Core assembly for wireless power transmitting device and wireless power transmitting device having the same
First Claim
Patent Images
1. A wireless power transmitting device, comprising:
- a main coil disposed at a first level;
an auxiliary coil disposed at a lower side of the main coil such that the auxiliary coil is located at a second level, which is lower than the first level, and including a first sub coil and a second sub coil, which respectively have a portion overlapped with the main coil and respectively have a size smaller than the main coil in a first direction,wherein a width of the first sub coil and a width of the second sub coil in a second direction are the same as a width of the main coil in the second direction, and each of the first sub coil and the second sub coil are aligned to completely overlap with the main coil in the second direction;
a core of a magnetic substance supporting the main coil and the auxiliary coil,wherein a side wall is formed on the core vertically for accommodating the main coil and the auxiliary coil in a space;
a first support and a second support formed on at a bottom of the core, each of the first and second support inserted into a hollow portion of the first sub coil and the second sub coil respectively; and
a transmitting controller including;
an object detector configured to detect a secondary coil of a wireless power receiving device by detecting a load change of a primary coil, to determine whether an object detected by the load change is the wireless power receiving device by checking an identification (ID) signal is received, anda central controller configured to receive the determination result of the object detector, to transmit a power signal to a driver for transmitting the wireless power via the primary coil, to change the wireless power by controlling the driver based on a charging state signal if the charging state signal is received via the primary coil, and to selectively apply a power to at least one of the main coil and the auxiliary coil based on a detection result by the object detector,wherein the central controller is configured to apply the power to the main coil if the secondary coil is located within the area of the main coil,wherein the central controller is configured to apply the power to the main coil and the first sub coil if the secondary coil is partially overlapped with both the main coil and the first sub coil, andwherein the central controller is configured to apply the power to the main coil and the second sub coil if the secondary coil is partially overlapped with both the main coil and the second sub coil,wherein the first sub coil and the second sub coil are symmetric at a center of the main coil with respect to the second direction, which is perpendicular to the first direction,wherein an inner surface of the side wall contacts at least a portion of the auxiliary coil, andwherein the main coil contacts both the first sub coil and the second sub coil.
2 Assignments
0 Petitions
Accused Products
Abstract
A core assembly used for a wireless power transmitting device and a wireless power transmitting device having the same. The core assembly for the wireless power transmitting device includes: a main coil disposed at a first level; an auxiliary coil disposed at a lower side of the main coil such that the auxiliary coil is located at a second level lower than the first level, and including a first sub coil and a second sub coil, which respectively have a portion overlapped with the main coil and respectively have a size smaller than the main coil; and a core of a magnetic substance configured to accommodate the main coil and the auxiliary coil.
-
Citations
14 Claims
-
1. A wireless power transmitting device, comprising:
-
a main coil disposed at a first level; an auxiliary coil disposed at a lower side of the main coil such that the auxiliary coil is located at a second level, which is lower than the first level, and including a first sub coil and a second sub coil, which respectively have a portion overlapped with the main coil and respectively have a size smaller than the main coil in a first direction, wherein a width of the first sub coil and a width of the second sub coil in a second direction are the same as a width of the main coil in the second direction, and each of the first sub coil and the second sub coil are aligned to completely overlap with the main coil in the second direction; a core of a magnetic substance supporting the main coil and the auxiliary coil, wherein a side wall is formed on the core vertically for accommodating the main coil and the auxiliary coil in a space; a first support and a second support formed on at a bottom of the core, each of the first and second support inserted into a hollow portion of the first sub coil and the second sub coil respectively; and a transmitting controller including; an object detector configured to detect a secondary coil of a wireless power receiving device by detecting a load change of a primary coil, to determine whether an object detected by the load change is the wireless power receiving device by checking an identification (ID) signal is received, and a central controller configured to receive the determination result of the object detector, to transmit a power signal to a driver for transmitting the wireless power via the primary coil, to change the wireless power by controlling the driver based on a charging state signal if the charging state signal is received via the primary coil, and to selectively apply a power to at least one of the main coil and the auxiliary coil based on a detection result by the object detector, wherein the central controller is configured to apply the power to the main coil if the secondary coil is located within the area of the main coil, wherein the central controller is configured to apply the power to the main coil and the first sub coil if the secondary coil is partially overlapped with both the main coil and the first sub coil, and wherein the central controller is configured to apply the power to the main coil and the second sub coil if the secondary coil is partially overlapped with both the main coil and the second sub coil, wherein the first sub coil and the second sub coil are symmetric at a center of the main coil with respect to the second direction, which is perpendicular to the first direction, wherein an inner surface of the side wall contacts at least a portion of the auxiliary coil, and wherein the main coil contacts both the first sub coil and the second sub coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A wireless power transmitting device, comprising:
-
a main coil disposed at a first level; an auxiliary coil located at a second level, which is lower than the first level, and including a first sub coil and a second sub coil, which have a portion overlapped with the main coil, wherein each of the first sub coil and the second sub coil has a width smaller than the main coil in a first axis, while a sum of the widths of the first sub coil and the second sub coil in the first axis is larger than the width of the main coil in the first axis; a core of a magnetic substance supporting the main coil and the auxiliary coil, wherein a side wall is formed on the core vertically for accommodating the main coil and the auxiliary coil in a space; and a first support and a second support formed on the core, wherein the first support and the second support are formed on the core such that the first sub coil and the second sub coil are inserted into hollow portions of the core respectively; wherein at the center of the main coil, the first sub coil and the second sub coil are symmetric with respect to a second axis, which is perpendicular to the first axis, wherein an inner surface of the side wall contacts at least a portion of the auxiliary coil, and wherein the main coil contacts both the first sub coil and the second sub coil. - View Dependent Claims (10, 11, 12, 13, 14)
-
Specification