Structure of magnetic inductive coil module

Abstract

A coil module includes a first coil set; a second coil set, including a first coil body, a second coil body and an insulative separator disposed between the first coil body and the second coil body, the separator having an adopting hole, the first coil body having an open winding surrounding the adapting hole and fixed on a side of the separator, the second coil body having an open winding surrounding the adapting hole and fixed on another side of the separator; and a coil base sheathing the second coil set with exposing the adopting hole. The first coil set surrounds the adopting hole and is fixed on the coil base to form a coil module.

Claims

1. A magnetic inductive coil module comprising: a first coil set; a second coil set, comprising an independent first coil body, an independent second coil body and an insulative separator disposed between the first coil body and the second coil body, the separator having an adopting hole, the first coil body having an open winding surrounding the adapting hole and fixed on a side of the separator, the winding having two ends which separately serve as a first contact end for connecting with an external circuit and a first connecting end connected with the second coil body, the second coil body having an open winding surrounding the adapting hole and fixed on another side of the separator, and the winding having two ends which separately serve as a second contact end for connecting with the external circuit and a second connecting end connected with the first coil body; and a coil base, sheathing the second coil set with exposing the adopting hole, the first contact end of the first coil body and the second contact end of the second coil body; wherein the first coil set surrounds the adopting hole and is fixed on the coil base to form a coil module, the first connecting end is extended with a first joint portion toward the second connecting end, and the separator is formed with a through hole corresponding to the first joint portion for being inserted by the first joint portion to be in contact with the second connecting end.

2. The magnetic inductive coil module of claim 1, wherein the first coil set is a conductive wire wound on the coil base.

3. The magnetic inductive coil module of claim 2, further comprising conductive pins disposed at an end of the coil base, which is located away from the first contact end and the second contact end.

4. A magnetic inductive coil module comprising: a first coil set; a second coil, set, comprising an independent first coil body, an independent second coil body and an insulative separator disposed between the first coil body and the second coil body, the separator having an adopting hole, the first coil body having an open winding surrounding the adapting hole and fixed on a side of the separator, the winding having two ends which separately serve as a first contact end for connecting with an external circuit and a first connecting end connected with the second coil body, the second coil body having an open winding surrounding the adapting hole and fixed on another side of the separator, and the winding having two ends which separately serve as a second contact end for connecting with the external circuit and a second connecting end connected with the first coil body; and a coil base, sheathing the second coil set with exposing the adopting hole, the first contact end of the first coil body and the second contact end of the second coil body; wherein the first coil set surrounds the adopting hole and is fixed on the coil base to form a coil module, a positioning trough separately corresponding to either of the first coil body and the second coil body is formed on one of two opposite sides of the separator for separately positioning the first coil body and the second coil body.

5. The magnetic inductive coil module of claim 1, wherein a bending portion is disposed between the first joint portion and the first connecting end to make the first joint portion flexible.

6. A magnetic inductive coil module comprising: a first coil set; a second coil set, comprising an independent first coil body, an independent second coil body and an insulative separator disposed between the first coil body and the second coil body, the separator having an adopting hole, the first coil body having an open winding surrounding the adapting hole and fixed on a side of the separator, the winding having two ends which separately serve as a first contact end for connecting with an external circuit and a first connecting end connected with the second coil body, the second coil body having an open winding surrounding the adapting hole and fixed on another side of the separator, and the winding having two ends which separately serve as a second contact end for connecting with the external circuit and a second connecting end connected with the first coil body; and a coil base, sheathing the second coil set with exposing the adopting hole, the first contact end of the first coil body and the second contact end of the second coil body; wherein the first coil set surrounds the adopting hole and is fixed on the coil base to form a coil module, the separator is formed with a positioning hole for being passed by the second contact end.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a perspective view of the coil module of the invention;

(2) FIG. 2 is an exploded view of the second coil set of the invention;

(3) FIG. 3 is another exploded view of the second coil set of the invention;

(4) FIG. 4 is a cross-section view of the second coil set of the invention;

(5) FIG. 5 is a top view of the coil module of the invention;

(6) FIG. 6 is a cross-section view of FIG. 5 along line 6-6; and

(7) FIG. 7 is a schematic view of the coil module of the invention as a transformer.

DETAILED DESCRIPTION OF THE INVENTION

(8) The invention is a coil module, which can be used to serve as a magnetic inductive element such as a transformer (A) shown in FIG. 7.

(9) Please refer to FIGS. 1-6. The coil module of the invention includes a first coil set 1 and a second coil set 2. Take a transformer as an example, the first coil set 1 and the second coil set 2 can be deemed as a primary coil and a secondary coil of the transformer, respectively. The second coil set 2 includes an independent first coil body 20, an independent second coil body 21 and an insulative separator 3 disposed between the first coil body 20 and the second coil body 21.

(10) Each of the first coil body 20 and the second coil body 21 is made of conductive material and is a planar coil made by molding, pressing or other processes. The first coil body 20 has an open winding with two ends. One of the two ends is a first contact end 200 for connecting with an external circuit and the other end is a first connecting end 201 connected with the second coil body 21. The second coil body 21 has an open winding with two ends. One of the two ends is a second contact end 210 for connecting with the external circuit and the other end is a second connecting end 211 connected with the first coil body 20. Preferably, the first connecting end 201 is extended with a first joint portion 202 toward the second connecting end 211. A bending portion 203 is disposed between the first joint portion 202 and the first connecting end 201 to make the first joint portion 202 flexible.

(11) The separator 3 is made of insulative material and disposed between the first coil body 20 and the second coil body 21 for isolation. The separator 3 has an adopting hole 30 through which a core 5 of the transformer A passes (see FIG. 7). Preferably, a positioning trough 31 separately corresponding to either of the first coil body 20 and the second coil body 21 is formed on one of two opposite sides of the separator 3 for separately positioning the first coil body 20 and the second coil body 21. The separator 3 is formed with a through hole 32 corresponding to the first joint portion 202 for being inserted by the first joint portion 202 to be in contact with the second connecting end 211 and to be soldered. As a result, the first coil body 20 and the second coil body 21 can be fixed on the separator 3 in advance and connected with each other to form the second coil set 2. Preferably, the separator 3 is further formed with a positioning hole 33 for being passed by the second contact end 210 to enhance the connection between the first and second coil bodies 20, 21 and the separator 3.

(12) A coil base 4 is formed by insulative material sheathing the second coil set 2 with exposing the adopting hole 30, and the first contact end 200 of the first coil body 20 and the second contact end 210 of the second coil body 21 for connecting with an external circuit. At an end of the coil base 4, which is away from the first contact end 200 of the first coil body 20 and the second contact end 210 of the second coil body 21, conductive pins 40 are disposed in advance. A necked bar 41 is formed around the adapting hole 30. The first coil set 1 is fixed on the necked bar 41. In the shown embodiment, the first coil set 1 is wound by a conductive wire 10 which can be an enameled wire. The conductive wire 10 is wound on the necked bar 41. Two ends of the conductive wire 10 are separately connected to the conductive pins 40 for connecting with an external circuit.

(13) As shown in FIG. 7, the adopting hole 30 is inserted by the core 5 to form a transformer A.

(14) Such alterations, modifications, and improvements are intended to be part of this disclosure, and are intended to be within the spirit and the scope of the present invention. Accordingly, the foregoing description is by way of example only and is not intended to be limiting. The present invention is limited only as defined in the following claims and the equivalents thereto.