JPH09260164A - Electronic component - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a low-cost choke coil suitable for mass production by reducing the number of parts comprising holders and thus making easier the control of parts. SOLUTION: A choke coil is provided with separated holders 1a and 1b with recessed parts 4 for holding and fixing back parts 3 of separated magnetic cores 2. A recessed part 8 and a projected part 9 are provided for positioning at the joint surface 20 of the holders 1a and 1b. Notches 13 for pulling out leads 12 of windings 5 and projected parts and nails for engaging with each other are formed on the sides of the holders 1a and 1b. Holes for mounting and fixing are also provided in the bottom of the holders 1a and 1b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electronic parts such as transformers and choke coils used in consumer electronic devices and industrial electronic devices, and more particularly to the structure of a holder used therein.

[0002]

2. Description of the Related Art A conventional choke coil for electronic parts will be described with reference to the drawings. As shown in FIG. 3, the conventional choke coil has two fixing plates 15 made of an insulating material and having through holes at both ends, and a metal screw having a male screw at one end.
It is composed of a fixed rod 16 and two nuts 17. The fixed rod 16 is penetrated through the through hole of the fixed plate 15, and the back portion 19 of the split magnetic core 18 is sandwiched by the fixed plate 15, and the nut 17 It was a structure that was clamped by and clamped.

[0003]

As described above, the conventional choke coil has three types of parts constituting the holder.
There is a problem that there are many pieces, the number of parts is large, it is difficult to manage, and it takes time to assemble.

Further, the back portion 1 of the fixed plate 15 and the split type magnetic core 18
Since the positioning with 9 is difficult and the structure of tightening with the nut 17 causes variations in tightening work, the quality is likely to be unstable, and there is a problem that it is not suitable for mass production.

The present invention eliminates these drawbacks by providing:
An object of the present invention is to provide a low-cost electronic component having a structure suitable for mass production by reducing the number of components constituting the holder to facilitate the management of the components.

[0006]

DISCLOSURE OF THE INVENTION The present invention is provided with a split type magnetic core and a winding which is laminated and wound in a cylindrical shape, and whose end portion is shaped like a figure 8 and is again laminated and wound in a cylindrical shape. In an electronic component consisting of a holder for fixing the bobbin, the holder is
It is a split type having a recess for holding and fixing the back of the split type magnetic core, and a fitting portion for positioning is provided on each coupling surface, and two side faces parallel to the magnetic legs of the split type magnetic core are provided. Is an electronic component characterized by forming a notch for drawing out a lead wire of the winding and a divided engaging mechanism of the holders, and further comprising a fixed mounting hole at a bottom portion of the holder. ..

With the structure of the present invention, the magnetic core can be easily inserted by inserting the back of the split magnetic core into the recess formed in the holder and engaging the two divided holders with each other. Since it can be fixed, the time required for assembly can be reduced, the number of parts can be reduced, the cost can be reduced, and the parts can be easily managed.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view showing a choke coil of the present invention. FIG. 2 is an external perspective view showing the choke coil of the present invention.

As shown in FIGS. 1 and 2, the choke coil of the present invention uses split type holders 1a and 1b.
The spine 3 of the split magnetic core 2 is inserted into the recesses 4 of the holders 1a and 1b to hold and fix the magnetic core 2. After that, the winding 5 which is wound in a cylindrical form and wound again in the shape of a figure 8 and which is wound again in a tubular form is formed by a bobbin 6 having an insulating partition plate formed in the center.
By inserting the bobbin 6 into the magnetic leg 7 of the magnetic core 2 and fitting the fitting concave portion 8 and the convex portion 9 formed on the coupling surface 20 of each holder 1a, 1b. The holders 1a and 1b can be positioned.

Next, the engaging mechanism claws 10 formed on the two side surfaces of the holders 1a and 1b parallel to the magnetic legs 7 of the magnetic core 2.
The magnetic core 2 is securely fixed by engaging the and the convex portion 11 with each other.

Further, the lead wire 12 of the winding 5 is formed by the notch 13 provided on the same surface of the holder 1a, 1b where the claw 10 and the groove 11 are formed.
It can be pulled out of a and 1b.

Further, the choke coil can be easily fixed to the device by using screws in the fixing mounting holes 14 of the holders 1a and 1b through a printed circuit board or the like. In this example, the bobbin was made of polybutylene terephthalate (PBT) and the winding wire diameter was 2 mm.

[0014]

As described above, according to the electronic component of the present invention, the number of components is small, the cost is low, the assembly is easy, and the mass productivity is improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a choke coil according to the present invention.

FIG. 2 is an external perspective view of a choke coil according to the present invention.

FIG. 3 is an external perspective view of a conventional choke coil.

[Explanation of symbols]

 1a, 1b Holder 2,18 (Split type) Magnetic core 3,19 Back part 4,8 (Fit part) Recessed part 5 Winding 6 Bobbin 7 Magnetic leg 9 Convex part 10 (Engagement mechanism) Claw 11 Convex part 12 Drawer Wire 13 Notch 14 Fixing mounting hole 15 Fixing plate 16 Fixing rod 17 Nut 20 Coupling surface

Claims (1)

[Claims] 1. A holder for fixing a split type magnetic core and a bobbin which is wound by laminating and winding in a tubular shape, and the end portion of which is shaped like a figure 8 and which is wound again by laminating in a tubular shape. In the electronic component, the holder is a split type having a recess for holding and fixing the back part of the split type magnetic core, and a fitting portion for positioning is provided on each coupling surface, and the magnetic core of the split type magnetic core is provided. A notch for drawing out the lead wire of the winding wire and a divided engaging mechanism for the holders are formed on two side surfaces parallel to the legs, and a fixing attachment hole is further provided at the bottom of the holder. An electronic component characterized by.