CN220774111U - Horizontal filtering common-mode inductor and household appliance - Google Patents
Horizontal filtering common-mode inductor and household appliance Download PDFInfo
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- CN220774111U CN220774111U CN202322533664.1U CN202322533664U CN220774111U CN 220774111 U CN220774111 U CN 220774111U CN 202322533664 U CN202322533664 U CN 202322533664U CN 220774111 U CN220774111 U CN 220774111U
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- 238000001914 filtration Methods 0.000 title claims abstract description 37
- 238000004804 winding Methods 0.000 claims abstract description 70
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910000859 α-Fe Inorganic materials 0.000 claims description 5
- 238000009413 insulation Methods 0.000 abstract description 9
- 230000008878 coupling Effects 0.000 abstract description 5
- 238000010168 coupling process Methods 0.000 abstract description 5
- 238000005859 coupling reaction Methods 0.000 abstract description 5
- 238000002955 isolation Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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Abstract
The utility model discloses a horizontal filtering common-mode inductor and a household appliance, and belongs to the technical field of common-mode inductors. The horizontal filtering common-mode inductor consists of a base, a magnetic core, a first winding and a second winding, wherein a first rib is arranged in the middle of the base; the magnetic core is of an annular structure, and the magnetic core is positioned on the base, so that the first ribs are positioned at the hollow part of the annular structure of the magnetic core; the first winding is wound on the magnetic core; the second winding is wound on the magnetic core, and the second winding is arranged opposite to the first winding so that the first rib is positioned between the first winding and the second winding. The horizontal filtering common-mode inductor and the household appliance provided by the utility model can realize insulation isolation of two windings without an insulation plugboard, the inductor surface is flat and free from skew, and the common-mode inductor coupling interference is low.
Description
Technical Field
The utility model belongs to the technical field of common-mode inductors, and particularly relates to a horizontal filtering common-mode inductor and a household appliance.
Background
In the existing household appliances, a motor, a singlechip, a silicon controlled rectifier, a switching power supply and the like are inductive components, certain electromagnetic interference can be generated during operation, and various potential safety hazards can be caused by the fact that the electromagnetic interference is not controlled. Therefore, the common mode inductance is widely used in various electronic devices such as a switching power supply and an inverter, and can suppress EMI (Electromagnetic Interference ), and functions as filtering, oscillation, delay, suppression of common mode current, and the like in a circuit.
The existing horizontal filtering common-mode inductor generally needs to select ferrite magnetic cores to be wound and then is added with insulating plugboards to isolate two windings, the insulating plugboards are inserted into the ferrite magnetic cores to be manually operated, the working efficiency is low, and the inductor body is easy to incline left and right, so that the flatness of the inductor is poor, and the coupling interference of the common-mode inductor is increased.
Disclosure of Invention
Aiming at the defects in the related art, the utility model aims to provide a horizontal filtering common-mode inductor and a household appliance so as to solve the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a horizontal filtering common mode inductor comprising:
the base is provided with a first rib in the middle;
the magnetic core is of an annular structure and is positioned on the base, so that the first ribs are positioned at the hollow part of the annular structure of the magnetic core;
the first winding is wound on the magnetic core;
the second winding is wound on the magnetic core, and the second winding is arranged opposite to the first winding so that the first rib is positioned between the first winding and the second winding.
In some embodiments, two first ribs are provided, and the interval distance between the two first ribs is adapted to the hollow length of the annular structure of the magnetic core.
In some embodiments, the horizontal filtering common mode inductor further includes a second rib disposed on the base, the second rib being located between the first rib and a side of the base, the second rib being parallel to the side of the base adjacent thereto.
In some embodiments, two second ribs are provided, and the two second ribs are disposed opposite to each other.
In some embodiments, four PIN PINs are arranged at the bottom of the base and are electrically connected with the first winding and the second winding respectively.
In some embodiments, the base is square, and the four PIN PINs are respectively arranged at four corners of the base.
In some embodiments, four through holes are formed in the base, and the setting positions of the four through holes correspond to the setting positions of the four PIN PINs respectively.
In some of these embodiments, the core is a ferrite core.
In some of these embodiments, the first winding and the second winding are copper wires.
The household appliance comprises the horizontal filtering common-mode inductor, and further comprises a circuit board, wherein a base of the horizontal filtering common-mode inductor is arranged on the circuit board.
Compared with the prior art, the utility model has the beneficial effects that:
the horizontal filtering common-mode inductor provided by the utility model consists of the base, the magnetic core, the first winding and the second winding, wherein the first rib and the second rib are arranged on the base, the first rib is arranged to ensure that the common-mode inductor can realize insulation isolation of the two windings without an insulation plugboard, the insulation withstand voltage and the creepage distance of the two windings are increased, the second rib is arranged to ensure that the surface of the inductor is flat and free from deflection, the common-mode inductor coupling interference is low, and the filtering effect is increased.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
FIG. 1 is a schematic diagram of a horizontal filtering common mode inductor according to an embodiment of the present utility model;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a schematic diagram of a base structure of an embodiment of a horizontal filtering common mode inductor and a household appliance according to the present utility model;
FIG. 5 is a top view of FIG. 4;
fig. 6 is a side view of fig. 4.
In the figure:
1. a base; 11. a first rib; 12. second ribs; 13. a through hole; 2. a magnetic core; 3. a first winding; 4. a second winding; 5. PIN.
Detailed Description
The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 6, an exemplary embodiment of a horizontal filtering common mode inductor according to the present utility model is shown, and the horizontal filtering common mode inductor includes a base 1, a magnetic core 2, a first winding 3, and a second winding 4.
The base 1 middle part is equipped with first rib 11, and first rib 11 is the cuboid structure, and first rib 11 sets up along its direction of height perpendicular base 1, and the height of first rib 11 does not exceed the height of magnetic core 2. The magnetic core 2 is of an annular structure, the magnetic core 2 is positioned on the base 1, so that the first ribs 11 are positioned at the hollow part of the annular structure of the magnetic core 2, the first winding 3 is wound on the magnetic core 2, the second winding 4 is also wound on the magnetic core 2, the second winding 4 is arranged opposite to the first winding 3, the first ribs 11 are positioned between the first winding 3 and the second winding 4, insulation and isolation of the first winding 3 and the second winding 4 through the first ribs 11 are ensured, and insulation and voltage resistance and creepage distance between the first winding 3 and the second winding 4 are increased.
In order to achieve a better insulation effect, two first ribs 11 are arranged, the two first ribs 11 are uniformly distributed in the middle of the base 1, and the interval distance between the two first ribs 11 is matched with the length of the hollow part of the annular structure of the magnetic core 2, so that the two first ribs 11 are located in the hollow part of the annular structure of the magnetic core 2 when the magnetic core 2 is placed on the base 1. The arrangement of the first ribs 11 avoids the subsequent manual operation of inserting the insulating plugboard, and improves the production efficiency by more than 30%.
In order to guarantee the planarization of inductance body, horizontal filtering common mode inductance still includes second rib 12, and second rib 12 is located on base 1, and second rib 12 is located between the side of first rib 11 and base 1, and second rib 12 and the side parallel arrangement of base 1 that is close to it. The magnetic core 2 is placed on the base 1 through the second ribs 12, in order to ensure that the magnetic core 2 can be stably placed, two second ribs 12 are arranged, and the two second ribs 12 are oppositely arranged. The arrangement of the second ribs 12 enables the inductor surface to be flat and free of deflection, common-mode inductive coupling interference is low, the filtering effect is improved, particularly the capability of filtering high-frequency interference is improved, and the interference is particularly aimed at more than 20 MHz.
The bottom of the base 1 is provided with four PIN feet 5, the four PIN feet 5 are respectively and electrically connected with the first winding 3 and the second winding 4, and specifically, the four PIN feet 5 are respectively and fixedly wound with the ends of the first winding 3 and the second winding 4. The base 1 is square, and four corners of base 1 are located respectively to four PIN feet 5, and four PIN feet 5 can firmly support whole base 1 when the installation, make the inductance installation more firm. Be equipped with four through-holes 13 on the base 1, the setting position of four through-holes 13 corresponds the setting position of four PIN feet 5 respectively, and it is protruding still evenly distributed to have a plurality of spacing along through-hole 13 circumference, plays the protection spacing effect to the connection of first winding 3 and second winding 4 and PIN foot 5, and the setting of through-hole 13 can make first winding 3 and second winding 4 be connected to PIN foot 5 conveniently, receives the protection of base 1, and is not fragile. The four corners of the upper part of the base 1 are also provided with baffle plates, which also play a role in protection.
The magnetic core 2 adopts a ferrite magnetic core, so that the magnetic core 2 has higher magnetic permeability and the working efficiency of the inductor is high. In addition, the first winding 3 and the second winding 4 are formed by copper wires because copper has the advantages of high conductivity, good oxidation resistance and relatively low production cost, and can meet the requirements of the windings on conductivity, stability and reliability.
The household appliance comprises the horizontal filtering common-mode inductor and the circuit board, wherein the horizontal filtering common-mode inductor is the horizontal filtering common-mode inductor in the embodiment, the base 1 of the horizontal filtering common-mode inductor is arranged on the circuit board, and the four PIN PINs 5 of the horizontal filtering common-mode inductor are respectively supported and arranged on the circuit board, so that firm installation of the inductor is ensured.
In the above-mentioned exemplary embodiment, horizontal filtering common mode inductance comprises base, magnetic core, first winding and second winding, is equipped with first rib and second rib on the base, and the setting of first rib makes common mode inductance need not insulating picture peg and can realize the insulating isolation of two windings, has increased two winding insulation withstand voltage and creepage distance, and the setting of second rib makes the inductance surface level and smooth no crooked, and common mode inductance coupling interference is low, has increased the filter effect, can restrain more than 10MHz frequency filtering inductance.
The operation of one embodiment of the horizontal filtering common mode inductor of the present utility model is described below with reference to fig. 1 to 6:
copper wires are wound on the magnetic core 2 to form two coil windings which are oppositely distributed on the magnetic core 2, namely a first winding 3 and a second winding 4. The magnetic core 2 is placed on the second rib 12 on the base 1, and at this time, the first rib 11 is located in the hollow space of the annular structure of the magnetic core 2 and is located between the first winding 3 and the second winding 4. The ends of the second winding 4 and the first winding 3 respectively pass through four through holes 13 to be connected with four PIN feet 5. Finally, the four PIN feet 5 are respectively supported and installed on the circuit board.
The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.
Claims (10)
1. A horizontal filtering common mode inductor, comprising:
the base is provided with a first rib in the middle;
the magnetic core is of an annular structure and is positioned on the base, so that the first ribs are positioned at the hollow part of the annular structure of the magnetic core;
the first winding is wound on the magnetic core;
the second winding is wound on the magnetic core, and the second winding and the first winding are arranged opposite to each other, so that the first rib is located between the first winding and the second winding.
2. The horizontal filtering common mode inductor according to claim 1, wherein two first ribs are provided, and the interval distance between the two first ribs is adapted to the hollow length of the annular structure of the magnetic core.
3. The horizontal filter common mode inductor of claim 2, further comprising a second rib disposed on the base, the second rib being disposed between the first rib and a side of the base, the second rib being parallel to the side of the base adjacent thereto.
4. The horizontal filter common mode inductor according to claim 3, wherein two second ribs are provided, and two second ribs are disposed opposite to each other.
5. The horizontal filtering common mode inductor according to claim 1, wherein four PIN PINs are arranged at the bottom of the base, and the four PIN PINs are electrically connected with the first winding and the second winding respectively.
6. The horizontal filtering common mode inductor according to claim 5, wherein the base is square, and four PIN PINs are respectively arranged at four corners of the base.
7. The horizontal filtering common mode inductor according to claim 6, wherein four through holes are formed in the base, and the setting positions of the four through holes correspond to the setting positions of the four PIN PINs respectively.
8. The horizontal filtering common mode inductor of claim 1, wherein the magnetic core is a ferrite magnetic core.
9. The horizontal filtering common mode inductance of claim 1, wherein said first winding and said second winding are copper wires.
10. A household appliance comprising the horizontal filter common mode inductor of any one of claims 1-9, and further comprising a circuit board on which a base of the horizontal filter common mode inductor is mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322533664.1U CN220774111U (en) | 2023-09-18 | 2023-09-18 | Horizontal filtering common-mode inductor and household appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322533664.1U CN220774111U (en) | 2023-09-18 | 2023-09-18 | Horizontal filtering common-mode inductor and household appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220774111U true CN220774111U (en) | 2024-04-12 |
Family
ID=90605630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322533664.1U Active CN220774111U (en) | 2023-09-18 | 2023-09-18 | Horizontal filtering common-mode inductor and household appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220774111U (en) |
-
2023
- 2023-09-18 CN CN202322533664.1U patent/CN220774111U/en active Active
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