Inductor framework and inductor element fixing structure

Abstract

The utility model discloses an inductor framework which comprises a wrapping post, side plates are installed at the two ends of the wrapping post, two symmetrical wire outlet grooves are formed in the two side plates, two threaded holes are formed in the outward sides of the two side plates, the two threaded holes are located at the bottoms of the two wire outlet grooves respectively, and the side faces of the threaded holes are communicated with the bottoms of the wire outlet grooves. Each threaded hole is connected with a detachable protective sleeve; compared with a traditional inductor framework, the inductor framework has the advantages that the threaded holes are formed in the bottoms of the wire outlet grooves of the side plates, the protective sleeves are connected into the threaded holes through the threads, and the inductor pins are inserted into the protective sleeves, so that external force can be prevented from directly acting on the inductor pins in the transportation or storage process; according to the inductor fixing structure, the fixing buckles at the bottoms of the side plates penetrate through the through holes and the gaskets on the PCB, the inductor framework can be rapidly fixed to the PCB, and operation is easy and convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to inductance element technical field, concretely is a kind of inductance skeleton and inductance element fixed structure. BACKGROUND

[0002] As important component in electronic circuit, inductance element is widely used in power management, signal filtering, electromagnetic interference suppression and other fields, and inductance skeleton as the basic structure of inductance element, its design directly influences the performance and reliability of inductance, traditional inductance skeleton structure is simple, mainly by winding post and the side plate of both ends of column body, however, traditional inductance skeleton lacks the protection ability to inductance pin, and the pin of inductance element is easy to bend or deform due to external force in the process of transportation or storage, directly influences the welding quality of inductance and the overall performance of circuit, and moreover, traditional inductance skeleton is usually fixed by screw, welding or adhesive when being installed to PCB, this mode not only complex installation process, and difficult to disassemble when needing to replace or maintain.

[0003] Therefore, we design a kind of inductance skeleton and inductance element fixed structure here to solve the above problems. CONTENT OF UTILITY MODEL

[0004] The utility model is directed at the deficiencies of prior art, and provides a kind of inductance skeleton and inductance element fixed structure to solve the problems raised in background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of inductance skeleton, including winding post, the both ends of the winding post are equipped with side plate, two symmetric wire outlet slots are opened on two side plates, the side of the outward of two side plates is equipped with two screw holes, two screw holes are located at the bottom of two wire outlet slots respectively, and the side surface of screw hole is communicated with the bottom of wire outlet slot, and the detachable protective sleeve is connected on each screw hole.

[0006] Preferably, the one end of the protective sleeve is connected with external thread pipe, and the external thread pipe is connected on the screw hole by thread.

[0007] Preferably, the outside of the protective sleeve is provided with multiple axial strip-shaped protrusions, and the strip-shaped protrusions are annularly arrayed.

[0008] Preferably, the shape of the winding post is quadrangular prism, and the four side edges of the winding post are all rounded.

[0009] Preferably, the mounting hole for installing magnetic core is opened in the overall middle position of the winding post and two side plates.

[0010] The utility model provides an inductance element fixing structure which comprises an inductance skeleton, and the inductance skeleton further comprises fixing buckles, a PCB and washers, the fixing buckles are four in total, and two fixing buckles are arranged on the bottom of each side plate respectively, the PCB is provided with through holes for the fixing buckles to pass through, and the washers are four in total and are sleeved on the outside of the four fixing buckles respectively, and the PCB is located between the washers and the side plates.

[0011] Preferably, the fixing buckle is a hollow cylinder, the bottom of the cylinder is conical, a row of outward protruding buckle teeth are arranged on the outside of the fixing buckle and close to the bottom, the buckle teeth are buckled on the bottom of the washer, and the bottom of the fixing buckle is provided with a cross groove.

[0012] Preferably, the depth of the cross groove is greater than half the length of the fixing buckle.

[0013] Compared with the prior art, the utility model provides an inductance skeleton and an inductance element fixing structure, and has the following beneficial effects:

[0014] 1. Compared with the traditional inductance skeleton, the wire outlet groove bottom of the side plate is provided with a threaded hole, and a protective sleeve is connected in the threaded hole in a threaded manner, the inductance pin can be inserted into the protective sleeve, so that external force in the transportation or storage process can not act directly on the inductance pin, thereby preventing the inductance pin from being bent or deformed due to external force.

[0015] 2. The inductance fixing structure can quickly fix the inductance skeleton to the PCB by allowing the fixing buckle at the bottom of the side plate to pass through the through hole on the PCB and the washer, the fixing buckle can be pulled out of the through hole on the PCB and the washer by extruding the bottom of the fixing buckle 9, and the operation is simple and convenient, so that the user can install or disassemble the inductance element on the PCB. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an overall structure schematic view of the utility model inductance skeleton;

[0017] Figure 2 It is an overall structure schematic view of the utility model inductance skeleton;

[0018] Figure 3 It is an overall structure schematic view of the utility model inductance skeleton;

[0019] Figure 4 It is an overall structure schematic view of the utility model inductance skeleton;

[0020] Figure 5 It is an overall structure schematic view of the utility model inductance skeleton;

[0021] Marked: 1, winding post; 2, side plate; 3, wire outlet groove; 4, threaded hole; 5, protective sleeve; 6, external threaded tube; 7, strip-shaped protrusion; 8, mounting hole; 9, fixing buckle; 10, PCB board; 11, washer; 12, buckle tooth; 13, cross slot. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Please refer to Figures 1-5 In the embodiment, an inductor skeleton is mainly composed of a winding post 1 and a side plate 2. The winding post 1 is designed in the shape of a quadrangular prism, and the four side edges are all rounded. The rounding of the four side edges of the winding post 1 can effectively reduce the abrasion of the wire by the side edges during winding. The two ends of the winding post 1 are both provided with a side plate 2. The side plate 2 serves to limit the wire wound on the winding post 1, so as to avoid the wire from sliding off the winding post 1. The overall middle position of the winding post 1 and the two side plates 2 is provided with a mounting hole 8 for mounting a magnetic core.

[0024] Please refer to Figure 1 and Figure 2 In the embodiment, the two side plates 2 are both provided with two symmetrical wire outlet grooves 3. The pins at the two ends of the wire can be led out from the wire outlet grooves 3. The outward side of each of the two side plates 2 is provided with two threaded holes 4. The threaded holes 4 are respectively located at the bottom of the two wire outlet grooves 3, and the side surface of the threaded hole 4 is in communication with the bottom of the wire outlet groove 3. A detachable protective sleeve 5 is connected to each threaded hole 4. The protective sleeve 5 serves to protect the pins at the two ends of the wire, so as to prevent the pins of the inductor from being bent or deformed due to external pressure during transportation or storage. One end of the protective sleeve 5 is connected with an external threaded tube 6. The external threaded tube 6 is connected to the threaded hole 4 through screwing. The outer side of the protective sleeve 5 is provided with a plurality of axial strip-shaped protrusions 7, which are arranged in a ring array. The strip-shaped protrusions 7 serve to enhance the bending strength of the protective sleeve 5, so as to better protect the pins of the inductor.

[0025] Please refer to Figure 4 and Figure 5The inductance element fixing structure comprises an inductance skeleton, four fixing buckles 9, a PCB board 10 and four gaskets 11. The four fixing buckles 9 are arranged on the bottom of the two side plates 2 respectively, and the PCB board 10 is provided with through holes for the fixing buckles 9 to pass through. The four gaskets 11 are arranged outside the four fixing buckles 9 respectively, and the PCB board 10 is arranged between the gaskets 11 and the side plates 2. The inductance skeleton can be fixed on the PCB board 10 by passing the fixing buckles 9 through the through holes of the PCB board 10 and then arranging the gaskets 11 on the fixing buckles 9. The gaskets 11 can effectively prevent the fixing buckles 9 from loosening. The gaskets 11 are designed with different thicknesses, and can be selected according to the thickness of the PCB board 10.

[0026] Please refer to Figure 3 The fixing buckle 9 is a hollow cylinder, and the bottom of the cylinder is conical. A ring of outwardly protruding buckle teeth 12 is arranged on the outer side of the fixing buckle 9 and close to the bottom. The buckle teeth 12 are buckled on the bottom of the gasket 11. The bottom of the fixing buckle 9 is provided with a cross slot 13, and the depth of the cross slot 13 is greater than half the length of the fixing buckle 9. During the process of fixing the inductance skeleton on the PCB board 10, when the buckle teeth 12 on the fixing buckle 9 pass through the through holes of the PCB board 10 and the gaskets 11, the side of the fixing buckle 9 will be extruded and bent towards the inside of the cross slot 13, so that the buckle teeth 12 can smoothly pass through the through holes of the PCB board 10 and the gaskets 11. When the buckle teeth 12 completely pass through the through holes of the PCB board 10 and the gaskets 11, the extrusion of the fixing buckle 9 disappears, and the side of the fixing buckle 9 will reset under the action of its own elasticity, so that the buckle teeth 12 are buckled on the bottom of the gasket 11.

[0027] The use process is as follows: when winding the lead wire on the inductance skeleton, the lead wire is wound on the winding column 1, and the pins at both ends of the lead wire are made to pass out of the wire outlet slots 3 on the two side plates 2, then the protective sleeve 5 is sleeved on the outside of the pins, and finally the outer threaded tube 6 on the protective sleeve 5 is screwed into the threaded hole 4 of the side plate 2. During the transportation and storage of the inductance element, the protective sleeve 5 can protect the pins of the inductance element from being bent or deformed due to external extrusion during transportation or storage. When the inductance element is installed, the protective sleeve 5 is detached from the side plate 2, and the pins can be exposed.

[0028] When fixing the inductance element on the PCB board 10, the fixing buckles 9 at the bottom of the side plates 2 are passed through the through holes of the PCB board 10, then the gaskets 11 with appropriate thickness are selected according to the thickness of the PCB board 10, and finally the gaskets 11 are sleeved on the fixing buckles 9, so as to complete the fixing of the inductance element. When the inductance element is disassembled, only the bottom of the fixing buckle 9 needs to be extruded, and the fixing buckle 9 can be pulled out of the through holes of the PCB board 10 and the gaskets 11, so as to complete the disassembly of the inductance element.

[0029] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. An inductor former comprising a bobbin (1), characterized in that: Both ends of the winding post (1) are provided with side plates (2), two symmetric wire outlet grooves (3) are formed in each side plate (2), two screw holes (4) are formed in the outer side of each side plate (2), the two screw holes (4) are respectively located at the bottom of the two wire outlet grooves (3), the side surface of the screw hole (4) is communicated with the bottom of the wire outlet groove (3), and a detachable protective sleeve (5) is connected to each screw hole (4).

2. An inductor former according to claim 1, characterized in that: One end of the protective sleeve (5) is connected with an external thread pipe (6), and the external thread pipe (6) is connected with the screw hole (4) through thread connection.

3. The inductor former of claim 1, wherein: The outer side of the protective sleeve (5) is provided with a plurality of axial strip-shaped protrusions (7), and the strip-shaped protrusions (7) are arranged in an annular array.

4. The inductor former of claim 1, wherein: The shape of the winding post (1) is a quadrangular prism, and the four side edges of the winding post (1) are all chamfered.

5. The inductor former of claim 1, wherein: A mounting hole (8) for mounting a magnetic core is formed in the middle of the whole winding post (1) and the two side plates (2).

6. An inductor fixing structure comprising an inductor frame according to any one of claims 1 to 5, further comprising a fixing buckle (9), a PCB board (10) and a gasket (11), characterized in that: There are four fixing buckles (9), and each two fixing buckles (9) are arranged at the bottom of the two side plates (2), respectively, a through hole is formed in the PCB plate (10) for the fixing buckle (9) to pass through, there are four gaskets (11), and each gasket (11) is sleeved outside the four fixing buckles (9), and the PCB plate (10) is located between the gasket (11) and the side plate (2).

7. The inductive element securing structure of claim 6, wherein: The fixing buckle (9) is a hollow cylinder, the bottom of the cylinder is conical, a ring of outward protruding buckle teeth (12) is arranged on the outer side of the fixing buckle (9) and close to the bottom, the buckle teeth (12) are buckled at the bottom of the gasket (11), and a cross groove (13) is formed in the bottom of the fixing buckle (9).

8. The inductive element securing structure of claim 7, wherein: The depth of the cross groove (13) is greater than half the length of the fixing buckle (9).

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