Chip resistor for precise instrument

Abstract

The invention relates to the technical field of a resistor and discloses a chip resistor for a precise instrument. The resistor comprises a chip resistor body, wherein a substrate is fixedly mounted in the middle of the chip resistor body, a groove is formed on an upper surface of the substrate, a through hole is formed on an inner side wall of the groove, a resistor element is fixedly mounted inan inner cavity of the substrate, the resistor element comprises a conductive wire and a single crystal, and a connecting block is fixedly mounted on an outer wall of the single crystal. The resistoris advantaged in that the ceramic chip is poured into a form that an upper surface is provided with the groove, the resistor element is embedded in the groove, the resistor is limited and fixed by thegroove, a conductive film is plated on the upper surface of a resistor single crystal, multiple single crystals are connected in series, the grooves are used for limiting the single crystals, a phenomenon of open circuit of a circuit is effectively prevented by plating the conductive film, moreover, local short circuit of the resistor element is further prevented, the use effect of the resistor is effectively improved, and use safety of the resistor is improved.

Description

technical field [0001] The invention relates to the technical field of resistors, in particular to a chip resistor for precision instruments. Background technique [0002] SMD resistor is a kind of metal glass glaze resistor. It is a resistor made by mixing metal powder and glass glaze powder and printing on the substrate by screen printing. It is resistant to humidity and high temperature, and has a small temperature coefficient, which can greatly save The cost of circuit space makes the design more refined. [0003] The existing chip resistors are often open-circuited during use due to their loose connection or imprecise processing technology, which will cause local damage to the chip resistors during use, and then cause the chip resistors to lose their originality. Some working effects cannot play a corresponding role, and the existing iron chip resistors are prone to mechanical wear during use, which will lead to abnormal circuits. For this reason, we have introduced a ...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a chip resistor for precision instruments, which has the advantages of stable connection, good barrier effect, effective prevention of open circuit phenomenon in the circuit, and effective prevention of local damage to the resistance, and solves the problem of the existing chip resistors in use. In the process of use, it is often caused by loose connection or imprecise processing technology, which leads to open circuit during use, which will cause local damage to the chip resistor during use, and then cause the chip resistor to lose its original working effect and cannot play a role. The corresponding effect, and the existing iron sheet resistance is easy to cause mechanical wear in the process of use, which leads to the problem of abnormal circuit

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