CN217157905U - Common mode inductor with easily fixed magnetic core - Google Patents
Common mode inductor with easily fixed magnetic core Download PDFInfo
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- CN217157905U CN217157905U CN202121101070.8U CN202121101070U CN217157905U CN 217157905 U CN217157905 U CN 217157905U CN 202121101070 U CN202121101070 U CN 202121101070U CN 217157905 U CN217157905 U CN 217157905U
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Abstract
The utility model provides an easy fixed common mode inductance of magnetic core, it includes casing, magnetic core, coil, four PIN feet and buckle. The shell is provided with an accommodating groove, and the magnetic core is of an annular structure and is positioned in the accommodating groove. The coil includes first coil and second coil, all twines on the magnetic core. The first terminal and the second terminal of the first coil, and the third terminal and the fourth terminal of the second coil are respectively fixed on the four PIN PINs. The buckle sets up in the holding tank, including joint portion and fixed part. The clamping portion is of an elastic structure, and the diameter size of one end, close to the fixing portion, of the clamping portion is larger than the size of one end, far away from the fixing portion, of the clamping portion. The magnetic core embolias from the one end of keeping away from the fixed part of joint portion to by the spacing joint of the one end of the fixed part that is close to of joint portion on the fixed part, thereby the magnetic core is fixed in the holding tank in the location. The utility model discloses an easy fixed common mode inductance of magnetic core, its magnetic core fixed mounting's simple process, and the magnetic core is fixed stable.
Description
Technical Field
The utility model relates to a common mode inductance technical field, in particular to easy fixed common mode inductance of magnetic core.
Background
Common mode inductor (Common mode Choke), also called Common mode Choke, mainly plays a role of filtering, so as to suppress Common mode interference signals in electromagnetic interference, and is commonly used in a switching power supply of a computer. In the design of the board card, the common-mode inductor also plays a role in EMI filtering and is used for inhibiting electromagnetic waves generated by the high-speed signal line from radiating and emitting outwards. In the common mode inductor in the prior art, the fixing and mounting process of the magnetic core is complex and the fixing is unstable.
Therefore, it is necessary to provide a common mode inductor with an easily fixed core to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides an easy fixed common mode inductance of magnetic core, its winding have the magnetic core of first coil and second coil, embolia from the one end of keeping away from the fixed part of joint portion to by the spacing joint of the one end of being close to the fixed part of joint portion on the fixed part, thereby the magnetic core location is fixed in the holding tank, with the common mode inductance of solving among the prior art, the fixed mounting technology of its magnetic core is complicated, and fixed unstable technical problem.
In order to solve the technical problem, the utility model adopts the technical scheme that:
a common mode inductor with an easily fixable magnetic core, comprising:
a housing having an accommodating groove;
the magnetic core is of an annular structure and is arranged in the accommodating groove;
the coil comprises a first coil and a second coil, the first coil and the second coil are wound on the magnetic core, two ends of the first coil are respectively a first terminal and a second terminal, and two ends of the second coil are respectively a third terminal and a fourth terminal;
the first terminal, the second terminal, the third terminal and the fourth terminal are respectively fixed on the four PIN PINs; and the number of the first and second groups,
the clamping buckle is arranged in the accommodating groove and comprises a clamping part and a fixing part, the fixing part is fixed to the bottom of the accommodating groove, the clamping part is of an elastic structure, the diameter size of the clamping part close to one end of the fixing part is larger than the size of the fixing part far away from one end of the fixing part, the magnetic core is sleeved in the end, far away from the fixing part, of the clamping part and is clamped on the fixing part in a limiting mode through the end, close to the fixing part, of the clamping part, and the magnetic core is fixed in the accommodating groove in a positioning mode.
The easy fixed common mode inductance of magnetic core in, the magnetic core is ring circular structure, joint portion is coniform, joint portion is close to the diameter size of the one end of fixed part is greater than the internal diameter size of magnetic core, and is less than the external diameter size of magnetic core.
In the easy fixed common mode inductance of magnetic core, the length of fixed part equals magnetic core axial thickness.
The easy fixed common mode inductance of magnetic core in, first coil with the winding of second coil single turn is in on the magnetic core, integrated into one piece is provided with two spacing archs, two on the magnetic core spacing protruding in the surface of magnetic core, two spacing arch is used for the separation first coil with the second coil.
In the easy fixed common mode inductance of magnetic core, two spacing protruding symmetry set up in the outside of magnetic core is on the surface, be provided with two spouts, two on the inside wall of holding tank spacing protruding difference slidable mounting is two in the spout.
In the easy fixed common mode inductance of magnetic core, two spacing protruding symmetry set up in the inboard of magnetic core is surperficial on.
In the easy fixed common mode inductance of magnetic core, two spacing protruding symmetry set up in on the upper end plane of magnetic core.
In the easy fixed common mode inductance of magnetic core, four the PIN foot all sets up to the L type, is used for preventing first terminal the second terminal the third terminal with fourth terminal twines respectively four break away from with it when the PIN foot is gone up.
In the easy fixed common mode inductance of magnetic core, four the PIN foot all to the centrifugal direction of casing is crooked.
The easy fixed common mode inductance of magnetic core in, the casing sets up to square structure, the holding tank set up to with the circular structure that the magnetic core matches, four the PIN foot sets up on four angles of casing, and with the top of holding tank is located same one side.
The utility model discloses compare in prior art, its beneficial effect is: the utility model discloses an easy fixed common mode inductance of magnetic core, its winding have the magnetic core of first coil and second coil, embolia from the one end of keeping away from the fixed part of joint portion to by the spacing joint of the one end of being close to the fixed part of joint portion on the fixed part, thereby the magnetic core location is fixed in the holding tank. The process for fixedly installing the magnetic core is simple, and the magnetic core is fixed and stable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments are briefly introduced below, and the drawings in the following description are only corresponding drawings of some embodiments of the present invention.
Fig. 1 is a schematic view of the top view structure of the common mode inductor with the easily fixed magnetic core according to the present invention.
Fig. 2 is the utility model discloses an easy fixed common mode inductance's of magnetic core side structure schematic diagram.
Fig. 3 is a schematic side view of the casing of the common mode inductor with the easily fixed magnetic core according to the present invention.
Fig. 4 is a schematic top view of the magnetic core of the common mode inductor with the magnetic core easily fixed according to the present invention.
Fig. 5 is a schematic top view of another magnetic core of the common mode inductor with an easily fixed magnetic core according to the present invention.
Fig. 6 is a schematic top view of another magnetic core of the common mode inductor with an easily fixed magnetic core according to the present invention.
Wherein the content of the first and second substances,
the labels of FIGS. 1-4 are as follows:
11. a shell body, a 111, a containing groove, a 112, a sliding groove,
12. a magnetic core, 121, a limit bulge,
13. the number of the coils is such that,
131. a first coil, 1311, a first terminal, 1312, a second terminal,
132. a second coil, 1321, a third terminal, 1322, a fourth terminal,
14. a PIN foot is arranged on the base plate,
15. buckle 151, joint portion, 152, fixed part.
The labels of FIG. 5 are as follows:
21. magnetic core, 211, spacing arch.
The labels of FIG. 6 are as follows:
31. magnetic core 311, limit protrusion.
In the drawings, elements having similar structures are denoted by the same reference numerals.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
In the present invention, the directional terms, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom", refer to the orientation of the drawings, and the directional terms are used for illustration and understanding, but not for limiting the present invention.
The terms "first," "second," and the like in the terms of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, nor should they be construed as limiting in any way.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the common mode inductor in the prior art, the fixing and mounting process of the magnetic core is complex and the fixing is unstable.
The present invention provides a preferred embodiment of a common mode inductor with an easily fixed magnetic core, which can solve the above technical problems.
Referring to fig. 1, fig. 3 and fig. 4, the present invention provides a common mode inductor with an easily fixed magnetic core, which includes a housing 11, a magnetic core 12, a coil 13, four PIN PINs 14 and a buckle 15. The housing 11 has a receiving groove 111, and the magnetic core 12 is in a ring structure and disposed in the receiving groove 111. The coil 13 includes a first coil 131 and a second coil 132, and both the first coil 131 and the second coil 132 are wound around the core 12. The first coil 131 has a first terminal 1311 and a second terminal 1312 at its two ends, respectively, and the second coil 132 has a third terminal 1321 and a fourth terminal 1322 at its two ends, respectively. The first terminal 1311, the second terminal 1312, the third terminal 1321, and the fourth terminal 1322 are fixed to the four PIN PINs 14, respectively. The clip 15 is disposed in the receiving groove 111, and the clip 15 includes a clip portion 151 and a fixing portion 152. The fixing portion 152 is fixed at the bottom of the accommodating groove 111, the clamping portion 151 is of an elastic structure, and the diameter of one end of the clamping portion 151 close to the fixing portion 152 is larger than that of one end far away from the fixing portion 152. The magnetic core 12 is sleeved from the end of the clamping portion 151 far away from the fixing portion 152, and is clamped on the fixing portion 152 by the end of the clamping portion 151 close to the fixing portion 152, so that the magnetic core 12 is fixed in the accommodating groove 111 in a positioning manner.
The utility model discloses an easy fixed common mode inductance of magnetic core, its winding have the magnetic core 12 of first coil 131 and second coil 132, embolia from the one end of keeping away from fixed part 152 of joint portion 151 to by the spacing joint of the one end that is close to fixed part 152 of joint portion 151 on fixed part 152, thereby magnetic core 12 location is fixed in holding tank 111. The process for fixing and installing the magnetic core 12 is simple, and the magnetic core 12 is fixed and stable.
Please refer to fig. 2 and fig. 1. The magnetic core 12 is a circular ring structure, the clamping portion 151 is conical, and the diameter of the clamping portion 151 near the fixing portion 152 is larger than the inner diameter of the magnetic core 12 and smaller than the outer diameter of the magnetic core 12. Above-mentioned structure for magnetic core 12 easily embolias joint portion 151, and magnetic core 12 is fixed stable.
With reference to fig. 2, the length of the fixing portion 152 is equal to the axial thickness of the magnetic core 12, so that the magnetic core 12 can be prevented from moving along the length of the fixing portion 152, and the magnetic core 12 can be fixed more stably.
Please refer to fig. 1, and also refer to fig. 4. The first coil 131 and the second coil 132 are wound on the magnetic core 12 in a single turn, and two limiting protrusions 121 are integrally formed on the magnetic core 12. Two limiting protrusions 121 protrude from the surface of the core 12, and the two limiting protrusions 121 are used for separating the first coil 131 and the second coil 132. The above structure facilitates the winding of the first coil 131 and the second coil 132 separately on the core 12.
Please refer to fig. 1, and also refer to fig. 4. Two spacing archs 121 symmetry set up on the outside surface of magnetic core 12, are provided with two spout 112 on the inside wall of holding tank 111, and two spacing archs 121 are slidable mounting respectively in two spout 112. In the above-mentioned structure, two spacing archs 121 and two spout 112 cooperations fix magnetic core 12 in the holding tank 111, and magnetic core 12 is fixed more stably.
Referring to fig. 5, the two limiting protrusions 121 may also be symmetrically disposed on the inner surface of the core 12, which is compact and facilitates the small-size design of the common mode inductor.
Referring to fig. 6, the two limiting protrusions 121 may also be symmetrically disposed on the upper end plane of the magnetic core 12, which facilitates the processing and production of the magnetic core 12.
Please refer to fig. 3, and also refer to fig. 1. The four PIN legs 14 are each provided in an L-shape for preventing the first terminal 1311, the second terminal 1312, the third terminal 1321 and the fourth terminal 1322 from being separated therefrom when wound around the four PIN legs 14, respectively. The above structure makes it more convenient and time-saving to wind the first terminal 1311, the second terminal 1312, the third terminal 1321 and the fourth terminal 1322 around the four PIN legs 14.
Please continue to refer to fig. 3, and please refer to fig. 1. The four PIN legs 14 are each bent in the centrifugal direction of the housing 11, and the structure is such that the four PIN legs 14 do not form a barrier to the core 12 and the coil 13.
Referring to fig. 1, the housing 11 is a square structure, the receiving groove 111 is a circular structure matching with the magnetic core 12, and the four PIN PINs 14 are disposed at four corners of the housing 11 and located at the same side as the top of the receiving groove 111. The above structure makes it convenient and stable to wind the first terminal 1311, the second terminal 1312, the third terminal 1321 and the fourth terminal 1322 around the four PIN legs 14.
The utility model discloses an easy fixed common mode inductance's of magnetic core assembling process:
first, the first coil 131 and the second coil 132 are wound on the core 12;
then, the magnetic core 12 is sleeved from the end of the clamping portion 151 far away from the fixing portion 152, and is clamped on the fixing portion 152 in a limiting manner by the end of the clamping portion 151 close to the fixing portion 152, so that the magnetic core 12 is positioned and fixed in the accommodating groove 111;
finally, the first terminal 1311 and the second terminal 1312 of the first coil 131, and the third terminal 1321 and the fourth terminal 1322 of the second coil 132 are soldered to the four PIN legs 14, respectively.
This completes the assembly process of the common mode inductor with easily fixed magnetic core of the preferred embodiment.
The utility model discloses an easy fixed common mode inductance of magnetic core, its winding have the magnetic core 12 of first coil 131 and second coil 132, embolia from the one end of keeping away from fixed part 152 of joint portion 151 to by the spacing joint of the one end that is close to fixed part 152 of joint portion 151 on fixed part 152, thereby magnetic core 12 location is fixed in holding tank 111. The process for fixing and installing the magnetic core 12 is simple, and the magnetic core 12 is fixed and stable.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention shall be determined by the scope of the appended claims.
Claims (10)
1. A common mode inductor with an easily fixed magnetic core is characterized by comprising:
a housing having an accommodating groove;
the magnetic core is of an annular structure and is arranged in the accommodating groove;
the coil comprises a first coil and a second coil, the first coil and the second coil are wound on the magnetic core, two ends of the first coil are respectively a first terminal and a second terminal, and two ends of the second coil are respectively a third terminal and a fourth terminal;
the first terminal, the second terminal, the third terminal and the fourth terminal are respectively fixed on the four PIN PINs; and the number of the first and second groups,
the clamping buckle is arranged in the accommodating groove and comprises a clamping part and a fixing part, the fixing part is fixed to the bottom of the accommodating groove, the clamping part is of an elastic structure, the diameter size of the clamping part close to one end of the fixing part is larger than the size of the fixing part far away from one end of the fixing part, the magnetic core is sleeved in the end, far away from the fixing part, of the clamping part and is clamped on the fixing part in a limiting mode through the end, close to the fixing part, of the clamping part, and the magnetic core is fixed in the accommodating groove in a positioning mode.
2. The common mode inductor with the easily fixed magnetic core according to claim 1, wherein the magnetic core is of a circular ring structure, the clamping portion is conical, and the diameter of one end of the clamping portion, which is close to the fixing portion, is larger than the inner diameter of the magnetic core and smaller than the outer diameter of the magnetic core.
3. The core-easy-to-fix common mode inductor according to claim 1, wherein the length of the fixing portion is equal to the thickness of the core in the axial direction.
4. The common mode inductor with the easily fixed magnetic core according to claim 1, wherein the first coil and the second coil are wound on the magnetic core in a single turn, and two limiting protrusions are integrally formed on the magnetic core and protrude from the surface of the magnetic core, and the two limiting protrusions are used for separating the first coil from the second coil.
5. A common-mode inductor with an easily fixed magnetic core according to claim 4, wherein two limiting protrusions are symmetrically disposed on the outer surface of the magnetic core, two sliding grooves are disposed on the inner side wall of the accommodating groove, and the two limiting protrusions are slidably mounted in the two sliding grooves respectively.
6. A common-mode inductor with easily fixed magnetic core as claimed in claim 4, wherein two said limiting protrusions are symmetrically disposed on the inner surface of the magnetic core.
7. A common-mode inductor with easily fixed magnetic core as claimed in claim 4, wherein two said limiting protrusions are symmetrically disposed on the upper plane of the magnetic core.
8. The common mode inductor with easily fixed magnetic core according to claim 1, wherein each of the four PIN legs is provided with an L-shape for preventing the first terminal, the second terminal, the third terminal and the fourth terminal from being separated from the four PIN legs when being wound around the four PIN legs.
9. A common-mode inductor with easily fixable magnetic core according to claim 8, characterised in that four of said PIN legs are each bent towards the centrifugal direction of said housing.
10. The common mode inductor with easily fixed magnetic core as claimed in claim 8, wherein the housing is configured as a square structure, the receiving slot is configured as a circular structure matching with the magnetic core, and four of the PIN legs are disposed at four corners of the housing and located at the same side as the top of the receiving slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121101070.8U CN217157905U (en) | 2021-05-21 | 2021-05-21 | Common mode inductor with easily fixed magnetic core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121101070.8U CN217157905U (en) | 2021-05-21 | 2021-05-21 | Common mode inductor with easily fixed magnetic core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217157905U true CN217157905U (en) | 2022-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121101070.8U Active CN217157905U (en) | 2021-05-21 | 2021-05-21 | Common mode inductor with easily fixed magnetic core |
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| Country | Link |
|---|---|
| CN (1) | CN217157905U (en) |
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2021
- 2021-05-21 CN CN202121101070.8U patent/CN217157905U/en active Active
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