1. An integrated blade cooler for electronic components comprising a blower, an electric drive and a heatsink, wherein:
(i) said blower comprising a radial impeller and a casing with an inlet and an outlet;
(ii) said radial impeller comprising blades, a backplate disk and an axis of rotation;
(iii) said electric drive comprising a magnetic rotor and a stator made as a part of said casing and located perpendicularly to said axis of rotation;
(iv) at least part of said blades being magnetized in the direction parallel to said axis of rotation and serving as said magnetic rotor;
(v) said heatsink comprising heat-exchanging means and a base providing thermal contact with said electronic component and said heat exchanging means;
(vi) said heat-exchanging means being clothed in a cover plate with an outflow opening;
(vii) said outflow opening being coincided with said inlet, thus cooling gas flows through said heat-exchanging means, said inlet, said radial impeller, and said outlet in a series way.
2. The cooler as claimed in claim 1, wherein said stator being made as a printed circuit board.
3. The cooler as claimed in claim 1, wherein at least part of said cover plate being made as a part of said casing so that said outflow opening serves as said inlet.
4. The cooler as claimed in claim 1, wherein said radial impeller further comprising a shroud made from the magnet-conducting material that contacts with said blades.
5. The cooler as claimed in claim 1, wherein said backplate disk being magnetized.
6. The cooler as claimed in claim 1, wherein said radial impeller further comprising a magnetic shroud.
7. The cooler as claimed in claim 1, wherein said radial impeller being made as a drum type impeller.
8. The cooler as claimed in claim 1, wherein said stator being located on the side of said blower opposite to said heatsink.
9. The cooler as claimed in claim 1, wherein said stator being made as a part of said cover plate.
10. The cooler as claimed in claim 9, further comprising a magnetic insulation between said stator and said heatsink.
11. The cooler as claimed in claim 1, further comprising an additional stator being made as part of said casing and located perpendicularly to said axis of rotation, said additional stator and said stator being located on the opposite sides of said blower.
12. The cooler as claimed in claim 1, wherein said casing further comprising an additional outlet located opposite to said outlet.
13. The cooler as claimed in claim 1, wherein a side part of said casing being made as at least three elements like pillars.
14. The cooler as claimed in claim 1, wherein said heat-exchanging means being pins orand fins.
15. The cooler as claimed in claim 1, wherein said heatsink comprising a recess on the side of said outflow opening, and said blower being located in said recess.
16. The cooler as claimed in claim 15, wherein the depth of said recess is so that the side of said casing opposite to said heatsink being located in about the same level as said cover plate of said heatsink.
17. The cooler as claimed in claim 15, wherein said recess with said blower being located at the central part of said heatsink.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A bus bar of an EPS motor, the bus bar comprising:
an insulator made of insulation material and configured to form a body of the bus bar for supplying an electric power with at least three or more different polarities to a coil wound on a stator of the motor, the insulator being coupled to an upper side of the stator;
a first terminal having a plurality of first coil terminal connectors protrusively formed to a circumferential direction at a first height of a periphery of the insulator;
a second terminal having a plurality of second coil terminal connectors protrusively formed at the periphery of the insulator to a circumferential direction at a second height higher than the first height; and
a fixing unit interposed between the first and second terminals in the insulator to fix an arrangement position of the first and second terminals arranged inside the insulator;
wherein the first terminal includes a ring-shaped first body arranged inside the insulator and formed by bending a plate material of a predetermined thickness and connecting both distal ends of the plate material, and wherein the plurality of first coil terminal connectors is bent at both distal ends by being extended from the first body;
wherein the second terminal includes ring-shaped second to fourth bodies in the form of a partial round bent section, wherein both distal ends of each of the ring-shaped second to fourth bodies are mutually distanced inside the insulator such that each of the ring-shaped second to fourth bodies is opened, and wherein the plurality of second coil terminal connectors is bent at a distal end by being extended from the second to fourth bodies; and
wherein the first and second coil terminal connectors are alternately formed so as not to face each other.
2. The bus bar of claim 1, wherein the insulator takes a ring shape with a hollow hole formed at a center, wherein an inner diameter of the insulator corresponds to a diameter of a rotor coupled to a center of the stator, and wherein an outer diameter of the insulator corresponds to an external diameter of the stator.
3. The bus bar of claim 1, wherein the first terminal is arranged at a position higher than a floor surface of the insulator and the second terminal is arranged at a position lower than an upper surface of the insulator.
4. The bus bar of claim 1, wherein distal ends of the first and second coil terminal connectors are spaced apart from the periphery of the insulator, each at a same distance.
5. The bus bar of claim 1, wherein the insulator is injection molded of resin material along with the first and second terminals.
6. The bus bar of claim 1, wherein the fixing unit includes a plurality of pin holes formed at the insulator, wherein the pin holes are formed by a plurality of pins provided at a mold injection-molding the insulator to fix an inner position of the insulator of the first to fourth bodies.
7. The bus bar of claim 6, wherein the pin holes are formed by passing through the upper surface and the lower surface of the insulator.
8. The bus bar of claim 1, wherein the second body is applied with an electric power of first polarity, the third body is applied with an electric power of second polarity, and each diameter of the second to fourth bodies is differently formed.
9. The bus bar of claim 8, wherein a diameter of the third body is the largest while a diameter of the first body is the smallest.
10. The bus bar of claim 8, wherein the first body is bent at least thrice to form the first coil terminal connector, and the second and third bodies are bent at least twice to form the second coil terminal connector.
11. An EPS motor, comprising:
a stator wound with a coil;
a rotor installed at a space centrally formed at the stator, and rotating inside a space by an electrical interaction between a plurality of magnets and the coil of the stator; and
a bus bar coupled to an upper side of the stator, and supplying an electric power having at least three or more mutually different polarities to the coil wound on the stator,
wherein the bus bar comprises:
an insulator made of insulation material and configured to form a body of the bus bar for supplying an electric power with at least three or more different polarities to the coil wound on the stator, the insulator being coupled to an upper side of the stator;
a first terminal having a plurality of first coil terminal connectors protrusively formed to a circumferential direction at a first height of a periphery of the insulator;
a second terminal having a plurality of second coil terminal connectors protrusively formed at the periphery of the insulator to a circumferential direction at a second height higher than the first height; and
a fixing unit interposed between the first and second terminals in the insulator to fix an arrangement position of the first and second terminals arranged inside the insulator;
wherein the first terminal includes a ring-shaped first body arranged inside the insulator and formed by bending a plate material of a predetermined thickness and connecting both distal ends of the plate material, and wherein the plurality of first coil terminal connectors is bent at both distal ends by being extended from the first body;
wherein the second terminal includes ring-shaped second to fourth bodies in the form of a partial round bent section, wherein both distal ends of each of the ring-shaped second to fourth bodies are mutually distanced inside the insulator such that each of the ring-shaped second to fourth bodies is opened, and wherein the plurality of second coil terminal connectors is bent at a distal end by being extended from the second to fourth bodies; and
wherein the first and second coil terminal connectors are alternately formed so as not to face each other.
12. The EPS motor of claim 11, wherein the insulator takes a ring shape with a hollow hole formed at a center, wherein an inner diameter of the insulator corresponds to a diameter of a rotor coupled to a center of the stator, and wherein an outer diameter of the insulator corresponds to an external diameter of the stator.
13. The EPS motor of claim 11, wherein the first terminal is arranged at a position higher than a floor surface of the insulator and the second terminal is arranged at a position lower than an upper surface of the insulator.
14. The EPS motor of claim 11, wherein distal ends of the first and second coil terminal connectors are spaced apart from the periphery of the insulator, each at a same distance.
15. The EPS motor of claim 11, wherein the insulator is injection molded of resin material along with the first and second terminals.
16. The EPS motor of claim 11, wherein the fixing unit includes a plurality of pin holes formed at the insulator, wherein the pin holes are formed by a plurality of pins provided at a mold injection-molding the insulator to fix an inner position of the insulator of the first to fourth bodies.
17. The EPS motor of claim 16, wherein the pin holes are formed by passing through the upper surface and the lower surface of the insulator.
18. The EPS motor of claim 11, wherein the second body is applied with an electric power of first polarity, the third body is applied with an electric power of second polarity, and each diameter of the second to fourth bodies is differently formed.
19. The EPS motor of claim 16, wherein a diameter of the third body is the largest, while a diameter of the first body is the smallest.
20. The EPS motor of claim 16, wherein the first body is bent at least thrice to form the first coil terminal connector, and the second and third bodies are bent at least twice to form the second coil terminal connector.