JPS6254906A - Power source - Google Patents

Abstract

PURPOSE:To connect input and output pins of a transformer and to eliminate soldering work and clamping work with screws by inserting an input connecting piece and an output piece into U-shaped projecting piece in a cover, with which a case is covered. CONSTITUTION:Components 13 which form a rectifier such as a transformer 12, a diode and a capacitor are contained in a case 11, and input leads 15 are led through a bushing to a cover 14. An input connecting piece 19 having a positioning recess 18 is soldered to the positioning recess 18. A cross slid 21 is formed at the piece 19 to connected with the input pin 20 of the transformer 12, and the slit 21 is recessed to readily insert the pin 20. The cover 14 made by inserting fixedly the pieces 19, an output piece 22 between opposed -shaped projecting pieces 24 is coated on the case 11.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a power supply device used for supplying power to electronic equipment such as audio equipment.

BACKGROUND OF THE INVENTION Conventionally, power supply devices of this type have configurations as shown in Figures 4 to 6. In FIG. 4, 1 is a case, and inside this case 1 are two transformers. Components 3 constituting a rectifier circuit such as diodes and capacitors are housed, and several recesses 4 are provided on one side of the opening end of the case 1 as shown in FIG. 6A and H, and screw holes are provided in the bottom of the recesses 4. 6 are provided one at a time, and are fixed with screws 8 through fixing holes 7 of the output piece 6, which will be described later.

Reference numeral 6 denotes an L-shaped output piece, which has a fixing hole 7 on one side and a groove 9 at its tip, around which the lead wire 1o from the transformer 2 is wound and connected by soldering.

Problems to be Solved by the Invention In such a conventional configuration, the lead wire 1o is required to connect the transformer 2 and the output piece 6, which requires winding, soldering, and fixing of the output piece 6 with the screw 8. In addition, the input lead wire connection required winding and soldering, which was inefficient and required a large number of components.

The present invention solves these problems, and aims to provide an inexpensive power supply device that has a small number of component parts, is easy to assemble, and is inexpensive. , the parts constituting the transformer and rectifier circuit are housed in the power supply case, and the input connection piece with the cross-shaped slit connected to the tip of the input lead wire and the output piece with the cross-shaped slit are connected to the case. A fixed cover is inserted and fixed between the matching U-shaped protrusions, and the cross-shaped slits of the input connection piece and output piece are inserted into the input and output pins of the transformer to connect them electrically and mechanically. It is.

Function: With this configuration, connection to the transformer can be simultaneously achieved by covering the input connection piece with the cross-shaped slit attached to the fixed piece inside the cover and the output piece on the case.

Embodiments In FIGS. 1, 2, and 3, reference numeral 11 is a case made of synthetic resin with an open top. Inside this case 11 are a transformer 12 and parts 13 such as diodes and capacitors constituting a rectifier circuit. The input lead wire 16 is drawn out to the cover 14 via the bushing 16.

On the core wire 17 at the tip of the input lead wire 15, an input connection piece 19 having a positioning recess 18 is soldered to the positioning recess 18. Further, the input connection piece 19 is provided with a cross-shaped slit 21 for connection to the input pin 20 of the transformer 12, and the cross-shaped slit 21 has a concave shape to facilitate insertion of the input pin 20.

22 is an output piece having a cross-shaped slit 23 like the input connection piece 19. These input connection pieces 19 and output pieces 2
The case 11 is covered with a cover 14 which is formed by inserting and fixing the two U-shaped protrusions 24 between the two facing U-shaped protrusions 24.

The input connection piece 19 and the core wire 17 may be connected by pressure welding or welding.

Effects of the Invention As described above, according to the present invention, the input pin and output pin of the transformer can be connected by inserting the input connection piece and the output piece between the U-shaped projections in the cover and covering the case. ,or,
There is no need for soldering work or fixing work with screws, there are only a few components, and the assembly is easy to assemble, which is advantageous in terms of cost.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a power supply device according to an embodiment of the present invention, FIG. 2 is a sectional view of the power supply device according to an embodiment of the present invention,
3A and 3B are perspective views of an input connection piece and a U-shaped protrusion according to an embodiment of the present invention, FIG. 4 is a perspective view of a conventional power supply device, and FIGS. 5A and 5B are perspective views of a conventional power supply device. FIG. 3 is a perspective view showing an output piece of the device. 11... Case, 12... Transformer,
13...One part, 14...Cover, 15
...Input lead wire, 16...Bushing, 17...Core wire, 18...Recess, 1
9...Input connection piece, 20...Input bin, 21...Cross-shaped slit, 22...
Output piece, 23...Cross-shaped slit, 24...
...U-shaped protrusion. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 3
figure

Claims (1)

[Claims] The parts that make up the transformer and rectifier circuit are housed in a case, and the input connecting piece, which has a cross-shaped slit with spring properties, is connected to the tip of the input lead wire, and the output piece, which also has a cross-shaped slit, is facing towards the case. A power supply made by inserting and fixing a cover between the matching U-shaped protrusions, inserting the cross-shaped slits of the input connection piece and output piece into the input and output pins of the transformer, and connecting them electrically and mechanically. Device.