CN210805466U - Air gap type annular magnetic core limiting and fixing device - Google Patents
Air gap type annular magnetic core limiting and fixing device Download PDFInfo
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- CN210805466U CN210805466U CN201921844950.7U CN201921844950U CN210805466U CN 210805466 U CN210805466 U CN 210805466U CN 201921844950 U CN201921844950 U CN 201921844950U CN 210805466 U CN210805466 U CN 210805466U
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Abstract
The utility model relates to a basic electric elements technical field especially relates to an air gap formula annular is spacing fixing device for magnetic core: comprises a shell and a base; the shell comprises a shell lower cover and a shell upper cover, an inner bulge buckled with the groove of the air gap type annular magnetic core correspondingly is arranged on the inner lower side of the shell lower cover, a middle bulge is arranged on the outer upper side of the shell lower cover, and two outer wing bulges are arranged on the outer side of the shell lower cover; the outer side of the upper cover of the shell is provided with a middle bulge and two outer wing bulges which are vertically symmetrical with the lower cover structure of the shell; the base is provided with a rectangular groove, and the lower shell cover and the upper shell cover are spliced in the middle of the protrusion and then inserted into the rectangular groove to enable the shell to be connected with the base. By adopting the limiting and fixing device for the air gap type annular magnetic core, the assembly is convenient, and the assembly efficiency is effectively improved; the winding area can be limited by the arrangement of the outer wing protrusions, so that the air gap of the magnetic core is avoided, and excessive heating of the product is avoided; the air gap type annular magnetic core can be positioned, and the magnetic core is prevented from being inclined.
Description
Technical Field
The utility model relates to a basic electric elements technical field especially relates to an air gap formula annular is spacing fixing device for magnetic core.
Background
The inductor generally comprises a magnetic core and a coil winding, the annular magnetic core inductor is one of the commonly used components in an electronic circuit, and the annular magnetic core inductor has the characteristics of high magnetic permeability, stable product performance and the like, is widely applied to the fields of communication equipment and instruments, and is also commonly applied to outdoor communication equipment.
The coil winding of the existing annular inductor is an enameled copper wire winding with a circular cross section, an annular air gap magnetic core is arranged, after a shell is installed, the air gap position is difficult to determine, and after the magnetic core is wound, an enameled wire cuts a magnetic field, so that the air gap is seriously heated, and the use of the magnetic core inductor is influenced.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect that prior art exists, the utility model provides a novel air gap formula is spacing fixing device for annular magnetic core.
The utility model discloses an adopt following technical scheme to realize:
a limit fixing device for an air gap type annular magnetic core comprises a shell and a base;
the shell comprises a shell lower cover and a shell upper cover, and the shell lower cover and the shell upper cover are both circular cylinders with one closed side and the other open side;
an inner bulge buckled with the groove of the air gap type annular magnetic core correspondingly is arranged on the lower side of the inner part of the lower cover of the shell, a middle bulge is arranged on the upper side of the outer part of the lower cover of the shell, the middle bulge and the inner bulge are positioned on the same circumferential position of the lower cover of the shell, and two outer wing bulges which are symmetrical left and right relative to the middle bulge are arranged on the outer side of the lower cover of the shell;
the outer side of the upper cover of the shell is provided with a middle bulge and two outer wing bulges which are vertically symmetrical with the lower cover structure of the shell;
the base is provided with a rectangular groove, and the lower shell cover and the upper shell cover are spliced in the middle of the protrusion and then inserted into the rectangular groove to enable the shell to be connected with the base.
Further, the base is provided with two stepped bosses which are bilaterally symmetrical, the stepped bosses respectively comprise a high step and a low step, the high step and the low step are two-stage steps which are distributed in a high-low mode, and the outer wing of the lower shell cover and the outer wing of the upper shell cover are connected in a protruding mode and then fastened to the outer parts of the high steps of the two stepped bosses.
Further, the two stepped bosses have a space inside.
Furthermore, the front part and the rear part of the internal interval of the two stepped bosses are respectively provided with a limiting bulge, and the limiting bulges and the inner side surfaces of the stepped bosses form a rectangular groove of the base.
Furthermore, the upper surface of the high step is provided with arc surfaces which are inclined towards the inner parts of the two stepped bosses at intervals.
Further, the width of the spliced outer wing protrusions of the lower shell cover and the upper shell cover is the same as the distance between the front inner side face and the rear inner side face of the low step of the stepped boss.
Furthermore, the inner parts of the lower shell cover and the upper shell cover are respectively provided with annular convex pieces which are correspondingly buckled with each other.
The utility model has the advantages that: by adopting the limiting and fixing device for the air gap type annular magnetic core, the assembly is convenient, and the assembly efficiency is effectively improved; the winding area can be limited by the arrangement of the outer wing protrusions, so that the air gap of the magnetic core is avoided, and excessive heating of the product is avoided; the air gap type annular magnetic core can be positioned, and the magnetic core is prevented from being inclined.
Drawings
Fig. 1 is a schematic structural view of a front view of the present invention.
Fig. 2 is a schematic structural diagram of the lower cover of the housing of the present invention.
Fig. 3 is a schematic structural diagram of a top view of the lower cover of the housing of the present invention.
Fig. 4 is a schematic view of the sectional structure a-a of fig. 3.
Fig. 5 is a schematic view of a sectional structure B-B of fig. 3.
Fig. 6 is a schematic structural diagram of the upper cover of the housing of the present invention.
Fig. 7 is a schematic structural diagram of a top view of the housing upper cover of the present invention.
Fig. 8 is a schematic view of the sectional structure a-a of fig. 7.
Fig. 9 is a schematic structural diagram of a front view of the lower housing cover and the upper housing cover of the present invention.
Fig. 10 is a schematic structural view of the base of the present invention.
Fig. 11 is a schematic structural diagram of a top view of the base of the present invention.
Fig. 12 is a schematic view of the sectional structure a-a of fig. 11.
Fig. 13 is a schematic view of a sectional structure B-B of fig. 11.
In the figure:
1. a lower cover of the housing; 2. an upper cover of the shell; 11. an inner protrusion; 12. a middle bulge; 13. an outer wing projection; 14. an annular tab; 3. a base; 31. a rectangular groove; 32. a stepped boss; 33. and a limiting bulge.
Detailed Description
In order to make the purpose and technical solution of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 13, the utility model discloses a spacing fixing device for air gap type annular magnetic core, including shell and base 3.
The shell comprises a shell lower cover 1 and a shell upper cover 2, wherein the shell lower cover 1 and the shell upper cover 2 are circular cylinders with one closed side and the other open side.
The air gap position of the air gap type annular magnetic core is provided with a groove, and the lower side of the inside of the shell lower cover 1 is provided with an inner bulge 11 correspondingly buckled with the groove of the air gap type annular magnetic core and used for fixing the air gap position of the air gap type annular magnetic core.
The outside upside of shell lower cover 1 is provided with middle arch 12, and middle arch 12 is located the same circumference position of shell lower cover 1 with inside arch 11, is convenient for confirm the air gap position, avoids the wire winding.
Two outer wing bulges 13 which are bilaterally symmetrical relative to the middle bulge 12 are arranged on the outer side of the lower cover 1 of the shell; the outer side of the upper cover 2 of the shell is provided with a middle bulge 12 and two outer wing bulges 13 which have the same structure as the lower cover 1 of the shell and are symmetrical up and down; the winding area is limited in the setting of accessible outer wing arch 13, avoids the magnetic core air gap, avoids the product excessively to generate heat.
The base 3 is provided with a rectangular groove 31, and the middle bulges 12 of the lower cover 1 and the upper cover 2 of the shell are spliced and then inserted into the rectangular groove 31 to connect the shell with the base 3, so that an air gap position is arranged at the joint of the bottom of the shell and the base 3, the air gap position is determined, and winding is avoided.
The two stepped bosses 32 are spaced apart from each other, the front and rear parts of the inner space are respectively provided with a limiting protrusion 33, and the limiting protrusion 33 and the inner side surface of the stepped boss 32 form a rectangular groove 31 of the base 3.
The upper surface of the high step has an arc surface inclined to the inner parts of the two stepped bosses 32 at intervals, preferably an arc having the same radius as the outer shell of the annular magnetic core, so that the base and the outer shell of the air-gap annular magnetic core are correspondingly supported.
The width after the outer wing protrusions 13 of the lower shell cover 1 and the upper shell cover 2 are spliced is the same as the distance between the front side face and the rear side face of the low step of the stepped boss 32, so that the front displacement and the rear displacement are avoided when the shell is connected with the base 3.
The inner parts of the shell lower cover 1 and the shell upper cover 2 are respectively provided with annular protruding pieces 14 which are correspondingly buckled with each other and used for fastening after the air gap type annular magnetic cores are placed on the shell lower cover 1 and the shell upper cover 2.
The utility model discloses a use as follows: the groove of the air gap type annular magnetic core is correspondingly buckled into the inner bulge 11 of the shell lower cover 1, then the shell lower cover 1 and the shell upper cover 2 are buckled tightly through the corresponding annular convex pieces 14, the middle bulge 12 and the outer wing bulge 13 of the shell lower cover 1 and the shell upper cover 2 are correspondingly spliced respectively, the middle bulge 12 is inserted into the rectangular groove 31 after being spliced, meanwhile, the spliced outer wing bulge 13 is buckled tightly outside the high steps of the two stepped bosses 32 of the base 3, so that the shell is stably connected with the base 3, and therefore, the air gap position can be avoided for coil winding.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the present invention, and all equivalent modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (7)
1. A spacing fixing device for an air gap type annular magnetic core is characterized by comprising a shell and a base (3);
the shell comprises a shell lower cover (1) and a shell upper cover (2), and the shell lower cover (1) and the shell upper cover (2) are circular cylinders with one closed side and the other open side;
an inner bulge (11) buckled with the groove of the air gap type annular magnetic core correspondingly is arranged on the lower side of the inner part of the lower shell cover (1), a middle bulge (12) is arranged on the upper side of the outer part of the lower shell cover (1), the middle bulge (12) and the inner bulge (11) are positioned on the same circumferential position of the lower shell cover (1), and two outer wing bulges (13) which are bilaterally symmetrical relative to the middle bulge (12) are arranged on the outer side of the lower shell cover (1);
the outer side of the upper cover (2) of the shell is provided with a middle bulge (12) and two outer wing bulges (13) which are symmetrical up and down with the lower cover (1) of the shell in structure;
the base (3) is provided with a rectangular groove (31), and the middle bulges (12) of the lower shell cover (1) and the upper shell cover (2) are spliced and then inserted into the rectangular groove (31) to connect the shell with the base (3).
2. The air gap type annular magnetic core limiting and fixing device according to claim 1, wherein the base (3) is provided with two step-shaped bosses (32) which are bilaterally symmetrical, the step-shaped bosses (32) respectively comprise a high step and a low step, the high step and the low step are two-stage steps with high and low distribution, and the outer wing protrusions (13) of the lower shell cover (1) and the upper shell cover (2) are spliced and then fastened to the outer parts of the high steps of the two step-shaped bosses (32).
3. Spacing fixture for air-gap toroidal cores according to claim 2, wherein said two stepped bosses (32) have a spacing inside.
4. The limiting and fixing device for the air-gap type annular magnetic core according to claim 3, wherein the inner space of the two stepped bosses (32) is provided with a limiting protrusion (33) at the front and at the back, and the limiting protrusion (33) and the inner side surface of the stepped boss (32) form a rectangular groove (31) of the base (3).
5. The spacing fixing device for an air-gap type annular magnetic core according to claim 2, wherein the upper surface of the high step has an arc surface inclined to the inside of the two stepped bosses (32) at intervals.
6. The spacing fixing device for the air-gap type annular magnetic core according to claim 2, wherein the width of the spliced outer wing protrusions (13) of the lower shell cover (1) and the upper shell cover (2) is the same as the distance between the front inner side and the rear inner side of the lower step of the stepped boss (32).
7. The spacing fixing device for the air-gap type annular magnetic core according to claim 1, wherein the lower housing cover (1) and the upper housing cover (2) are respectively provided with annular protruding pieces (14) which are correspondingly buckled with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921844950.7U CN210805466U (en) | 2019-10-30 | 2019-10-30 | Air gap type annular magnetic core limiting and fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921844950.7U CN210805466U (en) | 2019-10-30 | 2019-10-30 | Air gap type annular magnetic core limiting and fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210805466U true CN210805466U (en) | 2020-06-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921844950.7U Active CN210805466U (en) | 2019-10-30 | 2019-10-30 | Air gap type annular magnetic core limiting and fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210805466U (en) |
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2019
- 2019-10-30 CN CN201921844950.7U patent/CN210805466U/en active Active
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