Novel chip inductor structure

Abstract

The utility model discloses a novel chip inductor structure, which relates to the technical field of electronic components and comprises a base, pins at the side ends of the base and a coil on the base, the coil is provided with leads connected with the pins, a fixing column is arranged on the base, a cover plate is arranged on the fixing column, and a pointing piece is arranged on the cover plate. According to the utility model, the direction of the pin can be quickly known by using the pointing piece on the cover plate, so that the reverse direction of the pin during manual chip mounting is prevented, the dislocation of the pin is avoided, and the chip mounting efficiency is improved; and meanwhile, the welding position is more accurate when a worker performs welding through the bonding pad, welding is facilitated, solder paste is effectively prevented from moving to other positions, the welding effect is better, and the welding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic components, in particular to a novel patch inductor structure. Background Art

[0002] In the development process of electronic components, SMD (Surface Mounted Devices) has been widely used due to its advantages such as small size, high performance, and convenient for automated production.

[0003] Among them, the magnetic ring patch inductor is a common type of patch inductor, which is widely used in various electronic devices, especially those applications that require high-frequency operation and compact design. The core of the magnetic ring patch inductor is a ring-shaped magnetic core made of ferrite or other magnetic materials, and the winding is tightly wound around the magnetic ring.

[0004] However, at present, when workers perform the patching work of magnetic ring patch inductors, there are problems such as reverse patching pin positions and disordered pin positions, resulting in low patching efficiency, an increased probability of defective products, and the need for frequent rework.

[0005] At the same time, due to the relatively thin pins, they are prone to deformation when affected by external forces, resulting in insufficient fit between the pins and the PCB board during welding, increasing the welding difficulty, affecting the patching efficiency, and the pins are also prone to skew during the welding process, resulting in poor welding effects.

[0006] Therefore, it is necessary to propose a new technical solution to solve the above problems. Summary of the Utility Model

[0007] The utility model aims to provide a technical solution that can solve the problems of easy reverse of pin positions during patching, low welding efficiency, and poor welding effects to overcome the above deficiencies.

[0008] To achieve the above object, the utility model provides the following technical solution: A novel patch inductor structure, including a base, pins at the side end of the base, and a coil on the base. The coil is provided with leads connected to the pins. The base is provided with fixing columns, and a cover plate is arranged on the fixing columns. A pointing member is arranged on the cover plate;

[0009] The lower side of the pin is provided with a pad, and an arc-shaped welding groove is formed on the pad. Among them, the pad is made of a conductive metal material.

[0010] As a further solution of the utility model: The base is further provided with a plurality of limiting rods. The top ends of the limiting rods have clamping portions, and the plurality of limiting rods are annularly distributed at the position of the inner circle of the coil. Among them, the limiting rods and the clamping portions are made of insulating materials with elastic deformation such as rubber.

[0011] As a further solution of the present utility model: a fixing groove is provided on the fixing column, and a fixing rod is provided on the side of the cover plate opposite to the pointing member.

[0012] As a further solution of the present utility model: the lead wire is wound around the lead pin.

[0013] As a further solution of the present utility model: a notch is formed on one side of the base.

[0014] As a further solution of the present utility model: the clamping portion is arranged in an arc shape.

[0015] As a further solution of the present utility model: the height from the lower side of the clamping portion to the ground of the limiting rod is equal to the height of the coil.

[0016] As a further solution of the present utility model: the fixing column, the cover plate and the fixing rod are all made of rubber or epoxy resin material or other insulating materials.

[0017] As a further solution of the present utility model: the solder pad is fixedly welded to the lead pin.

[0018] Compared with the prior art, the beneficial effects of the present technical solution are as follows:

[0019] 1. When workers use the surface mount inductor for surface mounting operation, they can quickly know the direction of the lead pins by using the pointing member on the cover plate, thus preventing the lead pins from being reversed during manual surface mounting, avoiding lead pin misalignment, and improving the surface mounting efficiency.

[0020] 2. After placing the surface mount inductor at the preset position on the PCB board, the arc-shaped welding groove on the solder pad is aligned with the welding position on the PCB board. At this time, workers can directly insert the solder wire and the soldering iron tip into the arc-shaped welding groove, and then weld and fix the solder pad and the PCB board along the arc-shaped welding groove. Through the setting of the solder pad and the arc-shaped welding groove, the welding position is more accurate during welding, which is convenient for welding, effectively avoids the solder paste from moving to other positions, makes the welding effect better, and at the same time improves the welding efficiency.

[0021] 3. Through the detachable setting of the cover plate, it is convenient to remove the coil from the base, without heating and melting the solder at the welding point to remove the surface mount inductor, which is convenient for replacing the coil. And the coil is limited by the limiting rod and the clamping portion after the coil is assembled, so that the coil can be fixedly limited after being assembled without affecting the disassembly and assembly of the coil.

[0022] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 is a structural schematic diagram of the present invention;

[0025] Figure 2 is a structural schematic diagram of the decomposed cover plate of the present invention;

[0026] Figure 3 is a structural schematic diagram of the base of the present invention;

[0027] Figure 4 is a structural schematic diagram of the solder pad of the present invention;

[0028] The corresponding reference numerals in the drawings are explained as follows:

[0029] 1. Base; 2. Pin; 3. Coil; 4. Fixed post; 5. Cover plate; 6. Solder pad; 7. Limit rod;

[0030] 101. Notch;

[0031] 301. Lead wire;

[0032] 401. Fixed groove;

[0033] 501. Pointing member; 502. Fixed rod;

[0034] 601. Arc-shaped welding groove;

[0035] 701. Clamping part. Detailed implementation manners

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0037] Please refer to Figures 1-4 , a novel chip inductor structure, including a base 1, pins 2 at the side end of the base 1, and a coil 3 on the base 1. The coil 3 is provided with a lead wire 301 connected to the pins 2.

[0038] The coil 3 includes a toroidal magnetic core made of ferrite or other magnetic materials, and a winding (mostly copper wire) wound around the magnetic core. Then, leads are drawn out from the winding and connected to the pin 2. During soldering, the pin 2 can be soldered and fixed to a preset position on the PCB board to form an electrical connection, thereby enabling the surface mount inductor to be disposed on the circuit of the PCB board. The pin 2 is located on both sides of the base 1 and can be multiple in number.

[0039] In the embodiment of the present utility model, referring to Figures 1-2 , a fixing post 4 is further provided on the base 1. A cover plate 5 is provided on the fixing post 4, and a pointing member 501 is provided on the cover plate 5. The fixing post 4 is at the axis center of the coil 3, that is, the coil 3 sleeved the fixing post 4 inside.

[0040] Specifically, when workers perform surface mounting operations using the surface mount inductor, they can quickly know the direction of the pin 2 by using the pointing member 501 on the cover plate 5, thereby preventing the pin 2 from being reversed during manual surface mounting, avoiding misalignment of the pin 2, and improving the surface mounting efficiency.

[0041] In the embodiment of the present utility model, referring to Figure 1 and Figure 4 , a solder pad 6 is provided on the lower side surface of the pin 2, and an arc-shaped welding groove 601 is formed on the solder pad 6. Among them, the solder pad 6 is made of a conductive metal material.

[0042] Specifically, after the surface mount inductor is placed at the preset position on the PCB board, the arc-shaped welding groove 601 on the solder pad 6 is aligned with the welding position on the PCB board. At this time, workers can directly insert the solder wire and the soldering iron tip into the arc-shaped welding groove 601, and then solder and fix the solder pad 6 and the PCB board along the arc-shaped welding groove 601, so that the pin 2 and the coil 3 are electrically connected to the PCB board. Through the setting of the solder pad 6 and the arc-shaped welding groove 601, the welding position is more accurate during soldering by workers, which is convenient for soldering, effectively avoids the solder paste from moving to other positions, makes the welding effect better, and simultaneously improves the soldering efficiency.

[0043] Preferably, the solder pad 6 is soldered and fixed to the pin 2 to make the solder pad 6 more firmly fixed and avoid loosening.

[0044] Preferably, the lead 301 is wound around the pin 2. Through this setting, it is convenient to assemble and remove the coil 3.

[0045] Preferably, a fixing groove 401 is formed on the fixing post 4, and a fixing rod 502 is provided on the side of the cover plate 5 opposite to the pointing member 501.

[0046] With this setting, the cover plate 5 can be quickly fixed on the fixing post 4 through the fixing rod 502 and the fixing groove 401. At the same time, the cover plate 5 has the effect of limiting the coil 3. And by quickly removing and installing the cover plate 5, it is also possible to conveniently remove the coil 3 from the base 1 without heating and melting the solder at the welding point to remove the surface mount inductor.

[0047] Among them, the fixing post 4, the cover plate 5, and the fixing rod 502 are all made of rubber, epoxy resin material or other insulating materials to ensure that the performance in the circuit of the surface mount inductor is not affected. And the fixing rod 502 can be slightly larger than the fixing groove 401. When inserted, the fixing rod 502 generates a certain deformation and is squeezed into the inside of the fixing groove 401, so that the cover plate 5 can have a certain fixity on the fixing post 4.

[0048] In the embodiment of the present utility model, referring to Figures 1-3 , a plurality of limiting rods 7 are further provided on the base 1. The top end of the limiting rod 7 has a clamping portion 701, and the plurality of limiting rods 7 are annularly distributed at the position of the inner circle of the coil 3. Among them, the limiting rod 7 and the clamping portion 701 are both made of insulating materials with elastic deformation such as rubber.

[0049] Specifically, when the coil 3 is placed on the base 1 from top to bottom, when the inner circle edge of the coil 3 touches the plurality of clamping portions 701, the plurality of limiting rods 7 and the clamping portions 701 will generate elastic deformation and shrink inward. And after the coil 3 completely falls on the base 1, the position of the clamping portion 701 is at the top of the coil 3. After the space is unrestricted, it performs elastic recovery, and then the coil 3 is fixed between the clamping portion 701 and the base 1, which is convenient for fixing the coil 3. Similarly, when removing the coil 3, the top surface of the coil 3 when lifted will squeeze the clamping portion 701 to make it shrink inward, so as to complete the removal of the coil 3. It can fix the position of the coil 3 when assembling the surface mount inductor, and at the same time it is convenient to remove the coil 3, so as to facilitate the replacement of the coil 3.

[0050] Preferably, the clamping portion 701 is arranged in an arc shape. Through this setting, the clamping portion 701 is convenient for force conduction, and then shrinks inward when being squeezed by the coil 3.

[0051] Preferably, the height from the lower side surface of the clamping portion 701 to the ground of the limiting rod 7 is equal to the height of the coil 3.

[0052] Specifically, through this setting, when the bottom surface of the coil 3 moves down to the top surface of the base 1, the clamping portion 701 is just not squeezed by the coil 3 and performs elastic recovery to limit the coil 3 on the base 1. At the same time, the effect of the same height is to enhance the limitation of the coil 3 and prevent the coil 3 from moving up and down.

[0053] Preferably, a notch 101 is formed on one side of the base 1 for better exerting force to take out the coil 3 upward.

[0054] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A novel chip inductor structure, comprising a base, pins at the side end of the base, and a coil on the base, wherein the coil is provided with a lead connected to the pins, characterized in that: The base is provided with a fixing column, the fixing column is provided with a cover plate, and the cover plate is provided with a pointing member; A soldering pad is disposed on the lower side of the pin, and an arc-shaped soldering groove is formed on the soldering pad, wherein the soldering pad is made of a conductive metal material.

2. The novel chip inductor structure according to claim 1 is characterized in that: The base is also provided with a plurality of limit rods, the top of each limit rod has a locking portion, and the limit rods are distributed in a ring shape at the inner circle of the coil, wherein the limit rods and the locking portion are made of insulating materials with elastic deformation such as rubber.

3. The novel chip inductor structure according to claim 1 is characterized in that: The fixing column is provided with a fixing groove, and the cover plate is provided with a fixing rod on a side opposite to the pointing member.

4. The novel chip inductor structure according to claim 1 is characterized in that: The lead wire is wound around the pin.

5. The novel chip inductor structure according to claim 1 is characterized in that: A notch is formed on one side of the base.

6. The novel chip inductor structure according to claim 2 is characterized in that: The clamping portion is arranged in an arc surface.

7. The novel chip inductor structure according to claim 2 is characterized in that: The height from the lower side of the locking portion to the ground of the limiting rod is equal to the height of the coil.

8. The novel chip inductor structure according to claim 3 is characterized in that: The fixing column, the cover plate and the fixing rod are all made of rubber or epoxy resin or other insulating materials.

9. The novel chip inductor structure according to claim 1 is characterized in that: The pad is fixed to the pin by welding.

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