JPH0231893Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an insulating structure of a terminal attached to a bracket such as a front bracket of a starter motor.

[Problems to be solved by the prior art and the invention] Conventionally, in a bracket such as a front bracket of a starter motor, a terminal 5 insert-molded in an insulating material 4 is attached to the front bracket 1 as shown in FIG. This terminal 5 is fixed integrally using the holder 8.
There is one in which a portion facing the front bracket 1 and a terminal 10a on the motor cable 10 side are tightly fixed via a screw 11 screwed into the front bracket 1 side. However, in this case, the threading direction of the screw 11 is toward the front bracket 1 side, so if a long screw is used by mistake, the tip of the screw may interfere with the front bracket 1 or yoke 2, or the insulation distance may be shortened. Therefore, there is a risk that a short circuit will occur between the terminal 5 and the bracket 1 due to poor insulation.

[Means for solving the problem] In view of the above-mentioned circumstances, the present invention was devised for the purpose of providing an insulating structure for a terminal that can eliminate these drawbacks. A terminal is inserted into the bracket through a hole drilled in the bracket, and is bent into a substantially L-shape so that the base end faces toward the outer peripheral surface of the bracket, between the hole insertion portion and the hole. An insulating material is interposed, and the insulating material is fixed to the bracket via a terminal holder fixed to the outer peripheral surface of the bracket, so that the terminal is inserted and supported in an insulating manner into the bracket, and the terminal's bracket is Connect the tip that has entered inside to the pigtail planted in the brush on the motor side, and connect the base end facing the outer peripheral surface of the terminal bracket to the terminal on the cable side using a screw that is screwed in toward the bracket. The terminal holder is extended along the outer circumferential surface of the bracket to a portion facing the terminal on the cable side, and an insulator is integrally provided at the portion of the extended portion facing the screw. It is characterized by this.

With this configuration, the present invention is designed to prevent poor insulation from occurring even when terminals are connected using long screws.

[Example] Next, an example of the present invention will be described based on the drawings. In the drawings, 1 is the front bracket of the starter motor, and 2 is the front bracket 1.
3 is a yoke assembled to the front part, and 3 is a rear case assembled to the rear part of the yoke 2. These constitute the casing of the starter motor. The front bracket 1 is provided with a hole 1a for attaching a terminal. On the other hand 5
is a terminal, and the tip of the terminal 5 passes through the hole 1a and connects to the front bracket 1.
The terminal 5 is bent into a substantially L-shape so that the base end faces toward the outer peripheral surface of the front bracket 1, and the insertion portion of the terminal 5 into the hole 1a is insert-molded with an insulating material 4. Further, the end of a pigtail 7 implanted in the brush 6 is integrally fixed to the penetrating tip of the terminal 5.

8 is a terminal holder;
The terminal 5 is loosely fitted into the hole 1.
This terminal holder 8 is used to fix the terminal 5 so that it does not come out by applying it from the outside to the insulating material 4 that has penetrated through the terminal holder 8a and integrally tightening it to the front bracket 1 using screws 8a. teeth,
The terminal 5 is formed so as to extend along the outer circumferential surface of the front bracket 1 so as to face upward through a hole 5a formed at the base end thereof, and an insulator 9 is integrally provided in the extended portion. ing.

On the other hand, 10 is a motor cable, and a terminal 10a provided at the end of the cable 10 has a screw hole 10b screwed therein. Then, with this terminal 10a applied to the lower surface of the proximal end of the terminal 5, both terminals 5 and 10a are integrally connected by screwing and tightening the screw 11 toward the front bracket 1 side. It is becoming fixed. And in this case, screw 1
1 is arranged to face the insulator 9 .

In the embodiment configured as described above, in order to connect the cable 10 to the terminal 5, it is sufficient to place the terminals 5 and 10a on top of each other as described above, and secure them tightly with the screws 11. In case, screw 11 and front bracket 1
and the yoke 2 are reliably maintained in an insulated state. That is, in the present invention, since the insulator 9 is arranged so as to face the tip of the screw 11 that is screwed in toward the front bracket 1 side, it is impossible to accidentally use the long screw 11 to connect the terminals 5, 10a. Even if the screw 11 is tightened,
In this case, the front bracket 1 and the yoke 2 are in an insulated state with the insulator 9 interposed therebetween, so that the insulation of the terminal 5 is reliably ensured, and problems such as short circuits can be avoided.

Moreover, since this insulator 9 is provided on the terminal holder 8, it is installed at the same time as the terminal holder 8 is assembled, and therefore a separate dedicated insulator installation work is required when assembling the motor. Therefore, the assembly procedure does not become complicated at all, and the insulator 9
This will surely prevent forgetting to install the.

[Operation and Effect] In summary, since the present invention is constructed as described above, in order to fix the fixed terminal on the bracket side and the terminal on the cable side with screws,
The structure has an insulator interposed between the bracket and the screw, so even if long screws are used, the insulation between the screw and the bracket will be ensured, which will prevent insulation failure. can be prevented. Moreover, since this insulator is integrally provided with the terminal holder that fixes the terminal on the bracket side, the terminal can be assembled at the same time by fixing the terminal with the terminal holder, which makes the assembly work easier. There is no need for any complications, and there is no need to forget to attach the insulator.

[Brief explanation of the drawing]

The drawings show an embodiment of the insulating structure of the terminal according to the present invention, in which Fig. 1 is a partial sectional view of the starter motor, Fig. 2 is a front view of the front bracket, and Fig. 3 A and B are a partial sectional view of the starter motor. 4A and 4B are a front view and a sectional view of a terminal holder, and FIG. 5 is a sectional view of a main part of a terminal fixing part showing a conventional example. In the figure, 1 is the front bracket, 1a is the hole, 2
is a yoke, 4 is an insulator, 5 is a terminal, 6 is a brush, 7 is a pigtail, 8 is a terminal holder, 9
10 is an insulator, 10 is a motor cable, 10a is its terminal, and 11 is a screw.

Claims (1)

[Scope of utility model registration request] The hole 1a of the terminal 5 is bent into a substantially L-shape so that the tip end passes through the hole 1a drilled in the bracket 1 and enters the bracket 1, and the base end faces toward the outer peripheral surface of the bracket 1. An insulating material 4 is interposed between the penetration part and the hole 1a, and the insulating material 4 is fixed to the bracket 1 via a terminal holder 8 fixed to the outer peripheral surface of the bracket 1, and the terminal 5 is fixed to the bracket 1. It penetrates and supports the bracket 1 in an insulating manner, and the tip of the terminal 5 inserted into the bracket 1 is connected to the pigtail 7 implanted in the brush 6 on the motor side. Screw 11 into which the opposing base ends are screwed in toward the bracket 1 side.
is connected to the terminal 10a on the cable 10 side using the terminal holder 8.
is extended along the outer peripheral surface of the bracket 1 to a portion facing the cable side terminal 10a, and an insulator 9 is integrally provided at a portion of the extended portion facing the screw 11. structure.