CN112910120A

CN112910120A - Stator insulation framework, stator with same and motor

Info

Publication number: CN112910120A
Application number: CN202110261046.9A
Authority: CN
Inventors: 李文宇; 李庆; 曾文志; 陈彬; 曾拓; 苏得喜
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Kaibang Motor Manufacture Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Kaibang Motor Manufacture Co Ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-06-04

Abstract

The invention provides a stator insulation framework, a stator with the stator insulation framework and a motor with the stator insulation framework, wherein the stator comprises a stator core and a winding; the insulating framework comprises an upper framework and a lower framework; the upper framework is provided with a first winding groove and a first wire passing groove, and the lower framework is provided with a second winding groove and a second wire passing groove; the first winding slot and the second winding slot are used for winding the winding, and the first wire passing slot and the second wire passing slot are used for passing through a bridge wire of the winding; the lower framework is provided with a support frame for supporting a bridge wire of the winding; the upper framework, the lower framework and the stator core are connected through limiting pieces and limiting grooves; when the stator insulation framework is applied to a stator, a plurality of stator cores are respectively connected with a plurality of upper frameworks and a plurality of lower frameworks, and windings are wound in a first winding slot and a second winding slot; a gap bridge wire of the winding extends through the first wire passing groove and the second wire passing groove; the tension control device has the advantages of simple structure, easiness in operation and higher production efficiency, and the tightness of the gap bridge wire of the winding is accurately controlled through the support frame of the lower framework.

Description

Stator insulation framework, stator with same and motor

Technical Field

The invention relates to the technical field of motors, in particular to a stator insulation framework, a stator with the stator insulation framework and a motor with the stator insulation framework.

Background

The motor body generally comprises a stator, a rotor, an end cover and other components, wherein the stator comprises a stator core, an insulating framework and a winding. There are many drawbacks to the insulating armatures used in current electric machines. For example, when the stator is rounded, the windings within the slots tend to be loosely exposed or tightened to snap due to the routing pattern.

The patent with application number 201520348503.8 proposes an insulating framework of a motor and a motor with the insulating framework, which can improve the above problems to some extent; but has great limitation, and the tightness of the bridge wire can be adjusted only by the depth of the wire passing groove; for a stator with a thin framework and a compact stator core structure, the problem of abnormal looseness or tightening and breaking of a bridge wire cannot be solved by changing the depth of a wire passing groove; meanwhile, the bridge wire is wired on the outer side of the framework baffle plate, so that the bridge wire is easily in metal contact with an external end cover to generate poor pressure resistance; in addition, the stator of the mode needs to use a circuit board, the material cost of the motor and the height of the motor are increased, the space volume of the motor is increased, and the quality risks of loosening, winding breakage and the like of the circuit board in the transportation process need to be additionally considered.

Disclosure of Invention

In view of the above, the invention provides a stator insulation framework, and a stator and a motor having the same, so as to solve the problems that a winding in the prior art is easy to loose and expose or is tightened to break.

The invention provides a stator insulation framework, wherein a stator comprises a stator core and a winding, and the stator core forms a limit groove; the insulating framework comprises an upper framework and a lower framework; the upper framework and the lower framework are connected with the stator core through the limiting grooves; a first winding groove and a first wire passing groove are formed in the upper framework, and a second winding groove and a second wire passing groove are formed in the lower framework; the first winding slot and the second winding slot are used for winding the winding, and the first wire passing slot and the second wire passing slot are used for passing through a bridge wire of the winding;

and two ends of the lower framework are respectively provided with a supporting frame for supporting the bridging line of the winding.

Further optionally, the support frame comprises a base frame, a connecting arm, and a supporting arm; the bottom of the base frame is fixed on the lower framework, the connecting arm extends to the left side or the right side of the base frame from the base frame, and the supporting arm extends to the upper side or the lower side of the connecting arm from the tail end of the connecting arm; the support arms of the support frames at the two ends of the lower framework extend in opposite directions.

Further optionally, the extending distance of the connecting arm relative to the left side or the right side of the base frame is adjustable, and the extending direction of the connecting arm to the left side or the right side of the base frame is the connecting direction of two adjacent stator cores; the tightness of the gap bridge wire of the winding can be adjusted by adjusting the position of the connecting arm relative to the base, so that the gap bridge wire of the winding is prevented from being loosened and exposed or tightened to break.

Further optionally, the support frame has a first support frame and a second support frame, and is oppositely disposed on two sides of the lower framework; the supporting arm of the first supporting frame extends upwards, and the supporting arm of the second supporting frame extends downwards;

when a plurality of lower frameworks form a straight strip shape or a circular shape, the first supporting frame and the second supporting frame of the adjacent two lower frameworks form a supporting structure to support the bridging line of the winding.

Further optionally, the upper frame has a first outer baffle, a first inner baffle, and a first connection portion; the first outer baffle and the first inner baffle are oppositely arranged on two sides of the first connecting part and are connected through the first connecting part; a first wire passing column is formed between the first outer baffle and the first inner baffle.

Further optionally, the first wire passing groove is formed between the first outer baffle and the first wire passing column; the first winding slot is formed between the first inner baffle and the first wire passing column.

Further optionally, a first limiting member extending to the lower side of the upper framework is formed at the bottom of the first connecting portion; the outer part of the first limiting piece can be clamped in the limiting groove, so that the upper framework is connected with the upper end of the stator core; and a third winding slot is formed inside the first limiting part and used for winding the winding.

Further optionally, the number of the first limiting members is two, and the first limiting members are disposed on two sides of the upper frame and are symmetrical with respect to the center of the upper frame.

Further optionally, a clamping groove is formed on the first outer baffle and used for fixing a power line; the width of the inlet of the clamping groove is smaller than the outer diameter of the power line, and a stress buffer area is formed in the clamping groove and can accommodate the deformation of the power line.

Further optionally, the lower framework has a second outer baffle, a second inner baffle and a second connecting portion; the second outer baffle and the second inner baffle are oppositely arranged on two sides of the second connecting part and are connected through the second connecting part; and a second wire passing column is arranged between the second outer baffle and the second inner baffle.

Further optionally, the second wire passing groove is formed between the second outer baffle and the second wire passing column; the second winding slot is formed between the second inner baffle and the second wire passing column.

Further optionally, a second limiting member extending above the lower framework is formed at the top of the second connecting portion; the outer part of the second limiting piece can be clamped in the limiting groove, so that the lower framework is connected with the lower end of the stator core; a fourth winding slot is formed inside the second limiting part and used for winding the winding.

Further optionally, the number of the second limiting members is two, and the second limiting members are disposed on two sides of the lower frame and are symmetrical with respect to the center of the lower frame.

Further optionally, a contact pin is arranged on the upper framework and/or the lower framework, the bridge wire of the winding passes through the first wire passing groove and the second wire passing groove, and the end part of the bridge wire can be fixed on the contact pin.

The invention also provides a stator, which is provided with a stator iron core, a winding and any one of the stator insulation frameworks; when the plurality of stator cores form a straight strip shape, the plurality of upper frameworks and the plurality of lower frameworks are respectively connected with the corresponding stator cores; the winding is wound in the first winding slot, the second winding slot, the third winding slot and the fourth winding slot; the bridge wire of the winding extends through the first wire passing groove and the second wire passing groove;

when a plurality of stator cores form a circle, the supporting frames of the adjacent lower frameworks support the gap bridge wire of the winding.

Further optionally, when the plurality of stator cores form a straight strip shape, the length of a gap bridge line of a winding between the center lines of two adjacent stator insulation frameworks is L1; when the plurality of stator cores form a circle, the length of a gap bridge wire of a winding between the central lines of two adjacent stator insulation frameworks is L2; the length of the connecting arm of the lower framework is designed or the distance between the connecting arm of the lower framework and the pedestal is adjusted, so that the distance between the connecting arm of the lower framework and the pedestal is 0< L1-L2<3 mm.

The invention also provides a motor, which is provided with the stator insulation framework or the stator.

The invention provides a stator insulation framework, wherein a stator comprises a stator iron core and a winding, and the insulation framework comprises an upper framework and a lower framework; a first winding groove and a first wire passing groove are formed on the upper framework, and a second winding groove and a second wire passing groove are formed on the lower framework; the first winding slot and the second winding slot are used for winding the winding, and the first wire passing slot and the second wire passing slot are used for passing through a bridge wire of the winding; the lower framework is provided with a support frame for supporting and adjusting the tightness of the gap bridge wire of the winding; a first limiting piece is formed below the upper framework and matched with the limiting groove of the stator core to realize the connection of the upper framework and the stator core; a second limiting part is formed above the lower framework and matched with the limiting groove of the stator core, so that the lower framework is connected with the stator core; when the stator insulation framework is applied to a stator, a plurality of upper frameworks and lower frameworks are respectively connected with corresponding stator iron cores, and windings are wound in a first winding slot and a second winding slot; a gap bridge wire of the winding extends through the first wire passing groove and the second wire passing groove; the supporting frames of the adjacent lower frameworks support the gap bridge wires of the windings and adjust the tightness of the gap bridge wires of the windings; the supporting structure formed by the adjacent supporting frames can effectively improve poor tightness of the gap bridge wire of the traditional framework winding; in addition, the gap bridge wire of the winding is wired through the wire passing groove, so that the problem of looseness or tension abnormality of the gap bridge wire of the winding is solved, and the hidden troubles of poor voltage resistance and the like caused by metal contact between the gap bridge wire of the winding and an external end cover due to wiring outside the insulating framework baffle are improved; the invention has simple structure, low production cost, easy operation and high production efficiency, and can effectively solve the problems of circuit board material waste, motor space structure waste, easy loosening of the circuit board, increased winding broken wire quality risk and the like.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

Fig. 1 is a schematic structural diagram of an embodiment of a stator insulation framework provided by the present invention;

2a, 2b and 2c are schematic structural views of an embodiment of the stator assembly provided by the invention;

FIG. 3 is a schematic structural diagram of an embodiment of the stator explosion provided by the present invention;

fig. 4a and 4b are schematic structural diagrams of an embodiment of the stator provided by the invention when the stator is formed into a straight bar shape;

fig. 5a and 5b are schematic structural diagrams of an embodiment of the stator provided by the invention when the stator is formed into a round shape;

in the figure:

1-upper framework; 11-a first outer baffle; 111-a first wire-passing trough; 112-card slot; 12-a first wire passing post; 121-a first winding slot; 13-a first inner baffle; 14-a first connection; 15-a first limit stop; 151-third winding slot; 16-pin;

2-lower skeleton; 21-a second outer baffle; 211-a second wire trough; 22-a second wire passing post; 221-a second winding slot; 23-a second inner baffle; 24-a second connection; 25-a second limit; 251-a fourth winding slot; 26-a support frame; 261-a base frame; 262-a connecting arm; 263-a support arm;

3-a stator; 31-a stator core; 311-limiting groove;

41-power line; 42-terminal.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and "a" and "an" generally include at least two, but do not exclude at least one, unless the context clearly dictates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

The invention provides a stator insulation framework, wherein a stator comprises a stator iron core and a winding, and the insulation framework comprises an upper framework and a lower framework; a first winding groove and a first wire passing groove are formed on the upper framework, and a second winding groove and a second wire passing groove are formed on the lower framework; the first winding slot and the second winding slot are used for winding the winding, and the first wire passing slot and the second wire passing slot are used for passing through a bridge wire of the winding; the lower framework is provided with a support frame for supporting and adjusting the tightness of the gap bridge wire of the winding; a first limiting piece is formed below the upper framework and matched with the limiting groove of the stator core to realize the connection of the upper framework and the stator core; a second limiting part is formed above the lower framework and matched with the limiting groove of the stator core, so that the lower framework is connected with the stator core; a third winding groove and a fourth winding groove are formed in the first limiting part and the second limiting part respectively and used for winding a winding; when the stator insulation framework is applied to a stator, a plurality of upper frameworks and lower frameworks are respectively connected with corresponding stator cores, and windings are wound in a first winding slot, a second winding slot, a third winding slot and a fourth winding slot; a gap bridge wire of the winding extends through the first wire passing groove and the second wire passing groove; the support frames of the adjacent lower frameworks support the gap bridge wires of the windings, and the tightness of the gap bridge wires of the windings is adjusted through the positions of the connecting arms; the invention has simple structure, easy operation and higher production efficiency, can accurately control the tightness of the gap bridge wire of the stator winding, and effectively solves the problems of loosening of a circuit board, increased quality risk of winding breakage and the like.

Examples

< insulating frame >

As shown in fig. 1, the present embodiment provides a stator insulation framework, wherein a stator 3 includes a stator core 31 and a winding, the stator core 31 forms a limiting slot 311; the insulating framework comprises an upper framework 1 and a lower framework 2 which are arranged at two ends of the limiting groove 311 of the stator core 31; a first winding slot 121 and a first wire passing slot 111 are formed on the upper framework 1, and a second winding slot 221 and a second wire passing slot 211 are formed on the lower framework 2; the first winding slot 121 and the second winding slot 221 are used for winding the winding, and the first wire passing slot 111 and the second wire passing slot 211 are used for passing a bridge wire of the winding;

specifically, the two limiting grooves 311 are respectively disposed on two sides of the stator core 31; the upper framework 1 is arranged at the upper end of the stator core 31, and the lower framework 2 is arranged at the lower end of the stator core 31; the first winding slot 121 and the first wire passing slot 111 are formed at the top of the upper bobbin 1; the second winding slot 221 and the second wire passing slot 211 are formed at the bottom of the lower bobbin 2; the first winding slot 121 and the second winding slot 221 are arranged on the same side, so that winding is convenient; the first wire passing groove 111 and the second wire passing groove 211 are arranged on the same side, so that a bridge wire of the winding can be conveniently passed through.

The lower framework 2 is provided with a support frame for supporting and adjusting the tightness of a gap bridge wire of the winding; in particular, the support frame between adjacent lower frames 2 may form a support structure, which may support the gap bridge wire of the winding.

< stator Unit >

As shown in fig. 2a, 2b and 3, the stator unit provided by the present embodiment is formed by sequentially arranging an upper frame 1, a stator core 31, a winding and a lower frame 2; the upper framework 1 is provided with a first outer baffle 11, a first inner baffle 13 and a first connecting part 14; the first outer baffle 11 and the first inner baffle 13 are oppositely arranged at two sides of the first connecting part 14 and are connected through the first connecting part 14; a first wire passing column 12 is formed between the first outer baffle 11 and the first inner baffle 13; a first wire passing groove 111 is formed between the first outer baffle 11 and the first wire passing column 12; a first winding slot 121 is formed between the first inner barrier 13 and the first wire passing stud 12.

Preferably, the bottom of the first connecting portion 14 is formed with a first stopper 15 extending below the upper frame 1; the outer part of the first limiting member 15 can be clamped in the limiting groove 311, so that the upper framework 1 is connected with the upper end of the stator core 31; the first stopper 15 is formed with a third winding groove 151 therein for winding a winding.

In some preferred embodiments, there are two first limiting members 15 disposed on two sides of the upper frame 1 and symmetrical with respect to the center of the upper frame 1, and there are two corresponding limiting grooves 311 corresponding to the positions of the first limiting members 15.

As shown in fig. 2c, the embodiment provides an upper frame 1, wherein a slot 112 is formed on the first outer baffle 11 for fixing an external power line; the width of the inlet of the clamping groove 112 is smaller than the outer diameter of the external power line, and the clamping groove 112 is provided with a stress buffer area which can accommodate the deformation of the external power line; the external power line enters the card slot 112 through the entrance of the card slot 112 and is limited and fixed through the stress buffer zone.

As shown in fig. 2a, 2b and 3, the present embodiment provides the lower frame 2 having a second outer barrier 21, a second inner barrier 23 and a second connecting portion 24; the second outer baffle 21 and the second inner baffle 23 are oppositely arranged at two sides of the second connecting part 24 and are connected through the second connecting part 24; a second wire passing column 22 is arranged between the second outer baffle plate 21 and the second inner baffle plate 23; a second wire passing groove 211 is formed between the second outer baffle 21 and the second wire passing column 22; a second winding slot 221 is formed between the second inner baffle 23 and the second winding post 22.

Preferably, the top of the second connecting portion 24 is formed with a second stopper 25 extending above the lower frame 2; the outer part of the second limiting member 25 can be clamped in the limiting groove 311, so that the lower framework 2 is connected with the lower end of the stator core 31; the second stopper 25 is internally formed with a fourth winding groove 251 for winding a winding.

In some preferred embodiments, the second limiting members 25 have two, are disposed on two sides of the lower frame 2 and are symmetrical with respect to the center of the lower frame 2, and correspond to the positions of the two limiting grooves 311 of the stator core 31.

Preferably, the support frame 26 includes a base frame 261, a connecting arm 262 and a supporting arm 263; the bottom of the base frame 261 is fixed on the lower frame 2, the connecting arm 262 extends from the base frame 261 to the left or right side of the base frame 261, and the supporting arm 263 extends from the end of the connecting arm 262 to the upper or lower side of the connecting arm 262; the support arms 263 of the support frame 26 at both ends of the lower frame 2 extend in opposite directions.

The connecting arm 262 is not limited to extend from the base frame 261 to the left or right of the base frame 261, and may extend from the base frame 261 to the left front side, the left rear side, the right front side, or the right rear side of the base frame 261, and the extending direction of the connecting arm 262 may be set as required.

Preferably, the extending distance of the connecting arm 262 relative to the left or right side of the base frame 261 is adjustable, and the extending direction of the connecting arm 262 from the base frame 261 to the left or right side of the base frame 261 is the connecting direction of two adjacent stator cores 31; by adjusting the position of the connecting arm 262 relative to the base 261, the tightness of the gap bridge wire of the winding can be adjusted, and the gap bridge wire of the winding is prevented from being loosened and exposed or tightened to cause tensile failure;

specifically, when the gap wire of the winding is too loose, the position of the connecting arm 262 relative to the base frame 261 is increased, so that the supporting arm 263 supports the gap wire of the winding; when the gap wire of the winding is over-tightened, the position of the connecting arm 262 relative to the base frame 261 is reduced, so that the supporting arm 263 supports the gap wire of the winding.

Preferably, the supporting frame 26 has a first supporting frame and a second supporting frame, and is oppositely disposed at two sides of the lower frame 2; the supporting arm 263 of the first supporting frame extends upwards, and the supporting arm 263 of the second supporting frame extends downwards; when a plurality of lower frameworks 2 form a straight strip shape or a round shape, the first supporting frames and the second supporting frames of two adjacent lower frameworks 2 are arranged in a staggered mode to form a supporting structure, and the supporting effect is achieved on the bridge wires of the windings.

Preferably, the first winding slot 121 on the top of the upper bobbin 1, the third winding slot 151 on the bottom of the upper bobbin 1, the second winding slot 221 on the bottom of the lower bobbin 2, and the fourth winding slot 251 on the top of the lower bobbin 2 constitute winding slots for winding; the first wire passing groove 111 of the upper framework 1 and the second wire passing groove 211 of the lower framework 2 form a wire passing groove of a gap bridge wire of the windings, and the gap bridge wire is used for passing through the windings;

go up the first outer baffle 11 of skeleton 1 and the second outer baffle 21 homonymy setting of skeleton 2 down, go up the first interior baffle 13 of skeleton 1 and the second interior baffle 23 homonymy setting of skeleton 2 down, go up the first locating part 15 card of skeleton 1 and locate stator core 31's upper end in the spacing groove 311, the second locating part 25 card of skeleton 2 is located in the spacing groove 311 of stator core 31's lower extreme, so realize going up skeleton 1, down be connected of skeleton 2 and stator core 31.

In some preferred embodiments, the upper frame 1 and/or the lower frame 2 is provided with a pin 16, and the bridge wire of the winding passes through the first wire passing groove 111 and the second wire passing groove 211, and the ends thereof can be fixed to the pin 16.

It should be noted that, according to the difference of the motor gear, a plurality of pins 16 may be disposed on the upper frame 1 or the lower frame 2.

< stator >

As shown in fig. 4a, 4b, 5a and 5b, the stator provided by the present embodiment is composed of a plurality of stator units described above, and has a stator core 31, a winding and a stator insulating skeleton described above; when the plurality of stator cores 31 are formed in a straight strip shape, the plurality of upper frames 1 and the plurality of lower frames 2 are respectively connected with the corresponding stator cores 31; windings are wound in the first, second, third and fourth winding

slots

121, 221, 151 and 251 of the stator unit; the gap bridge wire between the respective windings extends through the first and second

wire passing slots

111 and 211;

when the plurality of stator cores 31 are formed into a round shape, the first support frame and the second support frame of two adjacent lower frameworks 2 are arched to form a support structure and support the gap bridge wire of the winding, so that the effective travel distance of the gap bridge wire of the winding is increased; by adjusting the position of the connecting arm 262 relative to the base frame 261, the tightness of the gap bridge wire of the winding is further adjusted, and the situation that the gap bridge wire of the winding is loosened and exposed or tightened to cause tensile failure is effectively prevented.

Preferably, when the plurality of stator cores 31 are formed into a straight strip shape, the length of the gap bridge line of the center line winding of two adjacent insulating frameworks is L1; when the plurality of stator cores 31 are formed into a circular shape, the length of a gap bridge line of a winding between the central lines of two adjacent stator insulation frameworks is L2; through designing the length of the connecting arm 262 of the lower framework 2 or adjusting the distance between the connecting arm 262 of the lower framework 2 and the base frame 261, the distance between 0 and L1-L2 is less than 3mm, so that the problem that the stator core 31 is abnormally pulled off due to the fact that a gap bridge wire of a winding is loosened and exposed or tightened after the stator core is in a straight strip shape to a circular shape is effectively solved; specifically, when the plurality of stator cores 31 are formed in a circular shape, the length of the gap bridge line of the winding between the center line of one of the two adjacent stator insulating frames and the end of the supporting arm 263 of the other stator insulating frame is a, the length of the gap bridge line of the winding between the ends of the supporting arms 263 of the two stator insulating frames is c, and the length of the gap bridge line of the winding between the end of the supporting arm 263 of the one stator insulating frame and the center line of the other stator insulating frame is b, then L2 is a + b + c.

Preferably, the end of the external power line is connected with the contact pin 16 by welding through the connection terminal 42, and then the external power line is limited and fixed in the slot 112 of the upper frame 1 along the first wire passing groove 111 and the second wire passing groove 211; specifically, the external power line enters the card slot 112 through an inlet of the card slot 112, and is limited and fixed through a stress buffer area in the card slot 112, so that the external power line is prevented from being pulled out; the inlet distance P of the clamping groove 112 is generally not more than the outer diameter of a single external power line, and on one hand, the stress buffer area in the clamping groove 112 is characterized in that the external power line can generate slight elastic deformation in the process of passing through the clamping groove 112, so that the external power line can conveniently penetrate in the clamping groove, and the insulating framework is prevented from cracking due to the external force action in the threading process; on the other hand, the external power line can be prevented from sliding out.

The stator can be made by the following method:

firstly, forming a stator core 31 into a straight strip shape, correspondingly assembling a plurality of upper frameworks 1 and a plurality of lower frameworks 2 on the stator core 31, and automatically assembling pins 16 on the upper frameworks 1 by equipment;

secondly, the equipment automatically winds the winding in a winding groove, and the wire end and the wire tail of the winding are respectively wound at a contact pin 16 of the upper framework 1;

finally, the stator core 31 is formed into a circular shape and welded at the joint of the stator core 31, the end of the external power line is welded with the pin 16 through the connecting terminal 42, and the other end of the external power line passes through the first wire passing groove 111 and the second wire passing groove 211 and passes through the clamping groove 112 of the upper frame 1 to fix the external power line.

Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A stator insulation framework comprises a stator core (31) and a winding, wherein the stator core (31) forms a limiting groove (311); the insulating framework is characterized by comprising an upper framework (1) and a lower framework (2); the upper framework (1) and the lower framework (2) are connected with the stator core (31) through the limiting groove (311); a first winding slot (121) and a first wire passing slot (111) are formed in the upper framework (1), and a second winding slot (221) and a second wire passing slot (211) are formed in the lower framework (2); the first winding slot (121) and the second winding slot (221) are used for winding the winding, and the first wire passing slot (111) and the second wire passing slot (211) are used for passing through a bridging wire of the winding;

and two ends of the lower framework (2) are respectively provided with a supporting frame (26) for supporting the gap bridge wire of the winding.

2. Stator insulation backbone according to claim 1, characterized in that the support frame (26) comprises a base frame (261), a connection arm (262) and a support arm (263); the bottom of the base frame (261) is fixed on the lower framework (2), the connecting arm (262) extends from the base frame (261) to the left side or the right side of the base frame (261), and the supporting arm (263) extends from the tail end of the connecting arm (262) to the upper side or the lower side of the connecting arm (262); the extending directions of the supporting arms (263) of the supporting frame (26) positioned at the two ends of the lower framework (2) are opposite.

3. The stator insulation framework as claimed in claim 2, wherein the extension distance of the connecting arm (262) relative to the left side or the right side of the base frame (261) is adjustable, and the extension direction of the connecting arm (262) towards the left side or the right side of the base frame (261) is the connection direction of two adjacent stator cores (31).

4. The stator insulation framework according to claim 2, wherein the support frame (26) has a first support frame and a second support frame, and is oppositely arranged on two sides of the lower framework (2); the supporting arm (263) of the first supporting frame extends upwards, and the supporting arm (263) of the second supporting frame extends downwards;

when a plurality of lower frameworks (2) form a straight strip shape or a round shape, the first supporting frame and the second supporting frame of the adjacent two lower frameworks (2) form a supporting structure, and the gap bridge wire of the winding plays a supporting role.

5. A stator insulation backbone according to claim 1, characterized in that the upper backbone (1) has a first outer barrier (11), a first inner barrier (13) and a first connection (14); the first outer baffle (11) and the first inner baffle (13) are oppositely arranged at two sides of the first connecting part (14) and are connected through the first connecting part (14); a first wire passing column (12) is formed between the first outer baffle (11) and the first inner baffle (13).

6. The stator insulation backbone of claim 5, wherein the first wire passing groove (111) is formed between the first outer baffle (11) and the first wire passing post (12); the first winding slot (121) is formed between the first inner baffle (13) and the first wire passing column (12).

7. The stator insulation bobbin according to claim 5, wherein a first stopper (15) extending below the upper bobbin (1) is formed at the bottom of the first connection portion (14); the outer part of the first limiting piece (15) can be clamped in the limiting groove (311) to enable the upper framework (1) to be connected with the upper end of the stator core (31); the first stopper (15) is internally formed with a third winding slot (151) for winding the winding.

8. The stator insulation framework according to claim 5, wherein the first outer baffle (11) is formed with a slot (112); the clamping groove (112) is provided with a buffer position which can fix the power line and accommodate the deformation of the power line.

9. A stator insulation skeleton according to claim 1, characterized in that the lower skeleton (2) has a second outer barrier (21), a second inner barrier (23) and a second connecting portion (24); the second outer baffle (21) and the second inner baffle (23) are oppositely arranged at two sides of the second connecting part (24) and are connected through the second connecting part (24); and a second wire passing column (22) is arranged between the second outer baffle (21) and the second inner baffle (23).

10. The stator insulation backbone of claim 9, wherein the second wire passing groove (211) is formed between the second outer baffle (21) and the second wire passing post (22); the second winding slot (221) is formed between the second inner baffle (23) and the second wire passing column (22).

11. A stator insulation bobbin according to claim 9, wherein the top of the second connecting portion (24) is formed with a second stopper (25) extending above the lower bobbin (2); the outer part of the second limiting piece (25) can be clamped in the limiting groove (311) to enable the lower framework (2) to be connected with the lower end of the stator core (31); a fourth winding groove (251) is formed inside the second stopper (25) for winding the winding.

12. A stator having a stator core (31), a winding and a stator insulating skeleton according to any one of claims 1 to 11; when the plurality of stator cores (31) form a straight strip shape, the plurality of upper frameworks (1) and the plurality of lower frameworks (2) are respectively connected with the corresponding stator cores (31); the winding is wound in the first winding slot (121), the second winding slot (221), the third winding slot (151) and the fourth winding slot (251); the bridge wire of the winding extends through the first wire passing groove (111) and the second wire passing groove (211);

when a plurality of stator cores (31) form a circle, the support frame of the lower framework (2) is adjacent to support the gap bridge wire of the winding.

13. The stator according to claim 12, wherein when a plurality of the stator cores (31) are formed into a straight strip shape, the gap bridge line length of the winding between the central lines of two adjacent stator insulating frameworks is L1; when the plurality of stator cores (31) are formed into a circular shape, the length of a gap bridge line of a winding between the central lines of two adjacent stator insulation frameworks is L2; the length of a connecting arm (262) of the lower framework (2) is designed or the distance between the connecting arm (262) of the lower framework (2) and the pedestal (261) is adjusted, so that the distance between 0< L1-L2<3 mm.

14. An electrical machine, characterized by a stator insulation skeleton according to any of claims 1-11 or a stator (3) according to any of claims 12-13.