JPS6160265B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an engine ignition power distribution device.

Conventionally, a stator having a magnetic pole part and a bobbin around which a signal coil is wound are fixed to a movable plate fixed to a housing via a magnet, and the output end of this signal coil is connected to the housing through a lead wire. It is led out and connected to the ignition circuit case. However, since the movable plate is frequently rotated by the vacuum advance device in response to the acceleration state of the engine, the lead wire for deriving the ignition signal voltage is frequently bent due to this rotation.
There were a number of accidents where this bent part broke and the wire broke.

The present invention is an engine ignition power distributor that eliminates the above-mentioned disadvantages.

Hereinafter, a detailed description will be given with reference to the embodiments shown in FIGS. 1 and 2. In the figure, 1 is the housing of the power distributor,
Reference numeral 2 denotes a rotating shaft supported by the housing 1 via a bearing 3, and 4 a holding plate for preventing the bearing 3 from coming off, which is fixed to the housing 1 with screws 5. Reference numeral 6 denotes a movable plate that is rotatably supported on the rotating shaft 2 via a bearing 7, and has a flange-shaped annular magnetic pole portion 6a that faces the outer surface of the cylindrical body with a predetermined opposing area, which will be described later. ing. Reference numeral 8 denotes a space collar loosely fitted to the rotating shaft 2 to position the bearing 7. A roll pin 10 is press-fitted into a through hole 9 formed on the space collar 8 and the rotating shaft 2, and is integrally fixed to the rotating shaft 2. has been done. A stator 11 is fixed to the movable plate 6 by a rivet 13 via a ring-shaped rubber magnet 12, and has four magnetic pole portions 11a formed at equal intervals on its outer periphery. Reference numeral 14 denotes a rotor in which four magnetic pole parts 14a facing these magnetic pole parts 11a with predetermined gaps are formed on the outer periphery at equal intervals. It is fixed to the cylindrical body 15. Reference numeral 16 denotes a resin plate made of synthetic resin that is fixed in the housing 1 by twisting, and a bobbin portion 16a is provided on the inner circumference of the plate.
However, a terminal portion for holding a female terminal, which will be described later, is integrally formed in a part of the outer periphery. 17
is a signal coil wound around this bobbin portion 16a and having a lead end connected to a terminal. Incidentally, the stator 11, rubber magnet 12, rotor 14, and signal coil 17 described above constitute a magnet generator 18. Reference numeral 19 denotes an ignition circuit casing that is attached to the mounting portion 1a on the side of the housing 1 with screws 20. The ignition circuit housing 19 includes an ignition circuit made up of electronic components, etc., and is connected to the ignition circuit by fitting the above-mentioned terminals. It is electrically connected to the signal coil 17. 19a is a terminal portion of this ignition circuit housing 19, which is connected to an ignition coil (not shown). 21 is a link loosely fitted to a pin 22 fitted to the movable plate 6; 23 is a link that connects the movable plate 6 to the link 21 in response to engine negative pressure;
24 is a governor advance device, and 25 is a high voltage power distribution device for ignition.

Next, the operation of this embodiment will be explained. First, when the rotary shaft 2 is rotationally driven by the engine in the direction of the arrow shown in FIG.
Since the magnetic pole part 14a is rotated from the stator 11 through the cylindrical body 15 as the rotor 11 rotates, the magnetic pole part 14a
The operation of approaching the magnetic pole part 11a, completely opposing the magnetic pole part 11a, and separating the magnetic pole part 11a is repeated continuously. Then, signal coil 1
Since the amount of interlinking magnetic flux of 7 changes, an ignition signal voltage having a positive and negative waveform is induced in the signal coil 17 based on this magnetic flux change. This ignition signal voltage is the signal coil 1
7 is led to the ignition circuit housing 19 through the terminal of the terminal portion 16b, and is then input to the ignition circuit. The ignition circuit intermittents the primary current of the ignition coil based on the output value of the ignition signal voltage to induce a high voltage for ignition on the secondary side, and this high voltage for ignition is transmitted to the engine by the power distribution device 25. Since power is distributed sequentially to the required spark plugs, the spark plugs discharge sparks to drive the engine. By the way, when the vehicle accelerates, the vacuum advance device 23 is operated by the engine's intake negative pressure to move the link 21, so that the movable plate 6 is rotated by a predetermined angle. Then,
The timing at which the magnetic pole portion 14a of the rotor 14 opposes the magnetic pole portion 11a of the stator 11 is advanced, and the phase of the ignition signal voltage of the signal coil 17 is advanced in the same manner as the operation of the governor advance device 24, so that the engine intake negative As the pressure increases, the engine ignition timing is advanced. The engine operates smoothly through the operations described above.

Now, the structure and function of the resin plate 16 having the bobbin portion 16a and the terminal portion 16b and the ignition circuit housing 19 described above will be explained in detail with reference to FIGS. 3 to 7. 16c is a mounting end formed with a mounting hole 16d, 16e is a bottom housing forming the terminal portion 16b, and a pair of left and right female terminals 2 are provided.
6 and 27 are each held in position L-shaped groove 1
6f and 16g are formed. 26a, 27a
are holes formed in this pair of female terminals 26, 27, 26b, 27b are terminal pieces 16h, 1
6i is a locking pin formed to protrude deep into each of the L-shaped grooves 16f and 16g; 16j is a protruding piece formed on both sides of the bottom housing 16e;
Reference numeral 6k designates an upper lid that is fitted into the bottom housing 16e, and has holes 16i and 16m into which a pair of locking pins 16h and 16i are fitted. A pair of male terminals 28 and 29 are held in position in the input terminal portion 19a of the ignition circuit housing 19, and are fitted into the pair of female terminals 26 and 27 described above. 19b is an output terminal portion of the ignition circuit housing 19, from which a pair of male terminals 30 and 31 for connection to the ignition coil protrudes. A grommet 32 is fitted into the terminal portion 16b of the resin plate 16 and into a notch portion of the housing 1.

The assembly of the terminal portion 16a of this resin plate 16 is as follows. That is, the bottom housing 16e
A pair of left and right female terminals 26, 27 are inserted into the L-shaped grooves 16f, 16g by fitting their holes 26a, 27a into the locking pins 16h, 16i, and are held in position. Therefore, the bottom housing 16e
The upper lid 16k is fitted to the housing 16e so as to sandwich the pair of female terminals 26 and 27. At this time, the holes 16l, 16 of the upper lid 16k
m is fitted into the locking pins 16h and 16i. In this state, when the protrusions of the pair of locking pins 16h and 16i are crushed and expanded by ultrasonic fixing means, the upper cover 16k is integrally fixed to the bottom housing 16e, and at the same time, the pair of female terminals 26,2
7 is held in position and does not come out from the terminal portion 16b.

Next, a signal coil 17 is formed by winding a winding wire around the bobbin portion 16a, and each output end of the signal coil 17 is subjected to a scoping process (the tip of the wire body is folded multiple times, and the overlapping portion is twisted and twisted). The wire is wrapped around the terminal pieces 26b, 27b of the pair of female terminals 26, 27 and fixed by soldering. After fitting the grommet 32 into the terminal portion 16b of the thus completed resin plate 16 until it abuts the protruding piece 16j, the resin plate 16 is fixed to the housing 1 with screws through the mounting hole 16d of the mounting end 16c. Next, in order to fix the ignition circuit case 19 to the mounting part 1a of the housing 1, the input terminal part 19a is attached to the terminal part 16b of the resin plate 16 with female and male terminals 26, 27, 28, 2.
After fitting through 9, it is fixed with screws 20.

As described above, the bobbin around which the signal coil 17 is wound is not fixed to the movable plate 6 as in the conventional case, but is directly fixed to the housing 1 and held so that it cannot rotate. There will be no accidents when the power supply of the ignition signal voltage to the ignition circuit housing 19 is disconnected due to the rotation. Moreover, since the terminal portion 16b is integrally formed on the resin plate 16, the ignition circuit case 19 can be attached to the mounting portion 1a of the housing 1 while the resin plate 16 is fixed to the housing 1. The input terminal portion 19a of the cigarette case 19 is connected to the resin plate 16.
It will automatically fit into the terminal part 16b of
The signal coil 17 and the ignition circuit can be electrically connected easily without any new connection work. Furthermore,
By not using bending lead wires, the electrical connection becomes highly reliable, especially when the housing 1
If it is directly bonded, it exhibits a remarkable effect.

As described above, the present invention fixes a fixing plate having a terminal part and a bobbin part to a housing, and also includes an ignition circuit casing having a terminal part connected to the terminal part of the fixing plate on the side of the housing. By fixing it, the electrical connection between the signal coil wound on the bobbin part and the ignition circuit can be ensured, and accidents such as the electrical connection coming undone due to the rotation of the movable plate can be completely eliminated. It has excellent practical effects.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a plan view of the magnet generator 18, FIG. 3 is a perspective view of the resin plate 16, and FIG. 4 is a perspective view of the main parts of the terminal portion 16. , FIG. 5 is a perspective view of the upper lid 16k, FIG. 6 is a perspective view of the female terminals 26 and 27, and FIG. 7 is a perspective view of the ignition circuit housing 19. In the figure, 1 is a housing, 2 is a rotating shaft, 6 is a movable plate, 11 is a stator, 12 is a rubber magnet, 14 is a rotor, 15 is a cylinder, 16 is a resin plate, 16a is a bobbin part, and 16b is a Terminal part, 1
6c is the mounting end, 16d, 16l, 16m, 26
a, 27a are holes, 16e is a bottom housing, 16
f, 16g are grooves, 16h, 16i are locking pins, 1
6j is a protruding piece, 16k is an upper lid, 26, 27, 2
8, 29, 30, and 31 are terminals, and 32 is a grommet. Note that the same reference numerals in each figure indicate the same parts.

Claims (1)

[Claims] 1. A housing, a rotating shaft supported by the housing, a rotor attached to the rotating shaft and formed with magnetic poles, and a movable device supported by the rotor or cylinder via a bearing and rotated by a rotating means. a stator fixed to the movable plate via a magnet and formed with a magnetic pole part that can face the magnetic pole part with an air gap therebetween; and an ignition device fixed to the side of the housing and having a terminal part. a circuit casing, a terminal part fixed to the housing within the housing and fitted into a terminal part of the ignition circuit casing, and a terminal part from the magnet to the stator, each magnetic pole part;
a fixed plate having a rotor, a cylinder, a rotating shaft, and a bobbin portion located in a magnetic flux flow path leading to the movable plate; and a fixed plate having an output end wound around the bobbin portion of the fixed plate. Engine ignition power distributor with a signal coil connected to the terminal section.