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CN-122025348-A - Magnetic device and electronic apparatus

CN122025348ACN 122025348 ACN122025348 ACN 122025348ACN-122025348-A

Abstract

The application relates to the technical field of magnetic devices, and discloses a magnetic device and electronic equipment, wherein the magnetic device comprises a support body; the magnetic ring assembly comprises a support body, a shell, a magnetic ring group, a plurality of terminals and terminals, wherein one end of the shell is opened to form a containing cavity, one end of the shell is attached to the upper surface of the support body and is in sealing connection with the support body, the magnetic ring group is arranged on the upper surface of the support body and is positioned in the containing cavity, winding coils are wound on the magnetic ring group, the terminals are arranged on the side edges of the support body, and the terminals of the magnetic ring group are correspondingly connected with the terminals on the upper surface of the support body. The application improves the reliability of the device.

Inventors

  • LI YAOGUANG
  • GONG BANGHUI
  • HUANG JINGXIN

Assignees

  • 深圳顺络汽车电子有限公司

Dates

Publication Date
20260512
Application Date
20260226

Claims (20)

  1. 1. A magnetic device, comprising: A support body (1); The shell (2), one end of the shell (2) is opened to form a containing cavity (21), and one end of the opening of the shell (2) is attached to the upper surface of the support body (1) and is in sealing connection with the support body (1); the magnetic ring group (3), at least one magnetic ring group (3) is arranged on the upper surface of the support body (1) and is positioned in the accommodating cavity (21), and a winding coil (4) is wound on the magnetic ring group (3); The terminals (5) are arranged on the side edges of the supporting body (1), and the terminals of the magnetic ring groups (3) are correspondingly connected with the terminals (5) on the upper surface of the supporting body (1).
  2. 2. A magnetic device according to claim 1, characterized in that a first adhesive layer (71) is provided in the area of the joint between the support (1) and the housing (2), the first adhesive layer (71) connecting the support (1) and the housing (2), respectively.
  3. 3. A magnetic device according to claim 1, characterized in that the terminal and the terminal (5) are electrically connected at the upper surface of the support body (1) to form an electrical connection point (5 a) on the terminal (5), the electrical connection point (5 a) being located within the housing cavity (21) and being at a distance from the inner wall of the housing cavity (21) of ∈0.
  4. 4. A magnetic device according to claim 3, characterized in that a clearance groove (211) is provided on the inner wall of the housing cavity (21) in correspondence of the electrical connection point (5 a).
  5. 5. A magnetic device according to claim 1, characterized in that the terminals of each magnetic ring set (3) are electrically connected in a one-to-one correspondence with the terminals (5) or at least one of the terminals (5) is electrically connected simultaneously to both terminals of each magnetic ring set (3) depending on the number of the terminals (5) arranged at the side of the support (1).
  6. 6. A magnetic device according to claim 5, characterized in that on the upper surface of the support (1), two terminals of each set (3) of magnetic rings form one electrical connection point (5 a) on the same terminal (5), or two electrical connection points (5 a) spaced apart.
  7. 7. The magnetic device according to claim 1, wherein the support body (1) is provided with positioning bosses (12) arranged at intervals, the magnetic ring groups (3) are located between adjacent positioning bosses (12), one side of the positioning bosses (12) facing the magnetic ring groups (3) is matched with the outline of the outer wall of the magnetic ring groups (3), and the other side opposite to the positioning bosses (12) is attached to the inner wall of the shell (2).
  8. 8. A magnetic device according to claim 7, characterized in that the support body (1) is provided with a second adhesive layer (72), the second adhesive layer (72) connecting the magnetic ring set (3) and the winding coil (4) between adjacent positioning bosses (12).
  9. 9. The magnetic device according to claim 8, characterized in that the area of the connection of the second adhesive layer (72) to the magnetic ring set (3) is smaller than a first adhesive value and the area of the connection of the second adhesive layer (72) to the winding coil (4) is smaller than a second adhesive value.
  10. 10. The magnetic device according to claim 1, characterized in that the support body (1) is provided with positioning projections (13) which are arranged at intervals, the positioning projections (13) are wound on the magnetic ring group (3), and a guiding inclined plane is arranged on one side of the positioning projections (13) which is away from the magnetic ring group (3).
  11. 11. A magnetic device according to claim 5, wherein a plurality of the terminals (5) are arranged at intervals on the side of the support body (1), and each of the terminals (5) covers the side surface and part of the upper and lower surfaces of the support body (1).
  12. 12. A magnetic device according to claim 1, characterized in that the terminals (5) are arranged in a 'mouth' or 'C' shaped configuration.
  13. 13. A magnetic device according to claim 11, characterized in that the terminal (5) comprises an electrode section (51) and at least one connection section (52), the connection section (52) being connected to the upper surface of the support body (1) and being electrically connected to the terminal to form an electrical connection point (5 a), the electrode section (51) being connected to a side surface and a part of the lower surface of the support body (1).
  14. 14. A magnetic device according to claim 13, characterized in that the support (1) comprises a PCB base.
  15. 15. The magnetic device according to claim 13, wherein the terminal (5) further comprises an embedded section (53), the embedded section (53) is buried in the support body (1), and both ends of the embedded section (53) are connected to the connection section (52) and the electrode section (51), respectively.
  16. 16. A magnetic device according to claim 15, characterized in that the side edges of the embedded segments (53) are provided with necked-down parts (531), which necked-down parts (531) are contracted from the side edges of the embedded segments (53) towards the centre of the embedded segments (53).
  17. 17. A magnetic device according to claim 1, characterized in that the magnetic ring set (3) comprises at least one transformer magnetic ring (31), the winding coil (4) being wound on the transformer magnetic ring (31).
  18. 18. The magnetic device according to claim 1, wherein the magnetic ring set (3) comprises a transformer magnetic ring (31) and a common mode magnetic ring (32), and the winding coil (4) is wound on the transformer magnetic ring (31) and the common mode magnetic ring (32).
  19. 19. A magnetic device according to claim 1, wherein a plurality of said magnetic ring groups (3) are arranged along the length direction of said support body (1), and said winding coils (4) are wound around each of said magnetic ring groups (3), respectively.
  20. 20. An electronic device comprising the magnetic device of any one of claims 1 to 19.

Description

Magnetic device and electronic apparatus Technical Field The application relates to the technical field of magnetic devices, in particular to a magnetic device and electronic equipment. Background Magnetic devices (such as network transformers, inductors, common mode chokes and the like) are key elements in electronic equipment, are widely applied to the fields of power transmission, signal isolation, energy conversion and the like, and along with the development of electronic products to high performance and high reliability, higher requirements are put on the structural stability, environmental adaptability and long-term reliability of the magnetic devices. In the related art, a magnetic device generally adopts a shell packaging structure, for example, the scheme of the magnetic device disclosed in patent document CN119381135A is adopted, a lead connector of a magnetic ring coil assembly is led out from one end inside a shell and then extends to the outer side of the opposite end of the shell to be electrically connected with a metal terminal in a groove of the shell, but the connection mode exposes an obvious structural problem, because the connection position of the lead connector and the metal terminal is higher than the wire outlet position of the magnetic ring coil assembly, the lead needs to be folded and turned to extend after being led out from the magnetic ring coil assembly, the path can generate an upward pulling trend on a magnetic ring in the connection process, the bottom surface of the magnetic ring is easily separated from the inner bottom surface of the shell, so that the magnetic ring coil assembly is not firmly fixed, meanwhile, the highest point after the magnetic ring coil assembly is easily higher than the end surface of the shell, a cover plate cannot be installed in place or is not tightly closed, and the long-term reliability of the device is reduced. Disclosure of Invention In view of the above, the present application provides a magnetic device and an electronic apparatus to solve the above-mentioned technical problems. In a first aspect, an embodiment of the present application discloses a magnetic device comprising: A support body; the shell is provided with an opening at one end to form a containing cavity, and one end of the opening of the shell is attached to the upper surface of the support body and is in sealing connection with the support body; The magnetic ring group is arranged on the upper surface of the support body and is positioned in the accommodating cavity, and winding coils are wound on the magnetic ring group; The terminals are arranged on the side edges of the supporting body, and the terminals of the magnetic ring group are correspondingly connected with the terminals on the upper surface of the supporting body. In one possible example, a first adhesive layer is provided in the bonding region between the support body and the housing, the first adhesive layer connecting the support body and the housing, respectively. In one possible example, the terminal and the terminal are electrically connected at an upper surface of the support body to form an electrical connection point on the terminal, the electrical connection point being located within the accommodation chamber and having a distance from an inner wall of the accommodation chamber (21) of 0 or more. In one possible example, a space-avoiding groove is formed on the inner wall of the accommodating cavity and at a position corresponding to the electric connection point. In one possible example, the terminals of each magnetic ring group are electrically connected to the terminals in a one-to-one correspondence, or at least one of the terminals is electrically connected to two terminals of each magnetic ring group in synchronization, according to the number of the terminals arranged on the side of the support body. In one possible example, on the upper surface of the support body, two terminals of each magnetic ring group form one electrical connection point on the same terminal, or form two electrical connection points kept at intervals. In one possible example, the support body is provided with positioning bosses arranged at intervals, the magnetic ring groups are located between adjacent positioning bosses, one side of each positioning boss facing the magnetic ring group is matched with the outline of the outer wall of the magnetic ring group, and the other side of each positioning boss opposite to the positioning boss is attached to the inner wall of the shell. In one possible example, a second adhesive layer is provided on the support body, and connects the magnetic ring set and the winding coil between adjacent positioning bosses. In one possible example, the connection area of the second adhesive layer and the magnetic ring group is smaller than a first adhesive value, and the connection area of the second adhesive layer and the winding coil is smaller than a second adhesive value. In one possible ex