CN217607590U - Stator insulation framework - Google Patents

Abstract

The utility model provides a stator insulation skeleton belongs to mechanical technical field. It has solved prior art and has had the poor problem of stability. This stator insulation skeleton is including being cylindric frame circle, frame circle inboard has a plurality of convex wire winding teeth along its circumference, and above-mentioned wire winding tooth is the inner links firmly with frame circle inboard, and the wire winding tooth outer end has convex baffle, recessed spiral shell groove has on the wire winding tooth, and above-mentioned spiral shell groove extends to wire winding tooth opposite side by wire winding tooth one side, wire winding tooth top portion in proper order, the quantity of spiral shell groove is a plurality of ways, and a plurality of spiral shell grooves are adjacent setting in proper order along the length direction of wire winding tooth. This stator insulation skeleton stability is high.

Description

Stator insulation framework

Technical Field

The utility model belongs to the technical field of machinery, a stator insulation skeleton is related to.

Background

The stator mainly comprises iron core, coil, insulating skeleton, has the several wire winding teeth that are used for alone winding the coil on the insulating skeleton, and the winding has the coil on the wire winding tooth.

There is known a motor stator having a stator core and upper and lower insulating frames mounted on upper and lower end faces of the stator core; a plurality of winding teeth for winding coils independently are arranged on the insulating framework, and the coils are wound on the winding teeth; and reserved lines at two ends of each coil of the upper insulating framework are collected to form a wiring end of the motor stator.

Since the coils wound on the winding teeth are multi-strand coils and the multi-strand coils are arranged next to each other in sequence, it can be seen that the structure causes two adjacent strands of coils to be attached together, and the operation stability of the coils is affected.

Chinese patent publication No. CN112583172A provides a stator and a motor, wherein the stator is in a ring shape with a central axis as a center. The stator is provided with: a tooth extending in a radial direction relative to the central axis; an insulating member attached to the teeth; and a coil formed of a conductive wire wound around the insulating member, the coil including: a first coil portion that contacts the insulating member; and a second coil portion that crosses the first coil portion, the first coil portion being sandwiched between the second coil portion and the insulating member.

It can be seen that the winding teeth of the insulating member have flat surfaces, and the adjacent two coils abut against each other, which also has a problem of poor stability.

Disclosure of Invention

The utility model aims at the above-mentioned problem that prior art exists, provide a compact structure and stable high stator insulation skeleton.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides an insulating skeleton of stator, is including being cylindric frame circle, frame circle inboard has a plurality of convex wire winding teeth along its circumference, and above-mentioned wire winding teeth the inner links firmly with frame circle inboard, and the wire winding teeth outer end has convex baffle, a serial communication port, recessed spiral groove has on the wire winding teeth, and above-mentioned spiral groove is extended to wire winding teeth opposite side by wire winding teeth one side, wire winding addendum portion in proper order, the quantity of spiral groove is a plurality of ways, and a plurality of spiral grooves are adjacent setting in proper order along the length direction of wire winding teeth.

This insulating skeleton of stator is creative sets up the spiral shell groove on the winding tooth to the spiral shell groove distributes in the both sides and the top department of winding tooth, after the coil is connected on the winding tooth, because every share of coil inlays respectively in the spiral shell inslot that corresponds, enables adjacent two strands of coils like this and can not contact, the effectual stability that has improved.

In the stator insulation framework, the inner wall of the frame ring is provided with a concave avoiding groove, and the avoiding groove extends from the upper part of the frame ring to the position of the spiral groove.

The coil led in from the outer side of the frame ring is embedded in the avoidance groove, so that the coil can be properly positioned, and the structural compactness of the coil is improved.

In foretell stator insulation skeleton, the axial top of frame circle has a plurality of fixture blocks that circumference evenly arranged, be equipped with the loop line groove that is used for fixed copper line on the fixture block lateral wall.

After the coil is wound at the annular groove, the connection stability of the coil and the clamping block can be improved.

In the stator insulation framework, the number of the ring wire grooves is a plurality of, and the plurality of ring wire grooves are adjacently arranged from top to bottom along the clamping block.

Because every strand of coil all inlays in the loop wire casing that corresponds, consequently, the compact set of every strand of coil ability that is located on the fixture block is in the same place, can avoid two adjacent strand of coil contacts simultaneously.

In the stator insulation framework, the avoiding groove is adjacent to the fixture block and is arranged along the axial direction of the frame ring.

That is to say, dodge the trench and be located the frame circle between winding tooth and fixture block, can rationally utilize the space of frame circle like this, guarantee that the coil can be stable wind on the winding tooth.

In the stator insulation framework, the framework ring, the winding teeth, the baffle and the fixture block are all of an integrated structure.

In the stator insulation framework, the projection of the frame ring along the radial direction is arranged, and the upper part of the baffle is positioned in the frame ring.

Compared with the prior art, when the winding of a coil circle in the stator insulation framework is wound on the winding teeth, the spiral grooves on the winding teeth can enable each strand of coil to stably enter preset positions in the process, and the avoidance grooves can accommodate the positions of initial reserved lines, so that the enamel skin is prevented from being scratched, and the coil is extruded in all directions.

After the coil winding is finished, the reserved wire is gathered after bypassing the fixture block, and the loop wire groove of the fixture block plays a role in fixing.

Meanwhile, the spiral groove is positioned on the winding teeth, the loop groove is positioned on the clamping block, the occupied space is small, and the integral structure is compact.

Drawings

Fig. 1 is a schematic perspective view of the stator insulation framework.

Fig. 2 is a schematic top view of the stator insulating frame.

In the figure, 1, a frame ring; 1a, avoiding grooves; 2. a winding tooth; 2a, a spiral groove; 3. a baffle plate; 4. a clamping block; 4a, a ring wire groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 and 2, this stator insulation skeleton is including being cylindric frame circle 1, frame circle 1 inboard has a plurality of convex wire winding teeth 2 along its circumference, and 2 the inner and 1 inboard links firmly of frame circle of above-mentioned wire winding teeth, and 2 outer ends of wire winding teeth have convex baffle 3, have recessed spiral groove 2a on the wire winding teeth 2, above-mentioned spiral groove 2a is extended to 2 opposite sides of wire winding teeth by 2 one side of wire winding teeth, 2 tops of wire winding teeth in proper order, the quantity of spiral groove 2a is a plurality of ways, and a plurality of spiral grooves 2a are adjacent setting in proper order along the length direction of wire winding teeth 2.

The inner wall of the frame ring 1 is provided with a concave avoiding groove 1a, and the avoiding groove 1a extends from the upper part of the frame ring 1 to the position of the spiral groove 2 a.

The axial upper side of the frame ring 1 is provided with a plurality of clamping blocks 4 which are uniformly arranged in the circumferential direction, and the outer side wall of each clamping block 4 is provided with a loop wire groove 4a for fixing a copper wire.

The number of the ring line grooves 4a is a plurality of, and the ring line grooves 4a are adjacently arranged from top to bottom along the fixture block 4.

The avoidance groove 1a is adjacent to the fixture block 4, and the avoidance groove 1a is arranged along the axial direction of the frame ring 1.

The frame ring 1, the winding teeth 2, the baffle 3 and the fixture block 4 are all of an integrated structure.

The projection of the frame ring 1 along the radial direction is that the upper part of the baffle 3 is positioned in the frame ring 1.

This insulating skeleton of stator is creative sets up spiral shell groove 2a on wire winding tooth 2 to spiral shell groove 2a distributes in wire winding tooth 2's both sides and top department, when the coil connection back on wire winding tooth 2, because every strand coil inlays respectively in corresponding spiral shell groove 2a, enables adjacent two strands of coils like this and can not contact, the effectual stability that has improved it.

Of course, there is a gap between two adjacent spiral grooves 2a, and when the coils are wound around the corresponding spiral grooves 2a, it is equivalent to form a guide rib for separating two adjacent coils between the two adjacent coils.

When the coil is wound on the winding teeth 2 for one circle, the spiral groove 2a on the winding teeth 2 can enable each strand of coil to stably enter a preset position in the process, and the avoiding groove 1a can contain the position of an initial reserved line, so that the paint skin is prevented from being scratched, and the coil is extruded in all directions.

After the coil winding is finished, the reserved line is collected after bypassing the fixture block 4, the line surrounding groove 4a of the fixture block 4 plays a role in fixing, in addition, an additional line binding process is avoided through the structure, the process is attractive, and the stability is higher.

It can be seen that the winding teeth have helical grooves and guide ribs. The spiral groove is communicated with the upper part, the lower part, the left part and the right part in the independent winding teeth after the motor stator is assembled. The groove shape of the spiral groove is a circular groove shape. In this embodiment, the diameter of the circular groove is the same as the diameter of the wire, for example, so as to effectively contain the copper wire and prevent the deviation caused by the mismatch between the diameter of the circular groove and the diameter of the wire.

The guide rib is arranged on one side of the spiral groove. The guide rib is a raised plane higher than the spiral groove. In this embodiment, the direction muscle shape is triangle-shaped, the unequal rectangle of size, and its purpose is in order to lead and separate the copper line, guarantees the copper line off tracking with the prevention of spiral groove simultaneously, makes the copper line arrange according to predetermineeing the first layer of completion to the copper line of control second, three-layer is arranged.

And a plurality of baffles are arranged at the end head of the radial inner side of the winding tooth, and are uniformly arranged in an annular shape on the circumferential direction of the radial inner side of the winding tooth. When the baffle is viewed along the axial direction, the shape of the baffle is characterized by a herringbone shape, the herringbone shape is provided with bevel edges inclining towards the left side and the right side, and the bevel edges are used for guiding extrusion force generated by extrusion of the wound copper wires so as to prevent the extrusion force from being concentrated; the outside of two hypotenuses is provided with little bellying, the effect of little bellying is to strengthen baffle intensity, prevents that wire winding copper line extrusion force from too big baffle and wire winding tooth damage that leads to.

And the inner wall of the frame ring is provided with an avoiding groove which is arranged at the position of the wire inlet side of the winding teeth. In the present embodiment, the number of avoidance grooves is 12. The avoiding groove has the function that the reserved line and the incoming line enter the space of the winding arrangement when the winding is arranged, and the phenomenon that the paint skin is scratched to cause poor turn-to-turn and the coil is conducted and burnt out due to the fact that the reserved line and the incoming line are gradually extruded by later copper wires in the winding process is avoided.

The fixture blocks are uniformly arranged in the circumferential direction and are arranged axially above the frame ring, and the outer side wall of each fixture block is provided with a loop wire groove for fixing a copper wire. The groove shape of the annular groove is a circular groove shape. In the present embodiment, the diameter of the circular groove is the same as the diameter of the copper wire, for example, and the purpose of the circular groove is to effectively contain the copper wire. In the embodiment, the coil of the winding teeth is provided with the initial reserved line and the tail end reserved line, and each reserved line is converged after being wound around the clamping block to play a role in fixing.

As described above, in order to prevent damage to the copper wire and ensure the stability of the fixation, in the present embodiment, the copper wire of the insulating bobbin is provided with rounded corners at a plurality of bent portions.

The features of the above-described embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above-described embodiments are not described, but should be construed as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the features.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that suitable modifications and variations of the above embodiments are within the scope of the present invention as claimed.

Claims (7)

1. The utility model provides an insulating skeleton of stator, is including being cylindric frame circle, frame circle inboard has a plurality of convex wire winding teeth along its circumference, and above-mentioned wire winding teeth the inner links firmly with frame circle inboard, and the wire winding teeth outer end has convex baffle, a serial communication port, recessed spiral groove has on the wire winding teeth, and above-mentioned spiral groove is extended to wire winding teeth opposite side by wire winding teeth one side, wire winding addendum portion in proper order, the quantity of spiral groove is a plurality of ways, and a plurality of spiral grooves are adjacent setting in proper order along the length direction of wire winding teeth.

2. The stator insulation framework of claim 1, wherein the frame ring inner wall has a recessed avoidance slot extending from the frame ring upper portion to the spiral slot.

3. The stator insulation framework of claim 2, wherein a plurality of clamping blocks are uniformly arranged in the circumferential direction above the framework ring in the axial direction, and a loop wire groove for fixing a copper wire is formed in the outer side wall of each clamping block.

4. The stator insulation framework of claim 3, wherein the number of the loop grooves is a plurality of loop grooves, and the plurality of loop grooves are adjacently arranged from top to bottom along the fixture block.

5. The stator insulation framework of claim 4, wherein the avoiding groove is adjacent to the fixture block and arranged along the axial direction of the framework ring.

6. The stator insulation framework of claim 5, wherein the frame ring, the winding teeth, the baffle and the fixture block are all of an integral structure.

7. The stator insulation framework of claim 6, wherein the upper portion of the baffle is located within the frame ring in a projection along a radial direction of the frame ring.

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