Capacitive automobile steering column switch
An automotive steering column, capacitive technology, applied in electronic switches, electrical components, pulse technology and other directions, can solve the problems of short life of each component, wear of each component, complex mechanical structure, etc., to achieve simple structure, avoid wear, and improve life. Effect
Inactive Publication Date: 2013-09-04
SHANGHAI KOSTAL HUAYANG AUTOMOTIVE ELECTRIC
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AI Technical Summary
Problems solved by technology
[0003] Most of the existing steering column switches of automobiles adopt contact chute design to realize the collection of steering column switch signals. Due to the use of contact sliding system, frequent mechanical contact is required during the working process of the steering column switch, which easily causes wear and tear on various components, resulting in The life of each component is relatively short, and the complex mechanical structure makes the cost of the steering column switch higher
[0004] In addition, the PCB (Printed Circuit Board) of the existing automotive steering column switch is plated with gold, which makes the cost of the automotive steering column switch relatively high.
Method used
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[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0019] The invention provides a capacitive automobile steering column switch, and provides an automobile steering column switch with long service life and simple structure.
[0020] Please refer to the attached Figure 1-2 , figure 1 A schematic structural diagram of a capacitive automotive steering column switch provided by an embodiment of the present invention; figure 2 for figure 1 Schematic diagram of the top view structure.
[0021] The embodiment o...
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The embodiment of the invention discloses a capacitive automobile steering column switch comprising a support frame, a PCB (printed circuit board), a capacitance sensor and two deflector rods, wherein the PCB is arranged on the support frame, two rows of metal sheet electrodes are symmetrically arranged on the PCB, and each row of metal sheet electrodes comprise a plurality of metal sheet electrodes; the capacitance sensor is connected with the metal sheet electrodes; the two deflector rods are respectively arranged at both sides of the support frame in a ball articulated manner, the articulated end is provided with grounding reeds, and the grounding reed of each deflector rod can move along the distribution direction of the metal sheet electrodes at the side under the driving of the deflector rod. Compared with the contact switch structure in the prior art, the capacitive automobile steering column switch prevents the abrasion among components, thereby prolonging the service life of the automobile steering column switch. Simultaneously, the main body of the capacitive automobile steering column switch adopted in the embodiment of the invention is a capacitor consisting of two metal sheet electrodes; and therefore, the structure is simpler compared with the existing steering column switch.
Description
technical field [0001] The invention relates to the technical field of an automobile steering column switch, and more specifically relates to a capacitive automobile steering column switch. Background technique [0002] Automobile steering column is the component of the hydraulic steering system connecting the steering wheel and the steering gear. Its main function is that the driver transmits the torque to the steering gear through the steering column, and drives the steering gear to deliver the oil supplied by the oil pump to the steering cylinder to realize hydraulic steering. There are multiple car control components on the steering column of the car. The steering column switch is set on the steering column of the car to realize a mechanical and electrical interface between the steering wheel and the vehicle. The steering column switch is generally used to start or stop the wiper. or cleaning device. [0003] Most of the existing steering column switches of automobiles ...
Claims
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IPC IPC(8): H03K17/945
Inventor 林砥屹吴剑伟唐先红
Owner SHANGHAI KOSTAL HUAYANG AUTOMOTIVE ELECTRIC