CN205829519U - A kind of electric vehicle motor controller - Google Patents

Abstract

This utility model relates to dc-link capacitance, IGBT module, metal rack, driving plate, current sensor, AC busbar, DC busbar assembly and the Y capacitance that a kind of electric vehicle motor controller includes being arranged in main box；Also include that upper box, described upper box are internally provided with junction block assembly, barricade, panel, negative pole switching busbar, positive pole switching busbar, air-conditioning connector, microswitch, air-conditioning insurance and high direct voltage interlocking connector；Described upper box external stability has direct current connector, exchange connector, air-conditioning connector, low pressure connector, panel lid and connector cover.IGBT and dc-link capacitance is vertical puts during the electric machine controller work that this utility model provides, can be flexibly adapted to arrangement, has that compact conformation, power density height, good heat dissipation effect, Electro Magnetic Compatibility be good, processing safety advantages of higher simultaneously.

Description

A kind of electric vehicle motor controller

Technical field

This utility model relates to electric machine controller field, is specifically related to a kind of electric vehicle motor controller.

Background technology

Electric machine controller is to realize the alternating current electricity consumption conversion of the powered by direct current of battery and motor, realize driving of motor and run Critical component, belongs to the core power parts of electric automobile, and it allows for running the most reliably.Motor of the prior art Controller mainly shows as that volume is big, integrated level is poor, poor heat radiation and Electro Magnetic Compatibility difference etc..Simultaneously as most electric automobiles Exploitation selects and the same platform development of orthodox car, and mixing power vehicle needs to increase electricity on the basis of orthodox car at design aspect and drives Dynamic system, causes conventional cabin arrangement space nervous, and it is more, to motor that electric machine controller arranges that border and wire laying mode etc. limit The structure design of controller is had higher requirement.

Patent CN103730989A provides the electric machine controller of a kind of water-cooled, high power density, its IGBT and dc bus electricity Hold and be mounted side by side on main box；Plate is driven to be fixed on above panel and separated with panel by metal shielding board；AC is female Arrange by driving the onboard current sensor on plate to be connected with exchanging connector；DC busbar assembly be stepped construction respectively with direct current Bus capacitor external part and alternating current bus bar are connected, and motor controller structure is arranged compact.Owing to its all parts are all installed In main box, top uses a lid to seal, and the most biphase adapter of internal components, three-phase connector arrange that the most relatively direct current is female Line capacitance exceeds a lot, causes inner space to waste；There is no integrated air-conditioning connector and air-conditioning insurance, need extra structure real Existing compressor of air conditioner is powered；Do not account for high-voltage interlocking switch designs, it is impossible to ensure user personal safety etc..

Providing a kind of compact(ing) machine controller being integrated with precharge loop in patent CN202009361U, its IGBT arranges On main box water channel；Design stamping steel plate above IGBT and fix four electrochemical capacitors；DC busbar assembly respectively with four electrolysis Eight junction points of electric capacity carry out bolt connection and main box space are divided into the left and right sides；It is pre-charged loop and panel and control The barricade of plate is arranged in the opposite side of DC busbar assembly；The input of DC busbar assembly and AC busbar export respectively by being fixed on master Two rosettees on casing realize；Controller top is sealed by stamping forming case lid.This controller is integrated with and is pre-charged back Road, internal structure is compact, has preferable assembly process process simultaneously.But its capacity arrangement is above IGBT, vibration resistance Property is poor, and capacity type is electrochemical capacitor simultaneously, and its performance has lagged behind the thin-film capacitor of current popular；DC busbar assembly is defeated Enter and realized by extra rosette respectively with the output of AC busbar, cause controller volume to increase；This controller is also without examining Worry compressor of air conditioner is powered and high-voltage interlocking switch carries out the functions such as security protection；It is relatively big additionally, due to this controller overall dimensions, Normally only it is applicable to pure electric coach or hybrid power passenger car.

Therefore, need the electric machine controller of a kind of applicable electric automobile particularly electrocar badly, solve motor control of the prior art Device integrated level processed is the highest and lacks the potential risks such as high-voltage interlocking switch.

Summary of the invention

The purpose of this utility model is to provide a kind of electric vehicle motor controller, and it can be better achieved in car load space Arrange have that compact conformation, power density height, good heat dissipation effect, Electro Magnetic Compatibility be good, processing safety high simultaneously.

The purpose of this utility model is achieved through the following technical solutions:

Dc-link capacitance that a kind of electric vehicle motor controller includes being arranged in main box, IGBT module, driving plate, Current sensor, AC busbar, DC busbar assembly and Y capacitance；Also include that upper box, described upper box are internally provided with Junction block assembly, barricade, panel, negative pole switching busbar, positive pole switching busbar, air-conditioning connector, microswitch, sky Insurance and high direct voltage is adjusted to interlock connector；Described upper box external stability has direct current connector, exchange connector, air-conditioning to connect Plug-in unit, low pressure connector, panel lid and connector cover；

Described dc-link capacitance is arranged in side on main box base plate；IGBT module is fixed on dc-link capacitance opposite side Main box base plate on；Driving plate to be fixedly connected on above IGBT module, current sensor is disposed relative to dc bus electricity The side of the IGBT module held, described driving plate is connected with current sensor；Described IGBT is fixed in AC busbar one end The exchange outlet side of module, the AC busbar other end is connected through the detection hole of described current sensor with exchanging connector；DC Busbar assembly is walked around IGBT module both sides and is connected with dc-link capacitance；Y capacitance is arranged in DC busbar assembly and is adjacent Main box sidewall between be connected with DC busbar assembly；Described barricade is arranged in inside the upper box driven above plate；Institute The panel stated is fixing on the shield plates, and respectively at driving plate, low pressure connector and high-voltage interlocking wire harness to connect；Described connects The side that line seat assembly is corresponding with barricade in being fixed on upper box；Negative pole switching mother it is disposed with in draw-in groove on junction block assembly Row, positive pole switching busbar and high direct voltage interlocking connector, junction block assembly has the wire hole of high-voltage wiring harness；Described air-conditioning The high-voltage interlocking wire harness of connector 31, microswitch 25 wire harness and with direct current connector to join high direct voltage interlocking connector Low tension loop series connection；Described negative pole switching busbar, positive pole switching busbar respectively with high-voltage wiring harness and the air-conditioning of air-conditioning connector Insurance is connected；The high-voltage interlocking switch wire harness of described junction block assembly, air-conditioning connector and direct current connector is series at panel On；Described upper box and main box fixed seal connection.

Further, the water channel for cooling down above-mentioned IGBT module of connection it is provided with inside and outside described main box；Described Main box offer the circular hole for installing straight-through water pipe；On described main box, the other both sides of IGBT module are respectively disposed with Discharge resistance and cooling-water temperature sensor；The wire harness of described discharge resistance is connected with described DC busbar assembly；Described water temperature passes The wire harness of sensor is fixed on water inlet or the outlet of the water channel of main box, and the low voltage wiring harness of described cooling-water temperature sensor is with described Driving plate connects.

Further, on described main box base plate, the opposite side at dc-link capacitance is further fixed on metal rack, described IGBT module is arranged on the inside of metal rack, metal rack be above provided with upper surface and the heat radiation rubber cushion driving plate to be connected, Heat radiation rubber cushion one end and the water channel extending to main box.

Further, described dc-link capacitance is thin-film capacitor, and it is secured by bolts on above-mentioned main box boss, thin Membrane capacitance bottom has and the convex tendon of main box groove fit, and thin-film capacitor and main box junction are provided with vibration damping rubber cushion.

Further, described DC busbar assembly includes positive pole busbar and cathode bus bar；Have between positive pole busbar and cathode bus bar Insulating support, insulating support is provided with buckle structure and convex rib structure, and insulating support is fixed with described main box by alignment pin Position and being secured by bolts on main box, the buckle structure of insulating support is in order to realize described cooling-water temperature sensor wire harness and described The clamping of Y capacitance wire harness；The convex rib structure of insulating support is used for realizing DC busbar assembly positive and negative electrode electrical isolation, insulation Support local exposes described DC busbar assembly surface so that described DC busbar assembly dispels the heat.

Further, described junction block assembly exchanges connector connecting bolt envisaged underneath at described AC busbar with described Baffle plate, during preventing assembling, bolt drops.

Further, described porous plug is installed in the groove of upper box, and upper box offers panel lid and connector cover Installing hole.

Further, described panel lid has the boss for described panel heat radiation.

Further, described connector cover side design boss realizes triggering microswitch during work.

Further, described current sensor is three form current sensors.

The beneficial effects of the utility model are as follows:

1. this utility model provide electric machine controller by IGBT module, drive plate, metal rack, dc-link capacitance, Current sensor, cooling-water temperature sensor, discharge resistance, DC busbar assembly, AC busbar are integrated according to specific position relationship Main box, patches the insurance of junction block assembly, barricade, panel, air-conditioning connector and air-conditioning, low pressure connector, exchange Part, direct current connector etc. are integrated in upper box, it is achieved that being complementary to one another in the confined space, make electric machine controller volume significantly Compression, reduces volume waste.

2. the junction block assembly of electric machine controller, air-conditioning connector and the high-voltage interlocking of direct current connector that this utility model provides Switch wire harness is series on panel and realizes high-voltage interlocking control, the structure making electric machine controller is compacter, power density is high, Electro Magnetic Compatibility is higher and operation is safer etc., meets electric automobile particularly electrocar and arranges for controller and height can Requirement by property.

3. the application of the metal rack of the electric machine controller that this utility model provides realizes driving plate local temperature to reduce by 10 DEG C of left sides The right side, makes radiating effect more preferable；To electric capacity and the protection of connecting bolt when the application electric machine controller of damping rubber pad vibrates, improve The reliability that dc-link capacitance uses；Positive pole busbar and cathode bus bar are realized the most absolutely by the insulating support of integrated injection moulding Edge, it is achieved the reliability of master row insulating and the convenience of installation, reduces the electric property caused due to assembling error and reduces equivalent risk.

Accompanying drawing explanation

Fig. 1 is the cross-sectional schematic of this utility model embodiment；

Fig. 2 is the exploded perspective view of this utility model embodiment；

Fig. 3 is the main box assembly front schematic view of this utility model embodiment；

Fig. 4 is the upper box assembly front schematic view of this utility model embodiment；

Fig. 5 is the upper box module backside schematic diagram of this utility model embodiment.

Detailed description of the invention

Below in conjunction with drawings and Examples, this utility model is further elaborated.

Embodiment 1

See Fig. 1-Fig. 5, this embodiment disclose a kind of electric vehicle motor controller, including main box 1 and upper box 2, Each functional component of described electric vehicle motor controller with specific position relationship, is arranged on described main box 1 respectively With upper box 2 either internally or externally, and then realize being said each merit of electric machine controller by described main box 1 and upper box 2 Energy property compact the becoming one of component, furthermore achieved that the electrical connection of each functional component is more succinct, efficient, improves electricity The reliability of machine controller and power density.

Specifically, described main box 1 is preferably arranged to rectangular configuration, in order to be suitable for the layout on car load border, in order to just In being connected with upper box 2, in this embodiment, institute is preferably, and described main box 1 side edge protuberance is used for inside it installing Each functional component of electric machine controller, opposite side water way portion is protruding, for realizing the water inlet assigned position at car load.

It is provided with dc-link capacitance 7, metal rack 5, IGBT module 3 in described main box 1, drives plate 4, electric current Sensor 12, AC busbar 10, DC busbar assembly 9, Y capacitance 8, heat radiation rubber cushion 6, discharge resistance 11, water temperature sensing Device 13 and wire harness fixing support 14.

Described main box 1 is internal, and dc-link capacitance 7 is arranged in side on main box 1 base plate；IGBT module 3 is fixed On main box 1 base plate of dc-link capacitance 7 opposite side；By O 15 between IGBT module 3 and main box 1 Realize water channel to seal.Driving plate 4 to be fixedly connected on above IGBT module 3, current sensor 12 is disposed relative to direct current The side of the IGBT module 3 of bus capacitor, described driving plate 4 is connected with current sensor 12；AC busbar 10 one end Being fixed on the exchange outlet side of described IGBT module 3, AC busbar 10 other end is through described current sensor 12 Detection hole is connected with exchanging connector 30；DC busbar assembly is walked around IGBT module both sides and is connected with dc-link capacitance 7； This arrangement form achieves the unidirectional current come by battery and flows through dc-link capacitance 7, IGBT successively through DC busbar assembly 9 The AC of module 3, realizes unidirectional current to the inversion of alternating current through IGBT module 3, by the exchange of IGBT module 3 Side is connected with AC busbar 10 and then exports three-phase alternating current to motor.

Described AC busbar 10 realizes monitoring in real time of AC current through the detection hole of current sensor 12, it is simple to electricity Machine is controlled.Described current sensor 12 is preferably used three form current sensors, in order to realize structure compacter, It is also possible to use and drive the onboard current sensor of plate 4 or be installed on three separate current sensors of main box 1.

Described Y capacitance 8 is arranged between main box 1 sidewall that DC busbar assembly 9 is adjacent and DC busbar assembly 9 It is connected；For eliminating the differential mode interference of extraneous input.

Described main box 1 is outside, and water channel seal cover board 16 and described sealing ring 17 realize the sealing of opposite side water channel.Institute The water channel for cooling down above-mentioned IGBT module 3 of connection it is provided with inside and outside the main box 1 stated；Described main box 1 is opened It is provided with the circular hole for installing straight-through water pipe；On described main box, the other both sides of IGBT module 3 are respectively disposed with discharge resistance 11 and cooling-water temperature sensor 13；The wire harness of described discharge resistance 11 is connected with described DC busbar assembly 9；Described water temperature The wire harness of sensor is fixed on water inlet or the outlet of the water channel of main box 1, and cooling-water temperature sensor 13 is also dependent on demand for control Only it is arranged in water channel water inlet or water channel outlet.The low voltage wiring harness of described cooling-water temperature sensor 13 is with described driving plate 4 even Connect.

On described main box 1 base plate, the opposite side at dc-link capacitance 7 is further fixed on metal rack 5, described IGBT Module 3 is arranged on the inside of metal rack 5, metal rack 5 and on be provided with heat radiation rubber cushion 6, heat radiation rubber cushion 6 upper surface and Plate 4 is driven to be connected, heat radiation rubber cushion 6 one end and the water channel extending to main box 1, it is achieved to drive the heat radiation of plate 4 heater element. The described length and width driving plate 4 keep consistent with IGBT module 3, are not take up exceptional space, meet compactedness design requirement. The application of metal rack 5 can realize driving plate local temperature to reduce about 10 DEG C.Described driving plate 4 simultaneously by bolt and The mode of pad is connected in described IGBT module 3, and this connected mode improves the resistance to shock driving plate 4 can with connection By property, it is particularly suited for the form that electric machine controller is vertically-mounted.Described driving plate 4 arranges 12 pin connectors and institute The current sensor 12 stated and the low voltage wiring harness of described cooling-water temperature sensor 13 connect, and 50 pins arranged by described driving plate Connector is connected with described panel 21 by winding displacement 28, and this strand design achieves sensor signal by nearer driving Dynamic plate 4 is sent to panel 21, shortens wire harness length, improves wire harness connection reliability and electric machine controller compactedness. The application of winding displacement 28 reduces the volume and weight of wire harness, simultaneously facilitates electric machine controller assembling.

Described dc-link capacitance 7 is thin-film capacitor, is fixed on above-mentioned main box 1 boss by four bolts, and direct current is female Line capacitance 7 bottom has and the convex tendon of main box groove fit, and dc-link capacitance 7 and main box 1 junction are provided with vibration damping rubber cushion 6.Convex tendon achieves and guides when dc-link capacitance 7 assembles and share shear stress suffered by a part of connecting bolt；Vibration damping rubber cushion After 18 compressions, thickness is 1mm, it is achieved to dc-link capacitance 7 and the protection of connecting bolt during electric machine controller vibration, improve The reliability that dc-link capacitance 7 uses.

Described DC busbar assembly 9 includes that positive pole busbar and cathode bus bar, positive pole busbar and cathode bus bar are laminated, can Eliminate the stray inductance between busbar, between positive pole busbar and cathode bus bar, be provided with the insulating support of integrated injection moulding, it is achieved electrically Insulation, this integrated injection moulding structure can realize the reliability of master row insulating and the convenience of installation, reduces owing to assembling error is led The electric property caused reduces equivalent risk.Insulating support is positioned with described main box by alignment pin, and is secured by bolts in institute The main box stated.The buckle structure of insulating support is in order to realize described cooling-water temperature sensor wire harness and described Y capacitance 8 wire harness Clamping；The DC busbar assembly 9 positive and negative electrode electrical isolation described in convex rib structure realization of insulating support, insulating support local Expose described DC busbar assembly 9 surface so that described DC busbar assembly 9 dispels the heat.Positive pole busbar and cathode bus bar Insulation can also set by being installed on independent insulating support or carrying out insulation plastic packaging etc. respectively to positive pole busbar and cathode bus bar Meter realizes.Self-clinching nut is installed in the extension of described DC busbar assembly, and described discharge resistance wire harness passes through bolt and pressure Riveting nut is connected with described DC busbar assembly, it is achieved controller active discharge or passively discharge.Described Y capacitance 8 wire harness It is connected with described DC busbar assembly 9 by bolt and self-clinching nut.

Described AC busbar 10 includes U phase busbar, V phase busbar and W phase busbar.IGBT is fixed in AC busbar 10 one end Module 3 exchanges outlet side, and the other end is connected through described current sensor 12 with exchanging connector 30, and then realizes exchange Electricity is monitored so that realizing the electric machine controller control to motor to motor output and size of current.This AC busbar 10 by with Busbar fixed support 44 clamping positions, it is achieved that only one of which installing hole when AC busbar 10 and IGBT module 3 are assembled Prevent AC busbar from rotating, improve the convenience of assembling simultaneously.

Described upper box 2 be internally provided with junction block assembly 19, barricade 20, panel 21, negative pole switching busbar 22, Positive pole switching busbar 23, air-conditioning connector 31, microswitch 25, air-conditioning insurance 24 and high direct voltage interlocking connector 27.

Described barricade 20 is arranged in inside the upper box 2 driven above plate 4, and for panel beating bending and molding, thickness is 1.2mm, Having six crimping studs on it, described panel 21 is secured by bolts on the crimping stud of described barricade 20.Control Arrange in making sheet 21 that 50 pin connectors are connected with described driving plate 4 by winding displacement 28, and panel 21 arranges one 40 pin connectors are connected with described low pressure connector 32 by low pressure switching wire harness 42, and panel 21 is arranged 2 pins Connector is connected with high-voltage interlocking wire harness 26, it is achieved the electromagnetic shielding to high tension apparatus.

The side that described junction block assembly 19 is corresponding with barricade in being fixed on upper box 2；Square on junction block assembly 19 Negative pole switching busbar 22, positive pole switching busbar 23 and high direct voltage interlocking connector 27, junction block assembly it is disposed with in shape draw-in groove Offer slotted hole on 19 and realize the high-voltage wiring harness outlet of air-conditioning connector 31；Installing hole is offered solid on junction block assembly 19 Determining microswitch 25, design buckle structure carries out the fixing of high-voltage interlocking wire harness 26 simultaneously.Described air-conditioning connector 31 High-voltage interlocking wire harness, microswitch 25 wire harness and with direct current connector 29 to join high direct voltage interlocking connector 27 low Pressure circuit in series；And signal is reached entire car controller through panel 21, it is achieved electric machine controller direct current connector 29 and sky Adjust connector 31 to be fitted without firmly or electric machine controller high pressure power-off when overhauling of uncapping, protect the low of high-voltage interlocking connector 27 Pressure circuit in series, operator's personal safety.Described negative pole switching busbar 22, positive pole switching busbar 23 patch with air-conditioning respectively The high-voltage wiring harness of part 31 and air-conditioning insurance 24 are connected, it is achieved direct current supply and the overcurrent protection to compressor of air conditioner；Described connects The high-voltage interlocking switch wire harness of line seat assembly 19, air-conditioning connector 34 and direct current connector 29 is series on panel 21.Connect Line seat assembly 19 carries out local heightening design, falls to inside electric machine controller with bolt during preventing assembling.

Described upper box 2 external stability has direct current connector 29, exchange connector 30, air-conditioning connector 31, low pressure to patch Part 32, panel lid 33 and described connector cover 34.Upper box 2 is designed with groove for installing two described porous plugs 35, described porous plug 35 effect is to realize electric machine controller inside to balance with external pressure, it is ensured that the internal temperature of electric machine controller Normally work during degree change.

Described connector cover 34 realizes sealing between upper box 2 by sealing ring 39, and this connector cover 34 side is designed Boss realizes triggering during work microswitch 25, and opposite side design boss is used for pasting high-voltage safety mark 36.Described control Plate lid 33 realizes sealing between upper box 2 by sealing ring 38, and this panel lid 33 side design boss is for described Panel 21 dispels the heat, and the heat eliminating medium that the boss of panel lid 33 and panel 21 use is not fully cured thermal paste 43, This thermal paste 43 can compensate for cumulative limit bigger between panel lid 33 and panel 21, ensures panel lid 33 simultaneously During dismounting, cohesive force will not damage panel 21.Described panel lid 33 opposite side design boss is used for pasting high-voltage safety mark Knowledge 36 and Product labelling 37.

Described main box 1 and upper box 2 realize location by two alignment pins 40, and the sealing ring 41 between passing through realizes Seal between casing.IGBT and dc-link capacitance is vertical puts during electric machine controller of the present utility model work, can be flexible Ground adapts to arrangement.

Above-described only preferred embodiment of the present utility model, and non-limiting protection domain of the present utility model.All Any modification, equivalent substitution and improvement etc. done within spirit of the present utility model and principle, are all contained in of the present utility model In protection domain.

Claims (10)

1. an electric vehicle motor controller, it is characterised in that: include the dc bus electricity being arranged in main box (1) Hold (7), IGBT module (3), drive plate (4), current sensor (12), AC busbar (10), DC busbar Assembly (9) and Y capacitance (8)；Also including upper box (2), it is total that described upper box (2) is internally provided with junction block Become (19), barricade (20), panel (21), negative pole switching busbar (22), positive pole switching busbar (23), sky Adjust connector (31), microswitch (25), air-conditioning insurance (24) and high direct voltage interlocking connector (27)；Described Upper box (2) external stability has direct current connector (29), exchange connector (30), air-conditioning connector (31), low pressure Connector (32), panel lid (33) and connector cover (34)；

Described dc-link capacitance (7) is fixed on side on main box (1) base plate；IGBT module (3) is fixed on direct current On main box (1) base plate of bus capacitor (7) opposite side；Plate (4) is driven to be fixedly connected on IGBT module (3) top, Current sensor (12) is disposed relative to the side of the IGBT module (3) of dc-link capacitance (7), described driving Plate (4) is connected with current sensor (12)；The friendship of described IGBT module (3) is fixed in AC busbar (10) one end Stream outlet side, AC busbar (10) other end through described current sensor (12) detection hole with exchange connector (30) It is connected；DC busbar assembly (9) walks around IGBT module (3) both sides and is connected with dc-link capacitance (7)；Y capacitance (8) It is arranged between main box (1) sidewall that DC busbar assembly (9) is adjacent and is connected with DC busbar assembly (9)；

Described barricade (20) is arranged in upper box (2) inner side driving plate (4) top；Described panel (21) It is fixed on barricade (20), and respectively at driving plate (4), low pressure connector (32) and high-voltage interlocking wire harness to connect； The side that described junction block assembly (19) is corresponding with barricade (20) in being fixed on upper box (2)；Junction block assembly (19) it is disposed with negative pole switching busbar (22), positive pole switching female (23) row and high direct voltage in the draw-in groove on and interlocks connector (27), junction block assembly (19) there is the wire hole of high-voltage wiring harness；The high-voltage interlocking line of described air-conditioning connector (31) Bundle, microswitch (25) wire harness and the low pressure with the direct current connector (29) high direct voltage interlocking connector (27) to joining Circuit in series；Described negative pole switching busbar (22), positive pole switching busbar (23) respectively with the height of air-conditioning connector (31) Line ball bundle and air-conditioning insurance (24) are connected；Described junction block assembly (19), air-conditioning connector (31) and direct current connector (29) high-voltage interlocking switch wire harness is series on panel (21)；Described upper box (2) and main box (1) are fixed It is tightly connected.

Electric vehicle motor controller the most according to claim 1, it is characterised in that described main box (1) is inside and outside Both sides are provided with the water channel for cooling down above-mentioned IGBT module (3) of connection；Described main box (1) offers for pacifying The circular hole of the straight-through water pipe of dress；On described main box, IGBT module (3) is additionally respectively disposed with discharge resistance (11) in both sides With cooling-water temperature sensor (13)；The wire harness of described discharge resistance (11) is connected with described DC busbar assembly (9)；Institute The wire harness of the cooling-water temperature sensor stated is fixed on water inlet or the outlet of the water channel of main box (1), described cooling-water temperature sensor (13) Low voltage wiring harness be connected with described driving plate (4).

Electric vehicle motor controller the most according to claim 1, it is characterised in that described main box (1) base plate On be further fixed on metal rack (5) at the opposite side of dc-link capacitance (7), described IGBT module (3) is arranged on gold Belong to the inside of support (5), metal rack (5) and be above provided with upper surface and driving plate (4) the heat radiation rubber cushion (6) that is connected, Heat radiation rubber cushion (6) one end and the water channel extending to main box (1).

Electric vehicle motor controller the most according to claim 1, it is characterised in that described dc-link capacitance (7) For thin-film capacitor, being secured by bolts on the boss of above-mentioned main box (1), dc-link capacitance (7) bottom has and main tank The convex tendon of the groove fit of body (1), dc-link capacitance (7) and main box (1) junction are provided with vibration damping rubber cushion (18).

Electric vehicle motor controller the most according to claim 1, it is characterised in that described DC busbar assembly (9) Including positive pole busbar and cathode bus bar；The insulating support being fixed on main box (1) is had between positive pole busbar and cathode bus bar, Buckle and convex tendon is had on insulating support.

Electric machine controller the most according to claim 1, it is characterised in that described junction block assembly (19) is described The bolt that is connected with described exchange connector (30) of AC busbar (10) below be provided with baffle plate.

Electric vehicle motor controller the most according to claim 1, it is characterised in that described upper box (2) has recessed Groove, for installing two described porous plugs (35), offers panel lid (33) and the peace of connector cover (34) in groove Dress hole.

Electric vehicle motor controller the most according to claim 1, it is characterised in that described connector cover (34) On have the boss for touching microswitch (25).

Electric vehicle motor controller the most according to claim 1, it is characterised in that described panel lid (33) On have the boss dispelled the heat for described panel (21).

Electric vehicle motor controller the most according to claim 1, it is characterised in that described current sensor (12) It is three form current sensors.