Environment-friendly inductor capable of preventing short circuit

Abstract

The utility model discloses an environment-friendly inductor capable of preventing short circuit, which comprises an upper-layer nickel core magnetic seat and a lower-layer nickel core magnetic seat, and a winding post used for winding a coil is arranged between the upper-layer nickel core magnetic seat and the lower-layer nickel core magnetic seat. Detachable mounting structures for dismounting and positioning are arranged between the wrapping post and the upper-layer nickel core magnetic seat as well as between the wrapping post and the lower-layer nickel core magnetic seat; and grooves for clamping and limiting are symmetrically formed in the upper end surface of the upper-layer nickel core magnetic seat. According to the environment-friendly inductor capable of preventing the short circuit, the iron terminal is used as an electrode of a power type inductor, meanwhile, the production process is compressed, a butterfly-shaped iron terminal structure which is approximately equal to one third of the area of a traditional electrode is used for replacing two original electrode faces, and the silver plating, nickel plating and tin plating processes of the end face of the magnetic base are removed. And 60% of the production process is compressed, 85% of metal and chemical auxiliary materials are saved, the use is more environment-friendly, disassembly and assembly are convenient, maintenance and replacement are easy, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the field of inductors, in particular to an environmentally friendly short-circuit-preventing inductor. Background Art

[0002] An inductor is a circuit component that generates electromotive force due to changes in the current passing through it, thereby resisting changes in the current. It is usually composed of a skeleton, windings, shielding cover, packaging materials, magnetic core or iron (copper) core, etc. With the continuous development of science and technology, people have higher and higher requirements for the manufacturing process of inductors.

[0003] Existing inductors have certain drawbacks when used. Since the CD open inductor was designed and invented by Japan's Semeda Co., Ltd. in the 1990s and launched on the market, its process is to wind the silver-end, electroplated magnetic components (cores), solder, clean, bake, test the package, inspect, and then package for shipment. After winding, the product needs to be tinned at 400°C. During the tinning, the bottom of the product needs to be immersed in flux, the paint film on the end of the copper wire of the winding is removed, and the groove is filled with tin. After that, the tin beads, tin slag and flux remaining on the product body need to be cleaned with ultrasonic and clean water, otherwise the client will have empty soldering and short circuit abnormalities when passing SMT Reflow, and this welding process generates a lot of waste gas, waste slag and energy consumption. Affected by the tinning process and the use environment, the coating is very easy to fall off after a period of use, and the fallen coating is very easy to separate from the copper wire, resulting in poor contact, which makes the inductor scrapped. For this reason, we propose an environmentally friendly inductor that prevents short circuits. Utility Model Content

[0004] Technical problem solved: In view of the deficiencies in the prior art, the utility model provides an environmentally friendly short-circuit-proof inductor, which adopts iron terminals as electrodes of the power inductor, compresses the production process, and adopts a butterfly-shaped iron terminal structure approximately equal to one-third of the traditional electrode area to replace the original two electrode surfaces, removes the silver-plating, nickel-plating and tin-plating processes on the end faces of the magnetic base, compresses 60% of the production process and saves 85% of metal and chemical auxiliary materials. It is more environmentally friendly, easy to disassemble and assemble, easy to repair and replace, saves costs, and can effectively solve the problems in the background technology.

[0005] Technical solution: To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an environmentally friendly short-circuit-proof inductor, comprising an upper nickel core magnetic base and a lower nickel core magnetic base, a winding post for coil winding is installed between the upper nickel core magnetic base and the lower nickel core magnetic base, a detachable installation structure for disassembly and positioning is arranged between the winding post and the upper nickel core magnetic base and the lower nickel core magnetic base, grooves for locking and limiting are symmetrically provided on the upper end surface of the upper nickel core magnetic base, a pit is provided on the inner end surface of the groove, a butterfly-shaped iron conductor electrode matching the pit is installed on the inner side of the groove, and a coil is welded on the butterfly-shaped iron conductor electrode to form a welding point.

[0006] Preferably, the position in the groove that cooperates with the butterfly-shaped iron conductor electrode is filled with resin structural glue, and the inner side of the butterfly-shaped iron conductor electrode is integrally formed with an L-shaped lock that cooperates with the pit.

[0007] Preferably, the detachable mounting structure includes an upper threaded column, a sealing ring, a lower threaded column and a threaded groove, wherein the upper threaded column is positioned at the upper end of the winding column, the sealing ring and the lower threaded column are positioned at the lower end of the winding column, and the threaded groove is opened in the middle of the lower nickel core magnetic seat and the upper nickel core magnetic seat.

[0008] Preferably, the winding post is detachably installed between the upper threaded post and the upper nickel core magnetic seat, the winding post is detachably installed between the lower threaded post and the lower nickel core magnetic seat, and the winding post and the upper nickel core magnetic seat and the lower nickel core magnetic seat are sealed by a sealing ring.

[0009] Preferably, a wire groove for limiting the position of the coil is formed on the outer wall of the winding column, and an anti-skid protective pad for protecting the coil is bonded and positioned on the surface of the wire groove.

[0010] Preferably, the depth range of the groove is 0.12-0.3mm, the depth range of the pit is 0.6-1.5mm, the butterfly-shaped iron conductor electrode is a single-layer structure, the end of the butterfly-shaped iron conductor electrode does not extend out of the edge of the upper nickel core magnetic seat of the magnetic seat, and the top surface of the butterfly-shaped iron conductor electrode does not extend out of the groove.

[0011] Beneficial effects: Compared with the prior art, the utility model provides an environmentally friendly short-circuit-proof inductor, which has the following beneficial effects: the environmentally friendly short-circuit-proof inductor adopts iron terminals as electrodes of power inductors, compresses the production process, and adopts a butterfly-shaped iron terminal structure that is approximately equal to one-third of the traditional electrode area to replace the original two electrode surfaces, removes the silver plating, nickel plating, and tin plating processes of the magnetic base end surface, and compresses 60% of the production process and saves 85% of metal and chemical auxiliary materials. It is more environmentally friendly to use, easy to disassemble and assemble, easy to repair and replace, and saves costs;

[0012] In order to avoid the situation in which the plating layer and the end face of the magnetic core fall off in the traditional process, the pit groove is fixed with the butterfly-shaped iron (copper) electrode L-shaped structure fastener, and the epoxy resin between the groove and the contact surface of the L-shaped structure fastener is bonded so that the L-shaped structure fastener is firmly fixed on the magnetic core. At the same time, the two ends of the winding are connected to the butterfly-shaped iron electrode L-shaped structure fastener, the iron electrode dissipates heat better, the welding is firmer, and open circuit is avoided. The electrical performance of the iron electrode is completely consistent with that of the copper electrode and the end silver electroplated electrode, which reduces the use of precious metals and reduces costs.

[0013] By installing an L-shaped locking piece in the groove to replace the traditional roller plating and electroplating process of the magnetic core, the generation of waste gas and waste water can be avoided, making the production of the inductor more environmentally friendly, efficient and cost-effective. The entire inductor has a simple structure, is easy to operate, and has a better effect than the traditional method. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is an overall structural schematic diagram of an environmentally friendly short-circuit preventing inductor.

[0015] Figure 2 The utility model is a schematic diagram of a top view of an environmentally friendly short-circuit-preventing inductor.

[0016] Figure 3 The utility model is a schematic structural diagram of a butterfly-shaped iron conductor electrode in an environmentally friendly short-circuit-proof inductor.

[0017] Figure 4 The utility model is a schematic diagram of the overall decomposed structure of an environmentally friendly short-circuit preventing inductor.

[0018] In the figure: 1. Upper nickel core magnetic base; 2. Groove; 3. Pits; 4. Resin structural adhesive; 5. Butterfly-shaped iron guide electrode; 6. Coil; 7. Welding point; 8. L-shaped lock; 9. Lower nickel core magnetic base; 10. Removable mounting structure; 11. Winding column; 12. Upper threaded column; 13. Anti-slip protection pad; 14. Wire groove; 15. Sealing ring; 16. Lower threaded column; 17. Threaded groove. DETAILED DESCRIPTION

[0019] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments, but those skilled in the art will understand that the embodiments described below are part of the embodiments of the utility model, rather than all of the embodiments, and are only used to illustrate the utility model, and should not be considered as limiting the scope of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model. If the specific conditions are not specified in the embodiments, they are carried out according to conventional conditions or conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents or instruments used, they are all conventional products that can be purchased commercially.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figure 1-4As shown, an environmentally friendly short-circuit-proof inductor comprises an upper nickel core magnetic seat 1 and a lower nickel core magnetic seat 9, a winding post 11 for coil winding is installed between the upper nickel core magnetic seat 1 and the lower nickel core magnetic seat 9, a detachable mounting structure 10 for disassembly and positioning is arranged between the winding post 11 and the upper nickel core magnetic seat 1 and the lower nickel core magnetic seat 9, a groove 2 for clamping and limiting is symmetrically opened on the upper end surface of the upper nickel core magnetic seat 1, a pit 3 is opened on the inner end surface of the groove 2, and a A butterfly-shaped iron conductor electrode 5 is welded with a coil 6 to form a welding point 7. An iron terminal is used as the electrode of the power inductor. At the same time, the production process is compressed, and a butterfly-shaped iron terminal structure approximately equal to one-third of the traditional electrode area is used to replace the original two electrode surfaces. The silver plating, nickel plating and tin plating processes on the end surface of the magnetic base are removed, and 60% of the production process is compressed and 85% of metal and chemical auxiliary materials are saved. It is more environmentally friendly, easy to disassemble and assemble, easy to repair and replace, and saves costs.

[0023] Furthermore, the position in the groove 2 that cooperates with the butterfly-shaped iron conductor electrode 5 is filled with a resin structural adhesive 4, and the inner side of the butterfly-shaped iron conductor electrode 5 is integrally formed with an L-shaped lock buckle 8 that cooperates with the pit 3.

[0024] Furthermore, the detachable mounting structure 10 includes an upper threaded column 12, a sealing ring 15, a lower threaded column 16 and a threaded groove 17, wherein the upper threaded column 12 is positioned at the upper end of the winding column 11, the sealing ring 15 and the lower threaded column 16 are positioned at the lower end of the winding column 11, and the threaded groove 17 is opened in the middle of the lower nickel core magnetic base 9 and the upper nickel core magnetic base 1.

[0025] Furthermore, the winding post 11 is detachably installed between the upper threaded post 12 and the upper nickel core magnetic seat 1, and the winding post 11 is detachably installed between the lower threaded post 16 and the lower nickel core magnetic seat 9. The winding post 11 and the upper nickel core magnetic seat 1 and the lower nickel core magnetic seat 9 are sealed by a sealing ring 15.

[0026] Furthermore, a wire groove 14 for limiting the position of the coil is formed on the outer wall of the winding pole 11 , and an anti-skid protection pad 13 for protecting the coil is bonded and positioned on the surface of the wire groove 14 .

[0027] Furthermore, the depth range of the groove 2 is 0.12-0.3mm, the depth range of the pit 3 is 0.6-1.5mm, the butterfly-shaped iron conductive sheet electrode 5 is a single-layer structure, the end of the butterfly-shaped iron conductive sheet electrode 5 does not extend out of the edge of the upper nickel core magnetic seat 1 of the magnetic seat, and the top surface of the butterfly-shaped iron conductive sheet electrode 5 does not extend out of the groove 2.

[0028] Working principle: The utility model includes an upper nickel core magnetic base 1, a groove 2, a pit 3, a resin structural glue 4, a butterfly-shaped iron guide electrode 5, a coil 6, a welding point 7, an L-shaped lock 8, a lower nickel core magnetic base 9, a detachable mounting structure 10, a winding column 11, an upper threaded column 12, an anti-slip protection pad 13, a wire groove 14, a sealing ring 15, a lower threaded column 16, and a threaded groove 17. Iron terminals are used as electrodes of power inductors, and the production process is compressed at the same time. A butterfly-shaped iron terminal structure approximately equal to one-third of the traditional electrode area is used to replace the original two electrode surfaces, and the silver-plating, nickel-plating, and tin-plating processes of the end face of the magnetic base are removed, and 60% of the production process is compressed, and 85% of metal and chemical auxiliary materials are saved. It is more environmentally friendly to use, easy to disassemble and assemble, easy to repair and replace, and saves costs.

[0029] A punching device is used to punch two symmetrical grooves on the end surface of the magnetic core, the punching depth range is 0.12-0.3mm, and a pit card slot is opened at the opposite end of the groove;

[0030] The prefabricated L-shaped structure locking parts are placed in the grooves respectively, and the L-shaped structure locking parts are clamped and fixed with the card slots, and the butterfly-shaped electrode L-shaped structure locking parts are bonded and fixed with the contact surface of the grooves by epoxy resin;

[0031] The winding operation is performed, and the two ends of the winding after winding are welded to the surface of the corresponding L-shaped structure locking part. Instead of the traditional soldering process or the complex process of winding the enameled wire on the terminal for welding, this method makes the end of the winding and the L-shaped structure locking part be combined together by using iron, copper, nickel and tin through electronic pulse high temperature to form a reliable welding point to obtain a finished product.

[0032] Electronic pulse welding uses a temperature that reaches the melting point of the copper wire, and the welding time is controlled at 0.02-0.05 milliseconds for different copper wire diameters.

[0033] It should be noted that, in this article, relational terms such as first and second (number one, number two), etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An environmentally friendly short-circuit-proof inductor, comprising an upper nickel core magnetic base (1) and a lower nickel core magnetic base (9), characterized in that: A winding post (11) for winding a coil is installed between the upper nickel core magnetic seat (1) and the lower nickel core magnetic seat (9), and a detachable mounting structure (10) for disassembly and positioning is provided between the winding post (11) and the upper nickel core magnetic seat (1) and the lower nickel core magnetic seat (9). Grooves (2) for locking and limiting are symmetrically provided on the upper end surface of the upper nickel core magnetic seat (1), and a pit (3) is provided on the inner end surface of the groove (2). A butterfly-shaped iron guide electrode (5) matching the pit (3) is installed on the inner side of the groove (2), and a coil (6) is welded to the butterfly-shaped iron guide electrode (5) to form a welding point (7).

2. The environmentally friendly short-circuit-proof inductor according to claim 1, characterized in that: The position in the groove (2) that cooperates with the butterfly-shaped iron conductor electrode (5) is filled with a resin structural adhesive (4), and the inner side of the butterfly-shaped iron conductor electrode (5) is integrally formed with an L-shaped lock buckle (8) that cooperates with the pit (3).

3. The environmentally friendly short-circuit-proof inductor according to claim 1, characterized in that: The detachable mounting structure (10) comprises an upper threaded column (12), a sealing ring (15), a lower threaded column (16) and a thread groove (17), wherein the upper threaded column (12) is positioned at the upper end of the winding column (11), the sealing ring (15) and the lower threaded column (16) are positioned at the lower end of the winding column (11), and the thread groove (17) is provided in the middle of the lower nickel core magnetic seat (9) and the upper nickel core magnetic seat (1).

4. The environmentally friendly short-circuit-proof inductor according to claim 3, characterized in that: The winding post (11) is detachably mounted between the upper threaded post (12) and the upper nickel core magnetic seat (1), and the winding post (11) is detachably mounted between the lower threaded post (16) and the lower nickel core magnetic seat (9). The winding post (11) and the upper nickel core magnetic seat (1) and the lower nickel core magnetic seat (9) are sealed by a sealing ring (15).

5. The environmentally friendly short-circuit-proof inductor according to claim 1, characterized in that: The outer wall of the winding column (11) is provided with a wire groove (14) for limiting the position of the coil, and an anti-slip protective pad (13) for protecting the coil is bonded and positioned on the surface of the wire groove (14).

6. The environmentally friendly short-circuit-proof inductor according to claim 1, characterized in that: The depth of the groove (2) is in the range of 0.12-0.3 mm, the depth of the pit (3) is in the range of 0.6-1.5 mm, the butterfly-shaped iron conductive sheet electrode (5) is a single-layer structure, the end of the butterfly-shaped iron conductive sheet electrode (5) does not extend beyond the edge of the nickel core magnetic seat (1) on the upper layer of the magnetic seat, and the top surface of the butterfly-shaped iron conductive sheet electrode (5) does not extend beyond the groove (2).

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