PUMP

• Main Authors: TAM NGUYEN THI THANH, LETHITHANH THAO, KATAOKA YOSHIHIRO, SHIZUKU OSAMICHI, YAHATA TAKANOBU
• Format: Patent
• Language: English; Japanese
• Published: 24.01.2023
• Subjects: BLASTING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

To provide a pump which has enhanced reliability of a stator.SOLUTION: A pump 1 has a rotor 50, a stator assembly 75, a pump part 60 connected to one side in an axial direction of the rotor, a circuit board 80 arranged on the other side in the axial direction of the stator assembly, a support member 10 located inside of a radial direction of the stator assembly and having a rotor housing hart 12 housing the rotor inside, and a resin housing 30 molding the stator assembly and the support member. The rotor housing part has a lid part 12a covering the rotor from the other side in the axial direction, and a cylindrical part 12b located between the rotor and the stator assembly in the radial direction, and opening to one side in the axial direction. The stator assembly has an annular stator core, a plurality of coils attached to the stator core, and a stator cover 90 covering the plurality of coils. The stator cover has a coil holding part 97h holding a coil line extending from the coil and connected to the circuit board.SELECTED DRAWING: Figure 2 【課題】ステータの信頼性を高めたポンプを提供する。【解決手段】ポンプ１は、ロータ５０と、ステータアッシー７５と、ロータの軸方向一方側に繋がるポンプ部６０と、ステータアッシーの軸方向他方側に配置される回路基板８０と、ステータアッシーの径方向内側に位置しロータを内部に収容するロータ収容部１２を有する支持部材１０と、ステータアッシーおよび支持部材をモールドする樹脂ハウジング３０と、を備える。ロータ収容部は、ロータを軸方向他方側から覆う蓋部１２ａと、径方向においてロータとステータアッシーとの間に位置し、軸方向一方側に開口する筒状部１２ｂと、を有する。ステータアッシーは、環状のステータコアと、ステータコアに装着される複数のコイルと、複数のコイルを覆うステータカバー９０と、を有する。ステータカバーは、コイルから延び出て回路基板に接続されるコイル線を保持するコイル保持部９７ｈを有する。【選択図】図２