Magnetic device and method of manufacturing the same

Abstract

The application relates to the technical field of electronic components, and discloses a magnetic device and a preparation method thereof. The magnetic device comprises a framework, one end of the framework is provided with a first connector extending along a first direction; a magnetic core connected to the framework; a wire package wound on the framework and located between the magnetic cores, two ends of the wire package are provided with a plurality of lead connectors, the lead connectors extend along a second direction, and the first direction and the second direction have an included angle; and a material belt body arranged on the framework along the first direction, one side of the material belt body facing the framework is provided with a second connector, the second connector is connected to the first connector, and the lead connectors are electrically connected to the material belt body. The application improves the compatibility and reliability of the magnetic device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic components, in particular to a magnetic device and a preparation method thereof. BACKGROUND

[0002] With the rapid development of the electronic industry, the industry has increasingly high requirements for customized devices. High-reliability and high-compatibility devices are sought after by the market. For example, in the related art, a transformer needs to be frequently replaced due to different application environments, and it is urgent to optimize the reliability and compatibility of the transformer. In addition, the PIN pin has a high risk of disconnection during winding and immersion soldering, and is also accompanied by cleanliness problems such as flux residue, tin beads, and tin slag. This situation needs to be changed. SUMMARY

[0003] In view of this, the present application provides a magnetic device and a preparation method thereof to improve the reliability and compatibility of the magnetic device.

[0004] To achieve the above purpose, according to a first aspect, the technical scheme adopted is:

[0005] A magnetic device comprises:

[0006] A skeleton, one end of the skeleton is provided with a first connecting body extending in a first direction;

[0007] A magnetic core connected to the skeleton;

[0008] A wire package wound on the skeleton and located between the magnetic cores, both ends of the wire package are provided with a plurality of lead terminals, the lead terminals extend in a second direction, and the first direction and the second direction have an included angle;

[0009] A material belt body, the material belt body is detachably arranged on the skeleton in the first direction, one side of the material belt body facing the skeleton is provided with a second connecting body, the second connecting body is connected to the first connecting body, and the lead terminals are electrically connected to the material belt body.

[0010] The present application further provides that: the first connecting body comprises a first assembly groove arranged on the skeleton in the first direction; and the second connecting body comprises a first connecting block connected to the material belt body and extending in the first direction, the first connecting block being matched in the first assembly groove.

[0011] The application is further provided that the first connector includes a second assembly groove parallel to the first assembly groove and maintaining a set distance from the first assembly groove on the skeleton; and the second connector includes a second connecting block parallel to the first connecting block on the material belt body, and the second connecting block is matched in the second assembly groove.

[0012] The application is further provided that the cross-sectional profile of the first connecting block and the second connecting block is designed in an L shape.

[0013] The application is further provided that a rounded corner part is arranged at the end of the skeleton, a plurality of guide auxiliary grooves are arranged on the rounded corner part, the lead wire connector corresponds to the guide auxiliary grooves one by one, and the end of the skeleton is also symmetrically provided with a supporting block, the height of the supporting block relative to the skeleton is greater than the thickness of the wire package relative to the skeleton, and the supporting block protrudes from the outer surface of the wire package.

[0014] The application is further provided that a plurality of terminal pins are linearly arranged on the material belt body along the first direction, a preset Pin distance is arranged between the plurality of terminal pins, the lead wire connector is electrically connected to the terminal pins and corresponds to the terminal pins one by one.

[0015] The application is further provided that the material belt body has a first connecting surface on one side close to the lead wire connector, the material belt body has a second connecting surface on one side away from the lead wire connector, the terminal pin extends along a third direction and is integrally connected to the material belt body, and the terminal pin covers or partially covers the first connecting surface and the second connecting surface at both ends.

[0016] The application is further provided that on the first connecting surface, the lead wire connector is welded and fixed to one end of the terminal pin, and the welding includes spot welding or laser welding.

[0017] The application is further provided that the material belt body is divided into a plurality of cutting parts, each cutting part includes the second connector and the terminal pin, the number of terminal pins on each cutting part is adjustable, and the preset Pin distance is adjustable.

[0018] According to a second aspect, the technical scheme adopted is:

[0019] A magnetic device preparation method is applied to any of the above embodiments, comprising:

[0020] A skeleton is provided, the skeleton is connected with a magnetic core, and one end of the skeleton is formed with a first connector extending along a first direction;

[0021] Winding the wire on the skeleton to form a wire package wound on the skeleton and located between the magnetic cores, the wire package having a plurality of lead joints at two ends of the wire package, the lead joints extending in a second direction, the first direction and the second direction having an included angle;

[0022] Mounting a tape body on the skeleton, the tape body being detachably arranged on the skeleton in the first direction, wherein a side of the tape body facing the skeleton is provided with a second connecting body, the second connecting body being connected to the first connecting body;

[0023] Slitting the tape body mounted on the skeleton to remove the tape body outside the side edges of the skeleton;

[0024] Spot welding or laser welding the lead joints and the slitted tape body.

[0025] In summary, compared with the prior art, the application discloses a magnetic device and a preparation method thereof, the magnetic device comprising a skeleton, magnetic cores, a wire package, and a tape body, one end of the skeleton being provided with a first connecting body extending in a first direction, the magnetic cores being connected to the skeleton, the wire package being wound on the skeleton and located between the magnetic cores, the wire package having a plurality of lead joints at two ends of the wire package, the lead joints extending in a second direction perpendicular to the first direction, wherein the tape body is detachably arranged on the skeleton in the first direction, a side of the tape body facing the skeleton being provided with a second connecting body, the second connecting body being connected to the first connecting body, and the lead joints being electrically connected to the tape body. That is, through the above arrangement, the skeleton of the magnetic device is connected to the second connecting body of the tape body through the first connecting body, that is, the tape body is detachably arranged on the skeleton in the first direction and the lead joints are electrically connected to the tape body, thereby improving the compatibility and reliability of the magnetic device. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort.

[0027] Figure 1 is a structural schematic diagram of a first magnetic device of the embodiment;

[0028] Figure 2 is a structural schematic diagram of a second magnetic device of the embodiment;

[0029] Figure 3 is a structural schematic diagram of a third magnetic device of the embodiment;

[0030] Figure 4is a process flow diagram of a magnetic device manufacturing method of the present embodiment. DETAILED DESCRIPTION

[0031] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The description herein relates to the drawings, in which the same numbers in different drawings represent the same or similar elements throughout. The following detailed description is not representative of all embodiments consistent with the present application. Rather, it is merely exemplary of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0032] It should be noted that, as used in this document, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element. The terms "an embodiment", "one embodiment", or "some embodiments" do not require that all embodiments include the discussed feature, element, or step. Terms of degree such as "substantially", "about", and "approximately" mean to allow for some variability while within the desired working range of the term. Variability of a value in a desired working range is meant to include variations of the value within the desired working range.

[0033] It should further be understood that the terms "comprise", "comprising", "include", "including", "contain", "containing", "have", "having", and the like mean that the elements listed are present in the process, method, article, or apparatus, but do not preclude the presence or addition of one or more other elements, steps, operations, elements, components, items, categories, and / or groups thereof. The term "or" as used in the present application is to be interpreted as inclusive or, meaning one or any combination of any of the items in the list of items. For example, "A, B, or C" or "A, B, and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B, and C." An exception to this definition will occur only when a combination of elements, functions, steps or acts are in some way inherently mutually exclusive.

[0034] It should be understood that, although the terms first, second, third, etc. can be employed in this text to describe various information, these information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this text, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information. Depending on the context, as used herein, the singular forms "a", "an" and "the" are intended to include plural forms as well, unless the context clearly indicates otherwise.

[0035] It should be understood that the terms "top", "bottom", "upper", "lower", "vertical", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0036] For the convenience of description, in the following embodiments, the orthogonal space formed by the horizontal plane and the vertical direction is taken as an example for description, and this precondition should not be understood as a limitation on the present application.

[0037] Please refer to Figure 1 , Figure 2 and Figure 3 The magnetic device of the present application comprises a skeleton 1, a magnetic core 2, a wire package 3 and a material belt body 4. Specifically, the magnetic core 2 is connected to the skeleton 1, the wire package 3 is wound on the skeleton 1 and located between the magnetic cores 2, and the material belt body 4 is detachably arranged on the skeleton 1 along a first direction. Wherein, the wire package 3 is provided with a plurality of lead connectors 30 at both ends, the lead connectors 30 extend along a second direction, the first direction and the second direction have an included angle, one end of the skeleton 1 is provided with a first connecting body 10 extending along the first direction, one side of the material belt body 4 facing the skeleton 1 is provided with a second connecting body 40, the second connecting body 40 connects the first connecting body 10, and the lead connector 30 is electrically connected with the material belt body 4.

[0038] It should be noted that the first direction and the second direction of the present embodiment have an included angle, that is, the first direction and the second direction are not parallel to each other in the same plane. The present embodiment can also be provided with a third direction, the third direction can be perpendicular to the first direction and the second direction, and the included angle of the first direction and the second direction can be 90° or other preset angle. When the first direction, the second direction and the third direction are perpendicular to each other, please refer to Figure 1The X-Y-Z space coordinates are constructed, and the X-axis direction can be regarded as the first direction, the Y-axis direction can be regarded as the second direction, and the Z-axis direction can be regarded as the third direction. The first direction can also be regarded as the left-right extension direction of the skeleton 1, the second direction can also be regarded as the front-rear extension direction of the skeleton 1, and the third direction can also be regarded as the up-down extension direction of the skeleton 1. Of course, the present embodiment is not limited to this, and X-Y-Z can also be other arbitrary directions perpendicular to each other in space according to actual needs, which will not be described here.

[0039] In the specific implementation process, the skeleton 1 is connected to the second connecting body 40 on the side of the skeleton 1 facing the tape body 4 through the first connecting body 10 extending in the first direction at the end of the skeleton 1, thereby ensuring that the tape body 4 is detachably arranged on the skeleton 1 in the first direction, and the lead connector 30 extends in the second direction and is electrically connected with the tape body 4, so that the tape body 4 can be flexibly matched with different types of skeletons 1 and magnetic cores 2, that is, when the product of the magnetic device is upgraded or replaced, higher compatibility can be maintained, and the time and cost of developing a new device can be reduced. In addition, the detachable design of the tape body 4 makes the magnetic device more easy to maintain and replace during use, especially in large-scale production or complex application scenarios, which can significantly improve the maintenance efficiency and operability of the product. At the same time, the detachable arrangement of the tape body 4 on the skeleton 1 in the first direction makes the structure of the magnetic device more compact, which helps to reduce the volume and meet the miniaturization design requirement.

[0040] In one embodiment, the skeleton 1 is connected to the second connecting body 40 on the side of the skeleton 1 facing the tape body 4 through the first connecting body 10 extending in the first direction at the end of the skeleton 1, thereby ensuring that the tape body 4 is detachably arranged on the skeleton 1 in the first direction. Specifically, the first connecting body 10 includes a first assembly groove 11 arranged on the skeleton 1 in the first direction, and the second connecting body 40 includes a first connecting block 41 connected to the tape body 4 and extending in the first direction. The first connecting block 41 is matched in the first assembly groove 11. Thus, by designing the first connecting body 10 and the second connecting body 40 as the structure of the assembly groove and the connecting block, they can be closely matched, further enhancing the structural stability of the magnetic device and the convenience of assembly. That is, through the cooperation of the first connecting block 41 and the first assembly groove 11, the stable installation of the tape body 4 on the skeleton 1 is ensured, the risk of loosening or displacement is reduced, the mechanical strength and durability of the entire magnetic device are improved, and the cooperation design is more efficient. Through the sliding or clamping mode, the first connecting block 41 can be easily installed into the first assembly groove 11, without complex assembly tools and steps, and the detachability of the tape body 4 is maintained, which is convenient for subsequent maintenance, replacement or upgrading, and is conducive to prolonging the life cycle of the product.

[0041] In one embodiment, the first connecting body 10 further comprises a second assembly groove 12 which is parallel to the first assembly groove 11 on the skeleton 1 and maintains a certain distance from the first assembly groove 11, that is, the second assembly groove 12 also penetrates the skeleton 1 along the first direction, and the second connecting body 40 further comprises a second connecting block 42 which is parallel to the first connecting block 41 on the ribbon body 4, and the second connecting block 42 is matched in the second assembly groove 12, thereby increasing the second assembly groove 12 and the second connecting block 42, and designing the first connecting body 10 and the second connecting body 40 as a double assembly groove and connecting block structure, that is, by providing two parallel assembly grooves and connecting blocks, providing double fixing points, improving the connection strength between the ribbon body 4 and the skeleton 1, and avoiding loosening or displacement during use.

[0042] Further, the cross-sectional profile of the first connecting block 41 and the second connecting block 42 is designed as an L shape, thereby increasing the contact area of the connecting block, enabling it to be more stably embedded in the assembly groove, enhancing the shear resistance and torque resistance, and the L-shaped cross section can better define the position of the connecting block in the assembly groove, ensure the positioning accuracy during assembly, and improve the precision of the overall structure.

[0043] On the other hand, based on the double assembly groove and connecting block structure design of the first connecting body 10 and the second connecting body 40, the entire assembly structure of the magnetic device can have good anti-shock performance, can effectively absorb and resist external impact and vibration, is suitable for use in various complex application environments, and the L-shaped design of the cross-sectional profile of the first connecting block 41 and the second connecting block 42 helps to uniformly distribute the stress applied at the connecting part, avoids structural fatigue or fracture caused by stress concentration, and further improves the durability of the device.

[0044] Then the magnetic device of the embodiment, the skeleton 1 connects the second connecting body 40 on the side of the ribbon body 4 facing the skeleton 1 through the first connecting body 10 of the end extending along the first direction, thereby ensuring that the ribbon body 4 is detachably arranged on the skeleton 1 along the first direction, and the lead connector 30 extends along the second direction and is electrically connected with the ribbon body 4, so that the ribbon body 4 can be flexibly matched with different types of skeleton 1 and magnetic core 2, wherein the first connecting body 10 and the second connecting body 40 are designed as an assembly groove and connecting block structure, the first connecting body 10 comprises a first assembly groove 11 and / or a second assembly groove 12, and the second connecting body 40 comprises a first connecting block 41 and / or a second connecting block 42, thereby ensuring that the ribbon body 4 can be flexibly matched with different types of skeleton 1 and magnetic core 2 through the assembly groove and connecting block cooperation, or the double assembly groove and connecting block structure, improving the connection strength between the ribbon body 4 and the skeleton 1, improving the precision of the overall structure, and improving the compatibility and reliability of the magnetic device.

[0045] In one embodiment, the end top corner of the skeleton 1 is provided with a fillet 13, and a plurality of guide auxiliary grooves 14 are formed on the fillet 13, and the lead wire connector 30 corresponds to the guide auxiliary groove 14 one by one. The curved surface of the fillet 13 avoids scratching the lead wire connector 30 at the end top corner of the skeleton 1, and the guide auxiliary groove 14 provides an accurate guide path for the lead wire connector 30, ensuring that the lead wire connector 30 can be correctly and stably connected in place, avoiding misalignment or poor winding during assembly. The guide auxiliary groove 14 makes the installation process of the lead wire connector 30 more convenient and efficient, improves production efficiency, and at the same time, the design of the guide auxiliary groove 14 corresponding to the lead wire connector 30 ensures that each lead wire connector 30 has a clear connection position, thereby improving the reliability of electrical connection and reducing the risk of electrical failure due to poor connection.

[0046] Therefore, the skeleton 1 of the magnetic device of the present application is connected to the second connecting body 40 of the tape body 4 facing the skeleton 1 through the first connecting body 10 of the end extending in the first direction, thereby ensuring that the tape body 4 is detachably arranged on the skeleton 1 in the first direction, and the lead wire connector 30 extends in the second direction and is electrically connected to the tape body 4 through the guide auxiliary groove 14 on the fillet 13. In addition, the first connecting body 10 includes a first assembly groove 11 and / or a second assembly groove 12, and the second connecting body 40 includes a first connecting block 41 and / or a second connecting block 42, thereby improving the compatibility and reliability of the magnetic device.

[0047] In one embodiment, the end of the skeleton 1 is also symmetrically provided with a support block 15, and the height of the support block 15 relative to the skeleton 1 is greater than the thickness of the wire package 3 relative to the skeleton 1, that is, the support block 15 protrudes from the outer surface of the wire package 3. Specifically, the height of the support block 15 relative to the skeleton 1 is adjustable, thereby providing physical protection for the magnetic device and avoiding damage to the wire package 3 due to external pressure or impact during transportation, installation or operation, thereby improving the reliability of the device.

[0048] In the specific implementation process, a plurality of terminal pins 5 are linearly arranged on the tape body 4 in the first direction, and a predetermined Pin distance H is provided between the plurality of terminal pins 5. The lead wire connector 30 is electrically connected to and corresponds to the terminal pin 5 one by one, that is, the predetermined Pin distance H ensures the standard spacing between the terminal pins 5, facilitating connection with other electronic components and adapting to different application requirements.

[0049] Further, the tape body 4 has a first connecting surface 6 on the side close to the lead connector 30, and has a second connecting surface 7 on the side away from the lead connector 30, the terminal leg 5 extends in a third direction and is integrally connected to the tape body 4, and the two ends of the terminal leg 5 cover or partially cover the first connecting surface 6 and the second connecting surface 7, so that the terminal leg 5 can be integrally and stably connected to the tape body 4, and it is also convenient for the magnetic device to be connected to an external device through the terminal leg 5 of the tape body 4, thereby enhancing the contact stability with the external device and reducing the risk of poor contact. At the same time, the clear layout of the terminal leg 5 makes the connection more intuitive, facilitating quick identification and installation, and improving the accuracy and efficiency of operation.

[0050] Among them, the first connecting surface 6 and the second connecting surface 7 are parallel to the horizontal plane.

[0051] Among them, on the first connecting surface 6, the lead connector 30 is welded and fixed with one end of the terminal leg 5, and the welding includes spot welding or laser welding. Specifically, the lead connector 30 and one end of the terminal leg 5 are fixed by spot welding or laser welding on the first connecting surface 6, which further enhances the reliability and mechanical strength of the electrical connection of the magnetic device. It should be noted that spot welding or laser welding can provide high mechanical strength to ensure that the connection between the lead connector 30 and the terminal leg 5 is firm and not easy to come off. It can also be accurately controlled to ensure the quality consistency of each connection point, reduce the occurrence of defective products during production, and compared with the related art of winding and immersion soldering, spot welding or laser welding of the lead connector 30 and the terminal leg 5 on the first connecting surface 6 can avoid the problem of the influence of the soldering agent on the cleanliness of the surface residue after soldering, that is, tin beads and tin slag may be generated in the winding and immersion soldering, affecting the quality of the solder joint and the overall cleanliness, reducing the need for subsequent cleaning processes, thereby reducing cleaning and production costs, making the operation more convenient, and being suitable for large-scale automated production.

[0052] Then the magnetic device of the present application, the skeleton 1 is connected to the second connecting body 40 on the side of the tape body 4 facing the skeleton 1 through the first connecting body 10 extending in the first direction at the end thereof, thereby ensuring that the tape body 4 is detachably arranged on the skeleton 1 in the first direction, and the lead connector 30 extends in the second direction and is electrically connected to the tape body 4 through the guide auxiliary groove 14 on the round corner part 13, and the first connecting body 10 includes the first assembly groove 11 and / or the second assembly groove 12, and the second connecting body 40 includes the first connecting block 41 and / or the second connecting block 42, and at the same time, the tape body 4 has a first connecting surface 6 on the side close to the lead connector 30, and the terminal leg 5 linearly arranged on the tape body 4 in the first direction is spot welded or laser welded with the lead connector 30 on the first connecting surface 6, thereby improving the compatibility and reliability of the magnetic device.

[0053] In an embodiment, the terminal pin 5 can adopt a conductor material such as red copper, phosphor bronze, or copper-clad steel, wherein the red copper has extremely high conductivity and corrosion resistance, is easy to weld, can effectively reduce resistance, and improve current transmission efficiency; the phosphor bronze has high strength and elasticity while maintaining good conductivity, can maintain structural stability in a mechanical stress environment; the copper-clad steel combines the strength of steel and the conductivity of copper, providing good mechanical strength while ensuring good conductivity, that is, the terminal pin 5 can select any of the above materials according to actual environmental requirements.

[0054] In an embodiment, the forming material of the skeleton 1 and the material belt body 4 includes, but is not limited to, bakelite, PPS (polyphenylene sulfide), PA (polyamide, nylon), LCP (liquid crystal polymer), and DAP (diallyl imide), etc., and can also be a combination of any of the above materials, so as to optimize product performance for specific application environments and improve the overall strength of the skeleton 1 and the material belt body 4.

[0055] It should be noted that the material belt body 4 is divided into a plurality of cutting parts 8, each cutting part 8 includes a second connecting body 40 and a terminal pin 5, the number of terminal pins 5 on each cutting part 8 is adjustable, and the preset Pin distance H is adjustable. Specifically, based on the design of the cutting part 8, the number of terminal pins 5 on each cutting part 8 can be adjusted according to the requirements of different applications, providing greater design and production flexibility, and the preset Pin distance H is adjustable to adapt to different connection requirements and ensure the compatibility of circuit design. Then, according to the configuration of the skeleton 1, the magnetic core 2, and the wire package 3, the corresponding material belt body 4 is configured, and the cutting part 8 outside the side edge of the skeleton 1 can be removed after the material belt body 4 is installed. Thus, the material belt body 4 can be flexibly matched with different types of skeletons 1 and magnetic cores 2, improving the compatibility and reliability of the magnetic device.

[0056] In an embodiment, the specific number of lead connectors 30 is 4, and the specific number of terminal pins 5 in one cutting part 8 can be correspondingly configured as 4.

[0057] The embodiment also discloses a magnetic device preparation method, which refers to Figure 4 , Figure 4 is a process flow chart of the magnetic device preparation method of the embodiment, and in combination with Figures 1 to 3 , the magnetic device preparation method comprises the following steps.

[0058] S101, providing a skeleton 1, the skeleton 1 being connected with a magnetic core 2, and one end of the skeleton 1 being formed with a first connecting body 10 extending along a first direction.

[0059] In this step, the first connecting body 10 includes a first assembly groove 11 and / or a second assembly groove 12.

[0060] S102, winding on the skeleton 1, forming a winding 3 wound on the skeleton 1 and located between the magnetic cores 2, the winding 3 has a plurality of lead joints 30 at both ends, the lead joints 30 extend along the second direction, the first direction and the second direction have an included angle.

[0061] In this step, the end of the skeleton 1 is also symmetrically provided with a support block 15, the height of the support block 15 relative to the skeleton 1 is greater than the thickness of the winding 3 relative to the skeleton 1, that is, the support block 15 protrudes from the outer surface of the winding 3.

[0062] S103, installing the ribbon body 4 on the skeleton 1, the ribbon body 4 is detachably arranged on the skeleton 1 along the first direction, wherein the side of the ribbon body 4 facing the skeleton 1 is provided with a second connecting body 40, and the second connecting body 40 is connected to the first connecting body 10.

[0063] In this step, the second connecting body 40 includes a first connecting block 41 and / or a second connecting block 42, the first connecting block 41 is matched in the first assembly groove 11, and the second connecting block 42 is matched in the second assembly groove 12, and the cross-sectional profile of the first connecting block 41 and the second connecting block 42 can be designed as L-shaped.

[0064] Further, a plurality of terminal pins 5 are linearly arranged on the ribbon body 4 along the first direction, a preset Pin distance H is provided between the plurality of terminal pins 5, the lead joints 30 are electrically connected to the terminal pins 5 and correspond one by one to the terminal pins 5.

[0065] Wherein, the side of the ribbon body 4 close to the lead joints 30 has a first connecting surface 6, the side of the ribbon body 4 away from the lead joints 30 has a second connecting surface 7, the terminal pins 5 extend along the third direction and are integrally connected to the ribbon body 4, and the two ends of the terminal pins 5 cover or partially cover the first connecting surface 6 and the second connecting surface 7.

[0066] S104, slitting the ribbon body 4 installed on the skeleton 1 to remove the part of the ribbon body 4 outside the side edge of the skeleton 1.

[0067] In this step, the ribbon body 4 is also divided into a plurality of slitting parts 8, each slitting part 8 includes a second connecting body 40 and a terminal pin 5, the number of terminal pins 5 on each slitting part 8 is adjustable, and the preset Pin distance H is adjustable, based on the design of the slitting part 8, adjusting the number of terminal pins 5 on each slitting part 8 and the value of the preset Pin distance H, then according to the configuration of the skeleton 1, the magnetic core 2 and the winding 3, the corresponding ribbon body 4 is configured, and after installing the ribbon body 4, the slitting part 8 outside the side edge of the skeleton 1 can be removed, improving the compatibility and reliability of the magnetic device.

[0068] S105, spot welding or laser welding the lead joints 30 and the slitted ribbon body 4.

[0069] In this step, the lead joint 30 can be spot welded or laser welded with one end of the terminal pin 5 on the first connecting surface 6.

[0070] It should be noted that the winding step on the skeleton 1 and the step of installing the tape body 4 on the skeleton 1 in the magnetic device preparation method of the present application are not limited in sequence, that is, the tape body 4 can be installed on the skeleton 1 after winding, or the winding can be performed after the tape body 4 is installed on the skeleton 1.

[0071] For other working principles and processes of the magnetic device preparation method of the present application, refer to the foregoing description of the magnetic device in the embodiments of the present application, which will not be repeated here.

[0072] The magnetic device and the preparation method thereof provided by the present application are described in detail above, and the principles and implementation manners of the present application are described by using specific examples. It should be noted that the description of each embodiment in the present application is focused on different aspects, and the parts not described or recorded in a certain embodiment can be referred to the related description of other embodiments.

[0073] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and each technical feature of the technical solution of the present application can be combined arbitrarily. In order to make the description simple, each technical feature in the above embodiments is not described in all possible combinations, and any equivalent structure or equivalent flow conversion obtained by using the content of the present application and the drawings, or directly or indirectly applied in other related technical fields, as long as the combination of these technical features does not exist contradiction, are also included in the patent protection scope of the present application.

Claims

1. A magnetic device, characterized by, include: A skeleton, one end of which is provided with a first connector extending in a first direction; A magnetic core, which is connected to the frame; A coil, the coil being wound on the skeleton and located between the magnetic cores, the coil having a plurality of lead connectors at both ends, the lead connectors extending along a second direction, the first direction and the second direction having an included angle; The material strip body is detachably disposed on the skeleton along the first direction. A second connector is provided on the side of the material strip body facing the skeleton. The second connector is connected to the first connector. The lead wire connector is electrically connected to the material strip body. The material strip body has a plurality of terminal pins arranged linearly along the first direction. The material strip body has a first connecting surface on the side near the lead connector and a second connecting surface on the side away from the lead connector. The terminal pins extend along a third direction and are integrally connected to the material strip body. The two ends of the terminal pins cover or partially cover the first connecting surface and the second connecting surface. Wherein, the first direction is the left-right extension direction of the skeleton, the second direction is the front-back extension direction of the skeleton, and the third direction is the up-down extension direction of the skeleton.

2. The magnetic device of claim 1, wherein, The first connector includes a first assembly groove, which is arranged on the skeleton along the first direction; the second connector includes a first connecting block, which is connected to the material strip body and extends along the first direction, and the first connecting block is matched in the first assembly groove.

3. The magnetic device of claim 2, wherein, The first connecting body includes a second assembly groove, which is parallel to the first assembly groove on the skeleton and maintains a set distance from the first assembly groove; the second connecting body includes a second connecting block, which is parallel to the first connecting block on the material strip body and is matched in the second assembly groove.

4. The magnetic device of claim 3, wherein, The cross-sectional profiles of the first connecting block and the second connecting block are designed in an L-shape.

5. The magnetic device of claim 1, wherein, The frame has a rounded corner at the top corner of its end, and a plurality of guide auxiliary grooves are provided on the rounded corner. The lead wire connector corresponds to the guide auxiliary grooves one by one. The frame also has symmetrical support blocks at its end. The height of the support block relative to the frame is greater than the thickness of the coil relative to the frame. The support block protrudes from the outer surface of the coil.

6. The magnetic device as described in claim 1, characterized in that, A preset pin spacing is provided between several of the terminal pins, and the lead connector is electrically connected to the terminal pins and corresponds to each terminal pin.

7. The magnetic device as described in claim 1, characterized in that, On the first connection surface, the lead connector is welded to one end of the terminal pin, and the welding includes spot welding or laser welding.

8. The magnetic device as described in claim 6, characterized in that, The main body of the strip is divided into several slitting sections. Each slitting section includes the second connector and the terminal pins. The number of terminal pins on each slitting section is adjustable, and the preset pin distance is adjustable.

9. A method for fabricating a magnetic device, applied to the magnetic device according to any one of claims 1 to 8, characterized in that, include: A frame is provided, on which a magnetic core is connected, and a first connector extending along a first direction is formed at one end of the frame; A coil is wound around the skeleton to form a coil wound on the skeleton and located between the magnetic cores. The two ends of the coil have a plurality of lead connectors, which extend along a second direction. The first direction and the second direction have an included angle. A material strip body is installed on the frame, and the material strip body is detachably disposed on the frame along the first direction. A second connector is provided on the side of the material strip body facing the frame, and the second connector is connected to the first connector. The strip body mounted on the frame is slit to remove the portion of the strip body outside the sides of the frame; The lead connector and the slit strip body are connected by spot welding or laser welding.

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