JPH0440931B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to the insulation of a stator core of a rotating electric machine, particularly a small electric motor, and the holding of a terminal piece for connecting an output wire of a stator coil and a power supply side lead wire. The present invention relates to a method of manufacturing a rotating electrical machine stator having a terminal block to be stored therein.

[Conventional technology]

As shown in FIG. 5, the conventional stator of a rotating electric machine has an end plate 2 made of an insulator provided on a stator core 1, and a terminal block 5 provided on this end plate 2.
The lead wires 4a, 4b of the stator coils 3a, 3b and the power supply side lead wires 7a, 7b were directly welded by soldering or the like to the two terminal pieces 6a, 6b fixed by caulking or implantation.

[Problem that the invention seeks to solve]

The stator of the conventional rotating electric machine described above has difficulty in workability due to soldering of the lead wires 4a, 4b of the stator coils 3a, 3b and the terminal pieces 6a, 6b of the power supply side lead wires 7a, 7b, and the difficulty of soldering. There were various problems such as poor reliability of the welded part and the soldered welded part being exposed.

The present invention has been made to solve the above problems, and aims to provide a stator with good workability and high reliability.

[Means for solving problems]

The method for manufacturing a stator for a rotating electric machine of the present invention includes a terminal block provided on an end plate on a stator core, which is configured with a housing portion in which a plurality of chambers are formed, and a terminal block provided on an end plate on a stator core. The length of the terminal piece to which the side lead wire is connected is such that the tip part protrudes outside the housing part so that the lead wire of the stator coil can be easily connected, and the width of the protruding part is such that the width of the protruding part is such that the terminal piece The tip is made thinner than the width, and a claw is formed for welding the lead wire, and after the lead wire is connected, this tip is cut together with the tip of the lead wire and stored in each of the above-mentioned rooms. It is designed to be fixed.

[Effect]

In this invention, the power supply side lead wire is connected to the terminal piece before it is stored and fixed in each room, while the output wire of the stator coil is pulled to the claw of the terminal piece through the groove formed on the back surface of the housing part. Since the terminal piece is hooked up and further routed to the tip of the terminal piece and connected by fusing the lead wire at the claw portion, the lead wire is always wired at the target position and workability is facilitated.

〔Example〕

1 to 4 show an embodiment of the present invention, in which FIG. 1 is a perspective view showing the overall configuration, FIG. 2 is an enlarged perspective view showing an exploded insulator terminal block portion, FIG. 3 is an enlarged perspective view illustrating the assembly process, and FIG. 4 is an enlarged perspective view after assembly.

In FIGS. 1 and 2, 8 is a terminal block provided on the end plate 2 of the insulator, and this terminal block 8 is E
Consisting of a housing part 9 surrounded by a letter-shaped wall, this terminal block 8 has two chambers 10a and 10b formed therein, and grooves 11a to 1 are formed in the wall of the housing part 9.
1d, 12a, 12b and 13a, 13b are formed, respectively. 14a and 14b are terminal pieces bent into an L-shape, and the power supply side lead wires 7a and 7b are connected to these terminal pieces 14a and 14b by caulking, respectively, and each vertical piece of the terminal pieces 14a and 14b is inserted into the groove 11a and 11b. and 11c, 11d and fix it. The terminal pieces 14a, 14b are formed with hooks 15a, 15b for hooking the lead wires 4a, 4b of the stator coils 3a, 3b, and furthermore, the terminal pieces 14a, 14b have a length such that their tips protrude outward from the housing part 9. In addition, the width of the protruding portion is made narrower than the width of the terminal pieces 14a, 14b.

Next, the installation method will be explained. The lead wires 4a, 4b of the stator coils 3a, 3b are connected to the grooves 12a, 12b on the back surface of the housing part 9, the fusing claws 15a, 15b, and the terminal piece tips 16a, 1.
Route the wires in the order of the tips of 6b, and connect the claws 15a,
The portion 15b is welded by fusing to connect the lead wires 4a, 4b and the terminal pieces 14a, 14b, respectively.

Next, as shown in FIG. 3, the terminal piece tips 16a, 16b are cut together with the lead wire tip, and the terminal piece tips 16a, 16b are separated. Next, the terminal piece 14 protruding toward the outer circumferential side of the housing portion 9
The tips of a and 14b are bent by about 90 degrees and housed in two chambers 10a and 10b provided in the housing part 9.

Next, as shown in FIG.
After inserting the resin into the chambers 10a and 10b, resin 18 is injected from the top of each chamber 10a and 10b and fixed.

〔Effect of the invention〕

As explained above, in this invention, a terminal block is provided on the end plate of the insulator on the stator core, a plurality of chambers are formed by the housing part of this terminal block, and the power supply side lead wire is connected to these chambers. A terminal piece is fixed, the tip part of which is long enough to protrude outside the housing part, and whose width is narrower than the width of the terminal piece part to be housed in the housing part, and furthermore, a fusing part provided on the terminal piece is fixed. After hooking the stator coil to the claw, and then routing it to the tip of the terminal piece for wiring, connect the stator coil to the claw by fusing with the claw, and connect the terminal piece together with the tip of the fixed coil. After cutting, the terminal pieces are stored and fixed in each room with the side openings closed, which improves the workability of welding the claws and connecting the power supply lead wire, and provides highly reliable and stylish fixing. There are advantages to being able to have children.

[Brief explanation of drawings]

1 to 4 show an embodiment of the present invention, in which FIG. 1 is a perspective view showing the overall structure, FIG. 2 is an enlarged perspective view showing an exploded insulator terminal block, FIG. 3 is an enlarged perspective view illustrating the assembly process, FIG. 4 is an enlarged perspective view after assembly, and FIG. 5 is a perspective view showing the entire conventional configuration. In the figure, 1 is the stator core, 2 is the end plate, and 3 is the stator core.
a, 3b are stator coils, 4a, 4b are stator coil lead wires, 7a, 7b are power supply side lead wires, 8
is a terminal block, 9 is a housing part, 10a, 10b are rooms, 11a to 11d, 12a, 12b, 13
a, 13b are grooves, 14a, 14b are terminal pieces, 15
15a and 15b are claws, 16a and 16b are the tips of terminal pieces, 17 is a film, and 18 is a resin. In addition,
The same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims] 1. Multiple rooms are formed on the end plate made of an insulator that covers the end face of the stator core of a rotating electric machine to house the terminal pieces that connect the power supply side lead wire and the output wire of the stator coil. A terminal block composed of a housing part is provided, terminal pieces connected to the power supply side lead wires are located inside the housing part are housed and fixed in the plurality of rooms, and the tips of the terminal pieces are connected to the housing part. The length of the stator coil should be such that it protrudes further outward, and the width of its tip should be narrower than the width of the terminal piece stored in the housing, and the lead wire of the stator coil should be placed on the stator coil side inside the housing. The terminal piece is hooked from the formed groove to a fusing claw provided on the terminal piece, and further routed to the tip portion for wiring, fusing the lead wire at the claw portion, and A method for manufacturing a stator for a rotating electrical machine, characterized in that the terminal piece is cut together with the tip end of the lead wire, and the terminal piece is housed and fixed in each of the chambers with the side surface closed.