CN116231415A - Composite busbar of driving motor and manufacturing method thereof - Google Patents
Composite busbar of driving motor and manufacturing method thereof Download PDFInfo
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- CN116231415A CN116231415A CN202310248466.2A CN202310248466A CN116231415A CN 116231415 A CN116231415 A CN 116231415A CN 202310248466 A CN202310248466 A CN 202310248466A CN 116231415 A CN116231415 A CN 116231415A
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- busbar
- copper
- composite
- copper busbar
- resin
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
- H01R25/16—Rails or bus-bars provided with a plurality of discrete connecting locations for counterparts
- H01R25/161—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
- H01R25/16—Rails or bus-bars provided with a plurality of discrete connecting locations for counterparts
- H01R25/164—Connecting locations formed by flush mounted apparatus
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0056—Manufacturing winding connections
- H02K15/0062—Manufacturing the terminal arrangement per se; Connecting the terminals to an external circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
-
- 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
Abstract
The invention discloses a manufacturing method of a composite busbar of a driving motor, which comprises the following steps of S1, dividing at least two circular copper busbar with openings into two copper busbar segments and an input terminal; s2, correspondingly fixing at least two input terminals and the segmented copper bar segments on a welding tool, and welding the input terminals and the corresponding two copper bar segments into an annular copper busbar with an opening, wherein at least two copper busbars are arranged at intervals from inside to outside to form a composite copper bar assembly; and S3, pressing the resin piece with at least two circles of slots downwards on the composite copper bar assembly positioned on the welding tool, and enabling at least two copper bus bars to be embedded into the corresponding slots of the resin piece until the copper bus bars are embedded into the slots to form the composite bus bars. Can reduce the punching press processing degree of difficulty through cutting apart copper busbar, can imbed the resin spare simultaneously when making two at least copper busbar, even the mutual interference also can realize embedding fast when guaranteeing copper busbar embedding resin spare, has effectively improved work efficiency.
Description
Technical Field
The invention relates to the technical field of automobile spare and accessory parts, in particular to a composite busbar of a driving motor and a manufacturing method thereof.
Background
In recent years, the market of new energy automobiles is started to grow at a high speed, and along with the application of various new technologies, the performance requirements on the driving motor of the new energy automobile are higher and higher, and the composite busbar has the advantages of compact structure, low impedance, interference resistance and good reliability, and has stronger advantages in both the electrical and mechanical properties of the automobile, so that the composite busbar is widely applied and becomes an indispensable component in the driving motor.
At present, according to the technological distinction, two main types of driving motor compound busbar (usually in a circular shape) are: one is an insert injection molding process and the other is an assembly process. The two processes have technical difficulties, namely, the embedded injection molding process is to perform one-time injection molding on the multi-layer copper busbar, the process has high requirement on the outline dimension precision of the copper busbar, the copper busbar is easy to displace when being impacted by resin during injection molding due to limited fixed positions of the copper busbar in an injection mold, the shrinkage rates of the copper busbar and the resin are inconsistent, the whole product is easy to warp and deform after cooling, a resin part is easy to crack during a cold and hot impact experiment, and the insulation and pressure resistance of the product are seriously affected to finally fail; the assembly process is to firstly injection mold the resin part with the groove structure, then to embed the copper busbar into the groove layer by layer, so that the creepage distance between the copper busbars can be ensured, the problem of cracking of the resin part during cold and hot impact is solved, but the copper busbars of each layer are required to be unable to interfere with each other during embedding, so that the copper busbar embedding speed is slower, and the working efficiency is lower.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is that the copper busbar in the prior art cannot be quickly embedded into the grease component in the scheme of the tree me, so that the defects of low embedding speed and low working efficiency of the copper busbar are overcome, and the composite busbar of the driving motor and the manufacturing method thereof are provided.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a manufacturing method of a composite busbar of a driving motor comprises the following steps:
s1, at least two circular copper busbar with openings are divided into two sections of copper busbar segments and an input terminal;
s2, correspondingly fixing at least two input terminals and the copper bar segments segmented in the step S2 on a welding tool, and welding at least two input terminals and the corresponding two copper bar segments into an annular copper busbar with openings, wherein the at least two annular copper busbars with openings are arranged at intervals from inside to outside to form a composite copper bar assembly;
and S3, pressing the resin piece with at least two circles of slots downwards on the composite copper bar assembly positioned on the welding tool, and enabling at least two annular copper bars with openings to be embedded into the slots corresponding to the resin piece until the annular copper bars are embedded into the slots to form the composite copper bars.
Further, after the step S3, the method further includes:
s4, discharging downward pressure on the resin part, and ejecting the composite busbar upwards under the action of an ejection mechanism on the welding tool.
Further, in the step S1, the connection position of the copper busbar (1) is located at the connection position of the input terminal (5) connected thereto.
Further, in the step S2, the two segmented copper bar segments are sequentially placed on a welding tool according to the position sequence, one ends of the two copper bar segments of the same circle are close together, then the input terminals are placed on a terminal positioning insert on the welding tool, at the moment, the butt joint positions of the at least two circles of copper bar segments are in one-to-one correspondence with the corresponding input terminals, and then the at least two circles of copper bar segments and the corresponding input terminals are welded together in one-to-one correspondence by using laser, so that three circular copper busbar shapes are formed.
Further, in the step S2, a positioning component adapted to position the copper busbar is provided on the welding tool, and the segmented copper bar segments are all fixed on the welding tool through the positioning component.
Further, in the step S2, the positioning assembly includes a plurality of elastic positioning pins, the plurality of elastic positioning pins according to the scheme are distributed in a circular ring shape on the welding tool, and a plurality of circular rings formed by the elastic positioning pins are correspondingly arranged with the outer ring of the copper busbar.
Further, at least two guide seats with guide holes are arranged on the periphery of the resin part in a protruding mode in the circumferential direction, at least two guide pins are arranged on the welding tool, and the guide holes of the at least two guide seats are arranged in one-to-one correspondence with the at least two guide pins so as to provide guiding in the pressing process of the resin part.
Further, in the step S3, the resin member is pressed down and brought into contact with the elastic positioning pin, which is compressed when contacting the resin member; in the step S4, the downward pressure of the resin piece is removed, and a plurality of elastic positioning pins are used as the ejection mechanism to drive the whole composite busbar embedded by at least two copper busbars and the resin piece to be ejected upwards under the action of self elastic force.
The utility model provides a compound busbar of driving motor, includes the resin spare that has two at least circles slot and inserts and establish at least two circles that correspond in the slot have open-ended ring form copper busbar, copper busbar includes a plurality of output confluence connecting portion, and is a plurality of output confluence connecting portion's end all is provided with the orientation the output terminal that the ring form copper busbar inner circle set up, a plurality of output confluence connecting portion are in be the step form on the copper busbar and set gradually.
The technical scheme of the invention has the following advantages:
1. according to the manufacturing method of the composite busbar of the driving motor, at least two copper busbar sections and one input terminal are divided into two sections of copper busbar sections, so that the stamping processing difficulty is reduced; correspondingly placing at least two input terminals and the segmented copper bar segments on a welding tool and limiting and fixing the copper bar segments, so that displacement of the copper bar is avoided during subsequent embedding operation; the three copper busbar and the three input terminals are welded into three circular copper busbar 1 with openings 4 in a one-to-one correspondence manner, and then the resin piece is fixed on a welding tool, so that the displacement of the resin piece in the stamping and embedding process can be avoided, a new embedding and assembling tool is not needed to be replaced, and the processing procedures and time can be reduced; simultaneously, the resin piece is correspondingly pressed on the circular copper busbar 1 with the opening 4, so that the resin piece corresponds to the positions where the three circular copper busbars 1 with the opening 4 are required to be embedded; after the positioning of the resin part and the three circular copper busbar 1 with the opening 4 is finished, applying pressure to the resin part, namely, three copper busbars of the three circular copper busbar 1 with the opening 4 are embedded into the resin part, after the three copper busbars are embedded in place, the pressure is canceled, and the three circular copper busbar 1 with the opening 4 is taken down, so that the embedding speed of the copper busbar during processing is effectively ensured, the working efficiency is improved, and the copper busbar is ensured to be embedded in the scheme number of the resin part
Even if the two mutually interfere, the rapid embedding can be realized.
2. According to the manufacturing method of the composite busbar of the driving motor, the connection position of the copper busbar is positioned at the connection position of the input terminal and the copper busbar, so that the separated copper busbar can be synchronously welded while the input terminal and the copper busbar are welded later, a plurality of copper busbars can interfere with each other when being embedded into the same resin piece, and the embedding speed can be ensured.
3. According to the manufacturing method of the composite busbar of the driving motor, the positioning assembly comprises the plurality of elastic positioning pins, the plurality of elastic positioning pins are distributed in the shape of a circular ring on the welding tool, the circular ring formed by the plurality of elastic positioning pins is arranged corresponding to the outer ring of the copper busbar, and the copper busbar can be limited and fixed through the elastic positioning pins, so that the stability of the copper busbar when being positioned on the welding tool is ensured, and the stability of the copper busbar when being embedded in a subsequent stamping mode is ensured.
4. According to the manufacturing method of the driving motor composite busbar, provided by the invention, at least two guide seats with the guide holes are arranged on the periphery of the resin part in a protruding way outwards, at least two guide pins are arranged on the welding tool, and the guide holes of the at least two guide seats are arranged in one-to-one correspondence with the at least two guide pins so as to provide the guide for the pressing process of the resin part. So set up, can cooperate the guide holder through the guide pin in order to lead the resin spare when the punching press, can guarantee the stability of the resin spare when follow-up punching press embedding copper busbar simultaneously, avoid the resin spare to receive the pressure and produce and rock or displacement.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a perspective structure diagram of a copper busbar provided in an embodiment of the present invention;
FIG. 2 is a perspective view showing the structure of the copper busbar and the resin insert molding in the step S1 of the present invention;
fig. 3 is a perspective view of the structure of the copper busbar before being split in step S2 of the present invention;
fig. 4 is a perspective view of the copper busbar after being divided in step S2 of the present invention;
i plan number
FIG. 5 is a perspective view of the copper busbar and the input terminal after the soldering and dividing in the step S3;
fig. 6 is a perspective view showing a structure of the copper busbar embedded resin in step S3 of the present invention.
Reference numerals illustrate: 1. copper busbar; 2. an output bus connection portion; 3. an output terminal; 4. an opening; 5. an input terminal; 6. a resin member; 7. a guide seat; 8. welding a tool; 9. a guide pin; 10. an elastic positioning pin; 11. and (3) positioning the insert by the terminal.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
A manufacturing method of a composite busbar of a driving motor comprises the following steps:
s1, as shown in figures 3-4, dividing three circular copper busbar 1 with openings 4 into two sections of copper I scheme numbers
A row segment and an input terminal 5;
s2, as shown in FIG. 2, correspondingly fixing the three input terminals 5 and the copper bar segments segmented in the step S2 on a welding tool 8, and welding the three input terminals 5 and the corresponding two sections of copper bar segments into a circular copper busbar 1 with an opening 4, wherein the three circular copper busbar 1 with the opening 4 are arranged at intervals from inside to outside to form a composite copper bar assembly;
and S3, as shown in fig. 5-6, pressing down the resin piece 6 with three circles of slots on the composite copper bar assembly positioned on the welding tool 8, and enabling the three annular copper bars 1 with the openings 4 to be embedded into the corresponding slots of the resin piece 6 until the annular copper bars 1 are embedded into positions to form the composite copper bars.
According to the manufacturing method of the composite busbar of the driving motor, three copper busbar 1 are divided into three parts (namely two sections of copper busbar segments and one input terminal 5) so as to reduce the stamping processing difficulty; then, correspondingly placing the three input terminals 5 and the three segmented copper busbar 1 on a welding tool 8 for limiting, so as to avoid displacement of the copper busbar 1 during subsequent embedding operation; the three copper busbar 1 and the three input terminals 5 are welded into three circular copper busbar 1 with openings 4 in a one-to-one correspondence mode, the resin piece 6 is arranged on the welding tool 8, and a new embedded assembly tool is not needed to be replaced, so that the processing procedure and the processing time can be reduced; simultaneously, the resin piece 6 is correspondingly pressed on the circular copper busbar 1 with the opening 4, and the resin piece 6 corresponds to the positions where the three circular copper busbars 1 with the opening 4 are required to be embedded; after the positioning of the resin piece 6 and the three circular copper busbar 1 with the opening 4 is finished, pressure is applied to the resin piece 6, so that the three copper busbar 1 with the circular copper busbar 1 with the opening 4 are embedded into the resin piece 6, after the three copper busbar 1 is embedded in place, the pressure is canceled, the three circular copper busbar 1 with the opening 4 is taken down, the embedding speed of the copper busbar 1 during processing is effectively ensured, the working efficiency is improved, and the copper busbar 1 can be embedded rapidly even if mutually interfered when being embedded into the resin piece 6.
After the step S3, the method further includes:
s4, discharging downward pressure on the resin part 6, and ejecting the composite busbar upwards under the action of an ejection mechanism on the welding tool 8.
In the step S3, the three divided copper busbar 1 are sequentially placed on a welding tool 8 according to the position sequence, two connection points of the same copper busbar 1 are close together, three input terminals 5 are placed on a terminal positioning insert 11 on the welding tool 8, at the moment, the connection positions of the three copper busbar 1 are arranged in one-to-one correspondence with the three input terminals 5, and then the three copper busbar 1 and the three input terminals 5 are welded together in one-to-one correspondence by using laser, so that three circular copper busbar 1 with openings 4 are welded; by the arrangement, the separated copper busbar 1 can be synchronously welded while the input terminal 5 and the copper busbar 1 are welded later, so that a plurality of copper busbars 1 can interfere with each other when being embedded into a plurality of slots on the same resin piece 6, and the embedding speed can be ensured; meanwhile, the input terminal 5 can be limited through the terminal positioning insert 11, so that displacement of the input terminal 5 during welding and stamping is avoided. Specifically, the surface of the copper busbar 1 provided with the step-shaped output bus connection part 2 is placed towards the welding tool 8.
In this embodiment, a positioning component suitable for positioning the copper busbar 1 is arranged on the welding tool 8, and three divided copper busbars 1 are all fixed on the welding tool 8 through the positioning component. Specifically, the ejection mechanism is arranged between the positioning.
Specifically, locating component includes a plurality of elastic locating pins 10, and a plurality of elastic locating pins 10 are the ring form and distribute on welding frock 8, and correspond the setting with copper busbar 1 outer lane, so set up, can carry out spacing fixed to copper busbar 1 through a plurality of elastic locating pins 10, avoid copper busbar 1 to take place the displacement and rock on welding frock 8 to guarantee the stability of copper busbar 1 when being located welding frock 8, thereby guarantee the stability when follow-up punching press is inlayed.
In this embodiment, three guide holders 7 with guide holes are provided to protrude outwards in the circumferential direction of the outer periphery of the resin member 6, three guide pins 9 are provided to the welding fixture 8, and the guide holes of the three guide holders 7 are provided in one-to-one correspondence with the three guide pins 9 to provide guidance in the pressing process of the resin member 6. So set up, can cooperate guide holder 7 in order to lead resin spare 6 when the punching press through guide pin 9, can guarantee the stability of resin spare 6 when the embedding copper busbar 1 of follow-up punching press simultaneously, avoid resin spare 6 to receive the pressure and produce and rock or displacement. .
In step S4, the resin member 6 is pressed down and contacted with the elastic positioning pin 10, the elastic positioning pin 10 is synchronously pressed down when contacting with the resin member 6, downward pressure is generated until the three copper busbar 1 are embedded into the resin member 6, after the three copper busbar 1 are embedded into place, the downward pressure of the resin member 6 is removed, and then the elastic positioning pin 10 is reset to push out the whole resin member 6 embedded with the copper busbar 1 upwards, so that the manufacturing of the composite busbar of the driving motor is completed.
I plan number
The utility model provides a compound busbar of driving motor, as shown in fig. 1, including resin spare 6 that has the round slot and insert and establish corresponding the round ring form copper busbar 1 that has opening 4 in the slot, copper busbar 1 includes a plurality of output confluence connecting portion 2, and a plurality of output confluence connecting portion 2's end all is provided with the orientation the output terminal 3 that ring form copper busbar 1 inner circle set up, a plurality of output confluence connecting portion 2 are in the step form sets gradually on the copper busbar 1.
In summary, in the manufacturing method of the composite busbar of the driving motor, the three copper busbar 1 is divided into three parts (namely two copper busbar segments and one input terminal 5) so as to reduce the stamping difficulty; then, correspondingly placing the three input terminals 5 and the three segmented copper busbar 1 on a welding tool 8 for limiting, so as to avoid displacement of the copper busbar 1 during subsequent embedding operation; the three copper busbar 1 and the three input terminals 5 are welded into three circular copper busbar 1 with openings 4 in a one-to-one correspondence mode, the resin piece 6 is arranged on the welding tool 8, and a new embedded assembly tool is not needed to be replaced, so that the processing procedure and the processing time can be reduced; simultaneously, the resin piece 6 is correspondingly pressed on the circular copper busbar 1 with the opening 4, and the resin piece 6 corresponds to the positions where the three circular copper busbars 1 with the opening 4 are required to be embedded; after the positioning of the resin piece 6 and the three circular copper busbar 1 with the opening 4 is finished, pressure is applied to the resin piece 6, so that the three copper busbar 1 with the circular copper busbar 1 with the opening 4 are embedded into the resin piece 6, after the three copper busbar 1 is embedded in place, the pressure is canceled, the three circular copper busbar 1 with the opening 4 is taken down, the embedding speed of the copper busbar 1 during processing is effectively ensured, the working efficiency is improved, and the copper busbar 1 can be embedded rapidly even if mutually interfered when being embedded into the resin piece 6.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (9)
1. The manufacturing method of the composite busbar of the driving motor is characterized by comprising the following steps of:
s1, equally dividing at least two circular copper busbar (1) with openings (4) into two sections of copper busbar segments and an input terminal (5);
s2, correspondingly fixing at least two input terminals (5) and the copper bar segments segmented in the step S2 on a welding tool (8), welding the at least two input terminals (5) and the corresponding two sections of copper bar segments into a circular copper busbar (1) with an opening (4), and arranging the at least two circular copper busbars (1) with the opening (4) at intervals from inside to outside to form a composite copper bar assembly;
s3, pressing the resin piece (6) with at least two circles of slots downwards on the composite copper bar assembly positioned on the welding tool (8), and enabling at least two annular copper busbar (1) with the opening (4) to be embedded into the corresponding slots of the resin piece (6) until the annular copper busbar (1) is embedded into the position to form the composite busbar.
2. The method for manufacturing a composite busbar for a drive motor according to claim 1, further comprising, after the step S3:
s4, discharging downward pressure on the resin part (6), and ejecting the composite busbar upwards under the action of an ejection mechanism on the welding tool (8).
3. The method for manufacturing the composite busbar of the driving motor according to claim 1, wherein in the step S1, the connection position of the copper busbar (1) is located at the connection position of the input terminal (5) connected thereto.
4. The method for manufacturing the composite busbar of the driving motor according to claim 2, wherein in the step S2, the two segmented copper bar segments are sequentially placed on a welding tool (8) according to the position sequence, one ends of the two copper bar segments of the same circle are close together, then the input terminals (5) are placed on a terminal positioning insert (11) on the welding tool (8), at the moment, the butt joint positions of the at least two circles of copper bar segments are in one-to-one correspondence with the corresponding input terminals (5), and the at least two circles of copper bar segments and the corresponding input terminals (5) are welded together in one-to-one correspondence by using laser, so that the three circular copper busbar (1) is welded.
5. The method for manufacturing the composite busbar of the driving motor according to claim 4, wherein in the step S2, a positioning group me scheme number suitable for positioning the copper busbar (1) is arranged on the welding tool (8)
The segmented copper bar segments are fixed on the welding tool (8) through the positioning assembly.
6. The method for manufacturing the composite busbar of the driving motor according to claim 5, wherein in the step S2, the positioning assembly comprises a plurality of elastic positioning pins (10), the plurality of elastic positioning pins (10) are distributed in a circular shape on the welding fixture (8), and a circular ring formed by the plurality of elastic positioning pins (10) is arranged corresponding to the outer ring of the copper busbar (1).
7. The manufacturing method of the driving motor composite busbar according to claim 1, wherein at least two guide seats (7) with guide holes are arranged on the periphery of the resin piece (6) in a protruding mode in the circumferential direction, at least two guide pins (9) are arranged on the welding tool (8), and the guide holes of the at least two guide seats (7) are arranged in a one-to-one correspondence with the at least two guide pins (9) so as to provide guiding in the pressing process of the resin piece (6).
8. The method of manufacturing a composite busbar for a drive motor according to claim 6, wherein in the step S3, the resin member (6) is pressed down and brought into contact with the elastic positioning pin (10), and the elastic positioning pin (10) is compressed when contacting the resin member (6); in the step S4, the downward pressure of the resin piece (6) is removed, and a plurality of elastic positioning pins (10) are used as the ejection mechanism to drive the whole composite busbar embedded by at least two copper busbars (1) and the resin piece (6) to be ejected upwards under the action of self elastic force.
9. The utility model provides a compound busbar of driving motor, its characterized in that, including resin spare (6) that have two at least circles slot and insert establish at least two circles in corresponding the slot have ring form copper busbar (1) of opening (4), copper busbar (1) are including a plurality of output confluence connecting portion (2), and is a plurality of the end of output confluence connecting portion (2) all is provided with the orientation output terminal (3) that ring form copper busbar (1) inner circle set up, a plurality of output confluence connecting portion (2) are the step form and set gradually on copper busbar (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310248466.2A CN116231415A (en) | 2023-03-08 | 2023-03-08 | Composite busbar of driving motor and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310248466.2A CN116231415A (en) | 2023-03-08 | 2023-03-08 | Composite busbar of driving motor and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116231415A true CN116231415A (en) | 2023-06-06 |
Family
ID=86591035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310248466.2A Pending CN116231415A (en) | 2023-03-08 | 2023-03-08 | Composite busbar of driving motor and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116231415A (en) |
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2023
- 2023-03-08 CN CN202310248466.2A patent/CN116231415A/en active Pending
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