A coil inductor

Abstract

The present application belongs to the field of electronic component technology, and provides a coil inductor, including a coil, which is formed by spirally winding a single layer of wire, a first lead wire is provided at the bottom of the coil, and the end of the first lead wire is provided with a first lead end extending outward from one side of the coil; a second lead wire is provided at the top of the coil, and the second lead wire is located on the side of the coil where the first lead end is located, extending downward along the side of the coil to the bottom of the coil, and the end of the second lead wire is provided with a second lead end parallel to the first lead end; a downwardly bent support portion is provided on the other side of the coil away from the first lead end and the second lead end. The coil of the wire of the present application forms a triangular structure by fixing the first lead end, the second lead end and the support portion on the circuit. The triangular structure is stable and reliable, and can reduce the force on the first lead end and the second lead end, thereby improving the structural reliability of the coil inductor.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic components, and particularly relates to a coil inductor. Background Art

[0002] A coil inductor is a component that can convert electrical energy into magnetic energy and store it. Its structure is similar to that of a transformer, but it has only one winding. A coil inductor has a certain inductance, which only hinders the change of current. A coil inductor is also called a choke, reactor, or dynamic reactor.

[0003] In the prior art, coil inductors are usually made of spirally wound enameled wire, and the overall structure is spiral. The bottom support points of the coil inductor are the two lead ends of the coil, and the two lead ends are fixedly welded to the circuit. Since the coil inductor is supported and fixed only by the two lead ends, the two lead ends are subjected to greater force, which will affect the lead ends, thereby causing the structure of the coil inductor to be unstable and affecting the normal operation of the coil inductor. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a coil inductor to solve the technical problem of unreliable bottom support and fixation of coil inductors in the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide a coil inductor, including a coil, the coil is spirally wound by a single layer of wire, a first lead wire is provided at the bottom of the coil, and the end of the first lead wire is provided with a first lead end extending beyond one side of the coil; a second lead wire is provided at the top of the coil, the second lead wire is located on the side of the coil where the first lead end is located, and extends downward along the side of the coil to the bottom of the coil, and the end of the second lead wire is provided with a second lead end parallel to the first lead end; a downwardly bent support portion is provided on the other side of the coil away from the first lead end and the second lead end.

[0006] The beneficial effects of the coil inductor provided by the present application are as follows: compared with the prior art, the coil inductor of the present application has a first lead wire provided at the bottom of the coil, and the end of the first lead wire is provided with a first lead end extending outward from one side of the coil; a second lead wire is provided at the top of the coil, and the second lead wire is located on the side of the coil where the first lead end is located, and extends downward along the side of the coil to the bottom of the coil, and the end of the second lead wire is provided with a second lead end parallel to the first lead end; a downwardly bent support portion is provided on the other side of the coil away from the first lead end and the second lead end, and the coil is fixed to the circuit by the first lead end, the second lead end and the support portion, and the first lead end, the second lead end and the support portion form a triangular structure, which is stable and reliable, and the three are subjected to uniform force, which can reduce the force on the first lead end and the second lead end, thereby improving the structural reliability of the coil inductor.

[0007] Improvements are made to the structure of the support portion, which includes a transverse wire body and connecting wire bodies located at both ends of the transverse wire body. One end of the connecting wire body is connected to the transverse wire body, and the other end is connected to the coil. The transverse wire body, the first lead-out end, and the second lead-out end are all located on the same horizontal plane, so that the first lead-out end, the second lead-out end, and the support portion form a triangular stable structure, thereby improving the structural stability of the coil inductor.

[0008] Improvements are made to the structure of the second lead wire. The second lead wire includes a horizontal lead wire and a vertical lead wire. One end of the vertical lead wire is connected to the top of the coil, and the other end is connected to the horizontal lead wire. The second lead end is located on the horizontal lead wire, so that the second lead wire is extended from the top of the coil to the bottom of the coil, making it convenient to connect the first lead end and the second lead end to the circuit.

[0009] Furthermore, the connection between the vertical lead and the top of the coil, and the connection between the vertical lead and the horizontal lead are both rounded structures, which can improve the installation strength and mechanical performance of the coil inductor.

[0010] Improvements are made to the structures of the first lead-out end, the second lead-out end, and the support portion. The first lead-out end and the second lead-out end are symmetrically arranged with respect to the central axis of the coil. The central axis of the support portion and the central axis of the coil are located on the same horizontal plane, so that the first lead-out end, the second lead-out end, and the support portion form an equilateral triangle structure, further improving the structural stability of the coil inductor.

[0011] Improvements are made to the structures of the first lead-out end, the second lead-out end and the support portion, so that the first lead-out end, the second lead-out end and the support portion are all located on the same horizontal plane, making it convenient to fix the first lead-out end, the second lead-out end and the support portion flatly on the circuit and prevent the coil inductor from tilting or falling.

[0012] The structure of the first lead wire is improved. The connection between the first lead wire and the bottom of the coil is a rounded structure, which can improve the stress distribution of the coil inductor and enhance the installation strength and mechanical properties of the coil inductor.

[0013] Improvements have been made to the structure of the single-layer wire, now made of enameled flat copper wire. This wire is easier to bend and less prone to breakage. Its thinness also makes this flat structure more space-efficient, further reducing the volume occupied by high-current coil inductors. The flat structure also effectively reduces resistance.

[0014] Improvements are made to the structure of the first lead wire and the second lead wire. The first lead wire, the second lead wire and the coil are integrally formed, that is, the coil is bent to form the first lead wire and the second lead wire. In this way, the connection strength between the first lead wire, the second lead wire and the coil can be improved, and poor contact will not occur, thereby ensuring stable operation of the high-current coil inductor.

[0015] Improvements are made to the structures of the first lead-out end, the second lead-out end and the support portion. The first lead-out end, the second lead-out end and the support portion are all de-painted and tin-lined. The paint layer of the enameled wire at these three locations is removed, and then a layer of tin metal is plated on the removed paint layer as a protective film. This method is pre-soldering, which means that the welding part is pre-moistened with solder to ensure the reliability of the connection and prevent the connection from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 Schematic diagram of the structure of the coil inductor provided in the embodiment of the present application Figure 1 ;

[0018] Figure 2 Schematic diagram of the structure of the coil inductor provided in the embodiment of the present application Figure 2 ;

[0019] Figure 3 A top view of a coil inductor provided in an embodiment of the present application;

[0020] Figure 4 This is a front view of the coil inductor provided in an embodiment of the present application.

[0021] Among them, the reference numerals in the figures are:

[0022] 1-coil; 11-first lead wire; 111-lead end; 12-second lead wire; 121-horizontal lead wire; 122-vertical lead wire; 123-second lead end; 13-support portion; 131-horizontal wire body; 132-connecting wire body; 14-rounded structure. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0024] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0025] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0026] Furthermore, 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 number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0027] The coil inductor provided in the embodiment of the present application is now described. Figure 1 and Figure 2A coil inductor includes a coil 1, which is formed by spirally winding a single layer of wire. A first lead wire 11 is provided at the bottom of the coil 1, and the end of the first lead wire 11 is provided with a first lead end 111 extending beyond one side of the coil 1; a second lead wire 12 is provided at the top of the coil 1, and the second lead wire 12 is located on the side of the coil 1 where the first lead end 111 is located, and extends downward along the side of the coil 1 to the bottom of the coil 1, and the end of the second lead wire 12 is provided with a second lead end 123 parallel to the first lead end 111; a downwardly bent support portion 13 is provided on the other side of the coil 1 away from the first lead end 111 and the second lead end 123.

[0028] The coil inductor provided by the present application is compared with the prior art. The bottom of the coil 1 of the coil inductor of the present application is provided with a first lead wire 11, and the end of the first lead wire 11 is provided with a first lead end 111 extending to the outside of one side of the coil 1; the top of the coil 1 is provided with a second lead wire 12, and the second lead wire 12 is located on the side of the coil 1 where the first lead end 111 is located, and extends downward along the side of the coil 1 to the bottom of the coil 1, and the end of the second lead wire 12 is provided with a second lead end parallel to the first lead end 111. Lead end 123; A downwardly bent support portion 13 is provided on the other side of the coil 1 away from the first lead end 111 and the second lead end 123. The coil is fixed to the circuit through the first lead end 111, the second lead end 123 and the support portion 13. The first lead end 111, the second lead end 123 and the support portion 13 form a triangular structure. The triangular structure is stable and reliable, and the three are subjected to uniform force, which can reduce the force on the first lead end 111 and the second lead end 123, thereby improving the structural reliability of the coil inductor.

[0029] For details, please refer to Figure 1 and Figure 2 The supporting portion 13 includes a horizontal wire body 131 and a connecting wire body 132 located at both ends of the horizontal wire body 131, one end of the connecting wire body 132 is connected to the horizontal wire body 131, and the other end is connected to the coil 1, the horizontal wire body 131, the first lead end 111 and the second lead end 123 are all located on the same horizontal plane, so that the first lead end 111, the second lead end 123 and the supporting portion 13 form a triangular stable structure, thereby improving the structural stability of the coil inductor; the second lead wire 12 includes a horizontal lead 121 and a vertical lead 122, one end of the vertical lead 122 is connected to the top of the coil 1, and the other end is connected to the horizontal lead 121, and the second lead end 123 is located on the horizontal lead 121, so that the second lead wire 12 is extended from the top of the coil 1 to the bottom of the coil 1, so that the horizontal lead 121 of the first lead end 111 and the second lead end 123 is welded and fixed to the circuit.

[0030] In one embodiment, see Figure 3 and Figure 4 The first lead-out end 111 and the second lead-out end 123 are symmetrically arranged with respect to the central axis of the coil 1, and the central axis of the support portion 13 is located on the same horizontal plane as the central axis of the coil 1, so that the first lead-out end 111, the second lead-out end 123 and the support portion 13 form an equilateral triangle structure, further improving the structural stability of the inductor of the coil 1.

[0031] In one embodiment, see Figure 1 and Figure 4 The first lead-out end 111, the second lead-out end 123 and the support portion 13 are all located on the same horizontal plane, which facilitates fixing the first lead-out end 111, the second lead-out end 123 and the support portion 13 flatly on the circuit to prevent the coil inductor from tilting.

[0032] In one embodiment, see Figure 1 and Figure 2 The connection between the first lead wire 11 and the bottom of the coil 1 is a rounded structure 14, the connection between the vertical lead 122 and the top of the coil 1, and the connection between the vertical lead 122 and the horizontal lead 121 are all rounded structures 14. The rounded structure 14 can improve the stress distribution of the coil inductor and improve the installation strength and mechanical properties of the coil inductor.

[0033] In one embodiment, the single-layer wire is an enameled flat copper wire. Enameled flat copper wire is easier to bend and less prone to breakage. Furthermore, its thinness makes this flat structure more space-efficient, further reducing the volume occupied by high-current coil inductors. Furthermore, the flat structure of the enameled wire effectively reduces resistance.

[0034] In one embodiment, the first lead wire 11, the second lead wire 12 and the coil 1 are integrally formed, that is, the coil is bent to form the first lead wire 11 and the second lead wire 12. In this way, the connection strength between the first lead wire 11, the second lead wire 12 and the coil 1 can be improved, and poor contact will not occur, thereby ensuring stable operation of the high-current coil inductor.

[0035] In one embodiment, the first lead-out end 11, the second lead-out end 12 and the support portion 13 are all de-painted and tinned. The paint layer of the enameled wire at these three locations is removed, and then a layer of tin metal is plated on the removed paint layer as a protective film. This method is pre-soldering, that is, the welding part is pre-moistened with solder to ensure the reliability of the connection and prevent the connection from loosening.

[0036] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A coil inductor, comprising a coil, characterized in that: The coil is formed by spirally winding a single layer of wire, and a first lead-out wire is provided at the bottom of the coil, and the end of the first lead-out wire is provided with a first lead-out end extending beyond one side of the coil; a second lead-out wire is provided at the top of the coil, and the second lead-out wire is located on the side of the coil where the first lead-out end is located, and extends downward along the side of the coil to the bottom of the coil, and the end of the second lead-out wire is provided with a second lead-out end parallel to the first lead-out end; a downwardly bent support portion is provided on the other side of the coil away from the first lead-out end and the second lead-out end; the support portion includes a horizontal wire body and a connecting wire body located at both ends of the horizontal wire body, one end of the connecting wire body is connected to the horizontal wire body, and the other end is connected to the coil, and the horizontal wire body, the first lead-out end and the second lead-out end are all located on the same horizontal plane; the second lead-out wire includes a horizontal lead and a vertical lead.

2. The coil inductor according to claim 1, wherein: One end of the vertical lead is connected to the top of the coil, and the other end is connected to the horizontal lead, and the second lead end is located on the horizontal lead.

3. The coil inductor according to claim 2, wherein: The connection point between the vertical lead and the top of the coil and the connection point between the vertical lead and the horizontal lead are both rounded structures.

4. The coil inductor according to claim 1, wherein: The first lead-out end and the second lead-out end are symmetrically arranged with respect to the central axis of the coil, and the central axis of the support portion and the central axis of the coil are located on the same horizontal plane.

5. The coil inductor according to claim 1, wherein: The first lead-out end, the second lead-out end, and the supporting portion are all located on the same horizontal plane.

6. The coil inductor according to claim 1, wherein: The connection between the first lead wire and the bottom of the coil is a rounded structure.

7. The coil inductor according to claim 1, wherein: The single-layer wire body is an enameled copper rectangular wire.

8. The coil inductor according to claim 1, wherein: The first lead wire, the second lead wire, and the coil are integrally formed.

9. The coil inductor according to claim 1, wherein: The first lead-out end, the second lead-out end and the supporting portion are all painted and tin-lined.

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