BACKGROUND

1. Field of Disclosure

The present disclosure relates to a wireless power module for noise reduction and an electronic device including the wireless power module.

2. Description of the Related Art

Electromagnetic wave standards for a wireless charging electronic device are different for each manufacturer and each nation, and thus, the electromagnetic compatibility (EMC) testing is conducted under different conditions. Since it is required to solve the problem of high noise occurring in a specific frequency with respect to the standards for the wireless charger, the number of components for the noise reduction and the structural change of a printed circuit board (PCB) are increasing. However, fundamentally, there is a problem in that the influence of the noise generated between the coils of the wireless charger is large.

SUMMARY

The present disclosure provides a wireless power module with reduced noise.

The present disclosure provides an electronic device including the wireless power module.

Technical objectives to be achieved in various embodiments of the present disclosure should not be limited to the technical objectives mentioned above, and other technical objectives that are not mentioned here will be considered by those skilled in the art from various embodiments described hereinafter in the present disclosure. Embodiments of the inventive concept provide a wireless power module including a coil layer including a coil including a curved area, a wiring board disposed on the coil layer, and a plurality of conductive lines disposed on the wiring board. At least a portion of the conductive lines crosses the curved area within a predetermined angle range when viewed in a plane.

The predetermined angle range includes about 90 degrees.

The predetermined angle range includes a maximum value obtained by adding a predetermined value to the angle of about 90 degrees and a minimum value obtained by subtracting the predetermined value from the angle of about 90 degrees.

The predetermined value is about 5 degrees.

The conductive lines include an outer loop line disposed on the wiring board.

The conductive lines further include an inner loop line disposed on the wiring board and spaced apart from the outer loop line, a first branch line of which one end is connected to the outer loop line and the other end is short circuited, and a second branch line of which one end is connected to the inner loop line and the other end is short circuited.

The first branch line and the second branch line cross the curved area within the predetermined angle range when viewed in a plane.

The first branch line and the second branch line are alternately branched respectively from the outer loop line and the inner loop line.

The conductive lines include a base branch line branched from the outer loop line toward inside the wiring board, a first branch line of which one end is connected to the outer loop line and the other end is short circuited, and a second branch line of which one end is connected to the base branch line and the other end is short circuited, and the first branch line and the second branch line cross the curved area within the predetermined angle range when viewed in a plane.

The conductive lines further include an inner loop line disposed on the wiring board and spaced apart from the outer loop line and a connection line branched from the outer loop line toward inside the wiring board and protruded from the inner loop line by a predetermined length, and the connection line connects the outer loop line and the inner loop line.

The conductive lines further include a first branch line of which one end is connected to the outer loop line and the other end is short circuited and a second branch line of which one end is connected to the inner loop line and the other end is short circuited, and the first branch line and the second branch line cross the curved area within the predetermined angle range when viewed in a plane.

The conductive lines further include a plurality of inner base annular lines disposed on the wiring board and spaced apart from the outer loop line, a connection line branched from the outer loop line toward inside the wiring board and protruded from the inner base annular lines by a predetermined length, and a base branch line branched from the outer loop line to pass through between the inner base annular lines, and the connection line connects the outer loop line and the inner base annular lines.

The conductive lines further include a first branch line of which one end is connected to the outer loop line and the other end is short circuited and a second branch line of which one end is connected to one of the inner base annular lines and the other end is short circuited, and the first branch line and the second branch line cross the curved area within the predetermined angle range when viewed in a plane.

Embodiments of the inventive concept provide an electronic device including a body, a cover disposed to correspond to the body, and a wireless power module disposed between the body and the cover. The wireless power module includes a coil layer including a coil electrically connected to the body and including a curved area, a wiring board disposed on the coil layer, and a plurality of conductive lines disposed on the wiring board. At least a portion of the conductive lines crosses the curved area within a predetermined angle range when viewed in a plane.

The above-described embodiments of the present disclosure are just parts of preferred embodiments of the present disclosure, and various embodiments reflecting the technical features of this disclosure can be derived and understood by those skilled in the art based on the following detailed descriptions of the present disclosure.

According to various embodiments of the present disclosure, the following effects are obtained.

According to various embodiments of the present disclosure, the wireless power module with reduced noise and the electronic device including the wireless power module are provided.

In addition, it is possible to reduce heat generated during the wireless power transmission and reception.

Further, the electronic device in which the coil layer and the conductive layer are integrally stacked with the substrate is provided.

Further, a ferrite wall structure is applied, and thus, noise is reduced.

Effects that can be obtained from the various embodiments of the present disclosure should not be limited to the effects described above, and other effects that are not mentioned here can be clearly derived and understood by those skilled in the art based on the detailed descriptions of the present disclosure.

