Patch Inductor Winding Frame Structure and Method for Manufacturing Patch Inductor

Abstract

The present invention belongs to the technical field of electronic components, and particularly relates to a patch inductor winding frame structure and a method for manufacturing a patch inductor, including a first tape and a second tape arranged oppositely, and an inductor magnetic core component arranged between the first tape and the second tape; at least one set of connection positions are arranged between the first tape and the second tape; a first rib and a second rib are arranged on the inner side of the first tape, and a third rib is arranged on the inner side of the second tape, and the first rib, the second rib and the third rib form the connection positions; the plastic base of the inductor magnetic core component is connected to the first rib, the second rib and the third rib; an incoming wire turning part is arranged on the first rib, a first wire fixing part is arranged on the second rib, and a second wire fixing part is arranged on the third rib. Instead of the existing soldering fixation, it not only reduces the processes, but also facilitates subsequent processing and reduces costs.

Description

Technical Field

[0001] The present invention belongs to the technical field of electronic components, and particularly relates to a structure of a winding frame for a chip inductor and a manufacturing method of a chip inductor. Background Art

[0002] An inductor is an essential electronic component in electronic products; with the continuous progress of electronic technology, electronic components have become increasingly refined, and chip inductors have gradually replaced traditional inductors, so the demand for chip inductors is extremely large. A wound chip inductor includes a plastic base, a magnetic core, a connecting piece, and a housing. The magnetic core is arranged on the base, a wire is wound around the magnetic core, and both ends of the wire are fixed on the connecting piece. The magnetic core is inserted into the housing, and the connecting piece is bent and attached to the surface of the housing. Currently, when winding the magnetic core, the two ends of the wire are welded to the connecting piece to fix the wire ends and connect the inductor to electricity; however, through soldering connection, due to the small size of the chip inductor, the welding difficulty is high, increasing the cost of the chip inductor. Summary of the Invention

[0003] The purpose of the present invention is to provide a structure of a winding frame for a chip inductor and a manufacturing method of a chip inductor, aiming to solve the problem that it is difficult to fix the wire ends on the connection after winding the current chip inductor.

[0004] To achieve the above purpose, a structure of a winding frame for a chip inductor provided by an embodiment of the present invention includes a first tape and a second tape arranged opposite to each other, and an inductor magnetic core component arranged between the first tape and the second tape; at least one set of connection positions is arranged between the first tape and the second tape; a first rib and a second rib are arranged on the inner side of the first tape, a third rib is arranged on the inner side of the second tape, and the first rib, the second rib, and the third rib form the connection position; the plastic base of the inductor magnetic core component is connected to the first rib, the second rib, and the third rib; a wire inlet turning part is arranged on the first rib, a first wire fixing part is arranged on the second rib, and a second wire fixing part is arranged on the third rib.

[0005] Further, a connecting rib is further arranged on the inner side of the second tape, and the connecting rib is connected to the inductor magnetic core component; the first rib and the connecting rib are arranged diagonally, and the second rib and the third rib are arranged diagonally.

[0006] Further, the wire winding turning part is arranged on the inner side of the first rib and extends upward, and the free end of the wire winding turning part is bent outward to form a hook part; the first wire fixing part and the second wire fixing part are arranged on the same side, the upper end of the first wire fixing part is bent above the second rib, and the upper end of the second wire fixing part is bent above the third rib.

[0007] Furthermore, positioning holes are provided on both the first tape and the second tape.

[0008] Furthermore, multiple sets of connection positions are provided between the first tape and the second tape, and each connection position is connected with an inductor core component.

[0009] A method for manufacturing a chip inductor includes the following steps:

[0010] Step 1, positioning the chip inductor winding frame structure on a winding fixture;

[0011] Step 2, after the wire passes through the incoming wire turning part and the first wire fixing part in sequence and turns, it winds around the core of the inductor core component. After winding, the wire is output through the second wire fixing part;

[0012] Step 3, bending the first wire fixing part and the second wire fixing part, and pressing both ends of the wire on the second rib and the third rib respectively;

[0013] Step 4, cutting off the ribs connecting the inductor core component, cutting the second rib along the side of the first wire fixing part away from the inductor core component; cutting the third rib along the side of the second wire fixing part away from the inductor core component;

[0014] Step 5, installing the inductor core component obtained in Step 4 into the shell of the chip inductor, bending the second rib and the third rib upward so that the second rib and the third rib are attached to the outside of the shell.

[0015] Furthermore, in Step 2, after the wire is output through the second wire fixing part, it passes through the incoming wire turning part and winds around the incoming wire turning part of the next chip inductor winding frame structure.

[0016] Furthermore, laser cutting is used to cut each rib plate connecting the inductor core component.

[0017] Furthermore, in Step 3, after the first wire fixing part is bent, it is resistance welded to the second rib; after the second wire fixing part is bent, it is resistance welded to the third rib.

[0018] One or more of the above technical solutions in the chip inductor winding frame structure provided by the embodiments of the present invention have at least the following technical effects:

[0019] When winding a wire around the core of an inductive core component, after the wire enters the wire inlet turning part, it can be wound around the first wire fixing part, then around the core of the inductive core component, and then fixed to the wire through the second wire fixing part; therefore, when winding the inductive core component, the two ends of the wire are fixed by the first wire fixing part and the second wire fixing part, replacing the existing soldering fixation, which not only reduces the process, but also facilitates subsequent processing and reduces costs. Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a structural diagram of the patch inductor winding frame structure provided by the embodiment of the present invention.

[0022] Figure 2 It is a structural diagram of the patch inductor winding frame structure provided by the embodiment of the present invention with multiple connection positions.

[0023] Figure 3 It is a schematic structural diagram of the winding of the patch inductor winding frame structure provided by the embodiment of the present invention.

[0024] Figure 4 It is a schematic winding diagram of the patch inductor winding frame structure provided by the embodiment of the present invention with multiple connection positions Detailed Description of the Embodiments

[0025] The following will describe in detail the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the embodiments of the present invention, and should not be construed as a limitation of the present invention.

[0026] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of 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 should not be construed as a limitation of the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0028] In the embodiments of the present invention, unless otherwise clearly defined and limited, terms such as "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0029] In one embodiment of the present invention, referring to Figures 1 to 4 , a patch inductor winding frame structure includes a first tape 100 and a second tape 200 which are oppositely arranged, and an inductor core component 300 disposed between the first tape 100 and the second tape 200. At least one set of connection positions is provided between the first tape 100 and the second tape 200 for connecting the inductor core component 300. A first rib 101 and a second rib 102 are provided on the inner side of the first tape 100, and a third rib 201 is provided on the inner side of the second tape 200; the first rib 101, the second rib 102 and the third rib 201 form the connection positions. The plastic base of the inductor core component 300 is connected to the first rib 101, the second rib 102 and the third rib 201. An incoming wire turning portion 103 is provided on the first rib 101, a first wire fixing portion 104 is provided on the second rib 102, and a second wire fixing portion 202 is provided on the third rib 201. When winding a wire around the core of the inductor core component 300, after the wire passes through the incoming wire turning portion 103, it is wound around the first wire fixing portion 104, then wound around the core of the inductor core component 300, and then fixed by the second wire fixing portion 202; therefore, when winding the inductor core component 300, the two ends of the wire are fixed by the first wire fixing portion 104 and the second wire fixing portion 202, which is convenient for subsequent processing.

[0030] Furthermore, referring to Figures 1 to 4, a connecting rib 203 is further provided on the inner side of the second strip 200, and the connecting rib 203 connects the inductive magnetic core component 300. The first rib 101 and the connecting rib 203 are arranged diagonally, and the second rib 102 and the third rib 201 are arranged diagonally. In this embodiment, the inductive magnetic core component 300 is connected by the connecting rib 203, so the stability of the connection between the inductive magnetic core component 300 and the second strip 200 is increased, the stability during winding of the inductive magnetic core component 300 is ensured, and the problem of deformation of each rib during the winding process is avoided, thereby improving the winding quality.

[0031] Further, referring to Figures 1 to 4 , the wire winding turning portion 103 is provided on the inner side of the first rib 101 and extends upward, and the free end of the wire winding turning portion 103 is bent outward to form a hook portion 103a. During wire winding, the hook portion 103a limits the wire to prevent the wire from falling off the wire winding turning portion 103.

[0032] Referring to Figures 1 to 4 , the first wire fixing portion 104 and the second wire fixing portion 202 are arranged on the same side. The upper end of the first wire fixing portion 104 is bent above the second rib 102 to form a first wire pressing portion 104a, and the upper end of the second wire fixing portion 202 is bent above the third rib 201 to form a second wire pressing portion 104a. When the wire is wound around the inductive magnetic core component 300, the two ends of the wire are respectively fixed on the first wire fixing portion 104 and the second wire fixing portion 202. Through the first wire pressing portion 104a and the second wire pressing portion 104a, the two ends of the wire are respectively pressed and fixed on the second rib 102 and the third rib 201. The stability of the fixation of the two ends of the wire is increased.

[0033] Further, referring to Figures 1 to 4 , positioning holes 110, 210 are provided on both the first strip 100 and the second strip 200. During wire winding, the wire-wound inductor winding frame structure can be positioned on the wire-winding fixture, improving the positioning accuracy and wire-winding accuracy.

[0034] Further, a plurality of connecting positions are provided between the first strip 100 and the second strip, and each connecting position is connected with an inductive magnetic core component 300. Therefore, it is possible to realize the winding and subsequent processing of multiple inductive magnetic core components 300 on the outside at one time, improving the production efficiency.

[0035] A method for manufacturing a chip inductor includes the following steps. Please refer to Figures 1 to 4 :

[0036] Step 1, positioning the wire-wound inductor winding frame structure on the wire-winding fixture;

[0037] Step 2: After the wire passes through the incoming wire turning part 103 and the first wire fixing part 104 in sequence and turns, it is wound around the magnetic core of the inductor magnetic core component 300. After winding, the wire is output through the second wire fixing part 202 to realize winding of the magnetic core and fixing of both ends of the wire.

[0038] Step 3: Bend the first wire fixing part 103 and the second wire fixing part 202 so that the first wire fixing part 103 and the second wire fixing part 202 respectively press both ends of the wire on the second rib 102 and the third rib 201.

[0039] Step 4: Cut off the ribs connecting the inductor magnetic core component 300. The second rib 102 is cut along the side of the first wire fixing part 104 away from the inductor magnetic core component 300. The third rib 201 is cut along the side of the second wire fixing part 202 away from the inductor magnetic core component 300. After cutting, the wire ends are fixed at the ends of the second rib 102 and the third rib 201.

[0040] Step 5: Install the inductor magnetic core component obtained in Step 4 into the shell of the chip inductor, and bend the second rib 102 and the third rib 201 upward so that the second rib 102 and the third rib 201 are attached to the outside of the shell.

[0041] Furthermore, in Step 2, after the wire is output through the second wire fixing part 202, it passes through the incoming wire turning part 103 and winds around the incoming wire turning part 103 of the next chip inductor winding frame structure. In this embodiment, by winding around the incoming wire turning part 103 of the next chip inductor winding frame structure through the incoming wire turning part 103, the tightness of the wire can be increased, and the problem of wire dropping during the winding process can be avoided.

[0042] Furthermore, laser cutting is used to cut each rib plate connecting the inductor magnetic core component 300.

[0043] Furthermore, in Step 3, after the first wire fixing part 104 is bent, it is resistance welded to the second rib 102; after the second wire fixing part 202 is bent, it is resistance welded to the third rib 201. Therefore, the connection firmness between both ends of the wire and the second rib 102 and the third rib 201 is increased, and the conductivity is also increased.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for manufacturing a chip inductor, wherein, The chip inductor includes a first tape and a second tape arranged oppositely, and an inductor core component disposed between the first tape and the second tape; at least one set of connection positions are arranged between the first tape and the second tape; a first rib and a second rib are arranged on the inner side of the first tape, and a third rib is arranged on the inner side of the second tape, and the first rib, the second rib and the third rib form the connection position; the plastic base of the inductor core component is connected to the first rib, the second rib and the third rib; an incoming wire turning portion is arranged on the first rib, a first wire fixing portion is arranged on the second rib, and a second wire fixing portion is arranged on the third rib; it is characterized in that: the manufacturing method of the chip inductor includes the following steps: Step 1, positioning the winding frame structure of the chip inductor on a winding fixture; Step 2, after the wire passes through the incoming wire turning portion and turns through the first wire fixing portion in sequence, it winds around the core of the inductor core component. After winding, the wire is output through the second wire fixing portion; Step 3, bending the first wire fixing portion and the second wire fixing portion, and pressing the two ends of the wire against the second rib and the third rib respectively; Step 4, cutting off the ribs connecting the inductor core component, cutting off the second rib along the side away from the inductor core component of the first wire fixing portion; cutting off the third rib along the side away from the inductor core component of the second wire fixing portion; Step 5, loading the inductor core component obtained in Step 4 into the outer shell of the chip inductor, and bending the second rib and the third rib upward so that the second rib and the third rib are attached to the outer side of the outer shell.

2. The manufacturing method of the chip inductor according to claim 1, wherein; A connecting rib is further arranged on the inner side of the second tape, and the connecting rib is connected to the inductor core component; the first rib and the connecting rib are arranged diagonally, and the second rib and the third rib are arranged diagonally.

3. The method for manufacturing a chip inductor according to claim 1, characterized in that: The incoming wire turning portion is arranged on the inner side of the first rib and extends upward, and the free end of the incoming wire turning portion is bent outward to form a hook portion; the first wire fixing portion and the second wire fixing portion are arranged on the same side, the upper end of the first wire fixing portion is bent upward above the second rib, and the upper end of the second wire fixing portion is bent upward above the third rib.

4. The manufacturing method of the chip inductor according to any one of claims 1 to 3, characterized in that: Positioning holes are arranged on both the first tape and the second tape.

5. The manufacturing method of the chip inductor according to claim 1, characterized in that: Multiple sets of connection positions are arranged between the first tape and the second tape, and each connection position is connected with an inductor core component.

6. The method for manufacturing a chip inductor according to claim 1, wherein: In Step 2, after the wire is output through the second wire fixing portion, it passes through the incoming wire turning portion and winds around the incoming wire turning portion of the next chip inductor winding frame structure.

7. The method for manufacturing a chip inductor according to claim 1, wherein: Laser cutting each rib plate connecting the inductor core component.

8. The manufacturing method of the chip inductor according to claim 1, characterized in that: In Step 3, after the first wire fixing portion is bent, it is resistance welded to the second rib; after the second wire fixing portion is bent, it is resistance welded to the third rib.

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