PATENT CLAIM ANALYSIS

Application Number: 15764351
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-10
Patent Classification: ["363", "147000"]

Abstract:
To improve the accuracy of detecting a current flowing through an electric compressor after operation of the electric compressor, the electric compressor having a large change in temperature before and after operation. An inverter-integrated electric compressor ( 1 ) that compresses and discharges a refrigerant suctioned therein, includes an inverter device ( 2 ) provided with a circuit board ( 60 ) mounted with an inverter circuit ( 40 ), the inverter device ( 2 ) being integrally incorporated in an inverter case. The circuit board ( 60 ) is provided with a current detection circuit ( 30 ) that detects an input current flowing through the inverter circuit ( 40 ), and an offset correction circuit ( 20 ). The current detection circuit ( 30 ) includes a shunt resistor ( 32 ) that is serially connected to the inverter circuit ( 40 ) and detects a current, and a first amplifier ( 31 ) that amplifies and outputs a voltage appearing as a voltage drop in the shunt resistor ( 32 ). The offset correction circuit ( 20 ) includes a second amplifier ( 21 ) that performs an offset correction of the first amplifier ( 31 ). The first amplifier ( 31 ) and the second amplifier ( 21 ) are integrated into a single integrated circuit.

Claim (Index 4):
A circuit board integrally incorporated as an inverter device in an inverter housing portion of an inverter-integrated electric compressor that compresses and discharges suctioned refrigerant, the circuit board comprising:\n an inverter circuit mounted on the circuit board; a current detection circuit, comprising: a current detection resistor serially connected to the inverter circuit and detects a current, and a first amplifier that amplifies and outputs a voltage appearing as a voltage drop in the current detection resistor, the current detection circuit detecting an input current flowing through the inverter circuit; and an offset correction circuit comprising a second amplifier that performs an offset correction of the first amplifier; the first amplifier and the second amplifier being integrated into a single integrated circuit.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 90.0
- Lexical Diversity: 2.85185
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12442788', '12441408', '12746847', '13265590', '13500775']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8138915791186316
- 35 USC 102 Novelty (BERT): 0.4849765464692564
- Combined Prediction Score: 0.7810000758536941
- Mean Citation Score: 215.879046
- Max Citation Score: 227.54237
- Similarity Product: 171.25773551441074

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test