JPS622920Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a connection fixing device for rotating electric machines such as electric motors and generators.

Conventionally, when fixing the connection between the stator coil end of a rotating electrical machine and the lead wire, an electrically insulating tube is placed over each soldered connection, and the connections are bundled at the end of the stator coil. Therefore, the workability is very poor and a lot of work is required.

In view of the above, an object of the present invention is to provide a wire connection part fixing device that can quickly and reliably fix a wire connection part.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes an alternating current generator as a rotating electric machine, which has a stator 4 formed by winding a stator coil 3 around an iron core 2. A cylindrical first cover ₅₁ that covers the outward protrusion 3a of the stator coil 3 and a cylindrical second cover 52 that covers the inward protrusion 3b of the stator coil 3, the cooling fan, _etc. sandwich the stator 4, and the first cover 5 They are coupled by a plurality of through bolts 6 that pass through the coupling protrusions 5 ₁ a and 2 a of the second cover 5 ₂ and the coupling protrusion 5 ₂ a of the second cover 5 ₂ .

The first cover 5 ₁ is made of synthetic resin or the like, has electrical insulation properties, and has a plurality of locking claws 8 protruding from its inner end surface as shown in FIGS. An annular step portion 9 formed on the outer peripheral surface of the iron core 2
It is temporarily fixed to the stator 4 by locking it. Further, the first cover ₅₁ has a protrusion 10 protruding from its outer peripheral surface, and on the top surface of the protrusion 10, three wire connection parts are fitted which extend in the generatrix direction and communicate between both ends of the protrusion 10. The grooves 11 ₁ to 11 ₃ and a pair of mounting grooves 12 facing each other are arranged in parallel.

The three stator coil terminals 13 ₁ to 13 ₃ are
The wires are drawn out through a window hole 7a formed in the peripheral wall of the first cover ₅₁ adjacent to the protrusion 10, and are connected to the lead wires ₁₄₁ to ₁₄₃ through connection tubes 15, and each connection portion is connected to each fitting. Groove 11 ₁ ~ 1
1 Fitted into ₃ .

The fixing plate 16 is made of synthetic resin or the like like the first cover ₅₁ , and has electrical insulation properties, and its both sides are fitted into the mounting grooves 12, respectively, to fit into the fitting grooves ₁₁₁ to _113. At the same time, each connection portion is pressed into each fitting groove 11 ₁ to 11 ₃ to prevent it from coming out. At that time, the two grooves 13 ₂ , 13 ₃ are inserted into the sawtooth-like engagement recesses 17 formed on the inner surface of the fixing plate 16 .
The proximal bent portion 16a of the fixing plate 16 is engaged with the outer end surface of the projection 10 as shown in FIGS. 1 and 5. By stopping the fixing plate 16, the first cover 5
₁ A, and at the same time each lead wire 14 ₁ to 14 ₃ is connected to the proximal bent portion 16 a and the protruding portion 1
0 and the outer end surface.

As described above, according to the present invention, the electrically insulating cylindrical cover 5 ₁ covers the stator coil 3 of the rotating electrical machine 1.
A plurality of fitting grooves 11 ₁ - 11 3 into which a plurality of connection parts of lead wires 14 1 - 14 ₃ and stator coil terminals _{13 1 - 13 3 are} fitted, and these fitting grooves 11 ₁ - 11 are formed on the outer peripheral surface of A pair of mounting grooves 12 facing each other with ₃ in between are arranged in parallel, and each connection portion is placed in both mounting grooves 12, covering each of the fitting grooves 11 ₁ to 11 ₃ , and connecting each connection portion to each fitting groove 11 ₁ to 11 _3. Electrically insulating fixing plate 1 to hold
6, each connection part can be quickly and reliably fixed outside the cylindrical cover ₅₁ .
It also has a good appearance.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a side view with main parts of the alternator cut away, Fig. 2 is an exploded perspective view of the cover and fixing plate, and Fig. 3 is a cross-sectional view of the alternator. Line sectional view, Figure 4 is a line sectional view taken from Figure 2,
FIG. 5 is a view in the direction of the arrow in FIG. DESCRIPTION OF SYMBOLS 1... AC generator as a rotating electrical machine, 3... Stator coil, 5 ₁ ... First cover, 11 ₁ to 1
1 ₃ ... Wire connection fitting groove, 13 ₁ - 13 ₃ ... Stator coil terminal, 14 ₁ - 14 ₃ ... Lead wire, 16 ... Fixing plate.

Claims (1)

[Scope of utility model registration request] Lead wires 14 1 _{to 14} are connected to the outer peripheral surface of the electrically insulating cylindrical cover 5 ₁ that covers the stator coil 3 of the rotating electric machine 1 .
A plurality of fitting grooves 11 _{1 - 1 into which a plurality of connection parts between 14 3} and stator coil terminals 13 _{1 - 13 3} are fitted
1 ₃ and a pair of mounting grooves 12 facing each other across the fitting grooves 11 ₁ to 11 ₃ are arranged side by side, and each connection is made in both mounting grooves 12 by covering each fitting groove 11 ₁ to 11 ₃ . A device for fixing connection parts of a rotating electrical machine, which is equipped with an electrically insulating fixing plate 16 for holding parts in fitting grooves ₁₁₁ to ₁₁₃ .