JPH0322033Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention relates to an automobile side molding incorporating an EL (electroluminescence) element as a light emitting plate.

(Prior art) Fig. 5 shows a conventional example of a power supply device for an EL element, in which power is supplied to the EL element 1 by converting the voltage of a DC power supply 2 into a DC-AC converter 3, which is necessary for driving the EL element 1. This is done by converting the AC voltage to, for example, 250V _pp , and supplying this AC voltage via the power cord 4 and connector 5.

However, if the connector 5 is present in the power supply circuit as described above, there is a risk that leakage may occur if water or dirt adheres to this connector portion. Further, if the connector 5 is unplugged and energized, there is a risk of electric shock.

(Purpose of the invention) The purpose of the invention is to provide a side molding for an automobile that is equipped with a power supply structure for the EL element that allows the EL element to be separated from the power source and that does not cause any risk of electric shock or leakage. be.

(Summary of the invention) This invention consists of a transformer and an excitation part for direct current.
In a car side molding that supplies a light-emitting plate made of an EL element by converting the voltage into alternating current of the required voltage using a DC-AC converter, an opening for inserting the light-emitting plate into the end of a slide-shaped light-emitting plate attachment part. , the light emitting plate is slidably mounted on the light emitting plate mounting portion, and a primary side divided body is formed by dividing the core of the transformer of the DC-AC converter into two and winding the primary winding. A secondary side divided body formed by winding a secondary winding is placed on the light emitting plate mounting part, and a secondary side divided body is placed on the light emitting plate, so that the primary side divided body and the secondary side divided body are opposed to each other. It is characterized by having a power feeding structure that can be joined and separated at the cut surface of the core.

(Example) Figures 1 to 4 show an example of the present invention, in which an EL element is incorporated into the side molding of an automobile as a light emitting plate. That is, a slide-type light emitting plate mounting portion 12 is formed on a side molding 11 for an automobile, and a light emitting plate 13 is inserted through an opening at an end of the light emitting plate mounting portion 12 and fixed with screws 14.
As the light emitting plate 13, an EL element is used and is used as an ornament.

The DC-AC converter that serves as the driving power source for the EL element is composed of a transformer 21 and an excitation section 22, as shown in FIGS. 2 to 4. In the present invention, the core of the transformer 21 is divided into two parts, The primary winding 21B is in one divided body 21A, and the other divided body 21
A' is wound with a secondary winding 21C, and the excitation part 22 and the primary side divided body 21' of the transformer 21 are placed on the side molding 11 side, and the secondary side divided body 21'' is placed on the light emitting plate 13 side. Each is embedded.
In this case, the cut surface of the core of the transformer 21 is exposed and can be joined, and when the light emitting plate 13 is attached, a closed magnetic circuit is formed as shown in FIG. 4, and the light emitting plate 13 is removed. In this state, a wide gap is created in the magnetic circuit as shown in FIG.

With such a structure, if the light emitting plate 13 is attached to the light emitting plate mounting portion 12 of the automobile side molding 11, the EL element (light emitting plate) 1
The cut surfaces of the split cores 21A and 21A' of the transformer 21 of the DC-AC converter, which is the drive power source of No. 3, are joined to form a closed magnetic circuit, and the transformer 21
An alternating voltage of a desired frequency is induced in the secondary winding 21C of the EL element 13, and the EL element 13 enters a light emitting state.

In addition, if it is necessary to remove the light emitting plate 13, remove the screw 14 and remove the plate 13.
The core is in a divided state, and even if the power is turned on, the EL element 13 is turned off, and there is no risk of electric shock or leakage.

(Effects of the invention) As described above, according to the invention, the core of the transformer of the DC-AC converter is divided, and the supply and stop of the driving voltage of the EL element is controlled by connecting and disconnecting the core, so that the EL Power is now supplied to the element by forming a magnetic circuit, eliminating the risk of electric shock or leakage. In addition, since the primary and secondary sides of the power supply and the EL element are assembled in an independent state, and the cores are joined in the assembled state, replacement and maintenance of the EL element are facilitated. Furthermore,
Since the EL element emits light only when the split core is in a predetermined position, it can also be used as a sensor for position detection.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the power supply device for an EL element according to the present invention, Fig. 2 is a circuit diagram of a DC-AC converter, Figs. 3 and 4 are operation explanatory diagrams, and Fig. 5 is a FIG. 2 is an explanatory diagram showing a conventional example. DESCRIPTION OF SYMBOLS 11...Automobile side molding, 12...Light-emitting plate attachment part, 13...Light-emitting plate (EL element), 14...Set screw, 21...Transformer, 2
1' and 21''...divided body, 21A and 21A'...
...Core division body, 21B...Primary winding, 21C...
Secondary winding.

Claims (1)

[Scope of Claim for Utility Model Registration] A slide-type side molding for an automobile that converts direct current into alternating current of the required voltage using a DC-AC converter consisting of a transformer and an excitation unit to supply a light-emitting plate made of an EL element. An opening for inserting the light emitting plate 13 is provided at the end of the light emitting plate mounting portion 12, and the light emitting plate 13 is slidably mounted on the light emitting plate mounting portion 12, and the core of the transformer of the DC-AC converter is divided into two. Primary side divided body 2 formed by winding the primary winding
1' is placed on the light emitting plate attachment part 12, and a secondary side divided body 21'', which is formed by winding a secondary winding, is placed on the light emitting plate 13, and the primary side divided body 21 is placed on the light emitting plate 13. 1. A side molding for an automobile, characterized in that it has a power feeding structure in which a secondary side divided body 21'' can be joined and separated at opposing core cut surfaces.