CN114843813A - Three-phase copper bar structure of hybrid power motor - Google Patents

Three-phase copper bar structure of hybrid power motor Download PDF

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Publication number
CN114843813A
CN114843813A CN202210610078.XA CN202210610078A CN114843813A CN 114843813 A CN114843813 A CN 114843813A CN 202210610078 A CN202210610078 A CN 202210610078A CN 114843813 A CN114843813 A CN 114843813A
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CN
China
Prior art keywords
copper bar
hard
groove
holes
soft
Prior art date
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Pending
Application number
CN202210610078.XA
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Chinese (zh)
Inventor
梁刘才
冯波
张韬
黎月华
柯君
周尧宏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Tsingshan Industrial Co Ltd
Original Assignee
Chongqing Tsingshan Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chongqing Tsingshan Industrial Co Ltd filed Critical Chongqing Tsingshan Industrial Co Ltd
Priority to CN202210610078.XA priority Critical patent/CN114843813A/en
Publication of CN114843813A publication Critical patent/CN114843813A/en
Pending legal-status Critical Current

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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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/521—Sealing between contact members and housing, e.g. sealing insert
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5216—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/02—Soldered or welded connections
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
    • H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
    • 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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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

The invention relates to a three-phase copper bar structure of a hybrid power motor, which comprises a copper bar assembly, wherein the copper bar assembly is formed by respectively welding and arranging three soft copper bars and three hard copper bars, connecting holes are formed in the extending ends of the soft copper bars, blocking blocks are arranged on the extending ends of the hard copper bars, threaded inserts are arranged at the front ends of the extending ends of the hard copper bars in a riveting mode, inwards-recessed blind holes are formed in the threaded inserts, an insulating shell is formed by injection molding of the copper bar assembly welded between the blocking blocks, assembling grooves for installing the hard copper bars are formed in the insulating shell, assembling holes are formed in the assembling grooves, the threaded inserts on the hard copper bars are embedded into the assembling holes, epoxy resin is filled in gaps between the assembling grooves and the hard copper bars, a plurality of embedding holes are formed in the insulating shell, and embedding nests are arranged in the embedding holes. The motor copper bar insulation device is compact in structure, easy to assemble, good in protection and insulation effects on the motor copper bar, and beneficial to batch and automatic production of the motor.

Description

Three-phase copper bar structure of hybrid power motor
Technical Field
The invention relates to the technical field of hybrid power motors, in particular to a three-phase copper bar structure of a hybrid power motor.
Background
The three-phase copper bar of the motor is used as a key electrical component of a new energy automobile power system, and the three-phase copper bar of the motor is mainly used for communicating a three-phase line of the stator with an external high-voltage line, transmitting output current and voltage and preventing electromagnetic interference. In the working process of the motor, the transmission of the power of the motor directly influences the power of the whole vehicle, so that the connection between the motor and the three-phase copper bar is required to meet the requirements of reliable mechanical connection, reliable temperature rise, air tightness, reliability and the like.
At present traditional motor three-phase copper bar is for dividing the piece, because motor vibration causes easily that it is not hard up to appear between each part of three-phase copper bar, produces the noise, influences the normal work of three-phase copper bar.
Disclosure of Invention
The invention aims to provide a three-phase copper bar structure of a hybrid power motor, which is more stable and safer and does not need to be specially assembled with the motor, aiming at the corresponding defects of the prior art.
The purpose of the invention is realized by adopting the following scheme: the utility model provides a hybrid motor three-phase copper bar structure, includes: a copper bar component which is formed by respectively welding and arranging three soft copper bars and three hard copper bars, the extending end of the soft copper bar is provided with a connecting hole, the extending end of the hard copper bar is provided with a blocking block, the front end of the extending end of the hard copper bar is riveted with a threaded insert, the threaded insert is provided with blind holes which are sunken inwards, the part of the copper bar assembly welded between the blocking blocks is injection-molded to form an insulating shell, the insulation shell is provided with a copper bar groove, the soft copper bar and the hard copper bar are welded and fixed at the groove opening of the copper bar groove, the insulating shell is provided with an assembly groove for mounting the hard copper bar, the assembly groove is provided with an assembly hole, the threaded insert on the hard copper bar is embedded into the assembly hole, epoxy resin is filled in a gap between the assembly groove and the hard copper bar, a plurality of embedding holes are formed in the insulating shell, and embedding is formed in the embedding holes.
Furthermore, the soft copper bar and the hard copper bar are fixedly connected through silver-copper brazing, the soft copper bar is formed by punching a plurality of copper sheets, and a connecting hole in the soft copper bar is a circular hole, a waist-shaped hole, a U-shaped hole or a square hole.
Further, the soft copper bar can be relative copper bar thickness direction 0~90 of buckling, relative copper bar width direction 0~5 of buckling.
Further, the bending angle of the hard copper bar is 0-180 degrees.
Furthermore, one end of the insulating shell assembling groove is provided with a sealing ring installing groove, and a sealing ring is arranged in the sealing ring installing groove.
Furthermore, the insulating shell is provided with a heat dissipation groove and an oil guide groove.
Adopt above-mentioned technical scheme: the method comprises the following steps: copper bar subassembly, the copper bar subassembly comprises three soft copper bar respectively with three hard copper bar welding arrangement, the extension end of soft copper bar sets up the connecting hole, hard copper bar extends to serve and sets up and blocks the piece, the front end riveting of hard copper bar extension end sets up the screw thread inserts, set up inside sunken blind hole on the screw thread inserts, copper bar subassembly welding is in and blocks injection moulding insulating housing on the part between the piece, the last assembly groove that supplies the installation of hard copper bar that sets up of insulating housing, be equipped with the pilot hole on the assembly groove, the screw thread inserts embedding on the hard copper bar is in the pilot hole, epoxy is filled in the space between assembly groove and the hard copper bar, set up a plurality of nested holes on the insulating housing, set up the nestification in the nested hole. Whole copper bar subassembly passes through the mould and moulds plastics in the insulating casing, make whole copper bar subassembly and insulating casing form a complete whole, the reliability is improved, the NVH problem of components of a whole that can function independently three-phase copper bar has been solved, block the piece and the setting of embedment epoxy has formed the effect of double sealing, form sealedly to whole three-phase copper bar structure, it can lead to the three-phase copper bar to be in the thermal balance state because can produce inside cooling oil temperature and continuous transmission heavy current among the long-time working process of motor to make it avoid, because metal and plastics thermal change coefficient are different, will produce the gap between metal and the plastics, and the airtight or the condition of oil leak that cause take place.
Soft copper bar and hard copper bar connect fixedly through silver-copper brazing, soft copper bar is by multi-disc copper sheet stamping forming, connecting hole on the soft copper bar is circular port, waist shape hole, U shape hole or quad slit, and silver-copper brazing connects vibration and the impact that can alleviate the motor and cause the copper bar subassembly in the course of the work, and the setting of connecting hole different shapes can satisfy being connected of different kind electric energy transmission's wire and copper bar subassembly.
The soft copper bar can be bent by 0-90 degrees relative to the thickness direction of the copper bar and bent by 0-5 degrees relative to the width direction of the copper bar; the bending angle of the hard copper bar is 0-180 degrees. Different bending angles can meet the requirements of assembling planes and angles with different heights.
One end of the insulating shell assembling groove is provided with a sealing ring installing groove, a sealing ring is arranged in the sealing ring installing groove, the sealing ring forms further sealing on the insulating shell, and the air tightness of the insulating shell is improved.
Be equipped with the radiating groove on the insulating casing, lead the oil groove, the radiating groove can make the temperature of copper bar subassembly reduce fast, leads the oil groove and is used for the interior oily flow of motor box.
Compared with the prior art, the invention has the following beneficial effects:
the motor copper bar assembly has compact structure, is easy to assemble, adopts new design, new process and new structure, meets the requirements of protection and insulation protection of the motor copper bar assembly, has lower cost, and is beneficial to the mass and automatic production of the motor; and can satisfy the motor and produce high temperature and continuously transmit heavy current in long-time working process, can bear high low temperature impact for a long time, can not lead to influencing assembly airtight or oil leak because metal and plastics thermal coefficient of variation are different, have guaranteed product reliability.
Drawings
FIG. 1 is a schematic structural diagram of a three-phase copper bar according to the present invention;
FIG. 2 is a schematic structural view of the copper bar assembly of the present invention;
FIG. 3 is a schematic view of the structure of the insulating housing of the present invention;
fig. 4 is a structural schematic view of the insulating housing according to another aspect of the present invention.
Detailed Description
As shown in fig. 1 to 4, a three-phase copper bar structure of a hybrid power motor includes: copper bar subassembly 1, copper bar subassembly 1 comprises three soft copper bar 11 respectively with three 12 welding arrangements of hard copper bar, the end that extends of soft copper bar 11 sets up connecting hole 111, hard copper bar 12 extends to serve and sets up and blocks block 13, the front end riveting that hard copper bar 12 extends the end sets up the squeeze riveting hole, and squeeze riveting screw thread inserts 2 in the squeeze riveting hole through the squeeze riveting machine, set up the inside sunken internal screw thread blind hole that has on the screw thread inserts 2, avoid 4 melts of insulating housing to block up the screw thread, this blind hole is made according to the effective thread length of fixing bolt. 1 splice 3 of copper bar subassembly is injection moulding an insulating housing 4 on blocking the part between the piece 13, set up copper bar groove 14 on the insulating housing 4, soft copper bar 11 and hard copper bar 12 are at copper bar groove 14 notch department welded fastening, set up the assembly groove 41 that supplies the installation of hard copper bar 12 on the insulating housing 4, be equipped with pilot hole 42 on the assembly groove 41, the threaded insert 2 on the hard copper bar 12 imbeds in pilot hole 42, epoxy 43 is filled in the space between assembly groove 41 and the hard copper bar 12, set up a plurality of nested holes 44 on the insulating housing 4, the nested hole 44 of this embodiment sets up to five, set up nestedly 45 in the nested hole 44. One end of the assembling groove 41 of the insulating shell 4 is provided with a sealing ring 6 installing groove 5, and a sealing ring 6 is arranged in the sealing ring 6 installing groove 5. And the insulating shell 4 is provided with a heat dissipation groove 7 and an oil guide groove.
The soft copper bar 11 of this embodiment is fixed through silver-copper brazing with hard copper bar 12, and soft copper bar 11 remains 0.3mm ~0.5 mm's welding seam with hard copper bar 12 welding department 3 for fill silver-copper brazing solder, soft copper bar 11 adopts polymer diffusion to weld and carries out the preparation of copper bar layering stamping forming in the middle of hardening both ends by multi-disc copper sheet or foil, connecting hole 111 on the soft copper bar 11 is circular port, waist shape hole, U shape hole or quad slit, and the connecting hole 111 of this embodiment is the circular port. The soft copper bar 11 can be relative copper bar thickness direction 0~90 of buckling, relative copper bar width direction 0~5 of buckling. The bending angle of the hard copper bar 12 is 0-180 degrees.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and modifications of the present invention by those skilled in the art are within the scope of the present invention without departing from the spirit of the present invention.

Claims (6)

1. The utility model provides a hybrid motor three-phase copper bar structure which characterized in that includes: the copper bar component is formed by respectively welding and arranging three soft copper bars and three hard copper bars, the extending end of the soft copper bar is provided with a connecting hole, the extending end of the hard copper bar is provided with a blocking block, the front end of the extending end of the hard copper bar is riveted with a threaded insert, the threaded insert is provided with blind holes which are sunken inwards, the part of the copper bar assembly welded between the blocking blocks is injection-molded to form an insulating shell, the insulation shell is provided with a copper bar groove, the soft copper bar and the hard copper bar are welded and fixed at the groove opening of the copper bar groove, the insulating shell is provided with an assembly groove for mounting the hard copper bar, the assembly groove is provided with an assembly hole, the threaded insert on the hard copper bar is embedded into the assembly hole, epoxy resin is filled in a gap between the assembly groove and the hard copper bar, a plurality of embedding holes are formed in the insulating shell, and embedding is formed in the embedding holes.
2. The hybrid power motor three-phase copper bar structure according to claim 1, wherein: the soft copper bar and the hard copper bar are fixedly soldered through silver copper, the soft copper bar is formed by punching a plurality of copper sheets, and the connecting holes in the soft copper bar are circular holes, waist-shaped holes, U-shaped holes or square holes.
3. The hybrid power motor three-phase copper bar structure according to claim 1, wherein: the soft copper bar can be relative copper bar thickness direction 0~90 of buckling, relative copper bar width direction 0~5 of buckling.
4. The hybrid power motor three-phase copper bar structure according to claim 1, wherein: the bending angle of the hard copper bar is 0-180 degrees.
5. The hybrid power motor three-phase copper bar structure according to claim 1, wherein: one end of the insulating shell assembling groove is provided with a sealing ring installing groove, and a sealing ring is arranged in the sealing ring installing groove.
6. The hybrid power motor three-phase copper bar structure according to claim 1, wherein: and the insulating shell is provided with a heat dissipation groove and an oil guide groove.
CN202210610078.XA 2022-05-31 2022-05-31 Three-phase copper bar structure of hybrid power motor Pending CN114843813A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210610078.XA CN114843813A (en) 2022-05-31 2022-05-31 Three-phase copper bar structure of hybrid power motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210610078.XA CN114843813A (en) 2022-05-31 2022-05-31 Three-phase copper bar structure of hybrid power motor

Publications (1)

Publication Number Publication Date
CN114843813A true CN114843813A (en) 2022-08-02

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Application Number Title Priority Date Filing Date
CN202210610078.XA Pending CN114843813A (en) 2022-05-31 2022-05-31 Three-phase copper bar structure of hybrid power motor

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116979324A (en) * 2023-08-01 2023-10-31 深圳市宇盛光电有限公司 Copper bar circuit assembly
CN117276986A (en) * 2023-11-14 2023-12-22 广东亿万精密工业有限公司 Soft and hard combined type electric control copper bar assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116979324A (en) * 2023-08-01 2023-10-31 深圳市宇盛光电有限公司 Copper bar circuit assembly
CN116979324B (en) * 2023-08-01 2024-05-17 深圳市宇盛光电有限公司 Copper bar circuit assembly
CN117276986A (en) * 2023-11-14 2023-12-22 广东亿万精密工业有限公司 Soft and hard combined type electric control copper bar assembly
CN117276986B (en) * 2023-11-14 2024-03-15 广东亿万精密工业有限公司 Soft and hard combined type electric control copper bar assembly

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