CN217035355U

CN217035355U - Welding-free combined small inductor

Info

Publication number: CN217035355U
Application number: CN202220704268.3U
Authority: CN
Inventors: 曾宁徽
Original assignee: Shenzhen Chixing Technology Co ltd
Current assignee: Shenzhen Chixing Technology Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-07-22
Anticipated expiration: 2032-03-29

Abstract

The utility model discloses a welding-free combined small inductor. The magnetic core comprises a base, a shielding cover, a magnetic core column and windings wound on the magnetic core column, wherein at least two conductive terminals are embedded in the base, the two ends of each conductive terminal are respectively exposed out of the upper end face and the lower end face of the base, the shielding cover can be detachably buckled on the base, the upper end and the lower end of the magnetic core column are respectively provided with a limiting protrusion, and the base and the shielding cover are both provided with a limiting notch matched with the limiting protrusion. The integral components of the utility model are uniformly distributed and assembled in a combined mode, in the assembling process, the shielding cover is detachably assembled on the base, and the positioning embedding of the limiting convex and the limiting notch ensures that the magnetic core column can be limited and installed under the action of no adhesive or other cementing materials, so the assembly of the shielding cover or the magnetic core column is finished in a non-welding mode, the requirements on the assembling technology are greatly reduced in the production process, and the assembling cost is effectively reduced.

Description

Welding-free combined small inductor

Technical Field

The utility model relates to the technical field of inductors, in particular to a welding-free combined small inductor.

Background

As is well known, an Inductor (Inductor) is a component that converts electrical energy into magnetic energy and stores the magnetic energy. The inductor is similar in structure to a transformer, but has only one winding. The inductor has a certain inductance which only impedes the change of the current. If the inductor is in a state where no current is passing, it will try to block the current from flowing through it when the circuit is on; if the inductor is in a state where current is flowing, it will try to maintain the current constant when the circuit is open. Inductors are also known as chokes, reactors, dynamic reactors.

At present, the existing inductor basically comprises components such as a framework, a winding, a shielding case, a packaging material, a magnetic core column or an iron core, and the like, welding among the components is basically performed on the whole packaging, and although the welding can ensure the stable connection among the components, the welding is very troublesome on the production operation, the technical requirement is high, the cost requirement is also high, and the packaging efficiency is not high enough.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide a soldering-free combination type small inductor.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a exempt from combined small-size inductor of welding, includes base, shield cover, magnetic core post and winding and the winding on the magnetic core post, the base buries and inlays and has two at least conductive terminal, conductive terminal's both ends expose respectively in the upper and lower terminal surface of base, the lock can be dismantled on the base to the shield cover, the upper and lower end of magnetic core post is provided with spacing protruding respectively, base and shield cover all are provided with the spacing notch with spacing protruding adaptation, spacing protruding top on the magnetic core post touches in the spacing notch of shield cover, spacing protruding top of magnetic core post lower extreme touches in the spacing notch of base to behind the shield cover lock at the base, the shield cover forms the centre gripping of magnetic core post with the base and fixes, the both ends of winding are connected with the conductive terminal that corresponds is electrically conductive respectively.

Preferably, the shield cover is a metal shield cover, the edge of the shield cover is raised to form a bending foot, the inner side of the bending foot is attached to the side face of the base, the tail end of the bending foot is bent and attached to the bottom of the base, and the lower end of the bending foot, which is located on the conductive terminal, is provided with a avoiding hole.

Preferably, the bottom of the base is provided with a groove at the tail end of the bending foot, and the tail end of the bending foot is embedded in the hook groove after being bent.

Preferably, trays are respectively arranged at two ends of the magnetic core column, the limiting protrusions are arranged on the trays, and the diameter of each tray is larger than or equal to that of the corresponding winding.

Preferably, the bottom end of the base is provided with a mounting seat for mounting on an external object.

Due to the adoption of the scheme, the integral components of the utility model are uniformly divided and assembled in a combined mode, in the assembling process, the shielding cover is detachably assembled on the base, and the magnetic core column is subjected to limited installation under the action of no adhesive or other cementing materials through the contraposition embedding of the limiting convex and the limiting notch, so that the assembly of the shielding cover and the magnetic core column is finished in a non-welding mode, the requirements on the assembly technology in the production process are greatly reduced, and the assembly cost is effectively reduced.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural view of the base provided with the through-insertion hole according to the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection unless otherwise specifically stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 and fig. 2, the welding-free combined small inductor provided in this embodiment includes a base 1, a shielding case 2, a core column 3, and a winding 4 wound around the core column 3, wherein at least two conductive terminals 5 are embedded in the base 1, two ends of the conductive terminals 5 are respectively exposed out of upper and lower end surfaces of the base 1, the shielding case 2 is detachably fastened on the base 1, the upper and lower ends of the core column 3 are respectively provided with a limiting protrusion 6, the base 1 and the shielding case 2 are both provided with a limiting notch 7 adapted to the limiting protrusion 6, the limiting protrusion 6 at the upper end of the core column 3 is pressed against the limiting notch 7 of the shielding case 2, the limiting protrusion 6 at the lower end of the core column 3 is pressed against the limiting notch 7 of the base 1, and after the shielding case 2 is fastened on the base 1, the shielding case 2 and the base 1 form a clamping fixation for the core column 3, and two ends of the winding 4 are respectively in conductive connection with the corresponding conductive terminals 5.

The split type existence is equallyd divide to the whole part of this embodiment, and assemble with the form of combination, at the in-process of assembly, shield cover 2 is removable type assembly on base 1, and inlay through spacing protruding 6 and spacing notch 7 counterpoint in advance, make magnetic core post 3 under the effect that does not adopt any adhesive or other cementate material, just carry out spacing installation with magnetic core post 3, consequently no matter shield cover 2 or magnetic core post 3's equipment, all adopt non-welded form to accomplish, make in process of production, requirement greatly reduced to assembly technique, and effectual assembly cost that has reduced.

Further, the shield 2 of this embodiment is removable package assembly, and it specifically can adopt the nature of bending of utilizing the metal to assemble, this embodiment promptly shield 2 is the metal shield, the marginal arch of shield 2 forms the foot 8 of bending, the inboard of the foot 8 of bending is laminated in the side of base 1, just the end of the foot 8 of bending is buckled and is laminated in the bottom of base 1, this utilize the foot 8 of bending buckle in order to play fixed effect, and the foot of bending is located the lower extreme of conductive terminal and is provided with dodges hole 10. If necessary, a corresponding inserting through opening 100 can be selectively formed on the base 1, and then the bending pins 8 are inserted first and then bent and clamped, as shown in fig. 2.

Further, in order to strengthen the steadiness of the shielding case 2, the bottom of the base 1 of the embodiment is located the terminal of the bending foot 8 and is provided with the groove 9, the terminal of the bending foot 8 is embedded in the hook groove 9 after being bent, so that the groove 9 is utilized and spacing is carried out again, a barb is formed between the bending foot 8 and the groove 9, and the connection is stable and stable in further promotion. By adopting the detachable assembly, the shielding case 2 can be conveniently assembled and disassembled.

Further, in order to meet the winding of the winding 4, trays 11 are respectively arranged at two ends of the magnetic core column 3, the limiting protrusions 6 are arranged on the trays 11, and the diameter of each tray 11 is larger than or equal to that of the winding 4.

Further, when the portable electronic device is used specifically, the portable electronic device needs to be mounted on an external object, such as a PCB, so that the corresponding mounting seat 12 is disposed at the edge side of the bottom of the base 1 (for a specific direction, only shielding from the bending foot needs to be avoided, and therefore this embodiment is not limited to this), the mounting seat 12 is provided with a mounting hole 13, and the mounting hole 13 is fixedly mounted by screwing a screw. Of course, the fixing can also be carried out directly by using an adhesive.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are also included in the scope of the present invention.

Claims

1. A welding-free combined small inductor is characterized in that: including base, shield cover, core leg and winding and the winding on the core leg, the base buries and inlays and has two at least conductive terminal, conductive terminal's both ends expose respectively in the upper and lower terminal surface of base, the lock can be dismantled on the base to the shield cover, the upper and lower end of core leg is provided with spacing protruding respectively, base and shield cover all are provided with the spacing notch with spacing protruding adaptation, the spacing protruding top of core leg upper end touches in the spacing notch of shield cover, the spacing protruding top of core leg lower extreme touches in the spacing notch of base to behind the shield cover lock at the base, the shield cover forms the centre gripping of fixing the core leg with the base, the both ends of winding are connected with the conductive terminal that corresponds are electrically conductive respectively.

2. The solder-free combination type miniature inductor of claim 1 wherein: the shielding cover is a metal shielding cover, the edge of the shielding cover is raised to form a bending foot, the inner side of the bending foot is attached to the side face of the base, the tail end of the bending foot is bent and attached to the bottom of the base, and the lower end of the bending foot, which is located on the conductive terminal, is provided with a avoiding hole.

3. A solder-free combination miniature inductor as set forth in claim 2 wherein: the bottom of the base is provided with a groove at the tail end of the bending foot, and the tail end of the bending foot is embedded in the hook groove after being bent.

4. A solder-free combination type miniature inductor as set forth in claim 3 wherein: the two ends of the magnetic core column are respectively provided with a tray, the limiting protrusions are arranged on the trays, and the diameter of each tray is larger than or equal to that of the corresponding winding.

5. The solder-free combination type miniature inductor of claim 4, wherein: the base bottom is provided with the mount pad that is used for installing on outside article.