JP3697823B2 - Male tab structure accommodated in electrical junction box and connection structure between male tab and relay - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a male stub structure housed in an electrical connection box and a connection structure between the male stub and a relay, and more particularly, to a male stub connected to a micro-ISO-relay mounted on an electrical connection box via a relay terminal. In correspondence with the male tab shape, the relay terminal having a different width and length of the male tab fitting portion is used in common.
[0002]
[Prior art]
When mounting the relay in the electrical junction box and connecting the internal circuit of the electrical junction box, set the male tab protruding from the internal circuit to the appropriate position and connect it to the relay male tab via the female-female relay terminal. ing.
[0003]
Since the female-female relay terminal is set according to the type of male tab protruding from the relay body, when using a micro-ISO-relay with two types of male tabs with different widths, the relay terminal Two types are also required.
[0004]
That is, as shown in FIG. 5, the male tab 1b protruding from the main body 1a of the micro-ISO-relay 1 is for 250II, the male tab 1c is for 187, the male tab 1b for 250 is wide, while the male tab 1b is for 187 The male tab 1c has a narrow width.
[0005]
As shown in FIG. 5, two types of relay terminals 2A and 2B having different lengths and widths are used for the relay terminals fitted to the two types of male tabs 1b and 1c having different widths. Thus, when the lengths of the relay terminals 2A and 2B are different, the fitting position with the male tab of the internal circuit is different, and the width of the male tab needs to be changed. Therefore, conventionally, as shown in FIGS. 6A and 6B, it is necessary to provide two types of male tabs having different lengths and widths.
[0006]
6 (A) and 6 (B) show the pressure contact terminals 3 and 4 to be pressure-connected to the electric wire as the internal circuit. The pressure contact terminal 3 in FIG. 6 (A) is for 187, and the pressure contact terminal in FIG. 6 (B). 4 is for 250II. The press contact terminal 3 is provided with a male tab 3c that is narrower and shorter than the base 3b provided with the press contact blade 3a. On the other hand, the press contact terminal 4 protrudes from the base 4b provided with the press contact blade 4a and has a male tab 4c that is wider and higher in height, and the height D of the base portion 4b is equal to the height B of the base 3b of the press contact terminal 3. The dimension is shortened by L1 ′. Thus, by using the two types of press contact terminals 3 and 4 having different shapes, the relay terminal can be connected to the press contact terminals 3 and 4 arranged at the same position.
[0007]
[Problems to be solved by the invention]
Thus, since it is necessary to provide two types of male tabs on the internal circuit side, the number of parts increases, the assembly process becomes complicated, assembly equipment is required, and the cost increases.
[0008]
In the case of the type in which the bus bar of the internal circuit is laminated with the insulating plate, the height of the male tab protruding from the bus bar may be adjusted in a case where the thickness of the insulating plate is increased. 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 composed of a press contact terminal and an electric wire that is press-connected to the press contact terminal, there is a problem that the height of the press contact terminal cannot be easily adjusted.
[0009]
The present invention has been made in view of the above problems, and provides a male tab structure that can be shared even if the width and length of the relay terminal are different, and without providing a plurality of types of male tabs having different heights and widths. It is an object to make it possible to avoid the necessity of changing the height of the internal circuit.
[0010]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides, as a first invention, a male tab formed in a bus bar that is housed in an electrical junction box and constitutes an internal circuit, and the male tab has a fitting width and a fitting length. Are connected to multiple types of female relay terminals with different
The male tab is formed with a plurality of steps symmetrically spaced from the proximal side to the distal side on both sides in the length direction of the substantially rectangular flat plate, with the maximum width portion and distal end on the proximal side. Provide a minimum width on the side,
A male tab structure to be accommodated in an electrical connection box characterized in that any one of the above-mentioned stepped portions can be fitted and connected to the female relay terminal having a different fitting width and fitting length. providing.
Further, as a second invention, a pressure contact blade portion for wire pressure contact is formed by cutting out from a center of a base end surface of a pressure contact terminal which is housed in an electric connection box and press-contacted with an electric wire constituting an internal circuit. A male tab is formed, and the male tab is connected to a plurality of types of female relay terminals having different fitting widths and fitting lengths.
The male tab is formed with a plurality of steps symmetrically spaced from the proximal side to the distal side on both sides in the length direction of the substantially rectangular flat plate, with the maximum width portion and distal end on the proximal side. Provide a minimum width on the side,
A male tab structure to be accommodated in an electrical connection box characterized in that any one of the above-mentioned stepped portions can be fitted and connected to the female relay terminal having a different fitting width and fitting length. providing.
[0011]
As described above, when a plurality of step portions are provided to form portions having different widths, it is possible to cope with a relay terminal having a plurality of types of widths, and the relay terminal is locked to the step portion so that the length of the relay terminal is increased. Even if there is a difference, it can cope.
When the male tab is formed integrally with the bus bar as in the first invention, it is not necessary to adjust the height of the bus bar by changing the thickness of the insulating plate.
In addition, when the press contact terminal provided with the male tab is used as in the second invention, the electric wires constituting the internal circuit can be wired at the same height, and the height of the electric wire is determined according to the type of the relay terminal. No need to change. 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 .
[0012]
Specifically, as the female relay terminal, two types in which the dimensional difference of the male tab reference surface is different by L1 and the dimensional difference of the male tab fitting width are different by L2, are shared by the two types of female relay terminals. Can be connected,
As the stepped portion, a first stepped portion and a second stepped portion are formed, the maximum width portion from the base end to the first stepped portion, the medium width portion from the first stepped portion to the second stepped portion, and the second stepped portion. The width from the step portion to the tip is the minimum width portion, the length of the medium width portion is substantially the same as the dimensional difference L1 of the male tab reference plane, and the width difference between the width of the medium width portion and the minimum width portion is the male tab. it is set substantially equal to the dimensional difference L2 of Hamagohaba.
[0013]
In other words, this relay is applied when the relay mounted on the electrical junction box is a micro-ISO-relay. The relay terminal corresponding to the male tab for 250 II having a wide width and a long length is arranged at the first stage. The middle width part is fitted and connected to the relay terminal, and the relay terminal corresponding to the male tab for 187 having a short width and a short length comes into contact with the second step part. 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 mating surface with the relay terminal is set at an appropriate position according to the type of the relay terminal. In addition, it is possible to achieve electrical connection 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.
[0018]
Moreover, this invention connects as a 3rd invention the male tab of the micro-ISO-relay attached to an electrical junction box via the female type | mold relay terminal using the said male stub, and is a female-female type as a relay terminal. A relay terminal is used, and the relay terminal is different in male tab fitting width and length depending on the male tab having a different width and length of the relay. The connection structure of the male stub and the relay which are connected by changing is provided.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 and 2 show a first embodiment. In the first embodiment, a male tab 11 is provided on a pressure contact terminal 10. In the same manner as in FIG. 5, the press contact terminal 10 is press-connected to an electric wire wired in the electrical connection box, and has a micro-ISO relay mounted on the electrical connection box and two types of female-female relay terminals 2A, 2B. It is made to connect via.
[0020]
The press contact terminal 10 is formed by punching a conductive metal plate, and is formed on both sides 10a and 10b in the length direction of a substantially rectangular flat plate from the base end side X to the front end side Y. The step portion 10c and the second step portion 10d are formed, and the maximum width portion 10e is formed from the base end to the first step portion 10c. The maximum width portion 10e is a press contact terminal main body portion, and is formed by cutting out the press contact blade 17 for wire press contact from the center of the base end face.
[0021]
The middle width portion 10f from the first step portion 10c to the second step portion 10d above the maximum width portion 10e, and the minimum width portion 10g from the second step portion 10c to the tip are portions constituting the male tab 11.
[0022]
When the pressure contact terminal 10 is compared with the two pressure contact terminals 3 and 4 shown in FIGS. 6 (A) and 6 (B), the dimension D from the base end to the first step portion 10c is the dimension of the base of the pressure contact terminal 4. It is the same as D ′, and the dimension B from the base end to the second step portion 10 d is the same as the dimension B ′ of the base of the press contact terminal 3. The width C of the intermediate 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 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.
[0023]
Therefore, the length (height) L1 of the middle width portion 10d of the male tab 11 is the difference between the lengths of the base portions 3a and 4a of the two press contact terminals 3 and 4 shown in FIGS. Dimensional difference of the surface) is set to be the same as L1 ′, and the width difference L2 between the middle width portion 10f and the minimum width portion 10g is substantially the same as the width difference between the male tabs 3b and 4b of the press contact terminals 3 and 4. Is set.
[0024]
Since the press contact terminal 10 having the male tab 11 has the above shape, the press contact terminals 10 and 10 are connected by the press contact blade 17 to the electric wire at the same height as that wired in the electrical connection box, as shown in FIGS. Even if it carries out, it can connect the said female contact type | mold relay terminal 2A, 2B and the said press-contact terminals 10 and 10 connected to the male tab of the micro-ISO-relay mounted in this electrical junction box.
[0025]
That is, the lower end of the relay terminal 2B having a narrow male tab fitting portion and a short length is engaged with the second step portion 10d of the male tab 11 and the minimum width portion 10g as shown in FIG. Is electrically fitted into the female fitting portion of the relay terminal 2B. On the other hand, the lower end of the long relay terminal 2A having a wide male tab fitting portion is locked to the first step portion 10c of the male tab 11 as shown in FIG. 2B, and the middle width portion 10f is relayed. It is fitted into the female fitting part of the terminal 2A for electrical connection.
[0026]
Thus, when connecting to the relay from which the width and length of a male tab differ via a relay terminal, it is only necessary to provide one kind of press contact terminal 10 provided with the same shaped male tab 11, and the press contact terminal. There is no need to adjust the height position at which 10 is disposed.
[0027]
FIG. 3 shows a modification of the press contact terminal. The press contact terminal 10 ′ has a U-shaped maximum width portion 10e ′ constituting the press contact terminal main body portion, and is formed into opposing side portions 10e′-1 and 10e′-2. While providing press-contact blade part 17 ', male tab 11' provided with medium width part 10f 'and minimum width part 10g' is projected from connecting part 10e'-3. In addition, the shape of the press-contact terminal main body part which provides the press-contact blade part of a press-contact terminal is not limited to this modification, It can be made into arbitrary shapes.
[0028]
FIG. 4 shows a second embodiment, in which a male tab 21 is protruded from a bus bar 20 arranged in an electrical junction box. When the male tab 21 protrudes from the bus bar 20 as described above, the portion from which the male tab 21 protrudes from the bus bar 20 becomes the first step portion 21c, and the second step portion 21d is formed on the protruding male tab 21 to form the first step. A middle width portion 21f is formed between the portion 21c and the second step portion 21d, and a minimum width portion 21g is formed from the second step portion 21c to the tip.
[0029]
Thus, when the male tab 21 is protruded from the bus bar 20, the male tab 21 protruding from the bus bar 20 arranged at the same height position corresponds to the male tab shape on the relay side, as in the first embodiment. The relay terminals 15 and 16 having different shapes to be arranged can be connected.
[0030]
Therefore, conventionally, the height difference is adjusted by providing protrusions on an insulating plate (not shown) that is stacked with the bus bar 20 so that the dimensional difference of the male tab reference surface is made. However, this adjustment becomes unnecessary, and the material cost of the insulating plate is reduced. In addition, there is no need to worry about breakage or breakage of protrusions, and management becomes easier.
[0031]
【The invention's effect】
As is clear from the above description, according to the present invention, when the micro-ISO relay is mounted on the electrical junction box, the width and length of the male tab of the external terminal are different, so that the relays of different types are relayed. When connecting an internal circuit via a terminal, the male stub on the internal circuit side can be shared and used as one type.
[0032]
Therefore, compared with the case where a plurality of types of male tabs are conventionally used, the number of parts is reduced, the mold cost for molding the parts can be reduced, and the cost can be reduced. Furthermore, the number of assembling steps and assembly equipment costs can be reduced, and the cost can be greatly reduced.
[0033]
Furthermore, there is an advantage that it is not necessary to change the height of the electric wires and / or bus bars constituting the internal circuit of the electric junction box.
[Brief description of the drawings]
FIG. 1 is a front view of a pressure contact terminal including a male tab according to a first embodiment.
FIGS. 2A and 2B are schematic views showing a connection state of 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 a second embodiment.
FIG. 5 is a cross-sectional view showing a conventional example.
6A and 6B are front views of a pressure contact terminal having a male tab of a conventional example.
[Explanation of symbols]
10 pressure contact terminal 10c first step portion 10d second step portion 10e maximum width portion (pressure contact terminal body)
10f Medium width portion 10g Minimum width portion 11 Male tab 12 Electrical connection box 13 Electric wire 14 Micro / ISO / Relay 16, 16 Relay terminal 17 Pressure contact blade 20 Bus bar 21 Male tab

Claims (4)

A male tab that is formed in a bus bar that is housed in an electrical junction box and constitutes an internal circuit. The male tab is connected to a plurality of types of female relay terminals having different fitting widths and fitting lengths. ,
The male tab is formed with a plurality of steps symmetrically spaced from the proximal side to the distal side on both sides in the length direction of the substantially rectangular flat plate, with the maximum width portion and distal end on the proximal side. Provide a minimum width on the side,
A male tab structure accommodated in an electrical connection box, wherein any one of the above-mentioned stepped portions is used in common so as to be fitted and connectable to the female relay terminal having a different fitting width and fitting length . A pressure contact blade portion for wire pressure welding is cut out from the center of the base end face of the pressure contact terminal that is housed in the electrical junction box and press-contacted with the electric wire constituting the internal circuit, and a male tab is formed on the distal end side. , Which is connected to multiple types of female relay terminals with different mating widths and mating lengths,
The male tab is formed on the both sides in the length direction of a substantially rectangular flat plate from the base end side to the tip end side, with a plurality of stepped portions formed symmetrically with a required interval, with the maximum width portion and tip end on the base end side. Provide a minimum width on the side,
A male tab structure accommodated in an electrical junction box, wherein any one of the above-mentioned stepped portions is used so as to be fitted and connectable to the female relay terminal having a different fitting width and fitting length. As the female relay terminal, two types in which the dimensional difference of the male tab reference plane is different by L1 and the dimensional difference of the male tab fitting width is different by L2 can be shared and connected to the two types of female relay terminals. hand,
As the stepped portion, a first stepped portion and a second stepped portion are formed, the maximum width portion from the base end to the first stepped portion, the medium width portion from the first stepped portion to the second stepped portion, and the second stepped portion. The width from the step to the tip is the minimum width, the length of the medium width is substantially the same as the dimensional difference L1 of the male tab reference plane, and the width difference between the width of the medium width and the minimum width is the male tab. The male tab structure accommodated in the electrical junction box according to claim 1 or 2, which is set to be substantially the same as the dimensional difference L2 of the fitting width. Using the male tab according to any one of claims 1 to 3,
It connects two types of male tabs of micro / ISO / relay mounted on the electrical junction box via the female relay terminal, using a female-female relay terminal as a relay terminal,
The relay terminal is different in male tab fitting width and length depending on the male tab in which the width and length of the relay are different,
A connection structure between a male tab and a relay, which are fitted and connected to different width portions with respect to the male tab accommodated in the electrical junction box.

Images