CN220797920U - Star point copper bar and stator assembly - Google Patents
Star point copper bar and stator assembly Download PDFInfo
- Publication number
- CN220797920U CN220797920U CN202322281955.6U CN202322281955U CN220797920U CN 220797920 U CN220797920 U CN 220797920U CN 202322281955 U CN202322281955 U CN 202322281955U CN 220797920 U CN220797920 U CN 220797920U
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- Prior art keywords
- copper bar
- star point
- pins
- winding
- pin
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 67
- 239000010949 copper Substances 0.000 title claims abstract description 67
- 238000004804 winding Methods 0.000 claims abstract description 50
- 238000003466 welding Methods 0.000 claims abstract description 28
- 238000005476 soldering Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000009191 jumping Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model relates to the technical field of flat wire motors, in particular to a star point copper bar and a stator assembly. The star point copper bar comprises a copper bar main body, welding pins and fixing pins; the copper bar main body is rectangular in shape as a whole, and the welding pins are arranged at the long edge of one side of the copper bar main body; the fixed pin is arranged at the short side of one side of the copper bar main body, and is close to the long side of the other side of the copper bar main body; the welding pins are used for welding with outgoing lines of the stator winding; the fixing pin is used for fixedly mounting the thermistor. The utility model provides a novel star point copper bar structure, a thermistor is fixed on a star point copper bar through a heat shrinkage sleeve, a traditional binding line binding mode is replaced, a motor production process is optimized, a motor circuit is clearer and more reasonable, and the motor performance is ensured.
Description
Technical Field
The utility model belongs to the technical field of flat wire motors, and particularly relates to a star point copper bar and a stator assembly.
Background
With the rapid development of new energy automobiles, the permanent magnet synchronous motor is applied in a large scale, and is used as a core driving component of the new energy automobiles, and the high efficiency, the high speed and the high power density ratio are the main development trend of the permanent magnet synchronous motor. In the existing flat wire motor schemes, most of the fixing modes of the NTC thermistors (NTC, negative Temperature Coefficient thermistor) are fixed on windings or star point copper bars through binding wires. The operation difficulty of the binding line binding fixing mode is high, the operation is complex, and the automatic production efficiency is affected.
At present, star point copper bar structures of most flat wire motor stator assemblies in China are single, and space for fixing thermistors is not reserved. Therefore, in order to improve the automatic production efficiency of the flat wire motor, a new thermistor fixing scheme is needed to solve the problems.
Disclosure of Invention
In view of the above problems, the present utility model provides a star point copper bar, which includes a copper bar main body, a welding pin and a fixing pin;
the copper bar main body is rectangular in shape as a whole, and the welding pins are arranged at the long edge of one side of the copper bar main body; the fixed pin is arranged at the short side of one side of the copper bar main body, and is close to the long side of the other side of the copper bar main body;
the welding pins are used for welding with outgoing lines of the stator winding; the fixing pin is used for fixedly mounting the thermistor.
Further, the length of the fixed pin is 5-10mm, and the width of the fixed pin is 2-3mm.
Further, the tail end of the fixed pin is provided with a first limiting plate.
Further, a winding pin is further arranged on the copper bar main body;
the length of the winding pin is 5-10mm, and the width is 2-3mm.
Further, the winding pins and the welding pins are arranged at the same side long edge of the copper bar main body;
the tail end of the winding pin is provided with a second limiting plate; the long side of the second limiting plate and the long side of the winding pin are mutually perpendicular, and the length of the second limiting plate is 1.5-2mm.
The utility model also provides a stator assembly, which comprises a stator core, a stator winding, a thermistor and star point copper bars;
the stator winding is arranged on the stator core and is divided into an in-slot winding and an end winding; the in-slot windings are positioned in stator slots of the stator core, and the end windings are positioned at two ends of the stator core; the star point copper bars are arranged on the periphery of the end winding, and the thermistor is fixed on the star point copper bars through a heat shrinkage sleeve.
Further, the star point copper bar comprises a copper bar main body, a welding pin and a fixing pin;
the welding pins and the fixing pins are respectively arranged on the side edges of the copper bar main body; the welding pins are used for welding with outgoing lines of the stator winding;
one section of the thermistor is attached to the side face of the fixed pin, and the thermal shrinkage sleeve is sleeved on the fixed pin and the thermistor to fix the thermistor on the fixed pin.
The beneficial effects of the utility model are as follows:
1. the utility model provides a novel star point copper bar structure, a thermistor is fixed on a star point copper bar through a heat shrinkage sleeve, a traditional binding line binding mode is replaced, a motor production process is optimized, a motor circuit is clearer and more reasonable, and the motor performance is ensured.
2. The fixing pins and the welding pins are arranged separately, so that the fixing of the thermistor is realized while the overflow area of the star point copper bar is ensured.
3. The arrangement of the first limiting plate and the second limiting plate enhances the stability of the thermistor, prevents the heat shrinkage sleeve from jumping under larger tension, and ensures the automatic production efficiency of the motor.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 illustrates a front view of a stator assembly of an embodiment of the present utility model;
fig. 2 shows a schematic structure of a star point copper bar according to an embodiment of the present utility model.
In the figure: 1-a stator core; 2-stator windings; 3-thermistor; 4-heat-shrinkable sleeve; 5-star point copper bars; 501-a copper bar main body; 502-soldering pins; 503-fixing pins; 504-a first limiting plate; 505-wire winding pins; 506-second limiting plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present 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 embodiment of the utility model provides a stator assembly, which is shown in fig. 1, and comprises a stator core 1, a stator winding 2, a thermistor 3 and star point copper bars 5; the stator winding 2 is arranged on the stator core 1 and is divided into an in-slot winding and an end winding; the in-slot windings are positioned in stator slots of the stator core 1, and the end windings are positioned at two ends of the stator core 1; the star point copper bars 5 are arranged on the periphery of the end winding, and the thermistor 3 is fixed on the star point copper bars 5 through a heat shrinkage sleeve 4.
The embodiment of the utility model provides a novel star point copper bar structure, a thermistor is fixed on a star point copper bar through a heat shrinkage sleeve, a traditional binding line binding mode is replaced, a motor production process is optimized, a motor circuit is clearer and more reasonable, and motor performance is ensured.
Specifically, as shown in fig. 2, the star point copper bar 5 includes a copper bar main body 501, a soldering pin 502, and a fixing pin 503. The welding pins 502 and the fixing pins 503 are respectively arranged at the side edges of the copper bar main body 501; the welding pin 502 is used for welding with the outgoing line of the stator winding 2; the fixing pins 503 are used for fixedly mounting the thermistor 3.
One section of the thermistor 3 is attached to the side face of the fixed pin 503, and the heat shrinkage sleeve 4 is sleeved on the fixed pin 503 and the thermistor 3 to fix the thermistor 3 on the fixed pin 503.
Further, the copper bar main body 501 is rectangular overall, and the welding pins 502 are arranged at a long side of one side of the copper bar main body 501; the fixing pins 503 are disposed at a short side of one side of the copper bar body 501, and the fixing pins 503 are close to a long side of the other side of the copper bar body 501. The fixing pin 503 and the welding pin 502 are arranged separately, so that the fixing of the thermistor 3 is realized while the overflow area of the star point copper bar 5 is ensured.
Specifically, the length of the fixing pin 503 is 5-10mm, and the width is 2-3mm. The size of the fixing pin 503 can be properly adjusted to adapt to different situations because of different use situations and different motor sizes and corresponding different sizes of the thermistor 3.
Preferably, the end of the fixing pin 503 is provided with a first limiting plate 504, and the length of the first limiting plate 504 is greater than the minimum inner diameter of the heat-shrinkable sleeve 4. Preventing the heat shrinkage bush 4 from jumping under a larger pulling force.
Further, the copper bar body 501 is further provided with a winding pin 505, and a section of the thermistor 3 may be wound on the winding pin 505. The length of the winding pin 505 is 5-10mm, and the width is 2-3mm.
The stability of the thermistor 3 is further enhanced by using the winding pins 505, so that the heat-shrinkable sleeve 4 is prevented from jumping under a larger pulling force.
Preferably, the winding pin 505 and the welding pin 502 are disposed at the same side long edge of the copper bar main body 501, and the end of the winding pin 505 is provided with a second limiting plate 506. The long side of the second limiting plate 506 and the long side of the winding pin 505 are perpendicular to each other, and the length of the second limiting plate 506 is 1.5-2mm.
The winding pin 505 is disposed at a position that does not interfere with the soldering of the soldering pin 502, or at a position where the entire space is wide. Preferably, the winding pin 505 is located between the two phase solder pins 502.
The thermistor 3 wound on the winding pin 505 is limited by the second limiting plate 506, so that the thermistor 3 is prevented from falling off when the stator is turned over in the motor production process. Further ensuring the automatic production efficiency of the motor.
Although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (7)
1. The star point copper bar is characterized by comprising a copper bar main body (501), welding pins (502) and fixing pins (503);
the copper bar main body (501) is rectangular in whole, and the welding pins (502) are arranged at the long side of one side of the copper bar main body (501); the fixed pins (503) are arranged at the short sides of one side of the copper bar main body (501), and the fixed pins (503) are close to the long sides of the other side of the copper bar main body (501);
the welding pins (502) are used for welding with outgoing lines of the stator winding; the fixing pin (503) is used for fixedly mounting the thermistor.
2. A star point copper bar according to claim 1, characterized in that the length of the fixing pins (503) is 5-10mm and the width is 2-3mm.
3. A star point copper bar according to claim 1, characterized in that the end of the fixed pin (503) is provided with a first limiting plate (504).
4. The star point copper bar according to claim 1, wherein the copper bar body (501) is further provided with a winding pin (505);
the length of the winding pin (505) is 5-10mm, and the width is 2-3mm.
5. The star point copper bar according to claim 4, characterized in that the winding pins (505) and the soldering pins (502) are arranged at the same side long side of the copper bar body (501);
the tail end of the winding pin (505) is provided with a second limiting plate (506); the long side of the second limiting plate (506) and the long side of the winding pin (505) are perpendicular to each other, and the length of the second limiting plate (506) is 1.5-2mm.
6. A stator assembly, characterized in that the stator assembly comprises a stator core (1), a stator winding (2), a thermistor (3) and a star point copper bar (5);
the stator winding (2) is arranged on the stator core (1) and is divided into an in-slot winding and an end winding; the in-slot windings are positioned in stator slots of the stator core (1), and the end windings are positioned at two ends of the stator core (1); the star point copper bar (5) is arranged on the periphery of the end winding, and the thermistor (3) is fixed on the star point copper bar (5) through a heat-shrinkable sleeve (4).
7. A stator assembly according to claim 6, characterized in that the star point copper bar (5) comprises a copper bar body (501), a welding pin (502) and a fixing pin (503);
the welding pins (502) and the fixing pins (503) are respectively arranged at the side edges of the copper bar main body (501); the welding pins (502) are used for welding with outgoing lines of the stator winding (2);
one section of the thermistor (3) is attached to the side face of the fixed pin (503), the heat-shrinkable sleeve (4) is sleeved on the fixed pin (503) and the thermistor (3), and the thermistor (3) is fixed on the fixed pin (503).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322281955.6U CN220797920U (en) | 2023-08-23 | 2023-08-23 | Star point copper bar and stator assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322281955.6U CN220797920U (en) | 2023-08-23 | 2023-08-23 | Star point copper bar and stator assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220797920U true CN220797920U (en) | 2024-04-16 |
Family
ID=90633072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322281955.6U Active CN220797920U (en) | 2023-08-23 | 2023-08-23 | Star point copper bar and stator assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220797920U (en) |
-
2023
- 2023-08-23 CN CN202322281955.6U patent/CN220797920U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |