CN221263663U - Motor controller and electric vehicle - Google Patents

Abstract

The application provides a motor controller and an electric vehicle, and relates to the technical field of motors. The motor controller comprises a power module, a capacitor assembly, an alternating current assembly, a main control board and a shell; the power module, the main control board, the alternating current assembly install in one side of casing, wherein power module set up in the main control board between the casing, the electric capacity subassembly includes electric capacity NTC pencil and electric capacity, electric capacity NTC pencil with the electric capacity is connected, just electric capacity NTC pencil with the electric capacity install in the opposite side of casing, the casing is installed in predetermineeing motor casing. The motor controller can realize the integrated arrangement of the motor controller and the technical effect of improving the space utilization rate.

Description

Motor controller and electric vehicle

Technical Field

The application relates to the technical field of motors, in particular to a motor controller and an electric vehicle.

Background

At present, most of motor controllers are independent motor controller schemes and are structurally independent from an electric drive assembly, and three-phase copper bars are connected in a mode that the controllers are exposed out of one section and are inserted into a motor cavity, so that the three-in-one drive assembly is formed. Generally, the scheme of the independent motor controller causes a plurality of parts in the controller, and the cost is increased; meanwhile, an independent motor controller needs a relatively regular installation space, which is generally right above a motor, so that the space between the upper part of a half shaft and the upper part of the motor is not well utilized, the envelope of an electric drive assembly is difficult to make small, and the whole vehicle arrangement is not facilitated; especially in a high-end rear-drive vehicle type, the power requirement is large, but the arrangement space is very limited, and the space of an acoustic package is often reserved, so that the electric drive assembly scheme of the independent motor controller cannot meet the arrangement requirement.

Disclosure of utility model

The application aims to provide a motor controller and an electric vehicle, which can realize the integrated arrangement of the motor controller and the technical effect of improving the space utilization rate.

In a first aspect, the application provides a motor controller, comprising a power module, a capacitor assembly, an alternating current assembly, a main control board and a shell;

The power module, the main control board, the alternating current assembly install in one side of casing, wherein power module set up in the main control board between the casing, the electric capacity subassembly includes electric capacity NTC pencil and electric capacity, electric capacity NTC pencil with the electric capacity is connected, just electric capacity NTC pencil with the electric capacity install in the opposite side of casing, the casing is installed in predetermineeing motor casing.

In the implementation process, the motor controller installs the power module, the main control board and the alternating current assembly on one side of the shell and the capacitor NTC wire harness and the capacitor on the other side of the shell by arranging the shell, so that the design of a closed shell is canceled, and the shell only keeps the functions of installing and cooling the core power components; in addition, through setting up the main control board, retrench internal connection pencil, carry out integrated design with internal part, reduce the connection, reduce volume etc. in order to solve the current trinity electricity and drive the big inapplicable rear-drive of volume and the problem that numerous costs of spare part are high; therefore, the motor controller can realize the integrated arrangement of the motor controller and the technical effect of improving the space utilization rate.

Further, the shell is a supporting type shell, a first module mounting groove is formed in one side of the supporting type shell, a second module mounting groove is formed in the other side of the supporting type shell, the power module is mounted in the first module mounting groove, and the capacitor assembly is mounted in the second module mounting groove.

In the implementation process, the main shell adopts a supporting type design, the controller fully-wrapped large shell is canceled, the small shell only supporting the power module and the capacitor is adopted, the power part of the motor controller, the capacitor and the shell form a modularized design, and the motor controller is integrally put into the integrated motor large shell, so that the enveloping volume of the controller is effectively reduced.

Further, the power module is fixedly installed on one side of the shell through a screw, the capacitor is fixedly installed on the other side of the shell through the screw, and the power module, the shell and the capacitor form a laminated structure.

Further, the motor controller further comprises a high-voltage connector and a low-voltage connector, the high-voltage connector is installed on the shell, the low-voltage connector is arranged on the main control board, and the high-voltage connector and the low-voltage connector are respectively connected with the main control board.

Further, the motor controller further comprises an EMC filter, and the EMC filter is arranged between the high-voltage connector and the main control board.

In the implementation process, the EMC filter is designed by utilizing the Z-direction space of the high-voltage input copper bar of the capacitor, so that the filtering and current-carrying functions with compact structures are formed.

Further, the motor controller further comprises a cover plate, the cover plate is mounted on the preset motor shell, the cover plate is provided with a low-pressure opening, and the low-pressure connector is exposed out of the cover plate through the low-pressure opening.

Further, the motor controller further comprises an adapter plate, wherein the adapter plate and the pressure connector form radial sealing, and the adapter plate and the cover plate form end face sealing.

Further, the motor controller further comprises a cooling loop, and the cooling loop is matched with the shell and the preset motor shell.

Further, the motor controller further includes a plurality of isolation vertical walls mounted to the housing.

In the implementation process, the EMC shielding design of the whole motor controller is that a high-voltage area, a low-voltage area and a low-voltage plug-in area are arranged on the main control board and isolation is arranged, and vertical walls of the high-voltage area, the low-voltage area and the low-voltage plug-in area are also arranged on the shell and the cover plate for isolation.

In a second aspect, the present application provides an electric vehicle comprising a motor controller as claimed in any one of the first aspects.

Additional features and advantages of the disclosure will be set forth in the description which follows, or in part will be obvious from the description, or may be learned by practice of the disclosure.

In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a motor according to an embodiment of the present application;

fig. 2 is a schematic diagram of an explosion structure of a motor according to an embodiment of the present application;

Fig. 3 is a schematic front view of a motor controller according to an embodiment of the present application;

fig. 4 is a schematic diagram of a back structure of a motor controller according to an embodiment of the present application;

fig. 5 is an exploded schematic view of a motor controller according to an embodiment of the present application.

Reference numerals: 1-a high voltage connector; 2-low voltage connector; 3-an alternating current assembly; 4-rotating the wire harness; a 5-EMC filter; 6-a power module; 7-a main control board; 8-a current sensor; 9-IGBT sealing rings; 10-capacitance NTC wire harness; 11-capacitance; 12-a housing; 13-a preset motor housing; 14-a first conductive seal ring; 15-a second conductive seal ring; 16-an adapter plate sealing ring; 17-an adapter plate; 18-cover plate; 19-an access panel; 20-ventilation valve.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present application.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present application and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present application will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or a point connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.

The embodiment of the application provides a motor controller and an electric vehicle, which can be applied to module integration of the motor controller; according to the motor controller, the power module, the main control board and the alternating current assembly are arranged on one side of the shell, the capacitor NTC wire harness and the capacitor are arranged on the other side of the shell, so that the design of a closed shell is omitted, and the shell only keeps the functions of installing and cooling core power components; in addition, through setting up the main control board, retrench internal connection pencil, carry out integrated design with internal part, reduce the connection, reduce volume etc. in order to solve the current trinity electricity and drive the big inapplicable rear-drive of volume and the problem that numerous costs of spare part are high; therefore, the motor controller can realize the integrated arrangement of the motor controller and the technical effect of improving the space utilization rate.

Referring to fig. 1 to 5, fig. 1 is a schematic structural diagram of a motor according to an embodiment of the present application; fig. 2 is a schematic diagram of an explosion structure of a motor according to an embodiment of the present application; fig. 3 is a schematic front view of a motor controller according to an embodiment of the present application; fig. 4 is a schematic diagram of a back structure of a motor controller according to an embodiment of the present application; fig. 5 is an exploded schematic view of a motor controller according to an embodiment of the present application; the motor controller comprises a power module 6, a capacitor assembly, an alternating current assembly 3, a main control board 7 and a shell 12;

Illustratively, the power module 6, the main control board 7 and the ac assembly 3 are mounted on one side of the housing 12, wherein the power module 6 is disposed between the main control board 7 and the housing 12, the capacitor 11 assembly includes a capacitor NTC wire harness 10 and a capacitor 11, the capacitor NTC wire harness 10 and the capacitor 11 are connected, the capacitor NTC wire harness 10 and the capacitor 11 are mounted on the other side of the housing 12, and the housing 12 is mounted in a preset motor housing 13.

Illustratively, the motor controller installs the power module 6, the main control board 7 and the alternating current assembly 3 on one side of the shell 12 by arranging the shell 12, and the capacitor NTC wire harness 10 and the capacitor 11 are installed on the other side of the shell 12, so that the design of the closed shell 12 is omitted, and the shell 12 only keeps the installation and cooling of core power components; in addition, through setting up the main control board 7, retrench the internal connection pencil, carry out integrated design with the internal part, reduce the connection, reduce volume etc. in order to solve the current trinity electricity and drive the big inapplicable back drive of volume and the numerous problem with high costs of spare part; therefore, the motor controller can realize the integrated arrangement of the motor controller and the technical effect of improving the space utilization rate.

Illustratively, the housing 12 is a supporting housing 12, one side of the supporting housing 12 is provided with a first module mounting slot, the other side of the supporting housing 12 is provided with a second module mounting slot, the power module 6 is mounted in the first module mounting slot, and the capacitor 11 assembly is mounted in the second module mounting slot.

In an exemplary embodiment of the present application, the main housing 12 is designed in a supporting manner, the controller is omitted from the fully-wrapped large housing 12, the small housing 12 only supporting the power module 6 and the capacitor 11 is used, the power part of the motor controller, the capacitor 11 and the housing 12 form a modularized design, and the motor controller is integrally put into the integrated motor large housing 12, so that the envelope volume of the controller is effectively reduced. Meanwhile, the internal circuit board of the controller adopts an integrated design to form a main control board 7, so that the connection of wiring harnesses is reduced, the volume is further reduced, and the number of parts is reduced.

Illustratively, the power module 6 is fixedly mounted on one side of the housing 12 by screws, the capacitor 11 is fixedly mounted on the other side of the housing 12 by screws, and the power module 6, the housing 12 and the capacitor 11 form a laminated structure.

The power module 6 is fixed on the housing 12 by 8 screws, and the capacitor 11 is fixed on the other surface of the housing 12 by 5 screws, so that a laminated structure is formed with the housing 12 and the power module 6. 3 pairs P, N of terminals are respectively connected with P, N terminals of the power module 6 through screws, the main control board 7 is fixed with the power module 6 through 8 self-tapping screws, meanwhile, 10 screws are fixed with the shell 12, through holes are formed in the main control board 7, and signal terminals of the power module 6 penetrate through the through holes in the main control board 7 and are welded.

Illustratively, the motor controller further includes a high-voltage connector 1 and a low-voltage connector 2, the high-voltage connector 1 is mounted on the housing 12, the low-voltage connector 2 is disposed on the main control board 7, and the high-voltage connector 1 and the low-voltage connector 2 are respectively connected with the main control board 7.

The motor controller further comprises an EMC filter 5, the EMC filter 5 being arranged between the high-voltage connector 1 and the main control board 7.

The EMC filter 5 is designed by using the Z-space of the high-voltage input copper bar of the capacitor 11, and has compact filtering and current-carrying functions. The shell 12, the capacitor 11, the power module 6, the main control board 7, the EMC filter 5 and other parts form a core module of the motor controller, and the motor controller has the characteristics of compact structure, high integration level and few parts, is small in whole size, can be adapted to different motor shells 12, is electrically driven by carrying different power demands, and realizes platform compatibility and expansion.

The EMC filter 5 is illustratively composed of a dc copper bar, a magnetic ring, a filter capacitor 11, and a grounding copper sheet, the dc copper bar and the grounding copper sheet are integrally injection molded, a magnetic ring mounting groove and a filter capacitor 11 mounting groove are left on the injection molding structure, and the magnetic ring and the filter capacitor 11 are fixed after being placed in the corresponding grooves. The pin 11 of the filter capacitor is soldered with the grounding copper sheet, the connection with the direct current copper bar is realized through the middle connecting copper sheet, one end of the middle connecting copper sheet is soldered on the direct current copper bar through resistance welding, and the other end of the middle connecting copper sheet is connected with the pin 11 of the filter capacitor through soldering.

Illustratively, the motor controller further comprises a cover plate 18, the cover plate 18 being mounted to the preset motor housing 13, the cover plate 18 being provided with a low pressure opening through which the low pressure connector 2 exposes the cover plate 18.

Illustratively, the motor controller further comprises an adapter plate 17, the adapter plate 17 forming a radial seal with the crimp insert 2, and the adapter plate 17 forming an end face seal with the cover plate 18.

Illustratively, the motor controller core module is integrally put into the motor housing 12, the housing 12 is fixed on the motor housing 12 through 7 bolts, the cover plate 18 is fixed on the motor housing 12 through 12 bolts, the cover plate 18 forms a surrounding and protecting structure for the controller core module together with the motor housing 12, the low-voltage connector 2 is exposed through the opening of the cover plate 18, and the adapter plate 17 forms a radial seal with the low-voltage connector 2 and also forms an end face seal with the cover plate 18. The alternating current assembly 3 is provided with a sealing ring and sealing glue, the sealing ring and the motor shell 12 are matched to form radial sealing, and the sealing glue seals the copper bars and the plastic coating of the alternating current assembly 3. The whole controller forms a sealed whole body to achieve the IP67 protection level.

Illustratively, the whole high-voltage loop of the motor controller enters through the high-voltage connector 1, the capacitor 11 is connected with the IGBT in parallel through the EMC filter 5 to the capacitor 11, three-phase alternating current is output after the switching control of the IGBT, and the three-phase alternating current is transmitted to the motor three-phase line by the alternating current assembly 3 to drive the motor. The whole high-voltage loop has short path and few devices.

Illustratively, the motor controller further includes a cooling circuit that is disposed in mating relationship with the housing 12, the preset motor housing 13.

Illustratively, the whole motor controller cooling circuit is formed by entering through a water inlet on the motor shell 12, the motor shell 12 is matched with the main shell 12 in the Z direction, cooling water is led into the main shell 12 by using an O-shaped rubber sealing ring for radial sealing through the water inlet, a water inlet and a water outlet are arranged in the main shell 12, the water channel main body is matched with the IGBT and the IGBT sealing ring 9 to realize sealing, the cooling water dissipates heat to the IGBT through the water channel main body, flows back to the motor shell 12 from the outlet, the water inlet is formed on the motor shell 12, is matched with the motor controller main shell 12, and is led back into the motor shell 12 by sealing the end face of the O-shaped rubber sealing ring.

Illustratively, the motor controller further includes a plurality of isolation vertical walls mounted to the housing 12.

The EMC shielding of the entire motor controller is designed, for example, to provide a high voltage area, a low voltage area and a low voltage plug-in area on the main control board 7 and to provide isolation, and to provide vertical walls of the high voltage area, the low voltage area and the low voltage plug-in area on the housing 12 and the cover 18.

In some embodiments, the first electrically conductive seal ring 14; the second conductive sealing ring 15 is used for sealing the main control board 7.

Illustratively, the present application provides an electric vehicle including a motor controller as shown in fig. 1-5.

An exemplary embodiment of the present application is directed to providing a motor controller of a deep integrated three-in-one electric drive system for a pure electric vehicle, which is mainly characterized in that a closed shell 12 is canceled, the shell 12 only retains the functions of installing and cooling core power components, simplifies internal connection wiring harnesses, integrates internal components, reduces connection, reduces volume, and the like, so as to solve the problems that the existing three-in-one electric drive is large in volume and cannot be suitable for rear drive arrangement, and numerous parts are high in cost; in order to achieve the above objective, the motor controller provided by the embodiment of the present application is a deep integrated three-in-one motor controller, and specific examples are as follows:

1. The high-voltage connector 1 is used for conveying the whole vehicle high-voltage direct current into the motor controller, a positive copper nose and a negative copper nose are formed on the high-voltage connector and are connected to the EMC filter 5 through bolts, and meanwhile, a sealing ring is designed on the high-voltage connector 1 and a hole is formed in the cover plate 18 to form radial sealing;

2. The low-voltage connector 2 is used for interacting low-voltage control signals with the whole vehicle, and the main low-voltage connector 2 is installed by using a low-voltage wire harness, wherein one section of the low-voltage wire harness is fixed on the shell 12, and the other section of the low-voltage wire harness is inserted with a connector on a circuit board. In the embodiment of the application, a direct welding mode is adopted, the intermediate connection of a wire harness is removed, a signal terminal of the low-voltage connector 2 is directly welded to the main control board 7, a double-layer radial sealing ring is designed on the low-voltage connector 2, and the double-layer radial sealing ring is matched with the adapter plate 17 to form sealing protection;

3. The alternating current assembly 3 is used for inputting three-phase current of a driving motor to the motor from a controller end, an integrated injection structure is adopted, two O-shaped sealing rings are designed on the alternating current assembly 3 and are matched with a motor shell 12 to form sealing, the motor and the electric control are isolated, meanwhile, sealing glue is filled in an opening at the middle section, reliable sealing is formed between a copper bar and an injection molding material, and high-temperature oil gas in the motor is isolated;

4. The rotating wire harness 4 is used for transmitting and feeding back a motor rotating signal and an internal temperature measurement signal to a controller end, adopts a three-section structure, is sealed by glue pouring between a PIN needle at the middle section and a plastic shell, and is respectively connected with an electric control and a motor at the other two ends;

5. The EMC filter 5 serves to suppress high voltage electromagnetic radiation and conduction while integrating a dc copper bar to deliver high voltage to the capacitor 11. The EMC filter 5 is composed of copper bars, a magnetic ring and a filter capacitor 11, one end of the EMC filter is connected with the high-voltage connector 1, and the other end of the EMC filter is connected with the copper bars of the capacitor 11. The EMC filtering and direct current carrying functions are integrated, the structural path design is short, the functions are completed in a small part, and the cost can be reduced;

6. The power module 6 adopts a mainstream HPD packaging design, and the same structure can be matched with different powers, so that the compatibility and expansibility of products are enhanced. The power module 6 is fixedly connected to the shell 12 through bolts and is cooled through a water channel formed in the shell 12;

7. The main control board 7 combines the main control board and the driving board, reduces the circuit connection between circuit boards, reduces the volume, and forms a small-volume core control module by matching the shell 12 and the capacitor 11, so that the main control board is convenient to be compatible in different models. The main control board 7 is fixedly connected to the module and the shell 12 through bolts, and meanwhile, interaction signals on the module are welded to the main control board 7 through PIN needles;

8. The current sensor 8 is used for detecting alternating current in real time, the current sensor 8 and the module are connected and fixed on the shell 12 through bolts, signals of the current sensor are output through PIN needles, and the PIN needles penetrate through holes of the main control board 7 to be welded so as to achieve the purpose of signal interaction;

9. The IGBT sealing ring 9 has the function of forming stable and reliable sealing between the module and the shell 12, and cooling liquid does not leak out in a cooling water channel;

10. The capacitor 11 plays a role in stabilizing voltage, and the capacitor 11 is fixed on the back of the shell 12 through bolting, so that heat dissipation can be performed by the shell 12. The Y-shaped capacitor 11 is integrated inside the capacitor 11 and matched with the EMC filter 5 to improve EMC performance, and the NTC temperature measurement real-time monitoring capacitor 11 temperature is arranged inside the capacitor 11;

11. The shell 12 is used for supporting the power module 6 and the capacitor 11, and is provided with a cooling water channel for radiating heat of the power module 6 and the capacitor 11. The housing 12 eliminates the wrap-around design of the mainstream independent motor controller, retains only the primary fixed functions of the power module 6 and capacitor 11, and is sandwiched therebetween, greatly reducing volume and weight. The shell 12 is also designed with a cavity, and is matched with the main control board 7 to form isolation shielding for high voltage and low voltage, so that EMC effect is greatly improved;

12. The water nozzle sealing ring has the function of ensuring that the waterway connection between the controller shell 12 and the motor shell 12 is reliably sealed, and each motor controller product is provided with two water nozzle sealing rings with the same specification by matching with the water inlet and the water outlet of the shell 12;

13. The conductive sealing ring has the function of sealing the assembly gap between the cover plate 18 and the high-low voltage isolation wall in front of the main control board 7, so that a high-low voltage cavity which is completely sealed and isolated can be formed in the area above the board, and the EMC effect is enhanced;

14. The function of the adapter plate sealing ring 16 is to seal the adapter plate 17 and the cover plate 18, and the end face is sealed by adopting a standard O-shaped ring design;

15. The function of the adapter plate 17 is to absorb and buffer the installation error of the low-voltage connector 2, the adapter plate 17 and the low-voltage connector 2 are radially sealed, and meanwhile, an end face seal is formed by the adapter plate sealing ring 16 and the cover plate 18;

16. The cover plate 18 is used for being matched with the motor shell 12 to form a complete enclosure to form protection for internal parts of the controller, and the cover plate 18 and the motor shell 12 are mounted in a sealing mode through sealant. The cover plate 18 is provided with the convex high-voltage connector 1 for installation, and the design has the advantages that the extraction direction of the high-voltage connector 1 can be conveniently adjusted under the condition that the internal structural part is unchanged, and different whole vehicle arrangement requirements can be adapted;

17. The service panel 19 is convenient for the installation and the disassembly of the high-voltage connector 1, and the service panel 19 and the cover panel 18 are installed in a sealing way through sealant;

18. The air-permeable valve 20 adopts a buckle-type air-permeable valve 20, and is pressed on the shell 12 to be fixed, so that the effect of balancing the pressure intensity inside and outside the cavity of the controller is achieved.

The embodiment of the application provides a deep integration three-in-one motor controller, which at least comprises the following beneficial effects:

1. According to the embodiment of the application, the fully-wrapped motor controller shell 12 is eliminated, the small shell 12 is adopted to integrate the power module 6 and the capacitor 11 to form modularization, and the whole motor controller is put into the motor shell 12, so that the envelope volume of the motor controller is effectively reduced, the whole size of the electric drive assembly is reduced, and the arrangement of a rear drive vehicle type is facilitated.

2. According to the embodiment of the application, a scheme that a plurality of circuit boards are integrated into the main control board 7 is adopted, only one circuit board is arranged in the controller, so that the wire harness connected between the boards is reduced, and meanwhile, the wire harness connection is further reduced by adopting a mode that the pressure connector 2 is directly welded on the main control board 7. Further reduces the volume, reduces the number of parts and achieves the aim of reducing the cost of the technical proposal.

In all embodiments of the present application, "large" and "small" are relative terms, "more" and "less" are relative terms, "upper" and "lower" are relative terms, and the description of such relative terms is not repeated herein.

It should be appreciated that reference throughout this specification to "in this embodiment," "in an embodiment of the present application," or "as an alternative" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in this embodiment," "in an embodiment of the application," or "as an alternative embodiment" in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Those skilled in the art will also appreciate that the embodiments described in the specification are alternative embodiments and that the acts and modules referred to are not necessarily required for the present application.

In various embodiments of the present application, it should be understood that the sequence numbers of the foregoing processes do not imply that the execution sequences of the processes should be determined by the functions and internal logic of the processes, and should not be construed as limiting the implementation of the embodiments of the present application.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the application shall be subject to the protection scope of the claims.

Claims (10)

1. The motor controller is characterized by comprising a power module, a capacitor assembly, an alternating current assembly, a main control board and a shell;

The power module, the main control board, the alternating current assembly install in one side of casing, wherein power module set up in the main control board between the casing, the electric capacity subassembly includes electric capacity NTC pencil and electric capacity, electric capacity NTC pencil with the electric capacity is connected, just electric capacity NTC pencil with the electric capacity install in the opposite side of casing, the casing is installed in predetermineeing motor casing.

2. The motor controller of claim 1 wherein the housing is a support housing, a first module mounting slot is provided on one side of the support housing, a second module mounting slot is provided on the other side of the support housing, the power module is mounted in the first module mounting slot, and the capacitive assembly is mounted in the second module mounting slot.

3. The motor controller according to claim 1 or 2, wherein the power module is fixedly mounted on one side of the housing by a screw, the capacitor is fixedly mounted on the other side of the housing by a screw, and the power module, the housing, and the capacitor form a laminated structure.

4. The motor controller of claim 1, further comprising a high voltage connector and a low voltage connector, wherein the high voltage connector is mounted to the housing, the low voltage connector is disposed on the main control board, and the high voltage connector and the low voltage connector are connected to the main control board, respectively.

5. The motor controller of claim 4, further comprising an EMC filter disposed between the high voltage connector and the main control board.

6. The motor controller of claim 4, further comprising a cover plate mounted to the preset motor housing, the cover plate being provided with a low pressure opening through which the low pressure connector exposes the cover plate.

7. The motor controller of claim 6 further comprising an adapter plate, the adapter plate forming a radial seal with the pressure connector and the adapter plate forming an end face seal with the cover plate.

8. The motor controller of claim 1, further comprising a cooling circuit configured to mate with the housing and the predetermined motor housing.

9. The motor controller of claim 1, further comprising a plurality of isolation vertical walls mounted to the housing.

10. An electric vehicle comprising a motor controller as claimed in any one of claims 1 to 9.