JPS5826517Y2 - electronic parts equipment - Google Patents

Description

[Detailed description of the invention] This invention relates to an electronic component device in which circuit components such as a multi-voltage rectifier and a flyback transformer are housed in an insulating case and cast with an insulating material such as epoxy resin. provides an electronic component device in which a lead wire for a circuit component is housed in an insulating case and a lead terminal for connection to a peripheral circuit is housed in an insulating case.

Hereinafter, the present invention will be explained by taking a multi-voltage rectifier as an example.

A multivoltage rectifier generally used in the power supply section of a cathode ray tube in a television receiver has a circuit configuration as shown in Figure 1, and is composed of capacitors 1, 2, diodes 3, 4, 5, and a resistor 6. has been done.

Note that 7 is an input terminal, 8 is an output terminal, 9 is a focus output terminal, 10.11 is an extraction terminal for connection to peripheral circuit terminals 12.13, and 14 is a variable resistor.

Incidentally, such a multi-voltage rectifier has a structure in which the circuit components are housed in an insulating case and insulating material such as epoxy resin is cast, but the pull-out terminal 10 for connection to the peripheral circuit terminals 12 and 13 is .11, as shown in Fig. 2, the lead wire 15 of the capacitor 2 is passed through the pin serving rib 17 provided on the side surface of the insulating case 16 and connected to the terminal pin 18 at the tip of the pin standing rib 17. and solder 19.
A structure in which an insulating material 20 such as epoxy resin is cast into the insulating case 16 has been common.

However, with such a structure, the terminal pin 18 is required to pull out the terminal, which increases the material cost and adds the process of soldering the lead wire 15 of the capacitor 2 and the terminal pin 18. Further, the molding of the insulating case 16 is complicated due to the provision of the pin filling rib 17 on the side surface, which poses a problem in terms of reducing costs and improving workability.

The present invention solves these conventional problems, and will be described below with reference to FIGS. 3a and 3l) showing an embodiment of the present invention.

As shown in FIG. 3a, l), the multi-voltage rectifier according to the present invention connects the tip of the lead wire 15 at one end of the capacitor 2 to
The insulating case 16 is folded back to form a substantially U-shape around the positioning rib 21 which is partially cut out in the center of the open end surface of the insulating case 16, and the end of the folded tip is attached to the insulating case 1.
It is embedded in the insulating material 20 cast in 6,
A ring 22 formed by folding back the lead wire 15 of the capacitor 2 is exposed outside the insulating material 20.

That is, in the present invention, a ring 22 is formed at the tip of the lead wire 15 of the capacitor 2, and this is used as a terminal for connection to the peripheral circuit.
This eliminates the need for the pin stand rib 17 and the terminal pin 18, and also eliminates the need to solder the lead wire 15 of the capacitor 2 to the terminal pin 18, reducing material costs and improving workability. .

In addition, since the ends of the lead wires 15 are embedded in a cast insulating material 20 to maintain the insulation properties of the capacitor 2 and other circuit components, they have a certain degree of strength against external tensile forces. will have the following.

Furthermore, as shown in Figure 3, the connection of the lead wire 23 from the peripheral circuit can be easily done by winding the lead wire 15 around the ring 22 several times and soldering it 24, and is reliable in terms of strength. Improves sex.

Furthermore, for devices used at high voltages such as multi-voltage rectifiers, the connection terminals exposed to the outside are formed by folding back the lead wires 15 and have no corners, since there are no sharp parts. It is possible to obtain the advantage that there is no concentration of charge and that discharge to other parts is difficult.

As described above, the electronic component device according to the present invention not only has great effects in reducing material costs and improving workability, but also has easy connection with peripheral circuits and high reliability in terms of strength. At the same time, it is of extremely high practical value for devices used at high voltages, as it can prevent discharge due to charge concentration as much as possible.

[Brief explanation of the drawing]

Fig. 1 is an electric circuit diagram of a general multi-voltage rectifier, Fig. 2 is a sectional view showing the conventional structure of the main parts of the same device, and Fig. 3 a and l) are each an embodiment of the present invention. FIG. 3 is a cross-sectional view of the main structure of the multi-voltage rectifier as seen from the front and side. 2... Condenser (circuit component), 15...
... Lead wire, 16 ... Insulation case, 20.
...Insulating material, 22...Ring.

Claims (1)

[Scope of utility model registration request] A circuit component having a lead wire housed in an insulating case,
An insulating material is cast around the circuit component, and the tip of the lead wire of the circuit component is exposed outside the insulating material, and the tip is folded back and the end is buried in the insulating material. Electronic component equipment.