TW202349829A - Wireless transmission module - Google Patents

Abstract

A wireless transmission module corresponds to an electronic module and is configured to transmit a first signal, and the wireless transmission module includes a corresponding surface, a base assembly and a first coil. The corresponding surface faces the electronic module and is perpendicular to a main axis. The first coil is disposed on the base assembly. The first coil overlaps at least a portion of the base assembly when viewed along the main axis. The first coil overlaps at least a portion of the base assembly when viewed in a direction perpendicular to the main axis.

Description

Wireless transmission module

The present disclosure relates to a wireless transmission module, particularly to a wireless transmission module used in wireless communication or wireless charging.

With the development of technology, many electronic devices (such as tablets or smartphones) now have wireless charging capabilities. The user can place the electronic device on a wireless charging transmitter, so that the wireless charging receiver in the electronic device uses electromagnetic induction or electromagnetic resonance to generate current to charge the battery. Due to the convenience of wireless charging, electronic devices with wireless charging modules are gradually becoming popular among the public.

Generally speaking, a wireless charging module will include a magnetically conductive substrate carrying a coil. Among them, when the coil is energized and operated in a wireless charging mode or a wireless communication mode, the magnetic conductive substrate can make the magnetic lines of force emitted by the coil more concentrated to obtain better performance. However, the structure of the existing wireless charging (or communication) module and the winding method of the coil cannot meet the various requirements for wireless transmission modules, such as better charging, communication performance and more miniaturized size.

Therefore, how to design a wireless transmission module that can meet the various needs of users is a topic worthy of discussion and solution today.

According to some embodiments of the present disclosure, the present disclosure provides a wireless transmission module corresponding to an electronic module and configured to transmit a first signal, and the wireless transmission module includes a corresponding surface, a base component and a first coil . The corresponding surface faces the electronic module and is perpendicular to a main axis. The first coil is disposed on the base component. The first coil overlaps at least a portion of the base assembly when viewed along the principal axis. When viewed along a direction perpendicular to the main axis, the first coil overlaps at least a portion of the base component.

According to some embodiments of the present disclosure, the base component includes a first magnetic conductive part with a first magnetic conductive material; the base component includes a plurality of first magnetic conductive elements; the base component includes an iron element; the base component includes a silicon element; the base component Contains chromium element; the diameter of these first magnetic permeable elements is less than 0.05mm; the wireless transmission module further includes a first connecting element configured to connect these first magnetic permeable elements; the first connecting element directly contacts these first magnetic permeable elements ; The first connecting element directly contacts the first coil; the first coil is fixedly connected to these first magnetic conductive elements through the first connecting element; the melting point of the first connecting element is higher than 70 degrees Celsius; the melting point of the first connecting element is lower than Celsius 400 degrees.

According to some embodiments of the present disclosure, when viewed along a first direction, the base component covers at least a portion of the first coil; the first direction is opposite to the direction in which the corresponding surface faces; the base component further includes: a support portion configured to support the first coil; and a covering part covering a part of the first coil. When viewed along the direction perpendicular to the main axis, the first coil is located between the support part and the electronic module; when viewed along the main axis, the first coil overlaps at least a part of the supporting part; when viewed along the first direction , at least part of the covering part overlaps with the first coil; when viewed along the direction perpendicular to the main axis, at least part of the covering part overlaps with the first coil; when viewed along the direction perpendicular to the main axis, on the main axis, the third The center of a coil is located between the covering part and the supporting part.

According to some embodiments of the present disclosure, the first coil includes: a first lead located on a first side wall surface of the base component; and a reinforcing element disposed on the first lead. The first side wall surface is parallel to the main axis; the first lead passes through one of the first openings on the first side wall surface; the first opening has a closed structure; the reinforcing element directly contacts the first opening; the reinforcing element has a non-metallic material; on the main axis, the first The shortest distance between the coil and the corresponding surface is different from the shortest distance between the first lead and the corresponding surface; on the main axis, the shortest distance between the first coil and the corresponding surface is less than the shortest distance between the first lead and the corresponding surface; the base component further includes a first The base surface faces the electronic module; the first base surface and the first side wall surface are not parallel; the base component further includes a first structural strengthening part configured to strengthen the mechanical structure of the base component; the first structural strengthening part is located on the first base Between the surface and the first side wall surface; the surface of the first structural reinforcement part is not parallel to the first base surface and the first side wall surface; the angle between the surface of the first structural reinforcement part and the first base surface is greater than 15 degrees; the first structure The angle between the surface of the reinforced portion and the surface of the first side wall is greater than 15 degrees; the base component further includes a second base surface facing in the opposite direction to the first base surface; the base component further includes a second structural reinforcement portion configured to strengthen The mechanical structure of the base component; the second structural reinforcement part is located between the second base surface and the first side wall surface; the surface of the second structural reinforcement part is not parallel to the second base surface and the first side wall surface; the second structural reinforcement part The structure is different from that of the first structural reinforcement; the surface of the second structural reinforcement has a curvature radius greater than 0.05mm; when viewed along the main axis, the first structural reinforcement overlaps at least a part of the second structural reinforcement; wireless transmission The module further includes a second coil disposed on the base component; the second coil is electrically independent from the first coil; one of the first coil and the second coil is configured to transmit the first signal, and the other is configured to transmit the first signal. a second signal; when viewed along a direction perpendicular to the main axis, the second coil overlaps at least a portion of the first coil.

According to some embodiments of the present disclosure, the base component further includes a first base surface facing the electronic module; the base component further includes a second base surface facing in the opposite direction to the first base surface; the wireless transmission module further includes A second coil is arranged on the base component; the second coil is electrically independent from the first coil; the wireless transmission module further includes a first protection element, which is arranged on the first coil; the first protection element has a plate-like structure and is directly Contacting the first substrate surface; the first protection element directly contacts the first coil; the first protection element directly contacts the second coil; the first protection element includes a first connecting portion configured to be connected to the first coil; the first connecting portion is connected to On the first base surface; the first connecting portion is connected to the covering portion; when viewed along the direction perpendicular to the main axis, the first coil is located between the supporting portion and the first protection element; the first protection element further includes a first body , and the first connecting portion is provided on the first body; the first protection element further includes a second connecting portion configured to be connected to a first external component; the first body is located between the first connecting portion and the second connecting portion ; The first external component is a housing of an electronic device; the base component further includes a first structural strengthening part configured to strengthen the mechanical structure of the base component; when viewed along the main axis, the first protection element and the first structural strengthening part At least a part of the parts overlaps; the first connecting part is connected to the first structural reinforcement part; the wireless transmission module further includes a second protection element, which is disposed on the second base surface; the second protection element has a plate-like structure; when along the vertical When viewed in the direction of the main axis, the support portion is located between the first coil and the second protection element; the second protection element includes a third connecting portion configured to be attached to the second base surface; the second protection element further includes a second The main body, and the third connecting part is provided on the second body; the second protection element further includes a fourth connecting part configured to be connected to a second external component; the second body is located between the third connecting part and the fourth connecting part between; the second external component is a circuit component of the electronic device; the base component further includes a second structural strengthening part configured to strengthen the mechanical structure of the base component; when viewed along the main axis, the second protection element and the second structural strengthening part At least a part of the parts overlaps; the third connecting part is connected to the second structural reinforcement part; the first protection element directly contacts the second protection element; the first connecting part is connected to the third connecting part; the base component further includes: a first groove , located on the second substrate surface; a second trench located on the second substrate surface; and a third trench located on the second substrate surface. The third connecting portion corresponds to the first groove; the first groove extends to the first coil; when viewed along the direction perpendicular to the main axis, the first groove does not overlap with the first coil; when viewed along the main axis, The first trench overlaps at least a portion of the first coil; the second trench overlaps at least a portion of the first coil when viewed in a direction perpendicular to the main axis; the second trench is located on the first substrate surface; the first part corresponds to the second groove; the third connecting part corresponds to the second groove; on the main shaft, the maximum size of the first groove is different from the maximum size of the second groove; on the main shaft, the maximum size of the first groove The size is smaller than the maximum size of the second groove; when viewed along the direction perpendicular to the main axis, the third groove does not overlap with the second coil; when viewed along the main axis, at least a part of the third groove and the second coil Overlap; the third connecting portion corresponds to the third groove; on the main axis, the maximum dimension of the third groove is smaller than the maximum dimension of the second groove.

According to some embodiments of the present disclosure, the wireless transmission module further includes a first conductive element; the first coil is electrically connected to an external circuit through the first conductive element; the first conductive element has a plate-like structure; the first conductive element has a metal material ; At least part of the first conductive element is buried and not exposed by the base component; a surface of the first external electrical connection portion of the first conductive element is perpendicular or parallel to the main axis; the first external electrical connection portion is configured to electrically connect to the outside circuit; a portion of the first external electrical connection portion is exposed from the base component; a surface of the first internal electrical connection portion of the first conductive element is perpendicular or parallel to the main axis; the first internal electrical connection portion is configured to be electrically connected The first coil; the first internal electrical connection part is exposed from the base component; the wireless transmission module further includes a first reinforcing element, directly contacting the first internal electrical connection part; one of the first conductors of the first coil has a first Cross-section, the first conductive element has a second cross-section, and the first cross-section and the second cross-section have different structures; the first cross-section has an arc structure; the second cross-section has a polygonal structure; the wireless transmission module further includes: an electronic component, Disposed on the base component; a second conductive element, and the electronic component is electrically connected to the external circuit through the second conductive element; and a third conductive element, and the second coil is electrically connected to the external circuit through the third conductive element. The second conductive element has a plate-like structure; the second conductive element is made of metal; at least a part of the second conductive element is buried and not exposed by the base component; a surface of the second external electrical connection portion of the second conductive element is perpendicular to the main axis or parallel; the second external electrical connection portion is configured to electrically connect to an external circuit; the second external electrical connection portion is exposed from the base component; the surface of the first external electrical connection portion is parallel to the surface of the second external electrical connection portion ; The surface of the first external electrical connection part and the surface of the second external electrical connection part are coplanar; a surface of the first external electrical connection part facing the first coil and the first internal electrical connection part face the third The surfaces of a coil are located in different planes; a surface of a second internal electrical connection part of the second conductive element is perpendicular or parallel to the main axis; the second internal electrical connection part is configured to electrically connect the electronic component; the second internal electrical connection part is The connection part is exposed from the base component; the second conductive element has a second cross-section, and the second cross-section has a polygonal structure; the surface of the first internal electrical connection part is parallel to the surface of the second internal electrical connection part; the first internal electrical connection part The surface of the connecting part is coplanar with the surface of the second internal electrical connection part; the third conductive element has a plate-like structure; the third conductive element has a metal material; at least a part of the third conductive element is buried and not exposed by the base component; the third A surface of a third external electrical connection part of one of the conductive elements is perpendicular or parallel to the main axis; the third external electrical connection part is configured to electrically connect to an external circuit; the third external electrical connection part is exposed from the base component; the third conductive part A surface of the third internal electrical connection part of one of the components is perpendicular or parallel to the main axis; the third internal electrical connection part is configured to electrically connect the second coil; the third internal electrical connection part is exposed from the base component; the third internal The surface of the electrical connection part is coplanar with the surface of the first internal electrical connection part; the wireless transmission module further includes: a second reinforcing element, directly contacting the second internal electrical connection part; a third reinforcing element, directly contacting the second internal electrical connection part; Contacting the third internal electrical connection part; and a fourth reinforcing element directly contacting the first external electrical connection part. The second reinforcing element is made of non-metallic material; the third reinforcing element is made of non-metallic material; the first reinforcing element and the fourth reinforcing element have an integrally formed structure; the electronic component is arranged in a receiving portion of the base component; the receiving portion has a recessed structure and is located The first base surface; the wireless transmission module further includes a first protection element disposed on the first coil; the first protection element further includes an opening corresponding to the receiving portion; when viewed along the first direction, the electronic component At least a part of it is exposed by the opening; at least a part of the first coil is exposed by the receiving part; on the main axis, the maximum size of the first induction body of one of the first coils is different from the maximum size of the base component; on the main axis, the first induction body of the first coil is exposed The maximum dimension is smaller than the maximum dimension of the base component; on the main axis, the maximum dimension of the first sensing body is smaller than one-third of the maximum dimension of the base component.

According to some embodiments of the present disclosure, the wireless transmission module further includes a second coil disposed on the base component; the base component further includes: a first sensing part corresponding to the first coil and having a first characteristic function; and a first Two induction parts correspond to the second coil and have a second characteristic function. When viewed along the main axis, the first induction part overlaps with at least a part of the first coil; when viewed along the main axis, the second induction part overlaps with at least a part of the second coil; corresponding to an electromagnetic wave of a first frequency, the 1. The second characteristic function is different; the base component further includes a second magnetically conductive part, which is made of a different material from the first magnetically conductive part; when viewed along the main axis, the second magnetically conductive part is at least the same as the first coil or the second coil. One overlaps; the first induction part covers a part of the first magnetic conductive part; the second induction part covers a part of the second magnetic conductive part; when viewed along the main axis, at least one of the second magnetic conductive part and the first magnetic conductive part A portion overlaps; when viewed along the direction perpendicular to the main axis, the second magnetic conductive part does not overlap with the first magnetic conductive part; on the main axis, the maximum size of the first sensing part is different from the maximum size of the second sensing part; 1. The external circuit includes an accommodation space configured to accommodate at least a portion of the base component; the accommodation space has an opening structure; when viewed along a direction perpendicular to the main axis, the external circuit overlaps with at least a portion of the base component; when viewed along the direction of the main axis When the external circuit overlaps at least a portion of the base component.

According to some embodiments of the present disclosure, when viewed in a direction perpendicular to the main axis, the external circuit overlaps at least a portion of the first magnetic conductive portion; when viewed in a direction perpendicular to the main axis, at least a portion of the external circuit and the first coil overlaps. A portion overlaps; when viewed in a direction perpendicular to the main axis, the external circuit overlaps at least a portion of the second coil; the base component defines a first overlapping portion, and when viewed in a direction perpendicular to the main axis, the external circuit overlaps with the third coil An overlapping portion overlaps; when viewed along the main axis, the external circuit does not overlap with the first overlapping portion; when viewed along the main axis, there is a gap between the first overlapping portion and the external circuit.

According to some embodiments of the present disclosure, when viewed along a direction perpendicular to the main axis, the external circuit does not overlap with the first coil; when viewed along the main axis, the external circuit does not overlap with the first coil; when viewed along the main axis, The external circuit overlaps with at least a portion of the second coil; when viewed along a direction perpendicular to the main axis, the external circuit overlaps with at least a portion of the second magnetic conductive portion.

According to some embodiments of the present disclosure, the base component defines a first overlapping portion, a second overlapping portion and a third overlapping portion; when viewed along a direction perpendicular to the main axis, the external circuit overlaps the first overlapping portion; when viewed along a direction perpendicular to the main axis, When viewed along the main axis, the external circuit does not overlap with the first overlapping portion; when viewed along the main axis, the external circuit does not overlap with the second overlapping portion; when viewed along the direction perpendicular to the main axis, the external circuit does not overlap with the second overlapping portion. Overlap; when viewed along the main axis, the external circuit overlaps with the third overlapping portion; when viewed along the direction perpendicular to the main axis, the external circuit does not overlap with the third overlapping portion; when viewed along the direction perpendicular to the main axis, The external circuit is located between the second overlapping part and the third overlapping part; the first overlapping part, the second overlapping part and the third overlapping part have an integrally formed structure; the first overlapping part contacts the external circuit.

The present disclosure proposes a wireless transmission module for transmitting energy or signals, including a base component and at least one coil. The coil is arranged in the base component, and the base component is composed of a plurality of magnetic conductive elements. After being heated and pressurized, these magnetically permeable elements will be connected to each other, so that the base assembly forms a solid plate-like structure, and the coil can be firmly fixed in the base assembly.

Based on the design of the wireless transmission module disclosed in this disclosure, the coil can be fixed in the base component without the use of glue or tape. Therefore, the mechanical strength, usage efficiency, charging efficiency, heat dissipation efficiency, and overall miniaturization can be improved. Overall lightweight and reduction of electromagnetic interference, etc.

Many different implementation methods or examples are disclosed below to implement different features of the provided subject matter, and examples of specific elements and their arrangements are described below to illustrate the present disclosure. Of course, these embodiments are only for illustration and do not limit the scope of the present disclosure. For example, it is mentioned in the description that the first feature component is formed on the second feature component, which may include an embodiment in which the first feature component is in direct contact with the second feature component, or may also include an embodiment where the first feature component is in direct contact with the second feature component. There are other embodiments with other features between the second feature component, in other words, the first feature component and the second feature component are not in direct contact.

In addition, repeated numbers or designations may be used in different embodiments. These repetitions are only for the purpose of describing the present disclosure simply and clearly, and do not represent a specific relationship between the different embodiments and/or structures discussed. Additionally, forming on, connecting to, and/or coupling to another feature in the present disclosure may include embodiments in which the feature is formed in direct contact, and may also include embodiments in which the feature may be formed in direct contact. Embodiments of additional features of features such that said features may not be in direct contact. In addition, words related to space may be used, such as "vertical", "above", "upper", "lower", "bottom" and similar words (such as "downwardly", "upwardly", etc. ), these spatially relative terms are used to facilitate describing the relationship between one element or feature(s) in the illustrations and another element or feature(s), and these spatially relative terms are intended to encompass different orientations of the device including the features. .

Unless otherwise defined, all terms (including technical and scientific terms) used herein 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 terms defined in commonly used dictionaries, should be interpreted to have a meaning consistent with the relevant technology and the background or context of the present disclosure, and should not be interpreted in an idealized or overly formal manner. Interpretation, unless otherwise defined herein.

Furthermore, the ordinal numbers used in the specification and claims, such as "first", "second", etc., are used to modify the elements of the claim. They themselves do not imply or represent that the claim element has any previous ordinal number, nor do they mean that the claim element has any previous ordinal number. It does not represent the order of a certain request component and another request component, or the order in the manufacturing method. The use of equal ordinal numbers is only used to make one request component with a certain name clear from another request component with the same name. Distinguish.

In addition, in some embodiments of the present disclosure, terms related to joining and connecting, such as "connection", "interconnection", etc., unless otherwise defined, may mean that two structures are in direct contact, or may also mean that the two structures are not in direct contact. Contact, where other structures are located between the two structures. And the terms about joining and connecting can also include the situation where both structures are movable, or both structures are fixed.

Please refer to Figure 1 , which is a schematic cross-sectional view of a wireless transmission module 100 and an electronic module 200 according to an embodiment of the present disclosure. The wireless transmission module 100 is a wireless transmission module that can be used to transmit energy or signals, and the electronic module 200 is, for example, an electronic device having a coil 202 . As shown in FIG. 1 , the wireless transmission module 100 corresponds to the electronic module 200 and is configured to transmit a first signal, where the first signal may be a charging signal, for example. In this embodiment, the wireless transmission module 100 may include a base component 102 and a first coil 104, and the first coil 104 is disposed on the base component 102.

In this embodiment, the first coil 104 can be used as a charging coil for wirelessly charging an external device. For example, the first coil 104 can be a resonant charging coil based on the Alliance for Wireless Power (A4WP) standard, but is not limited thereto. In addition, the first coil 104 may be based on the Wireless Power Consortium (WPC) standard, such as the Qi standard, and serve as an inductive charging coil. Therefore, this implementation can enable the first coil 104 to handle different forms of charging methods at the same time, thereby increasing the applicable range. For example, at short distances (for example, less than 1cm), inductive operation is used; while at long distances, resonance operation is used.

In this embodiment, the first coil 104 can also be used as a communication coil, for example, operating in a Near Field Communication (NFC) mode to communicate with an external electronic device (such as the coil 202 of the electronic module 200 ). .

As shown in Figure 1, the wireless transmission module 100 can define a corresponding surface ICS, facing the electronic module 200 and perpendicular to a main axis AX. The main axis AX is, for example, the winding axis of the first coil 104, but is not limited thereto. The first coil 104 overlaps at least a portion of the base assembly 102 when viewed along the main axis AX. When viewed along a direction perpendicular to the main axis AX, the first coil 104 overlaps at least a portion of the base assembly 102 .

The base component 102 may include a first base surface 102S1 and a second base surface 102S2. The first base surface 102S1 faces the electronic module 200, and the first base surface 102S1 and the second base surface 102S2 face different directions. In this embodiment, the corresponding surface ICS is an imaginary surface that completely overlaps the first substrate surface 102S1 (plane). It should be noted that when the first substrate surface 102S1 is non-planar, the corresponding surface ICS is also correspondingly non-planar, such as a curved surface.

Please refer to Figures 1 and 2. Figure 2 is an enlarged structural view of the base component 102 before pressure and heating according to an embodiment of the present disclosure. In this embodiment, the base component 102 includes a first magnetically conductive portion 1021 with a first magnetically conductive material. For example, the first magnetic conductive material may include iron element, silicon element or chromium element. That is, the base component 102 may include iron element, the base component 102 may include silicon element, and the base component 102 may include chromium element.

As shown in FIG. 2 , the first magnetic conductive part 1021 of the base component 102 includes a plurality of first magnetic conductive elements MCE1 , where the first magnetic conductive elements MCE1 can be in the form of powder or sheet. The maximum diameter of these first magnetic conductive elements MCE1 is less than 0.05mm. Furthermore, the wireless transmission module 100 further includes a first connecting element AE1 configured to connect the first magnetic conductive elements MCE1. Specifically, as shown in FIG. 2 , each first magnetic conductive element MCE1 is surrounded by a first connecting element AE1 .

Next, please refer to Figures 2 and 3. Figure 3 is an enlarged structural view of the base component 102 after pressure and heating according to an embodiment of the present disclosure. As shown in Figure 3, after pressure and heating, the first connecting element AE1 will melt to connect the first magnetic conductive elements MCE1 together. That is to say, the first connecting element AE1 is in direct contact with the first magnetic conductive elements MCE1.

Furthermore, the melted first connecting element AE1 will also directly contact the first coil 104, so that the first coil 104 is fixedly connected to the first magnetic conductive elements MCE1 through the first connecting element AE1. In this embodiment, the melting point of the first connecting element AE1 is higher than 70 degrees Celsius, and the melting point of the first connecting element AE1 is lower than 400 degrees Celsius, but is not limited thereto.

In addition, in this embodiment, the base component 102 may further include a second magnetic conductive part 1022 connected to the first magnetic conductive part 1021, and the second magnetic conductive part 1022 and the first magnetic conductive part 1021 are made of different materials. For example, the second magnetic conductive part 1022 is composed of a plurality of second magnetic conductive elements of different materials. For example, the first magnetically permeable element can be made of iron, and the second magnetically permeable element can be made of chromium. Similar to the first magnetic conductive part 1021, these second magnetic conductive elements can be connected by a second connecting element, so their configuration will not be described in detail.

As shown in FIG. 1 , when viewed along a first direction D1 , the base component 102 covers at least a portion of the first coil 104 . The first direction D1 is opposite to the direction D2 facing the corresponding surface ICS. The base component 102 may include at least one supporting part STP and at least one covering part CVP. The supporting portion STP is configured to support the first coil 104 , and the covering portion CVP is configured to cover a portion of the first coil 104 .

When viewed along the direction perpendicular to the main axis AX (for example, the Y-axis), the first coil 104 is located between the support part STP and the electronic module 200 . When viewed along the main axis AX, the first coil 104 overlaps at least a portion of the support portion STP.

When viewed along the first direction D1, at least a portion of the covering portion CVP overlaps the first coil 104. When viewed along a direction perpendicular to the main axis AX (eg, the X-axis), at least a portion of the covering portion CVP overlaps the first coil 104 . When viewed along the direction perpendicular to the main axis AX, the center 104C of the first coil 104 is located between the covering part CVP and the supporting part STP on the main axis AX.

Please refer to Figures 4 and 5. Figure 4 is a schematic cross-sectional view of a wireless transmission module 100A according to another embodiment of the present disclosure, and Figure 5 is a schematic cross-sectional view of a wireless transmission module 100A according to another embodiment of the present disclosure. Side view. Similar to the previous embodiment, the wireless transmission module 100A has a first magnetic conductive part 1021 and a second magnetic conductive part 1022.

As shown in FIG. 4 , the second magnetic conductive part 1022 has a U-shaped structure surrounding the first magnetic conductive part 1021 . Furthermore, the wireless transmission module 100A of this embodiment further includes a second coil 106 disposed in the second magnetic conductive portion 1022 of the base component 102 . When viewed along the direction perpendicular to the main axis AX, the second magnetic conductive portion 1022 overlaps at least a portion of the first magnetic conductive portion 1021 .

In this embodiment, the first coil 104 includes a first lead WR1 and a reinforcing element GU, and the second coil 106 includes a second lead WR2. The first lead WR1 and the second lead WR2 are located on one of the first sidewall surfaces 102S3 of the base component 102, and the enhancement element GU is disposed on the first lead WR1 and the second lead WR2.

The first side wall surface 102S3 is parallel to the main axis AX. The first lead WR1 passes through a first opening OP1 of the first sidewall surface 102S3, and the second lead WR2 passes through a second opening OP2 of the first sidewall surface 102S3. The first opening OP1 and the second opening OP2 have a closed structure. That is, as shown in FIG. 5 , the outlines of the first opening OP1 and the second opening OP2 are closed.

In this embodiment, the reinforcing element GU directly contacts the first opening OP1 and the second opening OP2. The reinforcing element GU is made of non-metallic material. The reinforcing element GU is, for example, glue, but is not limited thereto. The reinforcing element GU can avoid the problem that the first lead WR1 and the second lead WR2 are easily broken.

As shown in FIG. 4 , on the main axis AX, the shortest distance between the first coil 104 and the corresponding surface ICS is different from the shortest distance between the first lead WR1 and the corresponding surface ICS. For example, on the main axis AX, the shortest distance between the first coil 104 and the corresponding surface ICS is smaller than the shortest distance between the first lead WR1 and the corresponding surface ICS.

Similarly, the base assembly 102 includes a first base surface 102S1 facing an electronic module (not shown in the figure), and the first base surface 102S1 and the first side wall surface 102S3 are not parallel.

Furthermore, the base component 102 may further include at least a first structural strengthening part 1023 configured to strengthen the mechanical structure of the base component 102. The first structural reinforcement part 1023 is located between the first base surface 102S1 and the first side wall surface 102S3. The first structural reinforcement part 1023 is, for example, a surface (inclined surface) that is not parallel to the first base surface 102S1 and the first side wall surface 102S3.

In this embodiment, the angle between the surface of the first structural reinforcement part 1023 and the first base surface 102S1 is greater than 15 degrees, and the angle between the surface of the first structural reinforcement part 1023 and the first side wall surface 102S3 is greater than 15 degrees, but is not limited to this. In other embodiments, the first structural reinforcement part 1023 is, for example, a curved surface with a curvature radius greater than 0.05 mm.

Similarly, the second substrate surface 102S2 and the first substrate surface 102S1 face opposite directions. Furthermore, the base component 102 may further include at least a second structural strengthening portion 1024 configured to strengthen the mechanical structure of the base component 102 . The second structural reinforcement 1024 is located between the second base surface 102S2 and the first sidewall surface 102S3.

The surface of the second structural reinforcement part 1024 is not parallel to the second base surface 102S2 and the first side wall surface 102S3. When viewed along the main axis AX, the first structural reinforcement portion 1023 overlaps at least a portion of the second structural reinforcement portion 1024 .

In this embodiment, the structure of the second structural strengthening part 1024 is different from the structure of the first structural strengthening part 1023. Specifically, the surface of the second structural reinforcement part 1024 is a curved surface with a curvature radius greater than 0.05 mm, but is not limited thereto. In other embodiments, the second structural reinforcement part 1024 may also be a plane, and the angle between the plane and the second base surface 102S2 and the angle between the plane and the first side wall surface 102S3 are both greater than 15 degrees.

In this embodiment, the second coil 106 and the first coil 104 are electrically independent. One of the first coil 104 and the second coil 106 is configured to transmit a first signal (eg, a charging signal), and the other is configured to transmit a second signal (eg, a communication signal). The second coil 106 overlaps at least a portion of the first coil 104 when viewed along a direction perpendicular to the main axis AX (eg, the X-axis).

Next, please refer to Figure 6 , which is a schematic cross-sectional view of a wireless transmission module 100B according to another embodiment of the present disclosure. In this embodiment, the wireless transmission module 100B may further include a first protection element 110 disposed on the first coil 104 and the second coil 106 . The first protective element 110 may be double-sided tape, for example, made of polyethylene terephthalate (PET), but is not limited thereto.

The first protection element 110 has a plate-like structure and directly contacts the first substrate surface 102S1. The first protection element 110 directly contacts the first coil 104 and the second coil 106 . The first protection element 110 may include a first connecting portion 112 configured to be connected to the first coil 104 and the second coil 106 .

Furthermore, the first bonding portion 112 is bonded to the first base surface 102S1, and the first bonding portion 112 is bonded to the covering portion CVP. When viewed along the direction perpendicular to the main axis AX, the first coil 104 is located between the support part STP and the first protection element 110 .

The first protection element 110 further includes a first body 111, and the first connecting portion 112 is disposed on the first body 111. The first protection component 110 further includes a second connecting portion 113 configured to be connected to a first external component (not shown in the figure). The first body 111 is located between the first connecting portion 112 and the second connecting portion 113 , and the first external component is a casing of an electronic device. The electronic device may be, for example, a smart phone, and the housing may be, for example, the back cover of the smart phone, but is not limited thereto.

Similar to the previous embodiments, the base component 102 also includes a first structural strengthening portion 1023 configured to strengthen the mechanical structure of the base component 102 . When viewed along the main axis AX, the first protective element 110 overlaps at least a portion of the first structural reinforcement 1023 . For example, the first connecting part 112 is connected to the first structural strengthening part 1023 .

Furthermore, the wireless transmission module 100 may further include a second protection element 120 disposed on the second substrate surface 102S2. Similar to the first protection element 110, the second protection element 120 has a plate-like structure. When viewed along the direction perpendicular to the main axis AX, the support portion STP is located between the first coil 104 and the second protection element 120 .

The second protection element 120 includes a third bonding portion 122 configured to bond to the second substrate surface 102S2. The second protection element 120 further includes a second body 121, and the third connecting portion 122 is disposed on the second body 121. The second protection component 120 further includes a fourth connecting portion 123 configured to be connected to a second external component, and the second body 121 is located between the third connecting portion 122 and the fourth connecting portion 123 .

The second external component is a circuit component of the electronic device. For example, the electronic device is a smartphone, and the circuit component can be a circuit board of the smartphone, but is not limited thereto.

Similarly, the base component 102 also includes a second structural strengthening portion 1024 configured to strengthen the mechanical structure of the base component 102 . The second protective element 120 overlaps at least a portion of the second structural reinforcement 1024 when viewed along the main axis AX. For example, the third connecting part 122 is connected to the second structural strengthening part 1024.

It is worth noting that in this embodiment, the first protection element 110 directly contacts the second protection element 120 . Specifically, the first bonding part 112 is bonded to the third bonding part 122 .

In addition, in this embodiment, the base component 102 may further include at least a first trench TR1, at least a second trench TR2, and at least a third trench TR3. The first trench TR1 is located on the second substrate surface 102S2, the second trench TR2 is located on the second substrate surface 102S2, and the third trench TR3 is located on the second substrate surface 102S2.

As shown in FIG. 6 , the third connecting portion 122 corresponds to the first trench TR1 , and the first trench TR1 extends to the first coil 104 . When viewed along the direction perpendicular to the main axis AX, the first trench TR1 does not overlap the first coil 104 . The first trench TR1 overlaps at least a portion of the first coil 104 when viewed along the main axis AX.

When viewed along the direction perpendicular to the main axis AX, the second trench TR2 overlaps at least a portion of the first coil 104 . The second trench TR2 is located on the first substrate surface 102S1, the first connecting portion 112 corresponds to the second trench TR2, and the third connecting portion 122 corresponds to the second trench TR2. Specifically, the first connecting portion 112 and the third connecting portion 122 are configured to adhere to the first magnetic conductive portion 1021 on both sides of the second trench TR2.

On the spindle AX, the maximum size of the first groove TR1 is different from the maximum size of the second groove TR2. For example, on the spindle AX, the maximum size of the first groove TR1 is smaller than the maximum size of the second groove TR2.

When viewed along the direction perpendicular to the main axis AX, the third trench TR3 does not overlap the second coil 106 . The third trench TR3 overlaps at least a portion of the second coil 106 when viewed along the main axis AX. The third connecting portion 122 corresponds to the third trench TR3. On the spindle AX, the maximum size of the third groove TR3 is smaller than the maximum size of the second groove TR2.

Based on the structural design of the first trench TR1 , the second trench TR2 and the third trench TR3 in this embodiment, the heat dissipation efficiency of the base component 102 can be improved, and the base component 102 can also be made flexible.

Please refer to Figure 7 , which is a schematic cross-sectional view of a wireless transmission module 100C according to another embodiment of the present disclosure. In this embodiment, the wireless transmission module 100C may further include at least a first conductive element 130, and the first coil 104 is electrically connected to an external circuit through the first conductive element 130. The external circuit is, for example, the circuit board of the aforementioned smart phone, but is not limited thereto.

As shown in FIG. 7 , the first conductive element 130 has a plate-like structure, and the first conductive element 130 is made of metal material. At least a portion of the first conductive element 130 is buried and not exposed by the base component 102 .

Furthermore, the surface of the first external electrical connection portion 131 of the first conductive element 130 is perpendicular or parallel to the main axis AX. For example, surface 1311 is perpendicular to the main axis AX. The first external electrical connection part 131 is configured to electrically connect the external circuit. A portion of the first external electrical connection portion 131 (for example, the surface 1311 ) is exposed from the base component 102 .

Similarly, the surface of the first internal electrical connection portion 132 is perpendicular or parallel to the main axis AX. For example, surface 1322 is perpendicular to principal axis AX. The first internal electrical connection portion 132 is configured to electrically connect the first coil 104 .

The first internal electrical connection portion 132 is exposed from the base component 102 through a through hole PR1. Furthermore, the wireless transmission module 100C may further include a first reinforcing element EF1, which is disposed in the through hole PR1 and directly contacts the first internal electrical connection part 132. The first reinforcing element EF1 may be glue, for example, but is not limited thereto.

As shown in FIG. 7 , the first conductor 1041 of the first coil 104 has a first cross section, the first conductive element 130 has a second cross section, and the first cross section and the second cross section have different structures. For example, the first cross section has an arc structure, and the second cross section has a polygonal structure (rectangular structure).

In addition, it should be noted that in other embodiments, the base component 102 may not include the through hole PR1 , which means that the first internal electrical connection portion 132 is buried and not exposed by the base component 102 .

The wireless transmission module 100C further includes an electronic component 170, at least a second conductive component 140 and at least a third conductive component 150. The electronic component 170 may be, for example, a temperature sensor or a magnetic sensor, which is disposed on the base component 102 . The electronic component 170 may be electrically connected to the external circuit via the second conductive component 140 , and the second coil 106 is electrically connected to the external circuit via the third conductive component 150 .

Similarly, the second conductive element 140 has a plate-like structure, and the second conductive element 140 has a metal material. At least a portion of the second conductive element 140 is buried and not exposed by the base component 102 .

Furthermore, the surface of the second external electrical connection portion 141 of the second conductive element 140 is perpendicular or parallel to the main axis AX. For example, surface 1411 is perpendicular to the main axis AX. The second external electrical connection part 141 is configured to electrically connect to an external circuit. A portion of the second external electrical connection portion 141 (for example, the surface 1411 ) is exposed from the base component 102 .

As shown in FIG. 7 , the surface 1311 of the first external electrical connection part 131 is parallel to the surface 1411 of the second external electrical connection part 141 . In this embodiment, the surface 1311 of the first external electrical connection part 131 and the surface 1411 of the second external electrical connection part 141 are coplanar.

In addition, the surface 1312 of the first external electrical connection part 131 facing the first coil 104 and the surface 1322 of the first internal electrical connection part 132 facing the first coil 104 are located on different planes.

As shown in FIG. 7 , the surface of the second internal electrical connection portion 142 of the second conductive element 140 is perpendicular or parallel to the main axis AX. For example, surface 1422 is perpendicular to main axis AX. The second internal electrical connection portion 142 is configured to be electrically connected to the electronic component 170 , and the second internal electrical connection portion 142 is exposed from the base component 102 .

The second conductive element 140 has a second cross-section, and the second cross-section has a polygonal structure (rectangular structure). The surface 1322 of the first internal electrical connection portion 132 is parallel to the surface 1422 of the second internal electrical connection portion 142 . In this embodiment, the surface 1322 of the first internal electrical connection portion 132 and the surface 1422 of the second internal electrical connection portion 142 are coplanar.

Similarly, the third conductive element 150 has a plate-like structure, and the third conductive element 150 has a metal material. At least a portion of the third conductive element 150 is buried and not exposed by the base component 102 .

Furthermore, the surface of the third external electrical connection portion 151 of the third conductive element 150 is perpendicular or parallel to the main axis AX. For example, surface 1511 is perpendicular to the main axis AX. The third external electrical connection part 151 is configured to electrically connect to an external circuit. A portion of the third external electrical connection portion 151 (for example, the surface 1511 ) is exposed from the base component 102 .

The surface of the third internal electrical connection portion 152 of the third conductive element 150 is perpendicular or parallel to the main axis AX. For example, the surface 1522 is perpendicular to the main axis AX. Furthermore, the third internal electrical connection portion 152 is configured to electrically connect the second coil 106 . Specifically, a lead 1061 of the second coil 106 is configured to contact the surface 1522 of the third conductive element 150 . In addition, the surface 1522 of the third internal electrical connection portion 152 is coplanar with the surface 1322 of the first internal electrical connection portion 132 .

Similarly, the third internal electrical connection portion 152 can be exposed from the base component 102 through a through hole PR3. Furthermore, the wireless transmission module 100C may further include a third reinforcing element EF3, which is disposed in the through hole PR3 and directly contacts the third internal electrical connection portion 152. The third reinforcing element EF3 may be glue, for example, but is not limited thereto.

Similarly, the second internal electrical connection portion 142 can be exposed from the base component 102 through a through hole PR2. Furthermore, the wireless transmission module 100C may further include a second reinforcing element EF2, which is disposed in the through hole PR2 and directly contacts the second internal electrical connection part 142. The second reinforcing element EF2 may be glue, for example, but is not limited thereto.

In addition, the wireless transmission module 100 may further include a fourth reinforcing element EF4, which is disposed at the bottom of the base component 102 and directly contacts the first external electrical connection part 131. Among them, the second reinforcing element EF2 is made of non-metallic material, the third reinforcing element EF3 is made of non-metallic material, and the first reinforcing element EF1 and the fourth reinforcing element EF4 have an integrally formed structure.

As shown in FIG. 7 , the electronic component 170 is disposed in a receiving portion 102R of the base component 102 , and the receiving portion 102R has a recessed structure and is located on the first base surface 102S1 . The first protection element 110 further includes an opening 110H corresponding to the receiving portion 102R.

When viewed along the first direction D1, at least a portion of the electronic component 170 is exposed through the opening 110H. In addition, at least part of the first coil 104 is exposed from the accommodating portion 102R. Specifically, the first coil 104 can be exposed from the side of the receiving portion 102R, so that the first coil 104 can be positioned by a mold (not shown in the figure).

On the main axis AX, the maximum size of the first induction body 1040 of the first coil 104 (excluding the first wire 1041 ) is different from the maximum size of the base assembly 102 . On the main axis AX, the maximum dimension of the first sensing body 1040 is smaller than the maximum dimension of the base assembly 102 . On the main axis AX, the maximum dimension of the first sensing body 1040 is less than one third of the maximum dimension of the base assembly 102 .

Next, please refer to Figure 8, which is a three-dimensional schematic diagram of a wireless transmission module 100D and an external circuit 300 according to another embodiment of the present disclosure. Similar to the previous embodiment, the base component 102 of the wireless transmission module 100D includes a first magnetic conductive part 1021 and a second magnetic conductive part 1022, and the second magnetic conductive part 1022 and the first magnetic conductive part 1021 are made of different materials.

Please refer to Figure 9 , which is a schematic cross-sectional view of a wireless transmission module 100D and an external circuit 300 according to another embodiment of the present disclosure. The external circuit 300 is, for example, the aforementioned circuit board, and the external circuit 300 may include a receiving space 300R configured to receive at least a portion of the base assembly 102 . Specifically, the accommodation space 300R has an opening structure, and the second magnetic conductive part 1022 is disposed in the accommodation space 300R.

As shown in FIG. 9 , when viewed along a direction perpendicular to the main axis AX, the external circuit 300 overlaps at least a portion of the base component 102 . In addition, when viewed along the direction of the main axis AX (X-axis), the external circuit 300 overlaps at least a portion of the base component 102 .

When viewed along the direction perpendicular to the main axis AX, the external circuit 300 does not overlap the first coil 104 . The external circuit 300 does not overlap the first coil 104 when viewed along the main axis AX. The external circuit 300 overlaps at least a portion of the second coil 106 when viewed along the main axis AX. When viewed along the direction perpendicular to the main axis AX, the external circuit 300 overlaps with at least a portion of the second magnetic conductive portion 1022 .

In this embodiment, the base component 102 may further include a first sensing part ITP1 and a second sensing part ITP2. The first sensing part ITP1 corresponds to the first coil 104 and has a first characteristic function, and the second sensing part ITP2 corresponds to the second coil 106 and has a second characteristic function. The first and second characteristic functions are magnetic permeability functions or magnetic loss rate functions for specific electromagnetic waves, etc.

It should be noted that when corresponding to an electromagnetic wave of a specific frequency (first frequency), the first and second characteristic functions will be different.

As shown in FIG. 9 , when viewed along the main axis AX, the first induction part ITP1 overlaps with at least a part of the first coil 104 , and when viewed along the main axis AX, the second induction part ITP2 overlaps with the second coil 106 At least some overlap.

When viewed along the main axis AX, the second magnetic conductive portion 1022 overlaps with at least one of the first coil 104 or the second coil 106 . For example, the second magnetic conductive part 1022 overlaps the first coil 104, and the second magnetic conductive part 1022 does not overlap the second coil 106.

In addition, as shown in FIG. 9 , in this embodiment, the first sensing part ITP1 covers a part of the first magnetic conductive part 1021 , and the second sensing part ITP2 covers a part of the first magnetic conductive part 1021 .

When viewed along the main axis AX, the second magnetic conductive part 1022 overlaps at least a part of the first magnetic conductive part 1021, but is not limited thereto. In other embodiments, the second magnetic conductive part 1022 may not overlap the first magnetic conductive part 1021. For example, the second magnetic conductive part 1022 may surround the first magnetic conductive part 1021 and be located on the same plane as the first magnetic conductive part 1021 .

In this embodiment, when viewed along the direction perpendicular to the main axis AX, the second magnetic conductive part 1022 does not overlap the first magnetic conductive part 1021. Furthermore, on the spindle AX, the maximum size of the first sensing part ITP1 is different from the maximum size of the second sensing part ITP2. For example, the maximum size of the first sensing part ITP1 is larger than the maximum size of the second sensing part ITP2.

Next, please refer to Figure 10. Figure 10 is a schematic cross-sectional view of a wireless transmission module 100E and an external circuit 300 according to another embodiment of the present disclosure. Similar to the previous embodiment, the base component 102 of the wireless transmission module 100E includes a first magnetic conductive part 1021 and a second magnetic conductive part 1022, and the second magnetic conductive part 1022 and the first magnetic conductive part 1021 are made of different materials.

When viewed along the direction perpendicular to the main axis AX (X-axis), the external circuit 300 overlaps with at least a portion of the first magnetic conductive portion 1021 . The external circuit 300 overlaps at least a portion of the first coil 104 when viewed along a direction perpendicular to the main axis AX. The external circuit 300 overlaps at least a portion of the second coil 106 when viewed along a direction perpendicular to the main axis AX.

In this embodiment, the base component 102 may define a first overlapping portion OVP1. When viewed along the direction perpendicular to the main axis AX, the external circuit 300 overlaps the first overlapping portion OVP1. When viewed along the main axis AX, the external circuit 300 does not overlap the first overlapping portion OVP1.

When viewed along the main axis AX, there is a gap between the first overlapping portion OVP1 and the external circuit 300. Based on this structural design, the efficiency of the operator in installing the wireless transmission module 100E can be increased.

Similarly, the base component 102 includes a first sensing part ITP1 and a second sensing part ITP2. In this embodiment, the first sensing part ITP1 covers a part of the first magnetic conductive part 1021, and the second sensing part ITP2 covers a part of the second magnetic conductive part 1022.

Next, please refer to Figure 11. Figure 11 is a schematic cross-sectional view of a wireless transmission module 100F and an external circuit 300 according to another embodiment of the present disclosure. Similar to the previous embodiment, the base component 102 of the wireless transmission module 100F includes a first magnetic conductive part 1021 and a second magnetic conductive part 1022, and the second magnetic conductive part 1022 and the first magnetic conductive part 1021 are made of different materials.

As shown in FIG. 11 , the base component 102 defines a first overlapping portion OVP1, a second overlapping portion OVP2, and a third overlapping portion OVP3. When viewed along the direction perpendicular to the main axis AX (X-axis), the external circuit 300 overlaps the first overlapping portion OVP1. When viewed along the main axis AX, the external circuit 300 does not overlap the first overlapping portion OVP1.

When viewed along the main axis AX, the external circuit 300 overlaps the second overlapping portion OVP2. When viewed along the direction perpendicular to the main axis AX, the external circuit 300 does not overlap with the second overlapping portion OVP2.

When viewed along the main axis AX, the external circuit 300 overlaps the third overlapping portion OVP3. When viewed along the direction perpendicular to the main axis AX, the external circuit 300 does not overlap with the third overlapping portion OVP3. When viewed along the direction perpendicular to the main axis AX, the external circuit 300 is located between the second overlapping portion OVP2 and the third overlapping portion OVP3.

In this embodiment, the first overlapping part OVP1, the second overlapping part OVP2 and the third overlapping part OVP3 have an integrally formed structure. That is to say, the first overlapping portion OVP1, the second overlapping portion OVP2, and the third overlapping portion OVP3 do not need to be connected by adhesion or welding.

In addition, it should be noted that the first overlapping portion OVP1 of this embodiment will contact the external circuit 300 . Based on this structural design, it can be ensured that the wireless transmission module 100F can be tightly connected to the external circuit 300 .

The present disclosure proposes a wireless transmission module for transmitting energy or signals, including a base component and at least one coil. The coil is arranged in the base component, and the base component is composed of a plurality of magnetic conductive elements. After being heated and pressurized, these magnetically permeable elements will be connected to each other, so that the base assembly forms a solid plate-like structure, and the coil can be firmly fixed in the base assembly.

Based on the design of the wireless transmission module disclosed in this disclosure, the coil can be fixed in the base component without the use of glue or tape. Therefore, the mechanical strength, usage efficiency, charging efficiency, heat dissipation efficiency, and overall miniaturization can be improved. Overall lightweight and reduction of electromagnetic interference, etc.

The ordinal numbers in this specification and the scope of the patent application, such as "first", "second", "third", etc., have no sequential relationship with each other. They are only used to distinguish two items with the same Different components with names.

Although the embodiments and their advantages of the present disclosure have been disclosed above, it should be understood that anyone with ordinary skill in the art can make changes, substitutions and modifications without departing from the spirit and scope of the present disclosure. In addition, the protection scope of the present disclosure is not limited to the processes, machines, manufacturing, material compositions, devices, methods and steps in the specific embodiments described in the specification. Anyone with ordinary knowledge in the relevant technical field can learn from the disclosure It is understood that processes, machines, manufacturing, material compositions, devices, methods and steps currently or developed in the future can be used according to the present disclosure as long as they can perform substantially the same functions or obtain substantially the same results in the embodiments described herein. Therefore, the protection scope of the present disclosure includes the above-mentioned processes, machines, manufacturing, material compositions, devices, methods and steps. In addition, each claimed patent scope constitutes an individual embodiment, and the protection scope of the present disclosure also includes the combination of each claimed patent scope and embodiments.

100:Wireless transmission module 100A~100F: Wireless transmission module 102: Base component 1021: The first magnetic conductive part 1022: The second magnetic conductive part 1023:First Structural Strengthening Department 1024:Second Structural Strengthening Department 102R: Accommodation Department 102S1: First substrate surface 102S2: Second substrate surface 102S3: First side wall surface 104:First coil 1040: The first sensing body 1041: First wire 104C: Center 106:Second coil 1061:Lead 110: First protection element 110H:Open your mouth 111:First body 112:The first part 113:The second part 120: Second protection element 121:Second body 122:The third part 123:The fourth part continues 131: First external electrical connection part 1311:Surface 1312:Surface 132: First internal electrical connection part 1322:Surface 140: Second conductive element 141: Second external electrical connection part 1411:Surface 142: Second internal electrical connection part 1422:Surface 150:Third conductive element 151: The third external electrical connection part 1511:Surface 152: The third internal electrical connection part 1522:Surface 170:Electronic components 200: Electronic modules 202:Coil 300:External circuit 300R: Accommodation space AE1: The first connected component AX: spindle CVP: Coverage Department D1: first direction D2: direction EF1: The first reinforcing element EF2: Second reinforcing element EF3: The third reinforcing element EF4: The fourth reinforcing element GU: Enhancement element ICS: corresponding surface ITP1: First induction part ITP2: Second induction part MCE1: the first magnetic element OP1: First opening OP2: Second opening OVP1: First overlap part OVP2: Second overlap part OVP3: The third overlapping part PR1: Perforation PR2: Perforation PR3: Perforation STP: support part TR1: first trench TR2: Second trench TR3:Third trench WR1: first lead WR2: second lead X:X axis Y:Y axis Z:Z axis

Figure 1 is a schematic cross-sectional view of a wireless transmission module 100 and an electronic module 200 according to an embodiment of the present disclosure. Figure 2 is an enlarged structural view of the base component 102 before pressure heating according to an embodiment of the present disclosure. Figure 3 is an enlarged view of the structure of the base component 102 after pressure and heating according to an embodiment of the present disclosure. Figure 4 is a schematic cross-sectional view of a wireless transmission module 100A according to another embodiment of the present disclosure. FIG. 5 is a schematic side view of a wireless transmission module 100A according to another embodiment of the present disclosure. Figure 6 is a schematic cross-sectional view of a wireless transmission module 100B according to another embodiment of the present disclosure. Figure 7 is a schematic cross-sectional view of a wireless transmission module 100C according to another embodiment of the present disclosure. FIG. 8 is a three-dimensional schematic diagram of a wireless transmission module 100D and an external circuit 300 according to another embodiment of the present disclosure. Figure 9 is a schematic cross-sectional view of a wireless transmission module 100D and an external circuit 300 according to another embodiment of the present disclosure. Figure 10 is a schematic cross-sectional view of a wireless transmission module 100E and an external circuit 300 according to another embodiment of the present disclosure. FIG. 11 is a schematic cross-sectional view of a wireless transmission module 100F and an external circuit 300 according to another embodiment of the present disclosure.

100:Wireless transmission module

102: Base component

1021: The first magnetic conductive part

1022: The second magnetic conductive part

102S1: First substrate surface

102S2: Second substrate surface

104:First coil

104C: Center

200: Electronic modules

202:Coil

AX: spindle

CVP: Coverage Department

D1: first direction

D2: Direction

ICS: corresponding surface

STP: support part

X:X axis

Y:Y axis

Z:Z axis

Claims (10)

A wireless transmission module corresponds to an electronic module and is configured to transmit a first signal, and the wireless transmission module includes: a corresponding surface facing the electronic module and perpendicular to a main axis; a base component; and a first coil disposed on the base component; wherein the first coil overlaps at least a portion of the base component when viewed along the main axis; When viewed along a direction perpendicular to the main axis, the first coil overlaps at least a portion of the base component. The wireless transmission module as described in claim 1, wherein The base component includes a first magnetic conductive part with a first magnetic conductive material; The base component includes a plurality of first magnetic conductive elements; The base component contains iron; The base component contains silicon elements; The base component contains chromium; The diameter of the first magnetic conductive elements is less than 0.05mm; The wireless transmission module further includes a first connecting element configured to connect the first magnetic conductive elements; The first connecting element directly contacts the first magnetically permeable elements; The first connecting element directly contacts the first coil; The first coil is fixedly connected to the first magnetic conductive elements via the first connecting element; The melting point of the first bonding element is higher than 70 degrees Celsius; The melting point of the first connecting element is lower than 400 degrees Celsius. The wireless transmission module as described in claim 2, wherein When viewed along a first direction, the base component covers at least a portion of the first coil; The first direction is opposite to the direction in which the corresponding surface faces; The base component further includes: a support portion configured to support the first coil; and a covering part covering a part of the first coil; When viewed along the direction perpendicular to the main axis, the first coil is located between the support part and the electronic module; When viewed along the main axis, the first coil overlaps at least a portion of the support portion; When viewed along the first direction, at least a portion of the covering portion overlaps the first coil; When viewed along a direction perpendicular to the main axis, at least a portion of the covering portion overlaps the first coil; When viewed along a direction perpendicular to the main axis, the center of the first coil is located between the covering part and the supporting part on the main axis. The wireless transmission module as described in claim 3, wherein This first coil contains: a first lead located on a first side wall surface of the base component; and A reinforcing element is provided on the first lead; The first side wall surface is parallel to the main axis; The first lead passes through a first opening on the first side wall surface; The first opening has a closed structure; The reinforcing element directly contacts the first opening; The reinforcing element is of non-metallic material; On the main axis, the shortest distance between the first coil and the corresponding surface is different from the shortest distance between the first lead and the corresponding surface; On the main axis, the shortest distance between the first coil and the corresponding surface is smaller than the shortest distance between the first lead and the corresponding surface; The base component further includes a first base surface facing the electronic module; The first base surface and the first side wall surface are not parallel; The base component further includes a first structural strengthening part configured to strengthen the mechanical structure of the base component; The first structural reinforcement is located between the first base surface and the first sidewall surface; The surface of the first structural reinforcement is not parallel to the first base surface and the first side wall surface; The angle between the surface of the first structural reinforcement part and the surface of the first base is greater than 15 degrees; The angle between the surface of the first structural reinforcement part and the surface of the first side wall is greater than 15 degrees; The base component further includes a second base surface facing in the opposite direction to the first base surface; The base component further includes a second structural strengthening part configured to strengthen the mechanical structure of the base component; The second structural reinforcement is located between the second base surface and the first sidewall surface; The surface of the second structural reinforcement is not parallel to the second base surface and the first side wall surface; The structure of the second structural reinforcement part is different from the structure of the first structural reinforcement part; The surface reinforced by the second structure has a radius of curvature greater than 0.05mm; When viewed along the main axis, the first structural reinforcement overlaps at least a portion of the second structural reinforcement; The wireless transmission module further includes a second coil disposed on the base component; The second coil is electrically independent from the first coil; One of the first coil and the second coil is configured to transmit the first signal, and the other is configured to transmit a second signal; The second coil overlaps at least a portion of the first coil when viewed along a direction perpendicular to the main axis. The wireless transmission module as described in claim 3, wherein The base component further includes a first base surface facing the electronic module; The base component further includes a second base surface facing in the opposite direction to the first base surface; The wireless transmission module further includes a second coil disposed on the base component; The second coil is electrically independent from the first coil; The wireless transmission module further includes a first protection element disposed on the first coil; The first protection element has a plate-like structure and directly contacts the first substrate surface; The first protection element directly contacts the first coil; The first protection element directly contacts the second coil; The first protection element includes a first connecting portion configured to be connected to the first coil; The first bonding portion is bonded to the first base surface; The first connecting part is connected to the covering part; When viewed along the direction perpendicular to the main axis, the first coil is located between the support part and the first protection element; The first protection element further includes a first body, and the first connecting portion is provided on the first body; The first protection component further includes a second connecting portion configured to be connected to a first external component; The first body is located between the first connecting part and the second connecting part; The first external component is a housing of an electronic device; The base component further includes a first structural strengthening part configured to strengthen the mechanical structure of the base component; The first protective element overlaps at least a portion of the first structural reinforcement when viewed along the main axis; The first connecting part is connected to the first structural strengthening part; The wireless transmission module further includes a second protection element disposed on the second base surface; The second protective element has a plate-like structure; When viewed along a direction perpendicular to the main axis, the support portion is located between the first coil and the second protection element; The second protection element includes a third bonding portion configured to bond to the second substrate surface; The second protection element further includes a second body, and the third connecting portion is provided on the second body; The second protection component further includes a fourth connecting portion configured to be connected to a second external component; The second body is located between the third connecting part and the fourth connecting part; The second external component is a circuit component of the electronic device; The base component further includes a second structural strengthening part configured to strengthen the mechanical structure of the base component; The second protective element overlaps at least a portion of the second structural reinforcement when viewed along the main axis; The third connecting part is connected to the second structural strengthening part; The first protection element directly contacts the second protection element; The first connecting part is connected to the third connecting part; The base component further includes: a first groove located on the surface of the second substrate; a second trench located on the second substrate surface; and a third groove located on the surface of the second substrate; The third connecting portion corresponds to the first groove; The first trench extends to the first coil; When viewed along a direction perpendicular to the main axis, the first groove does not overlap the first coil; The first groove overlaps at least a portion of the first coil when viewed along the main axis; The second groove overlaps at least a portion of the first coil when viewed along a direction perpendicular to the main axis; The second trench is located on the first substrate surface; The first connecting portion corresponds to the second groove; The third connecting portion corresponds to the second groove; On the spindle, the maximum dimension of the first groove is different from the maximum dimension of the second groove; On the main shaft, the maximum dimension of the first groove is smaller than the maximum dimension of the second groove; When viewed along a direction perpendicular to the main axis, the third groove does not overlap the second coil; The third groove overlaps at least a portion of the second coil when viewed along the main axis; The third connecting portion corresponds to the third groove; On the spindle, the maximum dimension of the third groove is smaller than the maximum dimension of the second groove. The wireless transmission module as described in claim 2, wherein The wireless transmission module further includes a first conductive element; The first coil is electrically connected to an external circuit through the first conductive element; The first conductive element has a plate-like structure; The first conductive element is made of metal; At least a portion of the first conductive element is buried and not exposed by the base component; A surface of a first external electrical connection portion of the first conductive element is perpendicular or parallel to the main axis; The first external electrical connection portion is configured to electrically connect to the external circuit; A portion of the first external electrical connection portion is exposed from the base component; A surface of a first internal electrical connection portion of the first conductive element is perpendicular or parallel to the main axis; The first internal electrical connection portion is configured to electrically connect the first coil; The first internal electrical connection portion is exposed from the base component; The wireless transmission module further includes a first reinforcing element directly contacting the first internal electrical connection part; A first conductor of the first coil has a first cross-section, the first conductive element has a second cross-section, and the first cross-section and the second cross-section have different structures; The first section has an arc structure; The second cross-section has a polygonal structure; The wireless transmission module also includes: An electronic component is provided on the base component; a second conductive element, and the electronic component is electrically connected to the external circuit via the second conductive element; and a third conductive element, and the second coil is electrically connected to the external circuit via the third conductive element; The second conductive element has a plate-like structure; The second conductive element is made of metal; At least a portion of the second conductive element is buried and not exposed by the base component; A surface of a second external electrical connection portion of the second conductive element is perpendicular or parallel to the main axis; The second external electrical connection portion is configured to electrically connect to the external circuit; The second external electrical connection portion is exposed from the base component; The surface of the first external electrical connection part is parallel to the surface of the second external electrical connection part; The surface of the first external electrical connection part is coplanar with the surface of the second external electrical connection part; A surface of the first external electrical connection portion facing the first coil and the surface of the first internal electrical connection portion facing the first coil are located in different planes; A surface of a second internal electrical connection portion of the second conductive element is perpendicular or parallel to the main axis; The second internal electrical connection portion is configured to electrically connect the electronic component; The second internal electrical connection portion is exposed from the base component; The second conductive element has a second cross-section, and the second cross-section has a polygonal structure; The surface of the first internal electrical connection part is parallel to the surface of the second internal electrical connection part; The surface of the first internal electrical connection is coplanar with the surface of the second internal electrical connection; The third conductive element has a plate-like structure; The third conductive element is made of metal; At least a portion of the third conductive element is buried and not exposed by the base component; A surface of a third external electrical connection portion of the third conductive element is perpendicular or parallel to the main axis; The third external electrical connection portion is configured to electrically connect to the external circuit; The third external electrical connection portion is exposed from the base component; A surface of a third internal electrical connection portion of the third conductive element is perpendicular or parallel to the main axis; The third internal electrical connection portion is configured to electrically connect the second coil; The third internal electrical connection portion is exposed from the base component; The surface of the third internal electrical connection portion is coplanar with the surface of the first internal electrical connection portion; The wireless transmission module further includes: a second reinforcing element directly contacting the second internal electrical connection; a third reinforcing element directly contacting the third internal electrical connection; and a fourth reinforcing element directly contacting the first external electrical connection part; The second reinforcing element is made of non-metallic material; The third reinforcing element is made of non-metallic material; The first reinforcing element and the fourth reinforcing element have an integrally formed structure; The electronic component is arranged in a receiving portion of the base component; The receiving portion has a recessed structure and is located on the first base surface; The wireless transmission module further includes a first protection element disposed on the first coil; The first protection element further includes an opening corresponding to the receiving portion; When viewed along the first direction, at least a portion of the electronic component is exposed from the opening; At least a portion of the first coil is exposed from the receiving portion; On the main axis, the maximum size of the first induction body of the first coil is different from the maximum size of the base component; On the main axis, the maximum dimension of the first sensing body is smaller than the maximum dimension of the base component; On the main axis, the maximum dimension of the first sensing body is less than one-third of the maximum dimension of the base assembly. The wireless transmission module as described in claim 2, wherein The wireless transmission module further includes a second coil disposed on the base component; The base component further includes: a first induction part corresponding to the first coil and having a first characteristic function; and a second induction part corresponding to the second coil and having a second characteristic function; When viewed along the main axis, the first sensing portion overlaps at least a portion of the first coil; When viewed along the main axis, the second sensing portion overlaps at least a portion of the second coil; Corresponding to an electromagnetic wave of a first frequency, the first and second characteristic functions are different; The base component further includes a second magnetic conductive part made of a different material from the first magnetic conductive part; When viewed along the main axis, the second magnetic conductive portion overlaps with at least one of the first coil or the second coil; The first sensing part covers a part of the first magnetic conductive part; The second induction part covers a part of the second magnetic conductive part; When viewed along the main axis, the second magnetically conductive portion overlaps at least a portion of the first magnetically conductive portion; When viewed along the direction perpendicular to the main axis, the second magnetic conductive part does not overlap with the first magnetic conductive part; On the main shaft, the maximum size of the first sensing part is different from the maximum size of the second sensing part; An external circuit includes a receiving space configured to receive at least a portion of the base component; The accommodation space has an opening structure; The external circuit overlaps at least a portion of the base component when viewed along a direction perpendicular to the main axis; The external circuit overlaps at least a portion of the base component when viewed along the direction of the main axis. The wireless transmission module as described in claim 7, wherein When viewed along a direction perpendicular to the main axis, the external circuit overlaps at least a portion of the first magnetic conductive portion; The external circuit overlaps at least a portion of the first coil when viewed along a direction perpendicular to the main axis; The external circuit overlaps at least a portion of the second coil when viewed along a direction perpendicular to the main axis; The base component defines a first overlapping portion, and the external circuit overlaps the first overlapping portion when viewed along a direction perpendicular to the main axis; The external circuit does not overlap the first overlapping portion when viewed along the main axis; When viewed along the main axis, there is a gap between the first overlapping portion and the external circuit. The wireless transmission module as described in claim 7, wherein The external circuit does not overlap the first coil when viewed along a direction perpendicular to the main axis; The external circuit does not overlap the first coil when viewed along the main axis; The external circuit overlaps at least a portion of the second coil when viewed along the main axis; When viewed along a direction perpendicular to the main axis, the external circuit overlaps at least a portion of the second magnetic conductive portion. The wireless transmission module as described in claim 7, wherein The base component defines a first overlapping portion, a second overlapping portion and a third overlapping portion; The external circuit overlaps the first overlapping portion when viewed along a direction perpendicular to the main axis; The external circuit does not overlap the first overlapping portion when viewed along the main axis; The external circuit overlaps the second overlap when viewed along the main axis; When viewed along a direction perpendicular to the main axis, the external circuit does not overlap with the second overlapping portion; The external circuit overlaps the third overlap portion when viewed along the main axis; When viewed along a direction perpendicular to the main axis, the external circuit does not overlap with the third overlapping portion; When viewed along a direction perpendicular to the main axis, the external circuit is located between the second overlapping portion and the third overlapping portion; The first overlapping part, the second overlapping part and the third overlapping part have an integrally formed structure; The first overlapping portion contacts the external circuit.

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