JPH087607Y2 - Transformer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a transformer.

[Conventional technology]

Conventionally, this type of transformer includes a type formed by molding and a type in which a case is filled with resin as a type that can be automatically mounted by vacuum suction.

[Problems to be solved by the device]

In the above-mentioned conventional transformer, the case is put on the winding body portion, and the epoxy resin is required to be poured between the case and the winding body portion because of the solid state of the case, which is disadvantageous in that it takes man-hours. .

[Means for solving the problem]

The transformer of the present invention is a transformer in which a ferrite core or a lamination core is incorporated in a winding body in which a bobbin is wound.
A soft resin member case having a pair of protrusions and notches cut on both sides of the protrusions is provided, and the case is attached so that the protrusions are hooked on the winding body. There is.

〔Example〕

 Next, the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a developed perspective view showing development by the components of the present embodiment shown in FIG.

In FIG. 1 and FIG. 2, the transformer 10 of the present embodiment is incorporated in the bobbin 4 and a winding body 6 in which a winding is applied to the bobbin 4 and the tip of the winding is soldered to the surface mounting terminal 5. The two cores 7 to be provided, the core pressing spring 8 that presses the two cores 7 after the two cores 7 are incorporated in the winding body 6, and the two cores 7 that are pressed by the core pressing springs 8 are shown in FIG. As shown, the case 1 is configured to cover the entire surface except the surface mount terminals 5.

The case 1 has circular boss-shaped protrusions 2 on opposite sides of the case 1 and notches 3 on both sides of the circular boss-shaped protrusion 2, and the case 1 is formed as a whole as shown in FIG. When covered, the winding body 6 is pressed from both sides by the circular boss-shaped protrusions 2 on both sides of the case 1, and the notch 3 serves as a spring of the circular boss-shaped protrusion 2. As a result, the case 1 is fixed to the winding body 6, and the entire transformer 1 can be vacuum-sucked by the case 1 to be mounted on, for example, a printed circuit board.

[Effect of device]

As described above, according to the present invention, a pair of left and right protrusions on opposite surfaces without surface-mounting terminals are provided, and a soft resin member case is provided on both sides of each protrusion to form a case. Can be easily attached to the winding body, and can be automatically mounted on the printed board by vacuum suction.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG.
It is a development perspective view showing development by a component of this example shown in a figure. 1 ... Automatic mounting compatible case, 2 ... Circular boss-shaped protrusion, 3
... notches, 4 bobbins, 5 surface mount terminals, 6
...... Winding body, 7 ...... Core, 8 ...... Core retainer spring, 10 ......
Transformer.

Claims (1)

[Scope of utility model registration request] 1. A transformer in which a ferrite core or a lamination core is incorporated in a winding body formed by winding a bobbin, and a pair of left and right protrusions on opposite surfaces without surface-mounting terminals, and on both sides of this protrusion. A transformer comprising: a soft resin member case, each of which has a cut portion cut therein, and the case being attached so that the protrusion is hooked on the winding body.