JP2001327043A - Terminal-welded laminated bus bar - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal-welded laminated bus bar that is easy to design manufacture, and is highly reliable. SOLUTION: To form the bus bar, a terminal 22 which have only to be welded to the side face of a tape-like conductor 20, a groove 21 or recess 44 formed on the side face, or a notch 30 formed on eth edge of a conductor 31. Therefore, the thickness and width of conductors can be selected according to restrictions on the mounting space for the laminated bus bar or the dimensional requirements of terminal specifications, and since different terminal pitches can be accommodated, designing and manufacturing operations for the bus bar are facilitated. Using soldering for welding a terminal 22 to a conductor 20, the effect of heat on the conductor 20 or terminal 22 can be reduced, so that this contributes to the enhancement of reliability.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal welding type laminated bus bar.

[0002]

2. Description of the Related Art In recent years, when wiring an electric circuit, instead of soldering using a wire or screwing a wire to which a crimp terminal is attached, wiring using a bus bar is performed. Is being done.

FIG. 8 is a sectional view showing a conventional example of a bus bar, and FIG. 9 is a partial external perspective view of a conductor used for the bus bar shown in FIG.

The bus bar 1 includes a plurality of tape-shaped conductors (current-carrying portions) 2, a plurality of terminals 3 formed integrally with the conductor 2 and connected to an electric circuit (not shown), It is composed of an inner insulator 4 and an outer insulator 5 that are alternately stacked. In addition, 6 is the conductor 2 and the inner layer insulator 4
And a filler for fixing the outer layer insulator 5.

For connection between the bus bar 1 and the electric circuit, connector connection, screwing, soldering or the like is used.

FIG. 10 is a partial external perspective view showing a conventional example of a bus bar.

In this method, a terminal 9 is integrally formed by punching a deformed strip 8 obtained by subjecting a conductor to an arbitrary cross-sectional shape (for example, the thickness of an edge portion is thin in the longitudinal direction). is there.

FIG. 11 is a partial external perspective view showing another conventional example of the conductor used for the bus bar shown in FIG.

This is because the edge of the tape-shaped conductor 10 and the terminal 11
And the contact portion 12 with silver is brazed by silver.

[0010]

When the conventional laminated bus bar 1 shown in FIG. 8 is used, if there is a restriction on the mounting space or a dimensional regulation of the terminal specifications, the conductor 2
Cannot be changed, and the width of the conductor 2 cannot be increased.

Further, the laminated bus bar shown in FIG. 10 requires a drawing die for each cross-sectional shape, so that the material price is high and it is not a general distribution product, so that there is a problem in terms of delivery. Further, the terminal 3 shown in FIG.
If the pitches of the terminals 9 are different, the terminals 9 must be formed independently, which increases the cost. Moreover, when processing the conductor terminals, it is necessary to design a mold in consideration of the difference in thickness between the terminal 9 and the conductor, and there is no general versatility of the equipment. The cost increases.

The laminated bus bar using the conductor shown in FIG. 11 is joined by silver brazing, so that the amount of heating becomes large, the material becomes extremely dull, and the reliability decreases.
There may be a problem in wiring and handling.

It is an object of the present invention to solve the above-mentioned problems and to provide a terminal welding type laminated bus bar which is easy to design and manufacture and has high reliability.

[0014]

In order to achieve the above object, a terminal welding type laminated bus bar according to the present invention comprises: a plurality of tape-shaped conductors; a plurality of terminals welded to the conductors and connected to an electric circuit; And a tape-shaped insulator alternately laminated, wherein the terminals are welded to grooves formed on the side surfaces of the conductor.

[0015] A terminal welding type laminated bus bar according to the present invention comprises a plurality of tape-shaped conductors, a plurality of terminals welded to the conductors and connected to an electric circuit, and a tape-shaped insulator alternately laminated with the conductors. In the terminal welding type laminated bus bar provided, the terminal is welded to a notch formed in the edge of the conductor.

A terminal-welding type laminated bus bar according to the present invention comprises a plurality of tape-shaped conductors, a plurality of terminals welded to the conductors and connected to an electric circuit, and a tape-shaped insulator alternately laminated with the conductors. In the terminal welding type laminated bus bar provided, the terminal is welded to the side surface of the conductor.

[0017] A terminal welding type laminated bus bar according to the present invention comprises a plurality of tape-shaped conductors, a plurality of terminals welded to the conductors and connected to an electric circuit, and a tape-shaped insulator alternately laminated with the conductors. In the terminal welding type laminated bus bar provided, the conductor is a deformed strip having a thin edge portion in the longitudinal direction, and the terminal is welded to the edge portion.

In addition to the above configuration, the terminals of the terminal welding type laminated bus bar of the present invention are preferably soldered to a conductor.

According to the present invention, the side surface of the tape-shaped conductor,
It is sufficient to weld the terminal to the groove formed on the side surface or the notch formed at the edge of the conductor, so select the thickness and width of the conductor according to the mounting space restrictions of the laminated bus bar and the dimensions of the terminal specification Since it is possible to cope with different terminal pitches, design and manufacture are facilitated. Further, by using soldering for welding the terminal to the conductor, the influence of heat on the conductor and the terminal can be reduced, so that the reliability is improved.

[0020]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a diffusion exploded view showing an embodiment of a conductor and a terminal used in a terminal welding type laminated bus bar of the present invention.

As shown in FIG. 2, a groove 21 is formed on one (upper side in the figure) side surface of the tape-shaped conductor 20, and the groove 21
The terminal 22 is soldered to the conductor 20 and the terminal 2.
And 2 are integrated. A plurality of integrated conductors 20 and terminals 22 are prepared, and a tape-shaped insulator having a predetermined width is alternately laminated as in the conventional example shown in FIG. By the protection, a terminal welding type laminated bus bar is obtained.

The terminal 22 has a hole 23 through which a core wire (or a screw) of a stripped wire (not shown) is passed.
Is a strip formed at the tip, and the thickness t of the terminal is
1 is thinner than the thickness t2 of the conductor (the terminal may have a shape for connector connection, and may not have a hole).

As a method of processing the terminal 22, a strip obtained by punching strips in a chain by progressive press working may be cut.
The strip may be punched with a full mold (dropout mold).

As a method of soldering the terminals 22 to the conductors 20, the conductors 20 may be soldered using a soldering iron while heating the conductors 20 on a hot plate, and the terminals 22 and the conductors 20 may be clipped. Alternatively, it may be fixed with a jig or the like, and put into a reflow soldering line.

The solder used may be cream solder or solid (rod, plate).

FIGS. 2A and 2B are views for explaining a method of processing the conductor shown in FIG.

The tape-shaped conductor 20 is held down by a conductor holder (die) 24 so that the side surface is vertical (FIG. 2).
(A)) A groove 21 is formed in the conductor 20 by shaving off a portion 20a to which the terminal 22 is to be soldered from above with a cutting blade 25 (FIG. 2B).

The conductor 20 thus obtained is alternately laminated with a tape-shaped insulator to obtain a terminal-welded laminated bus bar.

With this configuration, the thickness and width of the conductor can be selected in accordance with the restrictions on the mounting space and the dimensions of the terminal specifications. Grooves are formed in the conductor according to the required pitch. Since the terminal may be welded to the groove, the production is facilitated without using a drawing die, and the yield is improved. Further, by using soldering for welding the terminal to the conductor, the influence of heat on the conductor and the terminal can be reduced.

FIG. 3 is an exploded exploded view showing another embodiment of the conductors and terminals used in the terminal welding type laminated bus bar of the present invention.

The difference from the embodiment shown in FIG. 1 is that the terminals are soldered to the notches formed in the edges of the conductor.

The terminal 22 and the conductor 31 are integrated by soldering to the conductor 31 having the notch 30 of an arbitrary depth formed at the edge while keeping the base of the terminal 22 in contact.

By alternately laminating such conductors 31 and insulators (not shown) as described above, a highly reliable terminal-welded laminated bus bar which is easy to design and manufacture can be obtained.

FIG. 4 is a diffusion exploded view showing a modified example of the conductors and terminals used in the terminal welding type laminated bus bar of the present invention.

The difference from the embodiment shown in FIG. 3 is that the base of the terminal is bent by 90 °.

The terminal 22a and the conductor 31 are integrated by soldering the terminal 22a having the bent base to the conductor 31 having the notch 30 formed in the edge. By alternately laminating such conductors 31 and insulators (not shown) as described above, a highly reliable terminal-welded laminated bus bar that is easy to design and manufacture can be obtained.

Further, by using the terminals 22a, the workability of soldering is improved and the contact area with the notch 30 is increased, so that the laminated bus bar is less likely to be peeled off during use, and the reliability is improved.

FIG. 5 is an explanatory view of another processing method of the conductor used for the terminal welding type laminated bus bar of the present invention.

An arbitrary number of tape conductors 40, 41, and 42 (three are shown in the drawing, but not limited) are arranged side by side and fixed to a jig (not shown), and a cutting tool 43 is used. The conductor having the concave portion 44 is obtained by cutting the terminal (see FIG. 1) 22 so as to have a predetermined depth (thickness of the terminal 22) with the size of the base of the terminal 22.

The same effect as in the above-described embodiment can be obtained by forming a terminal welding type laminated bus bar by alternately laminating the conductor 22 with the terminal 22 soldered on such a conductor and the tape strip insulator. .

FIG. 6 is an external perspective view showing another embodiment of the conductors and terminals used in the terminal welding type laminated bus bar of the present invention.

The difference from the above-described embodiment is that the conductor 2
The point is that the terminal 22 is directly welded (soldered) directly to the side surface of the conductor 20 without forming a groove, a notch, or a concave portion in 0.

As described above, even when the terminal 22 is soldered directly to the side surface of the conductor 20 and the tape-shaped insulator is alternately laminated to form a terminal-welded laminated bus bar, the same effect as in the above-described embodiment is obtained. The effect is obtained.

FIG. 7 is a sectional view showing another embodiment of the conductors and terminals used in the terminal welding type laminated bus bar of the present invention.

The difference from the above-described embodiment is that the conductor 5
Reference numeral 0 denotes an irregularly shaped strip having a thin edge portion 50a in the longitudinal direction, and the terminal 22 is welded (soldered) to the edge portion 50a.
That is the point.

Even if such a conductor and a tape-shaped insulator are laminated to form a terminal welding type laminated bus bar, the same effect as in the above-described embodiment can be obtained, and the conventional deformed strip technology can be used. Can be.

[0048]

In summary, according to the present invention, the following excellent effects are exhibited.

It is possible to provide a highly reliable terminal welding type laminated bus bar which is easy to design and manufacture.

[Brief description of the drawings]

FIG. 1 is an exploded exploded view showing one embodiment of a conductor and a terminal used in a terminal welding type laminated bus bar of the present invention.

FIGS. 2A and 2B are explanatory diagrams of a method of processing the conductor shown in FIG.

FIG. 3 is a diffusion exploded view showing another embodiment of a conductor and a terminal used in the terminal welding type laminated bus bar of the present invention.

FIG. 4 is a diffusion exploded view showing a modified example of conductors and terminals used in the terminal welding type laminated bus bar of the present invention.

FIG. 5 is an explanatory view of another processing method of the conductor used for the terminal welding type laminated bus bar of the present invention.

FIG. 6 is an external perspective view showing another embodiment of a conductor and a terminal used in the terminal welding type laminated bus bar of the present invention.

FIG. 7 is a cross-sectional view showing another embodiment of a conductor and a terminal used in the terminal welding type laminated bus bar of the present invention.

FIG. 8 is a sectional view showing a conventional example of a bus bar.

9 is a partial external perspective view of a conductor used in the bus bar shown in FIG. 8;

FIG. 10 is a partial external perspective view showing a conventional example of a bus bar.

FIG. 11 is a partial external perspective view showing another conventional example of a conductor used for the bus bar shown in FIG. 8;

[Explanation of symbols]

 20, 31 conductor 21 groove 22 terminal 30 notch 44 recess

Claims (5)

[Claims] 1. A terminal welding type laminate comprising a plurality of tape-shaped conductors, a plurality of terminals welded to the conductors and connected to an electric circuit, and a tape-shaped insulator alternately laminated with the conductors. In the bus bar, the terminal is welded to a groove formed on a side surface of the conductor, and the terminal welding type laminated bus bar is characterized in that: 2. A terminal welding type laminate comprising a plurality of tape-shaped conductors, a plurality of terminals welded to the conductors and connected to an electric circuit, and a tape-shaped insulator alternately laminated with the conductors. In the bus bar, the terminal is welded to a notch formed in an edge of the conductor, and the terminal welding type laminated bus bar is characterized in that: 3. A terminal welding type laminate comprising a plurality of tape-shaped conductors, a plurality of terminals welded to the conductors and connected to an electric circuit, and a tape-shaped insulator alternately laminated with the conductors. In the bus bar, the terminal is welded to a side surface of the conductor, and the terminal welding type laminated bus bar is characterized in that: 4. A terminal welding type laminate comprising a plurality of tape-shaped conductors, a plurality of terminals welded to the conductors and connected to an electric circuit, and a tape-shaped insulator alternately laminated with the conductors. In the bus bar, a terminal welding type laminated bus bar, wherein the conductor is an irregularly shaped strip having a thin edge portion in a longitudinal direction, and the terminal is welded to the edge portion. 5. The terminal-welded laminated bus bar according to claim 1, wherein the terminal is soldered to the conductor.