Electrical braking device

Electrical braking device

  • CN 103,459,217 B
  • Filed: 03/27/2012
  • Issued: 02/15/2019
  • Est. Priority Date: 03/31/2011
  • Status: Active Grant
First Claim
Patent Images

1. a kind of electrical braking device comprising:

  • Output hydraulic pressure room, connect with wheel brake cylinder;

    Piston generates in the output hydraulic pressure room hydraulic before;

    Hydraulic cylinder accommodates the piston in cylinder main body;

    Motor drives the piston to advance by transmitting driving force to the piston;

    AndLimiting mechanism, it is hydraulic act from the outside in the output hydraulic pressure room when, limit the retrogressing of the piston,The limiting mechanism is made of banking pin, which is inserted upwardly into the side orthogonal with the axial direction of the cylinder main bodyIt is fixed on the hydraulic cylinder,It is formed with gap between the internal perisporium of the cylinder main body and the outer surface of the banking pin,Form the cone cell for making the outer diameter undergauge at part corresponding with the internal perisporium of the cylinder main body of the banking pinReducing diameter part, the gap is formed between the reducing diameter part and the internal perisporium of the cylinder main body,It is formed with the abutting part of the banking pin in the peripheral side of the piston,The abutting part is formed in the back side of the flange part supported to elastic component, the elastic component to the piston backwardDirection force is moved back,The abutting part is by the groove portion that is formed on the back side of the flange part along the direction orthogonal with the axial direction of the pistonIt constitutes.

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