JPH0446380Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention is applicable to chargers and AC converters that convert alternating current to direct current.
This article relates to an AC plug in a power supply device such as an adapter, and specifically relates to the configuration of the connection part of the AC plug.

[Prior art]

Conventionally, the connection configuration of an AC plug in a power supply device such as a charger or an AC adapter has been as shown in the main part perspective view of FIG. 3 and the exploded perspective view of FIG. 4. That is, as shown in the figure, in the connection between the blade 2 fixed to the case body 1 by integral molding and the terminal 4 fixed to the circuit board 3,
The upper end 2a of the blade 2 protruding from the lower surface of the circuit board 3 is connected to a pair of contact pieces 4a, 4b which are in opposing contact with each other with elasticity, and this pair of contact pieces 4a, 4
contact pieces 4a, 4b of the terminal 4, which are connected to the connecting portion 4c forming the solder fixing portion 4d;
The blade 2 and the terminal 4 are connected by sandwiching them between the blades 2 and 4.

[Problems to be solved by the invention] However, in the conventional AC plug described above, since the outer side of the blade 2 is held between the contact pieces 4a and 4b of the terminal 4, the contact pieces 4a and 4b A space part for imparting elasticity to the blade 2 and a connecting part 4c for connecting the contact pieces 4a and 4b from the outside of the blade 2 are required, and the terminal 4 requires a lot of space on the circuit board 3, which is disadvantageous for miniaturization. In addition, there is a problem in that the wiring pattern is also restricted, and in addition, there is a risk that the clamping force of the contact pieces 4a, 4b will be weakened when the plate 2 and the contact pieces 4a, 4b are in contact with each other, and the terminal 4 may be Due to the complicated shape of the mold, there was a problem in that the mold could not be made in one piece and was costly.

Therefore, an object of the present invention is to provide an AC plug that solves the above problems.

[Means and actions for solving problems]

The present invention provides the above-mentioned AC plug with a U at one end.
A connecting portion between the blade and the circuit board is composed of a blade having a letter-shaped notch and a terminal having a pair of contact bent pieces and a fixing bent piece that are fitted and held in the notch of the blade. With this configuration, the terminal is connected with its contact bending piece being held between the notches of the blade, and the contact bending piece can be made into a simple shape.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

FIG. 1 is a partially cutaway perspective view of essential parts showing an assembled state, and FIG. 2 is a perspective view showing an exploded state.

As shown in the figure, the AC plug 10 according to the present invention includes:
Case body 11 whose connection part forms a power supply device, etc.
A blade 12 is integrally fixed to the blade 12 and has a notch 12a at one end, and a blade 12 is located within the notch 12a of the blade 12 that protrudes from the circuit board 13 during assembly, and is provided with elasticity so that it can be held between the notches 12a. a pair of contact bending pieces 14a bent outward at
14b, a fixing bent piece 14c for fixing to the circuit board 13 by soldering, and a connecting part 14d. A pair of contact bending pieces 14 which are bent outward by imparting elasticity to the terminal 14 at the notch portion 12a when the portion 12a is inserted through the circuit board 13 and protrudes.
A connecting portion is formed by sandwiching the terminals a and 14b, and the terminal 14 is fitted into and sandwiched by the notch 12a of the blade 12 to form an AC plug.

[Effect of idea]

Therefore, according to the AC plug of the present invention having the above-mentioned configuration, in the connection between the plug constituting the AC plug and the terminal provided on the circuit board, the contact bending piece of the terminal is held between the notch of the blade. It is possible to make contact conduction with the shape, and the space occupied by the terminal on the circuit board can be minimized, and space can be saved in circuit formation, and the pair of contact bending pieces are placed inside the notch of the blade. By installing the terminal, it is protected by the notch of the blade, which prevents the contact bending piece from being damaged when assembling other circuit components, etc., and also allows the terminal to have a simple shape. Moreover, the molding process can be carried out without using a single mold, thereby reducing the mold cost.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of main parts showing an embodiment of the present invention, FIG. 2 is an exploded perspective view, FIG. 3 is a perspective view of main parts showing a conventional example, and FIG. 4 is an exploded perspective view. 10...AC plug, 11...Case body, 12
. . . Blade, 12a . . . Notch, 13 .

Claims (1)

[Scope of utility model registration request] A blade with a U-shaped notch formed at one end;
An AC plug characterized in that a connection portion between the blade and a circuit board is formed by a terminal having a pair of contact bending pieces and a fixing bend piece, which are fitted and held in the notch of the blade.