JPS62294774A - Distributor for ignition of internal combustion engine - Google Patents

Abstract

PURPOSE:To install an engine room in a small space and narrow it easily by arranging an ignition coil within the body of a distributor. CONSTITUTION:When a distribution cap 11 is fitted in a distributor casing 1, a center electrode side terminal 15 of an insert 17 confronts to the secondary side terminal 16, and the center electrode 12 faces closely to the center of a distribution rotor 10 while the peripheral electrode 13 is located at the periphery of said distribution rotor 10. If a shaft 2 then rotates, high voltage output from an ignition coil 8A is distributed to the peripheral electrode 13. the primary current of ignition coil 8A is on/off controlled electronically through utilization of surplus capacity of a microcomputer installed in this car or the like. Because the construction is accomplished in a small size through incorporation of the ignition coil 8A in the distributor casing 1 in such a manner as mentioned, the engine room does not require a great space and any high tension cord will neither be needed, which enables narrowing easily.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a power distribution device for ignition of an internal combustion engine used in, for example, an automobile.

[Conventional technology]

Figure 2 is a schematic cross-sectional view showing a conventional power distributor, (1)
(2) is the shaft that rotates in the M phase, (3) is the centrifugal advance device that is rotationally driven by the shaft (2), and (4) is the centrifugal advance device. (3) is a hollow shaft rotationally driven through the vacuum advance device (5), (6) is a rotating plate that is rotationally displaced by the vacuum advance device (5), and (7) is a rotating plate (6). (8) is an ignition coil whose primary current is switched on and off by the proximity switch; (9) is a signal rotor carried on the hollow shaft (4) and activates the proximity switch ('7); (10) ) is the power distribution rotor carried by the hollow shaft (4), (11) is the power distribution cap, (12) is the center electrode provided in the power distribution cap (11), and (13) is the periphery provided in the power distribution cap (11). The electrode (14) is the high voltage output of the secondary fill of the ignition coil (8).

A conventional power distributor is configured as described above, and has a centrifugal advance device (
3) and the vacuum advance device (5) control the ignition timing, and the ignition coil (8) distributes high voltage to the peripheral electrode (13).

[Problem that the invention seeks to solve]

With the conventional power distribution device and the arrangement of the ignition coil (8) installed outside of it as described above, (a) it is difficult to provide space for installing the ignition coil as the engine room becomes smaller; ) The distance from the ignition coil (8) to the center electrode (12) is long, causing loss of ignition energy.
) High voltage is generated near the ignition coil (8) and high tension cord (14), which can cause noise and other problems for electronic equipment, so avoid the area near these (8) and (14). had several problems, such as the inability to place auxiliary equipment close together and the inability to accommodate a narrower engine room.

The present invention was made to solve this problem, and an object of the present invention is to provide a power distributor that includes only an ignition coil.

[Means for solving problems]

The power distributor according to the present invention has an ignition coil disposed within the main body of the power distributor, the distance from the ignition coil to the center electrode is as short as possible, and a surplus microphone is mounted for electronic control. By utilizing this ability, the centrifugal and vacuum advance mechanisms are removed from the power distributor.

[Effect]

In this invention, the high tension cord that existed in the past from the ignition coil to the power distribution device is removed, thus eliminating the play space that was conventionally required near the high tension cord, and furthermore, the advance angle control mechanism can be connected to the power distribution device. Since the power distribution device does not have a power distribution device, the power distribution device can be downsized and the high voltage conductor path from the ignition coil to the power distribution rotor can be made shorter.

〔Example〕

FIG. 1 is a cross-sectional view showing one embodiment of the present invention.
), (2), (10), (11),
(12) and (13) are the same as the conventional device.

(8A) is an ignition coil that is installed in the power distributor casing (1) and has a structure where the shaft passes through.The secondary side terminal (16) of this ignition coil (8A) is inserted through the insert (17). center electrode (12
)It is connected to the. The inserter (17) has a center electrode (12) at one end and a center electrode side terminal (15) at the other end, and is integrated when it is placed inside the power distribution cap (11) to form the power distribution cap. Molded. The secondary terminal (16) of the ignition coil (8A) is integrally molded when forming the casing of the ignition coil (8A).

An ignition coil (8A) having such a secondary terminal (16) is arranged and fixed within the power distributor casing (1). The upper end of the shaft is directly connected to the power distribution rotor (1
0) is attached.

In the internal combustion engine ignition power distribution device configured as described above, when the power distribution cap (11) is attached to the power distribution device casing (1), the inserter (17) is attached to the secondary side terminal (16).
) are in contact with each other, and the center electrode side terminals (15) of the center electrodes (12
) is in contact with the center of the distribution rotor (10), and the peripheral electrode (
13) is located around the power distribution rotor (10). Thus, when the shaft 7) (2) rotates, the high voltage output from the ignition coil (8A) is distributed to the peripheral electrode (13). Note that the intermittent control (ignition timing control) of the secondary current of the ignition coil (8A) is electronically controlled using the surplus capacity of a microcomputer installed in an automobile or the like.

In the illustrated embodiment, the center electrode side terminal (15) and the high voltage side terminal (16) are in contact with each other when the power distribution cap (11) is attached.
7) There are various other ways of connecting the high voltage side of the ignition coil (8A) to the center electrode (12).

〔Effect of the invention〕

As explained above, the power distributor has a built-in ignition coil, which secures space for installation, and is compact, so it does not take up space in the engine room, and there is a high voltage cable between the power distributor and the ignition coil. Since no tension cord is required, the engine room can be easily reduced in size. Furthermore, since the distance from the ignition coil to the center electrode is short, there is no loss of ignition energy.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is a sectional view showing a conventional internal combustion engine ignition power distribution device. In the figures, (K) is the shaft, (8A) is the ignition coil, (10) the Gift rotor, (12) is the center electrode, and (13) is the peripheral electrode.0 In each figure, the same reference numerals refer to the same or corresponding parts. Agent Masuo Oiwa, patent attorney Figure 1

Claims (2)

[Claims] (1) A power distribution device for ignition of an internal combustion engine characterized by incorporating only a power distribution mechanism consisting of a center electrode, peripheral electrodes, and a power distribution rotor, and an ignition coil structured so that a shaft can pass through it. (2) The center electrode side terminal integrated into the power distribution cap and the high voltage side terminal integrated into the ignition coil,
The power distributor for internal combustion engine ignition according to claim 1, wherein the power distribution device faces each other when the power distribution cap is attached.