JPH0747802Y2 - Junction block - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a junction block in which branch connections of an electric circuit of an automobile are centralized.

[Conventional technology]

Junction blocks are used to consolidate branch connections of wire harnesses for automobile electrical components, and fuses in one place. In this junction block, a branch conductive circuit called a bus bar in which a copper plate is punched into an appropriate shape and a terminal portion is erected is fixed to an insulating plate, and a plurality of these are stacked.

When assembling electronic components such as a diode, a resistor, a capacitor, and a relay in the middle of the bus bar, the end portion of the bus bar 1 is bent at a right angle to form a plug-shaped connection terminal 11, as shown in FIG. In addition, connect the female terminal to this connection terminal 11.
By fitting the female relay terminal 12 to the other end side of the relay terminal 12 in the connection port 14 provided in the case 16 of the junction block,
Generally, the terminals of a unit containing a desired electronic component, for example, a diode built-in unit 15 are fitted and connected.

[Problems to be solved by the device]

According to the above-described conventional technique using the relay terminal, all the necessary electronic components have to be concentrated and mounted on the case 16 of the junction block having the connection port 14. However, as more and more automobiles are made electronic and high-grade, more and more electronic components are being mounted on the case 16.Therefore, the junction block becomes larger, the bus bar wiring becomes more complicated, and the multilayer structure increases. Problem has arisen.

Therefore, various electronic components are collectively arranged on a single printed circuit board and incorporated in the junction block separately from the buzz bar circuit.

However, it is desirable to isolate a specific electronic component, such as an electronic component having a large electric capacity, from the printed circuit board because an accident that deteriorates or damages other electronic components on the printed circuit board due to heat generation.

Then, the problem that leads to the increase in the size of the junction block will occur again.

Therefore, an object of this invention is to make a junction block as small as possible and to mount a specific electronic component or the like separately from a printed circuit board.

[Means for Solving the Problems]

In order to solve the above problems, the present invention is a junction incorporating an insulating plate to which a bus bar is fixedly mounted, and a printed board on which an electronic component electrically connected to the bus bar is mounted and which is arranged separately from the insulating plate. In the block, bent portions each having a U-slot are formed to face each other at the separated ends of the bus bars separated from each other, and a predetermined electronic component is placed horizontally between the bent portions to form a pair of leads of this component. Press the wire into the U slot of each bent part,
The lead wire and the bent portion are electrically connected to each other via the press-contacting portion by the press-fitting, and the predetermined electronic component is mounted separately from the position where the printed board is provided.

[Action]

The opposite bent part in the middle of the bus bar is not subject to positional restrictions. Further, since predetermined electronic components are directly attached to the bus bar, relay terminals, connectors, etc. are unnecessary. Therefore,
By mounting some electronic components at positions off the printed circuit board, the number of electronic components on the printed circuit board can be reduced, bus bars can be saved, wiring can be simplified, and the adverse effects of certain electronic components on the printed circuit board can be reduced. Can be prevented.

[Embodiment] FIGS. 1 to 3 show an embodiment of the present invention.

As shown in FIG. 1, the bus bar 1 is provided on the upper surface of the insulating plate 9.
Is fixed to the cut end of the bus bar 1 by about 90 °.
Bending portions 2 that are bent upward are provided facing each other. Each of the bent portions 2 is provided with a U slot 3.

Reference numeral 4 denotes an electronic component having a dual type lead wire 5. The component 4 is horizontally mounted between the bent portions 2 and 2 facing each other as shown in the figure, and the lead wire 5 is press-fitted and held in the U slot 3. A functional circuit including electronic components is formed between the bus bars.

The embodiment shown in FIG. 2 employs an electronic component having an axial type lead wire 5 ', the reliability of holding the electronic component,
U-slot 3 for the purpose of improving the reliability of electronic conduction in the connection part
The lead wire 5 ′ and the bent portion 2 are mechanically and electrically connected to each other by using the pressure contact force by press-fitting and the soldering portion 6, and the surface of the bent portion 2 is improved in order to improve the solder paste. It differs from the bus bar in FIG. 1 in that a tin or solder plating layer is provided in advance.

With the above-described configuration, the specific electronic component can be mounted separately from the electronic component mounted on the printed board. For example, in the junction block 7 of FIG. 3, the printed circuit board is attached to the portion 8 and the specific electronic parts are provided with the case 10 protruding into the case 16 in which
Since it is mounted and housed in the state as shown in FIG. 1 or 2, the relay terminal and the extra bus bar wiring up to the relay terminal installation point conventionally required for connecting electronic parts such as capacitors are saved. Has been.

〔effect〕

As described above, according to the present invention, since the bent portions with the U-slots are formed to face each other in the middle of the bus bar, and some of the electronic components are directly assembled between the bent portions, the space between the bus bar and the electronic components is reduced. There is no need for an extra terminal or extra bus bar wiring to reach this terminal, and it is possible to avoid concentration of parts on the printed circuit board. Therefore, the weight of the junction block, simplification of wiring, and wire saving can be achieved. It is possible to obtain the effect that the cost can be reduced.

Further, by mounting a specific electronic component at a position off the printed board, it is possible to eliminate adverse effects on the printed board.

[Brief description of drawings]

1 and 2 are perspective views showing an embodiment of a bus bar portion of a junction block of the present invention, and FIG.
FIG. 4 is a perspective view showing an example of a junction block of the present invention, and FIG. 4 is a sectional view showing a connection structure of a conventional electronic component to a bus bar. 1 ... Bus bar, 2 ... Bent section, 3 ... U slot, 4 ... Electronic component, 5 ... 5 '... Lead wire, 6 ... Soldering section, 9 ... Insulating plate.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Kyozo Hayashi 1-3-3 Shimaya, Konohana-ku, Osaka City, Osaka Prefecture Sumitomo Electric Industries, Ltd. Osaka Works (72) Creator Mitsuhiko Matsuoka Nishisuehiro-cho, Yokkaichi-shi, Mie No. 1-14 Sumitomo Wiring Systems Co., Ltd. (72) Inventor Takao Nozaki No. 14 Nishisuehiro-cho, Yokkaichi-shi, Mie Sumitomo Wiring Co., Ltd. (56) Reference JP-A-57-151141 (JP, A) Actual Open Sho 60-168277 (JP, U) Actual Open Sho 58-182272 (JP, U) Actual Open Sho 57-125138 (JP, U) Japanese Patent Sho 54-43179 (JP, B1)

Claims (2)

[Scope of utility model registration request] 1. A junction block in which an insulating plate having a busbar fixed thereto and a printed circuit board on which electronic components electrically connected to the busbar are mounted and which is arranged separately from the insulating plate is incorporated, are separated from each other. Bending portions each having a U-slot are formed opposite to each other at the separated ends of the bus bar, and a predetermined electronic component is placed horizontally between the bending portions, and a pair of leave lines of this component are connected to each of the above-mentioned bending portions. The lead wire and the bent portion are electrically connected to each other by press-fitting into the U-slot, and the predetermined electronic component is mounted apart from the position where the printed board is provided. Junction block. 2. The bent portion has a tin or solder plating layer on the surface, and the lead wire and the bent portion are electrically connected together by using a soldering portion formed between the bent layer and the pressure contact portion. The junction block according to claim 1, which is characterized in that it is provided.