Battery state detecting device

Battery state detecting device

  • CN 105,264,388 B
  • Filed: 06/10/2014
  • Issued: 09/03/2019
  • Est. Priority Date: 06/20/2013
  • Status: Active Grant
First Claim
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1. a kind of battery state detecting device, comprising:

  • The shunt resistance for having resistive element;

    AndThe substrate connection terminal connecting with the circuit substrate for detecting the electric current flowed through from the resistive element, feature existIn;

    The substrate connection terminal is constituted and the interconnecting piece for being substantially parallel to each other middle part with two is formed as one,The middle part is formed substantially linear, and connect with the shunt resistance,Two interconnecting pieces using the both ends of middle part as bottom end to it is prominent with the middle part generally perpendicular direction and with instituteCircuit substrate connection is stated,The resistive element is clipped to be arranged there are two the substrate connection terminal,Contact resistance between the middle part and the shunt resistance is less than the conductor resistance of the middle part,The middle part of the substrate connection terminal is connect by welding with the shunt resistance,The battery state detecting device is able to carry out the amperometric determination using four-terminal method,The bottom end of the interconnecting piece of the substrate connection terminal is linear, and its width is more wider than the width of front end,The width of soldered middle part is identical as the wide bottom end of the width than front end,The position of the change width of the interconnecting piece is set at the bottom surface position more on the lower than the circuit substrate.

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