JPH05101951A - Electronic stabilizer - Google Patents

Abstract

PURPOSE:To miniaturize an electronic stabilizer by arranging a terminal block in which a plurality of terminal connectors are connected in the longitudinal direction of a housing. CONSTITUTION:A terminal connector 22 is laterally arranged on one terminal block 20 on a circuit board 16 in a housing 1 of an electronic stabilizer. Terminal blocks 31 having many terminal connectors 32 are divided into two groups. The longitudinally provided connectors 32 are arranged at the side edges of the board 16. Thus, the stabilizer can be miniaturized.

Description

Detailed Description of the Invention

[Object of the Invention]

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a miniaturized electronic ballast.

[0003]

2. Description of the Related Art In recent years, along with the miniaturization and thinning of devices such as lighting fixtures, electronic ballasts have been required to be thinner and thinner.

In the conventional electronic ballast of this type, the terminal connecting portions of the terminal block are arranged side by side in a row in the width direction on the end surface of the elongated housing.

That is, as shown in FIG. 5, reference numeral 1 denotes a thin and flat casing, which is formed on a lower casing 2 having a substantially L-shaped cross section and an upper surface of the lower casing 2. Upper case 3 to be attached
It is formed by and. Further, in the lower housing 2, one side surface portion 5 is formed by bending along the longitudinal direction on one side surface side intersecting with the bottom surface portion 4, and the other side surface portion having a lower height than the side surface portion 5 on the other side. 6 is bent along the longitudinal direction. Further, in the upper housing 3, a side surface portion 8 attached to the one side surface portion 5 is bent on one side in the longitudinal direction of the upper surface portion 7, and the other side surface portion 6 is provided on the other side via an inclined portion 9. The other side surface portion 10 that is attached to is attached. Both ends of the upper casing 3 are closed by end plates 11, and cooling holes 12 and 13 are formed in the upper casing 3 and the end plate 11, respectively. The bottom surface portion 4 is formed with mounting holes 14, 14 for mounting on a lighting fixture body or the like (not shown).

Next, the circuit board 16 will be described with reference to FIG. The circuit board 16 is attached substantially parallel to the bottom surface portion 4 with a locking claw 17 bent on the side surface portion 6 and a grounding and attaching screw 18. A transistor, a resistor, a capacitor, and other electronic components 19 are attached to the circuit board 16, an input terminal block 20 is attached to one end of the circuit board 16, and an output terminal block 21 is attached to the other end. Attached, these terminal blocks 20 and 21 are terminal connection parts 2 to which lead wires are connected.
3, 24 are mounted facing upward. It should be noted that these terminal blocks 20 and 21 are installed after the end plate 11 is attached to the upper housing 3.
It is arranged to be located outside the end plate 11. As described above, if the terminal connecting portions 22 and 23 of the terminal blocks 20 and 21 are mounted so as to face upward, the electronic ballast can be flattened as compared with the case where the terminal blocks 20 and 21 are mounted to the end plates. it can.

[0007]

However, in the case of the above-mentioned conventional electronic ballast, the dimension in the width direction is determined by the dimension of the terminal block because of the insulation distance, the size of the terminal connecting portion of the terminal block, and the like. There is a problem in that it is not possible to achieve sufficient miniaturization of the electronic ballast.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an electronic ballast that is particularly thin and thin.

[Constitution of Invention]

[0010]

An electronic ballast according to claim 1, wherein the electronic ballast is housed in an elongated casing and has a terminal block having a terminal connecting portion, wherein the terminal block is the terminal connection. A plurality of parts are arranged in series and are arranged along the longitudinal direction of the casing.

An electronic ballast according to a second aspect is the electronic ballast according to the first aspect, wherein the terminal block is provided with a terminal connecting portion on one side surface crossing the bottom surface of the housing.

[0012]

In the electronic ballast according to the first aspect of the present invention, a terminal block having a plurality of terminal connecting portions arranged in series along the longitudinal direction of the housing is arranged to reduce the size of the electronic ballast.

According to another aspect of the electronic ballast of the present invention, the electronic ballast is provided with a terminal connecting portion on one side surface that intersects with the bottom surface of the housing, and the width direction is narrowed to make the electronic ballast thin.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of an electronic ballast according to the present invention will be described below with reference to the drawings. It should be noted that portions corresponding to the reference numerals of the conventional electronic ballast shown in FIGS.

As shown in FIG. 1, on the circuit board 61 of the electronic ballast casing 1, one terminal block 20 is provided with a terminal connecting portion 22 in the width direction as in the conventional case. The terminal block 31 having a large number of 32 is divided into two, and a plurality of terminal connecting portions 32 are provided continuously on the side edge side of the circuit board 61 along the longitudinal direction. Then, mounting holes 14 for grounding and mounting screws are formed at both ends.

Further, as shown in FIG.
The terminals 33, 34 may also be provided with a plurality of terminal connection portions 35, 36 along the longitudinal direction.

According to the embodiments shown in FIGS. 1 and 2,
Since the terminal connecting portions of the terminal block are arranged along the longitudinal direction of the electronic ballast, the width of the electronic ballast can be set regardless of the number of the terminal blocks, so that the electronic ballast can be made thin.

Further, as shown in FIG. 3, a self-locking type terminal block 42 may be used in which a plurality of terminal connecting portions 41 are formed in the height direction on one side surface crossing the bottom surface.

According to the embodiment shown in FIG. 3, the height dimension can be reduced by providing a plurality of terminal connecting portions 41 in the height direction, and the electronic ballast can be miniaturized.
Can be made thinner.

[0020]

According to the electronic ballast described in claim 1, the terminal block is arranged along the longitudinal direction of the housing, and the terminal connecting portion is provided in the thin height direction of the housing. The ballast can be miniaturized.

According to the electronic ballast of the second aspect, in addition to the electronic ballast of the first aspect, the terminal base is provided with a terminal connecting portion on one side surface intersecting with the bottom surface of the housing. Since the number of connecting portions in the width direction can be reduced, the electronic ballast can be made thinner.

[Brief description of drawings]

FIG. 1 is a plan view showing a circuit board showing an embodiment of an electronic ballast of the present invention.

FIG. 2 is a plan view showing a circuit board showing another embodiment.

FIG. 3 is a perspective view of a terminal block showing another embodiment.

FIG. 4 is a plan view showing a conventional electronic ballast.

FIG. 5 is a front view of the same.

FIG. 6 is a side view of the same.

FIG. 7 is a plan view showing the same circuit board.

[Explanation of symbols]

 1 Case 20, 31, 33, 34, 42 Terminal block 32, 35, 36, 41 Terminal connection part

Claims (2)

[Claims] 1. An electronic ballast, which is housed in an elongated casing and includes a terminal block having a terminal connecting portion, wherein the terminal block has a plurality of the terminal connecting portions arranged in series and is An electronic ballast, which is arranged along the longitudinal direction. 2. The electronic ballast according to claim 1, wherein the terminal block includes a terminal connecting portion on one side surface side that intersects with a bottom surface of the housing.