CN115498898B - Integrated filtering structure for driver - Google Patents
Integrated filtering structure for driver Download PDFInfo
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- CN115498898B CN115498898B CN202110675409.3A CN202110675409A CN115498898B CN 115498898 B CN115498898 B CN 115498898B CN 202110675409 A CN202110675409 A CN 202110675409A CN 115498898 B CN115498898 B CN 115498898B
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- 238000001914 filtration Methods 0.000 title claims abstract description 6
- 238000003466 welding Methods 0.000 claims description 72
- 239000003990 capacitor Substances 0.000 claims description 32
- 238000003825 pressing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- WJZHMLNIAZSFDO-UHFFFAOYSA-N manganese zinc Chemical compound [Mn].[Zn] WJZHMLNIAZSFDO-UHFFFAOYSA-N 0.000 description 2
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000004382 potting Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- 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
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
- Power Conversion In General (AREA)
Abstract
The invention relates to an integrated filtering structure for a driver, which comprises a rectifying seat, a current carrying part, a grounding cover and a plurality of rectifying devices, wherein the rectifying devices are arranged in a placement space on the rectifying seat, the rectifying seat is L-shaped, a first-order placement space and a second-order placement space are arranged on a short arm end, a bottom hole for inserting a first guide plate is arranged in the second-order placement space, a cylindrical hole for placing a guide rod is arranged in the second-order placement space, a third-order placement space, a fourth-order placement space, a fifth-order placement space, a sixth-order placement space and a seventh-order placement space which are sequentially arranged from one side to the other side of the short arm end, and a straight slot for inserting a second guide plate.
Description
Technical Field
The invention relates to a filter structure for a driver, in particular to an integrated filter structure for a driver.
Background
With the continuous development of the new energy automobile industry, electric automobiles are increasingly popularized to thousands of households, and the safety and the comfort of the whole automobile are also increasingly focused on passengers, so that the electromagnetic interference suppression of the whole automobile is also increasingly focused. The electric drive system is used as a core key device in a new energy automobile, particularly the motor controller is used as a high-frequency switching device, electromagnetic radiation and conduction interference can be generated in the actual working process, although the controller box body is an aluminum alloy shell, the electric drive system has a good shielding effect, the current of the battery end of the whole automobile is fluctuated, the fluctuated current enters the controller along with the transmission of a wire harness, the interference clearing and conduction difficulty is high, the traditional mode is to simply add a magnetic block and a PCB to add magnetic beads or add a group of Y capacitors to solve the problem, the traditional grounding design scheme is single-point grounding, the grounding effect is poor, the whole grounding network cannot be formed, the operation is small in filtering link, large in installation volume and scattered in grounding, and therefore the requirement of the electromagnetic compatibility performance test of the whole automobile is difficult to meet.
And if the filter element is required to be added, the structure of the whole device is overlarge, and the limitation is brought to the layout of the device of the whole vehicle, so that the application range is narrow, the filter structure for the driver is urgently required to be designed, the integral structural integration level can be improved, and a plurality of filter rectifying elements can be highly integrated together under the condition of not increasing the space occupation to meet the noise performance test requirement of the whole vehicle.
Disclosure of Invention
The invention aims to provide an integrated filter structure for a driver.
The aim of the invention can be achieved by the following technical scheme:
an integrated filter structure for a driver comprises a rectifying seat, a current carrying part and a plurality of rectifying devices, wherein the rectifying devices are arranged in a placing space on the rectifying seat, the filter structure also comprises a grounding cover, the current carrying part comprises a first guide plate, a guide rod and a second guide plate,
The rectifying seat is L-shaped, a first-order placing space, a second-order placing space and a bottom hole for inserting the first guide plate are arranged on the short arm end, a cylindrical hole for placing the guide rod is arranged in the second-order placing space, a third-order placing space, a fourth-order placing space, a fifth-order placing space, a sixth-order placing space and a seventh-order placing space which are sequentially arranged from one side to the other side of the short arm end, and a straight groove for inserting the second guide plate are arranged on the long arm end, the straight groove penetrates through the fourth-order placing space and the sixth-order placing space,
The two ends of the flow guide rod are respectively connected with a first flow guide plate and a second flow guide plate, the first flow guide plate is connected with the rectifying devices arranged in the first-order placing space and the second-order placing space, the second flow guide plate is connected with the rectifying devices arranged in the third-order placing space, the fourth-order placing space, the fifth-order placing space, the sixth-order placing space and the seventh-order placing space,
The grounding cover is provided with a fifth welding point and a plurality of protruding columns, after the grounding cover is covered with the rectifying seat, each protruding column respectively presses the rectifying device in the third-order placing space, the fourth-order placing space, the fifth-order placing space, the sixth-order placing space and the seventh-order placing space, the grounding ends of the rectifying devices in the third-order placing space, the fifth-order placing space and the seventh-order placing space are connected with the corresponding protruding columns, and the fifth welding point is connected with the grounding end of the rectifying device in the first-order placing space.
The first guide plate is provided with a first welding point, the second guide plate is provided with a second welding point, a third welding point and a fourth welding point, the first welding point is connected with the rectifying device in the first-order placing space, and the second welding point, the third welding point and the fourth welding point are correspondingly connected with the rectifying device in the third-order placing space, the fifth-order placing space and the seventh-order placing space respectively.
The first welding point is U-shaped and forked, and the second welding point, the third welding point and the fourth welding point are columnar.
The second-order placing space is an elliptical annular groove, and the side wall is provided with cylindrical ribs.
The third-order placing space is a second square groove positioned on one side of the straight groove, the fifth-order placing space comprises two fourth square grooves respectively positioned on two sides of the straight groove, and the seventh-order placing space comprises two sixth square grooves respectively positioned on two sides of the straight groove.
A third rectifying device is arranged in the third-order placing space, a fifth rectifying device is arranged in the fifth-order placing space, a seventh rectifying device is arranged in the seventh-order placing space,
The third rectifying device comprises a first X capacitor and a first cover plate, wherein the first X capacitor is arranged in the second square groove, a first grounding spring piece serving as a grounding end, a first welding point passing hole for passing a second welding point and a first pin passing hole for passing a first X capacitor pin are arranged on the first cover plate,
The fifth rectifying device comprises two first Y capacitors and a second cover plate, the two first Y capacitors are respectively arranged in the two fourth square grooves, a second grounding spring piece serving as a grounding end, a second welding point passing hole for passing through a third welding hole and a second pin passing hole for passing through a first Y capacitor pin are arranged on the second cover plate,
The seventh rectifying device comprises two second Y capacitors and a third cover plate, the two second Y capacitors are respectively arranged in the two sixth grooves, and a third grounding spring piece serving as a grounding end, a third welding point passing hole for passing through a fourth welding hole and a second pin passing hole for passing through a second Y capacitor pin are arranged on the third cover plate.
The first grounding spring piece, the second grounding spring piece and the third grounding spring piece are all inverted W-shaped.
The first cover plate, the second cover plate and the third cover plate are fixed with the rectifying seat through screws.
The four-stage placement space is internally provided with a fourth rectifying device, the six-stage placement space is internally provided with a sixth rectifying device, the fourth rectifying device and the sixth rectifying device are magnetic rings and are arranged around the second guide plate, the fourth rectifying device and the sixth rectifying device are formed by combining an upper rectifying block and a lower rectifying block, the upper rectifying block is of a strip-shaped structure, the lower rectifying block is of a U-shaped structure, two T-shaped through holes are formed in two sides of the bottom surface of the upper rectifying block, and two T-shaped clamping blocks matched with the T-shaped through holes are formed in the upper parts of two sides of the lower rectifying block.
The first guide plate comprises a first plate, a second plate and a third plate, the first plate and the third plate are parallel, are perpendicular to the second plate and are located on the same side of the second plate, the first plate is inserted into the bottom hole and connected with the guide rod, and the third plate is located on the surface of the rectifying seat and is fixed with the rectifying seat through a screw.
Compared with the prior art, the invention has the following beneficial effects:
1) The installation space of the seven-order rectifier is far higher than that of a traditional 1-2-order rectifier assembly, all rectifiers are installed inside a rectifier base, the structure is complex and the size is small, seven rectifier devices can be integrated into a whole simultaneously, the high-integration rectifier is manufactured, the grounding of the whole rectifier is connected with one ground through the grounding cover to form a grounding grid, an electromagnetic shielding effect is formed, the traditional bolting is omitted, the rectifier has strong anti-interference performance, meanwhile, the structure is compact, the assembly on an inverter is easier, the structure can be customized according to different electromagnetic environments of different vehicles, flexible matching and increasing and decreasing can be performed, the noise testing level requirements of different vehicles can be met, and the high compatibility, expansibility and economy are achieved.
2) The special design grounding cover can connect all grounding points into a whole grounding network, and the whole grounding cover is like a metal cover, and the metal cover also plays a good shielding effect, and the performance of the grounding cover is improved more than that of the prior single-point grounding scheme.
3) The cover plate serves as a pressing plate to improve the installation stability of each rectifying device.
4) The split type current-carrying piece can make full use of the vacant space, and the L-row rectifying seat can utilize the corner gap between the vehicle components, so that the integration level is improved.
5) The fourth rectifier and the sixth rectifier divide equally into upper rectifying block and lower rectifying block to two are the through hole of "T" style of calligraphy structure has been seted up to upper rectifying block bottom surface both sides, and two are "worker" style of calligraphy structure has been seted up to lower rectifying block's upper portion both sides, and the complete close fit of "T" style of calligraphy structure of lower rectifying block and the through hole of "T" style of calligraphy structure of upper rectifying block can be guaranteed, improve assembly efficiency under the firm reliable circumstances after upper and lower rectifying block is assembled, the cooperation is compacter like this, the structural reliability is higher.
6) The design of first guide plate can save space and occupy under the circumstances of guaranteeing firm degree.
Drawings
FIG. 1 is an exploded view of an embodiment of the present invention;
FIG. 2 is a schematic view of a first view angle structure of a rectifying seat according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a carrier plate structure according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a third, fifth and seventh rectifier according to an embodiment of the present invention;
FIG. 5 is a schematic view of a grounding cover according to an embodiment of the invention;
FIG. 6 is a schematic diagram of a fourth and sixth rectifier according to an embodiment of the present invention;
Fig. 7 is a schematic diagram of a second rectifier according to an embodiment of the invention.
Wherein: 1. a rectifying seat, 2, a current-carrying plate, 3, a first rectifying device, 4, a second rectifying device, 5, a third rectifying device, 6, a fourth rectifying device, 7, a fifth rectifying device, 8, a sixth rectifying device, 9, a seventh rectifying device, 10, a grounding cover, 1-1, a bottom hole, 1-2, a first-order placing space, 1-3, a second-order placing space, 1-4, a cylindrical hole, 1-5, a straight slot, 1-6, a third-order placing space, 1-7, a fourth-order placing space, 1-8, a fifth-order placing space, 1-9, a sixth-order placing space, 1-10, a seventh-order placing space, 2-1, a first guide plate, 2-2, a guide rod, 2-3 and a second guide plate, 2-1-1, a first welding point, 2-3-1, a second welding point, 2-3-2, a third welding point, 2-3-3, a fourth welding point, 5-1, a first X capacitor, 5-2, a first grounding spring piece, 5-3, a first welding point through hole, 7-1, a first Y capacitor, 7-2, a second grounding spring piece, 7-3, a second welding point through hole, 9-1, a second Y capacitor, 9-2, a third grounding spring piece, 9-3, a third welding point through hole, 6-1, an upper rectifying block, 6-2, a lower rectifying block, 10-1, a fifth welding point, 10-2, a first grounding column, 10-3, a first compressing column, 10-4, a second grounding column, 10-5, a second compressing column, 10-6, third grounding post
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples. The present embodiment is implemented on the premise of the technical scheme of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following examples.
The integrated filter structure for the driver comprises a rectifying seat 1, a current carrying part 2 and a plurality of rectifying devices, wherein the rectifying devices are arranged in a placing space on the rectifying seat 1, the filter structure further comprises a grounding cover 10, as shown in fig. 3, the current carrying part 2 comprises a first guide plate 2-1, a guide rod 2-2 and a second guide plate 2-3, and the guide rod 2-2 can be a round copper rod generally.
As shown in FIG. 2, the rectifying seat 1 is L-shaped, a first-order placing space 1-2 and a second-order placing space 1-3 are arranged on a short arm end, a bottom hole 1-1 for inserting a first deflector 2-1 is arranged in the second-order placing space 1-3, a cylindrical hole for placing a deflector rod 2-2 is arranged in the second-order placing space, a third-order placing space 1-6, a fourth-order placing space 1-7, a fifth-order placing space 1-8, a sixth-order placing space 1-9 and a seventh-order placing space 1-10 which are sequentially arranged from one side to the other side near the short arm end are arranged on a long arm end, a straight groove 1-5 for inserting a second deflector 2-3 penetrates through the fourth-order placing space 1-7 and the sixth-order placing space 1-9,
The two ends of the flow guide rod 2-2 are respectively connected with a first flow guide plate 2-1 and a second flow guide plate 2-3, the first flow guide plate 2-1 is connected with rectifying devices arranged in a first-order placing space 1-2 and a second-order placing space 1-3, the second flow guide plate 2-3 is connected with rectifying devices arranged in a third-order placing space 1-6, a fourth-order placing space 1-7, a fifth-order placing space 1-8, a sixth-order placing space 1-9 and a seventh-order placing space 1-10,
As shown in fig. 5, a fifth welding point 10-1 and a plurality of protruding columns are arranged on the grounding cover 10, after the grounding cover 10 is covered with the rectifying seat 1, each protruding column respectively presses the rectifying devices in the third-order placing space 1-6, the fourth-order placing space 1-7, the fifth-order placing space 1-8, the sixth-order placing space 1-9 and the seventh-order placing space 1-10, and grounding ends of the rectifying devices in the third-order placing space 1-6, the fifth-order placing space 1-8 and the seventh-order placing space 1-10 are connected with the corresponding protruding columns, and the fifth welding point 10-1 is connected with the grounding ends of the rectifying devices in the first-order placing space 1-2.
The installation space of the seven-order rectifier is far higher than that of a traditional 1-2-order rectifier assembly, all rectifiers are installed inside a rectifier base, the structure is complex and the size is small, seven rectifier devices can be integrated into a whole simultaneously, the high-integration rectifier is manufactured, the grounding of the whole rectifier is connected with one ground through the grounding cover to form a grounding grid, an electromagnetic shielding effect is formed, the traditional bolting is omitted, the rectifier has strong anti-interference performance, meanwhile, the structure is compact, the assembly on an inverter is easier, the structure can be customized according to different electromagnetic environments of different vehicles, flexible matching and increasing and decreasing can be performed, the noise testing level requirements of different vehicles can be met, and the high compatibility, expansibility and economy are achieved.
The first-order placing space 1-2 is composed of two small square grooves, the first rectifying device comprises two devices, which can be capacitors in general, and is respectively encapsulated in the two small square grooves, the first rectifying device 3 is arranged at the forefront end of the rectifying seat, positive and negative pins of the first rectifying device are electrically connected with the first guide plate 2-1, and ground pins of the first rectifying device are electrically connected with the ground cover 10. The second rectifying device 4 is a magnetic ring and is sleeved on the cylindrical hole 1-4, and the guide rod 2-2 is arranged in the cylindrical hole 1-4 and is correspondingly sleeved on the guide rod 2-2.
In some embodiments, the deflector rod 2-2 is fixed to the first deflector 2-1 and the second deflector 2-3 by laser welding, and the height of the cylindrical hole 1-4 is about 1 mm.
The first guide plate 2-1 is provided with a first welding point 2-1-1, the second guide plate 2-3 is provided with a second welding point 2-3-1, a third welding point 2-3-2 and a fourth welding point 2-3-3, the first welding point 2-1-1 is connected with the rectifying device in the first-order placing space 1-2, and the second welding point 2-3-1, the third welding point 2-3-2 and the fourth welding point 2-3-3 are correspondingly connected with the rectifying device in the third-order placing space 1-6, the fifth-order placing space 1-8 and the seventh-order placing space 1-10 respectively. In some embodiments, the first weld 2-1-1 is U-shaped in a split, and the second weld 2-3-1, the third weld 2-3-2, and the fourth weld 2-3-3 are cylindrical. Specifically, in this embodiment, the shape of the column is square.
In some embodiments, the second-order placing space 1-3 is an elliptical annular groove, the side wall is provided with cylindrical ribs, and the second rectifying device 4 is fixed in the second-order placing space 1-3 in a potting mode, so that certain gaps are reserved between the bottom and the side face of the second rectifying device in the potting process, pouring sealant can flow, and the second rectifying device is better fixed.
In some embodiments, the third-order placement space 1-6 is a second square groove located at one side of the straight groove 1-5, the fifth-order placement space 1-8 comprises two fourth square grooves located at two sides of the straight groove 1-5, and the seventh-order placement space 1-10 comprises two sixth square grooves located at two sides of the straight groove 1-5. The third rectifying device 5 is arranged in the third-order placing space 1-6, the fifth rectifying device 7 is arranged in the fifth-order placing space 1-8, the seventh rectifying device 9 is arranged in the seventh-order placing space 1-10, as shown in fig. 4, the third rectifying device 5 comprises a first X capacitor 5-1 and a first cover plate, the first X capacitor 5-1 is arranged in a second square groove, a first grounding spring piece 5-2 serving as a grounding end, a first welding point through hole 5-3 used for passing through a second welding point 2-3-1 and a first pin through hole used for passing through a first X capacitor 5-1 pin are arranged on the first cover plate, the fifth rectifying device 7 comprises two first Y capacitors 7-1 and a second cover plate, the two first Y capacitors 7-1 are respectively arranged in two fourth square grooves, a second grounding hole 7-2 serving as a grounding end is arranged on the second cover plate, a second welding point through hole 7-3 used for passing through a third welding hole and a second rectifying pin through hole used for passing through a first Y capacitor 7-1 pin through the first grounding end are arranged on the first cover plate, and the second cover plate comprises two first Y capacitors 7-1 and a second cover plate, and the second Y capacitors 7-1 and the second Y capacitors 9-9 are respectively arranged on the second cover plate and pass through the second grounding hole 9 through the second grounding hole serving as the third grounding hole and the third cover plate 9.
In some of these embodiments, the X capacitance value is 5uf, the first Y capacitance value is 2.3nf, and the second Y capacitance value is 10nf.
In some of these embodiments, the first grounding spring pieces 5-2, the second grounding spring pieces 7-2, and the third grounding spring pieces 9-2 are each inverted W-shaped.
In some of these embodiments, the first cover plate, the second cover plate and the third cover plate are all fixed to the rectifying seat 1 by screws.
In some embodiments, the fourth rectifying device 6 is arranged in the fourth-order placing space 1-7, the sixth rectifying device 8 is arranged in the sixth-order placing space 1-9, the fourth rectifying device 6 and the sixth rectifying device 8 are magnetic rings and are arranged around the second guide plate 2-3, the fourth rectifying device and the sixth rectifying device have the same size and structure, the cross section of the fourth rectifying device and the sixth rectifying device is in a 'mouth' -shaped structure, the fourth rectifying device is made of metal nickel zinc powder through high-temperature sintering, some medium-frequency interference signals can be filtered, the sixth rectifying device is made of metal nickel zinc powder and manganese zinc powder through high-temperature sintering after being mixed, and some high-frequency interference signals can be filtered. As shown in fig. 6, the fourth rectifying device 6 and the sixth rectifying device 8 are formed by combining an upper rectifying block 6-1 and a lower rectifying block 6-2, the upper rectifying block 6-1 is in a strip structure, the lower rectifying block 6-2 is in a U-shaped structure, two T-shaped through holes are formed in two sides of the bottom surface of the upper rectifying block 6-1, two T-shaped clamping blocks matched with the T-shaped through holes are formed in the upper parts of two sides of the lower rectifying block 6-2, and the upper rectifying block and the lower rectifying block can be firmly and reliably assembled and are convenient to assemble.
In some embodiments, the first deflector 2-1 comprises a first plate, a second plate and a third plate, the first plate and the third plate are parallel, are perpendicular to the second plate and are located on the same side of the second plate, the first plate is inserted into the bottom hole 1-1 and connected with the deflector rod 2-2, and the third plate is located on the surface of the rectifying seat 1 and is fixed with the rectifying seat 1 through a screw.
In some embodiments, as shown in fig. 5, a schematic structure of a grounding cover is shown, on which a fifth welding point 10-1, a first grounding post 10-2, a first pressing post 10-3, a second grounding post 10-4, a second pressing post 10-5 and a third grounding post 10-6 are disposed, the first pressing post 10-3 and the second pressing post 10-5 are in a cylindrical groove stamping structure, respectively press the fourth rectifying device 6 and the sixth rectifying device 8, the first grounding post 10-2, the second grounding post 10-4 and the third grounding post 10-6 are in a cylindrical convex stamping structure, respectively clamp and press the first grounding spring piece, the second grounding spring piece and the third grounding spring piece, the fifth welding point is in a U-shaped bifurcation structure, and respectively fix the fifth welding point and the grounding pin of the first rectifying device through tin welding.
As shown in fig. 7, the second rectifying device 4 is a schematic structural diagram of the second rectifying device 4, and the second rectifying device 4 has an elliptical annular solid structure, and two cylindrical through holes are formed in the middle of the second rectifying device, and the second rectifying device is made of metal manganese zinc powder through high-temperature sintering, so that low-frequency interference signals can be filtered.
In a preferred embodiment, the rectifying device having all of the first to seventh rectifying devices is assembled as follows:
firstly, a first guide plate 2-1 is plugged into a bottom hole of a rectifying seat 1, then a round copper rod is plugged into the round hole and pressed into the round hole of the first guide plate 2-1, laser girth welding is carried out on the round hole from the bottom surface, and then a first rectifying device 3 and a second rectifying device 4 are respectively fixed in a first-order placing space 1-2 and a second-order placing space 1-3 by glue filling and sealing.
Secondly, the upper rectifying block and the lower rectifying block of the fourth rectifying device 6 and the sixth rectifying device 8 are respectively sleeved at the corresponding positions of the second guide plates 2-3 and matched, then the second guide plates 2-3 sleeved with the fourth rectifying device 6 and the sixth rectifying device 8 are placed in the straight grooves 1-5 of the rectifying seat 1, the fourth rectifying device 6 and the sixth rectifying device 8 are fixed by glue, the upper end face of a round copper bar is pressed into the round holes of the second guide plates 2-3, and the round copper bar are fixed together by laser girth welding from the upper face.
And then fixing the third, fifth and seventh rectifying devices at corresponding positions of the rectifying seat 1, and welding and fixing the first, second, third and fourth welding points with positive and negative pins, the first square hole, the second square hole and the third square hole of the first rectifying device respectively by soldering.
Finally, the grounding cover 10 is fixed on the rectifying base 1, and the first, second and third grounding posts are ensured to be respectively contacted and pressed with the first, second and third grounding spring pieces, and the first and second pressing posts press the fourth and sixth rectifying devices, and simultaneously, the grounding pin of the first rectifying device is welded and fixed with the fifth welding point 10-1 of the grounding cover by soldering.
To this end, a driver is assembled with an integrated filter structure.
Claims (10)
1. An integrated filtering structure for a driver comprises a rectifying seat (1), a current carrying piece (2) and a plurality of rectifying devices, wherein the rectifying devices are arranged in a placing space on the rectifying seat (1), the integrated filtering structure is characterized by further comprising a grounding cover (10), the current carrying piece (2) comprises a first guide plate (2-1), a guide rod (2-2) and a second guide plate (2-3),
The rectifying seat (1) is L-shaped, a first-order placing space (1-2) and a second-order placing space (1-3) are arranged on the short arm end, a bottom hole (1-1) for inserting the first guide plate (2-1) is formed in the second-order placing space (1-3), a cylindrical hole (1-4) for placing the guide rod (2-2) is formed in the second-order placing space (1-3), a third-order placing space (1-6), a fourth-order placing space (1-7), a fifth-order placing space (1-8), a sixth-order placing space (1-9) and a seventh-order placing space (1-10) which are sequentially arranged from one side to the other side of the short arm end are arranged on the long arm end, a straight groove (1-5) is used for inserting the second guide plate (2-3), the straight groove (1-5) penetrates through the fourth-order placing space (1-7) and the sixth-order placing space (1-9),
The two ends of the flow guide rod (2-2) are respectively connected with a first flow guide plate (2-1) and a second flow guide plate (2-3), the first flow guide plate (2-1) is connected with rectifying devices arranged in a first-order placing space (1-2) and a second-order placing space (1-3), the second flow guide plate (2-3) is connected with rectifying devices arranged in a third-order placing space (1-6), a fourth-order placing space (1-7), a fifth-order placing space (1-8), a sixth-order placing space (1-9) and a seventh-order placing space (1-10),
The grounding cover (10) is provided with a fifth welding point (10-1) and a plurality of protruding columns, after the grounding cover (10) is covered with the rectifying seat (1), each protruding column is respectively pressed against rectifying devices in a third-order placing space (1-6), a fourth-order placing space (1-7), a fifth-order placing space (1-8), a sixth-order placing space (1-9) and a seventh-order placing space (1-10), the grounding ends of the rectifying devices in the third-order placing space (1-6), the fifth-order placing space (1-8) and the seventh-order placing space (1-10) are connected with the corresponding protruding columns, and the fifth welding point (10-1) is connected with the grounding ends of the rectifying devices in the first-order placing space (1-2).
2. An integrated filter structure for a driver according to claim 1, wherein the first deflector (2-1) is provided with a first welding point (2-1-1), the second deflector (2-3) is provided with a second welding point (2-3-1), a third welding point (2-3-2) and a fourth welding point (2-3-3), the first welding point (2-1-1) is connected with a rectifying device in the first-order placement space (1-2), and the second welding point (2-3-1), the third welding point (2-3-2) and the fourth welding point (2-3-3) are respectively connected with rectifying devices in the third-order placement space (1-6), the fifth-order placement space (1-8) and the seventh-order placement space (1-10).
3. An integrated filter structure for a driver according to claim 2, wherein the first welding point (2-1-1) is in a U-shape and the second welding point (2-3-1), the third welding point (2-3-2) and the fourth welding point (2-3-3) are in a column shape.
4. An integrated filter structure for a drive according to claim 1, characterized in that the second order placement space (1-3) is an elliptical annular groove and the side wall is provided with cylindrical ribs.
5. An integrated filter structure for a drive according to claim 2, wherein the third-order placement space (1-6) is a second square groove located at one side of the straight groove (1-5), the fifth-order placement space (1-8) comprises two fourth square grooves located at both sides of the straight groove (1-5), and the seventh-order placement space (1-10) comprises two sixth square grooves located at both sides of the straight groove (1-5).
6. The integrated filter structure for a drive according to claim 5, wherein a third rectifying device (5) is provided in the third-order placement space (1-6), a fifth rectifying device (7) is provided in the fifth-order placement space (1-8), a seventh rectifying device (9) is provided in the seventh-order placement space (1-10),
The third rectifying device (5) comprises a first X capacitor (5-1) and a first cover plate, the first X capacitor (5-1) is arranged in the second square groove, a first grounding spring piece (5-2) serving as a grounding end, a first welding point passing hole (5-3) for passing a second welding point (2-3-1) and a first pin passing hole for passing a pin of the first X capacitor (5-1) are arranged on the first cover plate,
The fifth rectifying device (7) comprises two first Y capacitors (7-1) and a second cover plate, the two first Y capacitors (7-1) are respectively arranged in the two fourth square grooves, a second grounding spring piece (7-2) serving as a grounding end, a second welding point passing hole (7-3) used for passing a third welding hole and a second pin passing hole used for passing pins of the first Y capacitors (7-1) are arranged on the second cover plate,
The seventh rectifying device (9) comprises two second Y capacitors (9-1) and a third cover plate, the two second Y capacitors (9-1) are respectively arranged in the two sixth grooves, and a third grounding spring piece (9-2) serving as a grounding end, a third welding point passing hole (9-3) for passing through a fourth welding hole and a second pin passing hole for passing through a pin of the second Y capacitor (9-1) are arranged on the third cover plate.
7. The integrated filter structure for a driver according to claim 6, wherein the first grounding spring piece (5-2), the second grounding spring piece (7-2) and the third grounding spring piece (9-2) are all inverted W-shaped.
8. The integrated filter structure for drivers according to claim 6, wherein the first cover plate, the second cover plate and the third cover plate are fixed to the rectifying seat (1) by screws.
9. The integrated filter structure for the driver according to claim 1, wherein a fourth rectifying device (6) is arranged in the fourth-order placement space (1-7), a sixth rectifying device (8) is arranged in the sixth-order placement space (1-9), the fourth rectifying device (6) and the sixth rectifying device (8) are magnetic rings and are arranged around the second guide plate (2-3), the fourth rectifying device (6) and the sixth rectifying device (8) are formed by combining an upper rectifying block (6-1) and a lower rectifying block (6-2), the upper rectifying block (6-1) is of a strip-shaped structure, the lower rectifying block (6-2) is of a U-shaped structure, two T-shaped through holes are formed in two sides of the bottom surface of the upper rectifying block (6-1), and T-shaped clamping blocks matched with the two T-shaped through holes are formed in the upper parts of two sides of the lower rectifying block (6-2).
10. An integrated filter structure for a drive according to claim 1, characterized in that the first deflector (2-1) comprises a first plate, a second plate and a third plate, which are parallel, are perpendicular to the second plate and are located on the same side of the second plate, the first plate is inserted into the bottom hole (1-1) and connected with the deflector rod (2-2), and the third plate is located on the surface of the rectifying seat (1) and is fixed with the rectifying seat (1) by means of screws.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110675409.3A CN115498898B (en) | 2021-06-18 | 2021-06-18 | Integrated filtering structure for driver |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110675409.3A CN115498898B (en) | 2021-06-18 | 2021-06-18 | Integrated filtering structure for driver |
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| CN115498898A CN115498898A (en) | 2022-12-20 |
| CN115498898B true CN115498898B (en) | 2024-05-10 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104760152A (en) * | 2015-03-12 | 2015-07-08 | 广东仕诚塑料机械有限公司 | Screen sieve filter |
| WO2016202240A1 (en) * | 2015-06-16 | 2016-12-22 | 联合汽车电子有限公司 | Electromagnetism-compatible filter |
| CN212573323U (en) * | 2020-08-19 | 2021-02-19 | 上海汽车电驱动有限公司 | Efficient filtering device for motor controller |
-
2021
- 2021-06-18 CN CN202110675409.3A patent/CN115498898B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104760152A (en) * | 2015-03-12 | 2015-07-08 | 广东仕诚塑料机械有限公司 | Screen sieve filter |
| WO2016202240A1 (en) * | 2015-06-16 | 2016-12-22 | 联合汽车电子有限公司 | Electromagnetism-compatible filter |
| CN212573323U (en) * | 2020-08-19 | 2021-02-19 | 上海汽车电驱动有限公司 | Efficient filtering device for motor controller |
Non-Patent Citations (1)
| Title |
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| 矩形储液箱静水压模态仿真分析与材料比选;刘楠;张宏旺;李钟全;方保华;;油气储运;20111130(第11期);全文 * |
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