Coil module

Abstract

The present disclosure provides a coil module. The coil module includes a first coil mechanism. The first coil mechanism includes a first base and a first coil assembly, wherein the first coil assembly is disposed on the first base, and the first coil mechanism is configured to correspond to a second coil mechanism.

Description

Technical Field

[0001] This invention relates to a coil module. More specifically, this invention relates to a coil module for wireless charging. Background Technology

[0002] Wireless charging is an AC induction technology that utilizes the principle of electromagnetic wave induction. It typically involves generating an electromagnetic field in a coil within the wireless charging device, which in turn induces an AC signal between the coil in the wireless charging device and the receiving coil in the electronic device, thus enabling charging. Currently, various electronic devices with wireless charging capabilities often have diverse appearances; therefore, designing coil modules with excellent charging performance has become an important research topic. Summary of the Invention

[0003] The purpose of this invention is to provide a coil module with good charging efficiency.

[0004] This disclosure provides a coil module including a first coil mechanism. The first coil mechanism includes a first base and a first coil assembly, wherein the first coil assembly is disposed on the first base. The first coil mechanism is used to correspond to a second coil mechanism.

[0005] In some embodiments of this disclosure, the second coil mechanism further includes: a main shaft; a second base including a base plate and a side wall, wherein the side wall extends from the edge of the base plate; and a third coil assembly disposed on the second base, wherein the third coil assembly and the base plate are arranged along the main shaft, and in the direction of the main shaft, there is a first distance between the center of a third body of the third coil assembly and the base plate. The aforementioned first base further includes: a housing having a bottom; and a first winding support having a long axis. A first body of the first coil assembly is wound around the first winding support, the first winding support and the bottom being arranged along the long axis, wherein in the direction of the long axis, there is a second distance between the center of the first body and the bottom. When the first coil mechanism is disposed on the second coil mechanism and is in a first state relative to the second coil mechanism, the main shaft is parallel to the long axis. The first distance and the second distance are different. The first distance is smaller than the second distance.

[0006] In some embodiments of this disclosure, the minimum distance between the aforementioned first body and the bottom is a third distance, which is less than the first distance. The maximum distance between the first body and the bottom is a fourth distance, which is greater than the first distance. When the first coil mechanism is disposed on the second coil mechanism and is in a second state relative to the second coil mechanism, the first main axis is not parallel to the long axis. When viewed along the direction perpendicular to the main axis, the center of the first body overlaps with the third body.

[0007] In some embodiments of this disclosure, the aforementioned first coil mechanism further includes a power storage component, which, when viewed along the long axis, at least partially overlaps with the first winding support. When viewed along the direction perpendicular to the long axis, the power storage component and the first winding support do not overlap. The first coil mechanism may further include a magnetic shielding component disposed between the power storage component and the first winding support.

[0008] In some embodiments of this disclosure, the aforementioned second coil mechanism further includes a positioning component for restricting the first coil mechanism to be placed on the second coil mechanism in any orientation within a rechargeable range. Within the rechargeable range, the angle between the main shaft and the major axis is not equal to ninety degrees. The aforementioned bottom may have an arc-shaped structure.

[0009] In some embodiments of this disclosure, the aforementioned first coil mechanism further includes a first adhesive component disposed on the first coil assembly. The first adhesive component is made of a heat-resistant material. The first adhesive component can withstand temperatures above 100 degrees Celsius. The resistivity of the first adhesive component is greater than 640 Ωm. Only one surface of the first adhesive component has adhesive force. The first base further includes a first winding support, which includes: a long axis; a winding body extending along the long axis, the winding body comprising a non-metallic material; a hollow structure formed in the winding body; a first baffle for restricting the first coil assembly and located on one side of the first winding support; and a second baffle for restricting the first coil assembly and located on the other side of the first winding support. The extension direction of the first baffle and the extension direction of the second baffle are not parallel to the long axis. The first base further includes: a first magnetically conductive component having a plate-like structure and disposed in the hollow structure; a second magnetically conductive component having a plate-like structure and disposed in the hollow structure; and a third magnetically conductive component having a plate-like structure and disposed in the hollow structure. The first and second magnetically conductive components are arranged along the long axis. The first and third magnetically conductive components are arranged along a direction perpendicular to the long axis. A first surface of the first magnetically conductive component is parallel to a second surface of the second magnetically conductive component. Both the first and second surfaces overlap with an imaginary plane. In the long axis direction, the size of the first coil assembly is smaller than the size of the first bonding component. The first coil mechanism also includes a second bonding component disposed on the first, second, and third magnetically conductive components. The second bonding component is made of heat-resistant material. The second bonding component can withstand temperatures above 100 degrees Celsius. The resistivity of the second bonding component is greater than 640 Ωm. Only one surface of the second bonding component has adhesive force. The second bonding component contacts the first magnetically conductive component. The second bonding component contacts the second magnetically conductive component. The second bonding component contacts the third magnetically conductive component. An outer surface of the second bonding component faces the first winding support. There is a gap between the outer surface and the first winding support. The first coil mechanism also includes a bonding component disposed in the gap. The thermal conductivity of the bonding component is greater than 20 W / mk. Along its long axis, the total size of the first, second, and third magnetically conductive components is larger than the size of the first winding assembly. Along its long axis, the size of the first bonding component is smaller than the size of the second bonding component. The first coil mechanism further includes: a first bonding member contacting the first barrier wall and the second bonding component; a second bonding member contacting the first barrier wall and the second bonding component, wherein the first, second, and third magnetically conductive components are located between the first and second bonding components; a third bonding member contacting the second barrier wall and the second bonding component; and a fourth bonding member contacting the second barrier wall and the second bonding component, wherein the first, second, and third magnetically conductive components are located between the third and fourth bonding components.In a state of use, the first coil mechanism and the second coil mechanism are arranged along the long axis.

[0010] In some embodiments of this disclosure, the aforementioned first base has an elongated structure. The first base is made of a magnetically conductive material. The first base includes a first section, a second section, and an intermediate section, wherein the first section is connected to the second section via the intermediate section. A first coil assembly is disposed on the first base, and the first coil assembly includes a first coil assembly and a second coil assembly. The first coil assembly is wound in a first direction around a first section of the first base, and the second coil assembly is wound in a second direction around a second section of the first base. The first direction is different from the second direction. The first coil assembly is opposite to the second direction. The first coil assembly and the second coil assembly are electrically connected in series. The first coil mechanism further includes a power storage assembly disposed on the first base. The power storage assembly and the intermediate section are arranged along a main axis. The first section is located between the power storage assembly and at least a portion of the first coil assembly. At least a portion of the first coil assembly is located between the first section and the power storage assembly. The second section is located between the power storage assembly and at least a portion of the second coil assembly. At least a portion of the second coil assembly is located between the second section and the power storage assembly. When viewed along the main axis, the first segment and the second segment are located on opposite sides of the main axis. The first segment has an arc structure. The second segment has an arc structure. The first coil mechanism also includes a magnetic shielding component disposed between the energy storage component and the first base. The magnetic shielding component is disposed between the energy storage component and the first coil component. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a coil module according to an embodiment of the present invention.

[0012] Figure 2 This is a schematic diagram of the first coil mechanism in one embodiment of the present invention.

[0013] Figure 3 This is an exploded view of the second coil mechanism in one embodiment of the present invention.

[0014] Figure 4 This is a schematic diagram of a first coil mechanism disposed on a second coil mechanism in a first state, according to one embodiment of the present invention.

[0015] Figure 5 This is a schematic diagram of a first coil mechanism disposed on a second coil mechanism in a second state, according to one embodiment of the present invention.

[0016] Figure 6 This is a schematic diagram of a coil module according to another embodiment of the present invention.

[0017] Figure 7 This is a schematic diagram of a coil module according to another embodiment of the present invention.

[0018] Figure 8 This is a schematic diagram of the first coil mechanism in another embodiment of the present invention.

[0019] Figure 9 This is a cross-sectional view of the first coil mechanism in another embodiment of the present invention.

[0020] Figure 10 This is a schematic diagram of the second coil mechanism in another embodiment of the present invention.

[0021] Figure 11 This is an exploded view of the first coil mechanism in another embodiment of the present invention.

[0022] Figure 12 This is a schematic diagram of a first base and a first coil assembly in another embodiment of the present invention.

[0023] Figure 13 This is a schematic diagram of a first base and a first coil assembly in another embodiment of the present invention.

[0024] Figure 14 This is a schematic diagram of the first coil mechanism in another embodiment of the present invention.

[0025] The attached figures are labeled as follows:

[0026] 20-10: First coil mechanism

[0027] 20-1100: Outer shell

[0028] 20-1110: Bottom

[0029] 20-1200: First Plinth

[0030] 20-1201: First Section

[0031] 20-1202: Second Section

[0032] 20-1203: Middle Section

[0033] 20-1204: Spindle

[0034] 20-1210: Magnetic Conductive Components

[0035] 20-1211: First Magnetic Conductive Component

[0036] 20-1211A: First Surface

[0037] 20-1212: Second Magnetic Conductive Component

[0038] 20-1212A: Second Surface

[0039] 20-1213: Third Magnetic Conductive Component

[0040] 20-1220: First winding bracket

[0041] 20-1221: Long wheelbase

[0042] 20-1222: Winding body

[0043] 20-1223: First Retaining Wall

[0044] 20-1224: Second Retaining Wall

[0045] 20-1225: Hollow Structure

[0046] 20-1300: First coil assembly

[0047] 20-1301: First coil assembly

[0048] 20-1302: Second Coil Assembly

[0049] 20-1310:First body

[0050] 20-1400: Magnetic shielding assembly

[0051] 20-1500: Energy Storage Components

[0052] 20-1610: First adhesive component

[0053] 20-1620: Second adhesive component

[0054] 20-1710: First adhesive component

[0055] 20-1720: Second adhesive component

[0056] 20-1730: Third adhesive component

[0057] 20-1740: Fourth adhesive component

[0058] 20-20: Second coil mechanism

[0059] 20-21: Spindle

[0060] 20-2100: Outer casing

[0061] 20-2110: Perforation

[0062] 20-2200: Second base

[0063] 20-2210: Second winding bracket

[0064] 20-2211: Depression

[0065] 20-2212: Base Plate

[0066] 20-2213: Sidewall

[0067] 20-2214: Positioning Components

[0068] 20-2220: Magnetic Conductive Components

[0069] 20-2300: Third coil assembly

[0070] 20-2310: The Third Body

[0071] 20-2400: Circuit Board

[0072] 20-2410: Connecting terminals

[0073] 20-2500: Adhesive components

[0074] 20-2610: First adhesive component

[0075] 20-2620: Second adhesive component

[0076] 20-2710: First adhesive component

[0077] 20-2720: Second adhesive component

[0078] 20-2730: Third adhesive component

[0079] 20-2740: Fourth adhesive component

[0080] 20-D1: First Distance

[0081] 20-D2: Second distance

[0082] 20-D3: Third Distance

[0083] 20-D4: Fourth Distance

[0084] 20-M: Coil Module

[0085] 20-P: Imaginary plane Detailed Implementation

[0086] The coil module of the present invention is described below. However, it will be readily apparent that the present invention provides many suitable inventive concepts and can be implemented in a wide range of specific contexts. The specific embodiments disclosed are merely illustrative of the use of the invention in particular ways and are not intended to limit the scope of the invention.

[0087] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. It is understood that these terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the background or context of the relevant art and the present invention, and should not be interpreted in an idealized or overly formal manner, unless specifically defined herein.

[0088] Please see Figure 1 According to one embodiment of the present invention, the coil module 20-M includes a first coil mechanism 20-10 and a second coil mechanism 20-20. The first coil mechanism 20-10 may be, for example, a smartphone with wireless charging function, a smartwatch, a smart bracelet, Bluetooth headphones, a charging case, etc., while the second coil mechanism 20-20 may be, for example, a charging stand.

[0089] Both the first coil mechanism 20-10 and the second coil mechanism 20-20 may include one or more coils. For example, the first coil mechanism 20-10 may include a receiving coil (first coil assembly) and / or a communication coil (second coil assembly, such as a near-field communication (NFC) coil), while the second coil mechanism 20-20 may include one or more transmitting coils (third coil assembly) to match receiving coils of different sizes and inductances. When the first coil mechanism 20-10 is close to or positioned on the second coil mechanism 20-20, the first coil assembly in the first coil mechanism 20-10 and the third coil assembly in the second coil mechanism 20-20 can generate inductive coupling. In this way, the second coil mechanism 20-20 can wirelessly supply power to the first coil mechanism 20-10, and the first coil mechanism 20-10 can store the obtained power in its own energy storage component (e.g., a rechargeable battery).

[0090] like Figure 2 As shown, the first coil mechanism 20-10 mainly includes a housing 20-1100, a first base 20-1200, a first coil assembly 20-1300, a magnetic shielding assembly 20-1400, and an energy storage assembly 20-1500.

[0091] The outer casing 20-1100 has a hollow structure, and the aforementioned first base 20-1200, first coil assembly 20-1300, magnetic shielding assembly 20-1400 and energy storage assembly 20-1500 are all housed in the accommodating space of the hollow structure.

[0092] The first base 20-1200 includes a magnetically conductive component 20-1210 and a first winding bracket 20-1220. The first winding bracket 20-1220 surrounds the magnetically conductive component 20-1210, and the first coil assembly 20-1300 is wound around the first winding bracket 20-1220. Therefore, the first coil assembly 20-1300 surrounds the magnetically conductive component 20-1210 and the first winding bracket 20-1220. In some embodiments, the first base 20-120 may omit the magnetically conductive component 20-1210 and only include the first winding bracket 20-1220 made of a non-conductive material (e.g., plastic).

[0093] A magnetic shielding assembly 20-1400 is disposed between the energy storage assembly 20-1500 and the first winding support 20-1220 to reduce electromagnetic interference (EMI) between the energy storage assembly 20-1500 and the first coil assembly 20-1300. For example, the magnetic shielding assembly 20-1400 may be made of iron, aluminum, a combination thereof, or other suitable metals.

[0094] It should be noted that, apart from the main part (first body 20-1310) wound on the first winding bracket 20-1220, the leads (not shown) at both ends of the first coil assembly 20-1300 can pass through the magnetic shielding assembly 20-1400 to be electrically connected to the energy storage assembly 20-1500.

[0095] Figure 3 This is an exploded view of the second coil mechanism 20-20 in one embodiment of the present invention. Figure 3 As shown, the second coil mechanism 20-20 mainly includes a housing 20-2100, a second base 20-2200, a third coil assembly 20-2300, a circuit board 20-2400, and an adhesive assembly 20-2500.

[0096] The second base 20-2200 includes a second winding bracket 20-2210 and a magnetically conductive assembly 20-2220. The second winding bracket 20-2210 can be combined with the outer shell 20-2100 as the inner frame of the second coil mechanism 20-20, and has a recess 20-2211 for accommodating the first coil mechanism 20-10. When the second winding bracket 20-2210 is combined with the outer shell 20-2100, the opening of the recess 20-2211 faces away from the outer shell 20-2100, and a gap can be formed between the second winding bracket 20-2210 and the outer shell 20-2100 (e.g., ...). Figure 4 (As shown). The magnetic conductive components 20-2220, the third coil assembly 20-2300, and the circuit board 20-2400 can be accommodated in this gap.

[0097] The third coil assembly 20-2300 is wound around the second winding bracket 20-2210, and the magnetically conductive assembly 20-2220 surrounds the aforementioned third coil assembly 20-2300. In this embodiment, the second winding bracket 20-2210 has a base plate 20-2212 and a side wall 20-2213, wherein the third coil assembly 20-2300 and the base plate 20-2212 are arranged along a main axis 20-21 of the second coil mechanism 20-20, while the side wall 20-2213 is connected to the base plate 20-2212 and extends from the edge of the base plate 20-2212.

[0098] The main part of the third coil assembly 20-2300 wound around the second winding bracket 20-2210 is the third body 20-2310, and the leads at both ends of its coil can extend downward and connect to the circuit board 20-2400. The circuit board 20-2400 can be fixed to the base plate 20-2212 of the second winding bracket 20-2210 by the adhesive assembly 20-2500.

[0099] like Figure 1 and Figure 3 As shown, in this embodiment, the circuit board 20-2400 may also be provided with a connection terminal 20-2410, and a through hole 20-2110 may be formed on the housing 20-2100 of the second coil mechanism 20-20 to connect the gap to the external environment. When the second winding bracket 20-2210 is combined with the housing 20-2100, and the circuit board 20-2400 is fixed to the base plate 20-2212 of the second winding bracket 20-2210, the aforementioned connection terminal 20-2410 may be aligned with the through hole 20-2110 to be exposed from the through hole 20-2110. Thus, the user can insert an external plug into the connection terminal 20-2410 through the through hole 20-2110 to supply power or transmit signals. For example, the aforementioned connection terminals 20-2410 may be Universal Serial Bus (USB) terminals (such as standard USB, mini USB, micro USB or USB TYPE-C, etc.), Lightning terminals or AC power connectors, but are not limited to these.

[0100] When a user wishes to charge the first coil mechanism 20-10 using the second coil mechanism 20-20, the first coil mechanism 20-10 can be placed in the recess 20-2211 of the second coil mechanism 20-20. For example... Figure 4As shown, the first coil mechanism 20-10 placed in the recess 20-2211 may be in a first state relative to the second coil mechanism 20-20. At this time, the major axis 20-1221 of the first winding support 20-1220 of the first coil mechanism 20-10 will be parallel to the main axis 20-21 of the second coil mechanism 20-20.

[0101] Along the main axis 20-21 of the second coil mechanism 20-20, a first distance 20-D1 is formed between the center of the third body 20-2310 of the third coil assembly 20-2300 and the base plate 20-2212. The outer shell 20-1100 of the first coil mechanism 20-10 has a bottom 20-1110, and the first winding bracket 20-1220 and the bottom 20-1110 are arranged along the major axis 20-1221. Along the major axis 20-1221, a second distance 20-D2 is formed between the center of the first body 20-1310 of the first coil assembly 20-1300 and the bottom 20-1110. The first distance 20-D1 will be different from the second distance 20-D2. In this embodiment, the first distance 20-D1 is smaller than the second distance 20-D2.

[0102] Please see Figure 5 The first coil mechanism 20-10 placed in the recess 20-2211 may be in a second state relative to the second coil mechanism 20-20. At this time, the major axis 20-1221 of the first winding support 20-1220 of the first coil mechanism 20-10 and the main axis 20-21 of the second coil mechanism 20-20 are not parallel.

[0103] Along the major axis 20-1221, the minimum distance between the first body 20-1310 and the bottom 20-1110 of the first coil assembly 20-1300 is the third distance 20-D3, and the maximum distance between the first body 20-1310 and the bottom 20-1110 is the fourth distance 20-D4. The third distance 20-D3 should be less than the first distance 20-D1, and the fourth distance 20-D4 should be greater than the first distance 20-D1. When viewed along the direction perpendicular to the major axis 20-21, the center of the first body 20-1310 will overlap with the third body 20-2310. In this way, wireless charging efficiency can be maintained regardless of the angle at which the first coil mechanism 20-10 is positioned relative to the first coil mechanism 20-10.

[0104] like Figure 4 and Figure 5As shown, in this embodiment, a positioning component 20-2214 may be provided in the recess 20-2211 of the second coil mechanism 20-20 to restrict the first coil mechanism 20-10 from being disposed in any posture within the recess 20-2211 within a rechargeable range, thereby preventing the first coil mechanism 20-10, which is not long enough, from slipping to the bottom of the recess 20-2211 and causing a decrease in charging efficiency. For example, in this embodiment, the positioning component 20-2214 is an annular protrusion protruding from the inner wall of the recess 20-2211, and the aforementioned rechargeable range may be set such that the included angle between the main shaft 20-21 and the major shaft 20-1221 is not equal to ninety degrees.

[0105] Furthermore, in this embodiment, when viewed along the long axis 20-1221, the energy storage component 20-1500 overlaps with the first winding bracket 20-1220, but when viewed along the direction perpendicular to the long axis 20-1221, the energy storage component 20-1500 does not overlap with the first winding bracket 20-1220. This reduces electromagnetic interference between the energy storage component 20-1500 and the first coil assembly 20-1300. In this embodiment, the bottom 20-1110 of the first coil mechanism 20-10 has an arc-shaped structure to prevent scratches on the second coil mechanism 20-20 when the first coil mechanism 20-10 and the second coil mechanism 20-20 come into contact.

[0106] Please see Figure 6 In some embodiments, the second winding support 20-2210 may have multiple recesses 20-2211, and the second coil mechanism 20-20 may surround these recesses 20-2211. In this way, multiple first coil mechanisms 20-10 can be placed into each recess 20-2211 simultaneously to charge them at the same time.

[0107] Please see Figure 7 In another embodiment of the present invention, the coil module 20-M includes a first coil mechanism 20-10 and a second coil mechanism 20-20. The first coil mechanism 20-10 can be installed in an electronic device with wireless charging function, such as a smartphone, smartwatch, smart bracelet, Bluetooth headset, charging case, etc., while the second coil mechanism 20-20 can be installed, for example, in a charging dock. The first coil mechanism 20-10 can be moved closer to the second coil mechanism 20-20 along its long axis 20-1221 to generate inductive coupling between the first coil mechanism 20-10 and the second coil mechanism 20-20.

[0108] Please see Figure 8 and Figure 9In this embodiment, the first coil mechanism 20-10 mainly includes a first base 20-1200, a first coil assembly 20-1300, at least a first adhesive assembly 20-1610, at least a second adhesive assembly 20-1620, a first adhesive member 20-1710, a second adhesive member 20-1720, a third adhesive member 20-1730, and a fourth adhesive member 20-1740.

[0109] The first base 20-1200 includes a plurality of magnetically conductive components 20-1210 and a first winding support 20-1220. The first winding support 20-1220 may include a winding body 20-1222, a first retaining wall 20-1223, and a second retaining wall 20-1224. The winding body 20-1222 extends along the long axis 20-1221 of the first winding support 20-1220, and forms a hollow structure 20-1225 therein. In this embodiment, the winding body 20-1222 may include a non-metallic material (e.g., plastic).

[0110] The first retaining wall 20-1223 and the second retaining wall 20-1224 connect to the winding body 20-1222, are located on opposite sides of the winding body 20-1222, and protrude from the winding body 20-1222. The first coil assembly 20-1300 is wound on the winding body 20-1222 and is located between the first retaining wall 20-1223 and the second retaining wall 20-1224. Since the first retaining wall 20-1223 and the second retaining wall 20-1224 protrude from the winding body 20-1222, the range of the first coil assembly 20-1300 can be limited, and the first coil assembly 20-1300 can be prevented from slipping off the first winding support 20-1220.

[0111] In this embodiment, the extending directions of the first retaining wall 20-1223 and the second retaining wall 20-1224 should be parallel to the winding direction of the first coil assembly 20-1300. In other words, in this embodiment, the extending directions of the first retaining wall 20-1223 and the second retaining wall 20-1224 will be perpendicular to the major axis 20-1221 of the first winding support 20-1220. In some embodiments, the extending directions of the first retaining wall 20-1223 and the second retaining wall 20-1224 may not be parallel to or perpendicular to the major axis 20-1221 of the first winding support 20-1220.

[0112] The first adhesive component 20-1610 may cover the first coil assembly 20-1300, and may be, for example, an adhesive, heat-resistant insulating tape. The first coil assembly 20-1300 prevents the heat generated by the first coil assembly 20-1300 during operation of the coil module 20-M from affecting other electronic components in the electronic device. It should be noted that the first adhesive component 20-1610 has adhesive force only on the surface facing the first coil assembly 20-1300, thus preventing other electronic components from adhering to the outer surface of the first coil assembly 20-1300 during installation.

[0113] Furthermore, in this embodiment, the length of the first adhesive component 20-1610 along its major axis 20-1221 is greater than the layout range of the first coil component 20-1300, thus completely shielding the first coil component 20-1300. In this embodiment, a portion of the first adhesive component 20-1610 is adhered to the first winding bracket 20-1220.

[0114] In some embodiments, the first adhesive component 20-1610 may include a suitable heat-resistant material, such as polyimide (PI). In some embodiments, the first adhesive component 20-1610 can withstand temperatures above 100 degrees Celsius. In some embodiments, the resistivity of the first adhesive component 20-1610 is greater than 640 Ωm.

[0115] Magnetic conductive components 20-1210 are disposed within the hollow structure 20-1225. For example, the magnetic conductive components 20-1210 may include a first magnetic conductive component 20-1211, a second magnetic conductive component 20-1212, and a third magnetic conductive component 20-1213. Each of these components has a plate-like structure. The first and second magnetic conductive components 20-1211 and 20-1212 are arranged along the major axis 20-1221, and the first and third magnetic conductive components 20-1211 and 20-1212 are arranged along a direction perpendicular to the major axis 20-1221. The magnetic conductive components 20-1210 can be fixed to each other by welding or adhesive. It should be noted that the first magnetically conductive component 20-1211 and the second magnetically conductive component 20-1212 are approximately the same size and located on the same horizontal plane. In other words, the first surface 20-1211A of the first magnetically conductive component 20-1211 facing the inner wall of the hollow structure 20-1225 is approximately parallel / coplanar with the second surface 20-1212A of the second magnetically conductive component 20-1212 facing the inner wall of the hollow structure 20-1225. The first surface 20-1211A and the second surface 20-1212A will simultaneously overlap with an imaginary plane 20-P.

[0116] Since the aforementioned magnetically conductive component 20-1210 contains a relatively fragile material, in order to maintain the integrity of the magnetically conductive component 20-1210, the second adhesive component 20-1620 can cover the magnetically conductive component 20-1210. In this embodiment, the second adhesive component 20-1620 directly contacts the first magnetically conductive component 20-1211, the second magnetically conductive component 20-1212, and the third magnetically conductive component 20-1213, and the length of the second adhesive component 20-1620 in the direction of its major axis 20-1221 is greater than the total length of the magnetically conductive component 20-1210, thus completely covering all the magnetically conductive components 20-1210.

[0117] Similar to the first adhesive component 20-1610, the second adhesive component 20-1620 may be an adhesive, heat-resistant insulating tape, and has adhesive force only on the surface of the magnetically conductive component 20-1210.

[0118] In some embodiments, the second adhesive component 20-1620 may include a suitable heat-resistant material, such as polyimide. In some embodiments, the second adhesive component 20-1620 can withstand temperatures above 100 degrees Celsius. In some embodiments, the resistivity of the second adhesive component 20-1620 is greater than 640 Ωm.

[0119] After the magnetically conductive component 20-1210, which is covered by the second adhesive component 20-1620, is placed in the hollow structure 20-1225, the user can utilize the first adhesive component 20-1710 and the second adhesive component...

[0120] 20-1720, the third adhesive component 20-1730 and the fourth adhesive component 20-1740 fix the magnetic conductive component 20-1210 to the first winding bracket 20-1220.

[0121] Specifically, the first adhesive component 20-1710, the second adhesive component 20-1720, the third adhesive component 20-1730, and the fourth adhesive component 20-1740 can be adhesive. For example... Figure 9As shown, the first adhesive member 20-1710 and the third adhesive member 20-1730 can contact the first retaining wall 20-1223 and the second adhesive component 20-1620, and the second adhesive member 20-1720 and the fourth adhesive member 20-1740 can contact the second retaining wall 20-1224 and the second adhesive component 20-1620. Since the first adhesive component 20-1710 and the second adhesive component 20-1720 are arranged along the long axis 20-1221, and the third adhesive component 20-1730 and the fourth adhesive component 20-1740 are also arranged along the long axis 20-1221, and the first winding bracket 20-1220 is located between the first adhesive component 20-1710 and the second adhesive component 20-1720 and between the third adhesive component 20-1730 and the fourth adhesive component 20-1740, the magnetically conductive component 20-1210 can be securely fixed to the first winding bracket 20-1220.

[0122] In some embodiments, when the magnetically conductive component 20-1210, covered by the second adhesive component 20-1620, is disposed within the hollow structure 20-1225, a gap exists between the outer surface 20-1621 of the second adhesive component 20-1620 facing the first winding bracket 20-1220 and the first winding bracket 20-1220 for ease of assembly. In this case, the user can fill the aforementioned gap with an adhesive component (not shown) to more securely hold the magnetically conductive component 20-1210 in place. The aforementioned adhesive component may, for example, be a thermally conductive insulating adhesive with a thermal conductivity greater than 20 W / mk.

[0123] In addition, such as Figure 9 As shown, in this embodiment, the total length of the magnetically conductive component 20-1210 in the direction of the major axis 20-1221 is greater than the length of the first winding bracket 20-1220. Therefore, the length of the second adhesive component 20-1620 in the direction of the major axis 20-1221 is also greater than the length of the first adhesive component 20-1610.

[0124] like Figure 10 As shown, the second coil mechanism 20-20 in this embodiment mainly includes a second base 20-2200, a third coil assembly 20-2300, at least a first adhesive assembly 20-2610, at least a second adhesive assembly 20-2620, a first adhesive member 20-2710, a second adhesive member 20-2720, a third adhesive member 20-2730, and a fourth adhesive member 20-2740.

[0125] The structure and configuration of the aforementioned second base 20-2200, third coil assembly 20-2300, first adhesive assembly 20-2610, second adhesive assembly 20-2620, first adhesive member 20-2710, second adhesive member 20-2720, third adhesive member 20-2730 and fourth adhesive member 20-2740 are the same as those of the first base 20-1200, first coil assembly 20-1300, first adhesive assembly 20-1610, second adhesive assembly 20-1620, first adhesive member 20-1710, second adhesive member 20-1720, third adhesive member 20-1730 and fourth adhesive member 20-1740 of the first coil mechanism 20-10, and therefore will not be described again here.

[0126] Please see Figure 11 In another embodiment of the present invention, the first coil mechanism 20-10 of the coil module 20-M can be installed in an electronic device with wireless charging function, such as a smartphone, smartwatch, smart bracelet, Bluetooth headset, charging box, etc., which mainly includes a first base 20-1200, a first coil assembly 20-1300, a magnetic shielding assembly 20-1400 and a power storage assembly 20-1500.

[0127] The first base 20-1200 includes an elongated strip structure and may be made of a magnetically conductive material. For example... Figure 12 As shown, during assembly, the first coil assembly 20-1300 can be wound around the first base 20-1200. Specifically, the first base 20-1200 can be divided into a first segment 20-1201, a second segment 20-1202, and an intermediate segment 20-1203, wherein the intermediate segment 20-1203 is located between the first segment 20-1201 and the second segment 20-1202 and connects the two.

[0128] The first coil assembly 20-1300 can be wound around the first segment 20-1201 of the first base 20-1200 in a first direction to form a first coil assembly 20-1301. For example, when viewed from the right side of the first base 20-1200 in the figure, the first direction can be clockwise.

[0129] When the bonding and winding process reaches the middle section 20-1203, the winding can be stopped, and the coil can be pulled to the second section 20-1202. The coil is then wound in a second direction around the second section 20-1202 of the first base 20-1200, thereby forming a second coil assembly 20-1302. The first direction is opposite to the second direction; in other words, when viewed from the right side of the first base 20-1200 in the figure, the second direction is counterclockwise.

[0130] like Figure 13As shown, after the first coil assembly 20-1300 is wound around the first base 20-1200, the user can bend the first base 20-1200 to deform it into a U-shaped appearance. The first segment 20-1201, which has the first coil assembly 20-1301, includes an arc structure on one side of the U-shaped appearance, while the second segment 20-1202, which has the second coil assembly 20-1302, includes an arc structure on the other side of the U-shaped appearance. In other words, the first segment 20-1201 and the second segment 20-1202 are located on opposite sides of the main axis 20-1204 of the U-shaped appearance.

[0131] After the first coil assembly 20-1300 is wound around the first base 20-1200, the leads at its ends can be connected to the energy storage assembly 20-1500. For example... Figure 11 and Figure 14 As shown, the energy storage component 20-1500 and the intermediate section 20-1203 can be arranged along the main axis 20-1204, so that the energy storage component 20-1500 is surrounded by a U-shaped appearance. The magnetic shielding component 20-1400 can be disposed between the energy storage component 20-1500 and the first base 20-1200, and between the energy storage component 20-1500 and the first coil assembly 20-1300, to reduce electromagnetic interference between the energy storage component 20-1500 and the first coil assembly 20-1300. For example, the magnetic shielding component 20-1400 can be made of iron, aluminum, a combination thereof, or other suitable metals.

[0132] like Figure 11 and Figure 14 As shown, because the first coil assembly 20-1301 is wound around the first segment 20-1201, the first segment 20-1201 will be located between a portion of the first coil assembly 20-1301 and the energy storage assembly 20-1500, and a portion of the first coil assembly 20-1301 will be located between the first segment 20-1201 and the energy storage assembly 20-1500. Similarly, because the second coil assembly 20-1302 is wound around the second segment 20-1202, the second segment 20-1202 will be located between a portion of the second coil assembly 20-1302 and the energy storage assembly 20-1500, and a portion of the second coil assembly 20-1302 will be located between the second segment 20-1202 and the energy storage assembly 20-1500. In this embodiment, the first coil assembly 20-1301 and the second coil assembly 20-1302 do not wrap around the entire first segment 20-1201 and the second segment 20-1202, so parts of the first segment 20-1201 and the second segment 20-1202 are exposed.

[0133] While the embodiments and advantages of the present invention have been disclosed above, it should be understood that those skilled in the art can make modifications, substitutions, and refinements without departing from the spirit and scope of the invention. Furthermore, the scope of protection of the present invention is not limited to the processes, machines, manufacturing methods, material compositions, apparatuses, methods, and steps described in the specific embodiments of the specification. Any processes, machines, manufacturing methods, material compositions, apparatuses, methods, and steps currently or in the future that can be developed from the disclosure of this invention can be used according to the present invention, as long as they can perform substantially the same function or obtain substantially the same results in the embodiments described herein. Therefore, the scope of protection of the present invention includes the aforementioned processes, machines, manufacturing methods, material compositions, apparatuses, methods, and steps. In addition, each claim constitutes an individual embodiment, and the scope of protection of the present invention also includes combinations of the various claims and embodiments.

[0134] While the present invention has been disclosed above with reference to several preferred embodiments, it is not intended to limit the invention. Those skilled in the art will be able to make modifications and refinements without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims. Furthermore, each claim constitutes an independent embodiment, and combinations of various claims and embodiments are all within the scope of the present invention.

Claims

1. A coil module, characterized in that, include: A first coil mechanism, comprising: The first base; and A first coil assembly is disposed on the first base, wherein the first coil mechanism corresponds to a second coil mechanism, wherein the second coil mechanism further includes: One main axis; A second base includes a base plate and a side wall, wherein the side wall extends from the edge of the base plate; A third coil assembly is disposed on the second base, wherein the third coil assembly and the base plate are arranged along the main axis, and in the direction of the main axis, there is a first distance between the center of a third body of the third coil assembly and the base plate; and A positioning component is provided to restrict the first coil mechanism to be placed on the second coil mechanism in any posture within a rechargeable range; The first base also includes: An outer casing having a bottom; and A first winding bracket having a long axis, a first body of the first coil assembly wound around the first winding bracket, the first winding bracket and the bottom being arranged along the long axis, wherein a second distance exists between the center of the first body and the bottom in the direction of the long axis; When the first coil mechanism is disposed on the second coil mechanism and is in a first state relative to the second coil mechanism, the main shaft is parallel to the long axis; The first distance and the second distance are different; The first distance is smaller than the second distance; Within this rechargeable range, the angle between the main shaft and the long axis is not equal to ninety degrees; The bottom has a rounded, arc-shaped structure.

2. The coil module as claimed in claim 1, characterized in that, The minimum distance between the first body and the bottom is a third distance, which is smaller than the first distance; The maximum distance between the first body and the bottom is a fourth distance, which is greater than the first distance; When the first coil mechanism is disposed on the second coil mechanism and is in a second state relative to the second coil mechanism, the main shaft is not parallel to the long axis; When viewed along a direction perpendicular to the main axis, the center of the first body overlaps with the third body.

3. The coil module as claimed in claim 1, characterized in that, The first coil mechanism also includes an energy storage component that, when viewed along the long axis, at least partially overlaps with the first winding support. When viewed along a direction perpendicular to the long axis, the energy storage component does not overlap with the first winding bracket; The first coil mechanism also includes a magnetic shielding component disposed between the energy storage component and the first winding bracket.

4. The coil module as claimed in claim 1, characterized in that, The first coil mechanism further includes a first adhesive component disposed on the first coil component; The first adhesive component is made of a heat-resistant material; The first adhesive component can withstand temperatures above 100 degrees Celsius; The resistivity of the first adhesive component is greater than 640 Ωm; The first adhesive component has adhesive force on only one surface; The first base further includes a first winding bracket, which includes: One long axis; A winding body extends along the long axis, the winding body comprising a non-metallic material; A hollow structure is formed within the winding body; A first retaining wall, used to restrict the first coil assembly and located on one side of the first winding support; and A second retaining wall is used to restrict the first coil assembly and is located on the other side of the first winding bracket; The extension directions of the first retaining wall and the second retaining wall are not parallel to the major axis; The first base also includes: A first magnetically conductive component has a plate-like structure and is disposed within the hollow structure; A second magnetically conductive component, having a plate-like structure, is disposed within the hollow structure; and A third magnetically conductive component has a plate-like structure and is disposed within the hollow structure; The first magnetically conductive component and the second magnetically conductive component are arranged along the long axis direction; The first magnetically conductive component and the third magnetically conductive component are arranged along a direction perpendicular to the long axis; A first surface of the first magnetically conductive component is parallel to a second surface of the second magnetically conductive component; Both the first surface and the second surface overlap with an imaginary plane; In the long axis direction, the size of the first coil assembly is smaller than the size of the first adhesive assembly; The first coil mechanism further includes a second adhesive component, which is disposed on the first magnetically conductive component, the second magnetically conductive component, and the third magnetically conductive component; The second adhesive component is made of heat-resistant material; The second adhesive component can withstand temperatures above 100 degrees Celsius; The resistivity of the second adhesive component is greater than 640 Ωm; The second adhesive component has adhesive force on only one surface; The second adhesive component contacts the first magnetically conductive component; The second adhesive component contacts the second magnetically conductive component; The second adhesive component contacts the third magnetically conductive component; One outer surface of the second adhesive component faces the first winding bracket; There is a gap between the outer surface and the first winding bracket; The first coil mechanism also includes an adhesive component disposed in the gap; The thermal conductivity of this adhesive component is greater than 20 W / mK; In the long axis direction, the total size of the first magnetically conductive component, the second magnetically conductive component, and the third magnetically conductive component is larger than the size of the first winding bracket; In the long axis direction, the size of the first adhesive component is smaller than the size of the second adhesive component; The first coil mechanism also includes: A first adhesive component contacts the first retaining wall and the second adhesive component; A second adhesive member contacts the first retaining wall and the second adhesive assembly, wherein the first magnetically conductive assembly, the second magnetically conductive assembly, and the third magnetically conductive assembly are located between the first adhesive member and the second adhesive member; A third adhesive member contacts the second retaining wall and the second adhesive assembly; and A fourth adhesive member contacts the second barrier and the second adhesive assembly, wherein the first magnetically conductive assembly, the second magnetically conductive assembly, and the third magnetically conductive assembly are located between the third adhesive member and the fourth adhesive member; In a state of use, the first coil mechanism and the second coil mechanism are arranged along the long axis.

5. The coil module as claimed in claim 1, characterized in that, The first base has a long strip structure; The first base is made of a magnetically conductive material; The first base includes a first section, a second section and an intermediate section, wherein the first section is connected to the second section via the intermediate section; The first coil assembly is disposed on the first base, and the first coil assembly includes a first coil assembly and a second coil assembly. The first coil assembly is wound in a first direction around a first section of the first base, and the second coil assembly is wound in a second direction around a second section of the first base. The first direction is different from the second direction; The first direction is opposite to the second direction; The first coil assembly and the second coil assembly are electrically connected in series. The first coil mechanism also includes an energy storage component, which is disposed on the first base; The energy storage component and the intermediate section are arranged along a main axis; The first section is located between the energy storage assembly and at least part of the first coil assembly; At least a portion of the first coil assembly is located between the first segment and the energy storage assembly; The second section is located between the energy storage assembly and at least a portion of the second coil assembly; At least a portion of the second coil assembly is located between the second section and the energy storage assembly; When viewed along the main axis, the first segment and the second segment are located on opposite sides of the main axis; The first section has an arc structure; The second section has an arc structure; The first coil mechanism also includes a magnetic shielding component disposed between the energy storage component and the first base; The magnetic shielding component is disposed between the energy storage component and the first coil component.

Images