Electrode, magnetic element and welding structure
By designing the electrode structure, the solder is exposed outside the second sub-transition electrode of the electrode, the problem of difficult solder detection at the bending of the magnetic component is solved, and effective monitoring of solder quality and improvement of SMT quality is achieved.
Patent Information
- Application Number
- CN202421653097.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-12
AI Technical Summary
In the prior art, the electrode bends of magnetic components have rounded corners that make it difficult to expose solder, which affects the welding quality monitoring of automatic optical detection, and leads to the unqualified SMT quality.
An electrode structure is designed, including a first main electrode, a second main electrode and a transition electrode. The transition electrode is provided with a first sub-transition electrode and a second sub-transition electrode along the width direction of the electrode. A second sub-transition electrode that does not participate in the bending is provided at the bending point, so that the solder is exposed outside it, which facilitates detection of AOI technology.
It realizes effective monitoring of welding quality, ensures that the SMT quality is qualified, and improves the detection accuracy of welding points.
Smart Images
Figure CN223140529U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of magnetic components, and particularly relates to an electrode, a magnetic component, and a welding structure. Background Art
[0002] SMT (Surface Mount Technology) is currently the most popular technology and process in the electronic assembly industry. Obtaining high-quality solder joints based on this SMT is the guarantee of the performance and reliability of electronic products. Currently, AOI (Automated Optical Inspection) technology is generally used to check whether there are defects in the solder joints. The principle is to use optical technology to obtain an image of the detection position and analyze it. To achieve this, the detection position must be unobstructed. However, the electrodes of magnetic components including inductors are bent into two parts. One part is used as a patch electrode for SMT mounting on a circuit board or the like, and the other part is used as a side electrode and attached to the side of the magnetic component. The bent part of the electrode has a rounded corner transition, resulting in a gap between the bent part and the surface to be mounted such as the circuit board. When soldering the patch electrode, the solder needs to first fill this gap, which easily causes the solder not to expose or rarely expose on the side electrode. When using AOI technology, it is difficult to collect the solder image along the direction parallel to the side electrode, resulting in a detection failure, and thus giving a result of unqualified welding quality, affecting the effective monitoring of SMT quality. Summary of the Utility Model
[0003] In view of this, this application provides an electrode, a magnetic component, and a welding structure, which can improve the problem that the rounded corner transition at the bent part of the existing electrode easily affects the AOI result and the effective monitoring of SMT quality.
[0004] An electrode provided by this application includes:
[0005] A first main electrode;
[0006] A second main electrode;
[0007] A transition electrode, arranged between the first main electrode and the second main electrode along the extending direction of the electrode. The transition electrode includes at least one first sub-transition electrode and at least one second sub-transition electrode arranged along the width direction of the electrode; along the extending direction of the electrode, both ends of the first sub-transition electrode are respectively connected to the first main electrode and the second main electrode, and one end of the second sub-transition electrode is connected to one of the first main electrode and the second main electrode, and the other end is not connected to the other of the first main electrode and the second main electrode.
[0008] Optionally, the first main electrode and the second main electrode are perpendicular to each other, and the first main electrode is a patch electrode; one end of the second sub-transition electrode is connected to the second main electrode, and the other end of the second sub-transition electrode is located outside one side corresponding to the first main electrode.
[0009] Optionally, the second sub-transition electrode and the second main electrode are in the same plane.
[0010] Optionally, the minimum distance between the other end of the second sub-transition electrode and the plane where the first main electrode is located is H, and 0 ≤ H ≤ 0.3 mm.
[0011] Optionally, the side surface of the other end of the second sub-transition electrode is attached to one side corresponding to the first main electrode.
[0012] Optionally, along the width direction of the electrode, the first sub-transition electrode and the second sub-transition electrode are arranged alternately in sequence.
[0013] Optionally, the first main electrode, the second main electrode and the transition electrode are integrally formed components.
[0014] Optionally, the sum of the widths of the first sub-transition electrodes is D1, the sum of the widths of the second sub-transition electrodes is D2, and 0.5 * D2 < D1 ≤ 2 * D2.
[0015] A magnetic component provided by the present application includes:
[0016] A winding;
[0017] A magnetic main body, the winding is coated in the magnetic main body; and,
[0018] Two electrodes as described in any one of the above, the two electrodes are arranged oppositely, the first main electrodes of the two electrodes are arranged on the first surface of the magnetic main body and are arranged oppositely, the second main electrodes of the two electrodes are respectively arranged on the second surface and the third surface of the magnetic main body, the second surface and the third surface are arranged oppositely and are both vertically connected to the first surface, and the two ends of the winding are respectively electrically connected to the second main electrodes of the two electrodes.
[0019] A welding structure provided by the present application includes a circuit board, and an electrode or a magnetic component as described in any one of the above, one of the first main electrode and the second main electrode is welded to the circuit board by solder, and the solder overflows outside the other end of the second sub-transition electrode.
[0020] As described above, in the electrode of the present application, one end of the second sub-transition electrode is connected to one of the first main electrode and the second main electrode, and the other end is not connected to the other of the first main electrode and the second main electrode. That is, the second sub-transition electrode that does not participate in bending is provided at the bending portion of the electrode. When performing SMT on the electrode, no rounded transition area will be formed between the second sub-transition electrode and the welding surface (i.e., the plane where the first main electrode is used as the patch electrode), so that the solder will be exposed outside the second sub-transition electrode. When using AOI technology, the solder image can be collected along the direction parallel to the side electrode (i.e., the second main electrode), and the welding quality can be judged based on this, so as to effectively monitor the SMT quality. Description of the Drawings
[0021] Figure 1 is a schematic structural diagram of a magnetic component provided by an embodiment of the present application;
[0022] Figure 2 is Figure 1 the schematic structural diagram after the inductor shown is mounted on the circuit board;
[0023] Figure 3 is Figure 1 the schematic structural diagram of the two electrodes of the inductor shown;
[0024] Figure 4 is Figure 3 the schematic connection diagram of the two electrodes and the winding shown;
[0025] Figure 5 is a schematic structural diagram of another magnetic component provided by an embodiment of the present application;
[0026] Figure 6 is Figure 5 the schematic structural diagram after the inductor shown is mounted on the circuit board;
[0027] Figure 7 is Figure 5 the schematic structural diagram of the two electrodes of the inductor shown;
[0028] Figure 8 is Figure 7 the schematic connection diagram of the two electrodes and the winding shown;
[0029] Figures 9 to 12 is the schematic connection diagram of another four electrodes and the winding provided by an embodiment of the present application.
[0030] Magnetic Component 1
[0031] Winding 10
[0032] Magnetic Body 20
[0033] First Surface 21 Second Surface 22 Third Surface 23
[0034] Fourth surface 24, fifth surface 25, sixth surface 26
[0035] Recessed area 21a
[0036] Electrode / First electrode / Second electrode 30
[0037] First main electrode 31, second main electrode 32, transition electrode 33, extension 34
[0038] First sub-transition electrode 331, second sub-transition electrode 332
[0039] Circuit board 40
[0040] Solder 40a Specific embodiments
[0041] To solve the above-mentioned technical problems existing in the prior art, the present application provides an electrode, a magnetic component, and a welding structure. These several protection themes are based on the same concept, and the principles for solving problems are basically the same or similar. The implementation manners of each protection theme can be referred to each other, and the repeated parts will not be elaborated.
[0042] In the electrode provided by the present application, the electrode includes a first main electrode, a second main electrode, and a transition electrode connecting these main electrodes. The transition electrode includes at least one first sub-transition electrode and at least one second sub-transition electrode arranged along the width direction of the electrode; along the extension direction of the electrode, both ends of the first sub-transition electrode are respectively connected to the first main electrode and the second main electrode, and one end of the second sub-transition electrode is connected to one of the first main electrode and the second main electrode, and the other end is not connected to the other of the first main electrode and the second main electrode. That is, a second sub-transition electrode that does not participate in the bending is provided at the bending part of the electrode. When performing SMT on the electrode, no rounded transition area will be formed between the second sub-transition electrode and the welding surface (i.e., the plane where the first main electrode is the patch electrode), so that the solder will be exposed outside the second sub-transition electrode. When using AOI technology, the solder image can be collected along the direction parallel to the side electrode (i.e., the second main electrode), and the welding quality can be judged based on this, so as to effectively monitor the SMT quality.
[0043] In the electrode, magnetic component, and welding structure provided by the present application, the specific forms of parameters such as the shapes, quantities, and sizes of the first main electrode, the second main electrode, the transition electrode, and the magnetic component can be determined according to the requirements of the actual scenario. For example, the electrode can be the end electrode of the magnetic component, the magnetic component can be an inductor, and its magnetic main body can be the following Figure 1 and Figure 2 shown rectangular body.
[0044] To make the objectives, technical solutions, and advantages of this application clearer, the following uses a magnetic component as an inductor and the electrodes as the end electrodes of the inductor as an example, and in combination with specific embodiments and corresponding drawings, clearly describes the technical solutions of this application. Obviously, the embodiments described below are only a part of the embodiments of this application, rather than all the embodiments. Without conflict, the various embodiments and their technical features described below can be combined with each other, and they also belong to the technical solutions of this application.
[0045] In the description of the embodiments of this application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the technical solutions of the corresponding embodiments, rather than indicating or implying that the device or component must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as a limitation to this application.
[0046] For the convenience of describing and understanding the solution of this application, in combination with Figures 1 to 12 the placement orientation shown, in the following text, the width direction of the magnetic component taking the inductor as an example is called the first direction x, the thickness direction (or alternatively called the "height direction") is called the second direction y, and the length direction is called the third direction z. The first direction x, the second direction y, and the third direction z are perpendicular to each other in pairs and can be regarded as the three coordinate axes of a three-dimensional rectangular coordinate system. It should be understood that the so-called perpendicular throughout this application does not require the angle between the two to be exactly 90°, but allows a deviation of, for example, ±10°, that is, the so-called perpendicular can be understood as the angle between any two directions being 80° to 100°. Similarly, the so-called parallel throughout this application does not require the angle between the two to be exactly 0° or 180°, but allows a deviation of, for example, ±10°, that is, the so-called parallel can be understood as the angle between any two directions being 0° to 10° or 170° to 190°.
[0047] Please refer to Figures 1 to 4 together. The magnetic component 1 of this example includes a winding 10, a magnetic body 20, and two electrodes 30, which are respectively called the first electrode 30 and the second electrode 30.
[0048] The winding 10 is a wound structural member, and its shape and number of winding turns can be determined according to the actual scenario. For example, the winding 10 can be wound by a wire (such as an enameled wire) as shown in, for example, Figure 1 , Figure 8 , Figure 9 , Figure 10 . Or, the winding 10 is formed by, for example, Figure 11 and Figure 12The strip-shaped (or long strip-shaped sheet) conductor is wound around the axis turn by turn. At this time, the conductor may include a body and an insulating layer coated on the outer surface of the body. The body is a conductive member. Along the second direction y, one end of the conductor may be located on the upper side of the winding 10, and the other end may be located on the lower side of the winding 10.
[0049] The first electrode 30 and the second electrode 30 are arranged on the outer surface of the magnetic body 20 along the first direction x and are respectively electrically connected to both ends of the winding 10. For example, one of the first electrode 30 and the second electrode 30 may cover the blank area located in the outer circle and be electrically connected to the body in the blank area of the outer circle, and the other covers the blank area located in the inner circle and is electrically connected to the body in the blank area of the inner circle. The first electrode 30 and the second electrode 30 are both conductive members. For example, they may both be sheet-shaped or strip-shaped structural members bent into a preset shape. The widths of the two may be the same, and the electrical conductivities may also be the same.
[0050] The shapes of the first electrode 30 and the second electrode 30 can be adaptively changed according to the assembly scenario. For example, in Figure 1 and Figure 2 In the shown scenario, the magnetic body 20 is a rectangular body. The magnetic body 20 wraps the winding 10 therein. The magnetic body 20 has six surfaces, namely a first surface 21, a second surface 22, a third surface 23, a fourth surface 24, a fifth surface 25 and a sixth surface 26. The first surface 21 and the fourth surface 24 are arranged opposite to each other along the second direction y. The second surface 22 and the third surface 23 are arranged opposite to each other along the first direction x and are both perpendicularly connected to the first surface 21. Of course, they are also both perpendicularly connected to the fourth surface 24. The fifth surface 25 and the sixth surface 26 are arranged opposite to each other along the third direction z and are both perpendicularly connected to the second surface 22. Of course, they are also both perpendicularly connected to the third surface 23.
[0051] Adaptively, as Figure 3 and Figure 4 Shown, taking the first electrode 30 and the second electrode 30 to be the same as an example, a single electrode 30 includes a first main electrode 31, a second main electrode 32 and a transition electrode 33. Along the extending direction of the electrode 30, the transition electrode 33 is arranged between the first main electrode 31 and the second main electrode 32. The transition electrode 33 includes at least one first sub-transition electrode 331 and at least one second sub-transition electrode 332 arranged along the width direction (i.e., the third direction z) of the electrode 30. In Figures 1 to 4In the illustrated scenario, the transition electrode 33 is exemplarily shown with a first sub-transition electrode 331 and two second sub-transition electrodes 332. The first sub-transition electrode 331 is disposed between the two second sub-transition electrodes 332. Along the extending direction of the electrode 30, both ends of the first sub-transition electrode 331 are respectively connected to the first main electrode 31 and the second main electrode 32. One end (which can be referred to as the "first end") of the second sub-transition electrode 332 is connected to the second main electrode 32, and the other end (which can be referred to as the "second end") is not connected to the first main electrode 31. Optionally, the first main electrode 31, the second main electrode 32, and the transition electrode 33 are integrally formed components, for example, they can be formed in one stamping operation.
[0052] In the magnetic element 1 taking an inductor as an example, each electrode 30 is in a bent state, the transition electrode 33 can be regarded as a bent transition region, and the first main electrode 31 and the second main electrode 32 are perpendicular to each other.
[0053] The first main electrodes 31 of the two electrodes 30 are both disposed on the first surface 21 of the magnetic body 20 and are oppositely arranged along the first direction x, and are used as the patch electrodes for performing SMT. For example, two recessed areas 21a oppositely arranged along the first direction x are provided on the first surface 21 of the magnetic body 20, and the first main electrodes 31 of the two electrodes 30 are respectively attached and disposed in the corresponding recessed areas 21a. Optionally, the two recessed areas 21a are aligned. For example, the depths of the two recessed areas 21a can be equal, so that the first main electrodes 31 of the two electrodes 30 can be flush with the first surface 21 of the magnetic body 20, so that the coplanarity of the winding 10 on this side is relatively high. Or, the first main electrodes 31 of the two electrodes 30 protrude from the first surface 21 of the magnetic body 20, and the protruding height can be determined adaptively according to actual requirements. For example, the protruding height does not exceed 0.2 mm. In other examples, the first surface 21 of the magnetic body 20 can be an integral plane, that is, the two recessed areas 21a are not provided, and the first main electrodes 31 of the first electrode 30 and the second electrode 30 are disposed on this integral plane, and thus can also protrude from the first surface 21 of the magnetic body 20.
[0054] The second main electrode 32 of the first electrode 30 can be attached and disposed on the second surface 22 of the magnetic body 20, and the second main electrode 32 of the second electrode 30 can be attached and disposed on the third surface 23 of the magnetic body 20. The second main electrodes 32 of the two electrodes 30 can be regarded as the two side electrodes of the magnetic element 1. The two electrodes 30 can also be respectively provided with extending portions 34, and the two extending portions 34 are built in the magnetic body 20 and are connected to the corresponding second main electrodes 32. The two ends of the winding 10 are respectively electrically connected to the two extending portions 34.
[0055] Combined Figures 1 to 4As shown, for either the first electrode 30 or the second electrode 30, the second sub-transition electrode 332 is in the same plane as the second main electrode 32, that is, in the y-z plane. The second end (which can be referred to as the "lower end") of the second sub-transition electrode 332 is outside a corresponding side of the first main electrode 31 (i.e., the side of the first main electrode 31 facing the second main electrode 32). Optionally, the side surface of the second end of the second sub-transition electrode 332 is in contact with a corresponding side of the first main electrode 31, that is, the second end of the second sub-transition electrode 332 is perpendicularly abutted against the first main electrode 31, so as to reduce the gap between the transition electrode 33 and the welding surface (i.e., the plane where the first main electrode 31 is located), avoid the filling of solder 40a in this area during subsequent SMT, facilitate the exposure of the solder 40a outside the second sub-transition electrode 332, and ensure that the solder 40a image can be collected in a direction parallel to the second main electrode 32 when using the AOI technology.
[0056] When performing SMT on the magnetic component 1 taking this inductor as an example, in combination with Figure 1 As shown, taking the magnetic component 1 mounted on the circuit board 40 as an example, the first surface 21 of the magnetic component 1 is oriented and placed at a preset position (such as a preset pad) of the circuit board 40. The first main electrode 31 and the preset pad of the circuit board 40 are soldered by solder. Since there is a second sub-transition electrode 332 that does not participate in bending at the bending part of the electrode 30, when performing SMT on the electrode 30 and the circuit board 40, no fillet transition area will be formed between the second sub-transition electrode 332 and the welding surface (i.e., the plane where the first main electrode 31 is the patch electrode), so that the solder 40a will overflow outside the second sub-transition electrode 332 and be exposed outside the second sub-transition electrode 332 after curing. When using the AOI technology, the image of the solder 40a can be collected in a direction parallel to the side electrode (i.e., the second main electrode 32), and the welding quality can be judged based on this, so as to effectively monitor the SMT quality. As Figure 2 As shown, a fillet transition area will be formed between the first sub-transition electrode 331 and the welding surface, and the solder 40a will fill the corresponding fillet transition area and will not overflow outside the first sub-transition electrode 331, and will not be exposed outside the first sub-transition electrode 331 after curing.
[0057] Optionally, the minimum distance between the second end of the second sub-transition electrode 332 and the plane where the first main electrode 31 is located (i.e., the x-z plane) is H, that is, along the reverse direction of the second direction y, the height by which the second end of the second sub-transition electrode 332 protrudes from the plane where the first main electrode 31 is located is H, and 0 ≤ H ≤ 0.3 mm. By controlling H within this threshold value, while stably soldering the first main electrode 31 and the circuit board 40, it can be ensured that the solder can overflow and be exposed outside the second sub-transition electrode 332 after curing.
[0058] Optionally, in any one of the electrodes 30, the sum of the widths of the first sub-transition electrodes 331 is D1, and the sum of the widths of the second sub-transition electrodes 332 is D2, and the following condition is satisfied: 0.5*D2 < D1 ≤ 2*D2. In this way, for any one of the electrodes 30, at least more than half of the width of the transition region between the first main electrode 31 and the second main electrode 32 can expose the solder 40a, further ensuring that when using the AOI technology, an image of the solder 40a can be collected along the direction parallel to the side electrode (i.e., the second main electrode 32), and it can ensure that the electrically connected area is large, the connection is stable while reducing the impedance.
[0059] Optionally, for any one of the electrodes 30, along the width direction of the electrode 30, the first sub-transition electrodes 331 and the second sub-transition electrodes 332 are arranged alternately, which can ensure a relatively stable connection between the first main electrode 31 and the second main electrode 32 through the transition electrode 33.
[0060] Based on the description of the foregoing example, the difference is that, for example, referring together to Figures 4 to 6 as shown, the transition electrode 33 of any one of the electrodes 30 may include two first sub-transition electrodes 331 and one second sub-transition electrode 332, and the second sub-transition electrode 332 is disposed between the two first sub-transition electrodes 331. It should be understood that for any one of the electrodes 30, the transition electrode 33 may include other first numbers of first sub-transition electrodes 331 and other second numbers of second sub-transition electrodes 332, and the arrangement may also be determined adaptively. In addition, the structural design of the two electrodes 30 can be determined adaptively according to the structural design of the winding 10. For example, referring together to Figure 9 and Figure 10 as shown, the height of the second main electrode 32 of any one of the electrodes 30 (i.e., the length along the second direction y) is small, and it can be regarded as the first main electrode 31 of the electrode 30 being bent toward the fourth surface 24 and finally being attached to the fourth surface 24 (and the recessed area 21a provided on the fourth surface 24), Figure 9 and Figures 1 to 4 the structures of the transition electrodes 33 shown are the same, Figure 10 and Figures 5 to 8 the structures of the transition electrodes 33 shown are the same; or for another example, referring together to Figure 11 and Figure 12 as shown, one end of the winding 10 is located on the upper side and the other end is located on the lower side, the heights of the two electrodes 30 are different, the first main electrodes 31 of the two electrodes 30 are bent toward the first surface 21 and finally attached to the first surface 21 (and the recessed area 21a provided on the first surface 21), Figure 11 and Figures 1 to 4 the structures of the transition electrodes 33 shown are the same, Figure 12 and Figures 5 to 8 the structures of the transition electrodes 33 shown are the same.
[0061] An embodiment of the present application further provides a welding structure, including a circuit board, and the electrode 30 described in any of the foregoing examples or the magnetic element 1 described in any of the foregoing examples. One of the first main electrode 31 and the second main electrode 32 is soldered to the circuit board 40 by solder, and the solder overflows and is located outside the other end (i.e., the second end) of the second sub-transition electrode 332 after curing. This welding structure at least has the beneficial effects produced by the corresponding example of the electrode 30 or the magnetic element 1, which will not be elaborated here.
[0062] An embodiment of the present application further provides an electrode, including a first main electrode, a second main electrode, and a transition electrode. Along the extending direction of the electrode, the transition electrode is disposed between the first main electrode and the second main electrode. The transition electrode includes at least one first sub-transition electrode and at least one second sub-transition electrode disposed along the width direction of the electrode. Along the extending direction of the electrode, two ends of the first sub-transition electrode are respectively connected to the first main electrode and the second main electrode, and one end of the second sub-transition electrode is connected to one of the first main electrode and the second main electrode, and the other end is not connected to the other of the first main electrode and the second main electrode. This electrode can refer to the structural design of the foregoing electrode 30 and at least has the same beneficial effects.
[0063] However, it should be noted that this electrode can present a structural design other than the foregoing Figures 1 to 6 shown electrode 30. For example, the bent first main electrode and the second main electrode are not perpendicular, but can present an acute angle or an obtuse angle, that is, the bending degree is different.
[0064] The foregoing are only partial embodiments of the present application, and thus do not limit the patent scope of the present application. For those of ordinary skill in the art, any equivalent structural transformation made by using the content of this specification and the drawings is equally included in the patent protection scope of the present application.
[0065] Although the terms "first", "second", etc. are used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. In addition, the singular forms "a", "an", and "the" are also intended to include the plural forms. The terms "or" and "and / or" are interpreted as inclusive, or mean any one or any combination. An exception to this definition only occurs when the combination of elements, functions, steps, or operations are inherently mutually exclusive in some way.
Claims
1. An electrode, characterized in that, Comprising: A first main electrode; A second main electrode; A transition electrode, arranged between the first main electrode and the second main electrode along the extending direction of the electrode, the transition electrode comprising at least one first sub-transition electrode and at least one second sub-transition electrode arranged along the width direction of the electrode; along the extending direction of the electrode, both ends of the first sub-transition electrode are respectively connected to the first main electrode and the second main electrode, one end of the second sub-transition electrode is connected to one of the first main electrode and the second main electrode, and the other end is not connected to the other of the first main electrode and the second main electrode.
2. The electrode according to claim 1, wherein The first main electrode and the second main electrode are perpendicular to each other, and the first main electrode is a patch electrode; One end of the second sub-transition electrode is connected to the second main electrode, and the other end of the second sub-transition electrode is located outside one side corresponding to the first main electrode.
3. The electrode according to claim 2, characterized in that, The second sub-transition electrode and the second main electrode are in the same plane.
4. The electrode according to claim 2, wherein, The minimum distance between the other end of the second sub-transition electrode and the plane where the first main electrode is located is H, and 0 ≤ H ≤ 0.3 mm.
5. The electrode according to claim 2, wherein The side surface of the other end of the second sub-transition electrode is attached to one side corresponding to the first main electrode.
6. The electrode according to any one of claims 1 to 5, characterized in that, Along the width direction of the electrode, the first sub-transition electrode and the second sub-transition electrode are arranged alternately in sequence.
7. The electrode according to claim 1, characterized in that, The first main electrode, the second main electrode and the transition electrode are integrally formed components.
8. The electrode according to claim 1, wherein The sum of the widths of the first sub-transition electrodes is D1, the sum of the widths of the second sub-transition electrodes is D2, and 0.5 * D2 < D1 ≤ 2 * D2.
9. A magnetic component, characterized in that, Comprising: A winding; A magnetic body, the winding being coated within the magnetic body; And, Two electrodes as described in any one of claims 1 to 8, the two electrodes being arranged oppositely, the first main electrodes of the two electrodes being arranged on the first surface of the magnetic body and being arranged oppositely, the second main electrodes of the two electrodes being respectively arranged on the second surface and the third surface of the magnetic body, the second surface and the third surface being arranged oppositely and both being perpendicularly connected to the first surface, and both ends of the winding being electrically connected to the second main electrodes of the two electrodes respectively.
10. A welding structure, characterized in that, Comprising a circuit board and an electrode as described in any one of claims 1 to 8 or a magnetic component as described in claim 9, one of the first main electrode and the second main electrode is soldered to the circuit board by solder, and the solder overflows outside the other end of the second sub-transition electrode.