# US 10,871,441 B2 · Deterioration detection sensor of printed wiring board > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,871,441 B2 - Document ID: US10871441B2 - Status: Granted - Kind: B2 - Application number: 16/234,111 - Filed: 2018-12-27 - Published: 2019-07-25 - Granted: 2020-12-22 - Earliest claimed: 2018-01-23 - Assignees: Fanuc Corporation - Applicants: Fanuc Corporation - Inventors: Fuyuki Ueno - Web page: https://patentgrep.com/patent/US10871441B2 ## CPC - G01N 17/006: {of metals} - G01R 19/0092: {Measuring current only} - G01R 27/00: Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom - G01R 27/02: Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant (by measuring phase angle only G01R25/00) - G01R 27/08: Measuring resistance by measuring both voltage and current - G01R 27/26: Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants {; Measuring impedance or related variables} - G01R 27/2605: {Measuring capacitance (capacitive sensors G01D5/24)} - G01R 27/28: Measuring attenuation, gain, phase shift or derived characteristics of electric four pole networks, i.e. two-port networks; Measuring transient response (in line transmission systems H04B3/46) - G01R 31/50: Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections (testing of sparking plugs H01T13/58) - G01R 31/52: Testing for short-circuits, leakage current or ground faults - H05K 1/181: associated with surface mounted components - H05K 7/1427: {Housings} - H05K 7/20136: {Forced ventilation, e.g. by fans (H05K7/202 takes precedence)} - H05K 2201/10151: Sensor - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) - G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract An object is to provide a deterioration detection sensor of a printed wiring board in which the accuracy of detection is enhanced. A deterioration detection sensor of a printed wiring board is a circuit board which is vertically provided on a printed wiring board, and is soldered to the printed wiring board with a soldering portion at a lower end. The deterioration detection sensor includes a detection surface for detecting a foreign material. The detection surface forms an intersection surface which intersects the planar direction of the printed wiring board. In the deterioration detection sensor as described above, a wiring in the detection surface is broken, and thus the foreign material is detected. ## Claims ### Claim 1 A deterioration detection sensor of a printed wiring board, the deterioration detection sensor comprising: a sensor main body which is provided on the printed wiring board and which includes a detection surface for detecting a foreign material, wherein an intersection surface which intersects and extends in a direction that is orthogonal to a planar direction of the printed wiring board is included, and the intersection surface is oriented with respect to the printed wiring board to interrupt an air current in the planar direction. ### Claim 2 (depends on 1) The deterioration detection sensor of the printed wiring board according to claim 1, wherein the detection surface forms the intersection surface. ### Claim 3 (depends on 1) The deterioration detection sensor of the printed wiring board according to claim 1, the deterioration detection sensor comprising: a separate part which is a member separate from the sensor main body and which forms the intersection surface so as to drop, to the detection surface, a foreign material adhered thereto. ### Claim 4 (depends on 2) The deterioration detection sensor of the printed wiring board according to claim 2, the deterioration detection sensor comprising: a separate part which is a member separate from the sensor main body and which forms the intersection surface so as to drop, to the detection surface, a foreign material adhered thereto. ### Claim 5 (depends on 1) The deterioration detection sensor of the printed wiring board according to claim 1, wherein the detection surface extends in the direction that is orthogonal to the planar direction of the printed wiring board. ### Claim 6 (depends on 1) The deterioration detection sensor of the printed wiring board according to claim 1, wherein the detection surface extends in the planar direction of the printed wiring board. ### Claim 7 A deterioration detection sensor of a device including a printed wiring board, a housing, a cover which has an opening for taking air, and a fan which generates an air current flowing through the opening towards inside of the housing, the deterioration detection sensor comprising: a sensor main body which is provided on the printed wiring board, the sensor main body including a detection surface for detecting a foreign material; and a separate part having an intersection surface which vertically intersects the detection surface for interrupting the air current so as to drop a foreign material adhered thereon towards the detection surface, wherein the separate part is distinct from the sensor main body.