JPH0520282U - Plug structure in electrical equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] To connect the plug and the internal electric circuit with one touch, to reduce the size of electric equipment, and to increase the strength and reliability of the plug. [Structure] Insert plug 13 into connecting piece 14 and connecting terminal 15
And the blade are formed into a blade-like structure as a whole, and the insertion piece 14 is protruded to the outside of the case 10, and the connection terminal 15 is protruded to the inside of the case 10. The connector 26 is attached to the printed circuit board 23 of the housed internal electric circuit 22 via the lead 30, and the connector 26 is inserted into the connection terminal 15 to connect the plug 13 to the printed circuit board 23 of the internal electric circuit 22. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 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]

[Prior Art]

 In the related art of the connection device between the plug and the internal electric circuit in this type of direct plug-in type electric device, the plug 2 is attached to the 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 a wire 6 so as to be electrically conductive.

[0003]

[Problems to be solved by the device]

 As described above, in the conventional technique, the plug 2 and the printed circuit board 4 of the internal electric circuit 3 are connected by the electric wire 6, so that there is a problem that the connection workability is poor. Further, in the conventional technique, it is necessary to secure a space for soldering the electric wire 6, so that the plug 2 cannot be brought close to the one end side in the case 1, so that the mounting position of the plug 2 is restricted and the electric device There was also the problem of hindering the miniaturization of the.

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

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned 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 a direct plug-in type electric device in which the plug 23 is connected to the plug 23, the plug 13 is integrally formed with an elongated plate-shaped insertion piece 14 and a substantially rod-shaped connection terminal 15 that is eccentrically projected at one end of the insertion piece 14. It is formed as an integrated structure and is formed in 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 displaced inside the case 10 toward the case side plate 11a. , The plug 13 is attached to the case 10, and the lead 30 is attached to the printed circuit board 23 of the internal electric circuit 22. Via attaching the connector 26, plug connector 26 to the connection terminals 15 to connect the printed circuit board 23 of the plug 13 and the internal electric circuit 22.

[0006]

[Action]

 In the present invention, a plug 13 having a plug 14 and a connection terminal 15 is attached to the case 10. On the other hand, a connector 26 is attached to the printed circuit board 23 of the internal electric circuit 22 housed in the case 10 via leads 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 plug 13 and the printed circuit board 23 of the internal electric circuit 22 can be connected with one touch.

In the present invention, as described above, the connector 26 is inserted into the connection terminal 15 of the plug 13 to connect the plug 13 and the printed circuit board 23 of the internal electric circuit 22. A space for soldering an electric wire that connects the printed circuit board 23 with the internal electric circuit 22 is not required. Therefore, the plug 13 can be attached to the one end side of the case 10 so as not to 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 integrated structure in which the insertion piece 14 and the connection terminal 15 are integrated, and is formed into 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]

【Example】

 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 a fragmentary perspective view showing a partially broken view, FIG. 2 is a vertical sectional side view of an essential part, and FIG. It is a sectional view taken along line A-.

The electric equipment of the embodiments shown in these figures is like an AC adapter, and as shown in FIG. 1, a case 10 having a two-part structure and an internal electric power for converting alternating current into direct current, for example. And a circuit 22.

The case 10 is formed in a box shape by combining one half 11 and the other half 12.

As shown in FIG. 1, a connection terminal 15 of the plug 13, ribs 16 and 17, and a hooking portion 18 for hooking the other half 12 of the case 10 are provided in the one half 11 of the case 10. It is 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. There is. Further, 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 11 of the case 10, and the connection terminal 15 to the inside of the half 11 of the case 10, and at the bottom of the half 11 of the case 10. , Are installed in parallel at a predetermined interval from each other. Further, the plug 13 is mounted so that the connection terminal 15 thereof is projected to a position as close to the side plate 11a side as one end of the half 11 of the case 10. This is to effectively secure the internal space in the case 10. The connection terminal 15 of the plug 13 constitutes a part of the connection device of the plug 13 and the internal electric circuit 22 according to the present invention.

As shown in FIG. 1, the other half 12 of the case 10 is provided with ribs 19, ridges 20 and the like. The protrusion 20 and the edge portion of the other half 12 of the case 10 on the one end side are fitted into the engaging 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 via a printed circuit board 23, predetermined electric components 25 mounted on the printed circuit board 23, and electric wires which are leads 30. And a connector 26 that has been formed. 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 is provided with an insertion hole 27, a conductor 28, and a clearance groove 29. 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 in 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 connection terminal is connected. It is attached so as to contact the outer periphery of 15. Further, 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 connected to the print substrate 23. The connector 26 is connected to one end of the print substrate 23 via the electric wire. The connector 26 constitutes a part of the connecting device according to the present invention.

In order to assemble the internal electric circuit 22 and the one half 11 and the other half 12 of the case 10 and to connect the plug 13 and the connector 26, the following is done.

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 projecting inside the half 11 of the case 10, and the sleeve-shaped conductor is provided on the outer periphery of the connection terminal 15. 28 is brought into contact, and the plug 13 and the printed circuit board 23 of the internal electric circuit 22 are connected via the contact between the connection terminal 15 of the plug 13 and the conductor 28 of the connector 26.

Then, a hooking portion 18 provided on one end side of the one half portion 11 of the case 10 is fitted with a fitting groove 21 formed on one end side of the other half portion 12 of the case 10. This part is used as a hinge to cover the other half 12 of the case 10 by rotating the other half 12 in a closing direction, and the peripheral edge of the other half 12 is snap-fitted to the peripheral edge of the one half 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 having the insert piece 14 and the connecting terminal 15 of the integral structure and attached to the one half 11 of the case 10. 13 and a connector 26 connected to the printed circuit board 23 of the internal electric circuit 22 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 portion 11 of the case 10, and the connection terminal 15 is projected to the inside of the half portion 11 of the case 10. Further, the connector 26 is configured to have an insertion hole 27 to be inserted into the connection terminal 15 of the plug 13 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 according to this embodiment, the plug 13 and the printed circuit board 23 of the internal electric circuit 22 can be connected with one touch by simply inserting the connection hole 15 of the connector 26 into the connection terminal 15 of the plug 13. be able to.

Further, 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. Therefore, the wiring for connecting the plug 13 and the printed circuit board 23 of the internal electric circuit 22 is not required to be soldered, and therefore the space for the connection work is not required. As a result, the connection terminal 15 of the plug 13 can be made to project to a position closer to the one end portion side, as a position that does not get in the way inside the one half portion 11 of the case 10. As a result, it is possible to eliminate unnecessary space and reduce the size of the entire electric device.

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

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

[0025]

[Effect of the device]

 As described above, the plug 13 having the insertion piece 14 and the connection terminal 15 is attached to the case 10, and 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. 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, so that the printed circuit board 23 of the plug 13 and the internal electric circuit 22 is connected. There is an effect that can be connected with one-touch.

Further, in the present invention, the plug 26 and the printed circuit board 23 of the internal electric circuit 22 are connected by inserting the connector 26 into the connection terminal 15 of the plug 13, so that the plug 13 and the internal electric circuit are connected. A space for soldering an electric wire connecting the printed circuit board 23 of 22 is not required, and the connection terminal 15 of the plug 13 can be attached to the position of one end side in the case 10 that is not in the way, resulting in an electric device. There is an effect that the overall size 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 is increased and the reliability in use is improved. There is also an effect to be obtained.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention with a part thereof broken away.

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

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

FIG. 4 is a cross-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 in 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.