JPH11260510A - Junction terminal and electric connection box using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate connection even if the thicknesses of both terminals to be connected together are significantly different from each other by arranging respective insertion parts opposite to each other at both ends of a junction terminal body of which respective insertion parts are set different in width from each other. SOLUTION: In connecting a relay 19 to a bus bar 21, a terminal 15 of the bus bar 21 is first inserted into a lower insertion part 20 of a junction terminal body 10, and it is fixed at the lower side in the junction terminal body 10, being brought into contact with a protruding part 17 of a base 11 and the edge of a lower are piece 13b. Then, a terminal 14 of the relay 19 is inserted into an upper insertion part 18, and it is fixed at the upper side in the junction terminal body 10, being brought into contact with a protruding part 16 of the base 11 and an upper arc piece 12b. In this case for the junction terminal body 10, the width A of the upper insertion part 18 is so set as to correspond to the thickness of the terminal 14 of the relay 19 and the width B of the lower insertion part 20 is so set as to correspond to the thickness of the terminal 15. Thereby, the terminal 14, 15 having respective thicknesses different from each other significantly can easily be connected together.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a relay terminal for electrically connecting terminals of a bus bar and electrical components, and an electric junction box using the relay terminal.

[0002]

2. Description of the Related Art Conventionally, when connecting a terminal of a relay and a terminal of a bus bar for wiring, for example, a relay terminal 41 as shown in FIGS. 7 and 8 is used. The relay terminal 41 is a so-called Faston connection system, and a pair of upper and lower arc pieces 4 is provided on both sides of a flat base 42.
3a, 43b, 44a, and 44b extend in a semicircle toward the center of the base 42. And each arc piece 4
The gap formed between one end of each of 3a, 43b, 44a, and 44b and the base 42 becomes the insertion portion 49, 50 into which the terminal 46 of the relay 45 or the terminal 48 of the bus bar 47 is inserted as an electrical component. I have.

The thickness of the terminal 46 of the relay 45 connected by the relay terminal 41 is generally set to about 0.8 mm. On the other hand, the thickness of the terminal 48 of the bus bar 47 is determined by the size of the tab connected to the wire harness, and is generally set to 0.64 mm or 0.8 mm. And the relay terminal 41
The insertion portions 49 and 50 are set to a width that allows the terminal 46 having a maximum of 0.8 mm to be inserted. Therefore, when the thickness is 0.8
mm of the terminal 46 of the relay 45 and a thickness of 0.64 m.
When connecting the m busbar terminals 48, a process of hitting the protruding portion 51 was performed on the center side of the thin terminal 48. As a result, the apparent thickness of the one terminal 48 is adjusted from 0.64 mm to 0.8 mm, and the two insertion portions 4 are adjusted.
The relay terminals 41 having the same widths 9 and 50 can cope with them.

[0004]

However, in recent years, the electrical load has increased due to the increase in various functions in automobiles, and simplification of the circuit and low cost have been demanded. As a result, a relay capable of handling a large current has been developed. For this reason, the size of the terminal corresponding to this became large, and a terminal having a thickness of 1.2 mm also appeared. As a result, the terminal 48 of the bus bar 47 described above
It is difficult to deal with this by forming the protruding portion 51 by punching out the center portion of the projection.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to enable easy connection even when the thickness of both terminals to be connected is significantly different. .

[0006]

In order to achieve the above object, according to the first aspect of the present invention, an insertion portion for inserting a bus bar and a terminal of an electrical component is provided in a relay terminal body, and each terminal is provided in each insertion portion. Are inserted in the relay terminal to electrically connect the terminals, and the width of each insertion portion is set to be different.

According to a second aspect of the present invention, in the relay terminal according to the first aspect, the respective insertion portions are opposed to each other at both ends of the relay terminal body. According to a third aspect of the present invention, in the relay terminal according to the first or second aspect, the relay terminal body includes a plate-shaped base and an arc piece extending from both sides of the base toward the center. The insertion portion is formed between the arc piece and the base.

According to a fourth aspect of the present invention, in the relay terminal according to the first or second aspect, the relay terminal main body is formed from a base formed in a square tubular shape and an opening edge of the base. The insertion portion is formed between the tongue piece and the base.

According to a fifth aspect of the present invention, in the relay terminal of the second aspect, the insertion portion is provided in a pair, and the shapes of the one insertion portion and the other insertion portion are different from each other. It is.

According to a sixth aspect of the present invention, a bus bar and an electrical component are provided in a case, and the terminal of the bus bar and the electrical component is connected to the relay terminal according to any one of the first to fifth aspects. Is connected via the.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. 1 and 2
As shown in FIG. 1, the case 6 of the electric connection box 5 is formed in a substantially box shape with an open upper surface made of synthetic resin, and a locking portion 8 is formed at the opening edge of the case 6. A cover 7 is detachably attached to the upper opening of the case 6, and the lower edge of the cover 7 is engaged with the locking portion 8 so that the cover 7 is locked and held on the case 6. Has become. A mounting seat 9 is formed on the upper surface of the bottom wall of the case 6.
A bus bar 21 made of a metal plate is provided above.
A detachable relay 19 as an electrical component is electrically connected to the terminal 15 of the bus bar 21 via the relay terminal body 10.

The relay terminal body 10 is of a faston connection type. In the relay terminal body 10, a pair of upper arc pieces 12 are respectively provided from both upper and lower sides of a planar base 11.
a, 12b and lower arc pieces 13a, 13b extend toward the center of the base 11 so as to draw a semicircle. The upper and lower arc pieces 12a, 12b, 13a, 13b
Among them, the gap between the ends of the upper arc pieces 12a, 12b and the base 11 is set wider than the gap between the ends of the lower arc pieces 13a, 13b and the base 11. That is,
The upper gap is the relay 19 having a thickness of 1.2 mm.
Of the bus bar 21 having a thickness of 0.64 mm or 0.8 mm.
Is set to a width B in which the terminal 15 can be press-fitted.

The relay terminal body 1 is provided above and below the base 11.
Protrusions 16 and 17 projecting toward the inside of 0 are formed. Then, as shown in FIG. 2, the terminal 14 of the relay 19 is inserted into the upper insertion portion 18 which is the upper gap, and the terminal 15 of the bus bar 21 is inserted into the lower insertion portion 20 which is the lower gap.
Is inserted, the relay 19 and the bus bar 21 are electrically connected via the relay terminal main body 10.

When connecting the relay 19 and the bus bar 21 using the relay terminal body 10, first, the terminal 1 of the bus bar 21 is inserted into the lower insertion portion 20 of the relay terminal body 10.
Insert 5 Thereby, the terminal 15 of the bus bar 21
Is fixed to the lower side in the relay terminal body 10 with one surface in contact with the protrusion 17 of the base 11 and the other surface in contact with the ends of the lower arc pieces 13a, 13b. Next, the relay 19 is inserted into the upper insertion portion 18 of the relay terminal body 10.
Terminal 14 is inserted. Thus, the terminal 14 is fixed to the upper side in the relay terminal main body 10 with one surface thereof being in contact with the protrusion 16 of the base 11 and the other surface being in contact with the upper arc pieces 12a, 12b. . As a result, the relay 19 and the bus bar 21 are electrically connected via the relay terminal main body 10 and function as electrical components.

Therefore, the relay terminal body 10 of this embodiment
According to this, the following effects are obtained. In this relay terminal body 10, the width A of the upper insertion portion 18
Are set to correspond to the thickness of the terminal 14 of the relay 19, and the width B of the lower insertion portion 20 is set to correspond to the thickness of the terminal 15. Therefore, terminals 14 and 15 having greatly different thicknesses can be easily connected to each other.
Further, at this time, unlike the related art, it is not necessary to process the thinner terminal 15 by punching out so that the apparent thickness is aligned with the thicker terminal 14. Therefore, the shape of the terminal 15 can be simplified, and both terminals 14,
15 can be easily connected to each other.

Since the pair of insertion portions 18 and 20 are opposed to each other at both ends of the relay terminal main body 10, the connection between the relay terminal main body 10 and the terminals 14 and 15 can be easily performed. The relay terminal body 10 is composed of a plate-shaped base 11 and the base 1
Upper and lower circular arc pieces 12 extending from both sides of 1 toward the center side
a, 12b, 13a, and 13b. And
Upper and lower arc pieces 12a, 12b, 13a, 13b and base 1
The upper and lower insertion portions 18 and 20 were formed between them. Therefore, both terminals 14 and 15 can be reliably connected.

Even when the thickness of the terminals 14 and 15 is largely changed, an extra manufacturing step of adjusting the thickness of the terminal 15 by punching out or the like can be omitted. Therefore, the manufacturing cost of the entire electric connection box 5 can be reduced by reducing the number of manufacturing steps.

(Second Embodiment) Next, a second embodiment of the present invention will be described focusing on parts different from the first embodiment.

As shown in FIGS. 3 and 4, in the relay terminal body 22 of this embodiment, an upper base 23 is formed in a rectangular tube shape, and an elastic tongue piece 25 is formed from an upper opening edge 24 thereof. It extends toward the inside of the base 23. The relay terminal body 22 is called a tongue piece connection system.
Is in contact with On the side surface of the base 23 facing the tongue piece 25, two protrusions 28a, 28b are formed toward the inside of the base 23, and an upper insertion portion 29 is provided between the protrusions 28a, 28b and the tongue piece 25. Is formed. The interval between the narrowest portions of the upper insertion portion 29 is a relay 19 having a thickness of 1.2 mm.
The terminal 14 is set to have a width C capable of lightly pressing the terminal 14 against the elastic force of the tongue piece 25. The lower side of the relay terminal body 22 has the same configuration as the lower side of the relay terminal body 10. Therefore, the same portions are denoted by the same reference numerals.

Therefore, in the second embodiment, substantially the same effects as in the first embodiment can be exerted. Further, in the second embodiment, when the upper and lower sides of the relay terminal body 22 are configured by different connection methods, when the relay terminal main body 22 is connected to the terminals 14 and 15, the upper and lower directions thereof can be easily determined. Can be.

(Third Embodiment) Next, a third embodiment of the present invention will be described focusing on parts different from the first embodiment.

As shown in FIGS. 5 and 6, both the upper and lower portions of the relay terminal body 30 may be configured by a tongue connection method. In this case, the square tubular bases 31 and 32 are formed vertically symmetrically, the tongue piece 34 extends downward from the upper opening edge 33 of the base 31, and the tongue piece 36 extends from the lower opening edge 35 of the base 32. Extend upward. Also, protrusions 37a, 37b, 38a, 38b are formed on the bases 31, 32, respectively.
Then, the width D of the upper insertion portion 39 between the upper tongue piece 34 and the protrusions 37a and 37b is set to the lower tongue piece 36 and the protrusion 38.
The width is set so as to be larger than the width E of the lower insertion portion 40 between a and 38b.

Therefore, in the third embodiment, substantially the same effects as in the first embodiment can be exerted. Further, in the third embodiment, the terminals 1 of the relay 19 having different thicknesses with respect to both the insertion portions 39 and 40.
4 and the terminal 15 of the bus bar 21 can be smoothly attached and detached.

The above embodiments may be configured as follows. In addition to connecting the terminal 14 of the relay 19 and the terminal 15 of the bus bar 21, the present invention is embodied in that the terminal 15 of the bus bar 21 is connected to a terminal of a fuse as an electrical component.

The width of the upper insertion portions 18, 29, 39 is smaller than the width of the lower insertion portions 20, 40.

[0026]

According to the first aspect of the present invention, since the widths of the insertion portions are set to be different from each other, the terminals can be easily connected to each other even when the thicknesses of the terminals are significantly different. .

According to the second aspect of the present invention, since the insertion portions are formed at both ends of the relay terminal body, the connection between the relay terminal body and the terminal can be easily performed. Claim 3
According to the invention described in (1), since the insertion portion is provided between the end portion and the base portion of the arc piece, both terminals can be reliably connected.

According to the fourth aspect of the present invention, the operation of attaching and detaching the terminal to and from the insertion portion can be performed smoothly.
According to the fifth aspect of the present invention, the connection direction of the relay terminal main body to the terminals having different thicknesses is not mistaken.

According to the sixth aspect of the present invention, even when the thickness of the bus bar and the terminal of the electrical component are largely changed, an extra manufacturing process accompanying the change can be reduced, so that the entire electric connection box can be reduced. Manufacturing costs can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a relay terminal according to a first embodiment of the present invention.

FIG. 2 is a partially cutaway sectional view showing the inside of the electric junction box.

FIG. 3 is a perspective view showing a relay terminal according to a second embodiment.

FIG. 4 is a sectional view showing a state where the terminals are connected to each other via the relay terminal.

FIG. 5 is a perspective view showing a relay terminal according to a third embodiment.

FIG. 6 is a sectional view showing a state where the terminals are connected via the relay terminal.

FIG. 7 is a perspective view showing a relay terminal and a terminal connected to the relay terminal in the related art.

FIG. 8 is a perspective view showing a state in which the terminals are connected via the relay terminal.

[Explanation of symbols]

6 case, 10, 22, 30 ... relay terminal body, 11,
23, 31, 32: Base, 12a, 12b: Upper arc piece, 13a, 13b: Lower arc piece, 14, 15: Terminal,
18, 20, 29, 39, 40 ... insertion part, 24, 33,
35: Opening edge, 25, 34, 36: Tongue piece,

Claims (6)

[Claims] 1. A relay terminal for inserting a bus bar and terminals of electrical components into a relay terminal body, and inserting the terminals into the respective insertion portions to electrically connect the terminals.
A relay terminal in which the width of each insertion portion is set to be different. 2. The relay terminal according to claim 1, wherein each of the insertion portions is opposed to both ends of the relay terminal body. 3. The relay terminal body includes a plate-shaped base and an arc piece extending toward the center from both sides of the base, and the insertion portion is formed between the arc piece and the base. The relay terminal according to claim 1 or 2, wherein 4. The relay terminal body includes a base formed in a square tubular shape, and a tongue extending from the opening edge of the base into the base. The insertion portion is provided between the tongue and the base. The relay terminal according to claim 1 or 2, wherein 5. The relay terminal according to claim 2, wherein a pair of the insertion portions is provided, and the shapes of the one insertion portion and the other insertion portion are different from each other. 6. A bus bar and electrical components are provided in the case,
An electrical connection box configured to connect the bus bar and the terminal of the electrical component via the relay terminal according to any one of claims 1 to 5.