Common mode inductor capable of improving welding effect

Abstract

The utility model relates to the technical field of inductors, and discloses a common mode inductor capable of improving the welding effect, which comprises a mold core, a magnetic core side column is fixedly connected to the outer wall of the mold core, a groove is formed in one side of the interior of the magnetic core side column, and positioning grooves in bilateral symmetry are formed in the other side of the interior of the magnetic core side column. The outer wall of the magnetic core side column is fixedly connected with bilaterally symmetrical metal sheets, limiting assemblies are arranged on the outer walls of the two metal sheets, and the outer walls of the metal sheets are attached to one side of the inner wall of the positioning groove. According to the utility model, the metal sheets are mounted on the magnetic core side columns, and the grooves are formed in the outer sides of the magnetic core side columns, so that the first winding and the second winding are connected with the metal patches; according to the design, the assembly layout is simplified, and the assembling steps in the manufacturing process are reduced, so that the manufacturing efficiency of the product is improved; in addition, product miniaturization is achieved, the manufacturing cost is further reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of inductors, in particular to a common mode inductor capable of improving welding effect. Background Art

[0002] A common-mode inductor is an inductor used to measure common-mode current in a circuit. Common-mode current is current that flows in all conductors in a circuit with the same direction and equal amplitude. This inductor is usually designed in a ring shape, surrounding a portion of the circuit or the entire circuit, so that the common-mode current in the entire circuit can be measured. Common-mode current can be caused by power supply noise, poor ground loops, or other external interference. Using common-mode inductors helps detect and measure common-mode current, thereby helping circuit designers better understand common-mode noise in the circuit and take appropriate measures to reduce its impact. In terms of welding, the performance and design of common-mode inductors affect the welding effect. Factors such as accuracy, sensitivity, material selection, and structural design all have an impact on the welding effect. Therefore, choosing a properly designed and excellent common-mode inductor can help improve the welding effect and ensure the reliability and performance of the circuit.

[0003] Most of the existing common-mode inductors are welded by winding a single coil around the outer wall of the magnetic core during use. However, the use of a single set of coils in the prior art not only requires a large amount of work, but also repeating the above steps after winding one circle will increase the welding process and reduce the welding efficiency. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a common-mode inductor that can improve the welding effect, aiming to improve the problem that the winding method of a single coil used in the prior art is not conducive to convenient processing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a common-mode inductor capable of improving welding effect, comprising a mold core, the outer wall of the mold core is fixedly connected to a magnetic core side column, one side of the inner part of the magnetic core side column is provided with a groove, the other side of the inner part of the magnetic core side column is provided with a left-right symmetrical positioning groove, the outer wall of the magnetic core side column is fixedly connected to a left-right symmetrical metal sheet, the outer walls of the two metal sheets are both provided with a limiting component, and the outer wall of the metal sheet is attached to one side of the inner wall of the positioning groove.

[0006] Furthermore, the limiting assembly includes a positioning block, one side of the outer wall of the positioning block is fixedly connected to one side of the outer wall of the metal sheet, a lower part away from the positioning block is fixedly connected to a limiting hook, and one side of the outer wall of the limiting hook is fixedly connected to one side of the outer wall of the metal sheet.

[0007] Furthermore, a top cover is fixedly connected to the upper surface of the magnetic core side column, and the top cover covers directly above the mold core and the groove.

[0008] Furthermore, the outer wall of the mold core is fixedly connected with a first winding and a second winding, and the first winding and the second winding are arranged in a staggered winding distribution.

[0009] Furthermore, one end of the first winding is fixedly connected to an outer wall of the metal sheet, and one end of the first winding is attached to the upper surface of the positioning block and is engaged with the inner wall of the limiting hook.

[0010] Furthermore, one end of the second winding is fixedly connected to the outer wall of another metal sheet.

[0011] Furthermore, the groove is arranged in an inverted trapezoidal shape, and the first winding and the second winding both extend through the inner wall of the groove.

[0012] Furthermore, four metal sheets are arranged in an L shape, and the four metal sheets are respectively arranged at the four corners of the side column of the magnetic core.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the connection between the first winding and the second winding and the metal patch is achieved by installing a metal sheet on the side column of the magnetic core and providing a groove on the outer side of the side column of the magnetic core; this design simplifies the component layout, reduces the assembly steps in the manufacturing process, and thus improves the manufacturing efficiency of the product; in addition, the product is miniaturized, further reducing the manufacturing cost and improving the production efficiency.

[0015] 2. In the utility model, the connection between one end of the first winding and the second winding and the metal patch is arranged on the side surface of the magnetic core, which is helpful for the welding process; this structural design makes the welding operation more convenient and improves the stability and reliability of the welding connection, thereby improving the welding performance of the product; the improvement of the welding effect helps to ensure product quality and reduce the adverse effects caused by welding problems in production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a common-mode inductor proposed by the utility model that can improve welding effect;

[0017] Figure 2 A schematic diagram of a magnetic core side column of a common mode inductor proposed by the utility model that can improve welding effect;

[0018] Figure 3 The utility model is a schematic diagram of a disassembly of a common-mode inductor which can improve welding effect.

[0019] Legend:

[0020] 1. Mold core; 2. Magnetic core side column; 3. Groove; 4. Positioning groove; 5. Metal sheet; 6. Limiting assembly; 601. Positioning block; 602. Limiting hook; 7. Top cover; 8. First winding; 9. Second winding. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1-3 , the utility model provides an embodiment: a common-mode inductor that can improve the welding effect, including a mold core 1, the outer wall of the mold core 1 is fixedly connected to a magnetic core side column 2, a groove 3 is opened on one side of the inner side of the magnetic core side column 2, and a left-right symmetrical positioning groove 4 is opened on the other side of the inner side of the magnetic core side column 2, and the outer wall of the magnetic core side column 2 is fixedly connected to a left-right symmetrical metal sheet 5, and the outer walls of the two metal sheets 5 are both provided with a limiting component 6, and the outer wall of the metal sheet 5 is attached to one side of the inner wall of the positioning groove 4; the limiting component 6 includes a positioning block 601, one side of the outer wall of the positioning block 601 is fixedly connected to one side of the outer wall of the metal sheet 5, and the lower part away from the positioning block 601 is fixedly connected to a limiting hook 602, and one side of the outer wall of the limiting hook 602 is fixedly connected to one side of the outer wall of the metal sheet 5; the groove 3 is arranged in an inverted trapezoidal shape, and the first winding 8 and the second winding 9 both extend through the inner wall of the groove 3; the metal sheet 5 is arranged in an L shape and has four, and the four metal sheets 5 are respectively arranged at the four corners of the magnetic core side column 2;

[0023] Specifically, the first winding 8 and the second winding 9 are wound on the outer wall of the core 1 in an interlaced manner. This interlaced winding method can not only improve the electromagnetic performance of the magnetic core, but also increase the stability of its structure. Next, the lead-out end of the first winding 8 is installed on the outer wall of one of the metal sheets 5 through the groove 3. This design enables the lead-out end of the first winding 8 to be engaged with the outer wall of the limiting hook 602, thereby achieving stable fixation. At this time, the second winding 9 is interlaced with the first winding 8. At the same time, the lead-out end of the second winding 9 is set on the outer wall of another metal sheet 5 in the opposite direction to the first winding 8. This design not only allows the magnetic fields between the two windings to cancel each other, thereby reducing the weight of the magnetic core, but also achieves better installation stability.

[0024] Reference Figure 1-3, a top cover 7 is fixedly connected to the upper surface of the core side column 2, and the top cover 7 covers the core 1 and the groove 3; a first winding 8 and a second winding 9 are fixedly connected to the outer wall of the core 1, and the first winding 8 and the second winding 9 are arranged in a staggered winding distribution; one end of the first winding 8 is fixedly connected to the outer wall of a metal sheet 5, and one end of the first winding 8 is attached to the upper surface of the positioning block 601 and is engaged with the inner wall of the limit hook 602; one end of the second winding 9 is fixedly connected to the outer wall of another metal sheet 5;

[0025] Specifically, first, the top cover 7 is installed on the outer wall of the core side column 2. The purpose of this step is to enable the top cover 7 to be tightly combined with the core side column 2 to ensure that it will not shift during use. Then, the top cover 7 will completely cover the outside of the groove 3. This design enables the top cover 7 to effectively protect the first winding 8 and the second winding 9 and prevent them from falling off due to external factors. The design of the top cover 7 is not limited to covering the groove 3, it also extends to the upper part of the first winding 8 and the second winding 9. This design idea is to ensure that the first winding 8 and the second winding 9 can remain stable throughout the entire working process and will not loosen or fall off due to long-term operation. This design concept solves the problem of equipment failure caused by coil shedding from the source, greatly improving the reliability and stability of the equipment.

[0026] Working principle: By winding the first winding 8 and the second winding 9 on the outer wall of the core 1 in a staggered manner, and then installing four metal sheets 5 on the inner walls of the positioning grooves 4 at the four corners of the core side column 2, the effect of facilitating the quick installation of the positioning metal sheet 5 is achieved. At this time, the lead-out end of the first winding 8 is installed on the outer wall of one of the metal sheets 5 through the groove 3, so that the lead-out end of the first winding 8 is engaged with the outer wall of the limiting hook 602 and fixed, thereby achieving the effect of facilitating welding. At this time, the second winding 9 is staggered with the first winding 8. At this time, the lead-out end of the second winding 9 is set on the outer wall of another metal sheet 5 in the opposite direction of the first winding 8, thereby achieving the effect of facilitating grouped lightweight installation. Then, the top cover 7 is installed on the outer wall of the core side column 2, so that the top cover 7 covers the outside of the groove 3, and then the top cover 7 covers the upper part of the first winding 8 and the second winding 9, thereby preventing the first winding 8 and the second winding 9 from falling off.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A common mode inductor capable of improving welding effect, comprising a core (1), characterized in that: The outer wall of the mold core (1) is fixedly connected to a magnetic core side column (2), one side of the inner part of the magnetic core side column (2) is provided with a groove (3), the other side of the inner part of the magnetic core side column (2) is provided with a left-right symmetrical positioning groove (4), the outer wall of the magnetic core side column (2) is fixedly connected to a left-right symmetrical metal sheet (5), the outer walls of the two metal sheets (5) are both provided with a limiting component (6), and the outer wall of the metal sheet (5) is attached to one side of the inner wall of the positioning groove (4).

2. A common mode inductor capable of improving welding effect according to claim 1, characterized in that: The limiting assembly (6) comprises a positioning block (601), one side of the outer wall of the positioning block (601) is fixedly connected to one side of the outer wall of the metal sheet (5), a lower part of a side away from the positioning block (601) is fixedly connected to a limiting hook (602), and one side of the outer wall of the limiting hook (602) is fixedly connected to one side of the outer wall of the metal sheet (5).

3. A common mode inductor capable of improving welding effect according to claim 2, characterized in that: A top cover (7) is fixedly connected to the upper surface of the magnetic core side column (2), and the top cover (7) covers directly above the mold core (1) and the groove (3).

4. A common mode inductor capable of improving welding effect according to claim 3, characterized in that: The outer wall of the mold core (1) is fixedly connected with a first winding (8) and a second winding (9), and the first winding (8) and the second winding (9) are arranged in a staggered winding distribution.

5. A common mode inductor capable of improving welding effect according to claim 4, characterized in that: One end of the first winding (8) is fixedly connected to the outer wall of one of the metal sheets (5), and one end of the first winding (8) is attached to the upper surface of the positioning block (601) and is engaged with the inner wall of the limiting hook (602).

6. A common mode inductor capable of improving welding effect according to claim 5, characterized in that: One end of the second winding (9) is fixedly connected to the outer wall of another metal sheet (5).

7. A common mode inductor capable of improving welding effect according to claim 6, characterized in that: The groove (3) is arranged in an inverted trapezoidal shape, and the first winding (8) and the second winding (9) both extend through the inner wall of the groove (3).

8. A common mode inductor capable of improving welding effect according to claim 7, characterized in that: Four metal sheets (5) are arranged in an L shape, and the four metal sheets (5) are respectively arranged at the four corners of the magnetic core side column (2).

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