CN219322180U - Stator busbar assembly and flat wire stator - Google Patents
Stator busbar assembly and flat wire stator Download PDFInfo
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- CN219322180U CN219322180U CN202320821691.6U CN202320821691U CN219322180U CN 219322180 U CN219322180 U CN 219322180U CN 202320821691 U CN202320821691 U CN 202320821691U CN 219322180 U CN219322180 U CN 219322180U
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- stator
- copper bar
- neutral point
- wire winding
- flat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model discloses a stator busbar assembly and a flat wire stator, which comprise an insulating element, a flat copper wire winding, a neutral point copper bar and a three-phase copper bar; through setting up insulating element, can fix a position three-phase copper bar and flat copper wire winding's hookup location and neutral point copper bar solder joint, not only promoted the intensity of hookup location between three-phase copper bar and the flat copper wire winding, ensure the hookup location of three-phase copper bar and flat copper wire winding and the stability of electric safe distance between the neutral point copper bar solder joint moreover, and lie in between neutral point copper bar and the flat copper wire winding solder joint and form the contact through insulating element, can ensure that neutral point copper bar is at electric safe distance's within range along vertical direction with the flat copper wire winding solder joint of self below, thereby reach the effect that promotes neutral point copper bar position stability, and then realize stator busbar assembly job stabilization and ensured the technical effect of stator busbar assembly safety in the use.
Description
Technical Field
The utility model belongs to the technical field of motors, and particularly relates to a stator busbar assembly and a flat wire stator.
Background
The stator is an important component of the motor, and is widely used because the motor using the flat wire stator has advantages of low cost, good temperature performance and rigidity.
The flat wire stator comprises a flat copper wire winding, a neutral point copper bar and a three-phase copper bar, wherein a three-phase outgoing wire welding point, a neutral point copper bar welding point and a flat copper wire winding welding point are arranged on the flat copper wire winding and are respectively used for connecting the three-phase copper bar, the neutral point copper bar and adjacent flat copper wires.
The following problems are found in the manufacturing of flat wire stators and motor assembly processes:
(1) In the process of manufacturing the flat wire stator, the flat copper wire with the three-phase outgoing wire welding spots and the neutral point copper bar welding spots needs to be manually broken off to reach the electric safety distance, but the consistency of the adjusting mode is poor, and the broken flat copper wire has the tendency of returning to the original position, so that the breakdown accident of the motor is easily caused by the insufficient electric safety distance.
(2) In the manufacturing process of the flat wire stator, the distance between the neutral point copper bar and the flat copper wire winding welding spot below the neutral point copper bar along the vertical direction needs to be controlled to be an electric safety distance. The position of the neutral point copper bar in the height direction is positioned through the welding fixture, but the welding fixture is required to be disassembled and assembled in the positioning mode, so that the time cost for manufacturing the flat wire stator is increased, and the production efficiency of the flat wire stator is reduced.
(3) For the flat wire stator fixedly connected with the three-phase copper bar in the form of the cable outgoing line, the cable needs to be manually broken off in the assembly of the motor to adjust the position of the movable end part of the cable, but the welding strength between the three-phase copper bar on the cable and the welding point of the three-phase outgoing line can be influenced in the process, so that the risk of cracking of the welding position of the motor in the operation process is increased, and the failure of the motor is accelerated. In addition, in the bending process, stress cracking between the three-phase copper bars and the three-phase outgoing line welding spots on the flat wire stator cable is easy to be directly caused, so that the motor cannot be normally used.
Disclosure of Invention
In view of the above, the present utility model discloses a stator busbar assembly and a flat wire stator to overcome or at least partially solve the above-mentioned problems.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
in one aspect, the utility model provides a stator busbar assembly comprising an insulating element, a flat copper wire winding, a neutral point copper bar and a three-phase copper bar; the insulating element is provided with a first fixing hole and a second fixing hole at intervals; the first fixing hole penetrates through the connection position of the three-phase copper bar and the flat copper wire winding, and the second fixing hole penetrates through a neutral point copper bar welding spot arranged on the flat copper wire winding; the insulating element is positioned between a flat copper wire winding welding spot arranged on the flat copper wire winding and the neutral point copper bar and is respectively contacted with the flat copper wire winding welding spot, and the neutral point copper bar welding spot are welded and fixed.
Optionally, the insulating element is detachably connected with the neutral point copper bar.
Optionally, the insulating element is clamped with the neutral point copper bar.
Optionally, along the circumference direction of the flat copper wire winding, a first positioning block and a second positioning block are arranged on the insulating element at intervals, and the neutral point copper bar is located between the first positioning block and the second positioning block so as to form clamping connection with the insulating element.
Optionally, the insulating element is made of plastic.
Optionally, the insulating element is made of high-temperature-resistant plastic material.
Optionally, the insulating element is detachably connected to the flat copper wire winding.
Optionally, a positioning protrusion is arranged at the bottom end of the insulating element, and extends into a gap in the flat copper wire winding and forms an abutting joint with two sides of the gap.
In another aspect, the present utility model provides a flat wire stator comprising any one of the stator busbar assemblies described above.
The utility model has the advantages and beneficial effects that:
according to the stator busbar assembly, the insulating element is arranged, so that the connection position of the three-phase copper bar and the flat copper wire winding and the neutral point copper bar welding point can be positioned, the strength of the connection position between the three-phase copper bar and the flat copper wire winding is improved, the stability of the electrical safety distance between the connection position of the three-phase copper bar and the flat copper wire winding and the neutral point copper bar welding point is ensured, the insulating element is positioned between the neutral point copper bar and the flat copper wire winding welding point and forms contact, the distance between the neutral point copper bar and the flat copper wire winding welding point below the neutral point copper bar and the neutral point copper wire winding welding point along the vertical direction is ensured to be within the electrical safety distance range, the effect of improving the stability of the position of the neutral point copper bar is achieved, the working stability of the stator busbar assembly is further achieved, and the technical effect of safety of the stator busbar assembly in the use process is ensured.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a schematic diagram of a stator bus assembly according to the present embodiment;
FIG. 2 is an enlarged view of A in FIG. 1;
FIG. 3 is a partial cross-sectional view of FIG. 1;
fig. 4 is a schematic structural diagram of an insulating element in the stator busbar assembly according to the present embodiment.
Detailed Description
In order to make the objects, technical solutions and effects of the present utility model more clear, the technical solutions of the present utility model will be clearly and completely described below with reference to specific embodiments of the present utility model and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The following describes in detail the technical solutions provided by the embodiments of the present utility model with reference to the accompanying drawings.
As shown in fig. 1 to 4, the present embodiment includes a stator busbar assembly including a flat copper wire winding 1, a neutral point copper bar 2, a three-phase copper bar 3, and an insulating member 4. Adjacent flat copper wires in the flat copper wire winding 1 are welded and fixed through flat copper wire winding welding spots 13, and three pairs of three-phase copper bar welding spots 11 are arranged on the flat copper wire winding 1 and used for being welded and fixed with the three-phase copper bars 3, and three pairs of neutral point copper bar welding spots 12 are arranged simultaneously and used for being welded and fixed with neutral point copper bar connecting points 21 arranged on the neutral point copper bars 2. Each pair of three-phase copper bar welding spots 11 and each pair of center point copper bar welding spots 12 are arranged at intervals along the radial direction, and part of the flat copper wire winding welding spots 13 of the flat copper wire winding 1 are arranged below the neutral point copper bar 2 at intervals.
As shown in fig. 4, the insulating member 4 is provided with a first fixing hole 41 and a second fixing hole 42, the first fixing hole 41 penetrates through the connection position of the three-phase copper bar 3 and the flat copper wire winding 1, and the second fixing hole 42 penetrates through the neutral point copper bar welding spot 12 provided on the flat copper wire winding 1. The insulating element 4 is positioned between the flat copper wire winding welding point 13 and the neutral point copper bar 2 and is respectively contacted with the neutral point copper bar 2, and the neutral point copper bar 2 is fixedly connected with the neutral point copper bar welding point 12, so that the connection with the flat copper wire winding is formed.
In the stator busbar assembly of this embodiment, through setting up insulating element, can fix a position three-phase copper bar and the hookup location of flat copper wire winding and neutral point copper bar solder joint, not only promoted the intensity of hookup location between three-phase copper bar and the flat copper wire winding, ensure the stability of electric safe distance between hookup location and the neutral point copper bar solder joint of three-phase copper bar and flat copper wire winding, and lie in between neutral point copper bar and the flat copper wire winding solder joint and form the contact through insulating element, can ensure that the flat copper wire winding solder joint of neutral point copper bar and self below is along vertical direction within the scope of electric safe distance, thereby reach the effect that promotes neutral point copper bar position stability, and then realize stator busbar assembly job stabilization and ensured the technical effect of stator busbar assembly safety in the use.
Meanwhile, the stator busbar assembly is simple in structure, convenient to produce in volume, high in practicality and multifunctional in one object.
Preferably, the insulating element 4 is detachably connected with the neutral point copper bar 2, and the insulating element 4 is detachably connected with the flat copper wire winding 1, so that the convenience of maintenance and replacement of the insulating element can be improved.
Further, in this embodiment, the insulating element 4 is clamped to the neutral point copper bar connection point 21 provided on the neutral point copper bar, so that the installation position of the neutral point copper bar 2 can be determined by locating the neutral point copper bar connection point 21 in the insulating element 4, and the distance between the neutral point copper bar and the flat copper wire winding welding point is ensured to be within the electrical safety distance range, so that the convenience of locating the installation position of the neutral point copper bar is improved.
Specifically, as shown in fig. 1, 2 and 4, along the circumferential direction of the flat copper wire winding 1, the insulating element 4 is provided with a first positioning block 43 and a second positioning block 45 at intervals, and the neutral point copper bar connection point 21 is located between the first positioning block 43 and the second positioning block 45 and can form a clamping connection with the insulating element 4, so that the neutral point copper bar connection point 21 can be positioned, and the technical effect of improving the positioning simplicity of the neutral point copper bar is achieved.
In the present embodiment, the insulating element 4 positions one of the copper bar connection points 21 at each pair of center points, so that the number of the first positioning blocks and the second positioning blocks can be reduced, and the effect of saving the manufacturing cost of the insulating element can be achieved.
In other embodiments, the number of the first positioning blocks and the second positioning blocks may also be adjusted according to different positioning stability requirements of the neutral point copper bar, so as to position each neutral point copper bar connection point.
Preferably, the insulating element 4 is made of plastic. Through using the plastic material, not only can reach insulating effect, the light in weight can reduce the influence to stator busbar assembly quality moreover, promotes insulating element's suitability.
Further, the insulating element 4 made of plastic material is made of high temperature resistant plastic material, such as a mixture of polyphenylene sulfide and glass fiber or polyimide, so that the insulating element can adapt to the working environment temperature of the stator bus bar, and the service life of the insulating element is prolonged.
As shown in connection with fig. 3, the bottom end of the insulating element is provided with a positioning protrusion 44. Wherein the positioning protrusion 44 extends into the slit in the flat copper wire winding 1 and forms an abutment with the flat copper wire winding on both sides of the slit, thereby further improving the stability of the position of the insulating member.
In this embodiment, the insulating element is provided with three. Of course, in other embodiments, three insulating elements may be integrally connected. The insulating element in this example embodiment uses less raw material, thereby achieving a cost-effective technical effect.
The embodiment also provides a flat wire stator, which comprises the stator busbar assembly.
The foregoing is merely a specific embodiment of the utility model and other modifications and variations can be made by those skilled in the art in light of the above teachings. It is to be understood by persons skilled in the art that the foregoing detailed description is provided for the purpose of illustrating the utility model more fully, and that the scope of the utility model is defined by the appended claims.
Claims (9)
1. A stator busbar assembly, characterized by: the device comprises an insulating element, a flat copper wire winding, a neutral point copper bar and a three-phase copper bar; the insulating element is provided with a first fixing hole and a second fixing hole at intervals; the first fixing hole penetrates through the connection position of the three-phase copper bar and the flat copper wire winding, and the second fixing hole penetrates through a neutral point copper bar welding spot arranged on the flat copper wire winding; the insulating element is positioned between a flat copper wire winding welding spot arranged on the flat copper wire winding and the neutral point copper bar and is respectively contacted with the flat copper wire winding welding spot, and the neutral point copper bar welding spot are welded and fixed.
2. The stator buss bar assembly of claim 1, wherein: and the insulating element is detachably connected with the neutral point copper bar.
3. The stator buss bar assembly of claim 2, wherein: and the insulating element is clamped with the neutral point copper bar.
4. The stator bar assembly of claim 3, wherein: along the circumferencial direction of flat copper line winding, the interval is provided with first locating piece and second locating piece on the insulating component, the neutral point copper bar is located between first locating piece and the second locating piece, in order to form the joint with the insulating component.
5. The stator buss bar assembly of claim 1, wherein: the insulating element is made of plastic.
6. The stator bar assembly of claim 5, wherein: the insulating element is made of high-temperature-resistant plastic materials.
7. The stator buss bar assembly of any of claims 1-6, wherein: the insulating element is detachably connected with the flat copper wire winding.
8. The stator buss bar assembly of claim 7, wherein: the bottom end of the insulating element is provided with a positioning protrusion, and the positioning protrusion extends into a gap in the flat copper wire winding and is in butt joint with two sides of the gap.
9. A flat wire stator, characterized by: comprising the stator bus assembly of any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320821691.6U CN219322180U (en) | 2023-04-13 | 2023-04-13 | Stator busbar assembly and flat wire stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320821691.6U CN219322180U (en) | 2023-04-13 | 2023-04-13 | Stator busbar assembly and flat wire stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219322180U true CN219322180U (en) | 2023-07-07 |
Family
ID=87029369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320821691.6U Active CN219322180U (en) | 2023-04-13 | 2023-04-13 | Stator busbar assembly and flat wire stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219322180U (en) |
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2023
- 2023-04-13 CN CN202320821691.6U patent/CN219322180U/en active Active
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