JPH0141180Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention is useful for connecting plate-shaped busbars (or their tab terminals) in relay blocks and connecting terminals of electronic components such as relays and fuses. This invention relates to improvements in relay terminals for connecting male terminals of.

[Conventional technology]

As shown in FIG. 4, a blade-type fuse used in an automobile's electrical system has an H-shaped fuse body 3 whose head part is covered with an insulator 4, in which the upper ends of a pair of blade-type terminals 1 are joined by a fusing part 2. It has the following configuration.

Further, electrical connection boxes such as relay blocks and junction blocks are housed in a case 8 by stacking a plurality of wiring boards 7 on which busbars 5 constituting a circuit network are arranged on an insulating substrate 6, as shown in FIG. It is covered with an insulating cover 11 provided with a relay holder 9 and a fuse holder 10, and tab terminals 12 are provided at key points on the bus bar 5 for connection to electronic components such as the relays and fuses and for branch connections. ing.

Since both the blade-type terminal 1 and the tab terminal 12 are plate-shaped male terminals, a female terminal for relaying is required.
Conventional female-female terminals 13, 1 as shown in FIG. 6a, b
4 was known (Jitko No. 60-13190).

However, with the structure of the female-female terminals 13 and 14 described above, a 1:1 connection, that is, only one tab terminal and one blade-type terminal can be connected.

However, the busbars 5 of the wiring board 7 require tab terminals for connections such as wiring harness connectors in addition to fuse and relay connections, so a large number of busbars and tab terminals are crowded on the wiring board. However, there were problems such as an increase in the proportion of busbars carrying the same current, complicating the circuit configuration, and necessitating multilayer wiring boards to alleviate this problem.

[Problem that the invention attempts to solve]

In view of the above problems, the present invention provides a relay terminal that can connect multiple plate-shaped male terminals at the same time.
The purpose of this invention is to simplify the circuit configuration of a wiring board.

[Means for Solving the Problems] The present invention will be explained with reference to the drawings. In Fig. 1, reference numeral 20 denotes a base plate made of thin sheet metal, and at its lower end, upstanding side walls 21a on both sides are located inside each other. A pair of first elastic curved arms 21 are formed by being bent into a U-shape. Reference numeral 22 denotes a folded plate extending from the upper end of the substrate section to the center, and is overlapped with the upper half of the substrate section 20 to form a folded overlapping plate section 23. Two vertical grooves 24 are provided in the folded plywood portion 23.

Reference numeral 25 denotes a horizontal substrate section extending perpendicularly to the substrate section 20 from the tip of the folding plate 22, and a pair of second elastic curved arms 26 are formed on both sides of the tip.

27 is a folded horizontal plate which is folded and overlapped from the tip of the second elastic curved arm 26 and extends toward the base plate section 20;
A rising substrate portion 28 facing the substrate portion 20 at an appropriate distance is coupled to the tip thereof.

Reference numeral 29 is an elastic pressing plate, and the rising base plate portion 28
It extends from the tip of the folding plate 23 through the curved portion 29a to face the folded overlapping plate portion 23. In addition, the elastic pressing plate 2
A fixing plate 30 is provided extending forward from both sides of the rising base plate part 28 so as to surround the vertical groove 24.
The stand-up board section 28 is fixed by inserting it into the board.

[Effect]

The functions of the first and second elastic bending arms 21 and 26 are similar to those of the conventional example, and as shown in FIG.
The plate male terminals 31, 32 which are inserted between the terminals 0, 25 and the edges of the arms 21, 26 are elastically held.

In addition, the elastic pressing plate 29 and the folded overlapping plate part 23
(or the folded plates 22) elastically hold the plate-shaped male terminals 33 inserted therebetween.

That is, three plate-shaped male terminals can be connected simultaneously with one relay terminal of the present invention. Therefore, as shown in FIG. 3, the tab terminal 12 of the wiring board 7 is attached to the first elastic curved arm 21 of the relay terminal.
A male terminal 33 for connection of an electric circuit unit (not shown) can be simultaneously connected to the second elastic curved arm 26, and a blade-type terminal 1 of a blade-type fuse can be connected to the elastic pressing plate 29.

As a result, for example, in the wiring board 7 of FIG.
There is no need to provide a new tab terminal on the bus bar 5A or another bus bar for connection of the unit male terminal 33A, and furthermore, there is no need to provide a new tab terminal on the bus bar 5A for connection of the male terminal 33A for the unit. Since there is no need to use dedicated female-to-female terminals as shown in FIG. 6, the circuit configuration of the wiring board is simplified and the number of parts is reduced.

[Embodiment]

The relay terminal in Figure 1 shows a typical example of the present invention.
It is integrally formed by punching and bending from a thin sheet metal such as copper, brass, beryllium-copper, etc. For example, from the base plate 20 having the first elastic curved arm 21 to the folded plate 22 and below. It is possible to take measures such as combining separately manufactured products. In this case, there is an advantage that only the elastic pressing plate 29 can be made of a different material with strong spring properties.

Further, the first and second elastic curved arms 21 and 26 may be provided on the opposite side to that shown in the drawings, and in order to facilitate the insertion and insertion of the male terminal, the upper end of the vertical groove 24 is formed at the tip of the end edge 21a. It is preferable to provide a taper 21b similarly to the insertion guide 24a. Further, the protruding portion of the fixing plate 30 fitted into the vertical groove 24 may be bent and fixed as shown by the two-dot chain line 30a in FIG. In this case, even if the longitudinal grooves 24 are widened, the distance between the folded overlapping plate section 23 and the rising substrate section 28 can be kept constant.

[Effect of idea]

As described above, the relay terminal of the present invention can connect three plate-shaped male terminals, which simplifies the circuit configuration of the wiring board and reduces the number of parts (conventional female-female terminal). Therefore, manufacturing costs can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an example of the relay terminal of the present invention, Fig. 2 is a sectional view showing the same operating state, and Fig. 3
The figure is a perspective view showing how to use the same as above. FIG. 4 is a perspective view showing a blade-type fuse, FIG. 5 is a perspective view showing a conventional electrical junction box in a separated state, and FIGS. 6 a and 6 b are perspective views showing conventional relay female terminals, respectively. . 20... Substrate part, 21, 26... First and second elastic curved arms, 22... Folded plate, 23... Folded overlapping plate part, 24... Vertical groove, 25... Horizontal base plate part, 2
7...Folded horizontal plate, 28...Rising board section, 2
9...Elastic pressure plate, 30...Fixing plate.

Claims (1)

[Scope of utility model registration request] A pair of first elastic curved arms formed on both sides of the lower end of the substrate part, a folded overlapping plate part formed by folding and overlapping the upper end of the base plate part and having two vertical grooves, and this folded overlapping plate part. a pair of second elastic curved arms formed on both sides of the horizontal base plate extending forward perpendicularly to the base plate from the folded plate forming the horizontal base plate; and an elastic pressing plate extending from the rising substrate portion through a curved portion to face the folded overlapping plate portion;
A relay terminal comprising fixing plate portions extending forward from both sides of the rising substrate portion so as to surround the elastic pressing plate and being fitted and fixed into the longitudinal grooves of the folded overlapping plate portion.