JP2602381B2 - Capacitor connection unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a capacitor connecting unit for connecting an electric wire and a terminal to a capacitor collectively.

[0002]

2. Description of the Related Art FIG. 8 is an exploded perspective view showing a conventional capacitor connecting unit described in Japanese Patent Application Laid-Open No. 3-187170, and FIG. 9 is a cross-sectional view showing the assembled state. The capacitor connection unit 31 has a terminal fixing plate 33 having a pair of terminal insertion holes 32, a tab-like contact portion 34 inserted into the terminal insertion hole 32, and an electric wire 3
6, a pair of male terminals 37 for crimping, and a pair of terminals 3
7, a capacitor 40 wound around a lead-side protruding portion 39 of the terminal 37 and connected by soldering,
A unit housing 43 which accommodates these capacitor connection bodies 41 and is molded and fixed with a resin 42 is constituted.

However, the conventional capacitor connection unit 31 requires labor-intensive operations such as crimping of the electric wire 36 to the terminal 37, winding of the lead wire 38 of the capacitor 40, and cutting of the extra wire 38a. There was a problem of poor sex. In addition, there is a disadvantage that only the male terminal 37 having the tab-shaped contact portion 34 can be used in order to prevent the mold resin 42 from leaking from the terminal insertion hole 32.

[0004]

SUMMARY OF THE INVENTION In view of the above, the present invention makes it possible to easily connect wires and lead wires of a capacitor to a terminal to improve productivity, and to provide not only a tab-shaped contact but also a contact of any shape. It is an object of the present invention to provide a capacitor connection unit that can use a terminal having a portion.

[0005]

In order to achieve the above object, according to the present invention, a capacitor mounting portion having a wire holding groove is provided on an inner wall of a unit housing, and a terminal insertion hole is provided on the inner wall. A flat connection part of the terminal is inserted from the outside into the terminal insertion hole, and a conductor exposed part of the electric wire engaged with the wire holding groove and a lead terminal of the capacitor are collectively connected to the flat connection part. A structure is employed in which a resin is injected into the unit housing in a state where the capacitor is housed, and each component is molded and fixed.

[0006]

The flat connection portion of the terminal is inserted into the terminal insertion hole of the unit housing from the outside. Next, the electric wire is engaged with the electric wire holding groove, and the conductor exposed portion of the electric wire is located at the flat connection portion. Further, by arranging the capacitor on the mounting portion, the lead terminal of the capacitor is located at the flat connection portion together with the conductor exposed portion. Thereby, the electric wire and the capacitor can be connected to the terminal all at once. In addition, since one flat connection portion of the terminal is inserted and fixed in the terminal insertion hole from the outside, the shape of the other electric contact portion can be set arbitrarily without being limited to the tab shape.

[0007]

FIG. 1 is a perspective view showing a unit housing in an embodiment of a capacitor connecting unit according to the present invention. FIG. 2 is a longitudinal sectional view showing a state where terminals, electric wires and capacitors are assembled to the unit housing. 3 is a vertical sectional view of the same.

The unit housing 1 is formed integrally with a synthetic resin, and has a ridge portion 4 having a pair of or more terminal insertion holes 3 formed in the transverse direction of the inner wall surface 2a of the substrate portion 2 and the ridge portion. Adjacent to the terminal insertion hole 3 of the part 4,
A pair of mounting protrusions 6 are provided as capacitor mounting portions in which a U-shaped wire holding groove 5 is formed in the longitudinal direction, and a capacitor positioning plate 7 is erected outside and behind the mounting protrusions 6. The protrusion 4, the mounting protrusion 6, and the positioning plate 7 are provided in the unit housing 1.
Are arranged in such a manner that two capacitors 8, 8 are juxtaposed in the longitudinal direction. In the drawing, reference numeral 9 denotes a mounting auxiliary projection.

At the longitudinal end of the unit housing 1, a lead-out portion 11 having an electric wire guide groove 10 is provided, and at the end of the lead-out portion 11, a fixing member having an electric wire insertion groove 12 is formed. 13 by means of a thin hinge 14
5 and 16 are provided so as to be able to be closed. Further, a connector housing 18 having a terminal accommodating space 17 following the terminal insertion hole 3 is integrally provided on an outer wall surface 2b of the substrate portion 2 of the unit housing 1.

A flat connection portion 20 of a terminal 19 is press-fitted into the terminal insertion hole 3 from the connector housing 18 side, that is, from outside to inside of the unit housing 1.
The terminal 19 has, on one side, the flat plate-shaped connecting portion 20 having a wire receiving groove 22 formed between a pair of caulking pieces 21, and on the other side,
Each has a pin-shaped electric contact portion 23 formed by rolling a plate piece following the plate-shaped connection portion 20.

The conductor exposed portion 25 of the electric wire 24 pushed into the electric wire holding groove 5 in the unit housing 1 is placed in the electric wire receiving groove 22 of the flat connecting portion 20. The conductor exposed portion 25 is formed by peeling a coating to a required dimension in advance. Further, by setting the capacitor 8 on the mounting projection 6, the lead terminal 26 is superimposed on the exposed conductor portion in the wire receiving groove 22, as shown in FIG. And
As shown in FIG. 5, the crimping piece 21 of the flat connecting portion 20 is bent inward, and the conductor portion 25 of the electric wire 24 and the capacitor 8 are bent.
Together with the lead terminal 26 and soldered.

The insertion of the terminals 19, the pressing and holding of the wires 24, and the setting of the capacitors 8 can be efficiently performed by automatic assembly in the vertical direction. FIG.
FIG. 7 is a vertical cross-sectional view showing a state in which resin 28 has been injected into the unit housing 1 from the upper opening 27 and the components have been fixed by molding.

Here, since the flat connection portion 20 of the terminal 19 is press-fitted into the terminal insertion hole 3, there is no risk of resin leakage, and the shape of the electric contact portion 23 is not limited to the tab shape unlike the conventional case. It can be set to any shape such as a pin shape.

[0014]

As described above, according to the present invention, since the electric wires and the lead terminals of the capacitor can be connected together at the same place, the working efficiency is improved and the productivity is improved.
There is no need to worry about an increase in resistance due to an increase in the number of connection points, and the reliability of electrical connection is improved. Furthermore, since the flat connection part of the terminal is inserted from the outside into the terminal insertion hole of the unit housing, the electric contact part of the terminal can be set to an arbitrary shape, and it is possible to correspond to various connector connections.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a unit housing in a capacitor connection unit of the present invention.

FIG. 2 is a longitudinal sectional view showing a state where the capacitor connection unit is assembled.

FIG. 3 is a vertical sectional view of the same side view.

FIG. 4 is a detailed view of a portion A in FIG. 2 showing a connection state of a terminal, an electric wire, and a capacitor.

FIG. 5 is a sectional view taken along line BB of FIG. 4;

FIG. 6 is a top plan view showing an assembled state of the capacitor connection unit.

FIG. 7 is a longitudinal sectional view of the same resin molded state.

FIG. 8 is an exploded perspective view showing a conventional example.

FIG. 9 is a transverse sectional view showing the assembled state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Unit housing 3 Terminal insertion hole 5 Electric wire holding groove 6 Mounting projection 8 Capacitor 19 Terminal 20 Flat connection part 24 Electric wire 25 Conductor exposed part 26 Lead terminal

Claims (1)

(57) [Claims] 1. A capacitor mounting portion having an electric wire holding groove is provided on an inner wall of a unit housing, a terminal insertion hole is provided on the inner wall, and a flat connecting portion of a terminal is inserted into the terminal insertion hole from the outside. A conductor exposed portion of the electric wire engaged with the electric wire holding groove and a lead terminal of the capacitor are collectively connected to the flat connection portion, and a resin is injected into the unit housing in a state where the capacitor is housed, A capacitor connection unit, wherein each component is molded and fixed.