CN218526296U - Filter of hybrid electric vehicle motor controller and hybrid electric vehicle - Google Patents
Filter of hybrid electric vehicle motor controller and hybrid electric vehicle Download PDFInfo
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- CN218526296U CN218526296U CN202221982923.8U CN202221982923U CN218526296U CN 218526296 U CN218526296 U CN 218526296U CN 202221982923 U CN202221982923 U CN 202221982923U CN 218526296 U CN218526296 U CN 218526296U
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- filter
- copper bar
- filter capacitor
- motor controller
- magnetic ring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
The utility model discloses a filter of hybrid vehicle motor controller and hybrid vehicle, including filter assembly casing, magnetic ring, filter capacitor connect the negative copper bar, filter capacitor connect the positive copper bar, filter capacitor ground copper bar and PCB board; the filter assembling shell is provided with a first end and a second end which are arranged oppositely, the filter assembling shell is hollow to form a bus bar through hole, and the first end part of the filter assembling shell is provided with an annular groove; the magnetic ring is assembled in the annular groove of the filter assembling shell; the PCB is fixed on the second end of the filter assembling shell; the filter capacitor is fixed on the PCB through tin soldering; the filter capacitor is connected with the negative copper bar and the filter capacitor is connected with the positive copper bar and is respectively connected with the filter capacitor; the filter capacitor grounding copper bar is connected with the grounding point of the PCB. The utility model discloses can carry out filtering to disturbing the frequency channel, guarantee that machine controller and vehicle have good electromagnetic compatibility ability.
Description
Technical Field
The utility model belongs to the technical field of new energy automobile's machine controller, concretely relates to hybrid vehicle machine controller's wave filter and hybrid vehicle.
Background
The motor controller is used as a control core of a hybrid electric vehicle driving system, and mainly boosts the direct-current voltage of a battery through a Boost circuit under the control of a single chip microcomputer circuit, and then generates PWM three-phase alternating current required by a driving motor through inversion of an IGBT power control module. However, the high-speed switching frequency of the IGBT can generate relatively large pulse current, so that higher harmonics are superimposed in a high-voltage current loop, and the energy of the higher harmonics is released in the form of conduction and radiation emission, thereby forming electromagnetic interference, and seriously affecting the normal operation of the motor controller and peripheral systems.
Therefore, it is necessary to develop a new filter for a motor controller of a hybrid vehicle and a hybrid vehicle.
Disclosure of Invention
An object of the utility model is to provide a hybrid vehicle machine controller's wave filter and hybrid vehicle can carry out the filtering to the interference frequency channel to guarantee that machine controller and vehicle have good electromagnetic compatibility performance.
In a first aspect, the utility model discloses a filter of hybrid vehicle motor controller, including filter assembly casing, magnetic ring, filter capacitor connect the negative copper bar, filter capacitor connect the positive copper bar, filter capacitor ground copper bar and PCB board;
the filter assembling shell is provided with a first end and a second end which are oppositely arranged, the filter assembling shell is hollow to form a bus bar through hole, and the first end part of the filter assembling shell is provided with an annular groove;
the magnetic ring is assembled in the annular groove of the filter assembling shell;
the PCB is fixed on the second end of the filter assembling shell;
the filter capacitor is fixed on the PCB through tin soldering;
the filter capacitor is connected with the negative copper bar and the filter capacitor is connected with the positive copper bar and is respectively connected with the filter capacitor;
and the filter capacitor grounding copper bar is connected with the grounding point of the PCB.
When the electromagnetic filter is used, the positive and negative copper bars of the motor controller busbar pass through the central hole of the magnetic ring, and the magnetic ring generates impedance to electromagnetic higher harmonics in the motor controller busbar, so that the energy of the electromagnetic higher harmonics is weakened, the radiation emission and the conduction emission energy of the electromagnetic higher harmonics are reduced, and the purpose of filtering is achieved.
Optionally, the magnetic ring is made of an ultracrystalline material, and in order to avoid reduction of filtering performance of the magnetic ring due to overlarge stress in the assembling and using processes, a gap is formed between the magnetic ring and the filter assembling shell and the magnetic ring is fixed by silica gel in a sealing mode so as to eliminate the stress and protect the magnetic ring.
Optionally, a gap between the magnetic ring and the filter assembling housing ranges from 0.2mm to 1.2mm.
Optionally, the magnetic ring cover plate is fastened at the opening of the annular groove.
Optionally, the volume range of the magnetic ring is 10cm 3 ～20cm 3 Compared with the traditional ferrite magnetic ring, the volume of the magnetic ring made of the ultracrystalline is only one third of that of the latter, the weight is less than one half of that of the latter, the filtering performance is superior to that of the latter, and the cost is lower than that of the latter.
Optionally, the filter capacitor includes at least one pair of common mode filter capacitors, and the common mode filter capacitor includes an X capacitor and a Y capacitor. The filter capacitor has the characteristics of alternating current resistance, direct current resistance and high frequency group low frequency connection, and the motor controller bus bar and the positive electrode copper bar and the negative electrode copper bar are connected with the ground by the filter capacitor, so that common mode electromagnetic interference energy in the positive electrode copper bar and the negative electrode copper bar of the motor controller bus bar is discharged into the ground, radiation emission and conduction emission energy in a loop are reduced, and the purpose of filtering is achieved.
Optionally, a filter mounting hole is formed in the filter assembling shell, the filter capacitor grounding copper bar extends to one of the filter mounting holes, and a copper bar mounting hole is formed in the filter capacitor grounding copper bar at a position corresponding to the filter mounting hole; when the filter is used, the copper bar mounting hole and the filter mounting hole are sequentially penetrated through bolts to be connected with the shell of the motor controller. The filter capacitor grounding copper bar is led out from the PCB to the filter mounting hole, and then is connected with the shell of the motor controller through a bolt, so that grounding is realized.
In a second aspect, a hybrid vehicle, adopt like hybrid vehicle machine controller's wave filter.
The utility model has the advantages of it is following: when the electromagnetic filter is used, the positive and negative copper bars of the motor controller busbar pass through the central hole of the magnetic ring, and the magnetic ring generates impedance to electromagnetic higher harmonics in the motor controller busbar, so that the energy of the electromagnetic higher harmonics is weakened, the radiation emission and the conduction emission energy of the electromagnetic higher harmonics are reduced, and the purpose of filtering is achieved. The utility model provides a compact structure, low-cost, high performance's hybrid vehicle machine controller's wave filter can guarantee that machine controller and vehicle have good electromagnetic compatibility ability.
Drawings
FIG. 1 is a schematic structural diagram of a filter of a motor controller of a hybrid electric vehicle according to the present embodiment;
FIG. 2 is an analysis diagram of a filter of a motor controller of a hybrid vehicle according to the present embodiment;
fig. 3 is a sectional view of the filter mount case in the present embodiment;
in the figure: 1-a filter assembly housing; 11-filter mounting holes; 12-PCB mounting points; 13-bus bar through holes; 14-an annular groove;
2-a magnetic ring; 3-a magnetic ring cover plate; 4-a filter capacitor; 5-M3 screw; 6-connecting a filter capacitor with a negative copper bar; 7-the filter capacitor is connected with the positive copper bar; 8-a filter capacitor grounding copper bar; 81-copper bar mounting holes; 9-PCB board.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 3, in the present embodiment, a filter of a hybrid vehicle motor controller includes a filter assembling housing 1, a magnetic ring 2, a magnetic ring cover plate 3, a filter capacitor 4, an M3 screw 5, a filter capacitor negative copper bar 6, a filter capacitor positive copper bar 7, a filter capacitor ground copper bar 8, and a PCB 9. The filter assembling shell 1 is provided with a first end and a second end which are oppositely arranged, the filter assembling shell 1 is hollow to form a bus bar through hole 13, and a positive electrode bus bar and a negative electrode bus bar for a power supply machine controller penetrate through the bus bar through hole 13 of the filter assembling shell 1. An annular groove 14 is arranged on the first end part of the filter assembling shell 1; the magnetic ring 2 is assembled in the annular groove 14 of the filter assembling shell 1 and is buckled on the annular groove 14 through the magnetic ring cover plate 3 for sealing. The PCB board 9 is fixed to the second end of the filter mounting housing 1 by two M3 screws 5. The filter capacitor 4 is fixed on the PCB 9 by soldering. And the filter capacitor negative copper bar 6 and the filter capacitor positive copper bar 7 are respectively connected with the filter capacitor 4. And the filter capacitor grounding copper bar 8 is connected with the grounding point of the PCB 9.
When the filter assembling shell is used, a positive busbar and a negative busbar of the motor controller respectively penetrate through the busbar through hole 13 of the filter assembling shell 1. And then, connecting the filter capacitor with the negative copper bar 6 and connecting the filter capacitor with the positive copper bar 7 to be correspondingly connected with the positive copper bar and the negative copper bar of the motor controller bus respectively, and fixing the filter capacitor with the negative copper bar and the positive copper bar through M4 bolts. And connecting the filter capacitor grounding copper bar 8 with the shell of the motor controller through an M4 bolt to realize grounding.
Because the positive and negative copper bars of the motor controller busbar pass through the central hole of the magnetic ring 2, the magnetic ring 2 is utilized to generate impedance to electromagnetic higher harmonics in the motor controller busbar, and the energy of the electromagnetic higher harmonics is weakened, so that the radiation emission and conduction emission energy of the electromagnetic higher harmonics are reduced, and the purpose of filtering is achieved.
As shown in fig. 1 and fig. 2, in this embodiment, the magnetic ring 2 is made of an ultra-microcrystalline material, so as to avoid a reduction in filtering performance of the magnetic ring 2 caused by an excessive stress during assembly and use, a gap is provided between the magnetic ring 2 and the filter assembly housing 1, the gap is in a range of 0.2mm to 1.2mm, and the gap is fixed by potting with silica gel to eliminate the stress and protect the magnetic ring 2.
In this embodiment, the volume range of the magnetic ring 2 is 10cm 3 ～20cm 3 Compared with the traditional ferrite magnetic ring, the magnetic ring 2 made of ultracrystalline has the volume of only one third of the latter, the weight of less than one half of the latter, the filtering performance is superior to the latter, and the cost is lower than the latter.
As shown in fig. 1 and fig. 2, in the present embodiment, the filter capacitor 4 includes at least one pair of common-mode filter capacitors, and the common-mode filter capacitors include an X capacitor and a Y capacitor, and have a capacitance value range of 180nF to 260nF. The filter capacitor 4 has the characteristics of alternating current resistance, direct current resistance and high frequency group low frequency, and the motor controller busbar positive and negative copper bars are connected with the ground by the filter capacitor 4, so that common mode electromagnetic interference energy in the motor controller busbar positive and negative copper bars is discharged into the ground, radiation emission and conduction emission energy in a loop are reduced, and the purpose of filtering is achieved.
The number of the filter capacitors 4 and the capacitance value thereof need to be selected according to the actual filtering requirements of the motor controller project, and no matter how many X capacitors and Y capacitors are adopted for filtering, the filter capacitors can be installed in a PCB (printed circuit board) integrated mode.
As shown in fig. 1 to fig. 3, in this embodiment, a filter mounting hole 11 is formed in the filter assembling housing 1, the filter capacitor ground copper bar 8 extends to one of the filter mounting holes 11, and a copper bar mounting hole 81 is formed in a position, corresponding to the filter mounting hole 11, on the filter capacitor ground copper bar 8. When the filter is used, the copper bar mounting hole 81 and the filter mounting hole 11 are sequentially penetrated through bolts to be connected with the shell of the motor controller. The filter capacitor grounding copper bar 8 is led out from the PCB 9 to the filter mounting hole 11, and then is connected with the shell of the motor controller through a bolt, so that grounding is realized.
In this embodiment, a hybrid electric vehicle adopts the filter of the hybrid electric vehicle motor controller as described in this embodiment.
The above embodiments are preferred embodiments of the method of the present invention, but the method of the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (8)
1. The utility model provides a hybrid vehicle motor controller's wave filter which characterized in that: the filter comprises a filter assembling shell (1), a magnetic ring (2), a filter capacitor (4), a filter capacitor negative copper bar (6), a filter capacitor positive copper bar (7), a filter capacitor grounding copper bar (8) and a PCB (9);
the filter assembling shell (1) is provided with a first end and a second end which are oppositely arranged, the filter assembling shell (1) is hollow to form a bus bar through hole (13), and a ring-shaped groove (14) is arranged at the first end part of the filter assembling shell (1);
the magnetic ring (2) is assembled in an annular groove (14) of the filter assembly shell (1);
the PCB (9) is fixed on the second end of the filter assembly shell (1);
the filter capacitor (4) is fixed on the PCB (9) through soldering;
the filter capacitor negative electrode copper bar (6) and the filter capacitor positive electrode copper bar (7) are respectively connected with the filter capacitor (4);
and the filter capacitor grounding copper bar (8) is connected with a grounding point of the PCB (9).
2. The filter of a hybrid vehicle motor controller according to claim 1, characterized in that: the magnetic ring (2) is made of an ultracrystalline material, and a gap is formed between the magnetic ring (2) and the filter assembling shell (1) and is fixed through silica gel encapsulation.
3. The filter of the motor controller for a hybrid vehicle according to claim 2, characterized in that: the clearance range between the magnetic ring (2) and the filter assembling shell (1) is 0.2 mm-1.2 mm.
4. The filter of the motor controller for a hybrid vehicle according to any one of claims 1 to 3, characterized in that: the magnetic ring cover plate (3) is buckled at the opening of the annular groove (14).
5. The filter of a hybrid vehicle motor controller according to claim 4, characterized in that: the volume range of the magnetic ring (2) is 10cm 3 ～20cm 3 。
6. The filter of a hybrid vehicle motor controller according to claim 1 or 2 or 3 or 5, characterized in that: the filter capacitor (4) comprises at least one pair of common-mode filter capacitors, and the common-mode filter capacitors comprise X capacitors and Y capacitors.
7. The filter of a hybrid vehicle motor controller according to claim 6, characterized in that: be equipped with wave filter mounting hole (11) on wave filter assembly casing (1), filter capacitor ground connection copper bar (8) extend to one of them wave filter mounting hole (11) department, and copper bar mounting hole (81) have been seted up with wave filter mounting hole (11) corresponding position department on filter capacitor ground connection copper bar (8).
8. A hybrid vehicle, characterized in that: a filter using the motor controller for a hybrid vehicle according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221982923.8U CN218526296U (en) | 2022-07-29 | 2022-07-29 | Filter of hybrid electric vehicle motor controller and hybrid electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221982923.8U CN218526296U (en) | 2022-07-29 | 2022-07-29 | Filter of hybrid electric vehicle motor controller and hybrid electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218526296U true CN218526296U (en) | 2023-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221982923.8U Active CN218526296U (en) | 2022-07-29 | 2022-07-29 | Filter of hybrid electric vehicle motor controller and hybrid electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218526296U (en) |
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2022
- 2022-07-29 CN CN202221982923.8U patent/CN218526296U/en active Active
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