Wireless transmission module

Abstract

A wireless transmission module for transmitting energy or signals includes a coil assembly and a sensing substrate. The coil assembly has a winding shaft, and the sensing substrate corresponds to the coil assembly. The sensing substrate has a first surface facing the coil assembly.

Description

Technical Field

[0001] The present disclosure relates to a wireless transmission module, and more particularly to a wireless transmission module used in wireless communication or wireless charging. Prior Art

[0002] With the advancement of technology, many electronic devices (such as tablets and smartphones) now feature wireless charging. Users can place their electronic device on a wireless charging transmitter, which then uses electromagnetic induction or resonance to generate current to charge the battery. Due to the convenience of wireless charging, electronic devices with wireless charging modules are becoming increasingly popular.

[0003] Generally speaking, wireless charging modules include a magnetically permeable substrate supporting a coil. When the coil is powered and operating in wireless charging or wireless communication mode, the magnetically permeable substrate can further concentrate the magnetic flux emitted by the coil, achieving better performance. However, the existing structure of wireless charging (or communication) modules and the coil winding methods do not meet the various requirements for wireless transmission modules, such as improved charging and communication performance and a more compact size.

[0004] Therefore, how to design a wireless transmission module that can meet the various needs of users is a topic worth exploring and solving today. Summary of the Invention

[0005] According to some embodiments of the present disclosure, a wireless transmission module for transmitting energy or signals is provided. The wireless transmission module includes a coil assembly and an inductive substrate. The coil assembly has a winding bobbin, and the inductive substrate corresponds to the coil assembly. The inductive substrate has a first surface facing the coil assembly.

[0006] According to some embodiments of the present disclosure, a sensing substrate includes: a first block; a second block adjacent to the first block; a third block adjacent to the second block; a fourth block adjacent to the third block; a first gap adjacent to and located between the first and second blocks; a second gap adjacent to and located between the second and third blocks; and a third gap adjacent to and located between the third and fourth blocks. The second block is located between the first and second gaps. The third block is located between the second and third gaps. The shortest distance between the first and second gaps is smaller than the shortest distance between the second and third gaps.

[0007] According to some embodiments of the present disclosure, the angle between the extension direction of the first gap and the extension direction of the second gap is less than 20 degrees. The angle between the extension direction of the second gap and the extension direction of the third gap is less than 20 degrees.

[0008] According to some embodiments of the present disclosure, the sensing substrate further includes: a first boundary extending along a first axial direction; a first block, a second block, a third block, and a fourth block arranged in sequence along an oblique axis; the oblique axis being non-parallel to the first axial direction; a length of the first gap being different from a length of the second gap; a length of the first gap being smaller than a length of the second gap; a length of the second gap being different from a length of the third gap; and a length of the second gap being smaller than a length of the third gap; and an angle between an extension direction of the first gap and an extension direction of the first boundary being greater than 45 degrees.

[0009] According to some embodiments of the present disclosure, the sensing substrate further includes: a first boundary extending along a first axial direction; a first gap closer to the first boundary than a second gap; and a second gap closer to the first boundary than a third gap. An angle between an extension direction of the first gap and an extension direction of the first boundary is less than 20 degrees.

[0010] According to some embodiments of the present disclosure, the sensing substrate further includes: a fifth block; a sixth block adjacent to the fifth block; a seventh block adjacent to the sixth block; an eighth block; a ninth block adjacent to the eighth block; a tenth block adjacent to the ninth block; a fourth gap adjacent to and located between the fifth and sixth blocks; a fifth gap adjacent to and located between the sixth and seventh blocks; a sixth gap adjacent to and located between the eighth and ninth blocks; and a seventh gap adjacent to and located between the ninth and tenth blocks. The sixth block is located between the fourth and fifth gaps. The ninth block is located between the sixth and seventh gaps. The shortest distance between the fourth and fifth gaps is less than the shortest distance between the sixth and seventh gaps. The angle between the extension direction of the fourth gap and the first boundary is greater than 70 degrees.

[0011] According to some embodiments of the present disclosure, the fifth block is closer to the first boundary than the eighth block, and an angle between a line connecting the center of the fifth block and the center of the sixth block and a line connecting the center of the fifth block and the center of the eighth block is greater than 45 degrees.

[0012] According to some embodiments of the present disclosure, the wireless transmission module further includes: a first protective element configured to be connected to the sensing substrate; a second protective element configured to be connected to the sensing substrate; and a first connecting component configured to securely connect the coil assembly to the first protective element. The sensing substrate is located between the first protective element and the second protective element. The first protective element and the second protective element are made of different materials. When viewed along the winding axis, the first protective element is larger than the sensing substrate. When viewed along the winding axis, the second protective element is larger than the sensing substrate. The first protective element has a first contact portion, a bent portion, and a second contact portion. The first contact portion is configured to contact a first surface of the sensing substrate. The second contact portion is configured to contact the second protective element. The second protective element is configured to contact a second surface of the sensing substrate. The first and second surfaces are located on opposite sides of the sensing substrate. The bent portion extends in a direction that is not parallel to the direction in which the first contact portion extends. The bent portion extends in a direction that is not parallel to the direction in which the second contact portion extends. At least a portion of the bent portion does not contact a side surface of the sensing substrate. A gap is formed between the bent portion, the side surface, and the second protective element. The side surface is connected between the first surface and the second surface.

[0013] According to some embodiments of the present disclosure, a first connecting component is disposed between the coil assembly and the first protective element. The coil assembly is bonded to the first protective element via the first connecting component. The first connecting component has a shape corresponding to the coil assembly. When viewed along the winding axis, the first connecting component has a size smaller than or equal to the size of the coil assembly.

[0014] According to some embodiments of the present disclosure, the coil assembly is disposed between a first connecting assembly and a first protective element. The shape of the first connecting assembly corresponds to that of the first protective element. When viewed along the winding axis, the dimensions of the first connecting assembly are equal to those of the first protective element. The first connecting assembly is bonded to the coil assembly. The first protective element is bonded to the coil assembly. The first protective element and the first connecting assembly are made of different materials. The first protective element and the first connecting assembly have different Young's moduli.

[0015] This disclosure proposes a wireless transmission module for transmitting energy or signals, comprising at least one coil assembly and at least one inductive substrate. The inductive substrate is positioned adjacent to the coil assembly and configured to alter the electromagnetic field distribution near the coil assembly, thereby concentrating the electromagnetic waves from the coil assembly. The design of the wireless transmission module disclosed herein can improve mechanical strength, operating efficiency, charging efficiency, heat dissipation efficiency, overall miniaturization, overall weight reduction, and reduced electromagnetic interference.

[0016] In some embodiments, the sensing substrate may undergo a pressing process, resulting in a plurality of first and second cracks. The first and second cracks intersect and are not parallel to each other. Consequently, these first and second cracks may form a plurality of blocks, with the blocks adjacent to the edges being the smallest and the block located in the center of the sensing substrate being the largest. This design effectively increases the flexibility of the sensing substrate, thereby preventing damage to the sensing substrate 106 due to bending or impact. Simple diagram description

[0017] FIG1 is an exploded view of a wireless transmission module 100 according to an embodiment of the present disclosure. FIG2 is a top view of the assembled wireless transmission module 100 according to one embodiment of the present disclosure. FIG3 is a schematic diagram of the assembled wireless transmission module 100 according to one embodiment of the present disclosure, viewed along the Y-axis direction. FIG4 is an enlarged schematic diagram of the area EX1 in FIG3 according to an embodiment of the present disclosure. FIG. 4A and FIG. 4B are enlarged schematic views of the wireless transmission module 100 according to different embodiments of the present disclosure. FIG5 is a top view of the sensing substrate 106 according to an embodiment of the present disclosure. FIG6 is an enlarged schematic diagram of the area EX2 in FIG5 according to one embodiment of the present disclosure. FIG7 is an enlarged schematic diagram of a sensing substrate 106 according to another embodiment of the present disclosure. FIG8 is an enlarged schematic diagram of a sensing substrate 106 according to another embodiment of the present disclosure. FIG8A is an enlarged schematic diagram of a sensing substrate 106 according to another embodiment of the present disclosure. FIG9 is an exploded view of a wireless transmission module 100A according to another embodiment of the present disclosure. Implementation Method

[0018] The following discloses numerous different implementation methods or examples for implementing various features of the subject matter provided. Specific embodiments of components and their arrangements are described below to illustrate the present disclosure. These embodiments are intended for illustrative purposes only and should not be construed as limiting the scope of the present disclosure. For example, when the specification mentions a first feature being formed on a second feature, this may include embodiments in which the first and second features are in direct contact, as well as embodiments in which other features are located between the first and second features. In other words, the first and second features are not in direct contact.

[0019] Furthermore, repeated reference numerals or indices may be used in different embodiments. This repetition is intended solely for simplicity and clarity in describing the present disclosure and does not necessarily imply a specific relationship between the various embodiments and / or structures discussed. Furthermore, in the present disclosure, a feature formed on, connected to, and / or coupled to another feature may include embodiments in which the features are formed in direct contact, and may also include embodiments in which additional features may be formed to be inserted into the aforementioned features, such that the aforementioned features may not be in direct contact. Furthermore, spatially relative terms such as "vertical," "above," "upper," "lower," "bottom," and similar terms (e.g., "downwardly," "upwardly," etc.) may be used. These spatially relative terms are used to facilitate description of the relationship between one element or feature and another element or feature in the diagrams. These spatially relative terms are intended to encompass different orientations of the device including the features.

[0020] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. It is understood that these terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with the background or context of the relevant art and this disclosure and should not be interpreted in an idealized or overly formal manner unless specifically defined herein.

[0021] Furthermore, the use of ordinal numbers such as "first" and "second" in the specification and claims to modify the elements of the claims does not in itself imply or represent any previous ordinal number of the claimed elements, nor does it represent the order of one claimed element and another claimed element, or the order in the manufacturing method. The use of such ordinal numbers is only used to clearly distinguish a claimed element with a certain name from another claimed element with the same name.

[0022] Furthermore, in some embodiments of the present disclosure, terms such as "connect," "connect," and "interconnect," unless otherwise specified, may refer to two structures being in direct contact, or may refer to two structures not being in direct contact, with another structure positioned between them. Furthermore, these terms may include situations where both structures are movable or both structures are fixed.

[0023] Please refer to Figure 1, which is an exploded view of a wireless transmission module 100 according to one embodiment of the present disclosure. As shown in Figure 1, wireless transmission module 100 is a wireless transmission module that can be used to transmit energy or signals. In this embodiment, wireless transmission module 100 may include a coil assembly 102, a first connecting assembly 104, a sensing substrate 106, a first protection element 108, a second protection element 110, and a third protection element 112.

[0024] In this embodiment, the coil assembly 102, the first connecting assembly 104, the first protection element 108, the sensing substrate 106, the second protection element 110, and the third protection element 112 are sequentially arranged along a first direction A1. The first direction A1 may be the extending direction of the winding axis RX of the coil assembly 102.

[0025] In this embodiment, the coil assembly 102 can function as a charging coil for wireless charging by an external charging device. For example, the coil assembly 102 can function as a resonant charging coil based on the Alliance for Wireless Power (A4WP) standard, but is not limited thereto.

[0026] Furthermore, coil assembly 102 can be based on Wireless Power Consortium (WPC) standards, such as the Qi standard, to function as an inductive charging coil. Therefore, this embodiment allows coil assembly 102 to simultaneously support different charging methods, expanding its range of applications. For example, at close distances (e.g., less than 1 cm), inductive operation is used, while at longer distances, resonant operation is employed.

[0027] In this embodiment, the coil assembly 102 can also serve as a communication coil, for example, operating in a near field communication (NFC) mode to communicate with an external electronic device.

[0028] In this embodiment, the inductive substrate 106 is disposed adjacent to the coil assembly 102. The inductive substrate 106 is configured to alter the electromagnetic field distribution near the coil assembly 102. The inductive substrate 106 may be a magnetic material, such as, but not limited to, a ferrite. For example, in other embodiments, the inductive substrate 106 may also comprise a nanocrystalline material. The inductive substrate 106 may have a magnetic permeability corresponding to that of the coil assembly 102, thereby further concentrating the electromagnetic waves of the coil assembly 102.

[0029] The first adhesive component 104, the first protective element 108, the second protective element 110, and the third protective element 112 can be double-sided or single-sided tape, used to adhere to one or two adjacent components. In some embodiments, one or more of the first adhesive component 104, the first protective element 108, and the second protective element 110 can be made of polyethylene terephthalate (PET), but is not limited thereto. The third protective element 112 is used to protect the wireless transmission module 100 and is removed when the wireless transmission module 100 is installed in an electronic device (not shown).

[0030] Please refer to Figures 1 through 3 simultaneously. Figure 2 is a top view of the assembled wireless transmission module 100 according to one embodiment of the present disclosure, and Figure 3 is a schematic diagram of the assembled wireless transmission module 100 according to one embodiment of the present disclosure, viewed along the Y-axis. As shown in Figures 1 and 2, the wireless transmission module 100 defines a first axis AX1 and a second axis AX2, with the first axis AX1 being perpendicular to the second axis AX2. For example, the first axis AX1 is parallel to the Y-axis, the second axis AX2 is parallel to the X-axis, and the first axis AX1, the second axis AX2, and the winding axis RX are all perpendicular to each other.

[0031] In this embodiment, as shown in FIG. 1 , the coil assembly 102 has a body 1020 , a first lead wire 1021 , and a second lead wire 1022 . The first lead wire 1021 and the second lead wire 1022 are connected to the body 1020 , and the first lead wire 1021 is substantially parallel to the second lead wire 1022 .

[0032] In addition, as shown in FIG. 2 , when viewed along the first direction A1 (the direction of the winding axis RX), the body 1020 has two straight portions 102SP and two bent portions 102CP, the straight portions 102SP are connected to the bent portions 102CP, and the body 1020 may have an elliptical structure.

[0033] Specifically, as shown in FIG. 2 , when viewed along a first direction A1 (the direction of the winding axis RX), a first distance DS1 is defined between the main body 1020 and the sensing substrate 106 along a first axial direction AX1, and a second distance DS2 is defined between the main body 1020 and the sensing substrate 106 along a second axial direction AX2. Furthermore, the first distance DS1 is greater than the second distance DS2.

[0034] It is worth noting that, as shown in FIG2 , the first protection element 108 has a first notch 108N, the sensing substrate 106 has a second notch 106N, and the second protection element 110 has a third notch 110N. The first notch 108N corresponds in shape to the second notch 107N, and the third notch 110N also corresponds in shape to the second notch 107N.

[0035] The first notch 108N, the second notch 106N, and the third notch 110N can serve as a positioning structure to accurately position the wireless transmission module 100. In other embodiments, the first protection element 108, the sensing substrate 106, and the second protection element 110 may not have the first notch 108N, the second notch 106N, and the third notch 110N.

[0036] In this embodiment, the first protection element 108 may be a single-sided tape configured to connect to the sensing substrate 106, and the second protection element 110 may be a double-sided tape configured to connect to the sensing substrate 106. Furthermore, the first bonding element 104 may be a double-sided tape configured to securely bond the coil assembly 102 to the first protection element 108.

[0037] As shown in Figures 1 and 3 , the sensing substrate 106 is located between the first protection element 108 and the second protection element 110. The first protection element 108 and the second protection element 110 can jointly cover the sensing substrate 106. Furthermore, the first protection element 108 and the second protection element 110 can be made of different materials. For example, the first protection element 108 can be made of polyethylene terephthalate (PET), while the second protection element 110 can be made of polyvinyl chloride (PVC).

[0038] Because the first protection element 108 and the second protection element 110 are made of different materials, their Young's moduli are different. With this design, when the wireless transmission module 100 is impacted, the first protection element 108 and the second protection element 110 are harder and the other is softer, effectively absorbing the impact force and protecting the sensing substrate 106 from damage.

[0039] As shown in FIG. 2 , when viewed along the winding axis RX, the first protection element 108 is larger than the sensing substrate 106. When viewed along the winding axis RX, the second protection element 110 is larger than the sensing substrate 106. In this embodiment, the first protection element 108 and the second protection element 110 may have the same size, but this is not limiting.

[0040] Please refer to Figures 3 and 4. Figure 4 is an enlarged schematic diagram of area EX1 in Figure 3 according to one embodiment of the present disclosure. As shown in Figure 4, the first protection element 108 has a first contact portion 1081, a bent portion 1083, and a second contact portion 1082. The sensing substrate 106 has a first surface 106S1. The first contact portion 1081 is configured to contact the first surface 106S1 of the sensing substrate 106.

[0041] The second contact portion 1082 is configured to contact the second protection element 110, and the second protection element 110 is configured to contact a second surface 106S2 of the sensing substrate 106. The first surface 106S1 and the second surface 106S2 are located on opposite sides of the sensing substrate 106, and the first surface 106S1 faces the coil assembly 102.

[0042] As shown in FIG. 4 , the extending direction of the bent portion 1083 is not parallel to the extending direction of the first contact portion 1081 , and the extending direction of the bent portion 1083 is not parallel to the extending direction of the second contact portion 1082 .

[0043] It is worth noting that at least a portion of the bent portion 1083 does not contact the side surface 106S3 of the sensing substrate 106. Therefore, a gap SP is formed between the bent portion 1083, the side surface 106S3, and the second protection element 110. The side surface 106S3 is connected between the first surface 106S1 and the second surface 106S2.

[0044] In addition, it should be noted that the gap SP is enclosed between the first protection element 108, the second protection element 110 and the sensing substrate 106, thereby ensuring that particles generated by the sensing substrate 106 do not fall outside.

[0045] Similarly, as shown in FIG. 2 and FIG. 3 , in this embodiment, because the sizes of the first protection element 108 and the second protection element 110 are larger than the size of the sensing substrate 106, the portion of the first protection element 108 near the first notch 108N can be securely attached to the portion of the second protection element 110 near the third notch 110N, thereby completely sealing the second notch 106N and preventing particles generated by the sensing substrate 106 from falling outside.

[0046] Please refer to Figures 4A and 4B, which are enlarged schematic diagrams of wireless transmission module 100 according to various embodiments of the present disclosure. In the embodiment of Figure 4A, the direction in which the bent portion 1083 extends is perpendicular to the direction in which the first contact portion 1081 and the second contact portion 1082 extend, and the bent portion 1083 is closely attached to the side surface 106S3. This configuration eliminates any gap between the bent portion 1083 and the side surface 106S3, further preventing particles generated by the sensing substrate 106 from falling to the outside.

[0047] In the embodiment of FIG. 4B , similar to the first protection element 108 , the second protection element 110 also has a third contact portion 1101, a bent portion 1103, and a fourth contact portion 1102. As shown in FIG. 4B , the third contact portion 1101 is configured to contact the second surface 106S2 , and the extending direction of the bent portion 1103 is not parallel to the extending direction of the third contact portion 1101 , and the extending direction of the bent portion 1103 is also not parallel to the extending direction of the fourth contact portion 1102 .

[0048] Similarly, at least a portion of the bent portion 1103 does not contact the side surface 106S3, and the fourth contact portion 1102 is bonded to the second contact portion 1082. The bonded portion is located between the first contact portion 1081 and the third contact portion 1101 in the Z-axis direction. Therefore, a gap SP is formed between the bent portion 1083, the bent portion 1103, and the side surface 106S3. This structural configuration not only prevents particles generated by the sensing substrate 106 from falling to the outside, but also increases the connection strength between the first protection element 108 and the second protection element 110.

[0049] Please return to Figures 1 and 3. In this embodiment, the first bonding component 104 is disposed between the coil assembly 102 and the first protective element 108. The first bonding component 104 can be double-sided tape, and the coil assembly 102 is bonded to the first protective element 108 via the first bonding component 104.

[0050] The shape of the first bonding component 104 corresponds to the shape of the coil assembly 102, for example, an elliptical ring. As shown in Figure 3, when viewed along the winding axis RX, the dimensions of the first bonding component 104 are smaller than or equal to those of the coil assembly. This design prevents dust from adhering to the first bonding component 104 and thereby affecting the efficiency of the wireless transmission module 100.

[0051] Next, please refer to FIG. 5 , which is a top view of a sensing substrate 106 according to an embodiment of the present disclosure. In this embodiment, the sensing substrate 106 may undergo a pressing process. Thus, when viewed along the winding axis RX (Z-axis), the sensing substrate 106 has a plurality of first cracks SV1-SVm and second cracks ST1-STn, where m and n are natural numbers. The first cracks and the second cracks intersect, and the first cracks are not parallel to the second cracks.

[0052] Thus, these first and second cracks can form a plurality of blocks. Please refer to FIG. 6 , which is an enlarged schematic diagram of region EX2 in FIG. 5 according to an embodiment of the present disclosure. As shown in FIG. 6 , the sensing substrate 106 can include a first block BK1, a second block BK2, a third block BK3, and a fourth block BK4.

[0053] The second block BK2 is adjacent to the first block BK1, the third block BK3 is adjacent to the second block BK2, and the fourth block BK4 is adjacent to the third block BK3. Furthermore, the sensing substrate 106 may have a first gap GP1, a second gap GP2, and a third gap GP3.

[0054] The first gap GP1 is part of the first crack SV1, the second gap GP2 is part of the first crack SV2, and the third gap GP3 is part of the third crack SV3. The first gap GP1 is adjacent to and located between the first block BK1 and the second block BK2, the second gap GP2 is adjacent to and located between the second block BK2 and the third block BK3, and the third gap GP3 is adjacent to and located between the third block BK3 and the fourth block BK4.

[0055] The second block BK2 is located between the first gap GP1 and the second gap GP2, and the third block BK3 is located between the second gap GP2 and the third gap GP3. It is worth noting that the shortest distance between the first gap GP1 and the second gap GP2 is smaller than the shortest distance between the second gap GP2 and the third gap GP3. This means that the closer the block is to the center of the sensing substrate 106, the larger it is.

[0056] In this embodiment, the first slit SV1 may not be parallel to the first slit SV2, so the extension direction of the first gap GP1 is also not parallel to the extension direction of the second gap GP2. For example, the angle between the extension direction of the first gap GP1 and the extension direction of the second gap GP2 may be less than 20 degrees, and the angle between the extension direction of the second gap GP2 and the extension direction of the third gap GP3 may be less than 20 degrees.

[0057] Similarly, the first crack SV2 may not be parallel to the first crack SV3, and so on. Similarly, the second crack ST1 may not be parallel to the second crack ST2. For example, the angle between the second crack ST1 and the second crack ST2 may be less than 20 degrees, and so on for the other second cracks.

[0058] Furthermore, the sensing substrate 106 further includes a first boundary 1061 extending along the first axial direction AX1. As shown in FIG6 , the first gap GP1 is closer to the first boundary 1061 than the second gap GP2, and the second gap GP2 is closer to the first boundary 1062 than the third gap GP3. Similarly, the angle between the extension direction of the first gap GP1 and the extension direction of the first boundary 1061 can be less than 20 degrees.

[0059] Please refer to FIG. 7 , which is an enlarged schematic diagram of a sensing substrate 106 according to another embodiment of the present disclosure. In this embodiment, in addition to the aforementioned first block BK1, second block BK2, and third block BK3, the sensing substrate 106 may include a fifth block BK5, a sixth block BK6, a seventh block BK7, an eighth block BK8, a ninth block BK9, and a tenth block BK10.

[0060] The sixth block BK6 is adjacent to the fifth block BK5, and the seventh block BK7 is adjacent to the sixth block BK6. Furthermore, the ninth block BK9 is adjacent to the eighth block BK8, and the tenth block BK10 is adjacent to the ninth block BK9.

[0061] Similarly, the sensing substrate 106 includes a fourth gap GP4, a fifth gap GP5, a sixth gap GP6, and a seventh gap GP7. The fourth gap GP4 is adjacent to and located between the fifth block BK5 and the sixth block BK6.

[0062] The fifth gap GP5 is adjacent to and located between the sixth block BK6 and the seventh block BK7, the sixth gap GP6 is adjacent to and located between the eighth block BK8 and the ninth block BK9, and the seventh gap GP7 is adjacent to and located between the ninth block BK9 and the tenth block BK10.

[0063] The sixth block BK6 is located between the fourth gap GP4 and the fifth gap GP5, and the ninth block BK9 is located between the sixth gap GP6 and the seventh gap GP7. The shortest distance between the fourth gap GP4 and the fifth gap GP5 is smaller than the shortest distance between the sixth gap GP6 and the seventh gap GP7. This means that the size of the sixth block BK6 is smaller than that of the ninth block BK9. Similarly, the size of the seventh block BK7 is smaller than that of the tenth block BK10, and so on.

[0064] In this embodiment, the fourth gap GP4 may not be parallel to the second axis AX2. For example, the angle between the extension direction of the fourth gap GP4 and the first boundary 1061 is greater than 70 degrees. In this embodiment, the fourth gap GP4 is perpendicular to the first boundary 1061, but this is not limited to this. Furthermore, the fifth block BK5 is closer to the first boundary 1061 than the eighth block BK8.

[0065] It is noteworthy that an angle AG between a line connecting the center of the fifth block BK5 and the center of the sixth block BK6 and a line connecting the center of the fifth block BK5 and the center of the eighth block BK8 is greater than 45 degrees.

[0066] Furthermore, as shown in FIG. 7 , in this embodiment, the fourth gap GP4 is not directly connected to the sixth gap GP6, and the fourth gap GP4 may not be parallel to the sixth gap GP6. Similarly, the fifth gap GP5 is not directly connected to the seventh gap GP7, and the fifth gap GP5 may not be parallel to the seventh gap GP7. Furthermore, the fourth gap GP4 may not be parallel to the fifth gap GP5, and the sixth gap GP6 may not be parallel to the seventh gap GP7.

[0067] For example, the angle between the extension direction of the fourth gap GP4 and the extension direction of the fifth gap GP5 may be less than 20 degrees, the angle between the extension direction of the fourth gap GP4 and the extension direction of the sixth gap GP6 may be less than 20 degrees, the angle between the extension direction of the sixth gap GP6 and the extension direction of the seventh gap GP7 may be less than 20 degrees, and the angle between the extension direction of the fifth gap GP5 and the extension direction of the seventh gap GP7 may be less than 20 degrees.

[0068] Next, please refer to FIG. 8 , which is an enlarged schematic diagram of a sensing substrate 106 according to another embodiment of the present disclosure. In this embodiment, a first block BK1, a second block BK2, a third block BK3, and a fourth block BK4 are arranged sequentially along an oblique axis IX. The oblique axis IX is not parallel to the first axis AX1 and the second axis AX2. For example, the angle between the oblique axis IX and the first axis AX1 can be 45 degrees, but this is not limited thereto.

[0069] As shown in FIG8 , the length of the first gap GP1 is different from the length of the second gap GP2. For example, the length of the first gap GP1 is smaller than the length of the second gap GP2. Similarly, the length of the second gap GP2 is different from the length of the third gap GP3. For example, the length of the second gap GP2 is smaller than the length of the third gap GP3.

[0070] Furthermore, the angle between the extension direction of the first gap GP1 and the extension direction of the first boundary 1061 may be greater than 45 degrees, and the extension direction of the first gap GP1 may not be parallel to the extension direction of the second gap GP2. For example, the angle between the extension direction of the first gap GP1 and the extension direction of the second gap GP2 is less than 20 degrees. Similarly, the angle between the extension direction of the second gap GP2 and the extension direction of the third gap GP3 is less than 20 degrees, and so on.

[0071] In this embodiment, the angle between the oblique axis IX and the extension direction of the first gap GP1 can be, for example, 70~90 degrees, the angle between the oblique axis IX and the extension direction of the second gap GP2 can be, for example, 70~90 degrees, and the angle between the oblique axis IX and the extension direction of the third gap GP3 can be, for example, 70~90 degrees, but is not limited thereto.

[0072] Next, please refer to FIG. 8A , which is an enlarged schematic diagram of a sensing substrate 106 according to another embodiment of the present disclosure. In other embodiments, as shown in FIG. 8A , the angle between the oblique axis IX and the extension direction of the first gap GP1 can be, for example, 0-20 degrees, the angle between the oblique axis IX and the extension direction of the second gap GP2 can be, for example, 0-20 degrees, and the angle between the oblique axis IX and the extension direction of the third gap GP3 can be, for example, 0-20 degrees.

[0073] Please refer to Figure 9, which is an exploded view of a wireless transmission module 100A according to another embodiment of the present disclosure. In this embodiment, the coil assembly 102 is disposed between the first bonding component 104 and the first protective element 108, and the shape of the first bonding component 104 corresponds to that of the first protective element 108.

[0074] When viewed along the winding axis RX, the dimensions of the first bonding component 104 are equal to the dimensions of the first protective element 108. The first bonding component 104 is bonded to the coil assembly 102, and the first protective element 108 is bonded to the coil assembly 102. In other words, the coil assembly 102 is enclosed by the first bonding component 104 and the first protective element 108.

[0075] In this embodiment, the first bonding component 104 can be a single-sided tape or a double-sided tape, and the first protection element 108 can be a double-sided tape. Moreover, the first protection element 108 and the first bonding component 104 have different materials, and therefore the Young's modulus of the first protection element 108 and the first bonding component 104 are different.

[0076] Based on this design, when the wireless transmission module 100A is impacted, since one of the first protection element 108 and the first connecting component 104 is harder and the other is softer, the impact force can be effectively absorbed, thereby protecting the sensing substrate 106 and the coil component 102 from damage.

[0077] In summary, the present disclosure proposes a wireless transmission module for transmitting energy or signals, comprising a coil assembly and an inductive substrate. The inductive substrate is positioned adjacent to the coil assembly and is configured to alter the electromagnetic field distribution near the coil assembly, thereby concentrating the electromagnetic waves from the coil assembly. The design of the wireless transmission module disclosed herein can improve mechanical strength, operating efficiency, charging efficiency, heat dissipation efficiency, overall miniaturization, overall weight reduction, and reduced electromagnetic interference.

[0078] In some embodiments, the sensing substrate 106 may undergo a pressing process, resulting in a plurality of first and second cracks. The first and second cracks intersect and are not parallel to each other. Consequently, these first and second cracks may form a plurality of blocks, with the blocks adjacent to the edges being the smallest and the block located in the center of the sensing substrate 106 being the largest. This design effectively increases the flexibility of the sensing substrate 106, thereby preventing damage to the sensing substrate 106 due to bending or impact.

[0079] In this specification and the scope of the patent application, ordinal numbers, such as "first", "second", "third", etc., have no sequential relationship with each other and are only used to mark and distinguish two different components with the same name.

[0080] Although the embodiments and advantages of the present disclosure have been disclosed above, it should be understood that changes, substitutions, and modifications may be made by anyone skilled in the art without departing from the spirit and scope of the present disclosure. Furthermore, the scope of protection of the present disclosure is not limited to the processes, machines, manufactures, compositions of matter, devices, methods, and steps described in the specific embodiments herein. Anyone skilled in the art will understand from the disclosure that any processes, machines, manufactures, compositions of matter, devices, methods, and steps currently or in the future that can perform substantially the same functions or achieve substantially the same results as those described in the embodiments herein may be used in accordance with the present disclosure. Therefore, the scope of protection of the present disclosure includes the aforementioned processes, machines, manufactures, compositions of matter, devices, methods, and steps. Furthermore, each claim constitutes a separate embodiment, and the scope of protection of the present disclosure also includes the combination of individual claims and embodiments.

[0081] 100, 100A: Wireless transmission module 102: Coil assembly 1020:Ontology 1021: First lead wire 1022: Second lead wire 104: First connecting component 106: Sensing substrate 1061: The First Boundary 106N: Second gap 106S1: First surface 106S2: Second surface 106S3: Side surface 108: First protection element 1081: First contact portion 1082: Second contact portion 1083: bending part 108N: First gap 110: Second protection element 1101: Third contact portion 1102: Fourth contact portion 1103: bending part 110N: Third notch 112: Third protection element A1: First direction AG: Angle AX1: first axis AX2: Second axis BK1: Block 1 BK2: Block 2 BK3: Block 3 BK4: Block 4 BK5: Block 5 BK6: Block 6 BK7: Block 7 BK8: Block 8 BK9: Block 9 BK10: Block 10 EX1: Area EX2: Area GP1: First Gap GP2: Second Gap GP3: Third Gap GP4: Fourth Gap GP5: Fifth Gap GP6: Sixth Gap GP7: Seventh Gap IX: oblique axis RX: Winding spool SP: Gap SV1~SVm: first crack ST1~STn: Second crack X: X axis Y: Y axis Z: Z axis

Claims

1. A wireless transmission module for transmitting energy or signals, comprising: A coil assembly having a winding shaft; And an induction substrate corresponding to the coil assembly; The sensing substrate has a first surface facing the coil assembly; the sensing substrate includes: a first block; a second block adjacent to the first block; a third block adjacent to the second block; a fourth block adjacent to the third block; a first gap adjacent to and located between the first block and the second block; a second gap adjacent to and located between the second block and the third block; and a third gap adjacent to and located between the third block and the fourth block; the second block is located between the first gap and the second gap; the third block is located between the second gap and the third gap; the shortest distance between the first gap and the second gap is less than the shortest distance between the second gap and the third gap.

2. The wireless transmission module as described in claim 1, wherein the angle between the extension direction of the first gap and the extension direction of the second gap is less than 20 degrees; and the angle between the extension direction of the second gap and the extension direction of the third gap is less than 20 degrees.

3. The wireless transmission module as claimed in claim 2, wherein the sensing substrate further comprises: a first boundary extending along a first axial direction; the first block, the second block, the third block, and the fourth block being arranged sequentially along an oblique axis; the oblique axis not being parallel to the first axial direction; the length of the first gap being different from the length of the second gap; the length of the first gap being less than the length of the second gap; the length of the second gap being different from the length of the third gap; the length of the second gap being less than the length of the third gap; and the angle between the extension direction of the first gap and the extension direction of the first boundary being greater than 45 degrees.

4. The wireless transmission module as claimed in claim 2, wherein the sensing substrate further comprises: a first boundary extending along a first axial direction; the first gap being closer to the first boundary than the second gap; the second gap being closer to the first boundary than the third gap; and the angle between the extension direction of the first gap and the extension direction of the first boundary being less than 20 degrees.

5. The wireless transmission module as claimed in claim 4, wherein the sensing substrate further comprises: a fifth block; a sixth block adjacent to the fifth block; a seventh block adjacent to the sixth block; an eighth block; a ninth block adjacent to the eighth block; a tenth block adjacent to the ninth block; a fourth gap adjacent to and located between the fifth block and the sixth block; a fifth gap adjacent to and located between the sixth block and the seventh block; a sixth gap adjacent to and located between the eighth block and the ninth block; and a seventh gap adjacent to and located between the ninth block and the tenth block; the sixth block is located between the fourth gap and the fifth gap; the ninth block is located between the sixth gap and the seventh gap; the shortest distance between the fourth gap and the fifth gap is less than the shortest distance between the sixth gap and the seventh gap; the angle between the extension direction of the fourth gap and the first boundary is greater than 70 degrees.

6. The wireless transmission module as described in claim 5, wherein the fifth block is closer to the first boundary than the eighth block; and the angle between the line connecting the center of the fifth block and the center of the sixth block and the line connecting the center of the fifth block and the center of the eighth block is greater than 45 degrees.

7. The wireless transmission module as claimed in claim 1, wherein the wireless transmission module further comprises: a first protection element configured to be connected to the sensing substrate; and a second protection element configured to be connected to the sensing substrate; And a first bonding component configured to securely bond the coil assembly to the first protective element; The sensing substrate is located between the first protective element and the second protective element; the first protective element and the second protective element are made of different materials; when viewed along the winding axis, the size of the first protective element is larger than the size of the sensing substrate; when viewed along the winding axis, the size of the second protective element is larger than the size of the sensing substrate; the first protective element has a first contact portion, a bending portion, and a second contact portion; the first contact portion is configured to contact the first surface of the sensing substrate; the second contact portion is configured to contact the second protective element; the second protective element is configured to contact a second surface of the sensing substrate; the first surface and the second surface are located on opposite sides of the sensing substrate; the extending direction of the bending portion is not parallel to the extending direction of the first contact portion; the extending direction of the bending portion is not parallel to the extending direction of the second contact portion; at least a portion of the bending portion does not contact one side surface of the sensing substrate; the bending portion forms a gap with the side surface and the second protective element; the side surface connects between the first surface and the second surface.

8. The wireless transmission module as claimed in claim 7, wherein the first bonding component is disposed between the coil assembly and the first protective element; the coil assembly is bonded to the first protective element by means of the first bonding component; the shape of the first bonding component corresponds to the coil assembly; and when viewed along the winding axis, the size of the first bonding component is less than or equal to the size of the coil assembly.

9. The wireless transmission module as claimed in claim 7, wherein the coil assembly is disposed between the first bonding assembly and the first protective element; the shape of the first bonding assembly corresponds to the first protective element; when viewed along the winding axis, the size of the first bonding assembly is equal to the size of the first protective element; the first bonding assembly is bonded to the coil assembly; the first protective element is bonded to the coil assembly; the first protective element and the first bonding assembly are made of different materials; the first protective element and the first bonding assembly have different Young's coefficients.

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