JPS6122711A - Connecting structure of bus bar to tab in bus bar circuit board - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Object of the Invention] [Tohoku 9-Team IHi Visit] The present invention is directed to a busbar circuit board that constitutes an electrical connection board such as a relay box or a fuse box. ) Regarding the connection structure with the tab.

Connection methods for busbars and tabs can be roughly divided into two types: those in which the busbars are arranged parallel to the plane of the insulating board, and those in which the busbars are arranged vertically with the plane perpendicular to the board. Ru.

In the former case, as shown in Fig. 8, a tab is connected upright to the end of a busbar 1 disposed in parallel with an insulating substrate a, and a blade fuse is connected to this tab through a liff &tAl plate d. Connect the tab f of e to the insulating substrate a1- (see Japanese Unexamined Patent Publication No. 55-46592).
As shown in Fig. 9 (a), raw silk terminal g is set upright, and the bus bar b and tab f of the blade fuse are inserted into the vertical groove i formed on both sides Pi++ as shown in (b), and the terminal board section is j
The contact pressure on the back and sides is strengthened by the elastic tongue k connected to the tongue (see Japanese Utility Model Publication No. 130984/1984).

1'+'i! Problems to be Solved (H) According to the prior art, in the case of FIG.
are arranged parallel to each other, and the bus bar C is required to stand up when connecting external tabs, which complicates the routing of the bus bar.In addition, the interposition of the bus bar 1 makes the entire circuit board bulky, making it compact. There was a problem that the contact resistance increased.

On the other hand, in the cases of Figures 9 (a) and (b), the circuit configuration is considerably simplified because the tab C is not required on the busbar b, but the connection between the busbar and the blade fuse still requires a special structure. There is a problem in that the inner box terminal g is used as a key point, and the presence of this relay terminal g imposes restrictions on circuit routing.

The present invention was made to solve these problems, and its purpose is to connect the bus bar and the external facing tab directly without using a relay terminal, thereby preventing an increase in contact resistance due to contact. At the same time, it is an object of the present invention to provide a connection structure between a bus bar and a tab that is easy to downsize without being restricted by the routing of the bus bar.

[Structure of the invention]

In the present invention, a plurality of busbars are disposed on an insulating plate facing each other parallel to each other, and face-to-face tabs and busbars are arranged on the insulating plate at desired positions of the busbars. The purpose is to achieve the above object by not providing a contact clamping member for simultaneously clamping and contacting the busbars, and the contact clamping member can be changed according to the manner in which the bus bar is routed.

By providing the contact clamping member in advance on the busbar housing itself, it is possible to directly connect external tabs without any need for conventional relay terminals, and there is no need for the busbar itself. No machining (for example, tab C in FIG. 8) is required, and the routing of the bus 7X+- is not affected.

Asahi Kiri Hereinafter, the present invention will be specifically explained with reference to the drawings.

Fig. 1 is a perspective view of the electric connection board according to the present invention;
The figure is an enlarged explanatory view of the main part, and FIG. 3 is a cross-sectional view showing the state of connection between the busnomer and the tab.

The electrical connection board Δ is constructed by accommodating a plurality of busbars 2 in a box 1 made of plastic insulator and covering it with a cover 3, and the cover 3 has a plate fuse 40 facing and generally facing from the front to the rear. Multiple facing tabs arranged 5
A plurality of insertion holes 6 are provided for the case, and a plurality of fitting frames 7 and relays 8 are provided for the case (not shown). L
It is locked by two holes 10.

In the box l, a plurality of 1. (The grooves 12 are provided at predetermined intervals, and the vertical Fj
Busbar 2 is fitted to 12, and two groups of busbars face each other parallel to each other! Arranged in white. That is, the bus bar 2 groups are arranged in parallel to the insulating substrate 13 forming the bottom wall of the box 1 so as to be perpendicular to each other.

Therefore, between the busbars 2 and 2 of the sentence/1 that face each other,
A contact holding member 14 for the bus bar and the tab is provided facing the tab insertion hole 6. The contact holding member 14, in the example shown in FIG. In order to strengthen the contact pressure between the bus bar and the tab by attaching the elastic member 17, it is preferable to chamfer the upper edge of the 131 ft. elastic member 17 to make it easier to insert the tab 5. .

Thus, when the facing type bipolar tab 5 of the blade fuse 4 is inserted through the tab insertion hole 6, the facing type bipolar tab 5 becomes 'I5.
As shown in Fig. 3, the elastic part +A'17 of the contact holding member 14 enters between the bus bar 2 and is pressed against the member 14 in a manner similar to the bullet 1 (I), and the bus bar 2 and the facing bipolar tab 5 are applied with an appropriate contact pressure. At this time, if a protrusion 9 of 4 μm is provided between the facing type bipolar tabs 5 and 5 of the plate and use 4 and a through hole 20 thereof is provided in advance in the cover 3, the protrusion 19 can be connected. ff1
It can engage the center hole 15 of the lI+ holding member 14 to prevent vibration and stabilize contact. Note that the contact holding members 14', 14'' provided at the other end of the bus bar 2
are respectively t) with respect to tabs (not shown) of the relay 8, and these contact holding members 14.about.14'' are randomly provided between desired busbars facing each other, and (fret
) You can connect any electrical component that has a tab.

FIGS. 4 and 5 show other embodiments of the contact holding portion H, respectively.

The contact 1Q) l holding portion side 21 shown in FIG. 4 supports the bus bar 2 from 1 and 2 and is clamped together with the tab. lp I U, 1 Concubine holding part 21 is composed of an insulating base 1 erected at 13, U7, 1-0111 of the support 22, a phantom receiver 1 23 and a U-shaped frame plate 24. clamp (groove)
The elastic member 17 is attached to the inside of the frame plate 24 as shown in FIG. A desired number of contact holding members 21 are provided facing the wiring route of the bus bar 2 and corresponding to the flade fuses 4 and the like. Note that the contact holding member 21 may be formed by extending the frame 16 shown in FIG.

Since the contact holding member 21 has the structure described below, it has the effect of fixing the bus bar 2 itself in addition to the effect of the above embodiment, and it is also possible to omit the vertical groove 11 of the box 1.

The contact holding member 27 shown in FIG. 5 is similar to that shown in FIGS. Unlike the linear bus bar shown in Fig. 4, this bus bar has a right-angled bent portion and can be fixed and connected to a tab at the same time.

That is, the four bus bars 2 having the right-angled bent portions 26 are arranged in an F-junction shape, and the L-shaped busbars 2 that are in contact with the outer surface of the right-angled bent portions 2G are arranged in an F-junction shape.
The contact 1s1, which is composed of an outer fixing wall 29 forming the mold recess 28 and an inner fixing wall 30 having a cross-sectional shape that abuts the inner surface of the bent part 2G: is securely clamped and fixed by the holding part +A'21. Ru. A more stable connection with the tab can be achieved by pasting the elastic member 17 on the inner fixed wall 30 in the same manner as described above, or by punching and forming beads 31 on the bus bar 2.

In this case, the opposing right angle bent portions 26a, 26
+) A facing bipolar tab 5 of said blade fuse 4 between
Needless to say, by inserting the multi-polar blade L nose 4' having a one-sided four-pole tab 5' as shown in Fig. 6, it is possible to connect Simultaneous connection with the book bus bar 2 is possible.

In the illustrated embodiment, the bus bar and the contact holding member are provided on the insulating base, but the present invention is not limited to this, and they may be provided on the cover, for example.

〔Effect of the invention〕

The effects of the present invention are listed below.

(1) A contact holding member for the busbar and tab is provided on the insulating board on which the busbar is arranged, so the two can be directly connected, eliminating the need for relay terminals as in the past.
Increase in contact resistance is prevented.

(2) The electrical components connected to the bus bar are not limited to plaid fuses, but any electrical component may be used as long as it has a (male) tab.

(3) The conventional relay terminals g (Fig. 9 (a), (b), etc.) are no longer required, and the busbars that make up the circuit board can be routed easily.
element, making it easier to downsize.

(4) The contact holding member between the busbar and the tab can be easily modified according to the shape of the busbar (for example, a right-angled bent part), and can also be used to fix the busbar, thereby preventing its vibration and rocking. In some cases, the bus bar fixing means (the vertical groove 12) can be omitted.

(5) The contact holding member has a simple structure, and (3) and (
Combined with the effect of 4), the cost of the circuit board can be significantly reduced.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the electrical connection board according to the present invention, Fig. 2 is an enlarged perspective view of the main parts thereof, Fig. 3 is a sectional view showing the connection state between the bus bar and the tab, Figs. 4 and 5 6 is a perspective view of the main part of another embodiment of the present invention, FIG. 6 is a perspective view of the face-to-face multipolar blade fuse used in the busbar connection of FIG. 5, and FIG. 7 is a plan view of the connected state. Figure, 8th
Figure and Figure 19 (a)! (L is an explanatory diagram showing the connection structure of conventional busbars and tabs. Δ... Electrical connection board, 1... Box, 2... Busbar, 4... Plaid fuse, 5...・Face-to-face comb, 1
4, 21.27... Contact holding part removal, 17... Elastic member, 23... Receiving plate, 24... Frame plate, 25... Clamping part, 26... Right angle bending part, 29... External fixed wall, 3
0...Inner fixed wall. Yazaki Sogyo Tamashiki Company Figure 2 Figure 3 15 19 1'/ Figure 7 Figure 8 Procedure Masaru Neichi 7) (Voluntary) September 27, 1982 Shiga, Commissioner of the Patent Office Gakuden 1, Indication of the case, Patent Application No. 140715, filed in 1982, 2, Name of the invention, Connection structure of busbars and tabs in a busbar circuit board 3, Relationship with the person making the amendment, patent applicant address, Mita, Minato-ku, Tokyo. 1-4-28 Name (689
) ぢ'l茌扮聚 Co., Ltd. 4, Agent 6, Subject of amendment

Claims (4)

[Claims] (1) A plurality of busbars are disposed on an insulating plate so as to face each other parallel to each other, and face-to-face tabs to be connected facing the desired positions of the plurality of busbars and contact holding members for the busbars are provided. The connection structure between busbars and tabs on the busbar circuit board features a special feature. (2) A connection structure between a busbar and a tab in a busbar circuit board, in which the contact clamping member according to claim 1 is erected between a pair of opposing busbars. (3) The contact holding member according to claim 1 is erected on the insulating plate facing the desired bus bar arrangement route, and is constituted by a pair of receiving plates and a frame plate at its upper end. A connection structure between a busbar and a tab in a busbar circuit board having a clamping portion for the busbar and the facing tab. (4) Some of the busbars selected from the plurality of busbars according to claim 1 have right-angled bent portions and face each other,
The contact holding member is comprised of an outer fixed wall that contacts the outer surface of the right-angled bent portion, and an inner fixed wall with an L-shaped cross section that contacts the inner surface, and a facing tab is inserted between the inner fixed wall and the bus bar for connection. A connection structure between busbars and tabs on a busbar circuit board.