Conductor member, processing assembly, multichannel inductive device and electronic device

Abstract

The application relates to the technical field of inductor devices, and discloses a conductor component, a processing assembly, a multi-channel inductor device and electronic equipment. The multi-channel inductor device comprises a magnetic core and a coil. The coil is arranged in the magnetic core. The coil comprises oppositely-arranged sections, connecting sections arranged between the oppositely-arranged sections and connected to the oppositely-arranged sections respectively, and terminal pins arranged at two ends of the oppositely-arranged sections. The end portions of the oppositely-arranged sections are bent towards the terminal pins and connected to the terminal pins, so that the terminal pins protrude out of the outer wall of the magnetic core. At least one of the terminal pins is provided with a cutout away from one end of the oppositely-arranged section. The cutout and the end face of the terminal pin are arranged at a set inclination angle. The application improves the reliability of the inductor device.

Description

Technical Field

[0001] This application relates to the field of inductor technology, specifically to a conductor component, a processing assembly, a multi-channel inductor, and an electronic device. Background Technology

[0002] In the field of electronic component manufacturing, inductors are one of the core passive components. Their performance and reliability directly affect the stable operation of the entire circuit system. In the manufacturing process of inductors, especially when separating the pre-made coil from the external support material (material strip frame), the punching separation can easily produce burrs, microcracks or uncontrollable plastic deformation on the terminals. These micro-mechanical damages not only affect the aesthetics of the terminals, but also threaten their structural integrity, leading to a decrease in terminal strength and directly damaging the coplanarity of the mounting surface of the inductor. Utility Model Content

[0003] In view of this, this application provides a conductor component, a processing assembly, a multi-channel inductor, and an electronic device to solve the aforementioned technical problems.

[0004] In a first aspect, embodiments of this application disclose a multi-channel inductor device, comprising: magnetic core; A coil is placed inside the magnetic core. The coil includes spaced-apart opposing segments and connecting segments located between the opposing segments and respectively connecting the opposing segments. Each opposing segment has a terminal pin at both ends. The end of the opposing segment is bent toward the terminal pin and connected to the terminal pin, so that the terminal pin protrudes from the outer wall of the magnetic core. At least one of the terminal pins has a cut at the end away from the opposing segment, and the cut maintains a set angle with the end face of the terminal pin.

[0005] In one possible example, the terminal pin includes an internal portion enclosed within the magnetic core and an external portion exposed outside the magnetic core, with the cutout connected to the external portion.

[0006] In one possible example, the external portion protrudes relative to the end face and side face of the magnetic core, and the cutout corresponds to the connection between the end face and side face of the magnetic core.

[0007] In one possible example, if the height of the external portion protruding from the side of the magnetic core is set to G1, then 0 ≤ G1 ≤ 5 mm.

[0008] In one possible example, the cut is inclined inward from the portion of the outer portion that protrudes from the side of the magnetic core toward the portion of the outer portion that protrudes from the end face of the magnetic core.

[0009] In one possible example, let G2 be the inward length of the portion of the cut that protrudes from the side of the magnetic core relative to the outer portion, and G3 be the inclination height of the portion of the cut that protrudes from the end face of the magnetic core relative to the outer portion. Then 0 < G2 ≤ ​​0.5 mm and 0 < G3 ≤ 4 mm.

[0010] In one possible example, at least one of the connecting segments is connected to the opposite segments at both ends, and the connection point between the connecting segment and the opposite segment is located at a non-central location of the opposite segment.

[0011] Secondly, this application discloses a processing assembly, including a strip frame and a coil as described in any of the above embodiments. A plurality of the coils are evenly arranged in the strip frame. The strip frame is provided with an auxiliary beam. The auxiliary beam is integrally connected to the terminal pin of the conductor component. The cutout of the conductor component is located between the terminal pin and the auxiliary beam.

[0012] Thirdly, embodiments of this application disclose a conductor component, including the coil described in any of the above embodiments.

[0013] Fourthly, embodiments of this application disclose an electronic device including the multi-channel inductor device described in the above embodiments.

[0014] In summary, compared with the prior art, this application discloses a conductor component, a processing assembly, a multi-channel inductor, and an electronic device. The multi-channel inductor includes a magnetic core, i.e., a coil, which is placed inside the magnetic core. The coil includes spaced-apart opposing segments and connecting segments located between the opposing segments and respectively connected to the opposing segments. Both ends of the opposing segments are provided with terminal feet. The ends of the opposing segments are bent toward the terminal feet and connected to the terminal feet, so that the terminal feet protrude from the outer wall of the magnetic core. At least one terminal foot has a cut at the end away from the opposing segment, and the cut maintains a set tilt angle with the end face of the terminal foot. That is, the reliability of the inductor is improved by the above-mentioned settings. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the inductor device of this application; Figure 2 This is a perspective view of the three-dimensional structure of the inductor device of this application; Figure 3 This is a side perspective view of the inductor device of this application; Figure 4 yes Figure 3 Enlarged view of point A; Figure 5 This is a top perspective view of the inductor device of this application; Figures 6a to 6e This is a schematic diagram of the circuit selection for the inductor device in this application; Figure 7 This is a schematic diagram of the structure of the first processing component of this application; Figure 8 This is a schematic diagram of the structure of the second processing component of this application; Figure 9 yes Figure 7 Enlarged view of point B; Figure 10 This is a top view of another type of coil in this application. Detailed Implementation

[0017] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the claims.

[0018] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, components, features, and elements with the same names in different embodiments of this application may have the same meaning or different meanings, the specific meaning of which must be determined by its interpretation in that specific embodiment or further in conjunction with the context of that specific embodiment.

[0019] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0020] In the following description, the use of suffixes such as "module," "part," or "unit" to denote elements is solely for the purpose of illustrative purposes and has no specific meaning in itself. Therefore, "module," "part," or "unit" may be used interchangeably.

[0021] In the description of this application, it should be noted that the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] The technical solutions shown in this application will be described in detail below through specific embodiments. It should be noted that the order of description of the following embodiments is not intended to limit the priority of the embodiments.

[0023] Please refer to Figures 1 to 5 The multi-channel inductor in this application embodiment includes a magnetic core 1 and a coil 2.

[0024] In the specific implementation process, the coil 2 is placed inside the magnetic core 1. The coil 2 includes a counter section 3 and a connecting section 4. The connecting section 4 is located between the counter sections 3 arranged at intervals and is connected to the counter sections 3 respectively. Both ends of the counter section 3 are provided with terminal feet 6. The end of the counter section 3 is bent toward the terminal feet 6 and then integrally connected with the terminal feet 6. When the magnetic core 1 of the inductor is embedded in the counter section 3 and the connecting section 4 of the coil 2, the terminal feet 6 can stably protrude from the outer wall of the magnetic core 1 to form a reliable external electrical connection point.

[0025] And at least one terminal 6 has a cut 7 at the end away from the opposite section 3. The cut 7 and the end face of the terminal 6 are at a set angle. Through the design of the cut 7, the coil 2 can be quickly and cleanly separated from the external support material.

[0026] In the preferred manufacturing process of multi-channel inductor devices, several coils 2 can be integrally formed on an external support material and then combined with the magnetic core 1 through injection molding or other methods. After the device is finally formed, it needs to be separated from this external support material. The cut 7 provides structural protection for the separation step and sets the tilt angle to provide ideal guidance and stress concentration points for separation processes such as punching. This makes the separation process fast and accurate, and the separation surface of the terminal pins 6 is clean and smooth, without burrs or tears. This allows the multi-channel inductor device to have excellent mounting coplanarity and improve device reliability.

[0027] It should be noted that the set tilt angle ensures that the end of the cut 7 relative to the terminal pin 6 is a slope. Adjusting the set tilt angle appropriately can ensure that the cut 7 has a sufficient slope relative to the terminal pin 6 to generate an effective guiding force, so as to facilitate the quick and clean separation of the coil 2 from the external support material.

[0028] Furthermore, the number of terminal pins 6 can be distributed on the magnetic core 1 in a manner corresponding to the number of ends of the opposing section 3. Each terminal pin 6 is integrally connected to the end of the opposing section 3, that is, the terminal pin 6 can be regarded as part of the end of the opposing section 3. Thus, the coil 2 and the terminal pin 6 are an integral structure, making the connection between the terminal pin 6 and the magnetic core 1 more robust. This integrated connection method has high mechanical strength and can better withstand mechanical and thermal stresses during installation and use, thereby improving the overall reliability of the device.

[0029] Furthermore, the end of the opposing section 3 is bent towards the terminal pin 6 and integrally connected with the terminal pin 6. When the opposing section 3 and the connecting section 4 of the coil 2 are embedded in the magnetic core 1, the terminal pin 6 protrudes from the outer wall of the magnetic core 1, forming a reliable external electrical connection point. Here, protruding from the outer wall of the magnetic core 1 may include the upper end face 1a, the lower end face 1b, or the side of the magnetic core 1. This allows for diverse mounting methods for the inductor device. That is, the device can be surface mounted like a traditional surface mount component, or it can be vertically mounted or side-soldered using the terminal pin 6 portion on the side of the magnetic core 1. This provides more possibilities for the three-dimensional layout and space optimization of the receiving target (such as a PCB board) to adapt to various narrow or non-standard mounting spaces and improve the flexibility of the device.

[0030] Optionally, after the terminal pin 6 protrudes from the end face of the magnetic core 1, it can continue to extend parallel to the end face. In this way, the terminal pin 6 and the magnetic core 1 can be assembled in various ways by folding this extended part. For example, after the terminal pin 6 protrudes from the lower end face 1b of the magnetic core 1, it can continue to extend parallel to the lower end face 1b. Then, the extended part can be folded and attached to the side of the magnetic core 1, or further folded and attached to the upper end face 1a of the magnetic core 1, thus completing the three-dimensional structural design of the terminal pin 6.

[0031] Meanwhile, when using the traditional mounting method for multi-channel inductors, i.e., when connecting the terminal pins 6 protruding from the end face of the magnetic core 1 to the target receiver, the terminal pins 6 protruding from the side of the magnetic core 1 physically constitute a protective part on the side of the magnetic core 1. This protective part can provide effective mechanical protection for the side of the magnetic core 1. In practical applications, if other components or tools accidentally touch the side of the device during subsequent assembly or maintenance, they will first come into contact with the terminal pins 6, rather than the relatively fragile magnetic core 1 itself. This is equivalent to setting up a "protective barrier" for the side of the magnetic core 1, thereby effectively avoiding chipping or overall damage to the magnet edges and corners caused by accidental collisions or scratches, and improving the reliability of the device during production and use.

[0032] In a preferred embodiment of this invention, the coil 2 is designed to precisely shape the magnetic circuit inside the core 1 of the multi-channel inductor. Specifically, the connection point between the connecting segment 4 and the opposing segment 3 is located off-center from the opposing segment 3. This off-center connection design effectively breaks the symmetry of the magnetic circuit, dividing the gap 5 formed between two adjacent opposing segments 3 into two magnetic circuit regions of different areas. This provides the inductor with a choice of multiple circuit paths. The unequal magnetic circuit regions mean that when current flows through the coil 2, by selecting different terminals 6 as the input and output terminals, the current can be forced to flow through different circuits constructed by the opposing segment 3 and the connecting segment 4. Different circuits will dominantly utilize their corresponding specific volume magnetic circuit regions as the main magnetic flux path, thus directly leading to different inductance values ​​ultimately exhibited by the device. Therefore, multiple circuit paths can be provided for a single inductor, achieving the key effect of a single device having multiple different inductance values, greatly improving the device's integration and application flexibility.

[0033] Meanwhile, different terminal pin 6 selections mean that current will flow through different conductive loops constructed by the opposing segment 3 and the connecting segment 4. So when any selected loop is working, the opposing segments 3 that do not have current flowing through are not just idle. These non-current opposing segments 3 can serve as effective heat conduction paths to assist the device in heat dissipation. Specifically, the Joule heat generated in the current-carrying wires when the device is working can be transferred to these non-working opposing segments 3 through the coil itself and the surrounding magnetic core material. This significantly increases the effective heat exchange area with the internal magnetic core 1 and the external environment, thereby accelerating the rate at which the heat generated by the device is diffused to the outside.

[0034] All parts of coil 2, whether or not they participate in conduction, together form a distributed internal heat dissipation network. Combined with the large area characteristic of magnetic core 1 itself, this effectively improves the overall heat dissipation capacity of the device, thereby helping to maintain the reliability and performance stability of the device under high temperature or high current operating conditions.

[0035] Preferably, the coil 2 has a plate-shaped conductor structure design. The coil 2 can be made by stamping, etching or other precision forming processes into a flat metal plate with a specific shape, which can have a larger surface area to volume ratio and increase the contact area with the magnetic core 1. This greatly optimizes the heat conduction path. The heat generated during operation can be transferred to the magnetic core 1 and dissipated into the environment more efficiently through the entire plate surface, thereby effectively reducing the temperature rise of the device. At the same time, the flat and wide conductor structure can make more efficient use of the window area inside the magnetic core 1 and reduce leakage flux. In addition, in high-frequency applications, the plate-shaped conductor helps to reduce the negative impact of the skin effect and improve the Q value and efficiency of the device.

[0036] Preferably, the coil 2 is placed horizontally inside the magnetic core 1. Specifically, "horizontal placement" means that the extension plane of the main body of the coil 2, that is, its effective conductive circuit (composed of the opposing section 3 and the connecting section 4), is parallel to the upper / lower end face of the magnetic core 1 and is covered and encapsulated by the magnetic core 1. This makes it easier for the magnetic field lines of the device to be effectively guided and constrained by the magnetic core material, and also makes it easier for the opposing section 3 of the coil 2 to naturally extend toward the edge of the magnetic core 1, thereby realizing diversified installation of the device.

[0037] Preferred, continue to combine Figure 5 The coil 2 is arranged in an 'H' shape in the vertical projection of the upper / lower end face of the magnetic core 1. Specifically, the 'H' shape is composed of two parallel opposing segments 3 forming the two vertical sides of the 'H' shape, and a connecting segment 4 between them forming the middle crossbeam of the 'H' shape. This unique 'H' shape projection structure is the core physical basis for realizing the multi-path function in this embodiment. It intuitively reveals that the current has multiple selectable flow paths inside the magnetic core 1. By selecting different endpoints (i.e. different terminal pins 6) on the 'H' shape as the input and output of the current, the current can be forced to flow through different effective conductor lengths, and the magnetic circuit regions with different areas divided by the 'H' shape can be used to dominate, thereby ultimately obtaining multiple different inductance values ​​on a single inductor device.

[0038] Regarding the multi-channel loop selection design of this embodiment, taking the coil 2 of this application, which includes two opposing segments (3a, 3b) arranged at intervals, and a connecting segment 4 located between the two opposing segments (3a, 3b) and connected to the opposing segments (3a, 3b) respectively, as an example, the outer wall of the magnetic core 1 has four terminal pins (6a, 6b, 6c, 6d). When the inductor is connected to the pads of the PCB board 10, the inductor has at least five multi-channel loop selections, and generates different inductance values ​​accordingly. For details, please refer to... Figures 6a to 6e .

[0039] like Figure 6a As shown, the inductor is connected to the pads 101 and 102 of the PCB board 10 through the terminals 6a and 6b at both ends of the opposed section 3a, respectively. The terminals 6c and 6d at both ends of the opposed section 3b are idle. In this state, the current path of the inductor coil 2 presents the first ZY direction, and thus has the first inductance. like Figure 6bAs shown, the inductor is connected to the pads 101 and 102 of the PCB board 10 through the terminal pin 6a at one end of the opposing section 3a and the terminal pin 6d at one end of the opposing section 3b, respectively. The terminal pins 6b and 6c at the other end of the opposing section 3a are idle. In this state, the current path of the inductor coil 2 presents a second ZY flow direction, and thus has a second inductance. like Figure 6c As shown, the inductor is connected to the pads 101 and 102 of the PCB board 10 through the terminal pin 6a at one end of the opposing section 3a and the terminal pin 6c at one end of the opposing section 3b, respectively. The terminal pins 6b and 6d at the other end of the opposing section 3a are idle. In this state, the current path of the inductor coil 2 presents a third ZY flow direction, and thus has a third inductance. like Figure 6d As shown, the inductor is connected to the pads 101 and 102 of the PCB board 10 through the terminal pin 6b at one end of the opposing section 3a and the terminal pin 6d at one end of the opposing section 3b, respectively. The terminal pins 6a at the other end of the opposing section 3a and the terminal pin 6c at the other end of the opposing section 3b are idle. In this state, the current path of the inductor coil 2 presents a fourth ZY flow direction, and thus has a fourth inductance. like Figure 6e As shown, the terminal pin 6a at one end of the opposing section 3a and the terminal pin 6c at one end of the opposing section 3b of the inductor are connected to the pad 102 of the PCB board 10. The terminal pin 6b at the other end of the opposing section 3a and the terminal pin 6d at the other end of the opposing section 3b are also connected to the PCB board 102. In this state, the current path of the inductor coil 2 presents the fifth ZY direction, and thus has the fifth inductance.

[0040] Referring to the five multi-channel loop selection designs in the above examples, the multi-channel inductor of this application can force the current to flow through different loops constructed by opposing segments 3 and connecting segments 4 by selecting different terminal pins 6 as the current input and output terminals. Different loops will dominate the use of their corresponding specific volume magnetic circuit regions as the main magnetic flux path, which directly leads to different inductance values ​​of the device. Thus, multi-channel loop selection can be provided for a single inductor device, realizing the key effect of a device having multiple different inductance values, greatly improving the integration and application flexibility of the device.

[0041] Continue to combine Figure 5 In a key design detail of this embodiment, the projected dimensions of coil 2 and terminal pin 6 have been specifically optimized. Specifically, the widths of adjacent opposing segments 3 and connecting segments 4 in the vertical projection of the end face of the magnetic core 1 are not equal. Figure 5The design of K1, K2, and K3 is not arbitrary. Different terminal pin 6 connection methods correspond to different current paths and operating inductances. This application precisely sets the cross-sectional area of ​​each conductor segment by setting K1≠K2≠K3 (the projected width is directly related to its cross-sectional area). This allows each current path to have a current-carrying capacity that matches its expected operating inductance. For example, a larger width (cross-sectional area) can be designed for the opposing segment 3 or the connecting segment 4, which are mainly traversed by low-inductance, high-current paths, to reduce their DC resistance and ensure that they have a higher rated current. Conversely, for high-inductance paths, appropriate adjustments can be made. This ensures that the device can obtain a corresponding and appropriate rated current under multiple operating inductances, avoiding the bottleneck of the entire device performance due to insufficient current-carrying capacity of a certain path.

[0042] Meanwhile, coil 2 and magnetic core 1 are in a "competitive" relationship in terms of limited cross-sectional area. By selectively adjusting the width of each section of coil 2, rather than using a uniform width or narrowness, a more reasonable allocation of the cross-sectional area occupied by coil 2 and magnetic core can be achieved. This dynamic allocation allows sufficient magnetic circuit cross-section to be reserved in areas requiring high saturation characteristics to prevent magnetic saturation, provides sufficient conductor cross-section in areas requiring low DC resistance, and utilizes conductors as thermal bridges in areas requiring efficient heat dissipation. Ultimately, key performance indicators such as inductance, saturation current, heat dissipation efficiency, and DC resistance of the inductor are synergistically optimized to achieve the most balanced state of comprehensive performance, rather than unilaterally pursuing the extreme of a single indicator.

[0043] In a more complex configuration of this embodiment, refer to Figure 10 The design of the magnetic circuit can have greater flexibility and precision. Specifically, there are multiple connecting segments 4 between adjacent opposing segments 3, and the connection point between each connecting segment 4 and the opposing segment 3 is located at the non-center of the opposing segment 3, thereby realizing the fine division of the magnetic circuit and multiple sensitivity selection.

[0044] Understandably, a single connecting segment 4 divides the interval region 5 between two opposing segments 3 into two magnetic circuit regions, while multiple connecting segments 4 divide the interval region 5 into three or more sub-magnetic circuit regions of different areas and shapes at different connection point positions. When current flows through different connecting segments 4, the dominant magnetic flux path it excites will traverse these different combinations of sub-magnetic circuit regions. Since the magnetoresistance characteristics of each sub-magnetic circuit region are different, this allows a single device to provide more and more finely differentiated inductance values, thereby greatly expanding the channel selection range and application scenarios of the device.

[0045] In a preferred embodiment of this invention, the magnetic core 1 is arranged in a rectangular structure, and the magnetic core 1 has an upper end surface 1a, a lower end surface 1b, and a side surface connecting the upper end surface 1a and the lower end surface 1b.

[0046] Furthermore, in order to optimize the magnetic circuit structure and balance the performance of the components, this embodiment precisely designs the position of the coil 2 horizontally placed in the magnetic core 1. Specifically, the vertical distance between the opposing segment 3 and the upper end face 1a of the magnetic core 1 is set as H1, and the vertical distance between the opposing segment 3 and the lower end face 1b of the magnetic core 1 is set as H2, then 0.5≤H1 / H2≤2.

[0047] Therefore, to ensure the symmetry of the magnetic circuit of the inductor with coil 2 and avoid performance bias, when the H1 / H2 ratio deviates too much, it means that the opposing segment 3 is too close to the lower end face 1b or the upper end face 1a. This will result in a severe asymmetry of the magnetic reluctance of the upper and lower magnetic circuits. This will cause unexpected and excessive differences in key parameters such as inductance and saturation current when different circuits are selected, which is not conducive to the stability and prediction of performance. When H1 / H2 is between 0.5 and 2, it ensures that coil 2 is located in the near-central region of magnetic core 1, which can provide a relatively balanced magnetic flux path for the upper and lower magnetic circuits, so that the device can exhibit stable and consistent electrical performance under different installation postures and operating modes.

[0048] Furthermore, based on the constraint of 0.5≤H1 / H2≤2, the heat generated by coil 2 can be transferred almost equally to the magnetic core 1 and the external environment in both the upward and downward directions, thus optimizing the heat dissipation uniformity. At the same time, it also provides similar magnetic saturation margins for the upper and lower parts of the magnetic core 1, which together contribute to the best comprehensive balance of multiple performance indicators such as inductance accuracy, saturation current characteristics and heat dissipation efficiency of the device.

[0049] To further consolidate the above effects, preferably, the vertical distance between the opposing segment 3 and the upper end face 1a of the magnetic core 1 is set to H1, and the vertical distance between the opposing segment 3 and the lower end face 1b of the magnetic core 1 is set to H2, then 0.75≤H1 / H2≤1.

[0050] To further consolidate the above effects, optionally, the magnetic core 1 completely covers the coil 2 with a covering thickness ≥ 0.3 mm, and the covering thickness deviation of the magnetic core 1 relative to the upper / lower end face of the coil 2 is < 50%.

[0051] In a preferred implementation of this embodiment, refer to... Figure 4 The terminal pin 6 is divided into two functionally distinct areas. Specifically, the terminal pin 6 of the coil 2 includes an internal part 61 encased in the magnetic core 1 and an external part 62 exposed outside the magnetic core 1. The cutout 7 is connected to the external part 62.

[0052] Therefore, the built-in part 61 is completely enclosed inside the magnetic core 1 and tightly bonded to the magnetic material of the magnetic core 1 to achieve high-strength mechanical anchoring and efficient heat conduction between the terminal pin 6 and the magnetic core 1, while the external part 62 is the external electrical connection point.

[0053] The external portion 62 protrudes from the end face and side face of the magnetic core 1, which means that the external portion 62 is located at one corner of the magnetic core 1. The corresponding terminal pin 6 protrudes from the end face and side face of the magnetic core 1, thereby enabling the inductor to be mounted in a variety of ways. That is, the device can be surface mounted like a traditional surface mount component, or it can be mounted vertically or side-soldered using the terminal pin 6 on the side of the magnetic core 1. This provides more possibilities for the three-dimensional layout and space optimization of the receiving target, so as to adapt to various narrow or non-standard mounting spaces and improve the flexibility of the device.

[0054] The cut 7 corresponds to the connection between the end face and the side of the magnetic core 1, so that after the magnetic core 1 and the coil 2 of the inductor are assembled in batches, the inductor can be quickly and accurately separated from the external support material, ensuring that the separation surface of the terminal 6 is clean and smooth, without burrs or tears, thereby enabling the inductor to have excellent mounting coplanarity and improving the reliability of the device.

[0055] In one example, the height of the external portion 62 protruding from the side of the magnetic core 1 is set to G1, then 0≤G1≤5mm, which limits the cantilever length of the external portion 62 extending from the side of the magnetic core 1. Compared with the cutout 7, the appropriate G1 makes the external portion 62 have higher structural rigidity, which can resist the torque and vibration generated during the separation of the coil 2 from the external support material, thereby avoiding uncontrollable swinging or deformation of the terminal pin 6. At the same time, it ensures the effect of automatic optical inspection (AOI) testing after the inductor with coil 2 is mounted on the PCB board, providing ideal imaging conditions for AOI inspection, and facilitating the system to accurately judge the mounting status of the device.

[0056] To further consolidate the above effects, the height of the external part 62 protruding from the side of the magnetic core 1 is preferably 0.05mm, 0.08mm, 0.1mm, 0.3mm, 0.45mm, 0.6mm, 0.7mm, 0.8mm, 1.5mm or 1.8mm.

[0057] It should be noted that the cut 7 is inclined inward from the part of the outer part 62 that protrudes from the side of the magnetic core 1 towards the part of the outer part 62 that protrudes from the end face of the magnetic core 1.

[0058] To precisely optimize the shape of the cut 7, the inward length of the portion of the cut 7 protruding from the side of the magnetic core 1 relative to the outer part 62 is set as G2, that is, the depth of the horizontal inward cutting of the cut 7 on the side of the outer part 62 is G2, and the inclination height of the portion of the cut 7 protruding from the end face of the magnetic core 1 relative to the outer part 62 is set as G3, that is, the height of the cut 7 cutting vertically on the end face of the outer part 62 is G3. Then 0 < G2 ≤ ​​0.5 mm, 0 < G3 ≤ 4 mm.

[0059] Therefore, the cut 7 is ensured to be a mechanical structure with actual depth that can effectively guide the coil 2 to easily separate from the external support material. At the same time, G2 limits the depth of horizontal cutting of the cut 7, better preserving the complete structure of the side of the external part 62 to have sufficient mechanical strength to withstand subsequent welding stress, etc., and the limitation of G3 can prevent the cut 7 from extending too much and weakening the structural support of the root of the terminal 6. At the same time, this range also matches the height of the external part 62 protruding from the end face, ensuring the effectiveness of the cut 7 and avoiding excessive material removal. By limiting G2 and G3 within the above-mentioned preferred range, an optimized cut design that can stably obtain both excellent separation guidance function and ensure that the terminal 6 meets the requirements in terms of appearance, strength and welding performance can be obtained.

[0060] This application embodiment, through the design of the notch 7, enables quick and clean separation of the coil 2 from the external support material. As mentioned above, several coils 2 can be integrally formed on an external support material and then combined with the magnetic core 1 through injection molding or other methods. After the device is finally formed, the coil 2 is separated from this external support material, and the notch 7 provides structural protection for the separation step. In one application scenario, after several coils 2 are integrally formed on an external support material, the overall outer surface can be plated with a metal coating before being combined with the magnetic core 1. Or in another application scenario, after the coil 2 is combined with the magnetic core 1, the outer part 62 protruding from the magnetic core 1 is plated. In this case, the outer part 62, except for the break connecting the external support material, is plated with a metal coating to improve its electrical performance and long-term reliability.

[0061] Optionally, the metal coating contains at least one of tin, nickel, silver, copper, and gold.

[0062] refer to Figures 7 to 9 This application also discloses a processing assembly for efficient and large-scale production of inductor devices. The processing assembly includes a strip frame 8 and a coil 2 of any of the above embodiments.

[0063] In the specific implementation process, several coils 2 are evenly arranged in the strip frame 8. The strip frame 8 is provided with an auxiliary beam 81. The auxiliary beam 81 is integrally connected with the terminal foot 6 of the coil 2, and the cut 7 of the coil 2 is located between the terminal foot 6 and the auxiliary beam 81.

[0064] The auxiliary beam 81, serving as a connection and support structure, connects to the terminal pin 6 of each coil 2, thereby precisely positioning and fixing all coils 2 onto the strip frame 8 to form a whole. This facilitates batch processing in subsequent steps such as electroplating, transportation, and core packaging. Crucially, the cut 7 on each coil 2 is precisely machined in the connection area between the terminal pin 6 and the auxiliary beam 81. In other words, the cut 7 is located at the junction of the body of the terminal pin 6 and the auxiliary beam 81 used to connect the strip frame 8. When it is necessary to separate the formed coil 2 from the strip frame 8, a punching die can be used to punch the cut 7. Since the cut 7 has pre-weakened the material strength of the connection point and provided a clear separation path, a fast, clean, and neat separation can be achieved, thus ensuring the structural integrity and dimensional consistency of the terminal pin 6 of each coil 2 after separation.

[0065] Preferably, the entire strip frame 8, which has a large number of coils 2 fixed thereon, can be placed into a precision mold. Then, magnetic powder is filled into the mold cavity and pressed together. The strip frame 8 itself serves as a support and positioning carrier, forming a dense magnetic core 1 on each coil 2 in one batch. This allows for the initial production of a batch of inductor devices. After the magnetic core 1 is integrally formed, the cut 7 is punched using a punching die. The cut 7 provides precise guidance and stress concentration points for punching, allowing the final, independent inductor devices to be neatly and efficiently cut off from the strip frame 8. This ensures the structural integrity and dimensional consistency of the terminal pins 6 of each coil 2 after separation, and that the separated surfaces of the terminal pins 6 are clean and smooth, without burrs or tears. This results in excellent mounting coplanarity of the inductor devices and improves device reliability.

[0066] Continue to refer to Figure 1 Zhihe Figure 4 This application also discloses a conductor component, including a coil 2 as described in any of the above embodiments. For other working principles and processes of the conductor component in this embodiment, please refer to the description of the coil 2 in the above embodiment, which will not be repeated here.

[0067] This application also discloses an electronic device, including a multi-channel inductor as described in any of the above embodiments. For other working principles and processes of the electronic device in this embodiment, please refer to the description of the multi-channel inductor in the above embodiment, which will not be repeated here.

[0068] The conductor components, processing assemblies, multi-channel inductors, and electronic devices provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. It should be noted that the descriptions of each embodiment in this application have different emphases, and parts not described in detail or in a certain embodiment can be referred to the relevant descriptions of other embodiments.

[0069] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. The technical features of the technical solution of this application can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are also included within the patent protection scope of this application, as long as the combination of these technical features does not contradict each other.

Claims

1. A multi-channel inductor device, characterized in that, include: magnetic core; A coil is placed inside the magnetic core. The coil includes spaced-apart opposing segments and connecting segments located between the opposing segments and respectively connecting the opposing segments. Each opposing segment has a terminal pin at both ends. The end of the opposing segment is bent toward the terminal pin and connected to the terminal pin, so that the terminal pin protrudes from the outer wall of the magnetic core. At least one of the terminal pins has a cut at the end away from the opposing segment, and the cut maintains a set angle with the end face of the terminal pin.

2. The multi-channel inductor device as claimed in claim 1, wherein the terminal pin includes an internal portion enclosed within the magnetic core and an external portion exposed outside the magnetic core, and the cutout is connected to the external portion.

3. The multi-channel inductor device as claimed in claim 2, wherein the external portion protrudes relative to the end face and side face of the magnetic core, and the cutout corresponds to the connection between the end face and side face of the magnetic core.

4. In the multi-channel inductor device as described in claim 3, if the height of the external portion protruding from the side of the magnetic core is set to G1, then 0≤G1≤5mm.

5. The multi-channel inductor device as claimed in claim 3, wherein the cut is inclined inward from the portion of the external portion protruding from the side of the magnetic core toward the portion of the external portion protruding from the end face of the magnetic core.

6. In the multi-channel inductor device as described in claim 5, the inward inclination length of the portion of the cut protruding from the side of the magnetic core relative to the external connection is set as G2, and the inclination height of the portion of the cut protruding from the end face of the magnetic core relative to the external connection is set as G3, then 0 < G2 ≤ ​​0.5 mm, 0 < G3 ≤ 4 mm.

7. The multi-channel inductor device as claimed in claim 1, wherein at least one of the connecting segments is connected to the opposing segment at both ends, and the connection point between the connecting segment and the opposing segment is located at a non-center location of the opposing segment.

8. A processing component, characterized in that, The device includes a tape frame and a coil of a multi-channel inductor as described in any one of claims 1 to 7, wherein a plurality of the coils are evenly arranged in the tape frame, the tape frame is provided with an auxiliary beam, the auxiliary beam is integrally connected to the terminal pin of the coil, and the cutout of the terminal pin is located between the terminal pin and the auxiliary beam.

9. A conductor component, characterized in that, Including the coil of the multichannel inductor as described in any one of claims 1 to 7.

10. An electronic device, characterized in that, Including the multi-channel inductor device as described in any one of claims 1 to 7.

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