Inductor magnetic core and inductor

Abstract

The inductor magnetic core comprises a magnetic core body, a fixed end cover is fixed to one end of the magnetic core body, a positioning disc is fixed to the other end of the magnetic core body, a movable end cover is connected to the periphery of the magnetic core body in a screwed mode, a spiral strip is arranged on the inner wall of the movable end cover, and a spiral groove matched with the spiral strip is formed in the outer wall of the magnetic core body. A clamping groove is formed in the fixed end cover in the radial direction, and a guide groove is formed in the movable end cover in the radial direction. According to the utility model, one end of a winding copper wire firstly passes through the guide groove and then is clamped in the clamping groove for positioning, so that when the movable end cover rotates and moves towards the positioning disc, the copper wire can be guided, and then the copper wire is driven to be uniformly and spirally wound on the surface of a magnetic core, so that the copper wire cannot be overlapped and crossed during winding, the flatness is higher, and the winding efficiency is improved. And later renovation and installation of the protection structure are facilitated.

Description

Technical Field

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

[0002] An inductor is a component that can convert electrical energy into magnetic energy and store it. The structure of an inductor is similar to that of a transformer, but it has only one winding. An inductor has a certain inductance, and it only blocks the change of current. If there is no current flowing through the inductor, it will try to block the current from flowing through it when the circuit is connected; if there is current flowing through the inductor, it will try to maintain the current unchanged when the circuit is disconnected.

[0003] A magnetic core is installed inside the inductor, and copper wire is wound around the outside of the magnetic core in a spiral shape to form a winding. However, the existing inductor magnetic cores are mostly cylindrical magnetic cores and do not have a conductor structure. The copper wire is prone to overlapping and crossing when winding, resulting in uneven exterior and poor flatness, which is not convenient for subsequent repairs and installation of protective structures.

[0004] To this end, we propose an inductor core and an inductor to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an inductor core and an inductor to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An inductor magnetic core comprises a magnetic core, a fixed end cap is fixed at one end of the magnetic core, a positioning plate is fixed at the other end of the magnetic core, a movable end cap is screwed on the periphery of the magnetic core, a spiral strip is provided on the inner wall of the movable end cap, and a spiral groove matching the spiral strip is provided on the outer wall of the magnetic core, a clamping groove is radially opened on the fixed end cap, and a guide groove is radially opened on the movable end cap.

[0008] In a further embodiment, two side walls of the guide groove are symmetrically provided with slide grooves, a limit block is installed inside the slide groove through a spring sheet, and the limit block slides from the slide groove to the inside of the guide groove.

[0009] In a further embodiment, the end of the limit block extending out of the slide slot has a semicircular structure.

[0010] In a further embodiment, a winding post is installed inside the slot.

[0011] In a further embodiment, a stepped groove matching the positioning disk is formed on a side of the movable end cover close to the positioning disk, and the depth of the stepped groove is equal to the thickness of the positioning disk.

[0012] In a further embodiment, a pair of positioning balls are symmetrically mounted on one side of the movable end cover close to the positioning plate, and positioning holes corresponding to the positioning balls are opened on the positioning plate, and the positioning balls are matched with the positioning holes.

[0013] In a further embodiment, a plurality of grooves are formed on the outer edge of the movable end cover along the axial direction, and the grooves are symmetrically distributed about the axis of the movable end cover.

[0014] Another object of the present invention is to provide an inductor, comprising the inductor core, wherein the inductor also comprises a winding copper wire spirally wound around the periphery of the inductor core, one end of the winding copper wire is clamped in the clamping groove, and the other end is clamped in the guide groove.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model arranges that one end of the winding copper wire first passes through the guide groove and then is clamped in the clamping groove for positioning, at this time, when the movable end cover rotates and moves in the direction close to the positioning plate, the copper wire can be guided, and then the copper wire is driven to be evenly spirally wound on the surface of the magnetic core, so that the copper wire will not overlap and cross during winding, the flatness is higher, and it is convenient for later repair and installation of the protective structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a rear view structural diagram of the movable end cover of the utility model;

[0019] Figure 3 It is a schematic diagram of the partially cutaway structure of the guide groove of the movable end cover of the utility model.

[0020] In the figure: 1, magnetic core; 11, spiral groove; 2, fixed end cover; 21, slot; 22, winding column; 3, movable end cover; 31, spiral strip; 32, guide groove; 321, slide groove; 33, groove; 34, step groove; 4, positioning plate; 41, positioning hole; 5, limit block; 6, spring piece; 7, positioning ball. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3 The invention discloses an inductor magnetic core, comprising a magnetic core 1, a fixed end cover 2 is fixed to one end of the magnetic core 1, and a positioning plate 4 is fixed to the other end of the magnetic core 1, a movable end cover 3 is screwed to the periphery of the magnetic core 1, a spiral strip 31 is arranged on the inner wall of the movable end cover 3, and a spiral groove 11 matching the spiral strip 31 is arranged on the outer wall of the magnetic core 1, and the cooperation of the spiral groove 11 and the spiral strip 31 enables the movable end cover 3 to move axially along the magnetic core 1 when rotating, and a clamping groove 21 is radially opened on the fixed end cover 2, and a guide groove 32 is radially opened on the movable end cover 3, so that when winding is needed, the movable end cover 3 is first rotated to be close to the fixed end cover 2, and one end of the copper wire is inserted into the clamping groove 21 from the guide groove 32, and the copper wire at this end is kept stationary, and then the movable end cover 3 is rotated, and the movable end cover 3 drives the copper wire to rotate and move, so that the copper wire can be evenly wound on the magnetic core 1.

[0025] In order to prevent the copper wire from escaping from the guide groove 32, a slide groove 321 is symmetrically provided on both side walls of the guide groove 32. A limit block 5 is installed inside the slide groove 321 through a spring piece 6, and the limit block 5 slides from the slide groove 321 to the inside of the guide groove 32, thereby limiting the copper wire so that it can be locked between the limit block 5 and the bottom of the guide groove 32 to prevent it from escaping. At the same time, the limit block 5 can retract into the slide groove 321 by the elastic action of the spring piece 6, thereby making it convenient to make enough space for the copper wire to pass when it is inserted into the guide groove 32. In order to reduce the damage of the limit block 5 to the copper wire, a semicircular structure is adopted at one end of the limit block 5 extending out of the slide groove 321, so that the copper wire will not be scratched by the limit block 5 when it is inserted.

[0026] In order to further improve the positioning stability of the slot 21 on the movable end of the copper wire, a winding post 22 is installed inside the slot 21 so that the movable end of the copper wire can be wound around the winding post 22, thereby enhancing its positioning effect and preventing the movable end from loosening when the copper wire is wound.

[0027] In order to facilitate locking the movable end cover 3 after the winding is completed and make it unable to move, a step groove 34 matching the positioning disk 4 is provided on the side of the movable end cover 3 close to the positioning disk 4, and the depth of the step groove 34 is equal to the thickness of the positioning disk 4, so that after the movable end cover 3 is tightly attached to the positioning disk 4, the back side can be flush with the positioning disk 4, and at the same time, a pair of positioning balls 7 are symmetrically installed on the side of the movable end cover 3 close to the positioning disk 4, and the positioning disk 4 is provided with positioning holes 41 corresponding to the positioning balls 7 one by one, and the positioning balls 7 are matched with the positioning holes 41, so that the movable end cover 3 can be locked and made unable to move.

[0028] In order to facilitate the control of the rotation of the movable end cover 3, a plurality of grooves 33 are provided on the outer edge of the movable end cover 3 along the axial direction, and the grooves 33 are symmetrically distributed about the axis center of the movable end cover 3, thereby increasing the roughness of the outer edge side of the movable end cover 3, making it less likely to slip during use and more stable and smooth in rotation.

[0029] An inductor includes an inductor core. The inductor also includes a winding copper wire spirally wound on the periphery of the inductor core. After the winding copper wire is wound on the inductor core, one end of the winding copper wire is clamped in a clamping groove 21, and the other end is clamped in a guide groove 32.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An inductor magnetic core, comprising a magnetic core (1), characterized in that: A fixed end cover (2) is fixed to one end of the magnetic core (1), and a positioning plate (4) is fixed to the other end of the magnetic core (1). A movable end cover (3) is screwed onto the periphery of the magnetic core (1). A spiral strip (31) is provided on the inner wall of the movable end cover (3), and a spiral groove (11) matching the spiral strip (31) is provided on the outer wall of the magnetic core (1). A clamping groove (21) is radially provided on the fixed end cover (2), and a guide groove (32) is radially provided on the movable end cover (3).

2. The inductor core according to claim 1, characterized in that: The two side walls of the guide groove (32) are symmetrically provided with sliding grooves (321), the interior of the sliding groove (321) is provided with a limiting block (5) via a spring sheet (6), and the limiting block (5) slides from the sliding groove (321) to the interior of the guide groove (32).

3. The inductor core according to claim 2, characterized in that: One end of the limiting block (5) extending out of the sliding groove (321) has a semicircular structure.

4. The inductor core according to claim 1, characterized in that: A winding post (22) is installed inside the clamping slot (21).

5. The inductor core according to claim 1, characterized in that: A stepped groove (34) matching the positioning disc (4) is provided on one side of the movable end cover (3) close to the positioning disc (4), and the depth of the stepped groove (34) is equal to the thickness of the positioning disc (4).

6. The inductor core according to claim 1, characterized in that: A pair of positioning balls (7) are symmetrically mounted on one side of the movable end cover (3) close to the positioning plate (4), and positioning holes (41) corresponding to the positioning balls (7) are formed on the positioning plate (4), and the positioning balls (7) are matched and engaged with the positioning holes (41).

7. The inductor core according to claim 1, characterized in that: The outer edge of the movable end cover (3) is provided with a plurality of grooves (33) along the axial direction, and the grooves (33) are symmetrically distributed about the axis centerline of the movable end cover (3).

8. An inductor, characterized in that: The inductor comprises an inductor core as claimed in any one of claims 1 to 7, wherein the inductor further comprises a winding copper wire spirally wound around the periphery of the inductor core, one end of the winding copper wire is clamped in a clamping groove (21), and the other end is clamped in a guide groove (32).

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