JP2002373749A - Electric element - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the space factor of an electric circuit to be incorporated in a case by arranging electric elements three-dimensionally in hierarchy when the electric circuit is to be mounted in the case by bus bar wiring and conducting laying around the bus bar simply and freely. SOLUTION: The electric element fitted with a housing is structured so that a storage part for other electric element is formed rigidly in the middle part of the side wall of the housing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric element with a housing.

[0002]

2. Description of the Related Art Conventionally, when mounting an electric circuit, an electric element such as a capacitor put in a housing made of a synthetic resin has been incorporated in order to ensure moisture proof, dust proof and insulation properties.

[0003] Conventionally, without using a circuit board,
A circuit in which various electric elements are wired by a bus bar provided in advance by press-fitting or the like on the case side to incorporate an electric circuit into the case has been developed (Patent No. 30).
No. 90448).

[0004] That is, each electric element which is a component of the electric circuit is wired in a planar manner by a bus bar, so that the layout of the bus bar becomes complicated and the space factor of the electric circuit incorporated in the case is increased. It is bad.

[0005]

The problem to be solved is that, when an electric circuit is incorporated into a case by bus bar wiring, the bus bar is arranged so that each electric element which is a component of the electric circuit is arranged in a plane. In the case of wiring, the routing of the bus bar becomes complicated, and the space factor of the electric circuit incorporated in the case is deteriorated.

[0006]

SUMMARY OF THE INVENTION According to the present invention, there is provided an electric element with a housing, in which a housing portion for another electric element is integrally formed in the middle of a side wall portion of the housing, and an electric circuit is formed by bus bar wiring. At the time of assembling, the other electric elements are housed in a housing portion provided in the housing, so that the other electric elements can be arranged three-dimensionally in a hierarchy.

[0007]

1 to 3 show an example of an electric circuit incorporated in a case by bus bar wiring.

Here, a choke coil L, a bidirectional Zener diode ZD, a resistor R, a capacitor C with a housing, a spark gap SG and a transformer T, which are components of the HID lamp starting circuit shown in FIG. The busbar wiring is used for installation.

In the figure, reference numeral 11 denotes a transformer T in case 1.
The unit of the transformer T is press-fitted from an opening on the back side of the case 1. Reference numeral 12 denotes a connector from which the low-voltage terminal Lo, high-voltage terminal Hi, and GND terminal on the input side of the HID lamp starting circuit incorporated in the case 1 are drawn out.

In this case, in particular, in the present invention, as shown in FIGS. 5 and 6, a housing 8 for a zener diode ZD is integrally formed in the middle of the side wall of the housing of the capacitor C. The resistors R are wired by the bus bar 2 so that the resistors R are three-dimensionally arranged in a hierarchy under the lower layers.

In the figure, reference numeral 4 denotes a lead of the capacitor C;
Numerals 9 and 10 are protrusions for inserting the housing of the capacitor C into positioning holes (see FIG. 4) provided on the case 1 side. Further, the housing portion 8 is formed with a groove 81 for leading out a lead of the zener diode ZD to be press-fitted therein.

Although the resistor R is not shown in FIGS. 1 to 3, the resistor R is arranged below the Zener diode ZD. In the figure, 4 (R) indicates lead terminals at both ends of the resistor R.

The bus bar 2 has a shape as shown in FIGS. Then, as shown in FIGS. 3 and 4, the base portion 21 of the bus bar 2 is insert-molded in the case 1, and each tip portion 22 of the bus bar 2 to which each electric element of the HID lamp starting circuit is connected is in the same direction. Has been launched. Reference numerals 231 to 233 denote low-voltage terminals Lo, high-voltage terminals Hi, and GND terminals that are drawn out to the connector section 12 of the case 1.

Each of the raised end portions 2 of the bus bar 2
2 is provided with a U-shaped (or V-shaped, Y-shaped) cut groove 3, into which the lead 4 of each electric element in the HID lamp starting circuit is press-fitted and welded. I have to.

At this time, the lengths of the tip portions 22 raised on the bus bar 2 are different, and the respective electric elements L, ZD, R, C, and SG are three-dimensionally arranged with a hierarchy.

As described above, the electric elements L, ZD, R, C, and SG of the HID lamp starting circuit are three-dimensionally incorporated into the case 1 in a hierarchical manner by using only the wiring by the bus bar 2 without using any circuit board. By doing so, it is possible to freely and simply arrange the bus bar 2 in the three-dimensional space, and the space factor of the starting circuit incorporated in the case 1 is improved.

Further, the leads 4 of the respective electric elements are press-fitted into the cut grooves 3 provided at the respective leading end portions 22 of the bus bars 2 raised in the same direction on the case 1 and temporarily fixed. It is possible to perform welding by irradiating a laser beam to each of the tip portions 22 thereof, so that welding in a narrow space can be performed easily and reliably, which is advantageous for automation.

At this time, if the bus bar 2 is turned around so that the portion where the lead 4 is press-fitted into the cut groove 3 of each raised end portion 22 of the bus bar 2 is exposed without overlapping, the case is improved. 1, welding by laser irradiation can be sequentially performed in a state where all the electric elements of the HID lamp starting circuit are temporarily fixed.

In a case where the electric elements to be assembled in the case 1 are dense and the handling of the bus bar 2 is complicated so that the raised end portions 22 do not overlap, the electric elements are temporarily fixed for each layer. To perform laser welding (or soldering).

In case 1, as shown in FIG.
Storage section 5 for each electric element L, R, SG of lamp starting circuit
(L), 5 (R), and 5 (SG) are provided, and each of the electric elements L, R, and SG is assembled to each of the storage sections 5. The case 1 is provided with a step 6 and a hole 7 for positioning the capacitor C. The projections 9 and 10 provided on the bottom of the capacitor C are inserted into the hole 7 and the step 6 is inserted into the step 6. By locking the capacitor C, the capacitor C is assembled to the case 1 with vibration resistance.

[0021]

As described above, according to the present invention, in an electric element with a housing, a housing portion for another electric element is integrally formed in the middle of a side wall portion of the housing. When incorporating into
By storing another electric element in the storage part provided in the housing of one electric element, it becomes possible to arrange the other electric elements three-dimensionally with a hierarchy, and to easily and freely manage the bus bar. H incorporated in the case
This has the advantage that the space factor of the ID lamp starting circuit can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration example of an electric circuit incorporated in a case by bus bar wiring.

FIG. 2 is a plan view of a case in which the electric circuit is incorporated.

FIG. 3 is a side view of a case in which the electric circuit is incorporated.

FIG. 4 is a plan view of a case in which a bus bar is insert-molded.

FIG. 5 is a plan view showing an electric element in which a housing part for another electric element is integrally formed in the middle of the side wall portion of the housing according to the present invention.

FIG. 6 is a front view of an electric element in which a housing portion for another electric element is integrally formed.

FIG. 7 is a plan view of a bus bar insert-molded in a case.

FIG. 8 is a side view of the bus bar.

FIG. 9 is an electric circuit diagram showing one configuration example of an electric circuit incorporated in a case.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Case 2 Bus bar 8 Storage part integrally formed in the housing of the capacitor

Claims (1)

[Claims] 1. An electric element with a housing, wherein a housing portion for another electric element is integrally formed in the middle of a side wall portion of the housing, and when forming an electric circuit, the other electric elements are three-dimensionally arranged in a hierarchy. An electric element characterized in that it can be arranged in a uniform manner.