# US 12,015,307 B2 · Coil component and electronic expansion valve with coil component > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,015,307 B2 - Document ID: US12015307B2 - Status: Granted - Kind: B2 - Application number: 17/435,693 - Filed: 2020-03-13 - Published: 2022-05-19 - Granted: 2024-06-18 - Earliest claimed: 2019-04-02 - Assignees: Zhejiang Dunan Artificial Environment Co., Ltd. - Applicants: Zhejiang Dunan Artificial Environment Co., Ltd. - Inventors: Bofeng Yuan; Yuanyang Lin - Web page: https://patentgrep.com/patent/US12015307B2 ## CPC - H02K 1/12: Stationary parts of the magnetic circuit - H02K 11/40: Structural association with grounding devices - F16K 31/0655: {Lift valves} - F16K 31/0675: {Electromagnet aspects, e.g. electric supply therefor} - F16K 37/0083: {by measuring valve parameters} - H01F 7/128: Encapsulating, encasing or sealing - H02K 3/525: {Annular coils, e.g. for cores of the claw-pole type} - H02K 5/04: Casings or enclosures characterised by the shape, form or construction thereof - H02K 11/0094: {Structural association with other electrical or electronic devices} - H02K 11/20: for measuring, monitoring, testing, protecting or switching (rectifiers H02K11/04; power electronics H02K11/33) - H02K 11/21: Devices for sensing speed or position, or actuated thereby (specially adapted for machines having non-mechanical commutating devices H02K29/06, H02K29/14) - H02K 11/30: Structural association with control circuits or drive circuits - Y02B 30/70: Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) - F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)} - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS ## Abstract Disclosed are a coil component and an electronic expansion valve with the coil component. The coil component includes an injection molded part, a stator housing, a stator pole plate and a circuit board. The stator housing, the stator pole plate and the circuit board are all provided in the injection molded part. The coil component further includes: a fixing part, the fixing part is provided in the injection molded part; a conductive part, the conductive part is provided on the fixing part, and the conductive part is configured to conductively connect at least one of the stator housing and the stator pole plate to the circuit board; and a sensor, the sensor is provided on the fixing part, and the sensor is connected to the circuit board. ## Claims ### Claim 1 A coil component, comprising an injection molded part, a stator housing, a stator pole plate and a circuit board, the stator housing, the stator pole plate and the circuit board are all arranged in the injection molded part, wherein the coil component further comprises: a fixing part, wherein the fixing part is arranged in the injection molded part; a conductive part, wherein the conductive part is arranged on the fixing part, the conductive part is configured to conductively connect at least one of the stator housing and the stator pole plate to the circuit board; and a sensor, wherein the sensor is arranged on the fixing part, and the sensor is connected with the circuit board; wherein a first connecting part is arranged on the fixing part, and a second connecting part is arranged on the conductive part, the first connecting part is connected with the second connecting part. ### Claim 2 (depends on 1) The coil component according to claim 1, wherein the first connecting part comprises a protrusion, the second connecting part comprises a positioning hole, and the first connecting part passes through the second connecting part; or, the first connecting part comprises a positioning hole, the second connecting part comprises a protrusion, and the second connecting part passes through the first connecting part. ### Claim 3 (depends on 1) The coil component according to claim 1, wherein the fixing part is made of plastic, the first connecting part comprises a protrusion, and the second connecting part comprises a positioning hole, wherein, the first connecting part and the second connecting part are fixedly connected by hot riveting or ultrasonic welding. ### Claim 4 (depends on 1) The coil component according to claim 1, wherein a first mounting groove is arranged on the fixing part, and the first connecting part is arranged in the first mounting groove, wherein, at least part of the conductive part (60) is arranged in the first mounting groove. ### Claim 5 (depends on 1) The coil component according to claim 1, wherein the conductive part comprises an elastic sheet, the conductive part is connected with the circuit board, and at least one of the stator housing and the stator pole plate is connected with the conductive part. ### Claim 6 (depends on 5) The coil component according to claim 5, wherein the stator housing is connected with the stator pole plate, and the at least one of the stator housing and the stator pole plate is contacted with the conductive part. ### Claim 7 (depends on 6) The coil component according to claim 6, wherein the conductive part comprises: a first conductive section, wherein the first conductive section is connected with the fixing part; a second conductive section, wherein the second conductive section is connected with the circuit board; and an abutting section, wherein the abutting section is a curved section, the abutting section abuts against the stator housing, wherein, the first conductive section is located between the abutting section and the second conductive section, as to connect the second conductive section and the abutting section. ### Claim 8 (depends on 1) The coil component according to claim 1, wherein the fixing part is provided with a through hole, and the sensor comprises: a body part arranged on the fixing part; and a pin arranged on the body part, wherein the pin passes through the through hole and is connected with the circuit board. ### Claim 9 (depends on 8) The coil component according to claim 8, wherein a second mounting groove is arranged at an end, away from the circuit board, of the fixing part, the body part is arranged in the second mounting groove, a side, away from the conductive part, of the fixing part is provided with an accommodating groove, and a part of the pin is arranged in the accommodating groove. ### Claim 10 (depends on 1) The coil component according to claim 1, wherein the injection molded part is provided with a limiting groove, and the fixing part is arranged in the limiting groove. ### Claim 11 (depends on 1) An electronic expansion valve, comprising the coil component according to claim 1. ### Claim 12 (depends on 2) The coil component according to claim 2, wherein the conductive part comprises an elastic sheet, the conductive part is connected with the circuit board, and at least one of the stator housing and the stator pole plate is connected with the conductive part. ### Claim 13 (depends on 3) The coil component according to claim 3, wherein the conductive part comprises an elastic sheet, the conductive part is connected with the circuit board, and at least one of the stator housing and the stator pole plate is connected with the conductive part. ### Claim 14 (depends on 11) The electronic expansion valve according to claim 11, wherein a first connecting part is arranged on the fixing part, and a second connecting part is arranged on the conductive part, the first connecting part is connected with the second connecting part. ### Claim 15 (depends on 14) The coil component according to claim 14, wherein the first connecting part comprises a protrusion, the second connecting part comprises a positioning hole, and the first connecting part passes through the second connecting part; or, the first connecting part comprises a positioning hole, the second connecting part comprises a protrusion, and the second connecting part passes through the first connecting part. ### Claim 16 (depends on 14) The coil component according to claim 14, wherein the fixing part is made of plastic, the first connecting part comprises a protrusion, and the second connecting part comprises a positioning hole, wherein, the first connecting part and the second connecting part are fixedly connected by hot riveting or ultrasonic welding. ### Claim 17 (depends on 14) The coil component according to claim 14, wherein a first mounting groove is arranged on the fixing part, and the first connecting part is arranged in the first mounting groove, wherein, at least part of the conductive part (60) is arranged in the first mounting groove. ### Claim 18 (depends on 11) The coil component according to claim 11, wherein the conductive part comprises an elastic sheet, the conductive part is connected with the circuit board, and at least one of the stator housing and the stator pole plate is connected with the conductive part. ### Claim 19 A coil component, comprising an injection molded part, a stator housing, a stator pole plate and a circuit board, the stator housing, the stator pole plate and the circuit board are all arranged in the injection molded part, wherein the coil component further comprises: a fixing part, wherein the fixing part is arranged in the injection molded part; a conductive part, wherein the conductive part is arranged on the fixing part, the conductive part is configured to conductively connect at least one of the stator housing and the stator pole plate to the circuit board; and a sensor, wherein the sensor is arranged on the fixing part, and the sensor is connected with the circuit board; wherein the fixing part is provided with a through hole, and the sensor comprises: a body part arranged on the fixing part; and a pin arranged on the body part, wherein the pin passes through the through hole and is connected with the circuit board. ### Claim 20 (depends on 19) The coil component according to claim 19, wherein a second mounting groove is arranged at an end, away from the circuit board, of the fixing part, the body part is arranged in the second mounting groove, a side, away from the conductive part, of the fixing part is provided with an accommodating groove, and a part of the pin is arranged in the accommodating groove.