CN214900677U

CN214900677U - Input side rectifying device for motor controller

Info

Publication number: CN214900677U
Application number: CN202120648864.XU
Authority: CN
Inventors: 陈登峰; 秦基伟; 温小伟; 宋君峰; 魏粲然; 周诗君; 孙臣玉; 位超群
Original assignee: Shanghai Auto Edrive Co Ltd; Shanghai Auto Edrive Engineering Technology Research Center; Shanghai Edrive Co Ltd
Current assignee: Shanghai Auto Edrive Co Ltd; Shanghai Auto Edrive Engineering Technology Research Center; Shanghai Edrive Co Ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-11-26
Anticipated expiration: 2031-03-31

Abstract

The utility model relates to an input side rectifying device for a motor controller, which comprises a bracket, a first grounding copper sheet pair, a second grounding copper sheet pair, a first Y capacitor pair, a first magnetic ring, an X capacitor, a second Y capacitor pair, a second magnetic ring, two current-conducting plates and two current-conducting plates, wherein the first grounding copper sheet pair, the second grounding copper sheet pair, the first Y capacitor pair, the first magnetic ring, the X capacitor, the second Y capacitor pair, the second magnetic ring and the two current-conducting plates are arranged in parallel, and the first Y capacitor pair, the first magnetic ring, the X capacitor, the second Y capacitor pair and the second magnetic ring are arranged on the bracket and are sequentially arranged along the direction of the current-conducting plates, one pin of two Y capacitors in the first Y capacitor pair is respectively connected with two grounding copper sheets of the first grounding copper sheet pair, the other pin is respectively connected with two current-conducting plates, two pins of the X capacitor are respectively connected with two current-conducting plates, one pin of two Y capacitors in the second Y capacitor pair is respectively connected with two grounding copper sheets of the second grounding copper sheet pair, and the other pin is respectively connected with two current-conducting plates. Compared with the prior art, the utility model has the advantages of improve electromagnetic compatibility.

Description

Input side rectifying device for motor controller

Technical Field

The utility model belongs to the technical field of machine controller and specifically relates to an input side fairing for machine controller is related to.

Background

Along with the working frequency of a motor controller of an electric drive core component is higher and higher, the problem of electromagnetic interference is more and more prominent, the EMC requirement of a whole vehicle end on the motor controller is higher and higher, because a power module in the working process of the controller can generate fast transient voltage and current, and the fast changing voltage or current forms an interference source through parasitic capacitance and parasitic inductance, so that harmonic waves are generated, the power supply system of the whole vehicle is influenced, and the normal work of other electric systems of the whole vehicle is further influenced. In the traditional electric drive system, a 10kHz module is basically selected, the working switching frequency is generally very low, a magnetic ring filter is basically and dispersedly arranged in a motor controller, and a Y capacitor filter can meet the requirement of the whole vehicle.

If the voltage and the current of the direct current input of the controller are not well rectified and filtered, the electromagnetic compatibility becomes worse, the stability and the reliability of the whole vehicle controller are inevitably affected, and the requirement of the whole vehicle is difficult to meet.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an input side fairing for machine controller has set up two Y electric capacities, and the electric current through the current conducting plate loops through big Y electric capacity of one-level, one-level magnetic ring, X electric capacity, the little Y electric capacity of second grade, second grade magnetic ring, adopts five-stage filtering, can improve the filtering effect to make whole car have more excellent electromagnetic compatibility.

The purpose of the utility model can be realized through the following technical scheme:

an input side rectifying device for a motor controller comprises a bracket, a first grounding copper sheet pair, a second grounding copper sheet pair, a first Y capacitor pair, a first magnetic ring, an X capacitor, a second Y capacitor pair, a second magnetic ring and two conducting plates which are arranged on the bracket in parallel, and all pass through the first magnetic ring, the first Y capacitor pair, the first magnetic ring, the X capacitor, the second Y capacitor pair and the second magnetic ring are arranged on the bracket and are sequentially arranged along the direction of the conductive plate, one pin of two Y capacitors in the first Y capacitor pair is respectively connected with two grounding copper sheets of the first grounding copper sheet pair, the other pin is respectively connected with two conductive plates, two pins of the X capacitor are respectively connected with two conductive plates, one pin of two Y capacitors in the second Y capacitor pair is respectively connected with two grounding copper sheets of the second grounding copper sheet pair, and the other pin is respectively connected with two conductive plates.

Furthermore, a first device groove, a second device groove, a fourth device groove, a fifth device groove and a sixth device groove are formed in the support, two capacitors of the first Y capacitor pair are arranged in the first device groove and the second device groove respectively, the X capacitor is arranged in the fourth device groove, and two capacitors of the second Y capacitor pair are arranged in the fifth device groove and the sixth device groove respectively.

Further, the first device groove and the second device groove are larger in size than the fifth device groove and the sixth device groove.

Furthermore, four circular grooves for placing four grounding copper sheets are further formed in the support (3).

Furthermore, a support is arranged on the support, a third device groove is formed in the support, and the first magnetic ring is arranged in the third device groove.

Furthermore, the device also comprises a compression reed, wherein two sides of the support are provided with clamping holes, two sides of the compression reed are respectively provided with two buckles matched with the two clamping holes, and the first magnetic ring is compressed by the compression reed after being placed in the third device groove.

Furthermore, a convex rib is arranged on the bottom surface of the third device groove.

Furthermore, the first magnetic ring comprises a first magnetic conduction block and a second magnetic conduction block which are vertically stacked, two channels are arranged in the second magnetic conduction block, and the two current conduction plates respectively penetrate through the two channels.

Furthermore, the second magnetic conduction block is positioned above the first magnetic conduction block.

Furthermore, the second magnetic ring is arranged at the edge of the support.

Furthermore, the current-conducting plate comprises a first mounting hole, a first pin, a vertical plate, a second pin, a second mounting hole and a third pin, the first pin is connected with a pin of a Y capacitor in the first Y capacitor pair, the second pin is connected with a pin of an X capacitor, the third pin is connected with a pin of a Y capacitor in the second Y capacitor pair, and the vertical plate penetrates through the first magnetic ring.

Compared with the prior art, the utility model discloses following beneficial effect has:

1) the external input side rectifying device is provided with two Y capacitors, current passing through a current conducting plate sequentially passes through a primary large Y capacitor, a primary magnetic ring, an X capacitor, a secondary small Y capacitor and a secondary magnetic ring, and a five-stage filtering mode is adopted, so that the filtering effect can be improved, and the whole vehicle has excellent electromagnetic compatibility.

2) The capacitor is accommodated through the designed groove, the structure of the product is compact, the size of the product is reduced, the integration level is high, the assembly precision is high, and the automatic assembly and the maintenance are easy to realize.

3) The third device mounting groove is higher than other device mounting grooves, and the conducting plate can directly penetrate through the third device mounting groove and is easy to assemble.

4) The pressing reed can improve the installation effect of the first magnetic ring, and the buckle structure can conveniently detach the first magnetic ring to take out from the side face.

5) The convex ribs can improve the fixing effect of the first magnetic ring and improve the stability.

6) The edge of support is located to the second magnetic ring, improves the compactness.

7) The pins are arranged on the conductive sheet, so that the assembly is easy and the maintenance is convenient.

Drawings

FIG. 1 is a schematic view of the assembly of an embodiment of the present invention;

FIG. 2 is a schematic structural view of a stent in an embodiment;

FIG. 3 is a schematic diagram of a first Y capacitor in an embodiment;

FIG. 4 is a schematic structural diagram of a first magnetic ring in the embodiment;

FIG. 5 is a schematic structural diagram of a pressing spring in the embodiment;

FIG. 6 is a schematic diagram of the structure of the X capacitor in the embodiment;

FIG. 7 is a schematic diagram of a second Y capacitor in the embodiment;

FIG. 8 is a schematic structural diagram of a second magnetic ring in the embodiment;

FIG. 9 is a schematic diagram of a first conductive plate according to an embodiment;

FIG. 10 is a schematic diagram of a second conductive plate according to an embodiment;

wherein, 1 is a first conductive plate, 2 is a second conductive plate, 3 is a bracket, a grounding copper sheet, 5 is a first Y capacitor pair, 6 is a compression reed, 7 is a first magnetic ring, 8 is an X capacitor, 9 is a second Y capacitor pair, 10 is a second magnetic ring, 1-1 is a first mounting hole, 1-2 is a first pin corner, 1-3 is a vertical plate, 1-4 is a second pin corner, 1-5 is a second mounting hole, 1-6 is a third pin corner, 2-1 is a first mounting hole, 2-2 is a first pin corner, 2-3 is a vertical plate, 2-4 is a second pin corner, 2-5 is a second mounting hole, 2-6 is a third pin corner, 3-1 is a first circular groove, 3-2 is a second circular groove, 3-3 is a first device groove, 3-4 is a second device groove, 3-5 is a third device groove, 3-6 is a buckle, 3-7 is a third circular groove, 3-8 is a fourth circular groove, 3-9 is a fourth device groove, 3-10 is a fifth device groove, 3-11 is a sixth device groove, 3-12 is an annular groove, 5-1 is a No. 1Y capacitor, 5-2 is a No. 2Y capacitor, 6-1 is a clamping hole, 7-1 is a first magnetic conduction block, 7-2 is a second magnetic conduction block, 7-3 is a channel, 9-1 is a No. 3Y capacitor, and 9-2 is a No. 4Y capacitor.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

An input side rectifying device for a motor controller is shown in figure 1 and comprises a bracket 3, a first grounding copper sheet pair, a second grounding copper sheet pair, a first Y capacitor pair 5, a first magnetic ring 7, an X capacitor 8, a second Y capacitor pair 9, a second magnetic ring 10 and two conducting plates, wherein the first grounding copper sheet pair, the second grounding copper sheet pair, the first Y capacitor pair 5, the second magnetic ring 7, the X capacitor 8, the second Y capacitor pair 9 and the second magnetic ring 10 are arranged on the bracket 3 in parallel and penetrate through the first magnetic ring 7, one pin of two Y capacitors in the first Y capacitor pair 5 is respectively connected with two grounding copper sheets of the first grounding copper sheet pair, the other pin of two Y capacitors in the first Y capacitor pair 5 is respectively connected with the two conducting plates, the two pins of the X capacitor 8 are respectively connected with the two conducting plates, one pin of two Y capacitors in the second Y capacitor pair 9 is respectively connected with two grounding copper sheets of the second grounding copper sheet pair, the other pin is respectively connected with two conductive plates, namely a first conductive plate 1 and a second conductive plate 2.

The external input side rectifying device is provided with two Y capacitors, current passing through a current conducting plate sequentially passes through a primary large Y capacitor, a primary magnetic ring, an X capacitor, a secondary small Y capacitor and a secondary magnetic ring, and a five-stage filtering mode is adopted, so that the filtering effect can be improved, and the whole vehicle has excellent electromagnetic compatibility.

In some embodiments, as shown in fig. 2, the bracket 3 is provided with a first device slot 3-3, a second device slot 3-4, a fourth device slot 3-8, a fifth device slot 3-10, and a sixth device slot 3-11, two capacitors of the first Y capacitor pair 5 are respectively disposed in the first device slot 3-3 and the second device slot 3-4, the X capacitor 8 is disposed in the fourth device slot 3-8, and two capacitors of the second Y capacitor pair 9 are respectively disposed in the fifth device slot 3-10 and the sixth device slot 3-11, so that the product has a compact structure, a reduced volume, high integration, high assembly precision, and easy automation assembly and maintenance, and in one embodiment, the first device slot 3-3 and the second device slot 3-4 have a size larger than the fifth device slot 3-10 and the sixth device slot 3-11, the volume can be further reduced.

As shown in fig. 6, the X capacitor 8 has two pins, and as shown in fig. 3, the first Y capacitor pair 5 is composed of a No. 1Y capacitor 5-1 and a No. 2Y capacitor 5-2, and the No. 1Y capacitor 5-1 and the No. 2Y capacitor 5-2 are respectively fixed in corresponding device grooves of the bracket 3 by silicone potting; as shown in fig. 7, the fourth device 9 includes a No. 3Y capacitor 9-1 and a No. 4Y capacitor 9-2, and the No. 3Y capacitor 9-1 and the No. 4Y capacitor 9-2 are respectively fixed in corresponding device grooves of the bracket 3 by silicone potting; the X capacitor 8 is fixed in the fourth device groove 3-9 of the bracket 3 through silica gel encapsulation,

in some embodiments, as shown in fig. 2, the bracket 3 has a first circular groove 3-1 and a second circular groove 3-2 at the front end, and a third circular groove 3-7 and a fourth circular groove 3-8 at the rear end, and can be used for placing four grounding copper sheets.

In some embodiments, the support 3 is provided with a support seat, a third device groove 3-5 is formed in the support seat, the first magnetic ring 7 is arranged in the third device groove 3-5, the third device installation groove is higher than other device installation grooves, and the conductive plate can directly penetrate through the third device installation groove, so that the assembly is easy. In addition, the device also comprises a compression reed 6, two sides of the support are provided with clamping holes 6-1, as shown in figure 5, two sides of the compression reed 6 are respectively provided with two buckles 3-6 matched with the two clamping holes 6-1, and the first magnetic ring 7 is compressed by the compression reed 6 after being placed in the third device groove 3-5.

In some embodiments, the bottom surfaces of the third device grooves 3-5 are provided with protruding ribs, specifically 3 protruding ribs, which can improve the fixing effect of the first magnetic ring and improve the stability.

In some embodiments, as shown in fig. 4, the first magnetic ring 7 includes a first magnetic conduction block 7-1 and a second magnetic conduction block 7-2 stacked up and down, and two channels 7-3 are provided in the second magnetic conduction block 7-2, and two conductive plates are respectively arranged through the two channels 7-3. The section of the second magnetic conduction block 7-2 is M-shaped, and the second magnetic conduction block 7-2 is positioned above the first magnetic conduction block 7-1.

In some embodiments, as shown in fig. 8, the second magnetic ring 10 is disposed at the edge of the bracket, specifically, installed through the annular groove 3-12 on the bracket (3), which can improve compactness, specifically, the second magnetic ring 10 is a racetrack-shaped magnetic ring, and is fixed in the annular groove 3-12 of the bracket 3 by silica gel encapsulation.

In a preferred embodiment, the second conductive plate 2 is identical to the first conductive plate, both having a mirror-symmetrical configuration. As shown in fig. 9 and 10, the first conductive plate 1 includes a first mounting hole 1-1, a first pin 1-2, a vertical plate 1-3, a second pin 1-4, a second mounting hole 1-5, and a third pin 1-6; the positive pole (or negative pole) output end of the previous stage device and the input end of the first conductive plate 1 are jointly fixed at the front end of the support 3 through a screw at a first mounting hole 1-1, the first needle corner 1-2 is electrically connected with one lead of a No. 1Y capacitor 5-1 of the first device 5, the vertical plate 1-3 penetrates through a gap in the middle of the second device 7, the second needle corner 1-4 is electrically connected with one lead of a third device 8, the third needle corner 1-6 is electrically connected with one lead of a No. 3Y capacitor 9-1 of the fourth device 9, and the positive pole (or negative pole) input end of the next stage device penetrates through the fifth device 10 and then is jointly fixed at the rear end of the support 3 with the output end of the first conductive plate 1 at a second mounting hole 1-5. The second conducting plate 2 comprises a first mounting hole 2-1, a first needle angle 2-2, a vertical plate 2-3, a second needle angle 2-4, a second mounting hole 2-5 and a third needle angle 2-6; the output end of the cathode (or the anode) of the previous stage device and the input end of the second conductive plate 1 are jointly fixed at the front end of the support 3 through a screw at a first mounting hole 2-1, the first pin angle 2-2 is electrically connected with one lead of a No. 1Y capacitor 5-2 of the first device 5, the vertical plate 2-3 passes through a gap in the middle of the second device 7, the second pin angle 2-4 is electrically connected with one lead of a third device 8, the third pin angle 2-6 is electrically connected with one lead of a No. 4Y capacitor 9-2 of a fourth device 9, and the output end of the second conductive plate 2 are jointly fixed at the rear end of the support 3 at a second mounting hole 2-5 after the input end of the cathode (or the anode) of the next stage device passes through a fifth device 10.

The assembly process of the multistage electromagnetic compatibility device for the motor controller is as follows:

1) and sequentially encapsulating a No. 1Y capacitor 5-1 and a No. 2Y capacitor 5-2 contained in the first Y capacitor pair 5, an X capacitor 8, a No. 3Y capacitor 9-1 and a No. 4Y capacitor 9-2 contained in the second Y capacitor pair 9 and a second magnetic ring 10 in each device groove or annular groove (1-12) of the bracket 3 through silica gel.

2) And placing the first magnetic conduction block 7-1 of the first magnetic ring 7 in the third device groove 3-5.

3) High-temperature-resistant insulating tapes are respectively wound on the vertical plates 1-3 of the first current-conducting plate 1 and the vertical plates 2-3 of the second current-conducting plate 2.

4) The two ends of the first conductive plate 1 and the second conductive plate 2 are fixed on the bracket 3 through screws in sequence.

5) And a second magnetic conduction block 7-2 of the first magnetic ring 7 is placed in a third device groove 3-5 in a downward mode.

6) The clamping holes 6-1 at the two ends of the compression reed 6 are sequentially clamped on the buckles 3-6 of the bracket 3, and the compression reed 6 can apply effective pressure on the second magnetic conduction block 7-2 of the first magnetic ring 7.

7) And 4 grounding copper sheets 4 are sequentially fixed in a first circular groove 3-1, a second circular groove 3-2, a third circular groove 3-7 and a fourth circular groove 3-8 of the bracket 3 through screws, and the needle angle of the grounding copper sheet 4 is ensured to face the direction of a Y capacitor lead wire which needs to be electrically connected with the grounding copper sheet.

8) And electrically connecting a first pin angle 1-2, a second pin angle 1-4 and a third pin angle 1-6 of the first conductive plate 1 with corresponding leads on a No. 1Y capacitor 5-1, an X capacitor 8 and a No. 3Y capacitor 9-1 respectively in a soldering mode.

9) And electrically connecting the first pin angle 2-2, the second pin angle 2-4 and the third pin angle 2-6 of the second electric plate with corresponding leads on a No. 2Y capacitor 5-2, an X capacitor 8 and a No. 4Y capacitor 9-2 respectively in a soldering mode.

10) The pin angles of the 4 grounding copper sheets 4 are respectively and electrically connected with corresponding lead wires on the No. 1Y capacitor 5-1, the No. 2Y capacitor 5-2, the No. 3Y capacitor 9-1 and the No. 4Y capacitor 9-2 in a soldering mode.

Claims

1. The input side rectifying device for the motor controller is characterized by comprising a support (3), a first grounding copper sheet pair, a second grounding copper sheet pair, a first Y capacitor pair, a first magnetic ring (7), an X capacitor (8), a second Y capacitor pair, a second magnetic ring (10) and two conducting plates, wherein the first grounding copper sheet pair, the second grounding copper sheet pair, the first Y capacitor pair, the first magnetic ring (7), the X capacitor (8), the second Y capacitor pair and the second magnetic ring (10) are arranged in parallel and penetrate through the first magnetic ring (7), one pin of the two Y capacitors in the first Y capacitor pair is respectively connected with the two grounding copper sheets of the first grounding copper sheet pair, the other pin of the two Y capacitors in the first Y capacitor pair is respectively connected with the two conducting plates, the two pins of the X capacitor (8) are respectively connected with the two conducting plates, and one pin of the two Y capacitors in the second Y capacitor pair is respectively connected with the two grounding copper sheets of the second grounding copper sheet pair And the other pin of the grounding copper sheet is respectively connected with the two conductive plates.

2. An input-side rectifying device for a motor controller according to claim 1, wherein the bracket (3) is provided with a first device slot (3-3), a second device slot (3-4), a fourth device slot (3-8), a fifth device slot (3-10), and a sixth device slot (3-11), the two capacitors of the first Y capacitor pair are respectively disposed in the first device slot (3-3) and the second device slot (3-4), the X capacitor (8) is disposed in the fourth device slot (3-8), and the two capacitors of the second Y capacitor pair are respectively disposed in the fifth device slot (3-10) and the sixth device slot (3-11).

3. An input side rectifying device for a motor controller according to claim 1, wherein said bracket (3) is further provided with four circular grooves for placing four grounding copper sheets, respectively.

4. An input-side rectifying device for a motor controller according to claim 1, wherein a support is provided on said bracket (3), a third device groove (3-5) is formed in said support, and said first magnetic ring (7) is disposed in said third device groove (3-5).

5. An input side rectifying device for a motor controller according to claim 4, wherein the device further comprises a compression spring (6), the two sides of the support are provided with clamping holes (6-1), the two sides of the compression spring (6) are respectively provided with two buckles (3-6) matched with the two clamping holes (6-1), and the compression spring (6) compresses the first magnetic ring (7) after the first magnetic ring is placed in the third device groove (3-5).

6. An input-side rectifying device for a motor controller according to claim 4, wherein a rib is provided on a bottom surface of said third device groove (3-5).

7. An input-side rectifying device for a motor controller according to claim 1, wherein said first magnetic ring (7) comprises a first magnetic conductive block (7-1) and a second magnetic conductive block (7-2) stacked one above another, and two channels (7-3) are provided in said second magnetic conductive block (7-2), and two conductive plates are respectively disposed through said two channels (7-3).

8. An input-side rectifying device for a motor controller according to claim 7, wherein said second magnetic conductive block (7-2) is located above said first magnetic conductive block (7-1).

9. An input-side rectifying device for a motor controller as claimed in claim 1, wherein said second magnetic ring (10) is provided at the edge of the bracket.

10. The input-side rectifying device for the motor controller as claimed in claim 1, wherein the conductive plate includes a first mounting hole, a first pin, a vertical plate, a second pin, a second mounting hole and a third pin, the first pin is connected to a pin of a Y capacitor in the first Y capacitor pair, the second pin is connected to a pin of an X capacitor, the third pin is connected to a pin of a Y capacitor in the second Y capacitor pair, and the vertical plate passes through the first magnetic ring.