Wireless power transceiving module

Abstract

A wireless power transceiving module according to an embodiment of the present invention may comprise: a transmission unit; and a reception unit disposed to face the transmission unit while being spaced apart therefrom. The transmission unit may comprise: a first outer leg; a second outer leg; a central leg disposed between the first outer leg and the second outer leg; and a flat plate-shaped body part connecting one end of the first outer leg, one end of the second outer leg, and one end of the central leg. The reception unit may comprise a core disposed to face the central leg of the transmission unit. The size of the core of the transmission unit may be larger than the size of the core of the reception unit.

Description

Wireless power transmission and reception module

[0001] The present invention relates to a wireless power transmission / reception module, and more specifically, to the shape of a core included in each of a transmitter and a receiver of a wireless power transmission / reception module.

[0002] Wireless power transmission and reception technology allows electronic devices to wirelessly transmit power to or from electronic devices. It can be applied not only to battery charging of mobile devices, but also to various applications, such as powering household electronic devices, electric vehicles, and subways. For this purpose, electronic devices may include a transformer as a power supply.

[0003] A transformer can transmit energy, or power, from a transmitter to a receiver. A transformer includes a magnetic core, a primary coil, and a secondary coil, and can be transformed depending on the turns ratio of the primary coil, i.e., the input coil, and the secondary coil, i.e., the output coil. The magnetic core included in the transformer can have various shapes, such as an EER core, an EE core, an ER core, an EQ core, and a PQ core.

[0004] The technical task of the present invention is to provide a wireless power transmission / reception module capable of improving power transmission efficiency. Furthermore, the present invention provides a core shape that can improve power transmission / reception efficiency, included in the wireless power transmission / reception module.

[0005] A wireless power transmission / reception module according to an embodiment of the present invention includes a transmitter, and a receiver disposed to face and be spaced apart from the transmitter, wherein the transmitter includes a first outer leg, a second outer leg, a middle leg disposed between the first outer leg and the second outer leg, and a body portion in the form of a plate connecting one end of the first outer leg, one end of the second outer leg, and one end of the middle leg, and wherein the receiver includes a core disposed to face the middle leg of the transmitter, and the size of the core of the transmitter may be larger than the size of the core of the receiver.

[0006] In a wireless power transmission / reception module according to an embodiment of the present invention, the lengths of the first outer leg and the second outer leg of the transmitting unit may be smaller than the length of the middle leg of the transmitting unit.

[0007] In a wireless power transmission / reception module according to an embodiment of the present invention, the transmitting unit and the receiving unit may each further include a coil, and the coil may be wound horizontally around the middle of the transmitting unit and the core of the receiving unit, respectively.

[0008] In a wireless power transmission / reception module according to an embodiment of the present invention, the separation distance between the transmitting unit and the receiving unit may be within a certain range.

[0009] In a wireless power transmission / reception module according to an embodiment of the present invention, the size of the middle leg of the transmitting unit is determined based on the length of the middle leg of the transmitting unit and the width of the middle leg of the transmitting unit, the size of the core of the receiving unit is determined based on the length of the core of the receiving unit and the width of the core of the receiving unit, and the width of the middle leg of the transmitting unit may be greater than the width of the core of the receiving unit.

[0010] In a wireless power transmission / reception module according to an embodiment of the present invention, the receiving unit may include a first outer leg positioned opposite the first outer leg of the transmitting unit, a second outer leg positioned opposite the second outer leg of the transmitting unit, a middle leg positioned between the first outer leg of the receiving unit and the second outer leg of the receiving unit and corresponding to the core of the receiving unit, and a body portion in the form of a flat plate connecting one end of the first outer leg of the receiving unit, one end of the second outer leg of the receiving unit, and one end of the middle leg of the receiving unit.

[0011] In a wireless power transmission / reception module according to an embodiment of the present invention, the width of the first outer leg of the receiving unit and the second outer leg of the receiving unit may be smaller than the width of the middle leg of the receiving unit.

[0012] In a wireless power transmission / reception module according to an embodiment of the present invention, the size of the middle leg of the transmitting unit and the size of the middle leg of the receiving unit are determined based on the length and width of each middle leg, and the width of the middle leg of the transmitting unit may be larger than the width of the middle leg of the receiving unit.

[0013] According to an embodiment of the present invention, power transmission and reception efficiency can be increased when transmitting and receiving power wirelessly.

[0014] According to an embodiment of the present invention, even when the core materials of the transmitter and receiver included in the wireless power transmission and reception module are the same, the power transmission and reception efficiency can be increased by changing the shape of the core.

[0015] According to an embodiment of the present invention, even if the windings of the transmitter and receiver included in the wireless power transmission / reception module are the same, the shape of the core can be changed to increase the efficiency of power transmission / reception.

[0016] According to an embodiment of the present invention, when the size of the core of the transmitter included in the wireless power transmission / reception module is larger than the size of the core of the receiver, the power transmission / reception efficiency can be increased.

[0017] FIG. 1 is a perspective view and a front view of the core of a transmitter and receiver included in a wireless power transmission / reception module according to a first embodiment of the present invention.

[0018] FIG. 2 is a perspective view and a front view of the core of a transmitter and receiver included in a wireless power transmission / reception module according to a second embodiment of the present invention.

[0019] FIG. 3 is a perspective view and a front view of the core of the transmitter and receiver included in the wireless power transmission / reception module according to the third embodiment of the present invention.

[0020] FIG. 4 is a perspective view and a front view of the core of the transmitter and receiver included in the wireless power transmission / reception module according to the fourth embodiment of the present invention.

[0021] FIG. 5 is a perspective view and a front view of the core of the transmitter and receiver included in the wireless power transmission / reception module according to the fifth embodiment of the present invention.

[0022] Fig. 6 is a perspective view of a TV to which a wireless power transmission / reception module according to an embodiment of the present invention is applied.

[0023] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0024] However, the technical idea of ​​the present invention is not limited to some of the embodiments described, but can be implemented in various different forms, and within the scope of the technical idea of ​​the present invention, one or more of the components between the embodiments can be selectively combined or substituted for use.

[0025] In addition, terms (including technical and scientific terms) used in the embodiments of the present invention may be interpreted as having a meaning that can be generally understood by a person of ordinary skill in the technical field to which the present invention belongs, unless explicitly and specifically defined and described, and terms that are commonly used, such as terms defined in a dictionary, may be interpreted in consideration of the contextual meaning of the relevant technology.

[0026] Additionally, the terms used in the embodiments of the present invention are intended to describe the embodiments and are not intended to limit the present invention.

[0027] In this specification, the singular may also include the plural unless specifically stated otherwise in the phrase, and when it is described as “A and / or at least one (or more) of B, C”, it may include one or more of all combinations that can be combined with A, B, C.

[0028] Additionally, in describing components of embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used.

[0029] These terms are intended only to distinguish one component from another, and are not intended to limit the nature, order, or sequence of the component.

[0030] And, when a component is described as being 'connected', 'coupled' or 'connected' to another component, it may include not only cases where the component is directly connected, coupled or connected to the other component, but also cases where the component is 'connected', 'coupled' or 'connected' by another component between the component and the other component.

[0031] Additionally, when described as being formed or arranged "above or below" each component, "above" or "below" includes not only cases where the two components are in direct contact with each other, but also cases where one or more other components are formed or arranged between the two components. Furthermore, when expressed as "above" or "below", it can include the meaning of a downward direction as well as an upward direction based on one component.

[0032] In the present invention, the terms 'length', 'width', and 'thickness' may be used to describe a shape. 'Length' may also be referred to as 'horizontal'. Length may refer to a value in a first horizontal direction (e.g., x-axis direction). 'Width' may also be referred to as 'width' or 'vertical'. Width may refer to a value in a second horizontal direction (e.g., y-axis direction). 'Thickness' may also be referred to as 'height'. Thickness may refer to a value in a vertical direction (e.g., z-axis direction). 'Area' may also be referred to as 'area', and may be a value determined based on length and width. Finally, 'size' may refer to the degree of area and / or volume.

[0033] According to an embodiment of the present invention, a wireless power transmission / reception module may include a transmitter and a receiver. The transmitter and the receiver may be spaced apart from each other. The transmitter and the receiver may also be positioned facing each other, i.e., facing each other. The distance between the transmitter and the receiver may be within a predetermined range for power transmission. In one embodiment, the distance between the transmitter and the receiver may be the distance between the cores of the transmitter and the receiver.

[0034] Below, the shapes of the cores included in the transmitter and receiver according to various embodiments of the present invention are described.

[0035] Example 1

[0036] According to the first embodiment of the present invention, the shapes of the cores of the transmitter and receiver included in the wireless power transmission / reception module can both be bar types.

[0037] FIG. 1 is a perspective view and a front view of the cores of a transmitter and a receiver included in a wireless power transmission / reception module according to a first embodiment of the present invention. Specifically, (a) of FIG. 1 is a perspective view of the cores of a transmitter and a receiver included in a wireless power transmission / reception module, and (b) of FIG. 1 is a front view of the cores of a transmitter and a receiver included in a wireless power transmission / reception module.

[0038] Referring to FIG. 1, the shape of the transmitter core (110) may be a bar type. The bar type core may be a rectangular shape having a length, width, and thickness, but is not limited thereto. For example, the bar type core may be an oval shape or a rectangular shape with rounded corners.

[0039] According to an embodiment of the present invention, the shape of the receiver core (120) may also be a bar type. Like the core (110) of the transmitter, the bar type core (120) of the receiver may also have a rectangular shape having a length, width, and thickness, but is not limited thereto. For example, the bar type core may have an oval shape.

[0040] According to one embodiment, the bar-type core (110) of the transmitter and the bar-type core (120) of the receiver may have the same shape or may have similar shapes. For example, the bar-type core (110) of the transmitter may have a rectangular shape, and the bar-type core (120) of the receiver may have an oval shape. However, preferably, the shape of the bar-type core (110) of the transmitter and the shape of the bar-type core (120) of the receiver may be the same.

[0041] According to one embodiment, the center point of the bar type core (110) included in the transmitter and the center point of the bar type core (120) included in the receiver may be spaced apart in one direction (e.g., in the direction of the z-axis). The length, width, and thickness of the bar type core (110) included in the transmitter may be aligned in the same direction as the length, width, and thickness of the bar type core (120) included in the receiver.

[0042] According to one embodiment, the bar-type core (110) included in the transmitter may be larger than the bar-type core (120) included in the receiver. For example, the area of ​​the bar-type core (110) included in the transmitter may be larger than the area of ​​the bar-type core (120) included in the receiver. More specifically, the length of the bar-type core (110) included in the transmitter may be the same as the length of the bar-type core (120) included in the receiver, and the width of the bar-type core (110) included in the transmitter may be larger than the width of the bar-type core (120) included in the receiver. Alternatively, the width of the bar-type core (110) included in the transmitter may be the same as the width of the bar-type core (120) included in the receiver, and the length of the bar-type core (110) included in the transmitter may be larger than the length of the bar-type core (120) included in the receiver. Alternatively, both the length and width values ​​of the bar type core (110) included in the transmitter may be greater than the length and width values ​​of the bar type core (120) included in the receiver.

[0043] According to one embodiment, a bar-type core (110) of the transmitter and / or a bar-type core (120) of the receiver may be wound with a winding. The winding may be wound horizontally.

[0044] Second Example

[0045] According to the second embodiment of the present invention, the shape of the core of the transmitter included in the wireless power transmission / reception module may be an E type, and the shape of the core of the receiver may be a bar type.

[0046] FIG. 2 is a perspective view and a front view of the core of a transmitter and a receiver included in a wireless power transmission / reception module according to a second embodiment of the present invention. Specifically, (a) of FIG. 2 is a perspective view of the core of a transmitter and a receiver included in a wireless power transmission / reception module, and (b) of FIG. 2 is a front view of the core of a transmitter and a receiver included in a wireless power transmission / reception module.

[0047] Referring to FIG. 2, the shape of the transmitter core (210) may be an E type. The E type core may include two outer legs (212, 214), one intermediate leg (216) positioned between the two outer legs (212, 214), and a body portion (218). One end of each of the two outer legs (212, 214) and one end of the intermediate leg (216) may be coupled to the body portion (218) having a flat shape. That is, the two outer legs (212, 214) may be positioned at both ends of the body portion (218), and the intermediate leg (216) may be positioned in the center of the body portion (218). The two outer legs (212, 214) may have the same shape. The two outer legs (212, 214), the middle leg (216), and the body portion (218) may each have a rectangular shape with a length, width, and thickness, but are not limited thereto. Even if the two outer legs (212, 214), the middle leg (216), and the body portion (218) each have the same shape, the length, width, and thickness may be different from each other. The length, width, and thickness of the two outer legs (212, 214), the middle leg (216), and the body portion (218) may refer to a state in which they are aligned in the same direction, and the following description will be based on this.

[0048] According to an embodiment of the present invention, the width of the intermediate foot (216) may be greater than the width of the outer foot (212, 214). For example, the length of the intermediate foot (212, 214) may be greater than the length of the intermediate foot (216), but the width of the outer foot (212, 214) may be less than the width of the intermediate foot (216), and the width of the intermediate foot (216) may be greater than the width of the outer foot (212, 214). Alternatively, the width of the intermediate foot (212, 214) may be greater than the width of the intermediate foot (216), but the length of the outer foot (212, 214) may be less than the length of the intermediate foot (216), and in this case, the width of the intermediate foot (216) may be greater than the width of the outer foot (212, 214). In one embodiment, the thickness of the outer legs (212, 214) may be greater than or equal to the thickness of the middle legs (216).

[0049] In one embodiment, the width of the body portion (218) may be greater than the widths of the outer legs (212, 214) and the middle legs (216). Furthermore, the width of the body portion (218) may be greater than the sum of the widths of the two outer legs (212, 214) and the middle legs (216). The length of the body portion (218) may be equal to the length of the outer legs (212, 214), and the width of the body portion (218) may be greater than the sum of the widths of the two outer legs (212, 214) and the middle legs (216). Alternatively, the width value of the body portion (218) may be equal to the width value of the outer legs (212, 214), and the length value of the body portion (218) may be greater than the sum of the length values ​​of the two outer legs (212, 214) and the middle leg (218).

[0050] According to one embodiment, the shape of the core (220) included in the receiver may be a bar type. As described in the first embodiment, the bar type core (220) included in the receiver may have a rectangular shape having a length, width, and thickness, but is not limited thereto. For example, the bar type core (220) included in the receiver may have an oval shape.

[0051] According to one embodiment, the middle leg (216) of the transmitter may be arranged to face the bar-type core (220) included in the receiver. The center point of the body part (218) of the E-type core (210) included in the transmitter and the center point of the bar-type core (220) included in the receiver may be arranged to be spaced apart in one direction (e.g., in the direction of the z-axis). The length, width and thickness of the two outer legs (212, 214), the middle leg (216) and the body part (218) of the E-type core (210) included in the transmitter may be aligned in the same direction as the length, width and thickness of the bar-type core (220) included in the receiver, respectively.

[0052] According to one embodiment, the size of the core (210) included in the transmitter may be larger than the size of the core (220) included in the receiver. For example, the width of the midfoot (216) included in the transmitter may be larger than the width of the bar-type core (220) included in the receiver. The width of the body (218) included in the transmitter may be larger than the width of the bar-type core (220) included in the receiver. However, in this case, the length of the midfoot (216) included in the transmitter may be smaller than the length of the bar-type core (220) included in the receiver. The length of the body (218) included in the transmitter may be smaller than the length of the bar-type core (220) included in the receiver. As another example, the length of the midfoot (216) included in the transmitter may be larger than the length of the bar-type core (220) included in the receiver. The length value of the body portion (218) included in the transmitter may be greater than the width value of the bar-type core (220) included in the receiver. However, in this case, the width value of the middle leg (216) included in the transmitter may be smaller than the width value of the bar-type core (220) included in the receiver. The width value of the body portion (218) included in the transmitter may be smaller than the width value of the bar-type core (220) included in the receiver.

[0053] According to one embodiment, a portion of the E-type core (210) of the transmitter (e.g., the midfoot (216)) and / or the bar-type core (220) of the receiver may be wound with a winding. The winding may be wound horizontally.

[0054] Third Example

[0055] According to a third embodiment of the present invention, the shape of the core of the transmitter included in the wireless power transmission / reception module may be a shape that combines a bar type and a flat type, and the shape of the core of the receiver may be a bar type.

[0056] FIG. 3 is a perspective view and a front view of the core of a transmitter and a receiver included in a wireless power transmission / reception module according to a third embodiment of the present invention. Specifically, FIG. 3 (a) is a perspective view of the core of a transmitter and a receiver included in a wireless power transmission / reception module, and FIG. 3 (b) is a front view of the core of a transmitter and a receiver included in a wireless power transmission / reception module.

[0057] Referring to FIG. 3, the shape of the transmitter core (310) may be a combined shape of a bar type and a flat type. Each of the bar type core (312) and the flat type core (314) may have a rectangular shape having a length, width, and thickness, but may not be limited thereto. The bar type core (312) may be arranged on one surface of the flat type core (314). The bar type core (312) may be arranged in the center of one surface of the flat type core (314). That is, the center point of the bar type core (312) and the center point of the flat type core (314) may be arranged in one direction (for example, the direction of the z-axis). The length, width, and thickness of the bar type core (312) and the flat type core (314) included in the transmitter may be aligned in the same direction as the length, width, and thickness of the bar type core (320) included in the receiver.

[0058] According to one embodiment, the bar-type core (312) of the transmitter may have a smaller width than the flat-type core (314). For example, both the length and width of the bar-type core (312) may be smaller than the length and width of the flat-type core (314). However, the thickness of the bar-type core (312) may be larger than the thickness of the flat-type core (314).

[0059] Referring to FIG. 3, the shape of the core (320) included in the receiver may be a bar type. As described in the first embodiment, the bar type core (320) included in the receiver may have a rectangular shape having a length, width, and thickness, but is not limited thereto. For example, the bar type core (320) included in the receiver may have an oval shape.

[0060] According to one embodiment, the size of the core (310) included in the transmitter may be larger than the size of the core (320) included in the receiver. For example, the width value of the bar-type core (312) of the transmitter may be larger than the width value of the bar-type core (320) included in the receiver. Alternatively, the width value of the flat-type core (314) of the transmitter may be larger than the width value of the bar-type core (320) included in the receiver.

[0061] According to one embodiment, a portion of the bar-type core (312) and the flat-type core (314) of the transmitter (e.g., the bar-type core (312)) and / or the bar-type core (320) of the receiver may be wound with a winding. The winding may be wound horizontally.

[0062] Example 4

[0063] According to a fourth embodiment of the present invention, a wireless power transmission / reception module may include a transmission unit and a reception unit in which the core shapes are a combination of a bar type and a flat type.

[0064] FIG. 4 is a perspective view and a front view schematically illustrating a wireless power transmission / reception module according to a fourth embodiment of the present invention. Specifically, FIG. 4 (a) is a perspective view of the cores of a transmitter and a receiver included in the wireless power transmission / reception module, and FIG. 4 (b) is a front view of the cores of a transmitter and a receiver included in the wireless power transmission / reception module.

[0065] Referring to FIG. 4, the shape of the transmitter core (410) may be a combined shape of a bar type and a flat type. Each of the bar type core (412) and the flat type core (414) of the transmitter may have a rectangular shape having a length, width, and thickness, but is not limited thereto. The bar type core (412) may be arranged on one surface of the flat type core (414). The bar type core (412) may be arranged at the center of one surface of the flat type core (414). That is, the center point of the bar type core (412) and the center point of the flat type core (414) may be arranged in one direction (for example, the direction of the z-axis).

[0066] According to one embodiment, the bar-type core (412) of the transmitter may have a smaller width than the flat-type core (414). For example, both the length and width of the bar-type core (412) may be smaller than the length and width of the flat-type core (414). However, the thickness of the bar-type core (412) may be larger than the thickness of the flat-type core (414).

[0067] Referring to FIG. 4, the shape of the receiver core (420) may be a combined shape of a bar type and a flat type. Each of the bar type core (422) and the flat type core (424) of the receiver may have a rectangular shape having a length, width, and thickness, but is not limited thereto. The bar type core (422) may be arranged on one side of the flat type core (424) and may be arranged in the center. That is, the center point of the bar type core (422) and the center point of the flat type core (424) may be arranged in one direction (for example, the direction of the z-axis).

[0068] According to one embodiment, the bar-type core (422) of the receiver may have a smaller width than the flat-type core (424). For example, both the length and width of the bar-type core (422) may be smaller than the length and width of the flat-type core (424). However, the thickness of the bar-type core (422) may be larger than the thickness of the flat-type core (424).

[0069] According to one embodiment, the size of the core (410) included in the transmitter may be larger than the size of the core (420) included in the receiver. For example, the width of the bar-type core (412) of the transmitter may be larger than the width of the bar-type core (422) included in the receiver. Alternatively, the width of the bar-type core (412) of the transmitter may be larger than the width of the flat-type core (424) included in the receiver. Alternatively, the width of the flat-type core (414) of the transmitter may be larger than the width of the bar-type core (422) included in the receiver. Alternatively, the width of the flat-type core (414) of the transmitter may be larger than the width of the flat-type core (424) included in the receiver.

[0070] According to one embodiment, a portion of the bar type core (412) and the flat type core (414) of the transmitter (e.g., the bar type core (412)) and / or a portion of the bar type core (422) and the flat type core (424) of the receiver (e.g., the bar type core (412)) may be wound with a winding. The winding may be wound horizontally.

[0071] Example 5

[0072] According to the fifth embodiment of the present invention, the shapes of the cores of the transmitter and receiver included in the wireless power transmission / reception module can both be of the E type.

[0073] FIG. 5 is a perspective view and a front view of the core of a transmitter and a receiver included in a wireless power transmission / reception module according to a fifth embodiment of the present invention. Specifically, FIG. 5 (a) is a perspective view of the core of a transmitter and a receiver included in a wireless power transmission / reception module, and FIG. 5 (b) is a front view of the core of a transmitter and a receiver included in a wireless power transmission / reception module.

[0074] Referring to FIG. 5, the shape of the transmitter core (510) may be an E type. The E type core of the transmitter may include two outer legs (512, 514), one intermediate leg (516) positioned between the two outer legs (512, 514), and a body portion (518). One end of each of the two outer legs (512, 514) and one end of the intermediate leg (516) may be coupled to the body portion (518) having a flat shape. That is, the two outer legs (512, 514) may be positioned at both ends of the body portion (518), and the intermediate leg (516) may be positioned at the center of the body portion (518). The two outer legs (512, 514) may have the same shape. The two outer legs (512, 514), the middle leg (516), and the body portion (518) may each have a rectangular shape with a length, width, and thickness, but are not limited thereto. Even if the two outer legs (512, 514), the middle leg (516), and the body portion (518) each have the same shape, the length, width, and thickness may be different from each other. The length, width, and thickness of the two outer legs (512, 514), the middle leg (516), and the body portion (518) may be aligned in the same direction, and the following description will be based on this.

[0075] According to an embodiment of the present invention, the width of the middle leg (516) of the transmitter may be greater than the width of the outer leg (512, 514). For example, the length of the outer leg (512, 514) may be greater than the length of the middle leg (516), but the width of the outer leg (512, 514) may be less than the width of the middle leg (516), and the width of the middle leg (516) may be greater than the width of the outer leg (512, 514). Alternatively, the width of the outer leg (512, 514) may be greater than the width of the middle leg (516), but the length of the outer leg (512, 514) may be less than the length of the middle leg (516), and in this case, the width of the middle leg (516) may be greater than the width of the outer leg (512, 514). In one embodiment, the thickness of the outer legs (512, 514) may be greater than or equal to the thickness of the middle legs (516).

[0076] In one embodiment, the width of the body portion (518) may be greater than the widths of the outer legs (512, 514) and the middle legs (516). Furthermore, the width of the body portion (518) may be greater than the sum of the widths of the two outer legs (512, 514) and the width of the middle legs (516). The length of the body portion (518) may be equal to the length of the outer legs (512, 514), and the width of the body portion (518) may be greater than the sum of the widths of the two outer legs (512, 514) and the middle legs (516). Alternatively, the width value of the body portion (518) may be equal to the width value of the outer legs (512, 514), and the length value of the body portion (518) may be greater than the sum of the length values ​​of the two outer legs (512, 514) and the middle leg (518).

[0077] Referring to FIG. 5, the shape of the receiver core (520) may also be of the E type. As described above, the E type core may include two outer legs (522, 524), a middle leg (526) positioned between the two outer legs (522, 524), and a body portion (528). One end of each of the two outer legs (522, 524) and one end of the middle leg (526) may be coupled to the body portion (528) having a flat shape. In other words, the two outer legs (522, 524) may be positioned at both ends of the body portion (528), and the middle leg (526) may be positioned in the center of the body portion (528). The two outer legs (522, 524) may have the same shape. The two outer legs (522, 524), the middle leg (526), ​​and the body portion (528) may each have a rectangular shape with a length, width, and thickness, but are not limited thereto. Even if the two outer legs (522, 524), the middle leg (526), ​​and the body portion (528) each have the same shape, the length, width, and thickness may be different from each other. The length, width, and thickness of the two outer legs (522, 524), the middle leg (526), ​​and the body portion (528) may be aligned in the same direction, and the following description will be based on this.

[0078] According to an embodiment of the present invention, the width of the middle leg (526) of the receiver may be greater than the width of the outer leg (522, 524) of the receiver. For example, the length of the outer leg (522, 524) may be greater than the length of the middle leg (526), ​​but the width of the outer leg (522, 524) may be less than the width of the middle leg (526), ​​and the width of the middle leg (526) may be greater than the width of the outer leg (522, 524). Alternatively, the width of the outer leg (522, 524) may be greater than the width of the middle leg (526), ​​but the length of the outer leg (522, 524) may be less than the length of the middle leg (526), ​​and in this case, the width of the middle leg (526) may be greater than the width of the outer leg (522, 524). In one embodiment, the thickness of the outer legs (522, 524) of the receiver may be greater than or equal to the thickness of the middle legs (526) of the receiver.

[0079] In one embodiment, the width of the body portion (528) of the receiver may be greater than the widths of the outer legs (522, 524) and the middle legs (526) of the receiver. Furthermore, the width of the body portion (528) may be greater than the sum of the widths of the two outer legs (522, 524) and the middle legs (526). The length of the body portion (528) may be equal to the length of the outer legs (522, 524), and the width of the body portion (528) may be greater than the sum of the widths of the two outer legs (522, 524) and the middle legs (526). Alternatively, the width value of the body portion (528) may be equal to the width value of the outer legs (522, 524), and the length value of the body portion (528) may be greater than the sum of the length values ​​of the two outer legs (522, 524) and the middle leg (528).

[0080] According to one embodiment, the size of the core (510) included in the transmitter may be larger than the size of the core (520) included in the receiver. Specifically, the width of the intermediate portion (516) included in the transmitter may be larger than the width of the intermediate portion (526) included in the receiver. The width of the body portion (518) included in the transmitter may be larger than the width of the intermediate portion (526) included in the receiver. The width of the intermediate portion (516) included in the transmitter may be larger than the width of the body portion (528) included in the receiver. The width of the body portion (518) included in the transmitter may be larger than the width of the body portion (528) included in the receiver. However, in this case, the length of the intermediate portion (516) included in the transmitter may be smaller than the length of the intermediate portion (526) included in the receiver. The value of the length of the body part (518) included in the transmitter may be smaller than the value of the length of the intermediate leg (526) included in the receiver. As another example, the value of the length of the intermediate leg (516) included in the transmitter may be larger than the value of the length of the intermediate leg (526) included in the receiver. The value of the length of the body part (518) included in the transmitter may be larger than the value of the length of the intermediate leg (526) included in the receiver. The value of the length of the intermediate leg (516) included in the transmitter may be larger than the value of the length of the body part (528) included in the receiver. The value of the length of the body part (518) included in the transmitter may be larger than the value of the length of the body part (528) included in the receiver. However, in this case, the value of the width of the intermediate leg (516) included in the transmitter may be smaller than the value of the width of the intermediate leg (526) included in the receiver.

[0081] According to one embodiment, a portion of the E-type core (510) of the transmitter (e.g., the midfoot (516)) and / or a portion of the E-type core (520) of the receiver (e.g., the midfoot (526)) may be wound with a winding. The winding may be wound horizontally.

[0082] [Table 1] below presents the simulation results for the coupling coefficient between cores included in the transmitter and receiver according to various embodiments of the present invention. The coupling coefficient is a numerical value indicating the degree to which multiple cores are coupled. The higher the value, the greater the transmitted energy. In other words, the higher the coupling coefficient, the higher the energy transfer efficiency.

[0083] Example 1 Example 2 Example 3 Example 4 Example 5 Transmitter Bar type E type Bar type + flat type Bar type + flat type E type Receiver Bar type Bar type Bar type Bar type + flat type E type Coupling coefficient 0.0081850.0071760.0074780.0084970.008697

[0084] [Table 1] shows the results of simulations in which all other conditions (e.g., core composition material, winding method, etc.) were the same, and only the shapes of the cores included in the transmitter and receiver were different according to the first to fifth embodiments. According to the simulation results, the coupling coefficient was the highest in the shape of the core according to the fifth embodiment, followed by the shape of the core according to the fourth embodiment, the shape of the core according to the first embodiment, the shape of the core according to the third embodiment, and the shape of the core according to the second embodiment, in that order.

[0085] Fig. 6 is a perspective view of a TV to which a wireless power transmission / reception module according to an embodiment of the present invention is applied.

[0086] For example, FIG. 6 shows a wireless power transmission / reception module according to a fifth embodiment of the present invention applied to a TV (600), but a wireless power transmission / reception module according to another embodiment may be applied to a TV. In addition, a wireless power transmission / reception module according to an embodiment of the present invention may be applied to other electronic devices in addition to a TV. In FIG. 6, the TV (600) may be composed of a main body (610) and a peripheral device (620). The main body (610) may include a display module, a receiving unit (520) of the wireless power transmission / reception module, etc., and the peripheral device (620) may include a speaker, a transmitting unit (510) of the wireless power transmission / reception module, etc., but is not limited thereto. In FIG. 6, the main body (610) of the TV may wirelessly receive power from the peripheral device (620).

[0087] Referring to FIG. 6, the receiving unit (520) of the wireless power transmission / reception module may be placed at the bottom of the TV body (610), and the transmitting unit (510) of the wireless power transmission / reception module may be placed at the top of the peripheral device (620). The receiving unit (520) of the wireless power transmission / reception module and the transmitting unit (510) of the wireless power transmission / reception module may be placed to face each other. According to one embodiment, the core (or part of the core) of the receiving unit (520) of the wireless power transmission / reception module and the transmitting unit (510) of the wireless power transmission / reception module may have a coil wound around it.

[0088] Although the above description focuses on examples, these are merely examples and do not limit the present invention. Those skilled in the art will appreciate that various modifications and applications not exemplified above are possible without departing from the essential characteristics of the present invention. For example, each component specifically shown in the examples can be modified and implemented. In addition, differences related to such modifications and applications should be construed as being included within the scope of the present invention defined in the appended claims.

Claims

1. Transmitter; and It includes a receiving unit arranged to face and be spaced apart from the transmitting unit, The above transmitter, First foreign clan, Second foreign clan, A middle limb positioned between the first outer limb and the second outer limb, and It includes a core including a body portion in the form of a flat plate connecting one end of the first outer leg, one end of the second outer leg, and one end of the middle leg, The above receiver, Including a core arranged opposite to the midfoot of the above transmitter, A wireless power transmission and reception module, wherein the size of the core of the above-mentioned transmitter is larger than the size of the core of the above-mentioned receiver.

2. In paragraph 1, A wireless power transmission and reception module, wherein the lengths of the first outer leg and the second outer leg are smaller than the length of the middle leg.

3. In paragraph 1, The above transmitter and the above receiver each further include a coil, A wireless power transmission and reception module, wherein the coil is wound horizontally on the midfoot of the transmitter and the core of the receiver.

4. In paragraph 1, A wireless power transmission and reception module, wherein the distance between the transmitter and the receiver is within a certain range.

5. In paragraph 1, The size of the midfoot of the above transmitter is determined based on the length of the midfoot of the above transmitter and the width of the midfoot of the above transmitter, The size of the core of the above receiver is determined based on the length of the core of the above receiver and the width of the core of the above receiver, A wireless power transmission and reception module, wherein the width of the middle part of the above-mentioned transmitter is greater than the width of the core of the above-mentioned receiver.

6. In paragraph 1, The above receiver, A first outer group arranged opposite to the first outer group of the above-mentioned transmitter, A second outer group arranged opposite to the second outer group of the above-mentioned transmitter, A middle leg positioned between the first outer leg of the receiver and the second outer leg of the receiver, and corresponding to the core of the receiver, and A wireless power transmission and reception module including a flat body portion connecting one end of the first outer leg of the receiving unit, one end of the second outer leg of the receiving unit, and one end of the middle leg of the receiving unit.

7. In paragraph 6, A wireless power transmission and reception module, wherein the width of the first outer leg of the receiving unit and the second outer leg of the receiving unit are smaller than the width of the middle leg of the receiving unit.

8. In paragraph 6, The size of the midfoot of the above transmitter and the size of the midfoot of the above receiver are determined based on the length of each midfoot and the width of each midfoot, A wireless power transmission and reception module, wherein the width of the middle leg of the above transmitter is greater than the width of the middle leg of the above receiver.

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