JPH097701A - Ac inlet - Google Patents

Abstract

PURPOSE: To solve a problem resulting from a twist in an AC inlet installed on electronic equipment whose power code is detachable, and also to reduce cost by corresponding easily to different power specifications. CONSTITUTION: An inlet terminal 1 is to be a separate part divided from an AC inlet body 2, and only the inlet terminal 1 is mounted on an electric circuit board 3. Then, when electronic equipment is assembled, a part whose opening shape corresponds to a power specification of the AC inlet body 2 is mounted to the AC inlet body 2 to be assembled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an AC inlet used in an electronic device or the like in which a power cord is detachable from the main body of the apparatus.

[0002]

2. Description of the Related Art In recent years, AC inlets have come to be widely used for electronic devices and the like having a detachable power cord in order to make them convenient to carry or to correspond to destinations having different power source specifications. .

A conventional AC inlet will be described below. 3 is an external perspective view of a conventional AC inlet, and FIG. 4 is a configuration diagram showing a state in which the AC inlet is attached to an electronic device. In FIG. 3, reference numeral 11 is an inlet terminal made of a conductor and has a power cord connecting portion 1 at one end.
1a and an electric circuit board connecting portion 11b at one end.
Reference numeral 12 is an AC inlet body, which has an opening 12a into which the power cord 17 is inserted and a groove 12b for positioning and attaching to the body of the electronic device. In FIG. 4, 13 is an electric circuit board, 14 is a lower housing of the main body of the electronic device, and has a fitting portion 14a with the groove 12b of the AC inlet. Reference numeral 15 is an upper casing of the electronic device main body, 16 is a fastening screw for fastening the lower casing 14 and the upper casing 15 of the electronic device main body, 17 is a power cord, 17a is a power plug, 17
Reference numeral b is a power connector that is inserted into the opening 12a of the AC inlet.

With respect to the AC inlet configured as described above, the method of assembling the AC inlet and attaching it to the electronic equipment body will be described below. First, the inlet terminal 11 is fitted into the AC inlet body 12 to obtain a finished AC inlet. The electric circuit board connecting portion 12b of the AC inlet is inserted into a hole (not shown) provided in the electric circuit board 13, fixed by soldering, and electrically connected. After that, the electric circuit board 13 is attached to the lower housing 14 of the electronic device body. At this time, the groove 12b of the AC inlet is fitted into the fitting portion 14a of the lower housing 14. Then, the upper casing 15 is placed on the lower casing 14, and the lower casing 14 and the upper casing 15 are fastened with the fastening screws 16. When using electronic devices,
By inserting the power connector 17b of the power cord 17 into the opening 12a of the AC inlet, the power plug 1
The electric circuit board 7 is electrically connected to the electric circuit board 13 and power can be supplied to the electric circuit board 13.

[0005]

However, in the above-mentioned conventional structure, since the inlet terminal and the AC inlet body are integrally formed, the AC terminal is inserted when the power connector is inserted.
The stress due to the twist of the fitting part with the inlet terminal is directly A
It was transmitted from the C inlet terminal to the soldering part of the electric circuit board, leading to cracks in the board, floating of the foil, and the like. Further, in order to adapt the electric circuit board to countries with different power supply voltages, the shape of the opening for inserting the power supply connector of the AC inlet is different depending on the destination as shown in FIG. 5, for example.
For an integrated AC inlet, this requires changing the electrical circuit board. For this reason, there are problems that the production lot becomes small and that a large amount of inventory must be held.

In addition, since the AC inlet is fixed to the electric circuit board when the electric circuit board is incorporated in the electronic apparatus case, as shown in FIG. There is also a problem in that there is a large restriction on the method of attaching the electric circuit board, such that it is necessary to attach the external connection connector and another external connector cannot be embedded in the cabinet.

The present invention solves the above-mentioned problems of the prior art, and is an AC inlet which is strong against twisting, has a high degree of freedom in assembly, can easily cope with a change of destination, and is advantageous in terms of cost. The purpose is to provide.

[0008]

In order to achieve this object, the AC inlet of the present invention has a positioning insertion portion for positioning with an electric circuit board at one end, and a fitting portion for fitting with a power cord at the other end,
It is provided with a plurality of inlet terminals each having an elastic portion formed by bending or notching in a central portion, and an AC inlet main body that engages and supports the plurality of inlet terminals.

[0009]

With this structure, it is possible to provide an AC inlet that is resistant to twisting, has a high degree of freedom in assembly, can easily cope with a change in destination, and is advantageous in cost.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an external perspective view of an AC inlet of the present invention, and FIG. 2 is a configuration diagram showing a state in which the AC inlet is attached to an electronic device. In FIG. 1, reference numeral 1 denotes an inlet terminal made of a conductor, which has a power cord connecting portion 1a at one end, an electric circuit board connecting portion 1b at one end, a bent portion 1c having elasticity in a horizontal direction at an intermediate portion, and an elastic portion in a vertical direction. It has a bent portion 1d. Reference numeral 2 is an AC inlet body having an opening 2a into which the power cord 7 is inserted and a claw portion 2b which is coupled to the electronic equipment body. In FIG. 2, reference numeral 3 is an electric circuit board, and 4 is a lower housing of the electronic device body.
It has an opening 4a into which the C inlet is inserted and coupled. Reference numeral 5 is an upper casing of the electronic device main body, 6 is a fastening screw for fastening the lower casing 4 and the upper casing 5, 7 is a power cord, and 7a
Is a power plug, and 7b is a power connector to be inserted into the opening 2a of the AC inlet.

With respect to the AC inlet having the above structure, a method for mounting it on the electronic equipment body will be described below. First, the electric circuit board connecting portion 2b of the inlet terminal 1 is inserted into a hole (not shown) provided in the electric circuit board, fixed by soldering, and electrically connected. next,
The electric circuit board 3 is placed on the lower housing 4 of the electronic device body and fastened with the fastening screws 6 at the same time as the upper housing 5. After that, the AC inlet main body 2 is inserted and fitted into the opening 4 a on the side surface of the lower housing 4 while being fitted to the inlet terminal 1. After the insertion, the AC inlet body 2 is not detached by the claw portion 2b.

When the electric circuit board is made to comply with the power supply specifications of each country, the electric circuit board is produced in a lump, and when the electronic device is assembled, the type of the AC inlet body is selected.

When using electronic equipment, the power cord 7
By inserting the power connector 7b into the opening 2a of the electronic apparatus body 2, the power plug 7a is electrically connected to the electric circuit board 3 and power can be supplied to the electric circuit board 3.

When the power connector 7b is inserted into the opening 2a,
Alternatively, when a load is applied after insertion, the bent portion 1c bends in the left-right direction and the bent portion 1d bends in the up-down direction to absorb stress.

Although the stress absorbing portion is bent in this embodiment, it may have a notched shape, and any structure having elasticity and capable of absorbing stress may be used.

As described above, according to this embodiment, by providing the inlet terminal with the bent portion for absorbing stress,
It is resistant to twisting, easy to assemble, and can be adapted to different power supply specifications.

[0018]

As described above, according to the present invention, one end has a positioning insertion part for positioning with an electric circuit board, the other end has a fitting part for a power cord, and the central part has an elastic part by bending or notching. By having a plurality of formed inlet terminals and an AC inlet body that engages with and supports the plurality of inlet terminals, it is resistant to twisting, has a degree of freedom in assembly, and is easy to change destinations. It is possible to realize an AC inlet that is compatible with the above and has a merit in cost.

[Brief description of drawings]

FIG. 1 is an external perspective view of an AC inlet according to an embodiment of the present invention.

FIG. 2 is a configuration diagram showing a state in which an AC inlet according to an embodiment of the present invention is attached to an electronic device.

FIG. 3 is an external perspective view of a conventional AC inlet.

FIG. 4 is a configuration diagram showing a state in which a conventional AC inlet is attached to an electronic device.

FIG. 5 is an external perspective view of a conventional AC inlet having a different opening shape.

[Explanation of symbols]

 1 inlet terminal 1c bent portion 1d bent portion 2 AC inlet body 2a opening 3 electric circuit board 4 lower housing 5 upper housing 7 power cord

Claims (2)

[Claims] 1. A plurality of inlet terminals each having an insertion portion for positioning with an electric circuit board at one end, a fitting portion for a power cord at the other end, and an elastic portion formed by bending or notching at an intermediate portion. And an AC inlet body that engages with and supports the plurality of inlet terminals.
C inlet. 2. A plurality of inlet terminals are attached to an electric circuit board, and then an AC inlet main body is engaged with the plurality of inlet terminals so that an opening shape of a power cord insertion opening is formed when the electric circuit board is attached to the apparatus main body. AC characterized by being switched to a different AC inlet
Inlet.