CN219660153U - New energy automobile motor controller - Google Patents

Abstract

The utility model discloses a new energy automobile motor controller, which comprises an IGBT power module, a bottom plate, a film capacitor and a filter assembly, wherein a mounting seat for mounting the IGBT power module is arranged on a first side surface of the bottom plate; one side of the thin film capacitor is close to the mounting seat and is electrically connected with the IGBT power module, and a limit groove is formed on the side edge of the mounting seat and used for limiting the thin film capacitor; the filter component is arranged on the first side face of the bottom plate, and the filter component is connected with the other side of the thin film capacitor. Is used for solving the problem of large occupied space in the prior art.

Description

New energy automobile motor controller

Technical Field

The utility model relates to the technical field of motor control, in particular to a new energy automobile motor controller.

Background

Along with the popularization of new energy automobiles, how to improve the integration level of each module system and reduce the production cost of materials, processes and the like on the premise of ensuring that the performance of the whole automobile is not influenced becomes an important research direction of each automobile part supplier.

However, most of the existing motor controllers are composed of a plurality of relatively independent assembled power modules and circuit components, the circuit components are assembled separately, and a bracket structure is additionally arranged corresponding to main circuit components such as capacitor components, so that space waste is easily caused, and the whole motor controller occupies a large space.

Disclosure of Invention

The utility model mainly aims to provide a new energy automobile motor controller which is used for solving the problem of large occupied space in the prior art.

In order to achieve the above object, the present utility model provides a new energy automobile motor controller, comprising:

an IGBT power module;

the first side surface of the bottom plate is provided with an installation seat for installing the IGBT power module;

the thin film capacitor is arranged on one side of the thin film capacitor close to the mounting seat and is electrically connected with the IGBT power module, and a limit groove is formed on the side edge of the mounting seat and used for limiting the thin film capacitor; and

the filtering component is arranged on the first side face of the bottom plate and connected with the other side of the thin film capacitor.

In an embodiment, the new energy automobile motor controller further comprises a control board, and the control board cover is arranged on the mounting seat and is electrically connected with the IGBT power module.

In an embodiment, the new energy automobile motor controller further comprises a shielding plate, the mounting seat is open, the shielding plate covers the mounting seat through the opening, and the shielding plate is blocked between the IGBT power module and the control board.

In one embodiment, the second side of the bottom plate is formed with a heat dissipation cavity, and the heat dissipation cavity is formed with a plurality of flow channels.

In an embodiment, a plurality of pins are arranged on the runners, and a plurality of heat dissipation grooves are arranged between adjacent runners.

In an embodiment, a cover plate for sealing the heat dissipation cavity is arranged on the second side surface of the bottom plate, and a water inlet end for communicating with the heat dissipation cavity is arranged on the cover plate.

In one embodiment, the filter assembly includes a filter structure and a support structure that forms a detent for locating the filter structure.

In an embodiment, the filtering structure is hollow, the filtering assembly further includes a first connection structure, a second connection structure and a third connection structure, the first connection structure is disposed through the filtering structure, one end of the second connection structure is electrically connected with the first connection structure and the thin film capacitor, and the other end of the second connection structure is hung on the thin film capacitor; the third connecting structure is arranged on the supporting structure, one end of the third connecting structure is connected with the first connecting structure, and the other end of the third connecting structure is used for being connected with an external high-voltage line.

In an embodiment, the new energy automobile motor controller further comprises a three-phase output module, the three-phase output module is installed on one side face of the bottom plate, the three-phase output module is provided with a copper bar structure, one end of the copper bar structure is connected with the IGBT power module, and the other end of the copper bar structure penetrates through the bottom plate.

In an embodiment, the new energy automobile motor controller further comprises an upper cover, wherein the upper cover is buckled on the first side surface of the bottom plate, and the upper cover is provided with a high-voltage interface used for being connected with an external high-voltage line.

Compared with the prior art, the utility model has the following beneficial effects:

the first side of the bottom plate is provided with a mounting seat for mounting the IGBT power module; the thin film capacitor is arranged, so that the use of a capacitor bracket is eliminated, and the assembly process is effectively simplified; one side of the film capacitor is close to the mounting seat and is electrically connected with the IGBT power module, so that wiring difficulty is reduced, wiring design is reduced, a limit groove is formed on the side edge of the mounting seat and used for limiting the film capacitor, and the filter component is arranged on the first side face of the bottom plate and is connected with the other side of the film capacitor, so that the whole new energy automobile motor controller is flat, the whole structure is more compact, mechanical strength is effectively optimized, assembly flow can be simplified, and carrying is facilitated; the IGBT power module is installed through the installation seat, the film capacitor is limited through the limiting groove, the filter assembly is fixedly connected to the bottom plate, position deviation is avoided, and the assembly, the use and the transfer are convenient; the IGBT single-tube parallel discrete technology is adopted, so that the cost of a power device and the cost of a controller assembly are effectively reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a new energy automobile motor controller according to an embodiment of the present utility model;

FIG. 2 is a diagram showing a disassembled state of a motor controller of a new energy automobile according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a portion of a motor controller for a new energy vehicle according to an embodiment of the present utility model;

FIG. 4 is an exploded view of one embodiment of the new energy automobile motor controller of the present utility model;

FIG. 5 is an exploded view of one embodiment of a floor of the present utility model;

fig. 6 is a schematic structural diagram of a filtering component according to an embodiment of the present utility model.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if all the directional indicators in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, if the specific posture is changed, the directional indicators are correspondingly changed.

If the description of "first", "second", etc. in this disclosure is for descriptive purposes only, it is not to be construed as indicating or implying a relative importance thereof or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. If the description of "a and/or B" is referred to in the present utility model, it means that either scheme a or scheme B is included, or both scheme a and scheme B are included. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Along with the implementation of the 'two-carbon' policy, the domestic economic transformation, the rapid development of green energy and the continuous deepening of structural reform of the energy supply side, and the implementation of the 'fourteen-five' planning, new energy automobiles are rapidly developed and popularized. The development of new energy automobiles also drives the development of the industry of electric drive systems, and a motor controller is used as one of important components of the electric drive systems and is driven by the new energy automobiles, so that the market space in the future is rapidly expanded.

On the premise of ensuring that the performance of the whole automobile is not affected, the integration level of each module system is improved, the production cost of materials, processes and the like is reduced, and the method becomes an important research direction of suppliers of automobile parts.

However, most of the existing motor controllers are composed of a plurality of relatively independent assembled power modules and circuit components, the circuit components are assembled separately, and a bracket structure is additionally arranged corresponding to main circuit components such as capacitor components, so that space waste is easily caused, and the whole motor controller occupies a large space.

The utility model provides a new energy automobile motor controller which is used for solving the problem of large occupied space in the prior art.

Referring to fig. 1 to 6, the new energy automobile motor controller includes an IGBT power module 100, a base plate 200, a thin film capacitor 300, and a filter assembly 400. Wherein:

a first side of the base plate 200 is provided with a mounting seat 210 for mounting the IGBT power module 100;

one side of the thin film capacitor 300 is close to the mounting seat 210 and is electrically connected with the IGBT power module 100, and a limit groove 220 is formed at the side edge of the mounting seat 210 and used for limiting the thin film capacitor 300;

the filter assembly 400 is disposed on a first side of the chassis 200, and the filter assembly 400 is connected to the other side of the thin film capacitor 300.

It can be appreciated that the first side of the base plate 200 is provided with a mounting seat 210 and a limiting groove 220, the limiting groove 220 is disposed near one side of the mounting seat 210, wherein the mounting seat 210 is used for mounting the IGBT power module 100, and the limiting groove 220 is used for positioning the thin film capacitor 300. One side of the thin film capacitor 300 is close to the IGBT power module 100 and connected to the IGBT power module 100, and the filter assembly 400 is disposed on one side of the thin film capacitor 300 away from the IGBT power module 100 and electrically connected to the thin film capacitor 300. The shape and size of the mounting seat 210 are adapted to the shape and size of the bottom surface of the IGBT power module 100, and the shape and size of the limit groove 220 are adapted to the shape and size of the bottom surface of the thin film capacitor 300.

It should be noted that, according to practical applications, it is not excluded to provide a limiting structure such as a baffle plate and a connecting column on the first side of the bottom plate 200, so as to form the mounting seat 210 and the limiting groove 220 by enclosing. Of course, a limiting structure such as a slot, a connecting column, etc. may be disposed on the first side of the base plate 200 corresponding to the mounting position of the filter assembly 400, so as to limit the filter assembly 400 and avoid the position deviation of the filter assembly 400.

The arrangement of the thin film capacitor 300, rather than using a separately arranged capacitor device, eliminates the use of a capacitor bracket, and effectively simplifies the assembly process. One side of the film capacitor 300 is close to the mounting seat 210 and is electrically connected with the IGBT power module 100, so that wiring difficulty is reduced, wiring design is reduced, a limit groove 220 is formed on the side edge of the mounting seat 210 and used for limiting the film capacitor 300, the filter assembly 400 is arranged on the first side face of the bottom plate 200 and is connected with the other side of the film capacitor 300, the whole new energy automobile motor controller is flat, the whole structure is more compact, mechanical strength is effectively optimized, assembly flow can be simplified, and carrying is facilitated.

The IGBT power module 100 is installed through the installation seat 210, the limiting groove 220 is used for limiting the thin film capacitor 300, the filter assembly 400 is fixedly connected to the first side surface of the bottom plate, position deviation is avoided, and the assembly, the use and the transfer are convenient; the IGBT single-tube parallel discrete technology is adopted, so that the cost of a power device and the cost of a controller assembly are effectively reduced.

As an alternative example, a connection copper bar 530 is disposed between the thin film capacitor 300 and the IGBT power module 100, the connection copper bar 530 has a first connection end and a second connection end, the first connection end is locked and fixed on the IGBT power module 100 by a connection member such as a screw, and the second connection end is hung on the thin film capacitor 300.

The thin film capacitor 300 has a first side and a second side opposite to each other, and the filter assembly 400 is disposed near the second side of the thin film capacitor 300 with the side of the thin film capacitor 300 near the IGBT power module 100 as the first side. Further, the connection copper bar 530 is provided with a plurality of first connection terminals, and the plurality of first connection terminals are disposed at intervals along the side of the IGBT power module 100. Further, the second connection end is in a pendant shape, and the second connection end is adapted to the first side of the thin film capacitor 300. To achieve stable connection, and to facilitate transfer and transportation, a rib or a limiting member is disposed on the first side of the thin film capacitor 300 for hanging and connecting the second connection end of the copper bar 530, and the second connection end and the first connection ends are configured as an integral structure. Through the setting of film electric capacity 300, reduce the design degree of difficulty of connecting copper bar 530, can accomplish the installation of film electric capacity 300 through the spacing groove 220 of the first side of bottom plate 200, cancel the use of electric capacity support, reduced occupation to the space, still can effectively simplify the assembly flow, improve production efficiency.

In order to further simplify the assembly process, at least one limiting groove 220 is arranged between two sides of the thin film capacitor 300, and the thin film capacitor 300 is connected and fixed to the limiting groove 220 of the bottom plate 200 through a positioning pin, so that the thin film capacitor 300 is limited and fixed. Specifically, two ends of the thin film capacitor 300 are oppositely formed between the first side and the second side of the thin film capacitor 300, and at least one limiting groove 220 is formed at each of the two ends of the thin film capacitor 300, so that the thin film capacitor 300 is stably mounted in the limiting groove 220 of the bottom plate 200.

Here, the thin film capacitor 300 may be formed into any shape suitable for practical use, such as a square shape, according to practical needs, and the shape of the connection copper bar 530 may be set corresponding to the positions, the placement heights, etc. of the IGBT power module 100 and the thin film capacitor 300, or the bending design may be performed between both ends of the connection copper bar 530, and the configuration is not limited herein, specifically, the configuration may be set according to practical needs.

Optionally, to optimize heat dissipation performance, a thermal pad is disposed on the mounting base 210, where the thermal pad corresponds to the position of the IGBT power module 100. Of course, a heat conducting pad may be disposed on the first side of the base plate 200, and the mounting base 210 is formed on the heat conducting pad, that is, the position where the heat conducting pad is disposed is used as the mounting base 210 for mounting the IGBT power module 100, and a structure for enclosing the mounting base 210, such as a baffle, a limit post, a slot, etc. is not disposed on the first side of the base plate 200, so as to reduce the processing difficulty.

In an embodiment, the new energy automobile motor controller further includes a control board 510, and the control board 510 is disposed on the mounting base 210 and electrically connected to the IGBT power module 100.

As an alternative example, the positioning seat is open for mounting the IGBT power module 100, and the control board 510 is covered on the opening of the mounting seat 210 and is electrically connected to the IGBT power module 100; alternatively, the IGBT power module 100 is packaged in a package, the control board 510 is covered on the package and electrically connected to the IGBT power module 100, and when the IGBT power module 100 is provided with the package, the IGBT power module 100 is mounted on the first side of the base plate 200 through the package, and according to the actual situation, the package of the IGBT power module 100 is used as the mounting base 210. The mounting base 210 for mounting the IGBT power module 100 may be specifically set or replaced according to actual situations, which is not limited herein.

Alternatively, the control board 510 may cover the opening of the mounting base 210, and may also be covered on the IGBT power module 100 by other connection components.

In one embodiment, the new energy automobile motor controller further includes a shielding plate 520, the mounting base 210 is open, and the shielding plate 520 covers the mounting base 210 via the open cover and is blocked between the IGBT power module 100 and the control board 510. The shielding plate 520 seals the mounting seat 210, so that the control board 510 and the IGBT power module 100 are prevented from interfering with each other, and leakage of electromagnetic energy of the motor controller of the new energy automobile is reduced.

Alternatively, the control board 510 is fixedly connected to the shielding plate 520, and is covered on the mounting base 210 by the shielding plate 520 for connection with the IGBT power module 100.

In addition, to further optimize the safety of the product, optionally, a discharge circuit board may be provided on the shield plate or other location suitable for practical use.

In one embodiment, the second side of the base plate 200 is formed with a heat dissipation chamber 230, and the heat dissipation chamber 230 is formed with a plurality of flow channels 231. Adjacent channels 231 are optionally in communication with each other for injecting liquid into the heat dissipation chamber 230 for further optimizing heat dissipation.

Optionally, the position of the heat dissipation cavity 230 on the second side of the bottom plate 200 corresponds to the position of the IGBT power module 100 on the first side of the bottom plate 200, so as to timely dissipate heat generated by the IGBT power module 100 in the operation process, to optimize the heat dissipation effect, and avoid device loss caused by overhigh operation temperature of the new energy automobile motor controller, and influence the service performance and the service life.

In an embodiment, a plurality of pins 232 are disposed on the flow channels 231, and a plurality of heat dissipation grooves 233 are disposed between adjacent flow channels 231. By arranging the heat dissipation grooves 233, the turbulence can be enhanced, the heat dissipation surface area can be increased, the heat dissipation effect can be optimized, the plurality of heat dissipation grooves 233 are arranged at any position of the heat dissipation cavity 230 at intervals, and particularly, the plurality of heat dissipation grooves 233 can be arranged at any position of the adjacent flow channels 231 or each flow channel 231 according to actual practice.

Optionally, to further enhance the flow resistance and optimize the heat dissipation effect, a plurality of Pin pins 232 may be disposed on the flow channel 231.

Referring to fig. 5, in an embodiment, a second side of the base plate 200 is provided with a cover plate 240 for covering the heat dissipation cavity 230, and a water inlet end 241 for communicating with the heat dissipation cavity 230 is provided on the cover plate 240.

For ease of processing, optionally, a side of the heat dissipation chamber 230 facing away from the bottom plate 200 is provided with an opening, and the cover plate 240 covers the heat dissipation chamber 230 via the opening. Here, an opening may be provided at any position of the heat dissipation chamber 230 according to actual needs, and the cover plate 240 may cover the heat dissipation chamber 230 through the opening, which may be specifically provided according to actual needs, and is not limited herein.

Optionally, the cover plate 240 is a water-cooled plate, and the water-cooled plate covers the heat dissipation chamber 230. The water cooling plate is used for cooling the heat dissipation cavity 230, and the heat dissipation cavity 230 is formed by cooling the heat dissipation cavity, wherein the heat dissipation cavity is formed by cooling the heat dissipation cavity, and the heat dissipation cavity is formed by cooling the heat dissipation cavity. The water cooling plate is provided with a plurality of connecting holes at the periphery and is fixedly connected to the second side of the bottom plate 200 by a screw connection or the like to cover the heat dissipation cavity 230.

Further, a water inlet end 241 is disposed at a side of the heat dissipation cavity 230, and a water inlet interface 250 such as a water inlet nozzle is disposed corresponding to the water inlet end 241 for water inlet, so as to optimize heat dissipation performance by injecting water into the heat dissipation cavity 230.

Referring to fig. 6, in one embodiment, the filter assembly 400 includes a filter structure 410 and a support structure 420, the support structure 420 forming a positioning slot 421 for positioning the filter structure 410.

Optionally, a plurality of stoppers 4211 are disposed on the peripheral side of the supporting structure 420, and the positioning slots 421 are surrounded by the plurality of stoppers 4211.

In order to further limit the filtering structure 410 and make the overall structure more stable and reliable, the supporting structure 420 is provided with one or more connection structures such as a limiting post 4212 and a connection position corresponding to the positioning slot 421, and the filtering structure 410 is connected and fixed on the connection structures such as the limiting post 4212 and the connection position of the supporting structure 420 in a threaded connection, a fastening connection and the like manner.

Optionally, a positioning structure such as a positioning pin, a positioning hole and the like is arranged on the supporting structure 420, the filtering structure 410 is provided with a current utilization plate, the positioning structure is used for positioning the current utilization plate and the like of the filtering structure 410, the supporting structure 420 plays a role in supporting the motor controller of the new energy automobile, is used for positioning and supporting the filtering structure 410, and is integrally connected with the filtering structure 410 and fixed on the bottom plate 200.

Optionally, the filtering structure 410 is provided with two Y capacitors, and the filtering structure 410 is used as a secondary LC filtering structure, which can improve the immunity and filtering performance of the new energy automobile motor controller.

In an embodiment, the filtering structure 410 is hollow, the filtering assembly 400 further includes a first connection structure 431, a second connection structure 432, and a third connection structure 433, the first connection structure 431 is disposed through the filtering structure 410, one end of the second connection structure 432 is electrically connected to the first connection structure 431 and the thin film capacitor 300, and the other end is hung on the thin film capacitor 300; the third connection structure 433 is disposed on the support structure 420, and one end of the third connection structure 433 is connected to the first connection structure 431 and the other end is connected to an external high voltage line. A connection structure is provided to firmly mount the filter assembly 400 on the base plate 200.

As a specific example, the filtering structure 410 has a first end and a second end opposite to each other, the first end of the filtering structure 410 is provided with a first magnetic ring structure 411, the second end of the filtering structure 410 is provided with a second magnetic ring structure 412, and the first magnetic ring structure 411 and the second magnetic ring structure 412 are hollow structures. The first connection structure 431 is arranged through the filtering structure 410, extends out of the second magnetic ring structure 412 from the first magnetic ring structure 411, and one end, close to the first magnetic ring structure 411, of the first connection structure 431 is connected with the high-voltage wire harness 711 through the third connection structure 433, and two ends of the third connection structure 433 are optionally connected and fixed on the supporting structure 420; one end of the first connection structure 431 close to the second magnetization structure is connected with the second connection structure 432, and the first connection structure 431 is connected with the thin film capacitor 300 through the second connection structure 432 and optionally connected and fixed on the supporting structure 420; the other end of the second connection structure 432 is connected to the thin film capacitor 300 in a hanging manner, so as to realize stable connection, facilitate transfer and transportation, and a rib or a limiting member is disposed on the second side of the thin film capacitor 300 for connecting the second connection structure 432.

Optionally, the magnetic ring structure is further adhesively fixed to the filtering structure 410 by potting adhesive or the like. Further, two ends of the positioning groove 421 of the supporting structure 420 are respectively provided with a first groove and a second groove corresponding to the first magnetic ring structure 411 and the second magnetic ring structure 412, the first groove and the second groove are respectively provided with a convex structure 422 such as a boss for limiting the filtering structure 410 in the positioning groove 421, and the four convex structures 422 play a role of conducting glue, so that the potting glue is fully attached to the magnetic ring structure for optimizing the stability and reliability of the filtering assembly 400.

As a specific example, the first connection structure 431, the second connection structure 432, and the third connection structure 433 are all provided in a copper bar structure. The periphery side of the supporting structure 420 is provided with a plurality of blocking pieces 4211, the positioning groove 421 is surrounded by the blocking pieces 4211, and the blocking pieces 4211 arranged on the supporting structure 420 also play a limiting role on the copper bar structure, so that the installation is convenient. It should be noted that the first connection structure 431, the second connection structure 432, and the third connection structure 433 may include more than one copper bar structure. In addition, the first connection structure 431, the second connection structure 432, and the third connection structure 433 may be provided in any shape suitable for practical use according to practical needs, and may be designed to be bent corresponding to the layout space of the motor controller of the new energy automobile, specifically, may be provided according to practical needs, and the shape, the number, and the like of the first connection structure 431, the second connection structure 432, and the third connection structure 433 are not limited herein.

Optionally, the new energy automobile motor controller is provided with a high voltage interface 710, and a high voltage harness 711 is provided corresponding to the high voltage interface 710, so as to facilitate connection and save cost, and the third connection structure 433 is connected with a copper nose or other connection end of the high voltage harness 711 by a screw connection or other manner. The high voltage wire harness 711 extends at least partially out of the new energy automobile motor controller for connection with an external high voltage wire structure or wiring device.

Referring to fig. 1, 2 and 4, in an embodiment, the new energy automobile motor controller further includes an upper cover 700, the upper cover 700 is fastened on the first side of the base plate 200, and the upper cover 700 is provided with a high voltage interface 710 for connection with an external high voltage line.

The upper cover 700 is fastened to the base plate 200, so as to protect the structure arranged on the base plate 200 by the upper cover 700, and in order to realize stable connection, the upper cover 700 may be provided to be fixedly connected to the base plate 200 by screwing or the like. The sealing structure such as a gasket may be provided between the upper cover 700 and the base plate 200, or the base plate 200 may be provided as a base, and the present utility model is not limited to this.

Further, a high-voltage cover plate 720 is disposed at a position of the upper cover 700 corresponding to the high-voltage interface 710, so as to protect the connection structures such as the high-voltage wire harness 711.

Further, the upper cover 700 is provided with a character of a Chinese character 'mi', which is used for improving the mechanical strength of the upper cover 700, and enabling the whole new energy automobile motor controller to be in a flat shape, thereby being beneficial to carrying on the whole automobile while ensuring the mechanical strength.

Referring to fig. 4, in an embodiment, the new energy automobile motor controller further includes a three-phase output module 600, the three-phase output module 600 is mounted on a side surface of the base plate 200, the three-phase output module 600 is provided with a copper bar structure, one end of the copper bar structure is connected with the IGBT power module 100, and the other end of the copper bar structure is disposed through the base plate 200.

Optionally, the copper bar structure is specifically a three-phase copper bar, where the IGBT power module 100 is provided with U, V, W three phases, and the three-phase copper bar is connected to U, V, W three phases of the IGBT power module 100 one-to-one through a connection piece such as a bolt. The three-phase output module 600 is disposed on the other side of the IGBT power module 100 with respect to the thin film capacitor 300.

Optionally, the three-phase output module 600 is further provided with a first magnetic ring, a second magnetic ring and a third magnetic ring, where the first magnetic ring, the second magnetic ring and the third magnetic ring are one-to-one disposed on the three-phase copper bar, and the principle that the inductance is connected with the low-frequency resistance and the high-frequency is utilized to realize higher noise immunity and filtering performance. The Hall element is arranged among the first magnetic ring, the second magnetic ring and the third magnetic ring, and can determine the current passing through the copper bar, and verify the output power of the motor controller.

To further stabilize the overall structure, the base plate 200 is provided with a clamping groove 260 corresponding to the mounting base 210 for clamping the three-phase output module 600.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. A new energy automobile motor controller, characterized by comprising:

an IGBT power module;

the first side surface of the bottom plate is provided with an installation seat for installing the IGBT power module;

the thin film capacitor is arranged on one side of the thin film capacitor close to the mounting seat and is electrically connected with the IGBT power module, and a limit groove is formed on the side edge of the mounting seat and used for limiting the thin film capacitor; and

the filtering component is arranged on the first side face of the bottom plate and connected with the other side of the thin film capacitor.

2. The new energy automobile motor controller of claim 1, further comprising a control board, wherein the control board cover is disposed on the mounting base and electrically connected to the IGBT power module.

3. The new energy vehicle motor controller of claim 2, further comprising a shield plate, the mount is open, the shield plate covers the mount via the open and is blocked between the IGBT power module and the control board.

4. The new energy automobile motor controller of claim 1, wherein the second side of the bottom plate is formed with a heat dissipation cavity, the heat dissipation cavity being formed with a plurality of flow channels.

5. The new energy automobile motor controller of claim 4, wherein a plurality of pins are arranged on the runners, and a plurality of heat dissipation grooves are arranged between adjacent runners.

6. The new energy automobile motor controller of claim 4, wherein a cover plate for sealing the heat dissipation cavity is arranged on the second side surface of the bottom plate, and a water inlet end for communicating with the heat dissipation cavity is arranged on the cover plate.

7. The new energy vehicle motor controller of claim 1, wherein the filter assembly comprises a filter structure and a support structure, the support structure forming a detent for locating the filter structure.

8. The new energy automobile motor controller according to claim 7, wherein the filtering structure is hollow, the filtering assembly further comprises a first connecting structure, a second connecting structure and a third connecting structure, the first connecting structure penetrates through the filtering structure, one end of the second connecting structure is electrically connected with the first connecting structure and the thin film capacitor, and the other end of the second connecting structure is hung on the thin film capacitor; the third connecting structure is arranged on the supporting structure, one end of the third connecting structure is connected with the first connecting structure, and the other end of the third connecting structure is used for being connected with an external high-voltage line.

9. The new energy automobile motor controller according to claim 1, further comprising a three-phase output module, wherein the three-phase output module is installed on one side surface of the base plate, the three-phase output module is provided with a copper bar structure, one end of the copper bar structure is connected with the IGBT power module, and the other end of the copper bar structure penetrates through the base plate.

10. The new energy vehicle motor controller according to any one of claims 1-9, further comprising an upper cover fastened to the first side of the base plate, the upper cover being provided with a high voltage interface for connection with an external high voltage line.