CN-224233400-U - Wireless transmission module

CN224233400UCN 224233400 UCN224233400 UCN 224233400UCN-224233400-U

Abstract

The utility model provides a wireless transmission module for transmitting energy or signals, which comprises a coil assembly and a first base. The coil assembly has a bobbin. The first base corresponds to the coil assembly. The coil assembly and the first base are arranged along the winding shaft.

Inventors

CHEN MAOJUN
YU TAIXIAN
LI GUORUI
LI WEIJUN

Assignees

TDK株式会社

Dates

Publication Date: 20260512
Application Date: 20250224

Claims (9)

1. A wireless transmission module, comprising: A coil assembly having a spool, and A first base corresponding to the coil assembly; Wherein the coil assembly and the first base are arranged along the winding shaft; The wireless transmission module also comprises a second base which is configured to bear the coil assembly and the first base; the second base is provided with a first side plate and a second side plate; The first side plate is opposite to the second side plate; The coil component and the first base are arranged on the first side plate; The wireless transmission module further comprises a plurality of electronic components arranged on the second side plate; these electronic components include resistors, capacitors, inductors, integrated circuit chips, or combinations thereof; These electronic components do not include any coils for wireless transmission.
2. The wireless transmission module of claim 1, wherein, The second base is also provided with a first electrical contact and a second electrical contact which are arranged on the first side plate; The coil component is provided with a winding body, a first lead and a second lead; The first lead and the second lead extend from the winding body and are configured to be connected to the first electrical contact and the second electrical contact respectively; The thickness of the coil component on the winding shaft is less than 1 mm; A width of the first lead or the second lead is greater than 1 mm.
3. The wireless transmission module of claim 2, wherein, The second base also comprises a plurality of wires which are partially arranged between the first side plate and the second side plate; the second base also comprises a central layer plate arranged between the first side plate and the second side plate; A portion of the traces are located in the center layer; at least one of the traces is configured to be electrically connected to two of the electronic components; when viewed along the spool, a portion of the traces overlap a portion of the coil assembly; The second base also comprises two power input contacts which are arranged on the second side plate; The two power input contacts are configured to be electrically connected to one of the electronic components through two of the wires; The wireless transmission module also comprises a first joint component, a second joint component and a protection component; The coil component is fixed on the first base through the first joint component and the protection component; The first base is fixed on the first side plate through the second joint component; The protection component corresponds to the second joint component; the first base is arranged between the second joint component and the protection component; the protective component completely shields the first base when seen along the winding shaft.
4. The wireless transmission module of claim 3, wherein, The second base also comprises a plurality of detection joints which are arranged on the second side plate; The detection contacts are configured to be electrically connected to at least one of the electronic components; The second base also comprises a first through hole and a second through hole; The first through hole and the second through hole penetrate through the central layer plate; The detection contacts comprise a first detection contact and a second detection contact; The first through hole is configured to be connected to the first electrical contact and the first detection contact; the second through hole is configured to connect the second electrical contact and the second detection contact.
5. The wireless transmission module of claim 2, wherein, The first base is provided with a first opening corresponding to the first electric contact and the second electric contact; When the first electric contact and the second electric contact are observed along the winding shaft, the first electric contact and the second electric contact are exposed from the first opening; when viewed along the spool, a portion of the first lead and a portion of the second lead overlap the first opening; The wireless transmission module also comprises a first joint component and a second joint component; the first joint component is provided with an annular structure and corresponds to the winding body; The first joint component has a size different from that of the winding body; the first joint component is configured to fix the coil component to the first base; the shape of the second joint assembly corresponds to the shape of the first base; the second engagement assembly is configured to secure the first base to the second base; the second base has a rectangular structure when viewed along the winding shaft; the second base is defined with a first axial direction and a second axial direction; The first axial direction is perpendicular to the second axial direction; the winding shaft is perpendicular to the first axial direction and the second axial direction; when viewed along the first axial direction, a part of the first lead and a part of the second lead are overlapped on the first base; When viewed along the second axis, a portion of the first lead and the second lead overlap the first base; the first lead and a portion of the second lead are located in the first opening.
6. The wireless transmission module of claim 5, wherein, The rectangular structure has a first side when viewed along the spool; The first opening is positioned at the first side edge; the first base has a U-shaped structure when viewed along the spool; the second joint component is provided with a second opening corresponding to the first opening; the second engagement assembly has a U-shaped configuration when viewed along the spool; The first opening is not overlapped with the winding body when being observed along the winding shaft; the first lead and the second lead extend outwards from the winding body to the first electrical contact and the second electrical contact.
7. The wireless transmission module of claim 6, wherein, In the second axial direction, the second base has a first width; In the second axial direction, the first base has a second width; the second width is ninety percent or more of the first width; The winding body has a diameter; The diameter is seventy percent or more of the second width.
8. The wireless transmission module of claim 5, wherein, The rectangular structure has a central region when viewed along the spool; the first opening is located at the central region; The first base has a frame-shaped structure when viewed along the spool; the second joint component is provided with a second opening corresponding to the first opening; the second engagement assembly has a frame-shaped structure when viewed along the spool; The winding body surrounds the first opening when being observed along the winding shaft; when the winding shaft is observed along the winding shaft, the winding body surrounds the first electrical contact and the second electrical contact; the winding body surrounds the first lead and the second lead when being observed along the winding shaft; The first lead and the second lead extend inwards from the winding body to the first electrical contact and the second electrical contact.
9. The wireless transmission module of claim 8, wherein, The second base also comprises a first through hole and a second through hole; The first through hole is configured to be connected to the first electrical contact; The second through hole is configured to be connected to the second electrical contact; when the winding shaft is observed along the winding shaft, the winding body surrounds the first through hole and the second through hole; the coil component is electrically connected to at least one of the electronic components through the first through hole and the second through hole; in the second axial direction, the second base has a first width; In the second axial direction, the first base has a second width; the second width is ninety percent or more of the first width; The winding body has a diameter; The diameter is greater than eighty percent of the second width.

Description

Wireless transmission module Technical Field The present utility model relates to a wireless transmission module, and more particularly, to a wireless transmission module for wireless communication or wireless charging. Background With the development of technology, many electronic devices (such as tablet computers or smart phones) have wireless charging function. The user can place the electronic device on a wireless charging transmitting end, so that a wireless charging receiving end in the electronic device can charge the battery by generating current in an electromagnetic induction mode or an electromagnetic resonance mode. Due to the convenience of wireless charging, electronic devices with wireless charging modules are also increasingly popular. Generally, the wireless charging module includes a magnetically permeable substrate carrying a coil. When the coil is electrified to operate in a wireless charging mode or a wireless communication mode, the magnetic permeability substrate can make magnetic force lines emitted by the coil more concentrated so as to obtain better efficiency. However, the structure of the conventional wireless charging (or communication) module and the winding method of the coil cannot meet various requirements for the wireless transmission module, such as better charging, communication performance and miniaturization. Therefore, how to design a wireless transmission module that can meet various requirements of users is a problem to be studied and solved. Disclosure of utility model In view of the above, the present utility model provides a wireless transmission module to solve the above-mentioned problems. The utility model provides a wireless transmission module for transmitting energy or signals, which comprises a coil assembly and a first base. The coil assembly has a bobbin. The first base corresponds to the coil assembly. The coil assembly and the first base are arranged along the winding shaft. According to some embodiments of the utility model, the wireless transmission module further comprises a second base configured to carry the coil assembly and the first base. The second base is provided with a first side plate and a second side plate. The first side plate is opposite to the second side plate. The coil assembly and the first base are arranged on the first side plate. The wireless transmission module further comprises a plurality of electronic components arranged on the second side plate. These electronic components include resistors, capacitors, inductors, integrated circuit chips, or combinations thereof. These electronic components do not include any coils for wireless transmission. According to some embodiments of the utility model, the second base further has a first electrical contact and a second electrical contact disposed on the first side plate. The coil assembly has a winding body, a first lead and a second lead. The first lead and the second lead extend from the winding body and are configured to be connected to the first electrical contact and the second electrical contact respectively. The thickness of the coil assembly on the spool is less than 1mm. A width of the first lead or the second lead is greater than 1mm. According to some embodiments of the utility model, the second base further comprises a plurality of traces partially disposed between the first side plate and the second side plate. The second base also comprises a central layer plate arranged between the first side plate and the second side plate. A portion of these traces are located in the center laminate. At least one of the traces is configured to be electrically connected to two of the electronic components. A portion of the traces overlap a portion of the coil assembly when viewed along the spool. The second base also comprises two power input contacts arranged on the second side plate. The two power input contacts are configured to be electrically connected to one of the electronic components via two of the traces. The wireless transmission module also comprises a first joint component, a second joint component and a protection component. The coil assembly is fixed on the first base through the first joint assembly and the protection assembly. The first base is fixed on the first side plate through the second joint assembly. The protection component corresponds to the second engagement component. The first base is arranged between the second joint component and the protection component. The protective assembly completely shields the first base when viewed along the spool. According to some embodiments of the utility model, the second base further includes a plurality of detecting contacts disposed on the second side plate. The detection contacts are configured to be electrically connected to at least one of the electronic components. The second base also comprises a first through hole and a second through hole. The first through hole and the second through hole penetrate through the c