CN209859777U

CN209859777U - Bending-foot-free coil winding connection structure

Info

Publication number: CN209859777U
Application number: CN201920537764.2U
Authority: CN
Inventors: 罗皓
Original assignee: Baili Electronic (dongguan) Co Ltd
Current assignee: Baili Electronic (dongguan) Co Ltd
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2019-12-27
Anticipated expiration: 2029-04-19

Abstract

The utility model discloses a winding connection structure of a bending-free coil, which comprises an insulation body, a conductive substrate and a coil; the circumferential side surface of the insulating body is concavely provided with an annular accommodating groove, and the bottom surface of the insulating body is concavely provided with a concave position; this conductive substrate inlays the shaping and fixes in insulator's bottom, and conductive substrate's bottom surface is concave to be equipped with the screens, and packs in screens and the concave position and have conductive adhesive, and the through-hole of intercommunication annular storage tank is seted up to the bottom surface of this screens, and the internal diameter of through-hole is less than the internal diameter of screens, and conductive substrate is connected with electrically conductive foot, should electrically conductive foot stretches out downwards outside insulator. Through inlaying the shaping with electrically conductive base plate and fixing in insulator's bottom, can strengthen insulator's intensity of bottom on the one hand, on the other hand it plays the effect of connecting electrically conductive foot and coil, can avoid the hook after the coil winding, only need on the point conductive adhesive can to electrically conductive foot optional carbide guarantees structural strength, can adopt automatic plug-in machine to peg graft the product on the circuit board.

Description

Bending-foot-free coil winding connection structure

Technical Field

The utility model belongs to the technical field of the electron device technique and specifically relates to indicate a exempt from hook formula coil wire winding connection structure.

Background

An Inductor (Inductor) is a component that can convert electrical energy into magnetic energy for storage. The inductor is similar in structure to a transformer, but has only one winding. The inductor has an inductance that only impedes the change in 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 current passing state, the inductor will try to keep the current unchanged when the circuit is opened. Inductors are also known as chokes, reactors, dynamic reactors.

The pins of the current inductor are usually formed by integrally extending one end of a coil, so that bending operation is needed after the coil is wound, and the pins formed by the structure have insufficient strength, so that an automatic plugging machine cannot be adopted to plug a product on a circuit board. Therefore, there is a need for improvements in current inductors.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a winding connection structure of a winding coil without bending pins, which can effectively solve the problem that the existing inductor needs to be bent to form pins and the strength of the pins is insufficient to be automatically inserted by an automatic inserting machine.

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

a winding connection structure of a bending-free coil comprises an insulation body, a conductive substrate and a coil; the circumferential side surface of the insulating body is concavely provided with an annular accommodating groove, and the bottom surface of the insulating body is concavely provided with a concave position; the conductive substrate is embedded and molded and fixed in the bottom of the insulating body, a clamping position is concavely arranged on the bottom surface of the conductive substrate, the clamping position is in opposite communication with the concave position, conductive glue is filled in the clamping position and the concave position, a through hole communicated with the annular accommodating groove is formed in the bottom surface of the clamping position, the inner diameter of the through hole is smaller than that of the clamping position, the conductive substrate is connected with conductive pins, and the conductive pins downwards extend out of the insulating body; the end of the coil is provided with a chuck which is embedded in a clamping position, and the coil passes through the through hole to be wound and accommodated in the annular accommodating groove.

As a preferred scheme, the conductive substrate is two that bilateral symmetry set up, and the electrically conductive foot that corresponds and coil are two, and the dop of two coil one end inlays respectively in the screens of corresponding conductive substrate, and the other end butt fusion of two coils switches on.

Preferably, the insulating body is i-shaped.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:

through inlaying the shaping with electrically conductive base plate and fixing in insulator's bottom, can strengthen insulator's intensity of bottom on the one hand, on the other hand it plays the effect of connecting electrically conductive foot and coil, can avoid the hook after the coil winding, only need on the point conductive adhesive can to electrically conductive foot optional carbide guarantees structural strength, can adopt automatic plug-in machine to peg graft the product on the circuit board.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is a schematic cross-sectional view of a preferred embodiment of the present invention.

The attached drawings indicate the following:

10. insulating body 11, annular containing groove

12. Concave position 20 and conductive substrate

21. Position-limiting 22, through hole

30. Coil 31, chuck

40. Conductive adhesive 50, conductive pins.

Detailed Description

Referring to fig. 1, a specific structure of a preferred embodiment of the present invention is shown, which includes an insulating body 10, a conductive substrate 20 and a coil 30.

The peripheral side surface of the insulating body 10 is concavely provided with an annular containing groove 11, and the bottom surface of the insulating body 10 is concavely provided with a concave position 12; in this embodiment, the insulating body 10 is in an i shape.

The conductive substrate 20 is fixed in the bottom of the insulating body 10 by insert molding, a clamping portion 21 is concavely arranged on the bottom surface of the conductive substrate 20, the clamping portion 21 is communicated with the concave portion 12 in a facing manner, conductive adhesive 40 is filled in the clamping portion 21 and the concave portion 12, a through hole 22 communicated with the annular accommodating groove 11 is formed in the bottom surface of the clamping portion 21, the inner diameter of the through hole 22 is smaller than that of the clamping portion 21, the conductive substrate 20 is connected with a conductive pin 50, the conductive pin 50 extends out of the insulating body 10 downwards, and the conductive substrate 20 and the conductive pin 50 are made of hard metal, such as aluminum alloy, copper alloy, zinc alloy and the like.

The coil 30 has a tab 31 at an end thereof, the tab 31 is fitted into the tab 21, and the coil 30 is wound through the through hole 22 and received in the annular receiving groove 11.

In this embodiment, the two conductive substrates 20 are symmetrically disposed, the corresponding conductive pins 50 and the corresponding coils 30 are two, the clips 31 at one end of the two coils 30 are respectively embedded in the clips 21 of the corresponding conductive substrate 20, and the other ends of the two coils 30 are welded and conducted.

Detailed description the manufacturing process of this embodiment is as follows:

firstly, the conductive substrate 20 and the conductive pins 50 are connected and conducted and placed in an injection mold to form the insulation body 10 through injection molding, then, the insulation body 10 is positioned on a jig through the conductive pins 50, then, one end of the coil 30 is provided with the chuck 31, the other end of the coil 30 penetrates through the through hole 22 from bottom to top to extend into the annular accommodating groove 11, the coil 30 is wound and accommodated in the annular accommodating groove 11, at the moment, the chuck 31 is clamped in the clamping position 21, and then, the clamping position 21 and the concave position 12 are filled with the conductive adhesive 40.

The utility model discloses a design focus lies in: through inlaying the shaping with electrically conductive base plate and fixing in insulator's bottom, can strengthen insulator's intensity of bottom on the one hand, on the other hand it plays the effect of connecting electrically conductive foot and coil, can avoid the hook after the coil winding, only need on the point conductive adhesive can to electrically conductive foot optional carbide guarantees structural strength, can adopt automatic plug-in machine to peg graft the product on the circuit board.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a exempt from hook formula coil wire winding connection structure which characterized in that: comprises an insulating body, a conductive substrate and a coil; the circumferential side surface of the insulating body is concavely provided with an annular accommodating groove, and the bottom surface of the insulating body is concavely provided with a concave position; the conductive substrate is embedded and molded and fixed in the bottom of the insulating body, a clamping position is concavely arranged on the bottom surface of the conductive substrate, the clamping position is in opposite communication with the concave position, conductive glue is filled in the clamping position and the concave position, a through hole communicated with the annular accommodating groove is formed in the bottom surface of the clamping position, the inner diameter of the through hole is smaller than that of the clamping position, the conductive substrate is connected with conductive pins, and the conductive pins downwards extend out of the insulating body; the end of the coil is provided with a chuck which is embedded in a clamping position, and the coil passes through the through hole to be wound and accommodated in the annular accommodating groove.

2. The connecting structure for winding a coil without bending legs according to claim 1, wherein: the conductive substrate is two that bilateral symmetry set up, and the electrically conductive foot and the coil that correspond are two, and the dop of two coil one end inlays respectively in the screens of corresponding conductive substrate, and the other end butt fusion of two coils switches on.

3. The connecting structure for winding a coil without bending legs according to claim 1, wherein: the insulating body is I-shaped.