CN217643072U - Copper bar and motor controller - Google Patents

Abstract

The utility model provides a copper bar, including switching copper bar subassembly and direct current copper bar subassembly, be fixed with the magnetic ring on the switching copper bar subassembly, switching copper bar subassembly has positive connecting portion and negative connecting portion, and the magnetic ring sets up in the bottom of switching copper bar subassembly, and direct current copper bar subassembly includes the anodal copper post that is used for connecting positive connecting portion and the negative copper post that is used for connecting the negative connecting portion; after the switching copper bar assembly is coupled with the direct current copper bar assembly, the positive copper column and the negative copper column penetrate through the magnetic ring. The utility model discloses be in the same place magnetic ring and switching copper bar subassembly are fixed, the copper post can be pressed close to the at utmost to the magnetic ring, plays better anti-interference effect, reduces occupation space. The utility model discloses still provide a machine controller.

Description

Copper bar and motor controller

Technical Field

The utility model relates to a machine controller technical field especially relates to a copper bar and machine controller.

Background

The new energy automobile is provided with a motor controller, and one function of the motor controller is to convert direct current at a power battery end into alternating current at an input side of the motor. In the motor controller, since there is electromagnetic interference that affects normal communication, a magnetic ring is added at a power supply line, a communication line, and a harness terminal to achieve suppression of high-frequency interference. The magnetic ring is an interference suppressor, acts as a low-pass filter, and can better solve the problem of high-frequency interference suppression of power lines, signal lines and wiring harness terminals. The motor controller is also provided with a switching copper bar for connecting an external high-voltage cable.

In the process of implementing the present invention, the inventor finds that there are at least the following problems in the prior art: the existing magnetic ring and the switching copper bar are two independent parts which are respectively arranged at different positions of a motor controller, the occupied space is large, the assembly is time-consuming, and the improvement space exists in the aspect of interference suppression.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent.

Therefore, the utility model aims to provide a copper bar that occupation space is little, interference suppression is good.

In order to achieve the above object, the copper bar provided by the first aspect of the present invention comprises a switching copper bar assembly and a dc copper bar assembly, wherein a magnetic ring is fixed on the switching copper bar assembly, the switching copper bar assembly has a positive connecting portion and a negative connecting portion, the magnetic ring is disposed at the bottom of the switching copper bar assembly, and the dc copper bar assembly comprises a positive copper column for connecting the positive connecting portion and a negative copper column for connecting the negative connecting portion; when the switching copper bar assembly is coupled with the direct current copper bar assembly, the positive copper column and the negative copper column penetrate through the magnetic ring.

The utility model discloses a copper bar passes the magnetic ring with anodal copper post, negative pole copper post and connects, has played the anti-interference effect. The utility model discloses a copper post's structure compares slice, banding conducting structure, can reduce copper bar occupation space, and the corresponding magnetic ring size that has reduced, the copper post can be pressed close to the at utmost to the magnetic ring, plays better anti-interference effect. The magnetic ring is fixed with the switching copper bar assembly, so that the number of parts can be reduced, the installation process is simplified, and the material cost and the time cost are reduced.

According to the utility model discloses an embodiment, still include integrated into one piece's the first casing and the magnetic ring protection box of moulding plastics, switching copper bar subassembly is fixed on the first casing of moulding plastics, the magnetic ring is installed in the magnetic ring protection box.

According to the utility model discloses an embodiment, the magnetic ring protects the box and includes outer rampart and interior rampart, the outer rampart with interior rampart integrated into one piece is in on the first casing of moulding plastics, the magnetic ring install by the outer rampart with in the space that forms between the interior rampart, the middle part of interior rampart still is equipped with the partition wall.

According to the utility model discloses an embodiment, the bottom of first casing of moulding plastics still is provided with a plurality of first mounting holes and second mounting hole, the second mounting hole with outer rampart is neighbouring to be set up and integrated into one piece.

According to the utility model discloses an embodiment, switching copper bar subassembly still includes anodal switching copper bar, negative pole switching copper bar and dead eye, anodal switching copper bar with anodal connecting portion an organic whole is connected, negative pole switching copper bar with negative pole connecting portion an organic whole is connected, anodal connecting portion with negative pole connecting portion all install in the dead eye, anodal switching copper bar with negative pole switching copper bar interval arrangement is in on the first casing of moulding plastics.

According to the utility model discloses an embodiment, the outer edge of first casing of moulding plastics is equipped with the lateral wall, the both sides of anodal switching copper bar are equipped with the support wall, the both sides of negative pole switching copper bar also are equipped with the support wall.

According to the utility model discloses an embodiment, at a corner of first injection moulding casing, the top of lateral wall outwards extends and forms the extension, the extension with adjacent the lateral wall forms the space that is used for installing high-pressure interlocking pencil.

According to the utility model discloses an embodiment, direct current copper bar subassembly still includes the second casing of moulding plastics, the bottom of anodal copper post is connected with a plurality of positive terminals, the bottom of negative pole copper post is connected with a plurality of negative terminals, the negative terminal with at least some quilt of positive terminals the second casing parcel of moulding plastics.

The utility model discloses the second aspect provides a machine controller, include as above-mentioned first aspect a copper bar.

According to the utility model discloses an embodiment still includes direct current wiring lid and big lid, big lid sets up motor controller's top, switching copper bar unit mount is in motor controller's inside, direct current wiring lid detachably installs and covers greatly, works as direct current wiring lid pulls down the back, can expose switching copper bar unit's top surface.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of an overall structure of a copper bar according to an embodiment of the present invention.

Fig. 2 is a schematic view of the structure of the bottom of the switching copper bar assembly according to an embodiment of the present invention.

Fig. 3 is an assembly schematic view of a copper bar according to an embodiment of the present invention.

Fig. 4 is another angular view of fig. 3.

Fig. 5 is a top view of a motor controller according to an embodiment of the present invention.

Fig. 6 is a schematic view of an embodiment of the present invention relating to a copper bar installed on a motor controller.

Fig. 7 is a schematic diagram of the utility model discloses an embodiment relates to copper bar and pencil terminal after installation.

Description of reference numerals:

1-switching copper bar assembly, 2-extension part, 3-first injection molding shell, 4-magnetic ring protection box, 5-direct current copper bar assembly, 6-magnetic ring, 7-first installation hole, 8-side wall, 9-notch, 11-supporting wall, 12-positive electrode connecting part, 13-negative electrode connecting part, 14-positive electrode copper column, 15-negative electrode copper column, 16-second injection molding shell, 17-big cover, 18-negative electrode wiring end, 19-positive electrode wiring end, 20-insulating hole, 21-direct current wiring cover, 22-motor controller, 23-wiring harness, 24-wiring harness terminal, 25-high voltage interlocking wiring harness, 41-outer ring wall, 42-inner ring wall, 43-second installation hole, 44-copper bar wall, 101-positive electrode switching copper bar, 102-negative electrode switching copper bar.

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 accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

Referring to fig. 1 to 3, a copper bar provided in a first aspect of the embodiment of the present invention includes a switching copper bar assembly 1 and a dc copper bar assembly 5, a magnetic ring 6 is fixed on the switching copper bar assembly 1, the switching copper bar assembly 1 has a positive connecting portion 12 and a negative connecting portion 13, the magnetic ring 6 is disposed at the bottom of the switching copper bar assembly 1, and the dc copper bar assembly 5 includes a positive copper column 14 for connecting the positive connecting portion 12 and a negative copper column 15 for connecting the negative connecting portion 13; after the switching copper bar assembly 1 and the direct current copper bar assembly 5 are coupled, the positive copper column 14 and the negative copper column 15 pass through the magnetic ring 6. Switching copper bar subassembly 1 and direct current copper bar subassembly 5 can dismantle the connection, from this, when switching copper bar subassembly 1 and direct current copper bar subassembly 5 arbitrary one damaged, can only change the subassembly that damages, need not change whole copper bar, and the replacement cost is low.

In this embodiment, the switching copper bar assembly 1 is used for connecting with a wiring harness terminal outside the motor controller. The direct current copper bar assembly 5 is used for connecting and conducting the wiring harness terminal with the power module and the capacitor in the motor controller through the switching copper bar assembly 1. The magnetic ring 6 is a ring-shaped magnetizer. When the adapter copper bar assembly 1 and the dc copper bar assembly 5 are coupled, it can be interpreted that the positive connection portion 12 is conducted with the positive copper column 14 and the negative connection portion 13 is conducted with the negative copper column 15.

Alternatively, the positive electrode connecting portion 12 is in abutting conduction with the top surface of the positive electrode copper pillar 14, and the negative electrode connecting portion 13 is in abutting conduction with the top surface of the negative electrode copper pillar 15. Wherein, the positive copper column 14 and the negative copper column 15 adopt cylindrical structures.

The copper bar in this embodiment passes the magnetic ring with anodal copper post, negative pole copper post and connects, has played the anti-interference effect. The utility model discloses a copper post, this kind of columniform conducting structure compares slice, banding conducting structure, can reduce copper bar occupation space, and the corresponding magnetic ring size that has reduced, the copper post can be pressed close to the magnetic ring at utmost, plays better anti-interference effect. The magnetic ring and the switching copper bar assembly are fixed together and integrated into a part, so that the number of the parts can be reduced, the installation process is simplified, and the material cost and the time cost are reduced.

In some embodiments, referring to fig. 1 and fig. 2, the copper bar further includes a first injection-molded housing 3 and a magnetic ring protection box 4 which are integrally formed, the switching copper bar assembly 1 is fixed on the first injection-molded housing 3, and the magnetic ring 6 is installed in the magnetic ring protection box 4.

Alternatively, the first injection-molded housing 3 and the magnetic ring protection case 4 are integrally molded. The magnetic ring 6 is encapsulated in the magnetic ring protection box 4.

Alternatively, referring to fig. 2, the magnetic ring protection case 4 includes an outer annular wall 41 and an inner annular wall 42, the outer annular wall 41 and the inner annular wall 42 are integrally formed on the first injection-molded case 3, the magnetic ring 6 is installed in a space formed between the outer annular wall 41 and the inner annular wall 42, and a partition wall 44 is further provided at a middle portion of the inner annular wall 42. The partition wall 44 can isolate and insulate the positive copper pillar 14 and the negative copper pillar 15, and has sufficient electrical clearance and creepage distance between the positive copper pillar 14 and the negative copper pillar 15, and at the same time, plays a role of a reinforcing structure.

Optionally, the bottom of the first injection-molded housing 3 is further provided with a plurality of first mounting holes 7 and second mounting holes 43, and the second mounting holes 43 are disposed adjacent to the outer annular wall 41 and are integrally formed. The first mounting hole 7 can be used for connecting the switching copper bar assembly 1 and the direct current copper bar assembly 5 together by using a fastener. Fasteners can be used in the second mounting holes 43 to connect the external wiring harness of the motor controller with the copper bars. The number of the first mounting holes 7 and the second mounting holes 43 may be set according to actual requirements.

In some embodiments, with reference to fig. 1 to 3, the switching copper bar assembly 1 further includes a positive switching copper bar 101, a negative switching copper bar 102 and an insulating hole 20, the positive switching copper bar 101 is integrally connected to the positive connecting portion 12, the negative switching copper bar 102 is integrally connected to the negative connecting portion 13, the insulating hole 20 is a mounting hole and is disposed above the positive switching copper bar 101 and the negative switching copper bar 102, the switching copper bar assembly 1 and the dc copper bar assembly 5 can be connected together through a fastener in the insulating hole 20, the positive connecting portion 12 and the negative connecting portion 13 can be seen from the insulating hole 20 inwards, and the positive switching copper bar 101 and the negative switching copper bar 102 are disposed on the first injection-molded housing 3 at intervals. The number of insulation holes 20 is two and the size of the insulation holes 20 is matched to the size of the mating fastener. Optionally, the insulation hole 20 is integrally formed with the first injection molded housing 3. The positive electrode switching copper bar 101 and the negative electrode switching copper bar 102 are in a sheet shape, are flatly laid on the first injection molding shell 3, have a large contact area, and are provided with inner screw holes for being connected with a wire harness outside the motor controller. The positive electrode switching copper bar 101 and the negative electrode switching copper bar 102 are fixed together by the first injection molding shell 3 through injection molding.

The outer edge of the first injection molding shell 3 is provided with a side wall 8, two sides of the anode switching copper bar 101 are provided with supporting walls 11, and two sides of the cathode switching copper bar 102 are also provided with supporting walls 11. Alternatively, the length and height of the side walls 8 are designed according to actual requirements. The side wall 8 may not surround the entire first injection-molded housing 3, but should be provided with at least one notch for the wiring harness terminal to penetrate through outside the motor controller. The side wall 8 is integrally formed with the first injection-molded housing 3. The bottom of the support wall 11 has a notch 9. The purpose of the notches 9 is to make the thickness of the support wall 11 uniform with that of the side wall 8, which facilitates the production by injection moulding. The supporting wall 11 is used for limiting the harness terminal and preventing the harness terminal from deflecting in the installation process.

In some embodiments, referring to fig. 1, 2 and 4, at one corner of the first injection molded housing 3, the top end of the side wall 8 extends outward to form an extension 2, and the extension 2 and the adjacent side wall 8 form a space for mounting the high voltage interlock wiring harness 25. The present embodiment provides a mounting location for only the high voltage interlock wiring harness 25. The design of the high voltage interlock harness is referred to the prior art and will not be described.

In some embodiments, referring to fig. 3, the dc copper bar assembly 5 further includes a second injection molded housing 16, the bottom of the positive copper bar 14 is connected with a plurality of positive terminals 19, the bottom of the negative copper bar 15 is connected with a plurality of negative terminals 18, and at least a portion of the negative terminals 18 and the positive terminals 19 are wrapped by the second injection molded housing 16. The negative terminal 18 and the positive terminal 19 are isolated from each other by the second injection molded case 16 and insulated from each other. The ends of the positive terminal 19 and the negative terminal 18 need to be exposed for electrical conduction with the internal bus bars and capacitor connections of the motor controller.

In view of the above, referring to fig. 5, a second aspect of the embodiment of the present invention provides a motor controller. The motor controller comprises a copper bar of the first aspect.

Further, with reference to fig. 5 to 7, the motor controller further includes a dc connection cover 21 and a large cover 17, the large cover 17 is disposed on the top of the motor controller, the switching copper bar assembly 1 is mounted inside the motor controller, the dc connection cover 21 is detachably mounted on the large cover 17, and when the dc connection cover 21 is detached, the top surface of the switching copper bar assembly 1 can be exposed through an opening, so that the positive switching copper bar 101 and the negative switching copper bar 102 can be exposed. The dc wiring cover 21 can cover the switching copper bar assembly 1. The dc link cover 21 can prevent small items such as screws from falling into the interior of the motor controller during transportation and storage of the motor controller. After receiving the motor controller, an assembler takes down the direct-current wiring cover 21, assembles the wiring harness 23 with the switching copper bar assembly 1, and after assembly, bolts are respectively connected with the positive switching copper bar 101 and the negative switching copper bar 102 through wiring harness terminals 24. Because switching copper bar subassembly 1 has first casing 3 of moulding plastics, can effectively insulate plug-in components terminal 24 and motor controller's casing.

The embodiment of the utility model provides a motor controller can reach the same or similar effect of aforementioned copper bar embodiment.

It should be noted that, in the description of the present invention, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps in the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A copper bar, comprising: the magnetic ring is arranged at the bottom of the switching copper bar assembly (1), and the direct current copper bar assembly (5) comprises an anode copper column (14) used for connecting the anode connecting part (12) and a cathode copper column (15) used for connecting the cathode connecting part (13); after the switching copper bar assembly (1) is coupled with the direct current copper bar assembly (5), the positive copper column (14) and the negative copper column (15) penetrate through the magnetic ring (6).

2. The copper bar as claimed in claim 1, further comprising a first injection-molded casing (3) and a magnetic ring protection box (4) which are integrally formed, wherein the switching copper bar assembly (1) is fixed on the first injection-molded casing (3), and the magnetic ring (6) is installed in the magnetic ring protection box (4).

3. The copper bar as claimed in claim 2, wherein the magnetic ring protection box (4) comprises an outer annular wall (41) and an inner annular wall (42), the outer annular wall (41) and the inner annular wall (42) are integrally formed on the first injection-molded shell (3), the magnetic ring (6) is installed in a space formed between the outer annular wall (41) and the inner annular wall (42), and a partition wall (44) is further arranged in the middle of the inner annular wall (42).

4. A copper busbar according to claim 3, wherein the bottom of the first injection molded casing (3) is further provided with a plurality of first mounting holes (7) and second mounting holes (43), and the second mounting holes (43) are arranged adjacent to the outer annular wall (41) and are integrally formed.

5. The copper bar as claimed in claim 2, wherein the switching copper bar assembly (1) further comprises a positive switching copper bar (101), a negative switching copper bar (102) and an insulation hole (20), the positive switching copper bar (101) is integrally connected with the positive connecting portion (12), the negative switching copper bar (102) is integrally connected with the negative connecting portion (13), the positive connecting portion (12) and the negative connecting portion (13) are both installed in the insulation hole (20), and the positive switching copper bar (101) and the negative switching copper bar (102) are arranged on the first injection-molded casing (3) at intervals.

6. The copper bar as claimed in claim 5, wherein the outer edge of the first injection-molded shell (3) is provided with a side wall (8), support walls (11) are provided on two sides of the positive switching copper bar (101), and support walls (11) are also provided on two sides of the negative switching copper bar (102).

7. The copper bar as claimed in claim 6, wherein at one corner of the first injection molded shell (3), the top end of the side wall (8) extends outwards to form an extension part (2), and the extension part (2) and the adjacent side wall (8) form a space for installing a high-voltage interlocking wire harness (25).

8. The copper bar as claimed in claim 1, wherein the direct current copper bar assembly (5) further comprises a second injection molded shell (16), the bottom of the positive copper bar (14) is connected with a plurality of positive terminals (19), the bottom of the negative copper bar (15) is connected with a plurality of negative terminals (18), and at least a part of the negative terminals (18) and the positive terminals (19) are wrapped by the second injection molded shell (16).

9. A motor controller comprising a copper bar as claimed in any one of claims 1 to 8.

10. The motor controller according to claim 9, further comprising a dc wiring cover (21) and a large cover (17), wherein the large cover (17) is disposed on top of the motor controller, the switching copper bar assembly (1) is mounted inside the motor controller, the dc wiring cover (21) is detachably mounted on the large cover (17), and when the dc wiring cover (21) is detached, the top surface of the switching copper bar assembly (1) can be exposed.

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