CN217486338U - Copper bar connecting seat structure of electric drive axle - Google Patents

Abstract

The utility model provides a copper bar connecting seat structure of an electric drive axle, which comprises a copper bar and an electromagnetic shielding plate, wherein the electromagnetic shielding plate is provided with through holes, the copper bar comprises a plurality of copper connecting pieces, and the number of the through holes is the same as that of the copper connecting pieces; the electric drive axle comprises a motor and a motor controller; the plurality of copper connecting pieces penetrate through the through holes, one end of each copper connecting piece is connected with the motor, and the other end of each copper connecting piece is connected with the motor controller, so that the motor and the motor controller are electrically connected; and an insulating layer is arranged at one end of the copper bar connected with the motor and/or one end of the copper bar connected with the motor controller. The sealing of the motor window and the motor controller window is realized, the electromagnetic interference is shielded, and the number of parts of the assembly is reduced.

Description

Copper bar connecting seat structure of electric drive axle

Technical Field

The utility model relates to an electric drive bridge technical field especially relates to a copper bar connecting seat structure of electric drive bridge.

Background

In the electric bridge system, the motor controller is connected with the motor through the copper bar of the copper bar connecting seat, so that the current conduction is realized, and the motor can be controlled by the motor controller.

The position of copper bar connecting seat is in between motor window and the controller window, and the oil that will prevent the motor cavity promptly comes out, needs to prevent again that outside air from getting into the controller.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical defect, the utility model aims to provide a can realize the sealed and electromagnetic interference's in the shielding assembly system electric drive bridge's of motor and controller cavity copper bar connecting seat structure.

The utility model discloses a copper bar connecting seat structure of an electric drive axle, which comprises a copper bar and an electromagnetic shielding plate, wherein the electromagnetic shielding plate is provided with through holes, the copper bar comprises a plurality of copper connecting pieces, and the number of the through holes is the same as that of the copper connecting pieces; the electric drive axle comprises a motor and a motor controller; the plurality of copper connecting pieces penetrate through the through holes, one end of each copper connecting piece is connected with the motor, and the other end of each copper connecting piece is connected with the motor controller, so that the motor and the motor controller are electrically connected; and an insulating layer is arranged at one end of the copper bar connected with the motor and/or one end of the copper bar connected with the motor controller.

Preferably, the copper bar comprises a bending section, and the bending section comprises two vertical folding angles, so that the copper bar sections on two sides of the bending section are parallel to each other; the insulating layer is arranged on the bending section.

Preferably, each copper connecting piece of the copper bar is respectively wrapped with the insulating layer; the insulating layer is disposed adjacent to the electromagnetic shield.

Preferably, the electromagnetic shielding plate is provided with a flanging structure in the circumferential direction of the plurality of through holes, and the flanging structure is in abutting contact with the shell of the motor controller.

Preferably, the flanging structure comprises a plurality of flanging units which are circumferentially arranged, and the plurality of flanging units are arranged at intervals.

Preferably, a plurality of protrusions are arranged on the end face, in contact with the shell of the motor controller, of the insulating layer, the protrusions are circumferentially arranged on the insulating layer, and a sealing structure is formed between the insulating layer and the shell of the motor controller through the protrusions; the insulating layer with be equipped with a plurality of on the terminal surface of the casing contact of motor the arch is in circumference sets up on the insulating layer, through the arch makes form seal structure between the insulating layer with the casing of motor.

Preferably, the copper bar is integrally wrapped by the insulating layer; the insulating layer is disposed adjacent to the electromagnetic shield.

Preferably, a plurality of grooves are formed in the insulating layer, and the grooves are sequentially arranged along the arrangement direction of the copper connecting pieces.

Preferably, a sealing element is arranged between the electromagnetic shielding plate and a shell of the motor controller and between the electromagnetic shielding plate and the shell of the motor.

Preferably, the insulating layer is vulcanized rubber or plastic.

After the technical scheme is adopted, compared with the prior art, the method has the following beneficial effects:

1. the insulating layer is arranged on the copper bar connecting seat structure, so that the motor window and the motor controller window are sealed; and when the motor and the motor controller can not be connected by metal touch metal, a metal shielding structure is structurally arranged on the copper bar connecting seat, so that the electromagnetic interference of high voltage and high frequency is shielded.

Drawings

Fig. 1 is a perspective view of a first embodiment of a copper bar connecting seat structure of an electric drive axle provided by the present invention;

fig. 2 is a cross-sectional view of the electric drive axle provided with the copper bar connecting seat structure of the first embodiment of the present invention;

fig. 3 is a schematic view of a contact between a flanging structure of the copper bar connecting seat structure and a motor controller according to the first embodiment of the present invention;

fig. 4 is a perspective view of a second embodiment of the copper bar connecting seat structure of the electric drive axle provided by the present invention;

fig. 5 is a sectional view of the electric drive axle provided with the copper bar connecting seat structure of the second embodiment.

Wherein: 1-copper connecting piece, 2-electromagnetic shielding plate, 3-insulating layer, 4-flanging structure, 5-bulge, 6-groove and 7-sealing piece.

Detailed Description

The advantages of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or may be connected between two elements through an intermediate medium, or may be directly connected or indirectly connected, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

In the following description, suffixes such as "module", "part", or "unit" used to indicate elements are used only for the convenience of description of the present invention, and have no specific meaning in itself. Thus, "module" and "component" may be used in a mixture.

Referring to the attached drawing 1, the utility model discloses a copper bar connecting seat structure of electric drive axle for connect electric drive axle's motor and machine controller, realize the conduction of the electric current between motor and the machine controller, thereby make machine controller can control the motor.

This copper bar connecting seat structure includes copper bar and electromagnetic shield 2 for when the unable metal of motor controller bumps metal connection, shield the electromagnetic interference of high pressure high frequency.

Be equipped with the through-hole on the electromagnetic shield board 2, the copper bar includes a plurality of copper connecting pieces 1, and the quantity of through-hole is the same with the quantity of copper connecting piece 1. And a plurality of copper connecting pieces 1 penetrate through the through holes, one end of each copper connecting piece is connected with the motor, and the other end of each copper connecting piece is connected with the motor controller, so that the motor and the motor controller are electrically connected.

The insulating layer 3 is arranged at one end of the copper bar connected with the motor and/or one end of the copper bar connected with the motor controller, so that the electrical safety clearance between the copper bar and the motor shell and between the copper bar and the motor controller shell is guaranteed while the cavity of the motor and the motor controller is sealed.

The utility model discloses a copper bar connecting seat structure integral type shaping has realized the sealed of motor window and machine controller window promptly, has shielded electromagnetic interference again, has reduced the spare part quantity of assembly simultaneously.

Preferably, the copper bar comprises a bending section, the bending section comprises two vertical folding angles, so that the copper bar sections on two sides of the bending section are parallel to each other, and the copper bar sections on two sides are respectively connected with the motor and the motor controller. The insulating layer 3 is arranged on the bending section, so that the sealing of the motor window and the motor controller window is realized.

One kind is preferred, and the quantity of copper connecting piece 1 is six, and the six looks copper bars pass through the riveting nut and connect the motor, make the copper bar paste tightly, reduce contact resistance, realize the current conduction.

Referring to fig. 1-2, in a preferred first embodiment, each copper connecting member 1 of the copper bar is wrapped with an insulating layer 3, and the insulating layer 3 is disposed close to the electromagnetic shielding plate 2. The insulating layer 3 is made of vulcanized rubber.

Referring to fig. 3, the electromagnetic shielding plate is provided with a flanging structure 4 in the circumferential direction of the plurality of through holes, the flanging structure 4 is in abutting contact with the shell of the motor controller, and the flanging structure 4 generates weak deformation when abutting, so as to seal the motor controller and the copper bar connecting seat structure.

Preferably, the flanging structure 4 comprises a plurality of flanging units which are circumferentially arranged, and the plurality of flanging units are arranged at intervals, so that the pressing force is reduced while the metal contact is ensured.

Preferably, referring to fig. 2-3, the insulating layer 3 is provided with a plurality of protrusions 5 on an end surface contacting with the housing of the motor controller, and the protrusions 5 are circumferentially disposed on the insulating layer, which can be understood as an annular sealing ring disposed on the insulating layer 3, so that a waterproof sealing structure is formed between the insulating layer 3 and the housing of the motor controller by the protrusions 5.

Insulating layer 3 is equipped with a plurality of archs 5 on the terminal surface with the casing contact of motor equally, and protruding 5 circumference sets up on the insulating layer, can understand as locating an annular seal circle on insulating layer 3, makes to form grease proofing seal structure between the casing of insulating layer 3 and motor through protruding 5.

Referring to fig. 4-5, in a preferred second embodiment, the insulating layer 3 is integrally wrapped on the copper bar by injection molding, and the insulating layer 3 is disposed close to the electromagnetic shielding plate 2. The insulating layer 3 is of a plastic construction.

Preferably, a plurality of grooves 6 are formed in the insulating layer 3, and the plurality of grooves 6 are sequentially arranged along the arrangement direction of the copper connecting piece 1, so that materials are reduced, and pretightening force is applied.

Furthermore, a subunit of the insulating layer 3 is disposed in the groove 6, and the subunit can be understood as a small bump structure to prevent the sealing failure caused by an excessive gap in the groove 6.

Preferably, sealing grooves are arranged between the electromagnetic shielding plate and the shell of the motor controller and between the electromagnetic shielding plate and the shell of the motor, and sealing elements 7 are arranged in the sealing grooves so as to realize waterproof sealing of a cavity of the motor controller and oil-proof sealing of the motor.

It should be noted that the embodiments of the present invention have better practicability and are not intended to limit the present invention in any way, and any person skilled in the art may change or modify the technical contents disclosed above to equivalent effective embodiments, but all the modifications or equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.

Claims (10)

1. A copper bar connecting seat structure of an electric drive axle is characterized by comprising a copper bar and an electromagnetic shielding plate, wherein the electromagnetic shielding plate is provided with through holes, the copper bar comprises a plurality of copper connecting pieces, and the number of the through holes is the same as that of the copper connecting pieces;

the electric drive axle comprises a motor and a motor controller; the plurality of copper connecting pieces penetrate through the through holes, one end of each copper connecting piece is connected with the motor, and the other end of each copper connecting piece is connected with the motor controller, so that the motor and the motor controller are electrically connected;

and an insulating layer is arranged at one end of the copper bar connected with the motor and/or one end of the copper bar connected with the motor controller.

2. The copper bar connecting seat structure as claimed in claim 1, wherein the copper bar includes a bent section, and the bent section includes two vertical folding angles, so that the copper bar sections on both sides of the bent section are parallel to each other;

the insulating layer is arranged on the bending section.

3. The copper bar connecting seat structure as claimed in claim 2, wherein each of the copper connecting pieces of the copper bar is wrapped with the insulating layer;

the insulating layer is disposed adjacent to the electromagnetic shield.

4. The copper bar connecting seat structure as claimed in claim 3, wherein the electromagnetic shielding plate is provided with a flange structure around the plurality of through holes, and the flange structure is in pressing contact with the housing of the motor controller.

5. The copper bar connecting seat structure as claimed in claim 4, wherein the flanging structure comprises a plurality of flanging units arranged circumferentially, and the plurality of flanging units are arranged at intervals.

6. The copper bar connecting seat structure as claimed in claim 3, wherein the insulating layer is provided with a plurality of protrusions on an end surface contacting with the casing of the motor controller, the protrusions are circumferentially arranged on the insulating layer, and a sealing structure is formed between the insulating layer and the casing of the motor controller through the protrusions;

the insulating layer with be equipped with a plurality of on the terminal surface of the casing contact of motor the arch, the arch is in circumference sets up on the insulating layer, through protruding make the insulating layer with form seal structure between the casing of motor.

7. The copper bar connecting seat structure as claimed in claim 2, wherein the insulating layer entirely wraps the copper bar;

the insulating layer is disposed adjacent to the electromagnetic shield.

8. The copper bar connecting seat structure as claimed in claim 7, wherein the insulating layer is provided with a plurality of grooves, and the plurality of grooves are sequentially arranged along the arrangement direction of the copper connecting pieces.

9. The copper bar connecting seat structure as claimed in claim 7, wherein a sealing member is provided between the electromagnetic shielding plate and the casing of the motor controller and between the electromagnetic shielding plate and the casing of the motor.

10. The copper bar connecting seat structure as claimed in claim 2 or 7, wherein the insulating layer is vulcanized rubber or plastic.

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