CN210652542U

CN210652542U - Integrated connection structure of three-phase and positive and negative lines of electric drive axle

Info

Publication number: CN210652542U
Application number: CN201921643414.0U
Authority: CN
Inventors: 王晓春; 孙振宇; 程小勇; 高志川
Original assignee: ZHEJIANG FOUNDER MOTOR CO Ltd
Current assignee: ZHEJIANG FOUNDER MOTOR CO Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-06-02
Anticipated expiration: 2029-09-29

Abstract

The utility model relates to an integrated connection structure of three-phase and positive and negative line of electric drive axle, including controller subassembly, motor element, power cord, positive and negative fixing base, three-phase fixing base, positive and negative copper bar and three-phase copper bar, the power cord inserts respectively in the positive and negative fixing base with positive and negative copper bar to through screw fastening connection, motor element includes the stator, is equipped with the motor three-phase line on the stator, is equipped with three-phase line copper nose on the motor three-phase line, and three-phase line copper nose inserts respectively with the three-phase copper bar in the three-phase fixing base, and through screw fastening connection, positive and negative copper bar and three-phase copper bar are connected with. The utility model is simple in operation, integrated density is high, and integrative voltinism is strong, has guaranteed EMC, waterproof nature's requirement.

Description

Integrated connection structure of three-phase and positive and negative lines of electric drive axle

Technical Field

The utility model relates to a new energy automobile drive assembly especially relates to an integrated connection structure of three-phase and positive and negative line of electric drive axle.

Background

The driving system of the new energy automobile generally consists of an electric drive axle consisting of a motor, a speed reducer, a PEU and the like. The motor converts the electric energy into mechanical energy to provide power for the vehicle, the rotating speed of the motor is reduced through the speed reducer, and meanwhile, the output torque of the motor is amplified, so that the effects of speed reduction and torque increase are achieved, and the vehicle can run in a certain rotating speed range and under a certain driving force.

At present, a new energy automobile driving electric bridge comprises a motor, a speed reducer, a controller and the like, three key components are overlapped and installed to cause large space, the whole automobile arrangement difficulty is increased, three suppliers (at least 2 suppliers) of the three components are difficult to coordinate in work, multiple interfaces appear, the installation error is large, and extra cost is increased. Especially in the aspect of the connection structure of three-phase line, need to solve the problem of connection reliability, EMC problem, waterproof etc. and on the one hand will realize high integration, on the other hand will guarantee installation space again.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a three-phase of electric drive axle and the integrated connection structure of plus-minus line, this structure easy operation, integrated density are high, and integrative voltinism is strong, has guaranteed EMC, waterproof nature's requirement.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an integrated connection structure of three-phase and positive and negative line of electric drive axle, includes controller subassembly, motor element, power cord, positive and negative fixing base, three-phase fixing base, positive and negative copper bar and three-phase copper bar, the power cord inserts respectively in the positive and negative fixing base with positive and negative copper bar to through screw fastening connection, motor element includes the stator, is equipped with the motor three-phase line on the stator, is equipped with three-phase line copper nose on the motor three-phase line, and three-phase line copper nose inserts respectively with the three-phase copper bar in the three-phase fixing base, and through screw fastening connection, positive and negative copper bar and three-phase copper bar.

As preferred scheme, the one end of two power cords inserts respectively in the bottom through-hole that two intervals of positive negative fixing base set up, and positive negative fixing base is inserted through the first guide slot that two intervals on positive negative fixing base upper portion set up respectively to two positive negative copper bars, and bottom through-hole and first guide slot intercommunication, and one side of positive negative fixing base is equipped with the mounting hole, and the screw stretches into the mounting hole and fastens power cord and positive negative copper bar.

As preferred scheme, the three-phase line copper nose passes through the three-phase line fixed plate to be fixed on the three-phase fixing base, the three-phase copper bar inserts in the second guide slot on the three-phase fixing base, one side of three-phase fixing base is equipped with the mounting hole, and the screw stretches into the mounting hole and fixes three-phase line copper bar and three-phase line copper nose.

As a preferred scheme, a waterproof cap is further arranged on the mounting hole, one end of the power line is fastened with the positive and negative fixing seats through a locking joint, and a positive and negative plug at one end is arranged at the other end of the power line.

The utility model discloses a positive negative copper bar and three-phase copper bar that set up on the controller subassembly are connected power cord and motor three-phase line respectively, and positive negative copper bar all inserts positive negative fixing base with the power cord, and three-phase copper bar all inserts the three-phase fixing base with motor three-phase line, and integrated density is high, and integrative voltinism is strong, and connects simple and convenient safe and reliable, has guaranteed EMC, waterproof nature's requirement, just the utility model discloses a three-phase line fixed plate also has certain effect of cutting off motor and controller cavity with the three-phase fixing base simultaneously.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a three-in-one electric drive axle;

FIG. 2 is a schematic connection diagram of a wiring harness integrated mounting structure of a three-in-one electric drive axle;

FIG. 3 is an exploded view of the harness integrated mounting structure of the three-in-one electric drive axle;

FIG. 4 is an overall schematic view of a wiring harness integrated mounting structure of a three-in-one electric drive axle;

FIG. 5 is a schematic structural view of a three-in-one electric drive axle three-phase mounting seat;

FIG. 6 is a schematic structural view of positive and negative fixing seats of the three-in-one electric drive axle;

fig. 7 is a first schematic view of an installation structure of a three-in-one electric drive axle three-phase line fixing plate and a controller housing;

fig. 8 is a second schematic view of the mounting structure of the three-in-one electric drive axle three-phase line fixing plate and the controller housing.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The integrated connection structure of three phases and positive and negative lines of an electric drive axle as shown in fig. 1 comprises a shell, a power line 51, a motor assembly 2 arranged in the shell, a speed reducer assembly 1 and a controller assembly 3 arranged at one end of the shell, as shown in fig. 2 to 8, the integrated connection structure of three phases and positive and negative lines of an electric drive axle comprises a power line 51, a positive and negative fixed seat 511, a three-phase fixed seat 512, a positive and negative copper bar 54 and a three-phase copper bar 55, wherein the power line 51 and the positive and negative copper bar 54 are respectively inserted into the positive and negative fixed seat 511, and are fastened and connected through screws 53, the motor assembly 2 comprises a stator 510, a motor three-phase line 57 is arranged on the stator 510, a three-phase line copper nose 56 is arranged on the motor three-phase line 57, the three-phase line copper nose 56 and a three-phase copper bar 55 are respectively inserted into a three-phase fixing seat 512, and are fastened and connected through screws 53, and the positive and negative copper bars 54 and the three-phase copper bar 55 are respectively connected with the controller assembly 3. The controller assembly 3 includes a controller housing 519, and the positive and negative fixing bases 511 and the three-phase fixing base 512 are both fixed on the controller housing 519.

The power cord 51 inserts positive negative fixing base 511 respectively with positive negative copper bar 54 in to through screw 53 fastening connection, motor element 2 includes stator 510, is equipped with three-phase line 57 on the stator 510, is equipped with three-phase line copper nose 56 on the three-phase line 57 of motor, and three-phase line copper nose 56 inserts respectively with three-phase copper bar 55 in the three-phase fixing base 512, and through screw 53 fastening connection.

One end of each of the two power lines 51 is inserted into the bottom through holes of the positive and negative fixing seats 511, the two positive and negative copper bars 54 are inserted into the positive and negative fixing seats 511 through the first guide grooves 518 of the positive and negative fixing seats 511, the two first guide grooves 518 are arranged at intervals, the bottom through holes are communicated with the first guide grooves 518, one side of each of the positive and negative fixing seats 511 is provided with a mounting hole, and the screw 53 extends into the mounting hole to fasten the power lines 51 and the positive and negative copper bars 54.

The three-phase line copper nose 56 is fixed on the three-phase fixing base 512 through the three-phase line fixing plate 516, the three-phase copper bar 55 is inserted into the second guide groove 517 on the three-phase fixing base 512, one side of the three-phase fixing base 512 is provided with a mounting hole, and the screw 53 stretches into the mounting hole to fix the three-phase copper bar 55 and the three-phase line copper nose 56.

And a waterproof cap 514 is further arranged on the mounting hole, one end of the power line 51 is fastened with the positive and negative fixing seats 511 through a locking joint 52, and the other end of the power line 51 is provided with a positive and negative plug 515 at one end.

In the structure, three-phase wires of a motor of a stator and a three-phase wire copper nose arranged at a right angle are firstly arranged in a three-phase fixing seat under the common assistance of a three-phase wire fixing plate and a controller shell, and a three-phase copper bar at the end of a controller is arranged in the three-phase fixing seat through a three-phase wire fixing seat guide groove; positive and negative copper bars of the controller are arranged in the positive and negative fixed seats, and the positive and negative copper bars are communicated with the three-phase copper bars; the power line is connected into the positive and negative fixed seats through the locking joint; then, the three phase lines of the motor at the end of the motor and the power line at the end of the battery are respectively and reliably connected with the positive and negative copper bars and the three-phase copper bars of the controller on the threaded hole seats of the positive and negative fixed seats and the three-phase fixed seat through screws outside the controller shell, and finally, a waterproof cap is arranged on the controller shell; what is connected with the battery finally is positive and negative plug, has realized the internal connection scheme of high internal integration.

It should be noted that the above embodiments are merely representative examples of the present invention. The utility model can also have a plurality of deformations. Any simple modification, equivalent changes and modifications made to the above embodiments according to the essence of the present invention should be considered as belonging to the protection scope of the present invention.

Claims

1. An integrated connection structure of three phases and positive and negative lines of an electric drive axle is characterized by comprising a controller component (3), a motor component (2), a power line (51), a positive and negative fixed seat (511), a three-phase fixed seat (512), a positive and negative copper bar (54) and a three-phase copper bar (55), the power line (51) and the positive and negative copper bars (54) are respectively inserted into the positive and negative fixed seats (511), and are fastened and connected through screws (53), the motor component (2) comprises a stator (510), a motor three-phase line (57) is arranged on the stator (510), a three-phase line copper nose (56) is arranged on the motor three-phase line (57), the three-phase line copper nose (56) and a three-phase copper bar (55) are respectively inserted into a three-phase fixed seat (512), and are fastened and connected through screws (53), and the positive and negative copper bars (54) and the three-phase copper bar (55) are respectively connected with the controller component (3).

2. The structure of claim 1, wherein one end of each of two power lines (51) is inserted into two spaced bottom through holes of the positive and negative holders (511), two positive and negative copper bars (54) are inserted into the positive and negative holders (511) through two spaced first guide grooves (518) on the upper portions of the positive and negative holders (511), the bottom through holes are communicated with the first guide grooves (518), and one side of each of the positive and negative holders (511) is provided with a mounting hole, and a screw (53) extends into the mounting hole to fasten the power line (51) and the positive and negative copper bars (54).

3. The structure of claim 1, wherein the three-phase copper bar lug (56) is fixed on the three-phase fixing base (512) through a three-phase fixing plate (516), the three-phase copper bar (55) is inserted into a second guide slot (517) on the three-phase fixing base (512), a mounting hole is formed in one side of the three-phase fixing base (512), and a screw (53) extends into the mounting hole to fix the three-phase copper bar (55) and the three-phase copper bar lug (56).

4. The structure of claim 2 or 3, wherein a waterproof cap (514) is further disposed on the mounting hole, one end of the power cord (51) is fastened to the positive and negative fixing seats (511) through a locking joint (52), and the other end of the power cord (51) is provided with a positive and negative plug (515).