CN208445435U - A kind of built-in EMC of electric machine controller inhibits device and motor controller casing - Google Patents
A kind of built-in EMC of electric machine controller inhibits device and motor controller casing Download PDFInfo
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- CN208445435U CN208445435U CN201821262260.6U CN201821262260U CN208445435U CN 208445435 U CN208445435 U CN 208445435U CN 201821262260 U CN201821262260 U CN 201821262260U CN 208445435 U CN208445435 U CN 208445435U
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- magnet ring
- copper bar
- emc
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- electric machine
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Abstract
The utility model discloses a kind of built-in EMC of electric machine controller and inhibits device and motor controller casing, EMC inhibits device to be connected between the bus capacitor in the total positive and negative connector and enclosure body of enclosure body outer wall, it include: to be installed between the positive and negative copper bar of inlet wire and shell ground, for the port filter band of filtering common mode and DM EMI waveform, port filter band is equipped with X capacitor, Y capacitance I, Y capacitance II；For wearing the magnet ring of positive and negative copper bar, magnet ring is located on magnet ring support base and is fixed by magnet ring hoop.The rational design moved towards by copper bar, high magnetic permeability crystallite magnet ring and capacitor filtering plate are reliably connected with existing conducting copper, nearby inhibits high-voltage end EMC electromagnetic interference, solves the problems, such as complete machine EMC, and can save system arrangement space, reduce controller cost.
Description
Technical field
The utility model relates to electric vehicle motor controller, in particular to a kind of EMC suppression for being built in electric machine controller
Device processed and structure and its power system of electric automobile of application.
Background technique
The core technology of the dynamical system of electric car includes battery pack and attached battery management system；Connect power battery
With the high voltage power distribution unit of electric machine controller, vehicle-mounted DC/DC, charger, cold-hot wind air-conditioning system etc.；And electric machine controller and
The driving power assembly of driving motor composition.The power electrification of electric car leads to a variety of high-power frequency conversions, unsteady flow dress
The electromagnetic interference harmonic wave cross influence for generating different frequency range and amplitude at work is set, vehicle electronics is influenced in some cases and sets
Standby normal work, or even influence the safe operation of vehicle.
At present generally, to meet Electromagnetic Compatibility for Electric Vehicles EMC laws and regulations requirement, good shell, line are generallyd use
Beam, connector screening and ground connection are one of the technical essentials for solving the problems, such as vehicle electric power transmission line EMC.But only rely on band
The conducting wire and connector of function of shielding can not inhibit well by high power contravariant equipments such as electric machine controllers in power transmission
Caused conduct radiation noise on route generally requires that additional filter progress EMC is added on the line or in inverter
Processing, the EMC of usual this external inhibit device in filter effect, Material Cost, installation space and can be engineered
It can not all ensure.
Therefore, design it is a kind of meet EMC limitation and require, have a reliable and stable filter effect, cost and volume are acceptable,
It is EMC design in multi-functional integrated type electric machine controller development process that the EMC inside electric machine controller, which can be built in, to inhibit device
Need urgent problem.
Summary of the invention
The utility model proposes a kind of built-in EMC rejects trap design schemes of Novel motor controller, pass through copper bar
High magnetic permeability crystallite magnet ring and capacitor filtering plate are reliably connected by the rational design of trend with existing conducting copper, nearby will be high
Pressure side EMC electromagnetic interference is inhibited, and solves the problems, such as complete machine EMC, and can save system arrangement space, reduces controller cost.
The utility model uses following technology:
A kind of built-in EMC inhibition device of electric machine controller, which is characterized in that described device is connected to enclosure body outer wall
Total positive and negative connector and enclosure body in bus capacitor between, comprising:
It is installed between the positive and negative copper bar of inlet wire and shell ground, is filtered for the port of filtering common mode and DM EMI waveform
Plate, port filter band are equipped with X capacitor, Y capacitance I, Y capacitance II；
For wearing the magnet ring of positive and negative copper bar, magnet ring is located on magnet ring support base and is fixed by magnet ring hoop.
As further limiting, the X capacitor is connected across the total negative copper bar one and total positive copper bar for connecting total positive and negative connector
Between one, Y capacitance I is connected between total positive copper bar one and ground connection copper post, and Y capacitance II is connected to total negative copper bar one and ground connection copper post
Between, ground connection copper post with shell is connect.
As further limiting, the magnet ring support base is bakelite material, steady by four bolts and enclosure body bottom plate
There are groove milling, groove milling shape and magnet ring outer-diameter circular arc Curvature Matching, magnet ring >=2, string in fixed connection, magnet ring support base upper surface
Connection arrangement, the total height after series connection are matched with the groove milling length of magnet ring support base upper surface.
As further limiting, be equipped with total positive copper bar three and total negative copper bar one in the magnet ring, total positive copper bar three with it is total
Negative one lamination of copper bar passes through the placement centre bore of magnet ring parallel, the appearance of total positive copper bar three and total negative one lamination parallel section of copper bar
Face is covered with insulation layer of silica gel.
As further limiting, total negative copper bar one passes sequentially through total negative copper bar two, cathode confluence copper after passing through magnet ring
Row is connected to bus capacitor negative pole end, and total positive three one end of copper bar is directly connected with bus capacitor positive terminal after passing through magnet ring, always just
Three other end of copper bar connects total positive copper bar one by total positive copper bar two.
As further limiting, total positive three other end of copper bar also connects D.C. contactor.
As further limiting, after total negative copper bar one passes through magnet ring, Hall current is installed on total negative copper bar one
Sensor, Hall current sensor are located in sensor base.
As further limiting, the magnet ring is amorphous and nano-crystal soft magnetic alloy magnetic material magnet ring or high magnetic permeability iron
Oxysome alloy magnetic material magnet ring.
As further limiting, the magnet ring hoop inner surface and magnet ring contact portion post buffering foam cushion.
A kind of motor controller casing, the enclosure body including having controller upper cover, which is characterized in that further include described
Built-in EMC inhibit device.
The utility model the utility model has the advantages that
1, the rational design moved towards by copper bar, by high magnetic permeability crystallite magnet ring and capacitor filtering plate and existing conducting copper
It is reliably connected, nearby inhibits high-voltage end EMC electromagnetic interference；Electromagnetic interference can be effectively suppressed, solving the problems, such as complete machine EMC
On the basis of, system arrangement space is saved, controller cost is reduced；
2, total positive and negative connecting terminal is that electric machine controller high voltage direct current inputs end, is drawn by power battery pack high-voltage end, is
Electric machine controller provides electric energy, while being also to cause electromagnetism since the switch copped wave of device for power switching acts in electric machine controller
Interfere main leak ports, the utility model innovation near general high voltage battery pack and electric machine controller connectivity port,
By the optimization of the design and installation position of conducting copper inside controller, electromagnetic wave suppressor part high magnetic permeability magnet ring is realized
With installation and effective grounding with X, Y capacitance port filter band, the EMC electromagnetic wave inhibitory effect of high pressure port is realized；
3, the built-in EMC of such electric machine controller inhibits apparatus structure simple and compact, passes through reasonable magnet ring and capacitor
Parameter setting can effectively realize electric machine controller high voltage bus interference electromagnetic wave external conduction and radiation-emitting；
4, the filter that magnet ring and capacitor form compared with general additional external filter device terminal box is closer to dry
Source is disturbed, it is more preferable according to electro magnetic field electromagnetic wave principle and practical contrast test, filter effect；
5, the installation and fixation of magnet ring and port filter band is installed mainly by existing power current copper bar by riveting
Metallic conduction post, increases magnet ring support base and magnet ring hoop realizes reliable and stable, the good structure installation of shock resistance, layout
Rationally, small in size, it is easy for installation, it is portable strong the advantages that.
Detailed description of the invention
Fig. 1 is the utility model structure diagram one.
Fig. 2 is the utility model structure diagram two.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.
Based on the basic principle of embodiment in the application, without making creative work it is obtained it is all its
His embodiment, shall fall within the protection scope of the present application.
As shown in Figure 1 and 2, the utility model provides a kind of built-in EMC inhibition device of electric machine controller, in controller
Interior relative positional relationship and device distribution situation.Controller monoblock type die casting cabinet, including enclosure body 3 and controller upper cover 5.
Box house in addition to built-in EMC is presented in such as figure inhibit the relevant part of device other than, there are also not shown but to realize that motor control must
Other relevant portions needed.
The built-in EMC inhibition device of electric machine controller is connected to the total positive and negative connector 2 and shell sheet of 3 outer wall of enclosure body
Between bus capacitor 4 in body 3, comprising: be installed between the positive and negative copper bar of inlet wire and shell ground, be dry for filtering common mode and differential mode
Disturb the port filter band 10 of waveform and the magnet ring 13 for wearing positive and negative copper bar.
Port filter band 10 is equipped with X capacitor 101, Y capacitance I 102, Y capacitance II 103；X capacitor 101 is connected across connection
Between total negative copper bar 1 of total positive and negative connector 2 and total positive copper bar 1, Y capacitance I 102 is connected to one 19 He of total positive copper bar
It is grounded between copper post 12, Y capacitance II 103 is connected between total negative copper bar 1 and ground connection copper post 12, is grounded copper post 12 and shell
Ground connection.X capacitor 101 on filter band 10 can effectively inhibit DM EMI, and Y capacitance I 102 and Y capacitance II 103 can have
Effect inhibits common mode interference.
The fixation of magnet ring 13 realized by external support fastening structure, the magnet ring support base 14 and enclosure body of bakelite material
3 bottom plates are stably connected with by four bolts, and 14 upper surface groove milling shape of magnet ring support base and 13 outer-diameter circular arc curvature of magnet ring are coincide,
Groove milling length is placed in series with two magnet rings 13 and is identical, and magnet ring 13 can accurately be placed in submounts, without generating
The displacement of " X ", the direction " Y ", fixation on the direction " Z " by 15 crimp of magnet ring hoop of metal material in 13 upper surface of magnet ring, four
Bolt is connect with support base 14, is to reduce high-frequency vibration to the impact injury of magnet ring 13, in 15 inner surface of magnet ring hoop and magnetic
13 contact portion of ring posts 3M buffering foam cushion.
13 part of magnet ring, total positive 3 16 one end of copper bar are connected with contactor 17, and the other end is after the bending forming of " Z " font
The placement centre bore for passing through magnet ring 13 parallel with total negative one 11 lamination of copper bar, forms common mode choke form, considers to insulate
Total positive and negative copper bar close part surface is criticized respectively is covered with insulation layer of silica gel.
Total negative copper bar 1 passes sequentially through total negative copper bar 27 after passing through magnet ring 13, cathode confluence copper bar 6 is connected to bus electricity
Hold 4 negative pole ends, total positive 3 16 one end of copper bar is directly connected with 4 positive terminal of bus capacitor after passing through magnet ring 13, is provided for inverter
Energy.Total positive 3 16 other end of copper bar passes through total positive total positive copper bar 1 of the connection of copper bar 2 18.
High pressure anode is entered behind 3 inside of enclosure body by total positive and negative connector 2 respectively by total positive copper bar 1, total cupric
It arranges 2 18 and always Manual maintenance switch 1 and contactor 17 is together in series by positive copper bar 3 16, realize loop of power circuit logically function
It can be with the division of maintenance needs.
After total negative copper bar 1 passes through magnet ring 13, Hall current sensor 8, Hall electricity are installed on total negative copper bar 1
Flow sensor 8 is located in sensor base 9, for acquiring power generatrix total current.
Magnet ring 13 is amorphous and nano-crystal soft magnetic alloy magnetic material magnet ring or high magnetic conductivity ferrite alloy magnetic material
Magnet ring.
A kind of motor controller casing not only inhibits device comprising the built-in EMC, further includes on controller
The enclosure body 3 of lid 5.
Electric machine controller high voltage bus EMC is inhibited device by the utility model embodiment, is built in motor controller casing
It is interior, between total positive and negative connector and bus capacitor.It is matched by the parameter of EMC filter capacitor and magnet ring, close to the peace of interference source
The equal measures parallel of the lamination of dress mode and positive and negative copper bar, avoid antenna effect caused by high current ring, while can be effective
Inhibit conduction and radiation-emitting of the interference of the high frequency E MC due to caused by power device switch motion by high voltage direct current circuit.
Claims (10)
1. a kind of built-in EMC of electric machine controller inhibits device, which is characterized in that described device is connected to enclosure body (3) outside
Between bus capacitor (4) in total positive and negative connector (2) of wall and enclosure body (3), comprising:
It is installed between the positive and negative copper bar of inlet wire and shell ground, the port filter band for filtering common mode and DM EMI waveform
(10), port filter band (10) be equipped with X capacitor (101), Y capacitance I(102), Y capacitance II(103)；
For wearing the magnet ring (13) of positive and negative copper bar, magnet ring (13) is located on magnet ring support base (14) and by magnet ring hoop (15)
It is fixed.
2. the built-in EMC of electric machine controller according to claim 1 inhibits device, which is characterized in that the X capacitor
(101) it is connected across between the total negative copper bar one (11) for connecting total positive and negative connector (2) and total positive copper bar one (19), Y capacitance I
(102) it is connected between total positive copper bar one (19) and ground connection copper post (12), Y capacitance II(103) it is connected to total negative copper bar one (11)
Between ground connection copper post (12), ground connection copper post (12) with shell is connect.
3. the built-in EMC of electric machine controller according to claim 1 inhibits device, which is characterized in that the magnet ring support
Seat (14) is bakelite material, is connect by four bolts with enclosure body (3) base slab stability, magnet ring support base (14) upper surface has
Groove milling, groove milling shape and magnet ring (13) outer-diameter circular arc Curvature Matching, the magnet ring (13) >=2, arranged in series are total after series connection
Height is matched with the groove milling length of magnet ring support base (14) upper surface.
4. the built-in EMC of electric machine controller according to claim 2 inhibits device, which is characterized in that the magnet ring (13)
In be equipped with total positive copper bar three (16) and total negative copper bar one (11), total positive copper bar three (16) and always negative copper bar one (11) lamination is parallel
Across the placement centre bore of magnet ring (13), the outer surface of total positive copper bar three (16) and total negative copper bar one (11) lamination parallel section is equal
It is covered with insulation layer of silica gel.
5. the built-in EMC of electric machine controller according to claim 4 inhibits device, which is characterized in that total negative copper bar
One (11) pass sequentially through total negative copper bar two (7) after passing through magnet ring (13), cathode confluence copper bar (6) is connected to bus capacitor (4) and bears
Extremely, total positive copper bar three (16) one end passes through magnet ring (13) and directly connects afterwards with bus capacitor (4) positive terminal, total positive copper bar three
(16) other end passes through total positive total positive copper bar one (19) of copper bar two (18) connection.
6. the built-in EMC of electric machine controller according to claim 5 inhibits device, which is characterized in that total positive copper bar
Three (16) other ends also connect D.C. contactor (17).
7. the built-in EMC of electric machine controller according to claim 4 inhibits device, which is characterized in that total negative copper bar
After one (11) pass through magnet ring (13), Hall current sensor (8), Hall current sensor are installed on total negative copper bar one (11)
(8) it is located on sensor base (9).
8. the built-in EMC of electric machine controller according to claim 1 inhibits device, which is characterized in that the magnet ring (13)
For amorphous and nano-crystal soft magnetic alloy magnetic material magnet ring or high magnetic conductivity ferrite alloy magnetic material magnet ring.
9. the built-in EMC of electric machine controller according to claim 1 inhibits device, which is characterized in that the magnet ring hoop
(15) inner surface and magnet ring (13) contact portion post buffering foam cushion.
10. a kind of motor controller casing, the enclosure body (3) including having controller upper cover (5), which is characterized in that also wrap
It includes the built-in EMC of electric machine controller as described in any one of claim 1 ~ 9 and inhibits device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821262260.6U CN208445435U (en) | 2018-08-07 | 2018-08-07 | A kind of built-in EMC of electric machine controller inhibits device and motor controller casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821262260.6U CN208445435U (en) | 2018-08-07 | 2018-08-07 | A kind of built-in EMC of electric machine controller inhibits device and motor controller casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208445435U true CN208445435U (en) | 2019-01-29 |
Family
ID=65086333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821262260.6U Expired - Fee Related CN208445435U (en) | 2018-08-07 | 2018-08-07 | A kind of built-in EMC of electric machine controller inhibits device and motor controller casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208445435U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110391789A (en) * | 2019-07-30 | 2019-10-29 | 北京光华世通科技有限公司 | A kind of high current automobile filter |
| CN111490323A (en) * | 2020-05-13 | 2020-08-04 | 合肥巨一动力系统有限公司 | Integrated bus EMC filtering structure |
| CN112187038A (en) * | 2020-10-26 | 2021-01-05 | 无锡中汇汽车电子科技有限公司 | Integrated EMI filter for electric vehicle motor controller |
| CN113300588A (en) * | 2021-05-25 | 2021-08-24 | 重庆金康动力新能源有限公司 | High-voltage filter |
| CN114520617A (en) * | 2020-11-20 | 2022-05-20 | 上海汽车电驱动有限公司 | Six-phase motor drive controller for electric automobile |
| CN114583896A (en) * | 2022-03-10 | 2022-06-03 | 嘉兴学院 | Switched reluctance motor with good anti-electromagnetic interference effect |
-
2018
- 2018-08-07 CN CN201821262260.6U patent/CN208445435U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110391789A (en) * | 2019-07-30 | 2019-10-29 | 北京光华世通科技有限公司 | A kind of high current automobile filter |
| CN111490323A (en) * | 2020-05-13 | 2020-08-04 | 合肥巨一动力系统有限公司 | Integrated bus EMC filtering structure |
| CN111490323B (en) * | 2020-05-13 | 2021-06-25 | 合肥巨一动力系统有限公司 | Integrated bus EMC filtering structure |
| CN112187038A (en) * | 2020-10-26 | 2021-01-05 | 无锡中汇汽车电子科技有限公司 | Integrated EMI filter for electric vehicle motor controller |
| CN112187038B (en) * | 2020-10-26 | 2024-06-04 | 无锡中汇汽车电子科技有限公司 | Integrated EMI filter for electric automobile motor controller |
| CN114520617A (en) * | 2020-11-20 | 2022-05-20 | 上海汽车电驱动有限公司 | Six-phase motor drive controller for electric automobile |
| CN113300588A (en) * | 2021-05-25 | 2021-08-24 | 重庆金康动力新能源有限公司 | High-voltage filter |
| CN114583896A (en) * | 2022-03-10 | 2022-06-03 | 嘉兴学院 | Switched reluctance motor with good anti-electromagnetic interference effect |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190129 Termination date: 20210807 |