JPH10255885A - Male tab structure housed in junction box and connecting structure of this male tab and relay - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of part items, and reduce the cost by forming plural step parts at necessary intervals over the tip side from the base end side of a male tab, and fitting and connecting it by making common use even if a fitting width and length of a female type relay terminal change. SOLUTION: The lower end of a relay terminal on which a width of a male tab fitting part is narrow and a length is short, is locked on a second stage part 10d of a male tab 11, and the smallest width part 10g is fitted in a female type fitting part of the relay terminal, and is electrically connected. On the other hand, the lower end of a relay terminal with a wide and long male tab fitting part, is locked on a first stage part 10c of the male tab 11, and an intermediate width part 10f is fitted in the female type fitting part of the relay terminal, and is electrically connected. Therefore, when it is connected to a relay different in width and length of the male tab through the relay terminal, a required process is only to arrange one kind of pressure contact terminal 10 having the male tab 11 of the same shape, and there is no need to adjust even a height position where the pressure contact terminal 10 is arranged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a male stub structure housed in an electric junction box and a connection structure between the male stub and a relay, and more particularly to a micro-IS mounted on the electric junction box.
O. A male tab connected to a relay via a relay terminal, which is commonly used for relay terminals having different widths and lengths of male tab fitting portions corresponding to the male tab shape of the relay. It is.

[0002]

2. Description of the Related Art When a relay is mounted on an electric connection box and connected to an internal circuit of the electric connection box, a male tab protruding from the internal circuit is set at an appropriate position, and the relay is connected via a female-female type relay terminal. The male tab is connected.

Since the female-female relay terminal is set according to the type of male tab protruding from the main body of the relay, there are two types of male tabs having different widths.
When using an ISO relay, two types of relay terminals are required.

That is, as shown in FIG.
The male tab 1b protruding from the main body 1a of the O relay 1
For 50II, the male tab 1c is for 187, the male tab 1b for 250 is wide, while the male tab 1c for 187 is narrow.

[0005] The two types of male tabs 1b having different widths described above,
As shown in FIG. 5, two types of relay terminals 2A and 2B having different lengths and widths are also used as the relay terminals to be fitted with 1c. Thus, if the length of the relay terminals 2A, 2B is different, the fitting position of the internal circuit with the male tab is different,
In addition, it is necessary to change the width of the male tab. Therefore, conventionally, as shown in FIGS. 6A and 6B, it was necessary to provide two types of male tabs having different lengths and widths.

FIGS. 6 (A) and 6 (B) show crimping terminals 3 and 4 for crimping connection with an electric wire serving as an internal circuit. The crimping terminal 3 in FIG. 6 (A) is for 187, and FIG. The press contact terminal 4 is for 250II. The press contact terminal 3 is provided with a male tab 3c which is narrower and shorter than the base 3b provided with the press contact blade 3a. On the other hand, the press contact terminal 4 is a base 4b provided with a press contact blade 4a.
A male tab 4c having a larger width and a larger height is protruded, and the height D of the base 4b is shorter than the height B of the base 3b of the press contact terminal 3 by the dimension L1 '. In this way, by using the two types of press contact terminals 3 and 4 having different shapes, the relay terminals can be connected to the press contact terminals 3 and 4 arranged at the same position.

[0007]

As described above, since it is necessary to provide two types of male tabs on the internal circuit side, the number of parts is increased, the assembly process is complicated, assembly equipment is required, and the cost is increased. There was a problem.

In order to solve the above problem, in the case of a type in which the bus bar of the internal circuit is laminated with an insulating plate, the thickness of the insulating plate may be increased to adjust the height of the male tab protruding from the bus bar. However, also in this case, it is necessary to increase the thickness of a required portion of the insulating plate, and there is a problem that the number of parts of the insulating plate increases. Further, when the internal circuit is constituted by the press contact terminals and the electric wires to be press connected to the press contact terminals, there is a problem that the height of the press contact terminals cannot be easily adjusted.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides a male tab structure that can be used in common even if the width and length of the relay terminals are different, and a plurality of male tabs having different heights and widths are provided. So that there is no need to provide any kind, and
The task is to make it unnecessary to change the height of the internal circuit.

[0010]

According to a first aspect of the present invention, there is provided a male stub that is housed in an electrical junction box and connected to a female relay terminal. On both sides in the length direction, a plurality of steps are formed at required intervals from the base end side to the distal end side, and a portion having a gradually reduced width is provided, and a fitting width of the female relay terminal is provided. Also, the present invention provides a male tub structure accommodated in an electric connection box, wherein the male tub can be commonly connected even if the fitting length changes.

As described above, when a plurality of steps are provided to form portions having different widths, it is possible to cope with relay terminals having a plurality of widths, and the relay terminals are locked to the steps, so that the relay terminals are locked. Even if the length of the terminal is different, it can cope.

More specifically, as the female relay terminal,
The two dimensional differences of the male tab reference surface are different by L1 and the dimensional difference of the male tub fitting width is different by L2, and can be connected to the two types of female relay terminals in common. Forming a first step portion and a second step portion, a maximum width portion from the base end to the first step portion, an intermediate width portion from the first step portion to the second step portion, and a second step portion to the tip end Is the minimum width portion, the length of the middle width portion is substantially the same as the dimensional difference L1 of the male tab reference surface, and the width difference between the width of the middle width portion and the minimum width portion is the dimension of the male tab fitting width. The difference is set substantially equal to the difference L2 (claim 2).

That is, the present invention is applied to the case where the relay mounted on the electric junction box is a micro-ISO relay. The relay terminal corresponding to the male tab for 250II having a wide width and a long length is provided with a tip thereof. The relay terminal corresponding to the male tab for 187 having a small width and a short length has the tip thereof connected to the first step portion and the middle width portion is fitted and connected to the relay terminal. And the minimum width portion is fitted and connected to the relay terminal. By fitting the relay terminal with the male tab in this way, even if the base end of the maximum width portion of the male tab is the same height, the fitting surface with the relay terminal is set to an appropriate position according to the type of the relay terminal. The electrical connection can be achieved by fitting at a portion having a width corresponding to the type of the relay terminal.
That is, one type of male tab can correspond to two types of relay terminals having different widths and heights.

In the wide portion on the base end side, a press contact blade portion for wire press contact is cut out from the center of the base end face, and a male tab is connected to a press contact terminal for press contact with a wire constituting an internal circuit of the electric connection box. (Claim 3).

By using the pressure contact terminal provided with the male tab, the wires constituting the internal circuit can be wired at the same height, and it is not necessary to change the height of the wires according to the type of the relay terminal. Alternatively, when the wire height is not changed, it is not necessary to use a plurality of types of press contact terminals having different male tab shapes.

Alternatively, the male tab is formed on a bus bar constituting an internal circuit of the electric connection box.

As described above, when the male tab is formed integrally with the bus bar, it is not necessary to adjust the height of the bus bar by changing the thickness of the insulating plate.

Further, the present invention provides a micro ISO which is attached to an electric junction box via a female type relay terminal by using the male tab according to any one of the above-mentioned claims 1 to 4.
・ Connects to the male tab of the relay, and uses a female-female relay terminal as a relay terminal, and the relay terminal has a different male tab fitting width and length according to the male tab having a different width and length of the relay. This provides a connection structure between the male tab and the relay, which are connected to the relay terminal by changing the fitting portion of the male tab.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a first embodiment. In the first embodiment, a male tab 11 is provided on a press contact terminal 10. The pressure contact terminal 10 is press-connected to the electric wire to be wired in the electric connection box as in FIG. 5, and the micro-ISO relay mounted on the electric connection box and the two types of female-female relay terminals 2A and 2B are connected. Is to be connected via

The press contact terminal 10 is formed by stamping a conductive metal plate, and extends from the base end X to the front end Y on both sides 10a and 10b in the longitudinal direction of the substantially rectangular flat plate. The first step portion 10c and the second step portion 10d are formed, and a portion from the base end to the first step portion 10c is a maximum width portion 10e. This maximum width portion 10e is a press contact terminal body portion,
A press-contact blade 17 for press-connecting an electric wire is cut out from the center of the base end face.

The first step portion 10 above the maximum width portion 10e
middle width portion 10f from c to second step portion 10d, second step portion 1
The minimum width portion 10g from 0c to the tip is a portion constituting the male tab 11.

The above-mentioned press contact terminal 10 and FIG.
Comparing the two press contact terminals 3 and 4 shown in (B), the dimension D from the base end to the first step portion 10c is the same as the dimension D ′ of the base of the press contact terminal 4, and the second step from the base end to the second step The dimension B up to the portion 10 d is the same as the dimension B ′ of the base of the press contact terminal 3. Further, the width C of the middle width portion 10f between the first step portion 10c and the second step portion 10d is the same as the width C 'of the male tab of the press contact terminal 4, and the width C of the minimum width portion 10g from the second step portion 10d to the tip end. The width A is the same as the width A ′ of the male tab of the press contact terminal 3.

Therefore, the length (height) L1 of the middle width portion 10d of the male stub 11 is the difference between the lengths of the base portions 3a and 4a of the two press contact terminals 3, 4 shown in FIGS. 7A and 7B. (Dimensional difference of male tub reference surface) L1 'is set to be the same, and width difference L2 between the width of middle width portion 10f and the width of minimum width portion 10g is determined by pressing terminal
And the male tabs 3b and 4b are set to have substantially the same dimensional difference in width.

Since the press contact terminal 10 provided with the male tab 11 has the above-mentioned shape, as shown in FIGS.
Even when the pressure contact terminals 10 and 10 are connected, the female-female type relay terminals 2A and 2B connected to the male tab of the micro-ISO relay mounted on the electric connection box can be connected to the pressure contact terminals 10 and 10. .

That is, as shown in FIG. 2A, the lower end of the relay terminal 2B, in which the width of the male tab fitting portion is small and short, is locked to the second step portion 10d of the male tab 11.
The minimum width portion 10g is internally fitted in the female fitting portion of the relay terminal 2B and is electrically connected. On the other hand, the lower end of the long and long relay terminal 2A of the male tab fitting portion is locked to the first step portion 10c of the male tab 11, as shown in FIG.
The middle width portion 10f is internally fitted into the female fitting portion of the relay terminal 2A and is electrically connected.

As described above, when connecting to relays having different widths and lengths of the male tabs via the relay terminals, it is only necessary to provide one type of press contact terminal 10 having the male tab 11 having the same shape, and In addition, it is not necessary to adjust the height position at which the press contact terminals 10 are arranged.

FIG. 3 shows a modification of the press contact terminal. The press contact terminal 10 'is a maximum width portion 10e' constituting a press contact terminal body.
Are formed in a U-shape, and opposing side portions 10e′-1 and 10e′-1
e′-2 and the press-contact blade 17 ′, and the connecting portion 1
A male tab 11 'having a middle width portion 10f' and a minimum width portion 10g 'is protruded from 0e'-3. In addition, the shape of the press contact terminal main body portion provided with the press contact blade portion of the press contact terminal is not limited to this modified example, and may be an arbitrary shape.

FIG. 4 shows a second embodiment, in which a male stub 21 protrudes from a bus bar 20 arranged in an electric junction box. When the male stub 21 is protruded from the bus bar 20 in this manner, a portion where the male stub 21 protrudes from the bus bar 20 becomes a first step portion 21c, and a second step portion 21d is formed on the protruded male stub 21 to form the first step portion 21d. Part 21c and second step part 2
A portion between 1d is a middle width portion 21f, and a portion from the second step portion 21c to the tip is a minimum width portion 21g.

As described above, the male tab 2 is moved from the bus bar 20.
When the terminal 1 is protruded, similarly to the first embodiment, a relay terminal having a different shape is disposed corresponding to the male tab on the relay side with respect to the male tab 21 protruding from the bus bar 20 disposed at the same height position. 15, 16 can be connected.

Therefore, conventionally, the dimensional difference of the male tub reference surface has been height-adjusted by providing a projection on an insulating plate (not shown) which is stacked and arranged on the bus bar 20, but this adjustment becomes unnecessary.
The material cost of the insulating plate is reduced, and there is no fear of breakage or breakage of the projections, and the management becomes easier.

[0031]

As is apparent from the above description, according to the present invention, when the micro-ISO relay is mounted on the electric connection box, the width and length of the external terminal male tabs are different. When connecting internal circuits via different types of relay terminals, one type of male tab on the internal circuit side can be used in common.

Therefore, as compared with the case where a plurality of types of male stubs are conventionally used, the number of parts is reduced, the cost of the mold for molding the parts can be reduced, and the cost can be reduced.
Further, assembling man-hours and assembling equipment costs can be reduced, and a significant cost reduction can be achieved.

Further, there is an advantage that it is not necessary to change the height of the electric wires and / or the bus bars constituting the internal circuit of the electric connection box.

[Brief description of the drawings]

FIG. 1 is a front view of a press contact terminal including a male tab according to a first embodiment.

FIGS. 2A and 2B are schematic diagrams showing a connection state between the male tab and the relay terminal.

FIG. 3 is a perspective view showing a modification of the first embodiment.

FIG. 4 is a front view of the second embodiment.

FIG. 5 is a sectional view showing a conventional example.

FIGS. 6A and 6B are front views of a press-contact terminal having a male tab of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Pressure contact terminal 10c 1st step part 10d 2nd step part 10e Maximum width part (pressure contact terminal main body) 10f Middle width part 10g Minimum width part 11 Male tab 12 Electric connection box 13 Electric wire 14 Micro / ISO / Relay 16, 16 Relay terminal 17 Pressure welding blade 20 Bus bar 21 Male tab

Claims (5)

[Claims] 1. A male tab to be housed in an electrical junction box and connected to a female relay terminal, comprising a plurality of steps formed on both sides in the longitudinal direction of a substantially rectangular flat plate from a base end to a distal end. Are formed at required intervals to provide a stepped-down portion, so that even if the fitting width and fitting length of the female relay terminal are changed, the fitting and connection can be shared. Male tab structure housed in the characteristic electrical junction box. 2. As the female relay terminal, two types are used in which the dimensional difference of the male tab reference surface is L1 and the dimensional difference of the male tab fitting width is different by L2, and the two types are commonly used for the female type relay terminals. A first step portion and a second step portion are formed as the step portion, from the base end to the first step portion, the maximum width portion, and from the first step portion to the second step portion. Is the middle width part, the second step part to the tip is the minimum width part,
The length of the middle width portion is substantially the same as the dimensional difference L1 of the male tub reference surface, and the width difference between the middle width portion and the minimum width portion is substantially the same as the dimensional difference L2 of the male tab fitting width. The male tab structure which is set in the electrical junction box according to claim 1 and set. 3. A crimping terminal for crimping an electric wire constituting an internal circuit of an electric connection box by forming a notch blade portion for crimping an electric wire from the center of the base end surface at the wide portion on the base end side. A male stub structure housed in the electric connection box according to claim 1 or 2, wherein a male stub is formed on the electrical connection box. 4. The male tab structure for accommodating in the electric connection box according to claim 1, wherein the male tab is formed on a bus bar constituting an internal circuit of the electric connection box. 5. The male tab according to any one of claims 2 to 4, wherein the male tab is connected to a micro-ISO / relay male tab mounted on an electrical junction box via a female relay terminal. A female-female relay terminal is used as a relay terminal, and the relay terminal has a male tab having a different width and a different length according to a male tab having a different width and length of the relay. On the other hand, the connection structure between the male tab and the relay, which are connected by changing the fitting part of the male tab.