JPH0743981Y2 - Plug structure in electrical equipment - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting device between a plug and an internal electric circuit in an electric device such as a direct plug-in type AC adapter.

[0002]

2. Description of the Related Art In the prior art of this type of connecting device for a plug and an internal electric circuit in a direct plug-in type electric device, a plug 2 is attached to a case 1 as shown in FIG. On the other hand, inside the case 1, an internal electric circuit 3 in which an electric component 5 is mounted on a printed circuit board 4 is housed. Then, the plug 2 and the printed circuit board 4 are connected by an electric wire 6 so as to be electrically conductive.

[0003]

As described above, in the prior art, since the plug 2 and the printed circuit board 4 of the internal electric circuit 3 are connected by the electric wire 6, there is a problem in connection workability. Further, in the prior art, since it is necessary to secure a space for soldering the electric wire 6, the plug 2 cannot be brought close to the one end side in the case 1, and therefore the plug 2
There is also a problem in that the mounting position of is restricted, which hinders the miniaturization of electric devices.

The object of the present invention is to connect the plug and the printed circuit board of the internal electric circuit with one touch, further reduce the size of the electric equipment, and increase the strength of the plug to improve the reliability. An object is to provide a plug structure in a plug-in type electric device.

[0005]

To achieve the above object, in the present invention, a plug 13 is fixed to a case 10, and an internal electric circuit 22 having an electric component 25 mounted on a printed circuit board 23 is housed inside the case 10. In the direct plug-in type electric device in which the plug 13 and the printed circuit board 23 are connected to each other, the plug 13 has a long and narrow plate-like insertion piece 14 and a substantially rod-like shape that is offset and protrudes at one end of the insertion piece 14. Is integrally formed with the connection terminal 15 and is formed into a blade shape as a whole, the insertion piece 14 is projected to the outside of the case 10, and the connection terminal 15 is inside the case 10 The plug 13 is attached to the case 10 by projecting it to a position deviated to the side plate 11a side, and the plug of the internal electric circuit 22 is attached. Attaching a connector 26 via a lead 30 to the substrate 23, insert the connector 26 into the connection terminal 15 connects the printed circuit board 23 of the plug 13 and the internal electric circuit 22.

[0006]

In the present invention, the case 10 is provided with the plug 13 having the insertion piece 14 and the connection terminal 15.
On the other hand, the connector 26 is attached to the printed circuit board 23 of the internal electric circuit 22 housed in the case 10 via the lead 30. Therefore, when connecting the plug 13 and the printed circuit board 23 of the internal electric circuit 22, the connector 26 is inserted into the connection terminal 15 of the plug 13. As a result, the printed circuit board 2 of the plug 13 and the internal electric circuit 22 is
3 can be connected with one touch.

In the present invention, as described above, the plug 26 is connected to the printed circuit board 23 of the internal electric circuit 22 by inserting the connector 26 into the connection terminal 15 of the plug 13, so that the plug 13 and the internal circuit are connected. A space for soldering an electric wire connecting the printed circuit board 23 of the electric circuit 22 is not necessary. Therefore, it is possible to attach the plug 13 to the one end side in the case 10, which is a position where it does not get in the way. As a result, it is possible to reduce the size of the entire electric device.

Moreover, in the present invention, the plug 13 has an integral structure in which the insertion piece 14 and the connection terminal 15 are integrated and is formed in a blade shape as a whole. As a result, the strength of the plug 13 can be increased and the reliability in use can be improved.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show an embodiment of the present invention. FIG. 1 is an exploded perspective view with a part broken away, FIG. 2 is a vertical sectional side view of a main portion, and FIG. 3 is A- of FIG. It is an A line sectional view.

The electrical equipment of the embodiments shown in these figures is AC
As shown in FIG. 1, it is like an adapter, and is configured by including a case 10 having a bisection structure and an internal electric circuit 22 for converting alternating current into direct current, for example.

The case 10 has a first half 11 and a second half 1.
It is formed in a box shape by combining 2 and.

As shown in FIG. 1, the one half 11 of the case 10 includes a connecting terminal 15 of a plug 13, a rib 16,
17 and a hook 1 for hooking the other half 12 of the case 10
8 etc. are provided.

As shown in FIGS. 2 and 3, the plug 13 is formed in an integral structure in which an elongated plate-shaped insertion piece 14 and a rectangular rod-shaped connection terminal 15 protruding at one end thereof are integrated. . Moreover, the plug 13 is formed in a blade shape as a whole. Further, the plug 13 projects the insertion piece 14 to the outside of the half portion 11 of the case 10, and the connection terminal 15 connects the half portion 1 of the case 10.
Two pieces are attached in parallel to each other on a bottom surface of one half portion 11 of the case 10 at a predetermined interval. Further, the plug 13 has its connection terminal 15
Is attached so as to project to a position as close as possible to the side plate 11a side on the one end side in the half part 11 of the case 10. This is to effectively secure the internal space in the case 10. Then, the connection terminal 1 of the plug 13
Reference numeral 5 is a part of a connecting device for connecting the plug 13 and the internal electric circuit 22 according to the present invention.

In the other half 12 of the case 10,
As shown in FIG. 1, ribs 19, ridges 20 and the like are provided. The protrusion 20 and the end edge portion of the other half 12 of the case 10 on the one end side are fitted into a fitting groove 21 that fits into the hooking portion 18 provided at one end of the one half 11 of the case 10. Is formed.

As shown in FIG. 1, the internal electric circuit 22 is connected to the printed circuit board 23 through a printed circuit board 23, predetermined electric components 25 mounted on the printed circuit board 23, and electric wires serving as leads 30. And a connector 26. The printed circuit board 23 is formed with an escape groove 24 for escaping the connection terminal 15 of the plug 13 attached to the half 11 of the case 10. The printed circuit board 23 is mounted on a support (not shown) provided inside the one-half portion 11 of the case 10 and is supported in a lifted floor type.

As shown in FIGS. 1 to 3, the connector 26 has an insertion hole 27, a conductor 28, and a clearance groove 29.
And are provided. Two insertion holes 27 are provided at intervals corresponding to the connection terminals 15 of the two plugs 13, and are inserted into the connection terminals 15. The conductor 28 is formed into a sleeve type having a slit and is fixed in each insertion hole 27. When the insertion hole 27 of the connector 26 is inserted into the connection terminal 15 of the plug 13, the conductor 28 is It is attached so as to contact the outer circumference. Also, one end of an electric wire, which is a lead 30, is connected to the end of the conductor 28. The other half of the electric wire is the printed circuit board 23.
It is connected to the. The connector 26 is connected to one end of the printed circuit board 23 via the electric wire.
The connector 26 constitutes a part of the connecting device according to the present invention.

The one half 11 and the other half 12 of the case 10 and the internal electric circuit 22 are assembled and the plug 1
3 and the connector 26 are coupled to each other as follows.

First, the internal electric circuit 22 is positioned and housed in the first half 11 of the case 10.

Next, the insertion holes 27 of the connector 26 are inserted into the two connection terminals 15 of the plug 13 protruding inside the half 11 of the case 10 to connect the connection terminal 1
The sleeve-shaped conductor 28 is brought into contact with the outer periphery of the plug 5, and the plug 1
The printed circuit board 2 of the plug 13 and the internal electric circuit 22 is connected via the contact between the connection terminal 15 of FIG.
Connect with 3.

Next, a fitting groove 21 formed on one end side of the other half portion 12 of the case 10 is hooked on a hooking portion 18 provided on an end edge portion of the one half portion 11 of the case 10 on the one end side. This portion is used as a hinge to cover the other half portion 12 of the case 10 by rotating the other half portion 12 in the closing direction, and the peripheral edge portion of the other half portion 12 is snap-fitted to the peripheral edge portion of the one half portion 11 of the case 10. After that, the one half 11 and the other half 12 of the case 10 are joined by a set screw (not shown).

This embodiment of the connecting device according to the present invention has, as described above, the plug 13 having the integrally formed plug-in piece 14 and the connecting terminal 15 and attached to the half 11 of the case 10. The printed circuit board 23 of the internal electric circuit 22 is provided with a connector 26 connected via an electric wire which is a lead 30. The insertion piece 14 of the plug 13 is projected to the outside of the half 11 of the case 10, and the connection terminal 15 is projected to the inside of the half 11 of the case 10. Further, the connector 26 is the plug 13
It has an insertion hole 27 to be inserted into the connection terminal 15 and a sleeve-type conductor 28 that contacts the outer periphery of the connection terminal 15. Further, the conductor 28 is connected to the printed board 23 via the electric wire. Therefore, in the connection structure in this embodiment, the plug 13 and the printed circuit board 23 of the internal electric circuit 22 can be connected with one touch only by inserting the connection hole 15 of the connector 26 into the connection terminal 15 of the plug 13. it can.

In this embodiment, as described above, the plug 13 and the printed circuit board 23 of the internal electric circuit 22 are connected by inserting the insertion hole 27 of the connector 26 into the connection terminal 15 of the plug 13. Printed circuit board 23 of plug 13 and internal electric circuit 22
It is not necessary to solder the wiring for connecting with each other, and therefore the space for the connection work is not required. As a result, the connection terminal 15 of the plug 13 is connected to the half 1 of the case 10.
It can be projected to a position close to the one end side, as a position that does not interfere with the inside of 1. This makes it possible to omit a wasteful space and reduce the size of the entire electric device.

Further, in this embodiment, the entire plug 13 is formed into a blade shape. Thereby, the strength of the plug 13 can be increased, and the reliability in use can be improved.

The present invention is characterized by the connection structure between the plug 13 and the internal electric circuit 22, and the structure of the electric equipment such as the AC adapter is not limited to the embodiment shown in the drawings.

[0025]

As described above, the plug 13 having the insertion piece 14 and the connection terminal 15 is attached to the case 10, and the lead 30 is inserted into the printed circuit board 23 of the internal electric circuit 22 housed in the case 10. Connector 26 to attach the plug 13 and the printed circuit board 23 of the internal electric circuit 22 to each other.
Since the connector 26 is inserted into the connector, the plug 13 and the printed circuit board 23 of the internal electric circuit 22 can be connected with one touch.

Further, in the present invention, the connection terminal 1 of the plug 13
Since the plug 13 and the printed circuit board 23 of the internal electric circuit 22 are connected by inserting the connector 26 into the connector 5, the electric wire connecting the plug 13 and the printed circuit board 23 of the internal electric circuit 22 is soldered. Space is not required, and the connection terminal 15 of the plug 13 can be attached to the case 1
As a result of being able to be attached close to the position on the one end side that does not disturb in 0, there is an effect that the size of the entire electric device can be reduced.

Moreover, in the present invention, since the plug-in piece 14 and the connection terminal 15 are integrally formed and the entire plug 13 is formed into a blade shape, the strength of the plug 13 can be increased and the reliability in use can be improved. There is also an effect.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a part of the present invention in a partially cutaway manner.

FIG. 2 is a vertical sectional side view of an essential part of the present invention.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a sectional view showing a conventional technique.

[Explanation of symbols]

 10 case 11 half of case 12 other half of case 13 plug 14 plug insertion piece 15 plug connection terminal 22 internal electric circuit 23 printed circuit board of internal electric circuit 25 electric component of internal electric circuit 26 connector 27 for inserting connector Hole 28 Sleeve type conductor 30 Lead

Claims (1)

[Scope of utility model registration request] 1. A direct connection in which a plug 13 is fixed to a case 10, an internal electric circuit 22 having an electric component 25 mounted on a printed circuit board 23 is housed inside the case 10, and the plug 13 and the printed circuit board 23 are connected to each other. In the plug-in type electric device, the plug 13 is formed into an integral structure in which an elongated plate-shaped insertion piece 14 and a substantially rectangular rod-shaped connection terminal 15 that is eccentrically projecting at one end of the insertion piece 14 are integrated. In addition, it is formed into a blade shape as a whole, the insertion piece 14 is projected to the outside of the case 10, and the connection terminal 15 is projected to a position inside the case 10 and displaced to the case side plate 11a side, and The connector 26 is attached to the printed circuit board 23 of the internal electric circuit 22 via the lead 30, and the connector 2 is connected to the connection terminal 15. 6. A plug structure in an electric device, wherein 6 is inserted and the plug 13 and the printed circuit board 23 of the internal electric circuit 22 are connected.