Two-side connected inductor
By burying the coil electrode assembly in the inductor to form the top and bottom electrodes, the problem of poor soldering flexibility of existing inductors on multi-layer circuit boards is solved, and the flexible use of inductors on multi-layer circuit boards is realized.
Patent Information
- Application Number
- CN202323313169.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-05
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2033-12-05
AI Technical Summary
Existing inductors usually can only form electrodes on the bottom surface and cannot be directly welded to the upper layer of multi-layer circuit boards. They have poor flexibility and are difficult to be suitable for complex multi-layer circuit board structures.
Design an inductor connected on both sides. The top and bottom surfaces of the inductor have solderable electrodes. By burying a coil electrode assembly in the inductor body, the two conductive blocks are respectively connected to the two ends of the coil, and the upper end of the conductive block is exposed. The top surface forms a top surface electrode, and the lower end is exposed to the bottom surface to form a bottom surface electrode, achieving flexibility in welding on both sides.
It achieves improved inductance flexibility, can solder electrodes on upper or lower circuit boards without flipping inductors, and is suitable for complex multi-layer circuit board structures.
Smart Images
Figure CN222300432U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of inductors, in particular to an inductor connected on both sides. Background Art
[0002] With the development of electronic circuit technology, the structure of existing circuit boards has become more complex, and more and more multi-layer circuit boards are being used in the field of electronic information. As one of the most common electronic components on circuit boards, the structure of inductors also needs to change with changing needs. However, existing inductors usually only form electrodes on the bottom surface of the inductor body, so the inductor can only be soldered from the bottom. When it is applied to multi-layer circuit boards, it cannot be directly soldered to the upper circuit board, and its flexibility is poor. Utility Model Content
[0003] The utility model provides an inductor with two-side connection, the top and bottom surfaces of which are both provided with weldable electrodes, which has stronger flexibility and can be applied to a complex multi-layer circuit board structure.
[0004] In order to solve the above problems, the utility model adopts the following technical solutions:
[0005] An embodiment of the utility model provides an inductor connected on both sides, including an inductor body and a coil-electrode assembly, wherein the coil-electrode assembly includes a coil and two conductive blocks, wherein the coil is buried in the inductor body, and the two conductive blocks are respectively connected to the two ends of the coil; the upper ends of the two conductive blocks are exposed on the top surface of the inductor body to form a top surface electrode, and the lower ends of the two conductive blocks are exposed on the bottom surface of the inductor body to form a bottom surface electrode.
[0006] In some embodiments, two coil electrode assemblies are provided, the coils of the two coil electrode assemblies are both flat coils, and the flat coils of the two coil electrode assemblies are parallel to each other.
[0007] In some embodiments, the two conductive blocks of the coil-electrode assembly are integrally connected to the flat coil.
[0008] In some embodiments, the two conductive blocks of the coil-electrode assembly are parallel to each other, and both conductive blocks are vertically connected to the flat coil.
[0009] In some embodiments, the top electrode protrudes from the top surface of the inductor body, and the bottom electrode protrudes from the bottom surface of the inductor body.
[0010] In some embodiments, the inductor body is in a rectangular parallelepiped shape, and the four corners of the inductor body are all rounded.
[0011] The utility model has at least the following beneficial effects: the two conductive blocks of the utility model are respectively connected to the two ends of the coil; the upper ends of the two conductive blocks are exposed on the top surface of the inductor body to form a top surface electrode, and the lower ends of the two conductive blocks are exposed on the bottom surface of the inductor body to form a bottom surface electrode; thus, the top surface and the bottom surface of the inductor both have weldable electrodes, and according to actual needs, the electrode on the top surface of the inductor can be welded on the upper circuit board, or the electrode on the bottom surface of the inductor can be welded on the lower circuit board, without flipping the entire inductor, so the inductor is more flexible and can be suitable for complex multi-layer circuit board structures. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the structure of an inductor connected on both sides observed from above in one embodiment of the utility model;
[0013] Figure 2 This is a schematic structural diagram of an inductor connected on both sides according to an embodiment of the utility model, viewed from below;
[0014] Figure 3 The figure is a schematic structural diagram of a coil electrode assembly according to an embodiment of the utility model.
[0015] Wherein, the accompanying drawings are marked as follows:
[0016] Inductor body 100 , coil 200 , conductive block 300 , top electrode 310 , bottom electrode 320 . DETAILED DESCRIPTION
[0017] The utility model provides the following description with reference to the accompanying drawings to help fully understand the various embodiments of the utility model as defined by the claims and their equivalents. The description includes various specific details to help understanding, but these details should be regarded as exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the utility model.
[0018] In the description of the present invention, descriptions of orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0019] It will be understood that when one element (eg, a first element) is “connected” to another element (eg, a second element), the element may be directly connected to the other element or an intervening element (eg, a third element) may be present between the element and the other element.
[0020] The embodiment of the utility model provides an inductor connected on both sides, such as Figure 1-3 As shown, it includes an inductor body 100 and a coil electrode assembly, and the coil electrode assembly includes a coil 200 and two conductive blocks 300. The inductor body 100 is pressed by magnetic powder, and can be specifically formed by hot pressing. The coil 200 is buried in the inductor body 100. When pressing the inductor body 100, the coil 200 is buried in the magnetic powder. After hot pressing by the mold, the coil 200 is integrally formed with the inductor body 100. The two conductive blocks 300 are respectively connected to the two ends of the coil 200 to energize the coil 200. The two conductive blocks 300 can extend in the vertical direction, and the middle part thereof is connected to the coil 200. The upper end of the conductive block 300 is exposed on the top surface of the inductor body 100. The top surface of the inductor body 100 is naturally provided with an upper opening for exposing the conductive block 300. The exposed portion of the upper end of the conductive block 300 forms a top surface electrode 310. The lower end of the conductive block 300 is exposed on the bottom surface of the inductor body 100. The bottom surface of the inductor body 100 is naturally provided with a lower opening for exposing the conductive block 300. The exposed portion of the lower end of the conductive block 300 forms a bottom surface electrode 320. According to actual needs, the two top surface electrodes 310 can be welded on the upper circuit board. When the two top surface electrodes 310 are energized, the inductor is energized to work. The two bottom electrodes 320 can also be welded on the lower circuit board. When the two bottom electrodes 320 are energized, the inductor can also be energized to work. In this way, there is no need to flip the entire inductor. The entire inductor can also be used to support the upper circuit board. Therefore, the entire inductor is more flexible and can be applied to complex multi-layer circuit board structures.
[0021] In some embodiments, two coil electrode assemblies are provided, and the coils 200 of the two coil electrode assemblies are flat coils, which can be made of copper material and formed into a flat structure after being flattened. The flat coils of the two coil electrode assemblies are parallel to each other, thereby forming a coupled inductor. The top surface of the inductor body 100 will have four top electrodes 310, and the bottom surface of the inductor body 100 will have four bottom electrodes 320. The two coil electrode assemblies can be connected to the same circuit board, or respectively connected to the upper circuit board and the lower circuit board to be suitable for different circuit structures.
[0022] Furthermore, the two conductive blocks 300 of the coil electrode assembly are integrally connected to the flat coil. Both the conductive block 300 and the flat coil can be pressed from copper wire, which is convenient for overall manufacturing and molding without welding, thus simplifying the process steps and enhancing the connection strength between the conductive block 300 and the flat coil.
[0023] Furthermore, the two conductive blocks 300 of the coil electrode assembly are parallel to each other, and both conductive blocks 300 are vertically connected to the flat coil. The entire coil electrode assembly presents an "I"-shaped structure, which is more regular and conducive to the uniform distribution of magnetic powder, thereby ensuring the performance of the inductor.
[0024] In some embodiments, the top electrode 310 protrudes from the top surface of the inductor body 100 , and the bottom electrode 320 protrudes from the bottom surface of the inductor body 100 . Such a configuration is beneficial to tin soldering on the electrodes, making inductor soldering easier.
[0025] In some embodiments, the inductor body 100 is in a rectangular shape, and the four corners of the inductor body 100 are all rounded. The rounded corner structure makes the inductor body 100 less susceptible to scratches and improves the appearance.
[0026] The terms and words used in the above description and claims are not limited to the literal meanings, but are only used by the applicant to enable a clear and consistent understanding of the utility model. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the utility model is provided only for illustration, and not for limiting the utility model as defined by the attached claims and their equivalents.
Claims
1. An inductor connected on both sides, characterized in that: The inductor comprises an inductor body and a coil-electrode assembly, wherein the coil-electrode assembly comprises a coil and two conductive blocks, wherein the coil is embedded in the inductor body, and the two conductive blocks are respectively connected to two ends of the coil; the upper ends of the two conductive blocks are exposed on the top surface of the inductor body to form a top surface electrode, and the lower ends of the two conductive blocks are exposed on the bottom surface of the inductor body to form a bottom surface electrode; The coil electrode assemblies are provided with two, the coils of the two coil electrode assemblies are both flat coils, and the flat coils of the two coil electrode assemblies are parallel to each other; The two conductive blocks of the coil-electrode assembly are integrally connected to the flat coil; The two conductive blocks of the coil-electrode assembly are parallel to each other, and both conductive blocks are vertically connected to the flat coil; The top electrode protrudes from the top surface of the inductor body, and the bottom electrode protrudes from the bottom surface of the inductor body; The inductor body is in a rectangular parallelepiped shape, and the four corners of the inductor body are all rounded.