JPS5855775Y2 - electrical circuit panel - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an electric circuit panel, and more specifically, to an electric circuit panel having a complicated shape.

So-called printed circuits have traditionally been used for electrical circuits formed on panels for light electrical equipment, but these are made by attaching a copper foil plate to an insulating substrate such as a synthetic resin or glass fiber reinforced synthetic resin substrate using a suitable adhesive. The copper foil plate is attached to a circuit that connects various electrical parts using a corrosion method, and although it is easy to manufacture, the allowable current value is limited by the thickness of the copper foil plate and can handle large currents. It cannot be used for circuits, and when soldering circuit components with large heat capacity, the copper foil plate may peel off from the insulating board or be damaged due to thermal deterioration of the adhesive or oxidation of the copper foil plate, making it difficult to use as a circuit. The drawback was that it lost functionality.

Therefore, in order to eliminate these drawbacks and increase the allowable current value while maintaining the mass productivity of printed circuits, as shown in Figure 1, a conductive metal plate made of copper or other conductive metal is pressed to connect electrical parts. The conductive paths 1a to 1d are formed and attached to an insulating substrate 3 on which an electrical component (for example, a fuse holder) 2 is attached, and the ends of each conductive path are connected using appropriate connecting means to ensure that there is no electrical and mechanical interference. It is currently being used to connect electrical circuits to form electrical circuit panels.

However, with this method, mass production of conductive paths can be maintained,
Even if the allowable current value increases, as the shape of the conductive path becomes more complex, the waste in the manufacturing process, the so-called raw material loss rate (ratio of raw materials to products), becomes large and resource-saving is not achieved, and heat dissipation is poor. This idea, which makes it difficult to change the circuit, eliminates the drawbacks of the printed circuits and plate circuits mentioned above, and makes it possible to provide an electrical circuit panel that is sturdy, hard to break, has a large allowable current value, and has little waste in the manufacturing process. This is the purpose.

The electrical circuit panel of this invention is made by bending a conductive material such as copper wire, which has good bendability, into the shape required as a conductive path, and then inserting both or one end of the wire into a conductive path installation hole in an insulating substrate. Each wire is processed into a flat shape for ease of installation, and then installed using circular or pyramidal wiring supports and mounting holes that have been previously attached to an insulating plate.

This invention will be explained in detail below according to an embodiment shown in the drawings.

FIG. 2 is a process flowchart for manufacturing a conductive path, in which 10 is a conductive path element forming machine and 20 is an end processing machine.

First, in the conductive path element forming machine 10, a long copper wire 12 having a cross-sectional area predetermined in advance according to the allowable current value is wound around a drum 11, etc., and is sent out through the guide sleeve 13. Both sleeves are moved forward and backward as well as in the left and right directions based on commands from the numerical control circuit 14A.
- Bending pins P1. at a desired pitch via the Y drive controller 14B. P2...Pin board 15 with Pn set up
A blank conductive path body 30 having a predetermined shape by tracing the top
Manufacture.

Next, in the end processing machine 20, the cutting machine 21 cuts the blank conductive path body 30 for each predetermined formation, and the terminal processing section 22 cuts the bare conductive path body 30 into third pieces.
As shown in the figure, the ends are flattened to form terminals 31, and the terminal portions are bent at right angles to form conductive paths 32a to 3.
2 Form i.

Incidentally, instead of forming a unit electric path using a long conductive member as described above, a unit electric path may be formed from a unit length conductive member.

FIG. 4 shows a special panel for mounting the conductive paths formed as described above.

The insulating panel 40 constituting the panel is made of a heat-resistant and insulating synthetic resin material depending on the application, and has a radius that is the same as the diameter of the conductor forming the above-mentioned conductive path on the top surface and only slightly larger than that of the conductor. Conductor arrangement groove 4 having a groove and groove depth
Wiring support 42 a in the shape of a square column or square pyramid forming 1
42e are provided in a protruding manner, and terminal insertion holes 43a to 420 are formed on the other surface of the insulating panel.

The above-mentioned quadrangular pyramid-shaped wiring support is shown in FIGS. 5 and 6a,
As shown in l), it is processed integrally with the insulating panel 40,
On the side surface of the support, there are spaces at least multiple times the diameter of the conductor forming the conductive path, and the open end side has side surfaces that are slightly smaller and parallel to the conductor diameter, and are connected to the insertion groove 44 and the ridge groove, and are equal to the diameter of the conductor. , a conductor placement groove 41 consisting of a conductor placement groove 45 having a circular cross section with a diameter slightly larger than this is formed.

The conductor arrangement groove 41 is formed into an insertion groove 44 as shown in FIG. 6a.
It may be opened at right angles to the side surface of the support, or it may be opened at an angle same as the side surface of the support as shown in FIG.

In this case, if you make an insertion groove on the panel side of the column that is slanted as shown in Figure 6, and on the upper side that is perpendicular to the side surface as shown in Figure 6a, it will be possible to attach the conductive path. It's extremely convenient.

FIG. 7 shows the installation state of the wiring support 42b, and shows almost all of the wiring support 42a, 42C to 42e.
is formed integrally with the insulating panel 40, but in the case of an inverted pyramidal shape, only the support portion is formed separately and fixed to the panel with screws 47.

In this case, if an adhesive is applied to the contact surface between the panel and the pyramid to prevent rotation and then the screws are screwed, the mounting position of the support (mainly the direction in which the surface is disposed) will not change due to loosening of the screw.

As shown in FIGS. 8 to 11, conductive path bodies 32a to 32i are inserted into the insulating panel 40 on predetermined wiring supports 42 by a worker or by a familiar automatic insertion machine for automatically inserting electrical components.
While fitting into the conductor arrangement grooves 41 of a to 42e and 42f, insert the terminals 31 at both ends into the terminal insertion holes 438 to 430.
The insulating panel 40 is inserted into the insulating panel 40 by utilizing its elasticity.

In this case, the conductive paths 32a to 3 disposed on the insulating panel 40
2g, 32h, and 32i are made to cross each other in the vertical and horizontal directions on the wiring supports 42C and 42d, using conductor installation grooves and side surfaces of the supports that have different heights from the panel surface.

Although the electrical circuit panel is formed by attaching the conductive path bodies 323 to 32i to one side of the insulating panel 40, wiring supports may also be formed on the other side and conductive paths may be formed on both sides. A printed circuit may be configured on the other side, and a large current circuit and a small current circuit may be configured separately.

Furthermore, the electric circuit panel of this invention has each conductive path body 32a~
It is also possible to connect to another electrical circuit panel using the terminal 31 of the 32i, to insert this terminal into a plug and a like connector, or to connect with the terminal of an electrical component mounted on this panel.

As described above, this invention involves bending a long or unit length conductive member into the shape required as a conductive path, forming an elementary conductive path, and pressing both ends or one end of the elementary conductive path into a flat shape. It is processed to form a hard terminal to create a conductive path body, and is also made of an insulating synthetic resin member, with a radius that is the same as or only slightly larger than the diameter of the conductor that forms the conductive path on the top surface. Square pyramid-shaped wiring supports 42a to 42e each having a conductor arrangement groove 41 having a groove and groove depth are provided protrudingly, and a terminal insertion hole 43 is inserted into the other side of the insulating panel.
A to 430 are processed integrally with the insulating panel 40, and inserted into the side of the support with an interval that is at least multiple times the diameter of the conductor forming the conductive path, and the open end side is slightly smaller than the diameter of the conductor and has parallel sides. A conductor placement groove 41 is formed on an inclined surface, and includes a conductor placement groove 45 that is connected to the groove 44 and the ridge groove and has a circular cross section that is equal to or slightly larger than the conductor diameter. The conductive path body is inserted into the conductor installation groove, and the terminal part is inserted and supported in the terminal insertion hole provided in the panel, so it is possible to maintain mass production as with printed circuits, and to conduct electrical circuits with a large allowable current value. The panel can be obtained at low cost using less raw materials, and the mechanical strength of the terminals is high, so a plurality of connection types can be used.

[Brief Description of the Drawings] Fig. 1 is a perspective view of an electric circuit panel composed of conductive paths formed by conventional press working, and Figs. 2 to 9 all show one embodiment of this invention. Fig. 2 is a process flow chart for manufacturing a conductive path, Fig. 3 is a perspective view of a conductive path body, Fig. 4 is a perspective view of an insulating panel, Fig. 5 is an enlarged sectional view of the main part of an insulating panel, and Fig. Figures 6a and l) are both enlarged cross-sectional views of the conductor installation grooves formed on the side surfaces of the wiring support, Figure 7 is a cross-sectional view showing different examples of wiring support placement with respect to the insulation panel, and Figure 8 is the insulation panel. FIGS. 9 to 11 are perspective views of an electrical panel constructed by attaching conductive paths to a wiring support. 10... Conductive path element forming machine, 20... End processing machine, 30... Conductive path body, 11...
・Drum, 12... Copper wire, 13... Guide sleeve, 14A... Numerical control circuit, 14B
... Drive controller, 15 ... Pin board, 40 ... Insulation panel, 31 ... Terminal, 41 ... Conductor arrangement groove , 42 a to 42 f.
...Wiring support.

Claims (1)

[Scope of utility model registration request] After bending a long or unit length conductive member into the shape required as a conductive path, an elementary conductive path is formed, and both ends or one end of the elementary conductive path are pressed flat to form a hard terminal. A conductor formed of an insulating synthetic resin member to form a conductive path body and having a groove and groove depth on the top surface with a radius that is the same as or only slightly larger than the diameter of the conductor on which the conductive path is formed. Square pyramid-shaped wiring supports 42 a to 42 e with grooves 41 formed therein are protruded, and terminal insertion holes 43 a to 430 are formed in the insulation panel 4 to be inserted through the other side of the insulation panel.
0, and insert grooves 44 and ridges are formed on the side of the support with an interval of at least multiple times the diameter of the conductor forming the conductive path, and the open end side has a parallel side surface that is slightly smaller than the diameter of the conductor. A conductor placement groove 41 consisting of a conductor placement groove 45 connected to the conductor and having a circular cross section with a diameter equal to or slightly larger than the conductor diameter is formed, and the conductor placement groove 41 is formed in the conductor placement groove provided on the inclined surface. An electric circuit panel characterized in that a conductive path body is inserted into the panel, and further a terminal portion is inserted and supported in a terminal insertion hole provided in the panel.