Magnetic core shell

Abstract

The utility model relates to the technical field of inductor elements, and provides a magnetic core shell, an annular installation cavity is arranged in the magnetic core shell, the annular installation cavity is used for containing a magnetic core, an abutting portion is arranged on the cavity wall of the annular installation cavity, and the abutting portion is used for abutting against the inner peripheral wall and / or the outer peripheral wall of the magnetic core so as to fix the magnetic core. According to the magnetic core shell disclosed by the utility model, the magnetic core is mounted by arranging the annular mounting cavity, and an insulating function is realized between the magnetic core and the winding wire. Meanwhile, the abutting part is arranged in the annular mounting cavity to abut against the peripheral wall of at least one side of the magnetic core, so that the magnetic core is limited and fixed in the annular mounting cavity, noise caused by shaking and bumping of the magnetic core is prevented, dispensing in the mounting process is not needed, the mounting efficiency is improved, and the cost is reduced. And the problem that noise is generated due to the fact that the magnetic core shakes and collides in the shell after the shell is installed can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of inductor components, in particular to a magnetic core shell. Background Art

[0002] In existing technology, to enhance insulation between the core and the windings, a casing is typically added to the core, and the windings are then wound around it. Due to tolerances between the core and the casing, a gap is left between them to ensure they fit together. This requires applying glue inside the casing to secure the core, which is inefficient. During large-scale production, glue leaks can also cause the core to loosen, leading to serious noise issues throughout the entire machine. Utility Model Content

[0003] The utility model provides a magnetic core shell, which is used to solve the defects in the prior art that glue needs to be dispensed when installing the shell on the magnetic core, which affects the working efficiency and is prone to glue leakage, causing the magnetic core to shake and generate noise.

[0004] The utility model provides a magnetic core shell.

[0005] An annular mounting cavity is provided in the magnetic core housing, and the annular mounting cavity is used to accommodate the magnetic core. An abutment portion is provided on the cavity wall of the annular mounting cavity, and the abutment portion is used to abut against the inner circumferential wall and / or outer circumferential wall of the magnetic core to fix the magnetic core.

[0006] According to the magnetic core shell of the utility model,

[0007] There are multiple abutting portions, and the multiple abutting portions are arranged around the inner ring cavity wall and / or the outer ring cavity wall of the annular installation cavity at intervals.

[0008] According to the magnetic core housing of the present invention, the number of the abutting portions on the inner ring cavity wall of the annular mounting cavity is greater than or equal to three;

[0009] And / or, the number of the abutting portions on the outer ring cavity wall of the annular mounting cavity is greater than or equal to three.

[0010] According to the magnetic core shell of the present invention, there are three abutting parts, which are arranged around the inner ring wall of the annular installation cavity, and the angle between two adjacent abutting parts and the perpendicular line to the central axis of the annular installation cavity is 120°.

[0011] According to the magnetic core shell of the present invention, the abutment portion is located at the first end of the annular mounting cavity, and the abutment portion is used to abut against one side of the magnetic core and is in the form of an inclined surface. The inclined surface gradually inclines from the first end to the second end of the annular mounting cavity toward the direction of the cavity wall where the abutment portion is located.

[0012] The magnetic core housing according to the utility model comprises:

[0013] a first shell and a second shell, wherein the first shell is provided with a first groove body, the second shell is provided with a second groove body, and the first shell and the second shell are butted together to form the annular installation cavity;

[0014] The abutting portion is disposed in the first slot body and / or the second slot body.

[0015] According to the magnetic core housing of the present invention, one of the first shell and the second shell is provided with a protrusion, and the other shell is provided with a plug-in slot corresponding to the protrusion;

[0016] When the first shell and the second shell are docked, the protrusion is inserted into the insertion groove.

[0017] According to the magnetic core housing of the present invention, the first shell is provided with a protrusion and a plug-in slot; the second shell is provided with the plug-in slot corresponding to the protrusion of the first shell, and the protrusion is provided corresponding to the plug-in slot of the first shell;

[0018] When the first shell and the second shell are docked, the protrusion of the first shell is inserted into the corresponding insertion groove of the second shell, and the protrusion of the second shell is inserted into the corresponding insertion groove of the first shell.

[0019] According to the magnetic core shell of the present utility model, the magnetic core shell is annular, and a first partition plate and a second partition plate are protruded on the outer wall of the magnetic core shell;

[0020] The first partition plate and the second partition plate are arranged on the magnetic core housing at intervals along the circumferential direction, and divide the magnetic core housing into a first winding portion and a second winding portion.

[0021] According to the magnetic core housing of the present invention, there are two first partitions and two second partitions;

[0022] The two first partitions are arranged in parallel and at intervals on the magnetic core housing, and the two second partitions are arranged in parallel and at intervals on the magnetic core housing.

[0023] The magnetic core housing of this utility model is provided with an annular mounting cavity for mounting the magnetic core and providing insulation between the magnetic core and the winding. Furthermore, an abutment portion is provided within the annular mounting cavity to abut at least one side of the peripheral wall of the magnetic core, thereby securing the magnetic core within the annular mounting cavity and preventing the core from shaking or bumping, which would otherwise cause noise. This eliminates the need for glue during installation, improves installation efficiency, and effectively solves the problem of the magnetic core shaking and bumping within the housing after installation, which would cause noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is one of the schematic diagrams of the first shell provided in an embodiment of the present utility model.

[0026] Figure 2 It is a top view of the first shell provided by an embodiment of the present utility model.

[0027] Figure 3 This is one of the side views of the first shell provided by an embodiment of the present utility model.

[0028] Figure 4 This is the second side view of the first shell provided by the embodiment of the present utility model.

[0029] Figure 5 This is the second schematic diagram of the first shell provided by the embodiment of the present utility model.

[0030] Figure 6 It is a bottom view of the first shell provided by an embodiment of the present utility model.

[0031] Reference numerals:

[0032] 1. First housing; 11. Abutment portion; 12. First slot; 13. Protrusion; 14. Insertion slot; 15. First winding portion; 16. Second winding portion;

[0033] 2. First partition; 3. Second partition. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] The following combination Figures 1-6 The present invention describes a magnetic core shell.

[0036] like Figure 1As shown, the utility model provides a magnetic core shell, in which an annular mounting cavity is provided, the annular mounting cavity is used to accommodate the magnetic core, and an abutment portion 11 is provided on the cavity wall of the annular mounting cavity, the abutment portion 11 is used to abut against the inner circumferential wall and / or outer circumferential wall of the magnetic core to fix the magnetic core.

[0037] In this embodiment, an annular mounting cavity is provided in the magnetic core housing so that the magnetic core can be installed in the annular mounting cavity, and then the coil is wound on the magnetic core housing. It is understandable that the magnetic core housing of this embodiment is an insulating housing that can serve as an insulation function between the coil and the magnetic. It is understandable that the magnetic is usually annular, and the annular shape has an inner circumferential wall and an outer circumferential wall. By providing an abutment portion 11 on the cavity wall of the annular mounting cavity, the abutment portion 11 can abut on the inner circumferential wall and / or the outer circumferential wall of the magnetic core, so as to limit and fix the magnetic core in the annular mounting cavity, and prevent the magnetic core from shaking or bumping in the annular mounting cavity and generating noise.

[0038] It is understandable that the abutment portion 11 can be provided on a side cavity wall close to the inner circumferential wall of the magnetic core to abut the inner circumferential wall of the magnetic core; or, the abutment portion 11 can also be provided on a side cavity wall close to the inner circumferential wall of the magnetic core to abut the outer circumferential wall of the magnetic core; or, the abutment portion 11 can be provided on both side cavity walls close to the inner and outer circumferential walls of the magnetic core at the same time, so as to abut the inner and outer circumferential walls of the magnetic core and clamp the magnetic core.

[0039] The magnetic core housing of the present invention provides an annular mounting cavity for mounting the magnetic core and provides insulation between the magnetic core and the windings. Furthermore, an abutment portion 11 is provided within the annular mounting cavity to abut at least one side of the circumferential wall of the magnetic core, thereby securing the magnetic core within the annular mounting cavity and preventing the core from shaking or bumping, which would otherwise cause noise. This eliminates the need for glue during installation, improves installation efficiency, and effectively addresses the issue of the magnetic core shaking and bumping within the housing after installation, which would otherwise cause noise.

[0040] Alternatively, in some embodiments not shown, the abutment portion 11 may be annular, surrounding the outer or inner circumferential wall of the magnetic core. Alternatively, the abutment portion 11 may abut one or more locations on the outer or inner circumferential wall of the magnetic core, thereby limiting the position of the magnetic core and providing more space for its installation.

[0041] Optionally, in some utility models, such as Figure 1 and Figure 2 As shown, there are multiple abutting portions 11, and the multiple abutting portions 11 are arranged around the inner ring cavity wall and / or the outer ring cavity wall of the annular installation cavity at intervals.

[0042] In this embodiment, a plurality of abutting portions 11 are provided, and the plurality of abutting portions 11 are spaced and arranged around the inner ring cavity wall or the outer ring cavity wall of the annular mounting cavity. The abutting portions 11 of the inner ring cavity wall can abut against different positions of the inner circumferential wall of the magnetic core, and the abutting portions 11 of the outer ring cavity wall can abut against different positions of the outer circumferential wall of the magnetic core. The magnetic core is limited from different positions of the magnetic core, and the limiting effect is better, so as to further prevent the magnetic core from shaking in the annular mounting cavity.

[0043] It is understandable that multiple abutment portions 11 can be arranged only on the inner ring cavity wall of the annular mounting cavity; or, multiple abutment portions 11 can be arranged only on the outer ring cavity wall of the annular mounting cavity; or, multiple abutment portions 11 can be arranged on both the inner ring cavity wall and the outer ring cavity wall of the annular mounting cavity.

[0044] Optionally, in some embodiments, the number of abutment portions 11 on the inner ring cavity wall of the annular mounting cavity is greater than or equal to three.

[0045] In this embodiment, by providing three or more abutment portions 11 on the inner ring cavity wall of the annular mounting cavity, the abutment portions 11 on the inner ring cavity wall can abut against the inner circumferential wall of the magnetic core at more than three different positions, thereby completely limiting the position of the inner circumferential wall of the magnetic core, and further limiting the position of the magnetic core, thereby preventing the magnetic core from shaking radially along the annular mounting cavity.

[0046] Optionally, in some embodiments, the outer ring cavity wall of the annular mounting cavity has three or more abutting portions 11. Similar to the above embodiment, the abutting portions 11 of the outer ring cavity wall can abut against the inner circumferential wall of the magnetic core at more than three different positions, thereby completely defining the position of the outer circumferential wall of the magnetic core, and further defining the position of the magnetic core, thereby preventing the magnetic core from shaking along the radial direction of the annular mounting cavity.

[0047] Preferably, in a specific embodiment, Figure 1 and Figure 2 As shown, there are three abutting portions 11, which are arranged around the inner ring wall of the annular installation cavity, and the angle between the perpendicular line between two adjacent abutting portions 11 and the central axis of the annular installation cavity is 120°.

[0048] In this embodiment, three abutting portions 11 are arranged around the inner wall of the annular mounting cavity. The angle between adjacent abutting portions 11 and the perpendicular line to the central axis of the annular mounting cavity is 120°. That is, the three abutting portions 11 are evenly arranged around the inner wall of the annular mounting cavity. The abutting positions of the three abutting portions 11 and the inner wall of the magnetic core are also evenly arranged around the inner wall of the magnetic core. This makes the force applied to the magnetic core more uniform and improves the positioning and fixing effect of the magnetic core. At the same time, the provision of only three abutting portions 11 can also reduce the installation space occupied in the annular mounting cavity, facilitating the installation of the magnetic core.

[0049] In some embodiments, as Figure 1 As shown, the abutting portion 11 is located at the first end of the annular mounting cavity. The side of the abutting portion 11 used to abut the magnetic core is an inclined surface, and the inclined surface gradually tilts from the first end to the second end of the annular mounting cavity toward the cavity wall where the abutting portion is located.

[0050] In this embodiment, the abutment portion 11 is arranged at the end of the annular mounting cavity to avoid the magnetic core being unable to be fully installed into the annular mounting cavity due to the interference between the dimensional error of the magnetic core or the magnetic core shell and the abutment portion 11 when the magnetic core is installed into the annular mounting cavity. Only when one end of the magnetic core is close to the first end of the annular mounting cavity, the magnetic core abuts against the inclined surface and can continue to move inward along the inclined surface. Finally, after the magnetic core is fully installed into the annular mounting cavity, the inclined surface limits and fixes the magnetic core to prevent the magnetic core from shaking in the radial direction of the annular mounting cavity. Even if the inner hole of the magnetic core changes due to the size error, it can abut against different positions of the inclined surface 11. The structure is simple and easy to install.

[0051] In some embodiments, as Figures 1 to 6 As shown, the magnetic core housing includes: a first shell 1 and a second shell (not shown). The first shell 1 is provided with a first slot 12, and the second shell is provided with a second slot. The first shell 1 and the second shell are butted together to form an annular mounting cavity. The abutment portion 11 is provided in the first slot 12 and / or the second slot.

[0052] In this embodiment, the magnetic core housing is divided into a first housing 1 and a second housing, which are butted together to form a complete annular mounting cavity. The magnetic core is first installed in the first slot 12 of the first housing 1 or the second slot of the second housing, and then the first housing 1 and the second housing are butted together to complete the installation of the magnetic core and the magnetic core housing. This embodiment has a simple structure and is easy to operate. The first slot 12 or the second slot is provided with the abutment portion 11 described in the above embodiment to limit and secure the magnetic core within the annular mounting cavity.

[0053] It is understandable that the first shell 1 and the second shell can be fixed to each other or not after docking. After the core shell is installed, wires will be wound on the core shell to prevent the first shell 1 from separating from the second shell.

[0054] Furthermore, in some embodiments not shown, one of the first shell 1 and the second shell is provided with a protrusion 13, and the other is provided with a plug-in groove 14 corresponding to the protrusion 13. When the first shell 1 and the second shell are docked, the protrusion 13 is plugged into the plug-in groove 14.

[0055] In this embodiment, by respectively providing corresponding protrusions 13 and insertion grooves 14 on the first shell 1 and the second shell, when the first shell 1 and the second shell are docked, the protrusion 13 can be first plugged into the insertion groove 14 so as to align the notches of the first slot body 12 and the second slot body. After the docking is completed, the protrusion 13 and the insertion groove 14 cooperate with each other to limit the first shell 1 and the second shell, preventing the first shell 1 and the second shell from rotating relative to each other, making the entire magnetic core shell more stable and reliable.

[0056] Alternatively, in other embodiments, as Figure 1 As shown, the first housing 1 is provided with a protrusion 13 and an insertion groove 14. The second housing is provided with an insertion groove 14 corresponding to the protrusion 13 of the first housing 1, and a protrusion 13 is provided corresponding to the insertion groove 14 of the first housing 1. When the first housing 1 and the second housing are docked, the protrusion 13 of the first housing 1 is inserted into the corresponding insertion groove 14 of the second housing, and the protrusion 13 of the second housing is inserted into the corresponding insertion groove 14 of the first housing 1.

[0057] In this embodiment, a protrusion 13 and an insertion groove 14 are provided on the first shell 1, and a corresponding protrusion 13 and an insertion groove 14 are also provided on the second shell, so that the protrusion 13 and the insertion groove 14 on the first shell 1 and the second shell can be plugged into and matched with each other, further limiting the mutual position of the first shell 1 and the second shell to prevent relative rotation between the first shell 1 and the second shell, making the magnetic core shell more stable and reliable.

[0058] In some embodiments, as Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, the core housing is annular, and a first partition 2 and a second partition 3 are protruding from the outer wall of the core housing. The first partition 2 and the second partition 3 are arranged at intervals along the circumferential direction on the core housing to separate the core housing into a first winding portion 15 and a second winding portion 16.

[0059] In this embodiment, a first partition 2 and a second partition 3 are provided on the outer wall of the magnetic core housing. The magnetic core housing on one side of the first partition 2 and the second partition 3 forms a first winding portion 15 for winding one coil, while the magnetic core housing on the other side of the first partition 2 and the second partition 3 forms a second winding portion 16 for winding another coil, thereby achieving an inductor function. The first partition 2 and the second partition 3 separate the two coils, preventing them from short-circuiting due to contact.

[0060] Furthermore, in some embodiments, Figure 4 、 Figure 5 and Figure 6As shown, there are two first partitions 2 and two second partitions 3. The two first partitions 2 are arranged in parallel to the magnetic core housing, and the two second partitions 3 are arranged in parallel to the magnetic core housing.

[0061] In this embodiment, two first partitions 2 are provided, and the two first partitions 2 are arranged in parallel and spaced apart on the magnetic core shell, so that a gap is left between the two first partitions 2. Similarly, a gap is also left between the two second partitions 3, so as to further separate the two groups of coils wound on the magnetic core shell and avoid contact between the two groups of coils.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A magnetic core shell, characterized in that: An annular mounting cavity is provided in the magnetic core housing, and the annular mounting cavity is used to accommodate the magnetic core. An abutment portion is provided on the cavity wall of the annular mounting cavity, and the abutment portion is used to abut against the inner circumferential wall and / or outer circumferential wall of the magnetic core to fix the magnetic core.

2. The magnetic core housing according to claim 1, wherein: There are multiple abutting portions, and the multiple abutting portions are arranged around the inner ring cavity wall and / or the outer ring cavity wall of the annular installation cavity at intervals.

3. The magnetic core housing according to claim 2, wherein: The abutment portions on the inner ring cavity wall of the annular mounting cavity are greater than or equal to three; And / or, the number of the abutting portions on the outer ring cavity wall of the annular mounting cavity is greater than or equal to three.

4. The magnetic core housing according to claim 3, characterized in that There are three abutting portions, which are arranged around the inner ring wall of the annular installation cavity, and the angle between two adjacent abutting portions and the perpendicular line to the central axis of the annular installation cavity is 120°.

5. The magnetic core housing according to any one of claims 1 to 4, characterized in that: The abutment portion is located at the first end of the annular mounting cavity. The abutment portion is used to abut against the magnetic core and is an inclined surface. The inclined surface gradually inclines from the first end to the second end of the annular mounting cavity toward the cavity wall where the abutment portion is located.

6. The magnetic core housing according to claim 1, wherein: include: a first shell and a second shell, wherein the first shell is provided with a first groove body, the second shell is provided with a second groove body, and the first shell and the second shell are butted together to form the annular installation cavity; The abutting portion is disposed in the first slot body and / or the second slot body.

7. The magnetic core housing according to claim 6, wherein: One of the first shell and the second shell is provided with a protrusion, and the other shell is provided with an inserting groove corresponding to the protrusion; When the first shell and the second shell are docked, the protrusion is inserted into the insertion groove.

8. The magnetic core housing according to claim 6, wherein: The first shell is provided with a protrusion and a plug-in slot; the second shell is provided with the plug-in slot corresponding to the protrusion of the first shell, and is provided with the protrusion corresponding to the plug-in slot of the first shell; When the first shell and the second shell are docked, the protrusion of the first shell is inserted into the corresponding insertion groove of the second shell, and the protrusion of the second shell is inserted into the corresponding insertion groove of the first shell.

9. The magnetic core housing according to claim 1, wherein: The magnetic core shell is annular, and a first partition plate and a second partition plate are protruded from the outer wall of the magnetic core shell; The first partition plate and the second partition plate are arranged on the magnetic core housing at intervals along the circumferential direction, and divide the magnetic core housing into a first winding portion and a second winding portion.

10. The magnetic core housing according to claim 9, characterized in that There are two of each of the first partition and the second partition; The two first partitions are arranged in parallel and at intervals on the magnetic core housing, and the two second partitions are arranged in parallel and at intervals on the magnetic core housing.

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