Wire rod, wireless charging system and electronic equipment

Abstract

The embodiment of the utility model discloses a wire rod, wireless charging system and electronic equipment, the wire rod comprises a rectangular conductor, an insulating layer, an outer protective layer and two electroplated layers, the insulating layer is wrapped outside the rectangular conductor to prevent current leakage, the outer protective layer is wrapped outside the insulating layer to prevent the wire rod from being damaged by the external environment, and the two electroplated layers are arranged on the outer side of the outer protective layer. The service life of the wire is prolonged, the two electroplated layers are arranged between the two opposite side faces of the rectangular conductor and the insulating layer respectively, a magnetic field can be shielded through the electroplated layers, reorientation of magnetic flux is facilitated, and the coupling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment, and in particular to a wire, a wireless charging system and an electronic device. Background Art

[0002] With the popularity of smartphones, wearable devices, and other portable electronic products, wireless charging technology has gradually become an important option for users seeking a convenient charging experience. In wireless charging systems, coils are one of the key components, responsible for transmitting electrical energy in a contactless manner. As wireless charging technology advances, the requirements for the wire used in coils are also constantly increasing. Early wireless charging coils were mostly wound using ordinary enameled wire. However, with the development of technology, the choice of wire and technology have continued to evolve to accommodate higher power transmission, better efficiency, and smaller space requirements. Utility Model Content

[0003] In view of this, an object of the present invention is to provide a wire, a wireless charging system and an electronic device, which can effectively improve the charging efficiency.

[0004] In a first aspect, an embodiment of the present invention provides a wire rod, comprising:

[0005] rectangular conductors;

[0006] An insulating layer wrapped around the outside of the rectangular conductor;

[0007] An outer sheath, wrapped around the outside of the insulation layer;

[0008] Two electroplating layers are respectively arranged between two opposite side surfaces of the rectangular conductor and the insulating layer.

[0009] Furthermore, an electroplating layer is provided between the bottom surface of the rectangular conductor and the bottom surface of the insulating layer, and the bottom ends of the electroplating layers on both sides of the rectangular conductor are respectively connected to the two ends of the bottom electroplating layer.

[0010] Furthermore, the electroplated layer is an electroplated nickel alloy layer.

[0011] Furthermore, the thickness of the electroplating layer is 0.5 μm to 1.5 μm.

[0012] Furthermore, the rectangular conductor is a copper wire.

[0013] Furthermore, the insulating layer is an insulating polyurethane layer.

[0014] Furthermore, the outer protective layer is a polyamide nylon layer.

[0015] In a second aspect, an embodiment of the present invention further provides a wireless charging system, the wireless charging system comprising:

[0016] The transmitting end comprises a transmitting coil and a first magnetic conductor connected with each other.

[0017] The receiving end comprises a receiving coil, a second magnetic conductor and a shielding layer connected in sequence.

[0018] The transmitting coil and the receiving coil are formed by the wire rod as described in the first aspect.

[0019] Further, the side opposite to the receiving coil of the transmitting coil is not provided with the electroplated layer.

[0020] In a third aspect, the utility model embodiment further provides an electronic device, and the electronic device comprises the wireless charging system of the second aspect.

[0021] The utility model embodiment provides a wire rod, a wireless charging system and an electronic device, wherein the wire rod comprises a rectangular conductor, an insulation layer, an outer protective layer and two electroplated layers, the insulation layer is wrapped and arranged on the outer side of the rectangular conductor to prevent current leakage and ensure safety, the outer protective layer is wrapped and arranged on the outer side of the insulation layer to prevent external environment from causing damage to the wire rod and prolong the service life, and the two electroplated layers are arranged between the insulation layer and the opposite two sides of the rectangular conductor respectively, the electroplated layer can shield the magnetic field and help the magnetic flux to be redirected, and the coupling efficiency is increased. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above and other objects, features and advantages of the utility model will become more apparent from the following description of the utility model embodiments with reference to the accompanying drawings, in which:

[0023] Figure 1 Fig. 1 is a schematic view of the cross section of the wire rod of the utility model embodiment;

[0024] Figure 2 Fig. 2 is a schematic view of the cross section of the wire rod of another utility model embodiment;

[0025] Figure 3 Fig. 3 is a schematic view of the overall structure of the wireless charging system of the utility model embodiment; Figure 1

[0026] Figure 4 Fig. 4 is a schematic view of the overall structure of the wireless charging system of the utility model embodiment; Figure 2

[0027] BRIEF DESCRIPTION OF DRAWINGS

[0028] 1-rectangular conductor; 2-insulation layer; 3-outer protective layer; 4-electroplated layer; 10-transmitting end; 11-transmitting coil; 12-first magnetic conductor; 20-receiving end; 21-receiving coil; 22-second magnetic conductor; 23-shielding layer. DETAILED DESCRIPTION

[0029] ​​The present application is described below based on the following embodiments, but the present application is not limited to these embodiments. In the detailed description of the present application below, certain specific details are described in detail. Those skilled in the art can fully understand the present application without the description of these details. To avoid obscuring the essence of the present application, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0030] Furthermore, persons of ordinary skill in the art will appreciate that the figures provided herein are for illustration purposes only and are not necessarily drawn to scale.

[0031] Unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," and the like should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0032] Unless the context clearly requires otherwise, words like “include”, “comprising” and the like throughout this application should be interpreted as including rather than exclusive or exhaustive; that is, as meaning “including but not limited to”.

[0033] In the description of this application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance. In addition, in the description of this application, unless otherwise specified, "plurality" means two or more.

[0034] First embodiment:

[0035] Figure 1 Schematic diagram of the cross section of the wire rod of this embodiment. Figure 1 The wire rod of this embodiment includes a rectangular conductor 1, an insulating layer 2, an outer sheath 3, and two electroplating layers 4. The insulating layer 2 is wrapped around the outside of the rectangular conductor 1, and the outer sheath 3 is wrapped around the outside of the insulating layer 2. The two electroplating layers 4 are respectively disposed between two opposite sides of the rectangular conductor 1 and the insulating layer 2.

[0036] The rectangular conductor 1 is provided in a shape structure with a rectangular cross section, which provides clear edges and flat surfaces, and helps to accurately control the plating position of the plating layer 4, and further reasonably control the magnetic field shielding effect, and guarantee the final charging efficiency. In addition, the flat surface of the rectangular conductor 1 can provide a better base to improve the adhesion between the plating layer 4 and the rectangular conductor 1. The flat surface also helps to achieve a more uniform plating layer thickness and improve wire quality.

[0037] The plating layer 4 is provided as a plating nickel alloy layer. The nickel alloy material has good electrical conductivity, and the plating nickel alloy layer provided on the outside of the rectangular conductor 1 can optimize the structure of the rectangular conductor 1 and reduce the overall AC resistance. The plating nickel alloy layer can also shield the magnetic field to some extent and reduce external interference. The plating nickel alloy layer can also efficiently conduct magnetic lines of force. The plating nickel alloy layer provided on both sides of the rectangular conductor 1 helps to redirect the magnetic flux of the coil made of the wire, improving the charging efficiency. In addition, the thickness of the plating layer 4 is 0.5-1.5 μm, which helps to ensure the uniformity of the plating layer 4.

[0038] In another alternative embodiment, referring to Figure 2 The wire of the present embodiment is further provided with a plating layer 4 between the bottom surface of the rectangular conductor 1 and the bottom surface of the insulating layer 2, and the bottom ends of the plating layers 4 on both sides of the rectangular conductor 1 are respectively connected to the two sides of the bottom surface plating layer 4 to form a complete and continuous plating layer 4. The plating layer 4 of the present embodiment is a plating nickel alloy layer, and the thickness is 0.5-1.5 μm, to further improve the coupling efficiency of the wire. The thickness of the plating layer 4 is 0.5-1.5 μm, which helps to control the cost, ensure the uniformity of the plating layer 4, and improve the bonding force between the plating layer 4 and the rectangular conductor 1.

[0039] In the above embodiments, the rectangular conductor 1 is made of copper wire as the main conductor. Copper has excellent electrical conductivity and can effectively transmit current. The insulating layer 2 is provided as an insulating polyurethane layer and is wrapped around the outside of the plating layer 4 and the rectangular conductor 1. The insulating polyurethane layer can prevent electrical contact between different conductive parts, avoid short circuit or leakage phenomenon, and ensure the safe operation of the wire during conduction. The outer protective layer 3 is provided as a polyamide nylon layer and is wrapped around the outside of the insulating layer 2. The polyamide nylon layer has good wear resistance and toughness, which can provide good protection for the internal structure and prolong the service life of the overall structure.

[0040] Alternatively, the insulating layer 2 can also be provided as a polyvinyl chloride layer, a polytetrafluoroethylene layer, or a silicone rubber layer, etc.; and the outer protective layer 3 can also be provided as a polyethylene layer, a polyurethane layer, or a polypropylene layer, etc.

[0041] Referring to Figure 1 and Figure 2, the cross section of the wire is rectangular, which helps to improve the filling factor when making the coil, making the coil more compact and accommodating more turns, thus improving the inductance and reducing the resistance. At the same time, the rectangular wire has a larger surface area, which helps to improve the heat dissipation performance of the coil. In addition, it also provides better mechanical stability and reduces the proximity effect, thereby reducing the AC resistance and improving the efficiency of the coil, suitable for high-power and applications requiring precise magnetic field control.

[0042] The embodiment provides a wire, which reduces the resistance of the wire and improves the inductance by arranging a plated nickel alloy layer on both sides of the rectangular conductor. At the same time, the wire of the embodiment adopts a rectangular conductor with a rectangular cross section, which helps to accurately control the plating position of the plated nickel alloy layer, improves the overall performance and reliability of the wire.

[0043] Second embodiment:

[0044] Referring to Figure 3 and Figure 4 , the second embodiment of the present application provides a wireless charging system, which includes a transmitting end 10 and a receiving end 20. Referring to Figure 4 , the transmitting end 10 includes a transmitting coil 11 and a first magnetic conductor 12 connected to each other. Referring to Figure 3 , the receiving end 20 includes a receiving coil 21, a second magnetic conductor 22 and a shielding layer 23 connected in sequence.

[0045] Referring to Figure 3 and Figure 4 , the transmitting coil 11 and the receiving coil 21 are oppositely arranged to ensure that the distance between the two coils is minimized to align the magnetic field and improve the transmission efficiency. The transmitting coil 11 and the receiving coil 21 of the embodiment are both made of the wire of the first embodiment, and the transmitting coil 11 and the receiving coil 21 are provided with a plated layer 4. The plated layer 4 is made of a plated nickel alloy layer. The plated nickel alloy layer has high magnetic permeability, which can guide the magnetic field to flow inside it, thereby guiding more magnetic flux from the transmitting coil 11 into the receiving coil 21, enhancing the interaction strength between the electromagnetic field of the transmitting coil 11 and the receiving coil 21, and improving the transmission efficiency of the wireless charging system.

[0046] Further, the opposite side of the transmitting coil 11 and the receiving coil 21 is not provided with a plated layer 4, so as to ensure that the magnetic field can be freely transmitted from the transmitting coil 11 to the receiving coil 21, improve the interaction strength between the transmitting coil 11 and the receiving coil 21, and improve the coupling efficiency.

[0047] Optionally, the transmitting coil 11 and the receiving coil 21 can be made of a wire provided with a plated layer 4 only on both sides, or can be made of a wire provided with a plated layer 4 on both sides and the bottom surface.

[0048] Referring to Figure 1 and Figure 2 , the wire in the first embodiment is rectangular in overall cross-section, and the transmitting coil 11 and the receiving coil 21 in the present embodiment are formed by the wire, which can realize compact structure and accommodate more turns, thereby helping to increase inductance and reduce resistance. In addition, the transmitting coil 11 and the receiving coil 21 in the present embodiment also have good heat dissipation performance, which can improve mechanical stability and electromagnetic performance, and realize precise control of the magnetic field.

[0049] Referring to Figure 4 , the first magnetic conductor 12 is arranged on the side of the transmitting coil 11 away from the receiving coil 21 to enhance the magnetic field and reduce electromagnetic radiation. Referring to Figure 3 , the second magnetic conductor 22 is arranged on the side of the receiving coil 21 away from the transmitting coil 11 to concentrate the magnetic field and improve the receiving efficiency, and to protect the battery and circuit at the receiving end from electromagnetic interference. The other side of the second magnetic conductor 22 is also provided with a shielding layer 23. The shielding layer 23 is arranged as a metal shielding layer such as copper foil or aluminum foil, which can shield and absorb unnecessary magnetic field, thereby improving the performance and safety of the system integration.

[0050] The transmitting coil and the receiving coil in the wireless charging system of the present embodiment are internally provided with a plated nickel alloy layer, which effectively improves the magnetic coupling efficiency, thereby improving the charging efficiency. In addition, the plated nickel alloy layer is not arranged on the opposite side of the transmitting coil and the receiving coil, which helps to concentrate the magnetic field, avoids unnecessary magnetic field shielding and loss, and further improves the reliability and charging efficiency of the wireless charging system.

[0051] Third embodiment:

[0052] The present embodiment provides an electronic device comprising the wireless charging system in the above embodiments, which can effectively improve the overall charging efficiency and enhance the overall performance and reliability of the device.

[0053] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A wire rod, characterized in that: The wire material comprises: Rectangular conductor (1); an insulating layer (2) wrapped around the outside of the rectangular conductor (1); An outer protective layer (3) is wrapped around the outer side of the insulating layer (2); Two electroplating layers (4) are respectively arranged between two opposite side surfaces of the rectangular conductor (1) and the insulating layer (2).

2. The wire according to claim 1, characterized in that An electroplating layer (4) is further provided between the bottom surface of the rectangular conductor (1) and the bottom surface of the insulating layer (2), and the bottom ends of the electroplating layer (4) on both sides of the rectangular conductor (1) are respectively connected to the two ends of the electroplating layer (4) on the bottom surface.

3. The wire according to claim 1 or 2, characterized in that The electroplated layer (4) is an electroplated nickel alloy layer.

4. The wire according to claim 1 or 2, characterized in that The thickness of the electroplating layer (4) is 0.5 μm to 1.5 μm.

5. The wire according to claim 1, characterized in that The rectangular conductor (1) is a copper wire.

6. The wire according to claim 1, characterized in that The insulating layer (2) is an insulating polyurethane layer.

7. The wire according to claim 1, characterized in that The outer protective layer (3) is a polyamide nylon layer.

8. A wireless charging system, characterized in that: The wireless charging system includes: A transmitting end (10) comprising a transmitting coil (11) and a first magnetic conductor (12) connected to each other; A receiving end (20) includes a receiving coil (21), a second magnetic conductor (22), and a shielding layer (23) connected in sequence; Wherein, the transmitting coil (11) and the receiving coil (21) are respectively formed by the wire according to any one of claims 1 to 7.

9. The wireless charging system according to claim 8, wherein: No electroplating layer (4) is provided on the side of the transmitting coil (11) opposite to the receiving coil (21).

10. An electronic device, characterized in that: The electronic device includes the wireless charging system according to claim 8 or 9.

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