A vibration motor grounding structure and automobile

Abstract

The invention discloses a vibration motor grounding structure and an automobile. The vibration motor grounding structure comprises a metal support, a vibration motor and a metal connection piece. The vibration motor comprises a motor body and a PCB in electric connection with the motor body terminal. The motor body is fixed to the metal support and the metal support is provided with a connection hole. One end of the PCB is a connection end. The metal connection piece is fixed to the connection end. The metal connection piece is provided with an outwardly protruding elastic sheet; the connection end and the metal connection piece are inserted into the connection hole; and the elastic sheet and the connection end abut against the inner wall of the connection hole respectively. In the grounding structure, the metal connection piece and the PCB are inserted into the connection hole of the metal support; the metal connection piece and the metal support are in reliable contact. The grounding effect of the motor becomes more stable. With a simple structure, the metal connection piece is easy to assemble.

Description

Technical field [0001] The invention relates to the technical field of motors, in particular to a vibration motor grounding structure and automobiles. Background technique [0002] The vehicle steering wheel vibration motor requires good grounding and good electromagnetic compatibility (Electro Magnetic Compatibility, EMC), and the electronic components on the PCB board must be designed with a grounding structure. In the existing technology, such as Figure 1-Figure 6 As shown, one end of the PCB board 4'is electrically connected to the terminal on the vibration motor, and the other end is connected with a metal connector 3'. The metal connector 3'is generally a stepped connector. Among the two parallel ends, one end is connected to PCB board 4'is fixedly connected, and the shell of the vibration motor at the other end is in contact to achieve the grounding effect. The end of the metal connector 3'that is in contact with the vibration motor protrudes toward the housing of the vib...

AI Technical Summary

Problems solved by technology

[0003] However, in this grounding structure, only one end of the PCB board 4' is fixed to the vibrating motor. When the vibrating motor vibrates, it will drive the PCB board 4' to vibrate, thereby causing the metal connector 3' connected to the other end of the PCB board 4' to vibrate. , because the metal connector 3' has no other fixed structure, the contact between the metal connector 3' and the shell of the vibration motor cannot be guaranteed, and a stable grounding effect cannot be guaranteed; in addition, the metal connector 3' only connects with the vibration motor through an arc-shaped arc surface. This grounding structure requires high assembly accuracy of the PCB board 4' and the metal connector 3'. When the error is large, it is easy to cause the bumps to fail to contact the shell of the vibration motor, which is difficult to assemble.

Images