JP2021068650A - AC adapter device - Google Patents

Abstract

To provide an AC adapter device for a luminaire for a desk that can realize space saving.SOLUTION: An AC adapter device 1 for a luminaire 3 comprises: a housing 5 attached to a desk 2, and housing an AC/DC conversion circuit 15; an AC wire 6 comprising an AC cord 6a protruding from the housing 5, and a plug 6b connected to the AC/DC conversion circuit 15 by the AC cord 6a; a DC cord 7a protruding from the housing 5 for connecting the AC/DC conversion circuit 15 to a circuit of the luminaire 3; and a switch 8 installed in the housing 5, and provided in a circuit connecting the AC cord 6a and the DC cord 7a in order to turn on/off the luminaire 3.SELECTED DRAWING: Figure 1

Description

The present invention relates to an AC adapter device.

For example, as described in Patent Document 1, a luminaire having a luminaire and an AC adapter including an AC / DC conversion circuit is known.

Japanese Unexamined Patent Publication No. 2019-40666

When such a luminaire is configured as a luminaire for a desk to be used by attaching it to a desk, in order to ensure good usability, the luminaire is placed near the user's hand such as the side of the desk. It is required to provide an operation box provided with an ON / OFF switch. However, in this case, it is necessary to secure an installation space for the operation box in addition to the installation space for the AC adapter.

In view of these points, an object of the present invention is to provide an AC adapter device for a desk lighting fixture that can realize space saving.

The AC adapter device as the first aspect of the present invention is an AC adapter device for a lighting fixture, and is a housing mounted on a desk and accommodating an AC / DC conversion circuit, and an AC cord and an AC cord protruding from the housing. An AC wiring with a plug to connect to the AC / DC conversion circuit, a DC cord protruding from the housing and connecting the AC / DC conversion circuit to the circuit of the lighting equipment, and a lighting equipment installed in the housing. It has a switch provided in a circuit for connecting an AC cord and a DC cord in order to turn on / off the AC cord. According to such a configuration, by arranging the housing at an appropriate position on the desk, it is possible to realize space saving while ensuring good usability.

In one embodiment of the invention, both the AC cord and the DC cord project to the opposite side of the switch. According to such a configuration, it is possible to realize a neat appearance and further space saving.

According to the present invention, it is possible to provide an AC adapter device for a lighting fixture for a desk that can realize space saving.

It is a perspective view which shows the AC adapter device which concerns on one Embodiment of this invention in the state of being attached to the desk. It is a perspective view which shows the AC adapter apparatus alone shown in FIG. It is a perspective view which shows the AC adapter apparatus shown in FIG. 2 from another angle. It is an exploded perspective view of the AC adapter device shown in FIG. It is a block diagram of the AC adapter device shown in FIG.

Hereinafter, the AC adapter device according to the embodiment of the present invention will be described in detail with reference to the drawings.

As shown in FIG. 1, the AC adapter device 1 according to the present embodiment is for the lighting device 3 attached to the desk 2, and the AC adapter device 1 and the lighting device 3 combine the lighting device 4 for the desk. It is configured. The AC adapter device 1 may be configured as a lighting fixture to be mounted on a desk 2 and used.

The luminaire 3 includes an arm 3b including a lamp 3a composed of a direct current (DC) type light source such as a light emitting diode (LED), a fixing portion 3c connected to the arm 3b and fixed to the desk 2, and an arm 3b. It is composed of a power cord 3d protruding from the light source. The power cord 3d is not limited to the configuration that protrudes from the arm 3b, and may have a configuration that protrudes from the fixed portion 3c, for example. At the tip of the power cord 3d, a connector (not shown) for connecting to the DC connector 7b described later of the AC adapter device 1 is provided. By connecting the connector to the DC connector 7b, electricity can be supplied to the lamp 3a via the power cord 3d.

The fixing portion 3c is configured as a clamp device, and is fixed to the top plate 2a via a notch provided in the top plate 2a of the desk 2. The fixing portion 3c is not limited to the clamp device, and may be fixed by fasteners such as bolts and nuts. Further, the fixing portion 3c is not limited to the configuration of being fixed to the top plate 2a, and may be fixed to the book stand 2b of the desk 2, for example. The arm 3b has four rotatable joints 3e for adjusting the position of the lamp 3a, but the configuration of the arm 3b is not limited to this. Further, the base end of the arm 3b is rotatably and detachably connected to the fixing portion 3c, but the present invention is not limited to this.

The AC adapter device 1 has a housing 5, an AC wiring 6, and a DC wiring 7. The housing 5 is attached to the outer surface 2d of the side portion 2c of the desk 2, but is not limited to this, and may be attached to the inner surface 2e of the side portion 2c of the desk 2, and can be easily operated by other users. It may be attached to a part where it can be made. The desk 2 has a top plate 2a, a main stand 2b, a side plate 2f, and a storage portion 2g, but is not limited thereto.

As shown in FIGS. 2 to 3, the AC wiring 6 is composed of an AC cord 6a protruding from the housing 5 and a plug 6b. The DC wiring 7 is composed of a DC cord 7a protruding from the housing 5 and a DC connector 7b.

The housing 5 has an elongated box shape. One end surface of the housing 5 in the longitudinal direction is composed of a first surface 5a on which a switch 8 for turning on / off the luminaire 3 is installed. The switch 8 is a seesaw type, but is not limited to this, and may be a button type, for example. The other end surface of the housing 5 in the longitudinal direction, that is, the end surface located on the opposite side of the first surface 5a, is composed of a second surface 5b on which both the AC cord 6a and the DC cord 7a protrude. The AC cord 6a and the DC cord 7a are integrally connected to the second surface 5b, for example.

The housing 5 has a third surface 5c that is attached to the desk 2. The third surface 5c has two convex portions 9 for positioning. Each convex portion 9 is inserted into a positioning concave portion (not shown) provided on the desk 2. The number of convex portions 9 for positioning is not limited to two, and can be increased or decreased as appropriate. Further, the convex portion 9 for positioning may not be provided. Further, the third surface 5c has an opening 10 through which a mounting bolt (not shown) is passed. The housing 5 can be mounted on the desk 2 by passing a mounting bolt through the opening 10 and screwing it into, for example, a nut embedded in the desk 2. Reference numeral 11 in FIG. 2 indicates a lid that covers the insertion port of the mounting bolt.

The housing 5 has a fourth surface 5d in which two outlets 12 are installed. The number of outlets 12 is not limited to two, and can be increased or decreased as appropriate. The configuration may be such that the outlet 12 is not provided. The fourth surface 5d is provided on the opposite side of the third surface 5c, but is not limited to this.

One USB (Universal Serial Bus) port 13 is installed on the fourth surface 5d. The number of USB ports 13 is not limited to one, and can be increased or decreased as appropriate. The USB port 13 may be provided on a surface other than the fourth surface 5d. The configuration may be such that the USB port 13 is not provided.

The housing 5 has a fifth surface 5e on which the reset button 14a of the breaker 14 (see FIG. 4) is installed. The breaker 14 may not be provided.

As shown in FIGS. 4 and 5, the housing 5 houses the substrate 16 constituting the AC / DC conversion circuit 15. The substrate 16 is arranged closer to the other end side of the housing 5 in the longitudinal direction. The USB port 13 may be provided on the board 16 or may be provided on another board connected to the board 16. The outlet modules 17 constituting the two outlets 12 are arranged close to one end side in the longitudinal direction of the housing 5. The breaker 14 is arranged on the back side of the outlet module 17. Therefore, the substrate 16 is arranged so that neither the outlet module 17 nor the breaker 14 overlaps in the thickness direction (the direction perpendicular to the third surface 5c). As a result, the thickness of the housing 5 is reduced. The arrangement of the substrate 16, the outlet module 17, and the breaker 14 is not limited to this.

As shown in FIG. 4 and the like, the housing 5 constitutes a housing body 5g constituting the first surface 5a, the second surface 5b, the fourth surface 5d, the fifth surface 5e, and the sixth surface 5f, and the third surface 5c. It is composed of a housing lid 5h, but is not limited to this.

The plug 6b is connected to the AC / DC conversion circuit 15 by the AC cord 6a. More specifically, the plug 6b is connected to the AC / DC conversion circuit 15 by the AC cord 6a and the breaker 14, but is not limited to this. The DC connector 7b is connected to the AC / DC conversion circuit 15 by the DC code 7a. That is, the AC / DC conversion circuit 15 is connected to the circuit of the luminaire 3 by the DC code 7a. More specifically, the AC / DC conversion circuit 15 is connected to the circuit of the luminaire 3 by the DC code 7a and the switch 8, but is not limited to this. The switch 8, each outlet 12, the breaker 14, and the USB port 13 are provided in a circuit that connects the AC cord 6a and the DC cord 7a, respectively. More specifically, the AC code 6a is connected to the AC / DC conversion circuit 15 via the breaker 14, and the DC output unit of the AC / DC conversion circuit 15 is connected to the DC code 7a via the switch 8. , Not limited to this. Further, each outlet 12 is connected to a circuit between the breaker 14 and the AC / DC conversion circuit 15. The USB port 13 is connected to the DC output section of the AC / DC conversion circuit 15.

By connecting the plug 6b to an external outlet (not shown), for example, 100 V alternating current (AC) supplied from the external outlet via the plug 6b and the AC cord 6a is converted to direct current by the AC / DC conversion circuit 15. When the switch 8 is ON, this direct current is supplied to the lighting fixture 3a of the lighting fixture 3 via the DC cord 7a, the DC connector 7b, and the power cord 3d connected to the DC cord 7a. A direct current transformed into, for example, 12V by, for example, an AC / DC conversion circuit 15 is supplied to the DC code 7a. Further, a desired electric product can be connected to each outlet 12 or the USB port 13 for use. A direct current transformed into, for example, 5 V by, for example, an AC / DC conversion circuit 15 is supplied to the USB port 13. When an abnormality such as an overload or a short circuit occurs, the breaker 14 operates to cut off the continuity, so that safety can be ensured. After that, the use can be resumed by pressing the reset button 14a.

As shown in FIG. 1, in the housing 5, the first surface 5a on which the switch 8 is installed is located on the user's side, that is, the front, and the second surface 5b on which the AC code 6a and the DC code 7a protrude is rearward. It is attached to the side portion 2c of the desk 2 in the positioned state. Therefore, since the switch 8 is nearby, the user can easily turn on / off the luminaire 3, and the AC cord 6a and the DC cord 7a extend from the rear second surface 5b to give an appearance. It is possible to make the space cleaner and save space. The luminaire 3 may be provided with an additional switch for turning the luminaire 3 on and off.

The AC code 6a and the DC code 7a are not limited to a configuration that protrudes from the second surface 5b located on the opposite side of the first surface 5a on which the switch 8 is installed. Further, the AC code 6a and the DC code 7a may be configured to protrude from different surfaces. The DC wiring 7 does not have to have the DC connector 7b as long as the AC / DC conversion circuit 15 can be connected to the circuit of the luminaire 3 by the DC code 7a. The housing 5 is not limited to an elongated box-shaped structure, and may have a rectangular parallelepiped shape or a shape other than the box-shaped shape, for example. Even in this case, it is preferable that both the AC code 6a and the DC code 7a project to the opposite side of the switch 8.

As described above, the AC adapter device 1 according to the present embodiment has a housing 5 that accommodates the AC / DC conversion circuit 15 and has a switch 8 for the luminaire 3 installed. By arranging the desk 2 at an appropriate position, it is possible to save space while ensuring good usability.

Further, in the AC adapter device 1 according to the present embodiment, since both the AC code 6a and the DC code 7a project to the opposite side of the switch 8, the appearance is neat and further space saving is realized. Can be done.

Further, in the AC adapter device 1 according to the present embodiment, since the housing 5 has an elongated shape in which the switch 8 is provided at one end in the longitudinal direction, further space saving can be realized.

Further, in the AC adapter device 1 according to the present embodiment, since the breaker 14 is arranged on the back side of the outlet 12, the thickness of the housing 5 can be reduced and further space saving can be realized.

It goes without saying that the above-described embodiment is merely an example of the embodiment of the present invention and can be variously modified without departing from the gist of the invention.

1 AC adapter device 2 Desk 2a Top plate 2b Main stand 2c Side part 2d Outer surface 2e Inner surface 2f Side plate 2g Storage part 3 Lighting equipment 3a Lighting equipment 3b Arm 3c Fixed part 3d Power cord 3e Joint 4 Lighting device 5 Housing 5a 1st surface 5b 2nd Surface 5c 3rd surface 5d 4th surface 5e 5th surface 5f 6th surface 5g Housing body 5h Housing lid 6 AC wiring 6a AC cord 6b plug 7 DC wiring 7a DC cord 7b DC connector 8 Switch 9 Convex 10 Opening 11 Lid 12 Outlet 13 USB port 14 Breaker 14a Reset button 15 AC / DC conversion circuit 16 Board 17 Outlet module

Claims (2)

An AC adapter device for lighting equipment
A housing that can be mounted on a desk and houses an AC / DC conversion circuit,
AC wiring including an AC cord protruding from the housing and a plug connected to the AC / DC conversion circuit by the AC cord, and
A DC cord that protrudes from the housing and connects the AC / DC conversion circuit to the circuit of the luminaire.
An AC adapter device that is installed in the housing and has a switch provided in a circuit that connects the AC cord and the DC cord in order to turn on / off the luminaire. The AC adapter device according to claim 1, wherein both the AC cord and the DC cord project to the opposite side of the switch.

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