Electromechanical solenoid having a pole piece alignment member
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01F-007/16
H01F-005/02
출원번호
US-0284595
(2014-05-22)
등록번호
US-9659698
(2017-05-23)
발명자
/ 주소
Schmitz, Matthew
Schmitt, Austin
Stephens, Kirt
Rode, Kevin
출원인 / 주소
HUSCO AUTOMOTIVE HOLDINGS LLC
대리인 / 주소
Quarles & Brady LLP
인용정보
피인용 횟수 :
0인용 특허 :
13
초록▼
An electromechanical solenoid has a solenoid assembly including a solenoid coil with a coil aperture formed therein. A pole piece assembly is positioned at least partially within the coil aperture, the pole piece assembly including a first pole piece and a second pole piece positioned at least parti
An electromechanical solenoid has a solenoid assembly including a solenoid coil with a coil aperture formed therein. A pole piece assembly is positioned at least partially within the coil aperture, the pole piece assembly including a first pole piece and a second pole piece positioned at least partially within an hour-glass shaped alignment member. The first pole piece has a first bore and a first outer tapered surface extending away from the first bore, and the second pole piece has a second bore and a second outer tapered surface extending away from the second bore. An armature is moveable within the first bore and the second bore in response to a magnetic field produced by the solenoid coil.
대표청구항▼
1. An electromechanical solenoid comprising: a solenoid assembly including a solenoid coil with a coil aperture formed therein; anda pole piece assembly positioned at least partially within the coil aperture, the pole piece assembly including a first pole piece and a second pole piece positioned at
1. An electromechanical solenoid comprising: a solenoid assembly including a solenoid coil with a coil aperture formed therein; anda pole piece assembly positioned at least partially within the coil aperture, the pole piece assembly including a first pole piece and a second pole piece positioned at least partially within an hour-glass shaped alignment member, the first pole piece having a first bore and a first outer tapered surface extending away from the first bore, the second pole piece having a second bore and a second outer tapered surface extending away from the second bore, and an armature moveable within the first bore and the second bore in response to a magnetic field produced by the solenoid coil. 2. The assembly according to claim 1, wherein the first pole piece has a first open end and a first closed end defining the first bore, and the second pole piece has a second open end and a second closed end defining the second bore. 3. The assembly according to claim 1, wherein the alignment member has an interior surface that tapers inward from a first end and a second end to form a center portion, the center portion having a center portion diameter that is less than a diameter at the first end and a diameter at the second end, the alignment member forming a first alignment portion for receipt of at least a portion of the first outer tapered surface, and a second alignment portion for receipt of at least a portion of the second outer tapered surface. 4. The assembly according to claim 3, wherein the first open end and the second open end face each other inside the alignment member when the first pole piece and the second pole piece are seated in the alignment member, the first open end and the second open end defining a gap between the first open end and the second open end. 5. The assembly according to claim 1, further including a housing, the housing having a first pole piece aperture at one end and a second pole piece aperture at an opposite end, the first pole piece extending into the first pole piece aperture and the second pole piece extending into the second pole piece aperture. 6. The assembly according to claim 5, wherein the alignment member provides a predetermined interference on one or both of the first pole piece and the second pole piece to create a force on one or both of the first pole piece and the second pole piece to push at least one of the firs-t pole piece and the second pole piece against the housing. 7. An assembly for use with a solenoid, the assembly comprising: a first pole piece having a first end and defining a first bore, and a first outer surface tapering outward from the first end;a second pole piece having a second end and defining a second bore, and a second outer surface tapering outward from the second end; andan alignment member having an interior surface that tapers inward from a member first end and a member second end to form a center portion, the center portion having a center portion diameter that is less than a diameter at the member first end and a diameter at the member second end, the alignment member forming a first alignment portion for receipt of at least a portion of the first outer surface of the first pole piece, and a second alignment portion for receipt of at least a portion of the second outer surface of the second pole piece. 8. The assembly according to claim 7, further including an armature moveable within the first bore and the second bore. 9. The assembly according to claim 8, wherein the armature includes a push member extending from and end of the armature. 10. The assembly according to claim 8, wherein the armature includes a roller bearing on an outer surface of the armature. 11. The assembly according to claim 10, wherein the roller bearing is at least partially in contact with the first bore. 12. The assembly according to claim 9, wherein the second pole piece further includes a first aperture at a second closed end to allow the tubular push member to extend through the second closed end. 13. The assembly according to claim 7, further including a coil having an aperture, the assembly being insertable into the aperture. 14. The assembly according to claim 13, wherein the armature is moveable within the first bore and the second bore in response to a magnetic field produced by the coil. 15. The assembly according to claim 7, wherein he first outer surface tapers outward from the first end and forms a first ledge. 16. The assembly according to claim 7, wherein the second outer surface tapers outward from the second end and forms a flange that projects outwardly from the second outer surface. 17. The assembly according to claim 7, wherein a gap is formed between the first end and the second end when the first pole piece and the second pole piece are seated in the alignment member. 18. The assembly according to claim 7, wherein the alignment member forms an hour glass shape. 19. The assembly according to claim 7, wherein the alignment member includes a flange that projects outwardly from the member second end. 20. The assembly according to claim 7, wherein the interior surface of the alignment member centers and aligns the first pole piece and the second pole piece when inserted into the alignment member. 21. An electromechanical solenoid comprising: a housing;a solenoid assembly positioned at least partially within the housing, the solenoid assembly including a solenoid coil in a non-magnetic bobbin, the solenoid assembly forming a coil aperture; anda pole piece assembly positioned at least partially within the coil aperture, the pole piece assembly including a first magnetically conductive pole piece and a second magnetically conductive pole piece positioned at least partially within an hour-glass shaped alignment member, the first pole piece having a first open end defining a first bore and a first outer surface extending away from the first bore, the second pole piece having a second open end defining a second bore and a second outer surface extending away from the second bore, and an armature moveable within the first bore and the second bore in response to a magnetic field produced by the solenoid coil. 22. The assembly according to claim 21, wherein the first open end and the second open end face each other inside the alignment member when the first pole piece and the second pole piece are seated in the alignment member, a gap being defined between the first open end and the second open end. 23. The assembly according to claim 21, further including an over mold applied over at least a portion of an exterior surface of the housing, the over mold having at least one tab, the tab including an aperture. 24. The assembly according to claim 21, wherein the alignment member is made of a non-ferromagnetic material. 25. The assembly according to claim 21, wherein the armature includes a tubular push member. 26. The assembly according to claim 25, wherein the alignment member has an interior surface that tapers inward from a first end and a second end to form a center portion, the center portion having a center portion diameter that is less than a diameter at the first end and a diameter at the second end, the alignment member forming a first alignment portion for receipt of at least a portion of the first outer surface, and a second alignment portion for receipt of at least a portion of the second outer surface. 27. The assembly according to claim 26, wherein the tubular push member projects outward from the second end. 28. The assembly according to claim 21, the housing having a first pole piece aperture at one end and a second pole piece aperture at an opposite end, the first pole piece extending into the first pole piece aperture and the second pole piece extending into the second pole piece aperture. 29. The assembly according to claim 28, wherein the alignment member provides a predetermined interference on one or both of the first pole piece and the second pole piece to create a force on one or both of the first pole piece and the second pole piece to push at least one of the first pole piece and the second pole piece against the housing. 30. A method for assembling an electromechanical solenoid, the method comprising the steps of: providing a solenoid assembly including a solenoid coil, the solenoid assembly forming a coil aperture;placing a first pole piece into the coil aperture, the first pole piece having a first open end and a first closed end defining a first bore, and a first outer surface tapering outward from the first open end;placing an alignment member into the coil aperture and at least partially over the first outer surface, the alignment member having an interior surface that tapers inward from a member first end and a member second end to form a center portion, the alignment member forming a first alignment portion for receipt of at least a portion of the first outer surface, and a second alignment portion for receipt of at least a portion of a second outer surface of a second pole piece;placing an armature into the coil aperture and into the alignment member such that the armature extends into the center portion; andplacing the second pole piece into the coil aperture, the second pole piece having a second open end and a second closed end defining a second bore, and the second outer surface tapering outward from the second open end, the second outer surface extending at least partially into the second alignment portion. 31. The method according to claim 30, further including placing the solenoid assembly, including the first pole piece, the alignment member, the armature, and the second pole piece, into a housing.
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이 특허에 인용된 특허 (13)
Neff ; James A., Alignment means for a moveable pole-plunger assembly.
Chiba Akio (Hitachi JPX) Imahashi Hiromichi (Hitachi JPX) Tomita Sadami (Katsuta JPX) Utsumi Yoshiharu (Katsuta JPX), Magnetic pole pieces for use in a nuclear magnetic resonance apparatus.
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