Electronic device
View Patent ↗An electronic device has a primary coil 10 ; a secondary coil 20 disposed to face the primary coil 10 ; a coil sealing part 50 sealing the primary coil 10 and the secondary coil 20 and being made of sealing resin; a primary-side electronic element 110 electrically connected to the primary coil 10 ; and a secondary-side electronic element 210 electrically connected to the secondary coil 20 . The primary-side electronic element 110 is provided on a primary-side extension part 60 extending from the primary coil 10 to an outside of the coil sealing part 50 , or the secondary-side electronic element 210 is provided on a secondary-side extension part 70 extending from the secondary coil 20 to an outside of the coil sealing part 50.
1. An electronic device comprising:
a primary coil;
a secondary coil disposed to face the primary coil;
a coil sealing part sealing the primary coil and the secondary coil and being made of sealing resin;
a primary-side electronic element electrically connected to the primary coil;
a secondary-side electronic element electrically connected to the secondary coil;
a primary-side extension part integrated with the primary coil and extending from the primary coil to an outside of the coil sealing part; and
a secondary-side extension part integrated with the secondary coil and extending from the secondary coil to the outside of the coil sealing part,
wherein entire footprint of the primary-side electronic element is provided on a surface of the primary-side extension part via a conductive adhesive, and entire footprint of the secondary-side electronic element is provided on a surface of the secondary-side extension part via a conductive adhesive.
2. The electronic device according to claim 1 , wherein the primary-side electronic element has a primary-side first electronic element, a primary-side connecting body provided on the primary-side first electronic element, and a primary-side second electronic element provided on the primary-side connecting body.
3. The electronic device according to claim 1 , wherein the secondary-side electronic element has a secondary-side first electronic element, a secondary-side connecting body provided on the secondary-side first electronic element, and a secondary-side second electronic element provided on the secondary-side connecting body.
4. The electronic device according to claim 1 , wherein the primary coil has a first coil and a second coil coupled to the first coil.
5. The electronic device according to claim 4 , wherein the primary coil is made from a lead frame.
6. The electronic device according to claim 1 , wherein
a first bent part is provided between the coil sealing part and the primary-side electronic element, and in the primary-side extension part.
7. The electronic device according to claim 1 , wherein
a second bent part is provided between the coil sealing part and the secondary-side electronic element, and in the secondary-side extension part.
8. The electronic device according to claim 1 ,
wherein a first bent part is provided between the coil sealing part and the primary-side electronic element, and in the primary-side extension part,
wherein a second bent part is provided between the coil sealing part and the secondary-side electronic element, and in the secondary-side extension part,
wherein a primary-side sealing part sealing the primary-side electronic element is provided,
wherein a secondary-side sealing part sealing the secondary-side electronic element is provided, and
wherein a back surface of the coil sealing part, a back surface of the primary-side sealing part, and a back surface of the secondary-side sealing part is able to abut onto a cooling body.