JP5167457B2 - Resolver crossover damage and floating prevention structure - Google Patents

Description

  The present invention relates to a structure for preventing damage and floating of a jumper wire of a resolver, and in particular, connecting each phase of a crossover wire to a plurality of step portions formed on an outer surface of a protruding wall portion for guiding a connecting wire between the protruding magnetic poles. The present invention relates to a new improvement for individually guiding, preventing contact between phases and preventing floating lines between projecting magnetic poles.

As a crossover structure of a conventional resolver, for example, the structure disclosed in Patent Document 1 can be shown in FIGS.
That is, what is denoted by reference numeral 1 in FIGS. 4 and 5 is a ring-shaped stator, and a plurality of projecting magnetic poles 2 projecting inward at predetermined angular intervals are integrally formed on the inner surface of the ring-shaped stator 1. ing.

  On both surfaces of the annular stator 1, annular insulating covers 3 formed integrally or separately (two bodies) by insert molding are formed. The annular insulating cover 3 has tip ends of the projecting magnetic poles 2. The ear | edge part 4 for covering only the whole is formed protruding integrally.

  A stator winding 5 is wound around each protruding magnetic pole 2 via the ear 4, and a connecting wire 6 of the stator winding 5 is connected between the protruding magnetic poles 2 of the annular insulating cover 3. It is guided in contact with the outer surface 8a of the protruding wall portion 8 provided corresponding to the slot 7.

  The protruding wall portion 8 is configured as shown in FIG. 5 in an enlarged manner, and the first-phase connecting wire 6a, the second-phase connecting wire 6b, and the third-phase connecting wire 6c of the connecting wire 6 are formed on the outer surface 8a. Are formed in a stacked manner.

US Pat. No. 6,750,577

Since the crossover structure of the conventional resolver is configured as described above, the following problems exist.
That is, since the outer surface of the protruding wall portion is formed as a flat surface, the connecting wires of each phase are not separated but are stacked in the vertical direction and contact each other, so that the coating may be damaged and short-circuited. It was.
Moreover, the crossover of each phase had to be fixed with a varnish agent, which was a bottleneck in improving productivity during mass production.

According to the present invention, the crossover damage and floating prevention structure of a resolver is provided integrally or separately on a ring-shaped stator having a plurality of projecting magnetic poles projecting inward at predetermined angular intervals, and on both surfaces of the ring-shaped stator. A ring-shaped insulating cover; an ear portion protruding from the ring-shaped insulating cover and positioned corresponding to each protruding magnetic pole; a protruding wall portion formed in the ring-shaped insulating cover and protruding along the axial direction; A stator winding wound around the projecting magnetic pole through the ear, and a connecting wire of each stator winding wound around the projecting magnetic pole is guided through the projecting wall , Projecting wall portions are formed corresponding to the slots between the projecting magnetic poles, and a plurality of step portions are formed on the outer surface of the projecting wall portion, and the stator windings of different phases are formed on the step portions. It located the connecting wire of the line, over the respective In each step portion resolver connecting wire wound with and document retaining structure made of configurations that are positioned only in tension rather than fixed by varnish agent to,
Width along the circumferential direction of the collision Dekabe part, by matching a slot width of the slot, the height of each step portion for setting the height in response to each of the winding phase height, the The height of the winding portion of the protruding magnetic pole and the height of each step portion are set to the same height .

Since the crossover damage and floating prevention structure of the resolver according to the present invention is configured as described above, the following effects can be obtained.
That is, a ring-shaped stator having a plurality of projecting magnetic poles projecting inward at predetermined angular intervals, a ring-shaped insulating cover provided integrally or separately on both surfaces of the ring-shaped stator, and projecting from the ring-shaped insulating cover Ears that are formed and positioned corresponding to the projecting magnetic poles, projecting wall parts that are formed on the annular insulating cover and project along the axial direction, and are wound around the projecting magnetic poles via the ears comprising a stator winding, a connecting wire of the stator winding the wound on each salient-pole is guided through the projecting wall portion, the protruding wall portion in the slot between the respective protruding poles A plurality of stepped portions are formed on the outer surface of the protruding wall portion, and the connecting wires of the stator windings of different phases are located on the stepped portions, and the connecting wires Is fixed to each step with a varnish. By that you have been positioned only in tension rather than to prevent contact of each phase of the crossover wire cross, it can prevent damage without using a varnish agent to prevent lifting line, and prevent disconnection due to vibrations, produce The improvement of property can be obtained.
The width along the circumferential direction of the collision Dekabe part, by match the slot width of said slot, holding the connecting wire becomes full, the improvement in reliability.

  In the present invention, the crossover wires of each phase are individually guided to a plurality of step portions formed on the outer surface of the projecting wall portion for guiding the crossover wires between the respective projecting magnetic poles, and contact between the respective phases is prevented. An object of the present invention is to provide a resolver crossover damage prevention structure and to provide a protruding wall portion between the protruding magnetic poles to prevent floating lines and to suppress coil movement due to vibration.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the resolver crossover damage and floating prevention structure according to the present invention will be described below with reference to the drawings.
In addition, the same code | symbol is attached | subjected and demonstrated to a part the same as that of a prior art example, or an equivalent part.
1 and 2 is an annular stator, and a plurality of projecting magnetic poles 2 projecting inward at predetermined angular intervals are integrally formed on the inner surface of the annular stator 1. .

  A ring-shaped insulating cover 3 is formed on the inner surface of the ring-shaped stator 1 as an integral or separate body (two bodies) by insert molding. The ring-shaped insulating cover 3 has a tip end surface of each protruding magnetic pole 2. The ear | edge part 4 for covering only the whole is formed protruding integrally.

  A stator winding 5 is wound around each protruding magnetic pole 2 via the ear 4, and a connecting wire 6 of the stator winding 5 is connected between the protruding magnetic poles 2 of the annular insulating cover 3. It is guided in contact with the outer surface 8a of the protruding wall portion 8 provided corresponding to the slot 7.

The projecting wall portion 8 is configured as shown in FIG. 2 when enlarged, and a plurality of first, second, and third step portions 8A, 8B, and 8C are formed in a step shape. The first phase crossover line 6A is guided to the first step 8A, the second phase crossover line 6B is guided to the second step 8B, and the third phase crossover line 6C is guided to the third step 8C. Yes.

The connecting wires 6A to 6C positioned on the respective step portions 8A to 8C are independent from each other by the respective step portions 8A to 8C, and are brought into a non-contact state with each other by using a varnish agent as in the prior art. Even if 6A-6C is not fixed, it can position to each step part 8A-8C reliably only with tension.
In addition, the number of each crossover 6A-6C and each step part 8A-8C is changed by increase / decrease in the number of phases. Further, since the winding is provided by the protruding wall portion 8 between the protruding magnetic poles 2, floating lines can be prevented. Further , as shown in FIG. 1, the width W along the circumferential direction of the protruding wall portion 8 is the same as the slot width of the slot 7, which is suitable for positioning and holding the crossover wires 6A to 6C. is there.
Also, the height of each stepped portion 8A~8C is for setting the height in response to each of the winding phase height, the height of the winding portions of the projecting magnetic poles 2 and high for the stepped portions 8 A～8C The height is set to the same height.

It is a perspective view which shows the principal part of the crossover damage prevention structure of the resolver by this invention. It is an expanded sectional view of the principal part of FIG. It is an expansion perspective view of the principal part of FIG. It is a perspective view of the principal part which shows a conventional structure. It is an expanded sectional view of the A section of FIG.

DESCRIPTION OF SYMBOLS 1 Ring-shaped stator 2 Protruding magnetic pole 3 Ring-shaped insulating cover 4 Ear part 5 Stator winding 6 Junction wire 6A-6C 1st phase-3rd phase crossover wire 8 Protruding wall part 8A-8C 1st-3rd step part
W width

Claims (1)

An annular stator (1) having a plurality of projecting magnetic poles (2) projecting inward at predetermined angular intervals, and an annular insulating cover (3) provided integrally or separately on both surfaces of the annular stator (1) ), Ears (4) formed to protrude from the annular insulating cover (3) and positioned corresponding to the protruding magnetic poles (2), and formed in the annular insulating cover (3) along the axial direction. A protruding wall portion (8) protruding, and a stator winding (5) wound around each protruding magnetic pole (2) via the ear portion (4),
The connecting wire (6) of each stator winding (5) wound around each protruding magnetic pole (2) is guided via the protruding wall (8) ,
The protruding wall portion (8) is formed corresponding to the slot (7) between the protruding magnetic poles (2), and the outer surface (8a) of the protruding wall portion (8) has a plurality of step portions ( 8A to 8C) are formed, and the connecting wires (6A to 6C) of the stator windings (5) of different phases are located in the respective step portions (8A to 8C), and the connecting wires (6A to 6C) ) in the crossover wire wound with and document retaining structure of the resolver has the constitution that are positioned only in tension rather than fixed by varnish agent to the respective stepped portions (8A-8C),
The collision Dekabe unit width along the circumferential direction of (8) (W), said match the slot width of the slot (7), wherein the height of each phase winding of the step portions (8A-8C) By setting the height according to the height, the height of the winding portion of the projecting magnetic pole (2) and the height of each step (8A-8C) are set to the same height connecting wire wound with and floating structure for preventing, Relais resolver.

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