CN204145193U - The electromagnetic-field-shielded system of electric vehicle motor controller - Google Patents
The electromagnetic-field-shielded system of electric vehicle motor controller Download PDFInfo
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- CN204145193U CN204145193U CN201420282762.0U CN201420282762U CN204145193U CN 204145193 U CN204145193 U CN 204145193U CN 201420282762 U CN201420282762 U CN 201420282762U CN 204145193 U CN204145193 U CN 204145193U
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- busbar
- outer shield
- water tank
- cooling water
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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
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
A kind of electromagnetic-field-shielded system of electric vehicle motor controller, in outer shield inside, multiple power source surge protector and holding wire are installed, control circuit protector, reach unloading and absorb outside highfield on the outer shield of electric vehicle motor controller, on power line, on holding wire, with the electric current that cooling water tank induces, make electric vehicle motor controller internal electronic device can not be subject to the destruction of outside strong-electromagnetic field, reach the requirement that protection electric automobile travels by designing requirement safety high speed, it is temperature-resistant that cooling water temperature system can make electric automobile run electric vehicle motor controller under lasting climbing or heavy load.The portion of techniques basis that above technology has made electric automobile possess can to widely popularize, electric automobile can replace after wideling popularize existing with gasoline and diesel oil for fuel automobile, environmental pollution is administered at all.
Description
Technical field
The utility model relates to technical field of motors, particularly a kind of electromagnetic-field-shielded system preventing electric vehicle motor controller to be subject to the electric vehicle motor controller of extraneous strong-electromagnetic field interference.
Background technology
One, in electric automobile, electric machine controller is that the alternating current electricity consumption of the powered by direct current and motor realizing battery converts, the critical component that the driving realizing motor runs, belong to the core power parts of electric automobile, it must continue reliable operation, existing electric machine controller is of a great variety, but arrangement is similar, some problems are deposited in reliability and durability checking, such as driver module poor heat radiation, affect IGBT (Insulated Gate Bipolar Transistor), insulated gate bipolar transistor) life-span and entire system efficiency, controller integral sealing is not in place, works long hours and more or less have drainage under adverse circumstances, fail between control board and drive plate to isolate very well, Electro Magnetic Compatibility is poor.Especially severe be the outside of existing electric vehicle motor controller only have one deck very thick metal shell, after being subject to extraneous strong-electromagnetic field interference, electromagnetic field reaches magnetic saturation instantaneously on metal shell, after electromagnetic field breaks through metal shell, moment just attacks the key electronic device in electric vehicle motor controller integrated circuit, make electric machine controller cisco unity malfunction, make driving motor for electric automobile generation traffic accident out of hand.
Two, three aspects of Spark gap
2.1 shieldings: shielding is the transmission utilizing shield to stop or reduce electromagnetic energy, reaches a kind of important means of electromagnetic protection, and this shield does not allow electromagnetic field arrive protected equipment.
2.2 ground connection: grounding is connected with the earth by suitable method and access by electronic equipment, to improve the stability of electronic device circuitry system works, effectively suppress the impact of external electromagnetic field, the interference avoiding casing to cause because of the too much guiding discharge of charge accumulated and damage.
2.3 filters: filter passive or active device can form selective network by resistance, inductance, electric capacity one class, pass through to stop all the other compositions outside useful band, complete filter action, also can be made up of ferrite one class lossy material, by it, undesirable frequency content is sponged, reach the effect of filtering.(list of references: Sun Yongjun " electromagnetic pulse principle and protection thereof " " space electronic technology " the 3rd phase in 2004)
Three, international state-of-the-art power source surge protector (SPD); Holding wire, control circuit protector (SPD) technology introduction: existing (hereinafter referred to as S series of products) series of power Surge Protector (SPD); Holding wire, control circuit protector (SPD) product are the purification of world-leading electric power, precision instrument protection, power surge filtering protection product.The patented technology of its sinusoidal wave tracking filter and special chemical encapsulation, comprises surge protection and filtering technique, meets very much the technical requirement of Spark gap.S series surge filtering product has following advantage:
3.1 multistage protection mechanism, residual voltage can reach OV.Through the surge voltage of water conservancy diversion generally between 2.5KV ~ 15KV, the SPD product be equipped with after multistage protection, should reach extremely low residual voltage, and special industry can reach 0 volt.The general surge protection product in market, maximum through-flow 40KA, GB residual voltage value is 1800.S product 40KA impacts, and residual voltage value is less than 600V.Residual voltage is less, and protected effect is better.Under 8/20us simulates thunder and lightning test environment, charging voltage 24.9KV, current peak 47.8KA, residual voltage value 551V, far below home products residual voltage value.
3.2 response speeds were less than for 1 nanosecond, and shove Transient Voltage Suppressor (being called for short TVS) for effective protection secondary thunder, induced lightening and electric inside.The TVS diode response time was less than for 1 nanosecond.The piezo-resistance response speed that other surge protection product adopts was 25 nanoseconds.TVS advantage is: bidirectional protective characteristic, response speed fast (nanosecond order), absorb surge power large (transient power reaches thousands of watts), clamping voltage is easy to control, leakage current is low, little without damage limit, volume.
3.3 shells adopt NEMA 4 standard, waterproof, fire prevention, explosion-proof, antistatic.
The sinusoidal wave 0RN tracking technique of 3.4 patents, accurately eliminates surge, humorous wave energy.Traditional product adopts to descend traditionally the filtering of clamp-type threshold values, and pressure-sensitive characteristic is the conducting over the ground when voltage reaches threshold values, thus reaches the object of leakage current.S product adopts the sinusoidal wave tracking filter of patented technology enhancement mode ORN, by the positive and negative excursion percentage of certain sine wave, follow the tracks of and eliminate surge " stolen goods electricity ", purification power utilization environment, and residual voltage value is very low.In computer communication system, electronic equipment, electromagnetic pulse by conductive lines in circuit, in the energy conduction to equipment of product overvoltage in the line thus interference, damage equipment.During conductive lines, energy shows as overvoltage.ORN filtering technique, resists scope by tracking technique filtering, ensures " cleaning " of power supply, signal, makes computer system, electronic equipment etc. avoid interference and the damage of electromagnetic pulse.
3.5 unique chemistry encapsulation patented technologies, ensure the unfailing performance that device is lasting, the voltage tester of 500V, does not have the MOV of chemical packaging protection, and within 48 seconds, temperature rises to 200 DEG C, and the test continued can make MOV blast at short notice.And after special chemical encapsulation, the voltage tester of 500V, through the MOV of chemical packaging protection, 3 points of 30 seconds temperature remain on 105 DEG C, and remain on this temperature always.And special chemistry is closed, the heat produced in surge process can be absorbed rapidly, protection product components and parts, extend device useful life.In EMP Coupling process, energy is very large, requires also very high to the electronic component device of filter apparatus.And the special chemical of S product is closed, shift energy by distribute heat, ensure that the useful life of components and parts, thus protection system safety.
3.6 real 10 moulds (full mould) protections, block surge institute likely passage.Equipment requirement carries out filtering protection between the lines.The full mould protection of S product, has blocked line and line, all possible passage of line and ground, thus has played perfect protective effect to equipment
3.7 mixing diversification modules, hot, electric dual fail-safe fusing capacitor design.
3.8 uniquely can earth-free surge protection product, adopts the sinusoidal wave tracking technique of patent, and special chemical encapsulates, and nanosecond TVS element, and ten moulds protections and mixing diversification module, make S product can not be released energy by ground connection.Because full mould is protected, totally 70 MOV, the energy Ratios that every sheet MOV shares is less.When outside does not have ground connection, MOV, when absorbing surge, can discharge the energy of surge by the heating of self.Through the encapsulation of special chemistry, the heat that MOV produces can be absorbed rapidly, protection MOV components and parts.Thus make product can carry out fault offset in unearthed situation.S product can not ground connection time, require that ground wire does equipotential link.In mobile device in military communication system, the character due to movement determines equipment ground system will be perfect not to the utmost.And traditional surge filtering product, all need the ground connection of high request.S product can accomplish that in earth-free situation surge filtering is protected.(list of references: u s company's " series of products specification ")
Four, the kind of electromagnetic shielding
4.1 frequency electromagnetic waves shieldings, main employing absorbs and principle of reflection, and frequency electromagnetic waves, when running into metal shield, produces strong eddy current effect and electromagnetic wave is absorbed, and simultaneously because its wave impedance is very high, frequency electromagnetic waves produces reflection loss.
4.2 shielding in of magnetostatic fields, when magnetic field is by a closed high magnetic conduction shield, because the permeability of shield is very high, magnetic resistance is very low, and magnetic field can be derived by magnetic screen path, and the magnetic field of the shield that makes to bleed significantly is reduced.
4.3 SLF electromagnetic shieldings, mainly based on magnetic shielding principle, will consider electromagnetic compatibility simultaneously, have the shielding action that partial vortices effect produces.
Five, the principle of electromagnetic shielding and choosing of shield manufactured materials
5.1 low frequency electromagnetic Bob frequency electromagnetic waves have higher magnetic-field component, and for low-down interfering frequency, the permeability of shielding material is more than even more important during high frequency.The general principle of shielding low frequency (as power frequency) electromagnetic interference is magnetic path parallel connection by-pass shunt.By using permeability magnetic material (as mild steel, silicon steel etc.) to provide magnetic bypass to reduce the magnetic flux density of shield inside, increasing eddy current loss simultaneously as far as possible, making part energy be converted into thermal energy consumption and fall.The thicker then magnetic resistance of shielding material is less, eddy current loss is larger, and shield effectiveness is better.Conductance is high and the material (as copper, aluminium etc.) that permeability is low does not almost have shielding action to electromagnetic magnetic-field component.
5.2 magnetic permeabilitys are also relevant with applied field strengths.When applied field strengths is lower, magnetic permeability raises with the increase of externally-applied magnetic field, and when applied field strengths exceedes certain value, magnetic permeability sharply declines, and at this time material there occurs saturated, and material, once occur saturated, just loses magnetic screening action.The magnetic permeability of material is higher, more saturated.Therefore, in very strong magnetic field, the screening effectiveness that the material that magnetic permeability is very high is not good.The magnetic permeability of mild steel is about 4000, and saturation intensity is about 22000, good, the easy processing of low carbon steel plate good mechanical property, solderability, not easily saturated, is the first-selection of low frequency electromagnetic shielding material.
Six, the deficiencies in the prior art part
6.1 closed shields, it has structure feature simple, easily manufactured, with low cost, common super low frequency electromagnet shielding device adopts individual layer Alperm composition, and weak point is: (1), shielding factor are low, generally at 20 ~ 30dB; (2), can not the shielding of simultaneously compatible high-intensity magnetic field and low-intensity magnetic field; (3), outside screen is exposed to, be easily subject to impacting, collision and cause the reduction of screening effectiveness, when Alperm is subject to impacting, magnetic permeability can decline.Therefore, the super low frequency electromagnet shielding device of this single layer structure, (electromagnetic shielding coefficient is at 20 ~ 30dB to be only applicable to the lower place of shielding requirements; Electromagnetic shielding coefficient is higher, and the shielding requirements of instrument and equipment is tighter), and for the higher place (electromagnetic shielding coefficient is at 75 ~ 90dB) of shielding requirements, even if shield thickeies, shielding does not reach ideal effect yet.
6.2 in three (shielding, ground connection, filtering) major measure of tempest, often adopt shielding merely, but complete Spark gap can not be provided, receive and transmitting antenna because the cable in equipment or system is the most effective electromagnetic pulse.Especially concerning the system having the equipment of external antenna and multiple devices to be connected to form by cable, simple shielding cannot reach corresponding requirement of shelter.A kind of effective measures add filter exactly, cut off the path that electromagnetic pulse is propagated along holding wire or power line, jointly form perfect Spark gap with shielding.Filtering is to prevent undesirable electromagnetic viscosimeter from propagating into equipment along any aerial lug be connected with equipment, generally having been come by filter.Adopting filter to suppress is one of necessary means of Spark gap, and particularly to suppressing through conductive lines to the energy in circuit, it is a kind of extensive adopted method.
6.3 existing single or multiple lift electromagnetic screens are between outer shield surface, multilayer screen inside and outside layer, in internal layer shield; power source surge protector (SPD) and holding wire, control circuit protector (SPD) are not installed, power source surge protector (SPD) is not installed in earth lead.The highfield that electromagnetic pulse produces and high-intensity magnetic field; can on power line cables, signal line cable and earth lead; induce several kilovolts of electric currents trained to a little Wan An to the voltages of several ten thousand volts and a few kiloampere; electric current enters in shield along power line cables, signal line cable and earth lead, protected computer in the shielding of destroy or disable internal layer.
Summary of the invention
In order to the outer layer protection shell overcoming existing electric vehicle motor controller is easily subject to reaching magnetic saturation after strong-electromagnetic field is attacked; after penetration by electromagnetic fields shell; destroy the integrated circuit of electric vehicle motor controller internal electronic component composition, make the out of control shortcoming of electric automobile.The utility model provides a kind of electromagnetic-field-shielded system of electric vehicle motor controller, in outer shield inside, multiple power source surge protector and holding wire are installed, control circuit protector, reach unloading and absorb outside highfield on the outer shield of electric vehicle motor controller, on power line, on holding wire, with the electric current that cooling water tank induces, the electromagnetic field formidably remaining electric current cannot being responded to make new advances attacks electric vehicle motor controller, ensure that electric vehicle motor controller internal electronic device can not be subject to the destruction of outside strong-electromagnetic field, reach the object that protection electric automobile travels by designing requirement safety high speed, it is temperature-resistant that cooling water tank cooling system can make electric automobile run electric vehicle motor controller under lasting climbing or heavy load.
The technical scheme that the utility model solves the employing of its technical problem is: install cooling water tank (21) in the outside of electric machine controller (22), cooling water tank water inlet (36) and cooling water tank delivery port (41) are arranged on cooling water tank (21) same side, cooling water is flowed out by cooling water tank delivery port (41) after entering by cooling water tank water inlet (36) temperature that cooling water tank (21) reduces in outer shield (19), cooling water tank (21) is made up of the metal material of conductive magneto-conductive, in the outside of cooling water tank (21), 1 ~ 5 layer of outer shield (19) is installed, electric machine controller fixed head (43) is fixed on the inside of outer shield (19), in the inside of outer shield (19), the bottom of electric machine controller fixed head (43) is installed: 1 ~ 5 the first power source surge protector (30), 1 ~ 5 second source Surge Protector (31) and 1 ~ 5 holding wire, control circuit protector (32), the first connecting line (44) on first power source surge protector (30) is connected the electric current that can unload and absorb outside highfield and induce on the housing of outer shield (19) with the inner surface of outer shield (19), the second connecting line (45) on first power source surge protector (30) is connected with the outer surface of cooling water tank (21), the 3rd connecting line (46) on first power source surge protector (30) is connected with electric machine controller (22) outer surface, electric machine controller fixed head (43) arranges electric machine controller first fixing port (26) and electric machine controller second fixing port (42), together with being tightened in electric machine controller (22) with key screw electric machine controller first fixing port (26) and electric machine controller second fixing port (42), outer shield (19) arranges outer shield first fixture (18), outer shield second fixture (24), outer shield the 3rd fixture (28) and outer shield the 4th fixture (34), for outer shield (19) is fixed on electric automobile, outer shield (19) and cooling water tank (21) water tank first fixture (20), water tank second fixture (23), water tank the 3rd fixture (29) and water tank the 4th fixture (33) link together, cooling water tank (21) arranges cooling water tank water inlet (36) and cooling water tank delivery port (41), outer shield (19) upper tapping cover thread, holding wire conducting pipes (37) overlaps thread, holding wire conducting pipes (37) is tightened on outer shield (19), at power line conducting pipes (39) upper cover thread, power line conducting pipes (39) is tightened on outer shield (19), secondary signal line (38) enters outer shield (19) inside and holding wire through holding wire conducting pipes (37), control circuit protector (32) connects, holding wire, the first holding wire (15) on control circuit protector (32) is connected with the signal connector (3) of electric machine controller (22), second source line (40) enters outer shield (19) inside through power line conducting pipes (39) and is connected with second source Surge Protector (31), three-phase connector (1) or the two-phase connector (2) of the first power line (17) on second source Surge Protector (31) and electric machine controller (22) are connected, holding wire conducting pipes (37) and power line conducting pipes (39) must be that the metal of conductive magneto-conductive is made, curve the bend pipe of camber 90 °, with outer shield fixed screw (47) the outer shield first interface (16) on outer shield (19), outer shield second interface (25), outer shield the 3rd interface (27), outer shield first junction surface (48) on outer shield the 4th interface (35) and outer shield second junction surface (49) are fixed together, box body (100) is passed through by compact the becoming one of each functional component of electric machine controller in electric machine controller (22), box body (100) is provided with cuboid, box body (100) comprises box body (101) and lid (102), box body (101) is for having the cuboid of opening, lid (102) is fastened on box body (101), three-phase connector (1) is had in box body (100) external stability, two-phase connector (2) and signal connector (3), IGBT module (4) is fixed with at tray interior, drive plate (5), control board (6), baffle (7), AC busbar (8), DC busbar (9) and electric capacity (10), outside at box body (100): by three-phase connector (1), two-phase connector (2) and signal connector (3) are integrated on box body (100), be positioned on same sidewall, three-phase connector (1), two-phase connector (2) and signal connector (3) adopt panel installed connector respectively, directly be installed on the sidewall of box body (100) by it, inner at box body (100): IGBT module (4) is arranged on the base plate of box body (100), the top of IGBT module (4), is disposed with drive plate (5), control board (6) and baffle (7) from bottom to top, the relative both sides of IGBT module (4) are respectively arranged with AC busbar (8) and DC busbar (9), the contiguous three-phase connector (1) of AC busbar (8), electric capacity (10) is provided with between DC busbar (9) and wall box, box body (100) inside is also fixed with barricade (11), barricade (11) is arranged between control board (6) and drive plate (5), barricade (11) can prevent the analog signal of the upper long distance conduction of control board (6) to be disturbed, and it is affected by vibration larger after preventing control board (6) from mating with drive plate (5), by arranging barricade (11), ensure that the bonding strength between control board (6) and drive plate (5) on the one hand, control board (6) is verified by vibration-testing, the interference shielding to high-voltage power side and three-phase connector side can be realized on the other hand, improve the analog signal quality on control board (6), between AC busbar (8) and box body (100) sidewall, and between DC busbar (9) box body adjacent thereto (100) sidewall, be fixed with heat conductive insulating pad respectively, heat conductive insulating pad preferably adopts the higher isolation material of conductive coefficient to make, with the effect that realization is insulation and heat conduction, heat on busbar can be shed in time, ensure the circulation of electric current, and realize AC busbar (8) and DC busbar (9) and can be adjacent to closely on the corresponding sidewall of box body (100), drive plate (5) is welded in IGBT module (4) by pad mode, drive plate (5) does not need special anti-vibration supporting bracket, AC busbar (8) is connected by zinc-plated outer-hexagonal flange bolt (12) with three-phase connector (1), outer-hexagonal flange bolt (12) is large with the contact area of AC busbar (8), when tightening operation, under same torque, pressure is relatively little, effectively prevent busbar causes busbar cross section to diminish phenomenon due to distortion, also reduce the contact resistance between AC busbar (8) and three-phase connector (1), the zinc-plated scheme of outer-hexagonal flange bolt (12), the effect of shunting can be played, between control board (6) and drive plate (5), and between control board (6) and signal connector (3), be connected respectively by corresponding keyset (13), keyset (13) is for having the plate structure of certain bending angle, the shape of this plate structure can be arranged flexibly, for connection control plate (6) and drive plate (5), and for connection control plate (6) and signal connector (3), not separated connection of control board (6) and signal connector (3), be electrically connected indeed through keyset (13), DC busbar (9) adopts stack-design, the anode of DC busbar (9) is parallel with negative terminal to be superimposed, electric capacity (10), i.e. DC support electric capacity (10), adopt outer busbar form, it is outside that DC busbar (9) is set to electric capacity (10), but not it is inner to be integrated in electric capacity (10), and the splicing ear of electric capacity (10) is directly connected with IGBT module (4), the cooling water channel side of IGBT module (4), in circuit layout, baffle (7) and DC busbar (9) conducting on circuit, the link of electric capacity (10) and link of DC busbar (9) is top-down is connected in IGBT module (4), another link of DC busbar (9) is connected with two-phase connector (2) by flange bolt, form direct current power input path, (5) are fixed with current sensor to drive plate, copper post (14) is fitted with in current sensor, one end of AC busbar (8) is bolted on copper post (14), its other end is connected with three-phase connector (1) by flange bolt, form AC power outgoing route, corresponding to three-phase connector (1), copper post (14) is set to three, three copper posts (14) are arranged side by side, by AC busbar (8), drive plate (5) and IGBT module (4) run through and fixedly overlap together, then bolt tightening is used, namely copper post (14) is provided with screwed hole vertically, box body (100) adopts the materials processing of monolithic conductive magnetic conduction, the thickness of DC busbar (9) and AC busbar (8), be set to about 3mm, copper post (14) is hollow-core construction.
The beneficial effects of the utility model are: electric vehicle motor controller internal electronic device can not be subject to the destruction of outside strong-electromagnetic field; reach the requirement that protection electric automobile travels by designing requirement safety high speed; it is temperature-resistant that cooling water temperature system can make electric automobile run electric vehicle motor controller under lasting climbing or heavy load; electric automobile is used according to designing requirement; can electric automobile be widelyd popularize, replace existing with gasoline and diesel oil for fuel automobile.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and embodiment, the utility model is further illustrated
Fig. 1 is the cross-sectional schematic of the utility model embodiment 1;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the utility model embodiment 1 connecting portion profile;
Fig. 4 is the structural representation of electric machine controller;
Fig. 5 is the A-A cutaway view of Fig. 4;
Fig. 6 is the exploded perspective view of Fig. 4.
In figure: 100. box bodys; 101. box bodies; 102. lid; 1. three-phase connector; 2. two-phase connector; 3. signal connector; 4.IGBT module; 5. drive plate; 6. control board; 7. baffle; 8.AC busbar; 9.DC busbar; 10. electric capacity; 11. barricades; 12. outer-hexagonal flange bolts; 13. keysets; 14. bronze medal posts; 15. first holding wires; 16. outer shield first interfaces; 17. first power lines; 18. outer shield first fixtures; 19. outer shields; 20. water tank first fixtures; 21. cooling water tanks; 22. electric machine controllers; 23. water tank second fixtures; 24. outer shield second fixtures; 25. outer shield second interfaces; 26. electric machine controller first fixing ports; 27. outer shield the 3rd interfaces; 28. outer shield the 3rd fixtures; 29. water tanks the 3rd fixture; 30 first power source surge protectors; 31. second source Surge Protectors; 32. holding wires, control circuit protector; 33. water tanks the 4th fixture; 34. outer shield the 4th fixtures; 35. outer shield the 4th interfaces; 36. cooling water tank water inlets; 37. holding wire conducting pipes; 38. secondary signal lines; 39. power line conducting pipes; 40. second source lines; 41. cooling water tank delivery ports; 42. electric machine controller second fixing ports; 43. electric machine controller fixed heads; 44. first power lines; 45. second source lines; The outer shield fixed screw of 46. the 3rd power line 47.; 48. outer shield first junction surfaces; 49. outer shield second junction surfaces.
Embodiment
In fig. 1 and 2, in the outside of electric machine controller (22), cooling water tank (21) is installed, cooling water tank water inlet (36) and cooling water tank delivery port (41) are arranged on cooling water tank (21) same side, cooling water is flowed out by cooling water tank delivery port (41) after entering by cooling water tank water inlet (36) temperature that cooling water tank (21) reduces in outer shield (19), cooling water tank (21) is made up of the metal material of conductive magneto-conductive, 1 layer of outer shield (19) is installed in the outside of cooling water tank (21), electric machine controller fixed head (43) is fixed on the inside of outer shield (19), in the inside of outer shield (19), the bottom of electric machine controller fixed head (43) is installed: 1 the first power source surge protector (30), 1 second source Surge Protector (31) and 1 holding wire, control circuit protector (32), the first connecting line (44) on first power source surge protector (30) is connected the electric current that can unload and absorb outside highfield and induce on the housing of outer shield (19) with the inner surface of outer shield (19), the second connecting line (45) on first power source surge protector (30) is connected with the outer surface of cooling water tank (21), the 3rd connecting line (46) on first power source surge protector (30) is connected with electric machine controller (22) outer surface, electric machine controller fixed head (43) arranges electric machine controller first fixing port (26) and electric machine controller second fixing port (42), together with being tightened in electric machine controller (22) with key screw electric machine controller first fixing port (26) and electric machine controller second fixing port (42), outer shield (19) arranges outer shield first fixture (18), outer shield second fixture (24), outer shield the 3rd fixture (28) and outer shield the 4th fixture (34), for outer shield (19) is fixed on electric automobile, outer shield (19) and cooling water tank (21) water tank first fixture (20), water tank second fixture (23), water tank the 3rd fixture (29) and water tank the 4th fixture (33) link together, cooling water tank (21) arranges cooling water tank water inlet (36) and cooling water tank delivery port (41), outer shield (19) upper tapping cover thread, holding wire conducting pipes (37) overlaps thread, holding wire conducting pipes (37) is tightened on outer shield (19), at power line conducting pipes (39) upper cover thread, power line conducting pipes (39) is tightened on outer shield (19), secondary signal line (38) enters outer shield (19) inside and holding wire through holding wire conducting pipes (37), control circuit protector (32) connects, holding wire, the first holding wire (15) on control circuit protector (32) is connected with the signal connector (3) of electric machine controller (22), second source line (40) enters outer shield (19) inside through power line conducting pipes (39) and is connected with second source Surge Protector (31), three-phase connector (1) or the two-phase connector (2) of the first power line (17) on second source Surge Protector (31) and electric machine controller (22) are connected, holding wire conducting pipes (37) and power line conducting pipes (39) must be that the metal of conductive magneto-conductive is made, curve the bend pipe of camber 90 °,
In figure 3, with outer shield fixed screw (47), outer shield first junction surface (48) on the outer shield first interface (15) on outer shield (19), outer shield second interface (25), outer shield the 3rd interface (27), outer shield the 4th interface (35) and outer shield second junction surface (49) are fixed together.
At Fig. 4, in Fig. 5 and Fig. 6, box body (100) is passed through by compact the becoming one of each functional component of electric machine controller in electric machine controller (22), box body (100) is provided with cuboid, box body (100) comprises box body (101) and lid (102), box body (101) is for having the cuboid of opening, lid (102) is fastened on box body (101), three-phase connector (1) is had in box body (100) external stability, two-phase connector (2) and signal connector (3), IGBT module (4) is fixed with at tray interior, drive plate (5), control board (6), baffle (7), AC busbar (8), DC busbar (9) and electric capacity (10), outside at box body (100): by three-phase connector (1), two-phase connector (2) and signal connector (3) are integrated on box body (100), be positioned on same sidewall, three-phase connector (1), two-phase connector (2) and signal connector (3) adopt panel installed connector respectively, directly be installed on the sidewall of box body (100) by it, inner at box body (100): IGBT module (4) is arranged on the base plate of box body (100), the top of IGBT module (4), is disposed with drive plate (5), control board (6) and baffle (7) from bottom to top, the relative both sides of IGBT module (4) are respectively arranged with AC busbar (8) and DC busbar (9), the contiguous three-phase connector (1) of AC busbar (8), electric capacity (10) is provided with between DC busbar (9) and wall box, box body (100) inside is also fixed with barricade (11), barricade (11) is arranged between control board (6) and drive plate (5), barricade (11) can prevent the analog signal of the upper long distance conduction of control board (6) to be disturbed, and it is affected by vibration larger after preventing control board (6) from mating with drive plate (5), by arranging barricade (11), ensure that the bonding strength between control board (6) and drive plate (5) on the one hand, control board (6) is verified by vibration-testing, the interference shielding to high-voltage power side and three-phase connector side can be realized on the other hand, improve the analog signal quality on control board (6), between AC busbar (8) and box body (100) sidewall, and between DC busbar (9) box body adjacent thereto (100) sidewall, be fixed with heat conductive insulating pad respectively, heat conductive insulating pad preferably adopts the higher isolation material of conductive coefficient to make, with the effect that realization is insulation and heat conduction, heat on busbar can be shed in time, ensure the circulation of electric current, and realize AC busbar (8) and DC busbar (9) and can be adjacent to closely on the corresponding sidewall of box body (100), drive plate (5) is welded in IGBT module (4) by pad mode, drive plate (5) does not need special anti-vibration supporting bracket, AC busbar (8) is connected by zinc-plated outer-hexagonal flange bolt (12) with three-phase connector (1), outer-hexagonal flange bolt (12) is large with the contact area of AC busbar (8), when tightening operation, under same torque, pressure is relatively little, effectively prevent busbar causes busbar cross section to diminish phenomenon due to distortion, also reduce the contact resistance between AC busbar (8) and three-phase connector (1), the zinc-plated scheme of outer-hexagonal flange bolt (12), the effect of shunting can be played, between control board (6) and drive plate (5), and between control board (6) and signal connector (3), be connected respectively by corresponding keyset (13), keyset (13) is for having the plate structure of certain bending angle, the shape of this plate structure can be arranged flexibly, for connection control plate (6) and drive plate (5), and for connection control plate (6) and signal connector (3), not separated connection of control board (6) and signal connector (3), be electrically connected indeed through keyset (13), DC busbar (9) adopts stack-design, the anode of DC busbar (9) is parallel with negative terminal to be superimposed, electric capacity (10), i.e. DC support electric capacity (10), adopt outer busbar form, it is outside that DC busbar (9) is set to electric capacity (10), but not it is inner to be integrated in electric capacity (10), and the splicing ear of electric capacity (10) is directly connected with IGBT module (4), the cooling water channel side of IGBT module (4), in circuit layout, baffle (7) and DC busbar (9) conducting on circuit, the link of electric capacity (10) and link of DC busbar (9) is top-down is connected in IGBT module (4), another link of DC busbar (9) is connected with two-phase connector (2) by flange bolt, form direct current power input path, (5) are fixed with current sensor to drive plate, copper post (14) is fitted with in current sensor, one end of AC busbar (8) is bolted on copper post (14), its other end is connected with three-phase connector (1) by flange bolt, form AC power outgoing route, corresponding to three-phase connector (1), copper post (14) is set to three, three copper posts (14) are arranged side by side, by AC busbar (8), drive plate (5) and IGBT module (4) run through and fixedly overlap together, then bolt tightening is used, namely copper post (14) is provided with screwed hole vertically, box body (100) adopts the materials processing of monolithic conductive magnetic conduction, the thickness of DC busbar (9) and AC busbar (8), be set to about 3mm, copper post (14) is hollow-core construction.
Claims (2)
1. the electromagnetic-field-shielded system of an electric vehicle motor controller, it is characterized in that: in the outside of electric machine controller (22), cooling water tank (21) is installed, cooling water tank water inlet (36) and cooling water tank delivery port (41) are arranged on cooling water tank (21) same side, cooling water is flowed out by cooling water tank delivery port (41) after entering by cooling water tank water inlet (36) temperature that cooling water tank (21) reduces in outer shield (19), cooling water tank (21) is made up of the metal material of conductive magneto-conductive, in the outside of cooling water tank (21), 1 ~ 5 layer of outer shield (19) is installed, electric machine controller fixed head (43) is fixed on the inside of outer shield (19), in the inside of outer shield (19), the bottom of electric machine controller fixed head (43) is installed: 1 ~ 5 the first power source surge protector (30), 1 ~ 5 second source Surge Protector (31) and 1 ~ 5 holding wire, control circuit protector (32), the first connecting line (44) on first power source surge protector (30) is connected the electric current that can unload and absorb outside highfield and induce on the housing of outer shield (19) with the inner surface of outer shield (19), the second connecting line (45) on first power source surge protector (30) is connected with the outer surface of cooling water tank (21), the 3rd connecting line (46) on first power source surge protector (30) is connected with electric machine controller (22) outer surface, electric machine controller fixed head (43) arranges electric machine controller first fixing port (26) and electric machine controller second fixing port (42), together with being tightened in electric machine controller (22) with key screw electric machine controller first fixing port (26) and electric machine controller second fixing port (42), outer shield (19) arranges outer shield first fixture (18), outer shield second fixture (24), outer shield the 3rd fixture (28) and outer shield the 4th fixture (34), for outer shield (19) is fixed on electric automobile, outer shield (19) and cooling water tank (21) water tank first fixture (20), water tank second fixture (23), water tank the 3rd fixture (29) and water tank the 4th fixture (33) link together, cooling water tank (21) arranges cooling water tank water inlet (36) and cooling water tank delivery port (41), outer shield (19) upper tapping cover thread, holding wire conducting pipes (37) overlaps thread, holding wire conducting pipes (37) is tightened on outer shield (19), at power line conducting pipes (39) upper cover thread, power line conducting pipes (39) is tightened on outer shield (19), secondary signal line (38) enters outer shield (19) inside and holding wire through holding wire conducting pipes (37), control circuit protector (32) connects, holding wire, the first holding wire (15) on control circuit protector (32) is connected with the signal connector (3) of electric machine controller (22), second source line (40) enters outer shield (19) inside through power line conducting pipes (39) and is connected with second source Surge Protector (31), three-phase connector (1) or the two-phase connector (2) of the first power line (17) on second source Surge Protector (31) and electric machine controller (22) are connected, holding wire conducting pipes (37) and power line conducting pipes (39) must be that the metal of conductive magneto-conductive is made, curve the bend pipe of camber 90 °, with outer shield fixed screw (47) the outer shield first interface (16) on outer shield (19), outer shield second interface (25), outer shield the 3rd interface (27), outer shield first junction surface (48) on outer shield the 4th interface (35) and outer shield second junction surface (49) are fixed together, box body (100) is passed through by compact the becoming one of each functional component of electric machine controller in electric machine controller (22), box body (100) is provided with cuboid, box body (100) comprises box body (101) and lid (102), box body (101) is for having the cuboid of opening, lid (102) is fastened on box body (101), three-phase connector (1) is had in box body (100) external stability, two-phase connector (2) and signal connector (3), IGBT module (4) is fixed with at tray interior, drive plate (5), control board (6), baffle (7), AC busbar (8), DC busbar (9) and electric capacity (10), outside at box body (100): by three-phase connector (1), two-phase connector (2) and signal connector (3) are integrated on box body (100), be positioned on same sidewall, three-phase connector (1), two-phase connector (2) and signal connector (3) adopt panel installed connector respectively, directly be installed on the sidewall of box body (100) by it, inner at box body (100): IGBT module (4) is arranged on the base plate of box body (100), the top of IGBT module (4), is disposed with drive plate (5), control board (6) and baffle (7) from bottom to top, the relative both sides of IGBT module (4) are respectively arranged with AC busbar (8) and DC busbar (9), the contiguous three-phase connector (1) of AC busbar (8), electric capacity (10) is provided with between DC busbar (9) and wall box, box body (100) inside is also fixed with barricade (11), barricade (11) is arranged between control board (6) and drive plate (5), barricade (11) can prevent the analog signal of the upper long distance conduction of control board (6) to be disturbed, and it is affected by vibration larger after preventing control board (6) from mating with drive plate (5), by arranging barricade (11), ensure that the bonding strength between control board (6) and drive plate (5) on the one hand, control board (6) is verified by vibration-testing, the interference shielding to high-voltage power side and three-phase connector side can be realized on the other hand, improve the analog signal quality on control board (6), between AC busbar (8) and box body (100) sidewall, and between DC busbar (9) box body adjacent thereto (100) sidewall, be fixed with heat conductive insulating pad respectively, heat conductive insulating pad preferably adopts the higher isolation material of conductive coefficient to make, with the effect that realization is insulation and heat conduction, heat on busbar can be shed in time, ensure the circulation of electric current, and realize AC busbar (8) and DC busbar (9) and can be adjacent to closely on the corresponding sidewall of box body (100), drive plate (5) is welded in IGBT module (4) by pad mode, drive plate (5) does not need special anti-vibration supporting bracket, AC busbar (8) is connected by zinc-plated outer-hexagonal flange bolt (12) with three-phase connector (1), outer-hexagonal flange bolt (12) is large with the contact area of AC busbar (8), when tightening operation, under same torque, pressure is relatively little, effectively prevent busbar causes busbar cross section to diminish phenomenon due to distortion, also reduce the contact resistance between AC busbar (8) and three-phase connector (1), the zinc-plated scheme of outer-hexagonal flange bolt (12), the effect of shunting can be played, between control board (6) and drive plate (5), and between control board (6) and signal connector (3), be connected respectively by corresponding keyset (13), keyset (13) is for having the plate structure of certain bending angle, the shape of this plate structure can be arranged flexibly, for connection control plate (6) and drive plate (5), and for connection control plate (6) and signal connector (3), not separated connection of control board (6) and signal connector (3), be electrically connected indeed through keyset (13), DC busbar (9) adopts stack-design, the anode of DC busbar (9) is parallel with negative terminal to be superimposed, electric capacity (10), i.e. DC support electric capacity (10), adopt outer busbar form, it is outside that DC busbar (9) is set to electric capacity (10), but not it is inner to be integrated in electric capacity (10), and the splicing ear of electric capacity (10) is directly connected with IGBT module (4), the cooling water channel side of IGBT module (4), in circuit layout, baffle (7) and DC busbar (9) conducting on circuit, the link of electric capacity (10) and link of DC busbar (9) is top-down is connected in IGBT module (4), another link of DC busbar (9) is connected with two-phase connector (2) by flange bolt, form direct current power input path, (5) are fixed with current sensor to drive plate, copper post (14) is fitted with in current sensor, one end of AC busbar (8) is bolted on copper post (14), its other end is connected with three-phase connector (1) by flange bolt, form AC power outgoing route, corresponding to three-phase connector (1), copper post (14) is set to three, three copper posts (14) are arranged side by side, by AC busbar (8), drive plate (5) and IGBT module (4) run through and fixedly overlap together, then bolt tightening is used, namely copper post (14) is provided with screwed hole vertically, box body (100) adopts the materials processing of monolithic conductive magnetic conduction, the thickness of DC busbar (9) and AC busbar (8), be set to about 3mm, copper post (14) is hollow-core construction.
2. the electromagnetic-field-shielded system of electric vehicle motor controller according to claim 1; it is characterized in that: 1 layer of outer shield (19) is installed in the outside of cooling water tank (21); in the inside of outer shield (19), the bottom of electric machine controller fixed head (43) is installed: 1 the first power source surge protector (30), 1 second source Surge Protector (31) and 1 holding wire, control circuit protector (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420282762.0U CN204145193U (en) | 2014-05-23 | 2014-05-23 | The electromagnetic-field-shielded system of electric vehicle motor controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420282762.0U CN204145193U (en) | 2014-05-23 | 2014-05-23 | The electromagnetic-field-shielded system of electric vehicle motor controller |
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| CN204145193U true CN204145193U (en) | 2015-02-04 |
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| CN201420282762.0U Expired - Fee Related CN204145193U (en) | 2014-05-23 | 2014-05-23 | The electromagnetic-field-shielded system of electric vehicle motor controller |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811667A (en) * | 2015-06-12 | 2016-07-27 | 韩磊 | Electromagnetic field shielding system for electric automobile driving motor |
| CN108156831A (en) * | 2015-10-14 | 2018-06-12 | 大陆泰密克微电子有限责任公司 | For electric reversing motor go interference module, for manufacture go the method for interference module and with this vehicle for going interference module |
| CN108923591A (en) * | 2018-09-28 | 2018-11-30 | 浙江凯威碳材料有限公司 | A kind of micro machine anti-interference protective device of semicircular ring electromagnetic compatibility |
| CN109104050A (en) * | 2018-09-26 | 2018-12-28 | 湖南宏达天恒汽车电子科技有限公司 | A kind of electric machine controller and electric car |
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2014
- 2014-05-23 CN CN201420282762.0U patent/CN204145193U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811667A (en) * | 2015-06-12 | 2016-07-27 | 韩磊 | Electromagnetic field shielding system for electric automobile driving motor |
| WO2016197785A1 (en) * | 2015-06-12 | 2016-12-15 | 韩磊 | Electromagnetic field shielding system of electric vehicle drive motor |
| CN105811667B (en) * | 2015-06-12 | 2018-05-22 | 韩磊 | The electromagnetic-field-shielded system of electric vehicle drive motor |
| US20180166953A1 (en) * | 2015-06-12 | 2018-06-14 | Lei Han | Electromagnetic Shielding System of Eectric Vehicle's Driving Motor |
| CN108156831A (en) * | 2015-10-14 | 2018-06-12 | 大陆泰密克微电子有限责任公司 | For electric reversing motor go interference module, for manufacture go the method for interference module and with this vehicle for going interference module |
| US11695311B2 (en) | 2015-10-14 | 2023-07-04 | Vitesco Tehcnologies Germany GmbH | Interference suppression module for an electrically commutated electric motor, method for producing an interference suppression module, and vehicle comprising such an interference suppression module |
| CN109104050A (en) * | 2018-09-26 | 2018-12-28 | 湖南宏达天恒汽车电子科技有限公司 | A kind of electric machine controller and electric car |
| CN108923591A (en) * | 2018-09-28 | 2018-11-30 | 浙江凯威碳材料有限公司 | A kind of micro machine anti-interference protective device of semicircular ring electromagnetic compatibility |
| CN108923591B (en) * | 2018-09-28 | 2023-12-01 | 浙江凯威碳材料有限公司 | Semi-circular ring electromagnetic compatibility anti-interference protection device for micro motor |
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Granted publication date: 20150204 Termination date: 20190523 |