CN220342116U - Stator structure - Google Patents

Abstract

The application discloses a stator structure. The stator structure includes: a stator core having a plurality of stator teeth arranged in the circumferential direction inside thereof; the armature assembly is sleeved on the circumference of the stator teeth; the connecting assembly is configured at the end part of the stator core and is used for connecting two adjacent armature assemblies in series to form a non-closed annular structure, one end of the annular structure is connected with an outgoing line in an extending mode, and the other end of the annular structure is connected to the central line assembly; the connecting assembly is internally provided with a plurality of groups of copper bar structures, each group of copper bar structure comprises a first copper bar, a second copper bar and a third copper bar which are arranged at intervals in a stacked mode, each group of copper bar structure is integrally formed through injection molding insulating media, and the first copper bar, the second copper bar and the third copper bar are respectively connected in series with adjacent in-phase armature windings. Through the mode, the insulating effect can be achieved by means of injection molding, meanwhile, the copper bars are used for achieving series connection between the in-phase armature windings, bending and welding of outgoing lines are reduced, and working efficiency is effectively improved.

Description

Stator structure

Technical Field

The application relates to the technical field of motors, in particular to a stator structure.

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 windings. In the prior art, as shown in fig. 1, part of the stator end is directly welded and connected by adopting an armature winding tail lead-out end, and the lead-out wire is required to be bent and connected for a plurality of times, so that the lead length is longer, the cost is higher, and the welding process is required to be manually operated, so that the working efficiency is lower; the other part of stator end adopts a laminated structure, and the interconnection of the armature windings is realized by using the bridge wire, but the layers of the bridge wire are separated by using an insulating pad, the operation process is complex, and the working efficiency is low.

Disclosure of Invention

To overcome the above drawbacks, the object of the present application is: the stator structure is characterized in that an end structure is subjected to modularized treatment, the length of a lead is reduced, and the working efficiency is improved.

In order to achieve the above purpose, the present application adopts the following technical scheme:

a stator structure, comprising: the stator core is internally provided with a plurality of stator teeth along the circumferential direction, and each group of stator teeth comprises B teeth, A teeth and C teeth which are sequentially arranged;

the armature assembly is sleeved on the circumference of the stator teeth, and a B-phase armature winding, an A-phase armature winding and a C-phase armature winding are correspondingly arranged on the armature assembly;

the connecting assembly is configured at the end part of the stator core and is used for connecting two adjacent armature assemblies in series to form a non-closed annular structure, one end of the annular structure is connected with an outgoing line in an extending mode, and the other end of the annular structure is connected to the central line assembly;

the connecting assembly is internally provided with a plurality of groups of copper bar structures, each group of copper bar structure comprises a first copper bar, a second copper bar and a third copper bar which are arranged at intervals in a stacked mode, each group of copper bar structure is integrally formed through injection molding insulating media, and the first copper bar, the second copper bar and the third copper bar are respectively connected in series with adjacent in-phase armature windings.

In a preferred embodiment, the centerline assembly is configured with a D-terminal connection, an E-terminal connection, and an F-terminal connection, which are respectively connected to armature windings of different phases.

In a preferred embodiment, the lead wires include a B-phase lead wire, an a-phase lead wire, and a C-phase lead wire, each connected to armature windings of a different phase.

In a preferred embodiment, the connecting assembly includes a plurality of first bridge wire assemblies, each group of first bridge wire assemblies is formed by integrally molding a group of copper bar structures through injection molding insulating media, and the first bridge wire assemblies are configured on the end face of the stator core through a first positioning structure.

In a preferred embodiment, the first positioning structure includes a first positioning column configured at an end of the stator core, a first positioning hole is cooperatively formed in a position, close to an end face of the stator core, of the first bridge wire assembly, and the first positioning column is inserted into the first positioning hole.

In a preferred embodiment, two adjacent first bridge wire assemblies are connected and configured with second bridge wire assemblies through second positioning structures, and each group of second bridge wire assemblies is formed by integrally molding a group of copper bar structures through injection molding insulating media.

In a preferred embodiment, the second positioning structure includes a second positioning hole formed in a surface of the first bridge wire assembly, which is far away from the stator core, and a second positioning post disposed on an end surface of the second bridge wire assembly, which is close to the first bridge wire assembly, and the second positioning post is inserted into the second positioning hole.

In a preferred embodiment, two adjacent copper bars are arranged at intervals through a fixing piece, and at least two clamping grooves are formed in the fixing piece.

In a preferred embodiment, the distance between two adjacent clamping grooves is 1.4-1.6mm.

The assembling method of the stator structure comprises the following steps:

s1: assembling the first copper bar, the second copper bar and the third copper bar, and then integrally injection-molding to generate a connecting assembly;

s2: sequentially embedding the armature assembly on stator teeth of the stator core;

s3: sequentially assembling the connection assemblies to the ends of the stator core;

s4: welding the copper bar with the leading-out end of the armature assembly;

and S5, respectively connecting the outgoing line and the central line assembly to the outgoing end of the armature assembly, which is not connected with the copper bar.

Advantageous effects

According to the stator structure, the armature windings and the outgoing lines are connected through the modularly-processed connecting assembly, the connecting assembly comprises the first bridge wire passing assembly and the second bridge wire passing assembly which are arranged in a specific modularized mode, copper bar structures are arranged in the first bridge wire passing assembly and the second bridge wire passing assembly, the outgoing lines are replaced by copper bars to be respectively connected with the armature windings in series, the lengths of the outgoing lines are effectively reduced, meanwhile, bending steps of the outgoing lines are reduced, and the working efficiency is effectively improved;

the copper bar is integrally formed through injection molding, so that the copper bar is relatively stable in structure, high in structural strength and good in anti-seismic performance; the insulating medium through moulding plastics reaches insulating effect, need not the manual work and additionally places the insulating piece, uses manpower sparingly, effectively improves work efficiency.

Drawings

The accompanying drawings are included to provide an understanding of the technical aspects of the present disclosure, and are incorporated in and constitute a part of this specification, illustrate the technical aspects of the present disclosure and together with the embodiments of the disclosure, not to limit the technical aspects of the present disclosure. The shapes and sizes of the various components in the drawings are not to scale, and are intended to be illustrative only of the present application.

FIG. 1 is a perspective view of a prior art stator structure in the background of the present application;

FIG. 2 is a schematic perspective view of a stator structure according to an embodiment of the present disclosure;

FIG. 3 is an enlarged partial schematic view of FIG. 2 at a;

FIG. 4 is an exploded view of a stator structure according to an embodiment of the present application;

fig. 5 is a schematic structural view of an a-phase armature winding of the stator structure according to the embodiment of the present application;

fig. 6 is a schematic perspective view of a copper bar structure in an embodiment of the present application;

fig. 7 is a schematic perspective view of a first positioning member according to an embodiment of the present application;

FIG. 8 is a flow chart of a method of assembling a stator structure of the present application;

reference numerals:

1. a stator core; 11. b teeth; 12. tooth A; 13. c teeth; 14. a first positioning column;

21. a phase B armature winding; 22. a phase A armature winding; 23. a C-phase armature winding;

31. a first bridge wire assembly; 311. a first positioning hole; 32. a second bridge wire assembly; 33. a centerline assembly; 331. a D-end connecting part; 332. e end connecting part; 333. an F-end connecting part;

41. a first copper bar; 42. a second copper bar; 43. a third copper bar;

51. a first clamping piece; 52. a second clamping piece; 53. a clamping groove;

61. a phase B outgoing line; 62. a phase A outgoing line; 63. and C phase outgoing line.

Detailed Description

The above-described aspects are further described below in conjunction with specific embodiments. It should be understood that these examples are illustrative of the present application and are not limiting the scope of the present application. The implementation conditions employed in the examples may be further adjusted as in the case of the specific manufacturer, and the implementation conditions not specified are typically those in routine experiments.

Next, a stator structure (hereinafter referred to as a stator structure) proposed in the present application is described with reference to the accompanying drawings.

Fig. 2 is a schematic perspective view of the stator structure of the present application.

The stator structure of the present application includes: the stator core 1 is provided with a plurality of stator teeth at intervals in the circumferential direction, the stator teeth are sleeved with armature components, the end parts of the armature components are provided with leading-out ends, one end surface of the stator core 1 close to the leading-out ends is provided with a connecting component, the connecting component is connected with the leading-out ends of the armature components, and two adjacent armature components are connected in series through the connecting component to form a non-closed annular structure. One end of the annular structure is connected with an outgoing line, the other end of the annular structure is connected with a central line assembly, and the outgoing line, the armature assembly and the central line assembly are mutually connected through the connecting assembly.

As shown in fig. 2 to 7, the stator teeth include B teeth 11, a teeth 12 and C teeth 13 arranged in order, and the armature assembly is correspondingly provided with B-phase armature windings 21, a-phase armature windings 22 and C-phase armature windings 23 in a matched manner. Wherein, the B phase armature winding 21 is sleeved on the circumference of the B tooth 11; the A-phase armature winding 22 is sleeved on the circumference of the A tooth 12; the C-phase armature winding 23 is sleeved on the circumference of the C-tooth 13.

As shown in fig. 2 to 7, in the present embodiment, 6 sets of stator teeth are arranged along the inner circumference of the stator core 1, and the armature assembly is correspondingly provided with 6 sets. The end of each phase armature winding is provided with two leading-out ends.

As shown in fig. 2-7, a plurality of groups of copper bar structures are configured inside the connecting assembly, and the series connection between adjacent in-phase armature windings is realized through the copper bar structures. Each group of copper bar structures comprises a first copper bar 41, a second copper bar 42 and a third copper bar 43 which are sequentially arranged, and each group of three copper bars are sequentially arranged at intervals from top to bottom through fixing pieces in a stacked mode and are integrally formed through injection molding of insulating media. The insulating medium fills gaps in the copper bar structure, so that insulation between two adjacent copper bars is realized. In addition, the copper bar structure is formed integrally through injection molding, so that the structural strength of the copper bar structure is effectively improved, and the anti-seismic effect is enhanced.

As shown in fig. 2-7, two adjacent copper bars are stacked with a gap by a fixing member, and the fixing member is provided with at least two clamping grooves 53. Preferably, the fixing member includes a first clamping member 51 and a second clamping member 52 according to different numbers of clamping grooves, and two clamping grooves are configured on the first clamping member 51 to fix and separate two adjacent copper bars, such as fixing the first copper bar 41 and the second copper bar 42, and/or fixing the second copper bar 42 and the third copper bar 43. Three clamping grooves are arranged on the second clamping piece 52 so as to fix the positions of the three copper bars and effectively enhance the stability of the whole internal structure of the bridge wire assembly. The number of the first clamping pieces 51 and the second clamping pieces 52 can be increased according to actual needs, and fixing pieces can be arranged on the inner side and the outer side of the bridge wire assembly, so that the stabilizing effect is improved, and the structural strength is enhanced. Preferably, notches (not shown) are formed at the inner and outer edges of the first copper bar 41, the second copper bar 42 and the third copper bar 43 for mounting the fixing members. In this embodiment, 4 first clamping members 51 and 4 second clamping members 52 are disposed on each group of bridge wire assemblies. Preferably, the distance between two adjacent clamping grooves is 1.4-1.6mm, and in the embodiment, the distance between two adjacent copper bars is controlled to be 1.5mm, so that the integral structure of the end part of the stator core 1 is tidy and good in consistency.

As shown in fig. 2-7, each group of copper bar structures are arranged at intervals in a stacked manner in the vertical direction, and two adjacent copper bars are fixed and separated by a fixing piece; the copper bars are respectively connected in series with the same-phase armature windings of different groups in a staggered relation in the horizontal direction. In this embodiment, two ends of the first copper bar 41 are respectively connected to the leading-out ends of two adjacent groups of B-phase armature windings 21, so as to realize the series connection of the B-phase armature windings 21, i.e. one leading-out end of one B-phase armature winding 21 is connected to a first copper bar 41, and the other leading-out end is connected to a first copper bar in another group of copper bar structures; two ends of the second copper bar 42 are respectively connected to the leading-out ends of the adjacent two groups of A-phase armature windings 22, so that the A-phase armature windings 22 are connected in series; the two ends of the third copper bar 43 are respectively connected to the leading-out ends of the C-phase armature windings 23 of two adjacent groups, so as to realize the series connection of the C-phase armature windings 23. The copper bar is connected with the leading-out end of the armature winding in a welding mode, bending steps of components are reduced, and working efficiency is effectively improved.

As shown in fig. 2-7, the connection assembly includes a plurality of groups of first bridge wire assemblies 31, and each group of first bridge wire assemblies 31 is integrally formed by injection molding an insulating medium from a copper bar structure. The first bridge wire assembly 31 is configured at the end part of the stator core 1, and is connected with two adjacent armature assemblies, and the first bridge wire assembly 31 is in positioning connection with the end part of the stator core 1 through a first positioning structure. A second bridge wire assembly 32 is arranged between two adjacent first bridge wire assemblies 31, each group of second bridge wire assemblies 32 is formed by integrally forming a group of copper bar structures through injection molding insulating media, and positioning connection is realized between the second bridge wire assemblies 32 and the first bridge wire assemblies 31 through a second positioning structure. Through the control of first location structure and second location structure, ensure that its relative position control is accurate, installation effectiveness effectively improves, and need not artifical plastic after the assembly is accomplished, uses manpower sparingly work.

As shown in fig. 2-7, the first positioning structure includes a first positioning column 14 configured at an end of the stator core 1, a first positioning hole 311 is cooperatively formed on an end surface of the first bridge wire assembly 31, which is close to the stator core 1, and the first positioning column 14 is inserted into the first positioning hole 311, so as to realize the assembly connection between the first bridge wire assembly 31 and the stator core 1, realize the precise control of positioning in the assembly process, and improve the assembly efficiency.

As shown in fig. 2-7, the second positioning structure includes a second positioning hole (not labeled) configured on an end surface of the first bridge wire assembly 31 facing away from the stator core 1, a second positioning post (not labeled) is cooperatively disposed on an end surface of the second bridge wire assembly 32 adjacent to the first bridge wire assembly 31, and the second positioning post is inserted into the second positioning hole, so that positioning connection between the first bridge wire assembly 31 and the second bridge wire assembly 32 is realized, and relative position control can be accurate.

As shown in fig. 2-7, the first positioning structure and the second positioning structure are formed by injection molding according to different molds in the injection molding process of the copper bar structure, and specific positioning structures include, but are not limited to, the above-mentioned modes.

As shown in fig. 2-7, the armature assembly forms an open ring structure under the series connection of copper bar structures, and one end of the armature assembly is connected with an outgoing line, wherein the outgoing line specifically comprises a B-phase outgoing line 61, an a-phase outgoing line 62 and a C-phase outgoing line 63; the other end is connected to a center line assembly 33.

As shown in fig. 2 to 7, wherein the B-phase lead wire 61 is connected to a lead-out terminal of the B-phase armature winding 21 to which the first copper bar 41 is not connected, the a-phase lead wire 62 is connected to a lead-out terminal of the a-phase armature winding 22 to which the second copper bar 42 is not connected, and the C-phase lead wire 63 is connected to a lead-out terminal of the C-phase armature winding 23 to which the third copper bar 43 is not connected.

In this embodiment, the three-phase lead wires are connected to the armature winding by welding.

As shown in fig. 2-7, the center line assembly 33 includes a D-end connection 331, an E-end connection 332, and an F-end connection 333, which are respectively connected to the lead-out ends of the armature assembly to which the copper bars are not connected. Preferably, the connecting part is connected with the leading-out end through welding, so that the working efficiency is effectively improved.

As shown in fig. 8, an assembling method applied to the above stator structure is performed according to the following steps:

s1: assembling the first copper bar, the second copper bar and the third copper bar, and then integrally injection-molding to generate a connecting assembly;

s2: sequentially embedding the armature assembly on stator teeth of the stator core;

s3: sequentially assembling the connection assemblies to the ends of the stator core;

s4: welding the copper bar with the leading-out end of the armature assembly;

and S5, respectively connecting the outgoing line and the central line assembly to the outgoing end of the armature assembly, which is not connected with the copper bar.

The installation is simple, and operating procedure is less, effectively improves assembly rate, and utilizes the modular structure of first bridge wire subassembly and second bridge wire subassembly, makes overall structure neat, and the uniformity is good, need not the manual work and carries out plastic many times, effectively uses manpower sparingly.

The foregoing embodiments are provided to illustrate the technical concept and features of the present application and are intended to enable those skilled in the art to understand the contents of the present application and implement the same according to the contents, and are not intended to limit the scope of the present application. All such equivalent changes and modifications as come within the spirit of the disclosure are desired to be protected.

Claims (9)

1. A stator structure, comprising:

the stator core is internally provided with a plurality of stator teeth along the circumferential direction, and each group of stator teeth comprises B teeth, A teeth and C teeth which are sequentially arranged;

the armature assembly is sleeved on the circumference of the stator teeth, and a B-phase armature winding, an A-phase armature winding and a C-phase armature winding are correspondingly arranged on the armature assembly;

the connecting assembly is configured at the end part of the stator core and is used for connecting two adjacent armature assemblies in series to form a non-closed annular structure, one end of the annular structure is connected with an outgoing line in an extending mode, and the other end of the annular structure is connected to the central line assembly;

the connecting assembly is internally provided with a plurality of groups of copper bar structures, each group of copper bar structure comprises a first copper bar, a second copper bar and a third copper bar which are arranged at intervals in a stacked mode, each group of copper bar structure is integrally formed through injection molding insulating media, and the first copper bar, the second copper bar and the third copper bar are respectively connected in series with adjacent in-phase armature windings.

2. The stator structure of claim 1, wherein,

the centerline assembly is configured with a D-end connection, an E-end connection, and an F-end connection that are respectively connected to armature windings of different phases.

3. The stator structure of claim 1, wherein,

the outgoing lines comprise a B-phase outgoing line, an A-phase outgoing line and a C-phase outgoing line, and are respectively connected to armature windings of different phases.

4. The stator structure of claim 1, wherein,

the connecting assembly comprises a plurality of first bridge wire assemblies, each group of first bridge wire assemblies is formed by integrally forming a group of copper bar structures through injection molding insulating media, and the first bridge wire assemblies are configured on the end face of the stator core through first positioning structures.

5. The stator structure of claim 4 wherein,

the first positioning structure comprises a first positioning column arranged at the end part of the stator core, a first positioning hole is formed in the first bridge wire component, close to one end face of the stator core, in a matched mode, and the first positioning column is inserted into the first positioning hole.

6. The stator structure of claim 4 wherein,

and two adjacent first bridging line assemblies are connected and configured with second bridging line assemblies through second positioning structures, and each group of second bridging line assemblies are formed by integrally molding a group of copper bar structures through injection molding insulating media.

7. The stator structure of claim 6 wherein,

the second positioning structure comprises a second positioning hole which is formed in one face of the first bridge wire assembly, far away from the stator core, a second positioning column is arranged on one end face, close to the first bridge wire assembly, of the second bridge wire assembly in a matched mode, and the second positioning column is inserted into the second positioning hole.

8. The stator structure of claim 1, wherein,

two adjacent copper bars are arranged at intervals through fixing pieces, and at least two clamping grooves are formed in the fixing pieces.

9. The stator structure of claim 8, wherein,

the distance between the two adjacent clamping grooves is 1.4-1.6mm.