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CN-121984489-A - Capacitive switch with external touch and internal touch with pressing function

CN121984489ACN 121984489 ACN121984489 ACN 121984489ACN-121984489-A

Abstract

The invention discloses a capacitive switch with external touch and internal touch and pressing functions, wherein a control board is arranged in a containing cavity of a shell component, the control board controls unlocking or locking of a door lock through a wire harness, the shell component is provided with a first side face and a second side face which are arranged oppositely, the first side face is provided with an unlocking mechanism, the second side face is provided with an electronic locking mechanism which is electrically connected with the control board, the unlocking mechanism comprises a pressing unlocking module and a sensing unlocking module, the pressing unlocking module comprises an unlocking button which is arranged on the first side face in a pressing mode, the control board is electrically connected with a micro switch, and the sensing unlocking module comprises a first capacitive sensing piece which is arranged on the unlocking button. The system has the advantages of high integration level, compact structure, redundant design, use safety improvement and misoperation probability reduction through functional partitioning.

Inventors

  • HU JIHUI
  • ZHAO YANWEI
  • ZHANG JIEWEI
  • HU YINJIE

Assignees

  • 宁波华科汽车零部件有限公司

Dates

Publication Date
20260505
Application Date
20260228

Claims (10)

  1. 1. The capacitive switch with the external touch and internal touch functions comprises a shell component (1), wherein the shell component (1) is provided with a containing cavity (10), a control board (2) is arranged in the containing cavity (10), and the control board (2) controls unlocking or locking of a door lock through a wire harness (9), and the capacitive switch is characterized in that the shell component (1) is provided with a first side surface (11) and a second side surface (12) which are oppositely arranged, the first side surface (11) is provided with an unlocking mechanism (3), and the second side surface (12) is provided with an electronic locking mechanism electrically connected with the control board (2); The unlocking mechanism (3) comprises a pressing unlocking module and an induction unlocking module, the pressing unlocking module comprises an unlocking button (31) arranged on the first side face (11) in a pressing mode, the control board (2) is electrically connected with a micro switch (21), and the unlocking button (31) is in pressing fit with the corresponding micro switch (21); the induction unlocking module comprises a first capacitance induction sheet (32) arranged on the unlocking button (31), the first capacitance induction sheet (32) is electrically connected with the control board (2), and the first capacitance induction sheet (32) is at least partially coated on the outer surface of one side, far away from the shell component (1), of the unlocking button (31).
  2. 2. The capacitive switch with the external touch and the internal touch having the pressing function according to claim 1, wherein a conductive elastic piece (5) is arranged between the unlocking button (31) and the shell assembly (1), one end of the conductive elastic piece (5) is abutted against the unlocking button (31) or the first capacitive sensing piece (32), the other end of the conductive elastic piece (5) is abutted against the shell assembly (1) or the control board (2), and two ends of the conductive elastic piece (5) are respectively electrically connected with the first capacitive sensing piece (32) and the control board (2).
  3. 3. The capacitive switch with the external touch and the internal touch having the pressing function according to claim 2, wherein the unlocking button (31) is provided with a guiding sliding part (311) extending along the pressing direction, the housing assembly (1) is provided with a guiding limiting part (13) corresponding to the guiding sliding part (311), and the guiding sliding part (311) is in guiding fit with the guiding limiting part (13) so that the unlocking button (31) slides in a guiding manner relative to the housing assembly (1) along the pressing direction.
  4. 4. The capacitive switch with the external touch and the internal touch having the pressing function according to claim 3, wherein the shell assembly (1) is provided with an anti-release groove (312) corresponding to the anti-release groove (14), and the anti-release groove (312) is in anti-release fit with the anti-release groove (14) so as to restrict the sliding stroke of the unlocking button (31) relative to the shell assembly (1).
  5. 5. The capacitive switch with the external touch and the internal touch having the pressing function according to claim 1, wherein the first capacitive sensing piece (32) comprises a sensing main body (321) and electrical connection portions (322) integrally connected to two ends of the sensing main body (321), the electrical connection portions (322) are integrally bent and connected with the sensing main body (321), the unlocking button (31) is integrally injection-molded on the first capacitive sensing piece (32) through an injection molding process, the sensing main body (321) is coated on one side, far away from the shell assembly (1), of the unlocking button (31), and the electrical connection portions (322) at two ends are attached to one side, close to the shell assembly (1), of the unlocking button (31).
  6. 6. The capacitive switch with the external touch and the internal touch with the pressing function according to claim 5, wherein an arc bending part (3211) is formed between two end electric connection parts (322) at the side part of the induction main body (321), the arc bending part (3211) is attached to the side part of the unlocking button (31), and a buckle (3212) buckled inside the unlocking button (31) is formed at the edge of the arc bending part (3211).
  7. 7. The capacitive switch with the pressing function for external touch and internal touch according to claim 1, wherein the electronic locking mechanism comprises a second capacitive sensing piece (4), and the second capacitive sensing piece (4) is electrically connected with the control board (2).
  8. 8. The capacitive switch with the external touch and the internal touch having the pressing function according to claim 7, wherein the second side surface (12) of the housing assembly (1) is sealed by the glue-filled resin (6), and a buffer member (91) is arranged on one side of the glue-filled resin (6) and the second capacitive sensing piece (4) away from the housing assembly (1).
  9. 9. The capacitive switch with the external touch and the internal touch having the pressing function according to claim 1, wherein a mounting hole (111) communicated with the accommodating cavity (10) is formed in the first side surface (11) of the shell assembly (1), and a breathing film (7) is arranged at the mounting hole (111).
  10. 10. The capacitive switch with the external touch and the internal touch having the pressing function according to claim 1, wherein the first side surface (11) of the shell assembly (1) is provided with a soft rubber cover body (8), and the unlocking mechanism (3) is hermetically wrapped in the soft rubber cover body (8).

Description

Capacitive switch with external touch and internal touch with pressing function Technical Field The invention relates to the technical field of vehicle door switches, in particular to a capacitive switch with external touch and internal touch and pressing functions. Background With the rapid development of the automobile industry, especially the popularization of intelligent networking and electric automobiles, users have put forward higher requirements on the intellectualization of automobiles. The capacitive touch sensor switch is used as an intelligent operation device and is generally integrated in an automobile door handle, and the unlocking or locking function of the automobile door can be realized through touching, so that the use convenience and experience of a user are obviously improved. In the prior art, capacitive touch switches focus on the implementation of a single touch function. For this reason, the current China patent with the bulletin number of CN113790000B proposes an improvement, and this patent discloses an electronic feedback door handle, the handle main part is fixed in on the door, the fine motion assembly is located in the handle main part and with accuse electricity in the car, the user can be through pressing the handle main part trigger the fine motion assembly, the fine motion assembly is triggered through being pressed and is produced the break-make signal and send to the car center accuse, whether the control door lock opens, the fine motion assembly includes micro-gap switch, micro-gap switch can produce the break-make signal under pressing, the handle main part includes the handle skeleton, the handle skeleton is fixed in on the door, be equipped with on the handle skeleton and be used for the holding micro-gap switch's fine motion groove, skeleton inner panel and second soft gum portion, the fine motion groove is along Y direction concave to be located the middle part of handle skeleton, the skeleton is along Y direction is located the inboard of fine motion groove, the fine motion groove is along X direction and Z direction parcel skeleton inner panel, the skeleton inner panel is along the vehicle Y direction is covered by soft gum portion, second gum portion is followed X and Z direction is covered the door handle card frame inner panel, the handle cover is located in the handle cover is located to the handle skeleton side is covered to the handle, the handle cover is located to the handle is covered to the side is covered to the handle is covered to the door. However, the electronic feedback door handle has the following defects that the electronic feedback door handle has a touch unlocking function, but the unlocking mode is single, and the electronic locking function is not provided, in addition, the micro switch of the door handle is arranged on the inner side of the handle cover and has certain dustproof and waterproof capabilities, but the micro switch of the semi-hidden door handle is still in a semi-exposed state, dust and water stains are unavoidably accumulated on the surface of the micro switch on the inner side of the handle cover after long-term use, and the capability of coping with complex environments is still not ideal, so that improvement is needed. Disclosure of Invention The invention aims to provide a capacitive switch with external touch and internal touch and pressing functions, which has the effects of high integration level, compact structure, redundancy design, use safety improvement and misoperation probability reduction through functional partitioning. The capacitive switch with the pressing function for external touch and internal touch comprises a shell component, wherein the shell component is provided with a containing cavity, a control board is arranged in the containing cavity and used for controlling unlocking or locking of a door lock of a vehicle through a wire harness, the shell component is provided with a first side face and a second side face which are oppositely arranged, the first side face is provided with an unlocking mechanism, and the second side face is provided with an electronic locking mechanism electrically connected with the control board; The unlocking mechanism comprises a pressing unlocking module and an induction unlocking module, the pressing unlocking module comprises an unlocking button arranged on the first side face in a pressing mode, the control board is electrically connected with a micro switch, and the unlocking button is in pressing fit with the corresponding micro switch; The induction unlocking module comprises a first capacitance induction piece arranged on the unlocking button, the first capacitance induction piece is electrically connected with the control board, and the first capacitance induction piece is at least partially coated on the outer surface of one side, far away from the shell component, of the unlocking button. Through adopting above-mentioned technical scheme, the release mechanism t