JPH0632768Y2 - Starter motor connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a connector of a starter motor for connecting between a motor of a starter motor for starting an engine of a vehicle and an electromagnetic switch.

[Conventional technology]

A conventional connector of this type is shown in, for example, FIG. 3, and FIG. 4 is a block diagram of a brush device using this connector. In these figures, 1 is a terminal made of a metal plate connected to the M terminal of an electromagnetic switch (not shown), and 1a is a mounting hole for inserting the M terminal. Further, as shown in FIG. 5, the terminal 1 is integrally formed with a fixing portion 2 for fixing an insulating tube described later. 3a, 3b are brushes on the plus side, and 4 is a lead wire for connecting these brushes 3a, 3b to the terminal 1, one end of which is the terminal 1 and the other end of which is the brush 3a, 3b. It is connected to the. The lead wire 4 is covered with an insulating tube 5, and the terminal 1 side of the insulating tube 5 is fixed by a fixing portion 2. In addition, 6 is a grommet.

Further, in FIG. 4, 7 is the brush 3a, 3 on the plus side.
b and the brushes 8a, 8b on the minus side are in commutator of the electric motor in sliding contact, 9a, 9b are holding frames for housing the brushes 3a, 3b, 10a, 10b
Is a holding frame for storing the brushes 8a, 8b, and the holding frame 9 on the plus side.
The a and 9b are attached in an insulated state to the iron plate substrate 12 via the synthetic resin plates 11a and 11b, and the minus side holding frames 10a and 10b are directly attached to the substrate 12. Further, 13a and 13b are lead wires for electrically connecting the minus side brushes 8a and 8b and the substrate 12, and 14 is a brush spring for pressing and urging the brushes 3a, 3b, 8a and 8b against the commutator 7.

In the connector thus configured, the flat plate-shaped fixing portion 2 as shown in FIG. 5 is wound around the insulation tube 5 and fastened to prevent the insulation tube 5 from coming off.

[Problems to be solved by the invention]

However, in the connector of the conventional starter motor, since the fixing portion 2 is simply wound and fastened on the insulating tube 5 as described above, the fixing portion 2 is not subject to vibration or inadvertent bending during assembly. There is a problem that the insulating tube 5 comes off from the inside, and as a result, water or the like travels through the lead wire 4 and enters the inside of the electric motor to cause corrosion.

The present invention has been made to solve the above problems, and an object thereof is to obtain a connector for a starter motor capable of reliably preventing the insulating tube from coming off from the fixed portion.

[Means for solving problems]

A connector for a starter motor according to the present invention is provided with a projecting portion inside a fixed portion, and is cut out at an end portion of the fixed portion in an axial direction of a lead wire to be sharply formed in an axial direction of the lead wire. A locking claw portion is provided, and the protruding portion and the locking claw portion bite into the insulating tube to lock the insulating tube.

[Action]

In this invention, the protrusion is provided inside the fixed portion,
In addition, since the locking claws that are formed in an acute angle are provided at the ends of the fixed part, they are locked in the circumferential direction and the axial direction, and the insulating tube is not attached due to vibration or bending during assembly. Even when pulled, the insulating tube is reliably prevented from coming off by both of the locking means.

〔Example〕

1 and 2 are an overall configuration diagram and a configuration diagram of a main part of a connector of a starter motor according to an embodiment of the present invention. In the figure, reference numeral 15 is a fixed portion integrally formed with the terminal 1, and a V-shaped notch portion 15a is provided at an end portion thereof, and a tip thereof is formed into an acute-angled locking claw portion 15b. In addition, 16 is a protrusion (dowel) provided inside the fixing portion.
Is. Since the other respective configurations are the same as those of the conventional connector, the corresponding parts are designated by the same reference numerals and the description thereof will be omitted.

In the connector of the starter motor configured as described above, the fixing portion 15 is wound around the insulating tube 5 and fastened to prevent it from coming off, as in the conventional case. At this time, since the tip of the fixed portion 15 is a sharp locking claw portion 15b, the tip of the fixed portion 15 is slightly insulated.
Also, since the tip of the insulating tube 5 is formed in the end direction of the insulating tube 5, even if the insulating tube 5 is pulled by bending at the time of assembly, the insulating tube 5 bites at the tip of the fixing portion 15 and engages. It is stopped and prevented from coming off.

Further, since the protruding portion 16 is provided inside the fixed portion as a locking means in the circumferential direction of the lead wire, when the winding is fastened to the insulating tube 5, the surface of the insulating tube 5 is bitely locked.

As described above, since the insulating tube 5 is locked by both the locking claw portion at the tip of the fixed portion 15 and the inner protruding portion, the locking can be performed more reliably.

It should be noted that the above embodiment shows the case where the two projecting portions 16 are formed, but the number is not particularly limited, and the same effect can be obtained as long as it constitutes the locking means.

[Effect of device]

As described above, according to the present invention, the locking claw portion formed by notching the end portion of the fixing portion in the axial direction of the lead wire and sharply cutting in the axial direction of the lead wire bites into the insulating tube. In addition to locking, the protruding part is provided inside the fixed part and bites into the insulating tube to lock, so even if the insulating tube is pulled due to bending etc. during assembly, the locking claw part of the fixed part will be insulated. As it cuts into the tube and the lead wire is prevented from coming off in the axial direction, and it is stopped at multiple points by the locking claws and the protruding parts of the fixed part, so that the lead wire is There is an effect that both directions of the axial direction are stopped and the insulating tube is securely locked.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a connector of a starter motor according to an embodiment of the present invention, FIGS. 2 (a) and 2 (b) are a plan view and a front view showing a main portion of the connector of the starter motor, and FIG. FIG. 4 is a configuration diagram showing a connector of a conventional starter motor, FIG. 4 is a configuration diagram of a brush device using the connector of the starter motor, and FIG. 5 is a plan view showing a main part of the connector of the starter motor. In the figure, 1 is a terminal, 3a and 3b are brushes, 4 is a lead wire,
Reference numeral 5 is an insulating tube, 15 is a fixed portion, 15a is a cutout portion, 15b is a locking claw portion, and 16 is a protruding portion. The same reference numerals in the drawings indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] 1. A terminal connected to an output terminal of an electromagnetic switch, and one end of which is connected to this terminal,
The other end of the insulation tube is connected to the brush of the electric motor and has a lead wire to which the insulation tube is fitted, and the fixing portion integrally formed with the terminal is wound so as to be tightened on the insulation tube. In a connector of a starter motor for fixing, a projecting portion is provided inside the fixing portion, and an end portion of the fixing portion is cut out in the axial direction of the lead wire to form a sharp angle in the axial direction of the lead wire. A connector for a starter motor, wherein a formed locking claw portion is provided, and the projecting portion and the locking claw portion bite into the insulating tube to lock the insulating tube.