Magnetic core seat and inductor

Abstract

The utility model provides a magnetic core seat and an inductor, and relates to the technical field of inductor manufacturing. The magnetic core seat can comprise a base and a middle column, the base comprises a bottom wall and a side wall connected with the periphery of the bottom wall, and the bottom wall and the side wall form a containing space with an opening. The middle column is located in the containing space, connected with the bottom wall in the middle of the bottom wall and extends towards the opening from the bottom wall. Wherein the side wall is higher than the middle column, and the section size of at least part of the position, higher than the middle column, of the side wall is smaller than the section size of other parts. At least part of the side wall of the magnetic core seat, which is higher than the middle column, is manufactured to be smaller than other parts in size, so that the top is convenient to crush, and the manufacturing speed of the inductor is improved. Meanwhile, the lower part of the side wall is prevented from collapsing due to pressing, so that the quality of the inductor is relatively poor.

Description

Technical Field

[0001] The utility model relates to the technical field of inductor manufacturing, in particular to a magnetic core seat and an inductor. Background Art

[0002] In the process of making inductors, the coil is generally placed in a magnetic core seat, and then the internal space is filled with magnetic powder and pressed to form an inductor. In some other technologies, the coil is placed in a special magnetic core seat and directly pressed, causing the magnetic core seat to collapse into the internal space to obtain an inductor. This method makes the process of making the inductor relatively simple and can improve the efficiency of production. However, the side walls of the existing special magnetic core seat base are of the same size. During the subsequent pressing process, the top and bottom are subjected to the same pressure, causing the top and bottom to collapse, which is not conducive to the collapse of the top, thereby affecting the inductor manufacturing process. Utility Model Content

[0003] An object of the first aspect of the utility model is to provide a magnetic core seat to solve the problem in the prior art that the top structure of the side wall of the base of the magnetic core seat is not conducive to collapse, which leads to difficulties in the process of manufacturing the inductor.

[0004] Another object of the first aspect of the utility model is to solve the problem of difficulty in demoulding the magnetic core seat in the prior art.

[0005] In particular, the utility model provides a magnetic core seat, comprising:

[0006] A base, comprising a bottom wall and a side wall connected to a periphery of the bottom wall, wherein the bottom wall and the side wall form a receiving space having an opening; and

[0007] A middle column, which is located in the accommodating space, connected to the bottom wall in the middle of the bottom wall, and extends from the bottom wall toward the opening;

[0008] The height of the side wall is higher than the height of the middle column, and the cross-sectional dimensions of at least a portion of the side wall that is higher than the middle column are smaller than the cross-sectional dimensions of other portions.

[0009] Optionally, the dimension of at least a portion of the side wall that is higher than the center column portion gradually decreases from bottom to top.

[0010] Optionally, the side wall includes an inner side surface close to the center column;

[0011] At least a portion of the inner side surface that is higher than the middle column portion is a first inclined surface.

[0012] Optionally, the side wall further includes an outer side surface away from the center column;

[0013] At least a portion of the outer side surface that is higher than the middle column portion is a second inclined surface.

[0014] Optionally, the angle between the first inclined plane and the horizontal plane is 32° to 75°;

[0015] The included angle between the second inclined plane and the horizontal plane is 32° to 75°.

[0016] Optionally, a plurality of strip-shaped protrusions or strip-shaped grooves arranged side by side are further provided on the first inclined surface and / or the second inclined surface.

[0017] Optionally, each of the strip-shaped protrusions or each of the strip-shaped grooves extends downward along the top of the side wall.

[0018] Optionally, the cross-section of the strip-shaped protrusion or the strip-shaped groove is square, semicircular, triangular or trapezoidal.

[0019] Optionally, the base and the center column are formed as one piece by pressing using a mold.

[0020] In particular, the utility model also provides an inductor, comprising:

[0021] The magnetic core seat described above; and

[0022] The coil is arranged in the magnetic core seat and is buried in the magnetic core seat by deconstructing and redistributing the side wall of the magnetic core seat.

[0023] The magnetic core seat of this solution may include a base and a middle column. The middle column is arranged in the accommodating space of the base and does not contact the side wall of the base, so that the inductor can be mounted on the middle column. The height of the side wall of the base of the magnetic core seat is higher than the middle column. In the process of making the inductor, the part of the side wall higher than the middle column is crushed. In this solution, at least part of the part of the side wall higher than the middle column is made smaller than the size of other parts, so as to facilitate the top to collapse and increase the speed of inductor production. At the same time, it also avoids the side wall from being pressed and collapsed, resulting in relatively poor inductor quality.

[0024] The magnetic core seat of this scheme also needs to be pressed and deconstructed on the top during the process of making the inductor. Since the upper size of the side wall of the magnetic core seat is gradual and the size gradually decreases, it is conducive to the deconstruction of the top of the magnetic core seat and allows the deconstructed magnetic powder to slide smoothly into the space inside the side wall.

[0025] The base and the middle column of the magnetic core seat of the present solution are integrally formed by pressing with a mold, so the size is gradually reduced at the top, which is conducive to demoulding and also facilitates the process of pressing into an inductor.

[0026] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0028] Figure 1 is a schematic structural diagram of a magnetic core seat according to a specific embodiment of the utility model;

[0029] Figure 2 is a schematic cross-sectional view of a magnetic core seat according to a specific embodiment of the utility model;

[0030] Figure 3 is a schematic structural diagram of a magnetic core seat according to another specific embodiment of the utility model;

[0031] Figure 4 is a schematic cross-sectional view of a magnetic core seat according to another specific embodiment of the utility model;

[0032] Figure 5 is a schematic structural diagram of a magnetic core seat according to another specific embodiment of the utility model;

[0033] Figure 6 is a schematic cross-sectional view of a first inclined surface of a magnetic core seat according to another specific embodiment of the utility model;

[0034] Figure 7 It is a schematic cross-sectional view of a first inclined surface of a magnetic core seat according to another specific embodiment of the utility model.

[0035] Description of reference numerals:

[0036] 100-magnetic core seat; 110-base; 111-bottom wall; 112-side wall; 113-opening; 114-accommodating space; 115-inner side surface; 1151-first inclined surface; 116-outer side surface; 1161-second inclined surface; 117-strip groove; 120-middle column. DETAILED DESCRIPTION

[0037] In the description of this embodiment, it should be understood that the terms "length", "width", "height", "up", "down", "left", "right", "vertical", "horizontal", "bottom", "inside" and "outside" etc. indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] As a specific embodiment of the present invention, Figure 1 and Figure 2 As shown, this embodiment provides a magnetic core seat 100, which may include a base 110 and a middle column 120. The base 110 may include a bottom wall 111 and a side wall 112 connected to the periphery of the bottom wall 111, and the bottom wall 111 and the side wall 112 form a receiving space 114 with an opening 113. The middle column 120 is located in the receiving space 114, and is connected to the bottom wall 111 in the middle of the bottom wall 111, and extends from the bottom wall 111 toward the opening 113. The height of the side wall 112 is higher than the height of the middle column 120, and the size of the cross section of at least part of the part where the side wall 112 is higher than the middle column 120 is smaller than the cross section of other parts.

[0039] Specifically, the magnetic core seat 100 of this embodiment may include a base 110 and a middle column 120. The middle column 120 is disposed in the accommodating space 114 of the base 110 and does not contact the side wall 112 of the base 110, so that the inductor can be sleeved on the middle column 120. Specifically, the height of the side wall 112 of the base 110 of the magnetic core seat 100 of this embodiment is higher than the middle column 120. During the process of making the inductor, the part of the side wall 112 higher than the middle column 120 is crushed. In this embodiment, at least part of the part of the side wall 112 higher than the middle column 120 is made smaller than the size of other parts, so as to facilitate the top to collapse and improve the speed of inductor production. At the same time, it also avoids the side wall 112 from being pressed and collapsed below, resulting in relatively poor inductor quality.

[0040] Specifically, the size of the portion of the side wall 112 that is higher than the center column 120 in this embodiment gradually decreases from bottom to top (specifically referring to the orientation shown in the drawings, the upper side is the opening 113 end, and the lower side is the bottom wall 111).

[0041] Since the base 110 and the center column 120 of the core seat 100 of this embodiment are integrally formed by pressing with a mold, the size is gradually reduced at the top, which is convenient for demoulding and also convenient for pressing into an inductor, for example, less pressure is required.

[0042] Specifically, the magnetic core seat 100 of this embodiment is formed by placing magnetic powder in a mold and then pressing. In the process of making the magnetic core seat 100 into an inductor, the upper part of the magnetic core seat 100 also needs to be pressed and deconstructed. Since the upper size of the side wall 112 of the magnetic core seat 100 is gradual and the size gradually decreases, it is conducive to the deconstruction of the upper part of the magnetic core seat 100, and the deconstructed magnetic powder can slide smoothly into the space inside the side wall 112.

[0043] As a specific embodiment of the present invention, Figure 2 As shown, the side wall 112 of this embodiment may include an inner side surface 115 close to the center pillar 120. At least a portion of the inner side surface 115 that is higher than the center pillar 120 is a first inclined surface 1151.

[0044] Specifically, at least part of the portion of the inner side surface 115 that is higher than the middle column 120 is designed as an inclined surface, which is beneficial to the subsequent pressing process during the manufacturing of the inductor, and can be pressed with less force. In addition, the top inclined surface of the inner side surface 115 in this embodiment is designed to facilitate the powder to fall into the position of the receiving space 114.

[0045] As a specific embodiment of the present invention, Figure 3 and Figure 4 As shown, the side wall 112 of this embodiment may further include an outer side surface 116 away from the center pillar 120. At least a portion of the outer side surface 116 that is higher than the center pillar 120 is a second inclined surface 1161.

[0046] Specifically, the outer side surface 116 of the side wall 112 of this embodiment is designed to be an inclined surface, which can also facilitate pressing when manufacturing the inductor.

[0047] As a specific embodiment of the present invention, Figure 3 and Figure 4 As shown, the inner side surface 115 and the outer side surface 116 of the side wall 112 of this embodiment that are higher than the center column 120 are both designed to be inclined surfaces.

[0048] As a specific embodiment of the utility model, the angle a between the first inclined surface 1151 and / or the second inclined surface 1161 of this embodiment and the horizontal plane is 32° to 75°. For example, the angle of the inclined surface can be 32°, 45°, 60° or 75°. The angle of the inclined surface ensures that it can be pressed to make an inductor, and also ensures that it is relatively easy to form, while ensuring that the amount of magnetic powder above can fill the entire internal space. The specific angle of the inclined surface can be adjusted and designed according to factors such as the thickness of the side wall 112.

[0049] As a specific embodiment of the present invention, the inclined surface (the first inclined surface 1151 and / or the second inclined surface 1161) of this embodiment is also provided with a plurality of strip-shaped protrusions (not shown in the figure) or strip-shaped grooves 117 arranged side by side. Figure 5 FIG. 1 shows that a strip-shaped groove 117 is designed on the first inclined surface 1151 .

[0050] Specifically, the strip-shaped protrusions or strip-shaped grooves 117 can increase the pressure during the process of making the inductor, thereby making it easier to deconstruct the side wall 112. In addition, it is easier to demold during the process of using a mold to produce the magnetic core seat 100.

[0051] As a specific embodiment of the present invention, each strip-shaped protrusion or each strip-shaped groove 117 of this embodiment extends downward along the top of the side wall 112 .

[0052] Specifically, in this embodiment, the strip-shaped protrusions or strip-shaped grooves 117 are designed to extend downward from the top along the side, so that the powder decomposed from the top can be drained during the process of pressing the magnetic core seat 100 to make the inductor, so as to facilitate its falling downward.

[0053] As a specific embodiment of the present invention, the cross section of the strip-shaped protrusion or strip-shaped groove 117 of this embodiment is a square (such as Figure 7 As shown), semicircular (as Figure 6 as shown), triangle or trapezoid.

[0054] The shapes or sizes of the specific strip-shaped protrusions or strip-shaped grooves 117 can be designed to be the same or different, depending on the actual situation.

[0055] Specifically, since the base 110 and the center column 120 are formed integrally by pressing with a mold, when the side wall 112 of the base 110 is designed to have an inner side surface 115 or / and an outer side surface 116 that is higher than the center column 120 as an inclined surface, and a strip-shaped protrusion or a strip-shaped groove 117 is designed at the inclined surface, the bottom of the mold for making it is also correspondingly designed in the form of an inclined surface and a strip-shaped protrusion or an adjustment groove 117, so that in the process of adding powder for pressing the magnetic core seat 100 into the mold, the friction force at the bottom is relatively large, the powder is less, and the density above the side wall 112 of the base 110 of the magnetic core seat 100 after pressing is also small, which further improves the ability of the side wall 112 to collapse when making the inductor.

[0056] As a specific embodiment of the utility model, this embodiment also provides an inductor, which may include a magnetic core seat 100 and a coil. The magnetic core seat 100 is the above magnetic core seat 100. The coil is arranged in the magnetic core seat 100 and is sleeved on the middle column 120. The magnetic core seat 100 and the coil are placed in a mold and pressure is applied downward, so that the side wall 112 of the magnetic core seat 100 is deconstructed and redistributed, and the coil is buried in the magnetic core seat 100 to form a coil. Using the above magnetic core seat 100, the steps of inductor production can be reduced, which is beneficial to the pressing process.

[0057] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A magnetic core seat, characterized in that: include: A base, comprising a bottom wall and a side wall connected to the periphery of the bottom wall, wherein the bottom wall and the side wall form a receiving space with an opening; and A middle column, which is located in the accommodating space, connected to the bottom wall in the middle of the bottom wall, and extends from the bottom wall toward the opening; The height of the side wall is higher than the height of the middle column, and the cross-sectional dimensions of at least a portion of the side wall that is higher than the middle column are smaller than the cross-sectional dimensions of other portions.

2. The magnetic core seat according to claim 1, characterized in that: The size of at least a portion of the side wall that is higher than the center column portion gradually decreases from bottom to top.

3. The magnetic core seat according to claim 2, characterized in that: The side wall includes an inner side surface close to the center column; At least a portion of the inner side surface that is higher than the middle column portion is a first inclined surface.

4. The magnetic core seat according to claim 3, characterized in that: The side wall also includes an outer side surface away from the center column; At least a portion of the outer side surface that is higher than the middle column portion is a second inclined surface.

5. The magnetic core seat according to claim 4, characterized in that: The angle between the first inclined plane and the horizontal plane is 32° to 75°; The included angle between the second inclined plane and the horizontal plane is 32° to 75°.

6. The magnetic core seat according to claim 4, characterized in that: The first inclined surface and / or the second inclined surface are also provided with a plurality of strip-shaped protrusions or strip-shaped grooves arranged side by side.

7. The magnetic core seat according to claim 6, characterized in that: Each of the strip-shaped protrusions or each of the strip-shaped grooves extends downward along the top of the side wall.

8. The magnetic core seat according to claim 6, characterized in that: The cross section of the strip-shaped protrusion or the strip-shaped groove is square, semicircular, triangular or trapezoidal.

9. The magnetic core seat according to claim 1, characterized in that: The base and the center column are formed into one piece by pressing with a mold.

10. An inductor, characterized in that: include: The magnetic core seat according to any one of claims 1 to 9; and The coil is arranged in the magnetic core seat and is buried in the magnetic core seat by deconstructing and redistributing the side wall of the magnetic core seat.

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