EP0030008A2
Expired / Lapsed
EP
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Miniature motor coil
Assignee: Kangyo Denkikiki KK
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Filing: 1980-11-26
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Granted: —
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Expires: 2000-11-26
Abstract
Abstract Spiral type first and second coils (1, to 1, 3 1 to 3 a ) ofthe same shape and size are arranged on both surfaces of an insulating sheet (31) to be opposite to each other, the insulating sheet is made by piling and bonding two insulating films to each other using bonding agent, the inner ends of the first and second coils which are opposite to each other are connected to each other by connecting sections (2 i to 2 5 ; 4 1 to 4 5 ) via the insulating sheet, and the outer ends are so connected that all coils are connected in series, and terminals (41, 43) are provided on both ends of the series connection (Fig. 5).
Inventors
- 👤 Michio Sudo
- 👤 Hitoshi Miura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 08:50
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/04; H02K3/26
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
184 words
A miniature motor coil in which a plurality of spiral type of first coils (1 1 to 1 12 ) having almost the same shape and size are aligned on an insulating sheet (31); characterized in that said insulating sheet (31) is made of two insulating films (65, 67) bonded to each other by bonding agent (66); that on the other surface of said insulating sheet there are formed, opposite to the respective first coils (1 1 to 112), second coils (3 1 to 3 12 ) each having almost the same shape and size and having a spiral winding direction reverse to that of corresponding one of said first coils when seen from one side of said insulating sheet; that the inner ends of opposing coils of said first and second coils are connected to each other via said insulating sheet; that the outer ends of said first and second coils are connected one another such that all the coils may be connected in series; and that there are provided terminals (41, 43) at both ends of the series connection of coils, respectively.
Claim 2
Dependent Claim
184 words
A miniature motor coil in which a plurality of spiral type of first coils (1 1 to 1 12 ) having almost the same shape and size are aligned on an insulating sheet (31); characterized in that said insulating sheet (31) is made of two insulating films (65, 67) bonded to each other by bonding agent (66); that on the other surface of said insulating sheet there are formed, opposite to the respective first coils (1 1 to 112), second coils (3 1 to 3 12 ) each having almost the same shape and size and having a spiral winding direction reverse to that of corresponding one of said first coils when seen from one side of said insulating sheet; that the inner ends of opposing coils of said first and second coils are connected to each other via said insulating sheet; that the outer ends of said first and second coils are connected one another such that all the coils may be connected in series; and that there are provided terminals (41, 43) at both ends of the series connection of coils, respectively.
Claim 3
Dependent Claim
110 words
A miniature motor coil according to claim 1, in which the opposing relationship between said first coils (1 1 to 1 12 ) and second coils (3 1 to 3 12 ) is shifted from each other in such a way that the conductor portion (35) of at least one winding on one of the opposing coils of said first and second coils may overlap the conductor portion (35') of at least two windings of the other coil and adjacent one so that the overlapping part is more than half the length of a coil in the longitudinal direction of the conductor section of the one winding (Fig. 17, 18).
Claim 4
Dependent Claim
51 words
A miniature motor coil according to claim 1 or claim 2, in which, almost surrounding the outer circumferences of each of said first and second coils, there is provided at least one string of dummy wire (58), which is as fine as the coil conductor (35) and is insulated from them.
Claim 5
Dependent Claim
95 words
A miniature motor coil according to one of the claim 1 through claim 3, in which the conductors of said connecting section (2 1 to 2 12 , 4 1 to 4 12 ), when said first and second coils (1 1 to 1 12 ; 3 1 to 3 12 ) are connected to each other via said insulating sheet (31), are formed opposite to each other and in the relationship of the negative pattern and positive pattern (59, 61), and these negative pattern and positive pattern fill each other and are mutually connected.
Claim 6
Dependent Claim
58 words
A miniature motor coil according to one of the claim 1 through claim 4, in which said terminals (41 to 43, 41' to 43') are formed on both surfaces of said insulating sheet (31) opposite to each other, and the opposing ones (41, 41'; 42, 42' or 43, 43') are connected to each other via the insulating sheet.
Claim 7
Dependent Claim
45 words
A miniature motor coil according to one of the claim 1 through claim 5, in which the connection of said outer ends are made between every two adjacent first coils and between every two adjacent second coils alternately in their arrangement direction (Fig. 5, 6).
Claim 8
Dependent Claim
68 words
A miniature motor coil according to one of the claim 1 through claim 5, in which the connection of said outer ends (76) is made in such a way that the outer end of each of said first coils (1 2 to 1 12 ) is connected to the outer end (76') of adjacent one of second coils (3 1 to 3 11 ) via said insulating sheet.
Claim 9
Dependent Claim
38 words
A miniature motor coil according to one of the claim 1 through claim 7, in which said first and second coils (1 1 to 1 12 ; 3, to 3 12 ) are disposed on one circumference, respectively.
Claim 10
Dependent Claim
108 words
A miniature motor coil according to one of the claim 1 through claim 8, in which a plural number of coil sheets (68, 69; 73 to 75) on which are formed said plural numbers of first and second coils (1 1 to 112; 3 1 to 3 12 ), are placed in pile with their coils being made opposite to one another, and fixed together, said terminals (41, 43) of these sheets being connected to each other so that the coils of all sheets are connected in series and the magnetic fluxes generated by running current through the series connection are added to one another among opposing coils.
Claim 11
Dependent Claim
75 words
A miniature motor coil according to claim 9, in which a pair of said terminals (41, 43) of said coil sheets (73 to 75) are provided at angular interval which is integral times of two times of each coil array pitch and only one terminal (41) on said each coil sheet (73) is made to be opposite to the one terminal (43) on the adjacent coil sheet (74) and connected to each other (Fig. 13).
Claim 12
Dependent Claim
39 words
A miniature motor coil according to one of the claim 1 through claim 7, in which said first and second coils (1 1 to 112; 3 1 to 312) are respectively arranged on a straight line (Fig. 14, 15).
Claim 13
Dependent Claim
62 words
A miniature motor coil according to claim 11, in which said insulating sheet is cylindrically folded into a plurality of layers in a direction of the array of coils; and said coils (1 1 /3 1 ; 1 4 /3 4 ; 1 7 /3 7 ; 110/310) on each wound layer are made to be opposite to each other (Fig. 16).
Claim 14
Dependent Claim
61 words
A miniature motor coil according to claim 12, in which the pitch of the coil conductors (35, 35') of each coil (11, 3 1 ...) is selected to be the same, and the interval between adjacent coils (1 1 , 1 2 ; 3 1 , 3 2 ;...) is selected to become larger the more outside the wound layer is.
Claim 15
Dependent Claim
49 words
A miniature motor coil according to claim 11 or claim 12, in which the interval between each adjacent coils is almost filled with dummy wires (58) which have the same pitch as the pitch of the coil conductors (35, 35') and which are almost parallel to the coil conductors.
Claim 16
Dependent Claim
29 words
A miniature motor coil according to claim 13, in which said dummy wires (58) intersect with each other on the front and rear sides of the insulating sheet (31).
References Cited (Backward Citations)
No citation records indexed.
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