Anti-electromagnetic interference chip inductor

Abstract

The utility model discloses an anti-electromagnetic interference chip inductor which comprises an upper shell body, two sides of the upper shell body are fixedly connected with power connection sheets, the bottom of the upper shell body is fixedly connected with a base, the center position of the top of the base is fixedly connected with a butt joint column, the outer side of the base is fixedly connected with a butt joint sleeve, and two sides of the base are provided with fixing grooves. A butt joint groove is formed in the upper shell body, a magnetic core body is fixedly connected to the interior of the butt joint groove, a coil is fixedly connected to the outer side of the magnetic core body, the upper shell body and the power connection piece each comprise a copper base body, and a microwave substance absorption layer is fixedly connected to the top of each copper base body. The anti-electromagnetic interference adaptability of the chip inductor is improved, so that the chip inductor can be adapted to chip inductors of different models, and the chip inductors of different sizes can resist electromagnetic interference.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic components, in particular to a chip inductor capable of resisting electromagnetic interference. Background Art

[0002] Inductors, also known as chokes, reactors, and dynamic reactors, are components that can convert electrical energy into magnetic energy and store it. They have a certain inductance and only hinder the change of current. If there is no current flowing through the inductor, it will try to hinder the current from flowing through it when the circuit is connected; if there is current flowing through the inductor, it will try to maintain the current unchanged when the circuit is disconnected.

[0003] The patent document with the prior art publication number CN214624632U provides a chip inductor with anti-electromagnetic interference performance, including an inductor body, the inductor body is provided with a plastic shell with a cavity inside, the plastic shell is symmetrically equipped with magnets fixed on both sides, one surface of the magnet is wound with a coil from bottom to top and the coil extends from the top to the other magnet and is wound from top to bottom, the two ends of the coil extend to the outside from both sides of the plastic shell respectively, a partition block for inserting the coil is provided between the magnets, the inner wall of the plastic shell is padded with a silicone layer, and the surface of the plastic shell is installed with a plurality of anti-electromagnetic interference filters fixed in the corners. Multiple independent spaces are formed inside the plastic shell to accommodate the magnets, and the magnet coils in each space do not interfere with each other. In addition, the inner wall is provided with a silicone layer to close the internal space, so as to avoid the phenomenon of electromagnetic interference between the spaces. At the same time, the anti-electromagnetic interference filter on the surface can resist the interference of the external magnetic field and ensure the integrity of its own magnetic field.

[0004] However, during the use of existing anti-electromagnetic interference chip inductors, although the anti-electromagnetic interference filter can resist the interference of external magnetic fields, due to the size of the chip inductor, it cannot be adapted to different types of chip inductors, resulting in poor anti-electromagnetic interference adaptability of the chip inductor. For this reason, we propose an anti-electromagnetic interference chip inductor. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides an anti-electromagnetic interference chip inductor to solve the problems raised in the above background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: an electromagnetic interference resistant chip inductor, comprising an upper shell body, both sides of the upper shell body are fixedly connected with power connection plates, the bottom of the upper shell body is fixedly connected with a base, the top center of the base is fixedly connected with a docking column, the outer side of the base is fixedly connected with a docking sleeve, both sides of the base are provided with fixing grooves, the interior of the upper shell body is provided with a docking groove, the interior of the docking groove is fixedly connected with a magnetic core body, the outer side of the magnetic core body is fixedly connected with a coil, the upper shell body and the power connection plates both include a copper substrate, and the top of the copper substrate is fixedly connected with a microwave material absorption layer.

[0009] Preferably, a docking port is provided at the bottom end of the magnetic core body, the inner diameter of the docking port is matched with the diameter of the docking post, and the docking port is movably connected to the docking post.

[0010] Preferably, the copper substrate is made of copper material, and an insulating adhesive layer is fixedly connected to the bottom of the copper substrate.

[0011] Preferably, the microwave absorbing layer is made of microwave absorbing material.

[0012] Preferably, both ends of the coil are welded to one side of the power connection plate, and the coil is wound by copper wire.

[0013] Preferably, two power connection plates are provided, the two power connection plates are of the same size, and the two power connection plates are symmetrically arranged.

[0014] (III) Beneficial effects

[0015] The utility model provides a chip inductor for resisting electromagnetic interference, which has the following beneficial effects:

[0016] (1) This type of anti-electromagnetic interference chip inductor has a microwave material absorption layer and a copper substrate. When the chip inductor is used, the power supply can be transmitted to one end of the coil through one of the power supply plates, and then the power supply is applied to the other power supply plate from the other end of the coil. When the chip inductor is in use, the coil is located inside the upper shell body and the base. At this time, the electromagnetic waves generated by the coil will be blocked by the microwave material absorption layer and the copper substrate to the inside of the upper shell body and the base. Since the copper substrate is made of copper material, And copper has good attenuation characteristics of magnetic waves and electric waves, which can effectively shield the interference of electromagnetic waves and prevent the magnetic waves generated by the coil from being transmitted. At the same time, when the external magnetic waves act on the upper shell body and the base, because the microwave material absorption layer is a kind of material that can effectively absorb microwave radiation, its principle is mainly to absorb microwave radiation by the material and convert it into heat energy to achieve wave absorption, thereby isolating the external electromagnetic interference. Therefore, the anti-electromagnetic interference adaptability of the chip inductor is improved, so that it can be adapted to different types of chip inductors, so that chip inductors of different sizes can resist electromagnetic interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of the base of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the upper shell body of the utility model;

[0020] Figure 4 It is a cross-sectional view of the upper shell body of the utility model.

[0021] In the figure: 1. upper shell body; 2. power connection plate; 3. base; 4. docking sleeve; 5. docking column; 6. fixing groove; 7. docking groove; 8. magnetic core body; 9. docking port; 10. coil; 11. microwave material absorption layer; 12. copper matrix; 13. insulating rubber layer. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4The utility model provides a technical solution: an anti-electromagnetic interference chip inductor, including an upper shell body 1, both sides of the upper shell body 1 are fixedly connected with power connection plates 2, the bottom of the upper shell body 1 is fixedly connected with a base 3, the top center of the base 3 is fixedly connected with a docking column 5, the outer side of the base 3 is fixedly connected with a docking sleeve 4, both sides of the base 3 are provided with fixing grooves 6, the interior of the upper shell body 1 is provided with a docking groove 7, the interior of the docking groove 7 is fixedly connected with a magnetic core 8, the outer side of the magnetic core 8 is fixedly connected with a coil 10, the upper shell body 1 and the power connection plates 2 both include a copper substrate 12, and the top of the copper substrate 12 is fixedly connected with a microwave material absorption layer 11.

[0024] In this embodiment, specifically, a docking port 9 is provided at the bottom end of the magnetic core body 8, the inner diameter of the docking port 9 is adapted to the diameter of the docking post 5, the docking port 9 is movably connected to the docking post 5, and when the docking post 5 is inserted into the docking port 9, it can play a role in limiting the magnetic core body 8.

[0025] In this embodiment, specifically, the copper substrate 12 is made of copper material, and an insulating rubber layer 13 is fixedly connected to the bottom of the copper substrate 12. The copper substrate 12 is made of copper material, and copper has good attenuation characteristics of magnetic waves and electric waves, which can effectively shield the interference of electromagnetic waves and prevent the magnetic waves generated by the coil 10 from being transmitted.

[0026] In this embodiment, specifically, the microwave material absorption layer 11 is made of microwave material absorption material. When external magnetic waves act on the upper shell body 1 and the base 3, because the microwave material absorption layer 11 is a type of material that can effectively absorb microwave radiation, its principle is mainly to absorb waves by absorbing microwave radiation through the material and converting it into heat energy, thereby isolating external electromagnetic interference.

[0027] In this embodiment, specifically, both ends of the coil 10 are welded to one side of the power connection plate 2, and the coil 10 is wound with copper wires. The coil 10 wound with copper wires can conduct electricity better.

[0028] In this embodiment, specifically, two power connection plates 2 are provided, the two power connection plates 2 are of the same size, and the two power connection plates 2 are symmetrically arranged. By bending and folding the power connection plates 2 into the fixing grooves 6, the power connection plates 2 will pull the base 3, and the upper shell body 1 and the base 3 can be firmly fixed.

[0029] Working principle: After the utility model is installed, first check the installation and safety protection of the utility model. When using the chip inductor, by soldering the power connection sheet 2 to the circuit of the circuit board and other components, the power can be transmitted to one end of the coil 10 through one of the power connection sheets 2, and then the other end of the coil 10 acts on the other power connection sheet 2 to energize. When the chip inductor is in use, because the coil 10 is located inside between the upper shell body 1 and the base 3, the electromagnetic generated by the coil 10 will be blocked by the microwave material absorption layer 11 and the copper matrix 12 to the upper shell body 1 and The inside of the base 3, because the copper matrix 12 is made of copper material, and copper has good attenuation characteristics of magnetic waves and electric waves, can effectively shield the interference of electromagnetic waves and prevent the magnetic waves generated by the coil 10 from being transmitted. At the same time, when the external magnetic waves act on the upper shell body 1 and the base 3, because the microwave material absorption layer 11 is a type of material that can effectively absorb microwave radiation, its principle is mainly to absorb microwave radiation by the material and convert it into heat energy to achieve wave absorption, thereby isolating from external electromagnetic interference, thus completing the use process of the utility model. The utility model has a simple structure and is safe and convenient to use.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-electromagnetic interference chip inductor, comprising an upper shell body (1), characterized in that: Both sides of the upper shell body (1) are fixedly connected with power connection plates (2), the bottom of the upper shell body (1) is fixedly connected with a base (3), a docking column (5) is fixedly connected at the center of the top of the base (3), a docking sleeve (4) is fixedly connected to the outside of the base (3), fixing grooves (6) are provided on both sides of the base (3), a docking groove (7) is provided inside the upper shell body (1), a magnetic core (8) is fixedly connected inside the docking groove (7), a coil (10) is fixedly connected to the outside of the magnetic core (8), and both the upper shell body (1) and the power connection plate (2) comprise a copper substrate (12), and a microwave material absorption layer (11) is fixedly connected to the top of the copper substrate (12).

2. The anti-electromagnetic interference chip inductor according to claim 1, characterized in that: A docking port (9) is provided at the bottom end of the magnetic core body (8); the inner diameter of the docking port (9) is matched to the diameter of the docking post (5); and the docking port (9) is movably connected to the docking post (5).

3. The anti-electromagnetic interference chip inductor according to claim 1, characterized in that: The copper base (12) is made of copper material, and an insulating adhesive layer (13) is fixedly connected to the bottom of the copper base (12).

4. The anti-electromagnetic interference chip inductor according to claim 1, characterized in that: The microwave absorbing layer (11) is made from microwave absorbing material.

5. The anti-electromagnetic interference chip inductor according to claim 1, characterized in that: Both ends of the coil (10) are welded to one side of the power connection plate (2); the coil (10) is formed by winding copper wire.

6. The anti-electromagnetic interference chip inductor according to claim 1, characterized in that: Two power connection plates (2) are provided, the two power connection plates (2) are of the same size, and the two power connection plates (2) are symmetrically arranged.

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