JP2001186751A - Power supply unit integrating receptacle and noise filter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power supply unit integrating a receptacle and a noise filter in which the space can be saved and the size can be reduced while enhancing insulation performance and safety. SOLUTION: The power supply unit integrating a receptacle and a noise filter comprises a noise filter 3 mounted on a substrate 2, a receptacle 4 mounted on the noise filter 3, a wiring system 5 for connecting the primary side of the noise filter 3 with the receptacle 4 and connecting an external circuit with the earth by means of a screw, and a cover 6 fixed to the substrate 2 while covering the wiring system 5 and the peripheral part of the receptacle 4 except the noise filter 3 and a plug fixing face.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply unit integrated with an outlet and a noise filter.

2. Description of the Related Art Conventionally, for example, a power supply unit having a noise filter for removing a noise component from an outlet for supplying power to an attached device and an external wiring line is incorporated in an automatic control panel, a sequencer, a computer device and the like. Have been.

However, in the case of the above-mentioned conventional power supply unit, the outlet and the noise filter are separately arranged in the power supply unit, and the necessary wiring is provided for each, so that the occupied space of each of the power supply units is occupied. If it is not possible to save space and reduce the size, and if the power is supplied from the outlet to another device via the noise filter, a large-capacity noise filter is required. There was a problem that. Further, in the case of the conventional power supply unit, the noise filter and the wiring system are not sufficiently insulated, and there is a problem in terms of insulation and safety. The present invention has been developed in view of the above circumstances, and provides an outlet and a noise filter-integrated power supply unit that can save space and reduce size, and are excellent in insulation and safety.

According to a first aspect of the present invention, there is provided a power supply unit integrated with an outlet and a noise filter, comprising: a noise filter mounted on a substrate; an outlet mounted on the noise filter; And a wiring system for connecting between the outlet and an external circuit and grounding. According to the present invention, the noise filter is mounted on the substrate, the outlet is mounted on the noise filter, and the noise filter is integrated and connected to the external circuit and the ground by a wiring system. The space occupied by the outlet can be saved, and the whole can be made compact. The power supply unit integrated with an outlet and a noise filter according to the invention according to claim 2 connects the noise filter mounted on the board, the outlet mounted on the noise filter, the primary side of the noise filter, and the outlet. A wiring system for connecting with an external circuit and ground by screws, the noise filter,
And a cover attached to the board so as to cover a peripheral portion of the outlet except for a plug mounting surface of the outlet and a wiring system. According to this invention, the same effects as those of the first aspect are exhibited, and the noise filter, the peripheral part of the outlet except for the plug mounting surface, and the wiring system are configured to be covered by the cover body. The insulation measures of the filter and the wiring system are sufficient, and a power outlet unit and a noise filter integrated power supply unit having excellent insulation and safety can be provided.

Embodiments of the present invention will be described below in detail. FIGS. 1, 2 and 3 show a power supply unit 1 in which an outlet 4 and a noise filter 3 according to an embodiment of the present invention are integrated, and the noise filter mounted on a rectangular flat board 2 is shown. 3, an outlet 4 mounted on the noise filter 3, a wiring system 5 for connecting the noise filter 3 and the outlet 4 and connecting an external circuit and ground,
It has a rectangular parallelepiped cover 6 attached to the board 2 so as to cover the peripheral part of the outlet 4 and the wiring system 5 excluding the plug attachment surface 4a. On the substrate 2, two primary terminals 11 and 12 of a screw fixing type (screw-in type using a screw 10) are provided on a primary side of the noise filter 3.
Screw-type ground terminals 13 are provided, each of which is connected to the noise filter 3 by a connection conductor 18. On the substrate 2, two secondary terminals 15 and 16 in the form of screws are provided on the secondary side of the noise filter 3,
These are each connected to the noise filter 3 by the connection conductor 19. Further, as shown in FIG. 4, the outlet 4 includes a pair of plug receiving terminals 21 and 22 and a ground receiving terminal 23, and the pair of plug receiving terminals 21 and 22 are connected by a pair of connection conductors 24. The primary terminals 11 and 12 are connected. The ground receiving terminal 23 is connected to the ground terminal 13 by a connection conductor 25. The cover body 6 is formed so as to cover the periphery of the outlet 4 and the wiring system 5 excluding the noise filter 3 and the plug mounting surface 4a.
That is, the outlet 4 is provided on the outer end face 6a of the cover body 6.
6d through which the plug mounting surface 4a of
The upper and lower end surfaces 6b, 6c in FIG.
Holes 6e for connecting external conductors to the primary terminals 11, 12, the ground terminal 13, and the secondary terminals 15, 16 respectively.
And a hole 6f. According to the power supply unit 1 according to the present embodiment having the above-described configuration, since the noise filter 3 and the outlet 4 are integrated, the space occupied by them is reduced, and the entire power supply unit 1 is reduced in space and size. Can be achieved. In addition, since the outlet 4 is covered with the cover 6 except for the plug mounting surface 4a, insulation measures are sufficient, and the conductive portion is not exposed, so that insulation and safety can be improved. The power supply unit 1 of the present embodiment is suitably applied to, for example, a power supply unit in an automatic control panel, a sequencer, a computer device, or the like.

According to the present invention described in detail above, the following effects can be obtained. According to the first aspect of the present invention, it is possible to provide a power supply unit integrated with a noise filter and a noise filter, in which a space occupied by the noise filter and the power outlet can be reduced, and the power supply unit integrated with the noise filter can be formed in a small size. According to the second aspect of the invention, the same effects as those of the first aspect of the invention are provided, and the noise filter, the peripheral part of the outlet except for the plug mounting surface, and the wiring system are configured to be covered by the cover body. Therefore, sufficient measures are taken to insulate the noise filter and the wiring system, and it is possible to provide an outlet and a noise filter integrated power supply unit that are excellent in insulation and safety.

[Brief description of the drawings]

FIG. 1 is an exploded side view showing an outlet and a noise filter integrated power supply unit according to an embodiment of the present invention.

FIG. 2 is a front view of the power supply unit integrated with the outlet according to the present embodiment with a cover body removed.

FIG. 3 is a side view showing an outlet and a noise filter integrated power supply unit according to the embodiment of the present invention.

FIG. 4 is a circuit diagram showing a connection state of a wiring system of the power supply unit integrated with the outlet and the noise filter according to the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Power supply unit 2 Substrate 3 Noise filter 4 Outlet 4a Plug mounting surface 5 Wiring system 6 Cover body 6a Outer end surface 6d Through hole 6e Drilled hole 10 Screw 11 Primary terminal 13 Ground terminal 15 Secondary terminal 18 Connection conductor 19 Connection conductor 21 Plug receiving terminal 23 Ground receiving terminal 24 Connection conductor 25 Connection conductor

Claims (2)

[Claims] 1. A noise filter mounted on a substrate, an outlet mounted on the noise filter, a primary side of the noise filter, and a wiring system for connecting between the outlets and connecting to an external circuit and ground. A power supply unit integrated with an outlet and a noise filter, characterized by having: 2. A noise filter mounted on a substrate, an outlet mounted on the noise filter, a primary side of the noise filter, and a connection between the outlets and a connection between an external circuit and ground by screws. An outlet, a noise filter-integrated power supply, comprising: a wiring system to be performed; and a cover body that is mounted on the board so as to cover the peripheral portion of the outlet except for the plug mounting surface of the noise filter and the outlet and the wiring system. unit.