferromagnetic core 21.
[0062]
[0063]
[0064] The sensor plate 27 and the antenna carrier 20 comprise latching elements 28 to latch the sensor plate 27 on the antenna carrier 20 in a pre-mounting position. This pre-mounting position of
[0065] In the exemplary embodiment shown, the latching elements 28 are created by the outer-side lugs on the sensor plate 27, which engage into corresponding recesses in the lateral guidance for the sensor plate 27 on the antenna carrier 20 in the pre-mounting position of
[0066] After placing the contact 13 onto the upwardly-bent contact 29 of the sensor plate 27, the sensor plate 27 with the connection piece 10 placed thereon is inserted into the antenna carrier 20 into its final position in accordance with the representation in
[0067]
[0068] Thus, upon the soldering of the contact pins 11, 12, 13, a pre-assembled antenna assembly 50 is obtained from the antenna carrier 20 and the connection piece 10 attached thereto, as well as the above-described further components.
[0069]
[0070] As shown in
[0071]
[0072] According to
[0073] According to
[0074]
[0075] The antenna assembly 50 composed of the antenna carrier 20 and the connection piece, produced in accordance with
[0076] The antenna of the antenna carrier assembly serves to remotely control the locking system by a user, and to forward the corresponding radio signals to the electronics on the circuit board 40 of
[0077] A plug is provided for the coupling of the electronics of the motor vehicle door handle arrangement with the motor vehicle, the production of which plug is explained on the basis of
[0078] In this two-step plastic injection-molding process of
[0079]
[0080]
[0081] The antenna assembly 50, in turn, is plugged into corresponding recesses of the circuit board 40 from the upper side. The mounting occurs by the plugging-in of the contact pins 11, 12, 13 of the antenna assembly 50 from above into corresponding through-openings in the circuit board 40.
[0082] As a result, the coupling of the contact pins 31, 32 of the plug 30 with the circuit board as well as further the coupling of the contact pins 11, 12, 13 of the antenna assembly 50 with the circuit board 40 follows. Furthermore, a locking plate 41 with contact pins is placed on to the circuit board 40 from above and inserted into corresponding receptacles of the circuit board 40. As a result, the module 60 composed of the antenna assembly 50 including the antenna and the winding as well as the connection piece, the circuit board 40 and the plug 30, is achieved, as shown in
[0083]
[0084] The module 60 thus includes the antenna carrier 20, which receives the antenna with the ferromagnetic core and the coil, as well as the sensor plate, the connection piece 10, through which electrically-conducting contact pins are guided from the antenna and the sensor plate to the circuit board 40 equipped with the electronic components, and are connected to this board, wherein the circuit board 40 is further connected with the plug 30, which serves to produce the electrical contacts for the electronic assembly of the module 60, and wherein the circuit board 40 is connected with the electrical contact pins of the plug. The circuit board 40 forms a load-bearing component of the module 60 here.
[0085]
[0086] In the exemplary embodiment shown, the positioning aids 71, 72, which form a form-fit, are formed by bulges on the inner side of the trough 70, which engage into recesses on the peripheral edges of the circuit board 40. A reverse configuration is likewise possible, in which one or multiple lugs or projections on the peripheral edges of the circuit board engage into corresponding recesses of the trough, and thereby produce a form-fit which serves as a positioning and mounting aid.
[0087] The potting process of the trough 70 with the circuit board 40 arranged therein is shown in
[0088] The sealing of the trough 70 occurs through the seal 16. The trough 70 comprises a recess, in which the seal 16 with the groove 17 is arranged in a form-fit and force-fit manner. The wall of the trough 70 is arranged in groove 17 of the seal 16 in a form-fit manner. At the same time, a clamping effect between the wall of the trough 70 and the seal 16 is generated. For this purpose, the seal 16 is formed from a plastic material which is suitable as a seal and reversibly deformable. The trough groove 17 of the seal 16 and the recess of the trough 70 are adapted to one another accordingly. The trough groove 17 thus forms a positioning aid during the placing-in of the circuit board 40 of the electronic module 60 into the trough 70. Through the clamping effect of the seal 16 in the recess of the wall of the trough 70, the circuit board 40 is, at the same time, secured and fixed against floating during the potting process. The potting material cures after the potting process. The potting material forms a protection of the circuit board 40 and of the soldered contacts against moisture. Furthermore, the potting material serves as a damper against vibration.
[0089] With the potting material cured in the potted trough 70, the electronics assembly 75 is obtained for the further mounting in the handle of the motor vehicle door handle arrangement. The mounting of the assembly 75 in the handle 80 of the motor vehicle door handle arrangement is explained on the basis of
[0090] The pre-assembled assembly 75 including the trough 70 potted with the potting material, and the plug 30, is inserted into the handle 80 in reverse orientation, as can be discerned in
[0091] The sealing of the antenna chamber 81 in the handle 80 likewise occurs by means of the seal 16. The wall of the antenna chamber 81 comprises a recess 82, in which the seal 16 with the groove 18 is arranged in a form-fit and force-fit manner. The seal 16 comprises the second groove 18, which serves as an antenna chamber groove, on the outer side. The antenna chamber groove 18 is formed as a circumferential groove on the outer side on the seal 16, just like the trough groove 17 is. Due to the fact that the orientation during the insertion of the seal 16 into the trough 70 is opposite to the orientation during the insertion of the seal 16 into the antenna chamber, the grooves 17, 18 of the seal 16, which extend across respectively three outer sides of the seal 16, are also arranged in opposite directions.
[0092] The wall of the antenna chamber 81 is arranged in the groove 18 of the seal 16 in a form-fit manner. At the same time, a clamping effect between the wall of the antenna chamber 81 and the seal 16 is produced. For this purpose, the seal 16 is formed, as explained above, from a reversibly deformable plastic material which is suitable as a seal. The antenna chamber groove 18 of the seal 16 and the recess 82 of the antenna chamber 81 are adapted to one another accordingly. Thus, the antenna chamber groove 18 at the same time forms a positioning aid during the insertion of the antenna assembly 50 of the electronic module 60 into the antenna chamber 81. At the same time, the antenna assembly 50 is secured and fixed against floating during the potting process, which is explained below, by means of the clamping effect of the seal 16 in the recess 82 of the wall of the antenna chamber 81. The potting material cures after the potting process.
[0093] After the insertion of the pre-assembled assembly into the handle 80, the antenna chamber 81 is potted with a potting material, as indicated in
[0094] Subsequently, a flexible pad 85 is bonded on to the trough 70, as can be discerned in
[0095] Subsequently, the outer shell 90 is mounted on the handle 80, as shown in
[0096] Furthermore, the outer shell 90 comprises a recess 91, through which a key can be inserted into a lock, which is not shown in
LIST OF REFERENCE CHARACTERS
[0097] 10 connection piece [0098] 11, 12, 13 contact pins [0099] 11, 12, 13 contact pins [0100] 14, 14 positive plastic injection mold [0101] 15, 15 pre-product of connection piece [0102] 16, 16 seal [0103] 17, 17 trough groove [0104] 18, 18 antenna chamber groove [0105] 20, 20 antenna carrier [0106] 21 ferromagnetic core [0107] 22, 23 grooves [0108] 24 protrusion [0109] 25 recess [0110] 26 winding [0111] 27 sensor plate [0112] 28 latching elements [0113] 29 contact [0114] 30 plug [0115] 31, 32 contact pins [0116] 33 positive plastic injection mold [0117] 34 pre-product of the plug [0118] 35 positive plastic injection mold [0119] 36 undercut [0120] 40 circuit board [0121] 41 locking plate [0122] 50, 50 antenna assembly [0123] 60 electronics module [0124] 70 trough [0125] 71, 72 positioning aids [0126] 73 lug [0127] 75 electronics assembly [0128] 80 handle [0129] 81 antenna chamber [0130] 82 wall [0131] 83 electronics chamber [0132] 85 pad [0133] 90 shell [0134] 91 recess [0135] 100 handle arrangement [0136] 101 rotary axis [0137] 102 handle hook