CN115431791A

CN115431791A - Motor controller with Boost function and motor

Info

Publication number: CN115431791A
Application number: CN202211001593.4A
Authority: CN
Inventors: 刘蕾; 朱玲玉; 吴鸿信; 张伟
Original assignee: Jee Automation Equipment Shanghai Co ltd
Current assignee: Jee Automation Equipment Shanghai Co ltd
Priority date: 2022-08-19
Filing date: 2022-08-19
Publication date: 2022-12-06
Also published as: WO2024036657A1

Abstract

The embodiment of the invention provides a motor controller with a Boost function and a motor, and belongs to the technical field of motor controllers. The motor controller includes: a first cavity; the capacitor module is arranged at the bottom of the first cavity; the high-voltage filtering module is arranged at the bottom of the first cavity; the cooling module is arranged at the tops of the capacitor module and the high-voltage filtering module; the power module is arranged at the top of the cooling module; the three-phase copper bar and circuit detection assembly is arranged at the top of the cooling module; the PCB module is arranged on the tops of the power module, the three-phase copper bar and the circuit detection assembly; the high-voltage filtering module and the capacitor module are electrically connected with an external direct current bus to form a Boost loop. The motor controller and the motor can expand the functions of the motor controller under the condition that the size of the motor controller is not increased.

Description

Motor controller with Boost function and motor

Technical Field

The invention relates to the technical field of motor controllers, in particular to a motor controller with a Boost function and a motor.

Background

Along with new energy automobile is more and more popularized, people provide higher requirement to new energy automobile's charging performance, and promote system voltage and can satisfy the demand of filling soon, for the electric pile that fills of compatible 400V system, the application that can widen the product is boosted to integrated Boost function in the product. The Boost function is to utilize driving motor and machine controller, and the 400V voltage that charges the infrastructure provided steps up to the most suitable 800V voltage of new energy automobile, lets the vehicle be full of electricity fast in the short time. Therefore, the motor controller with the Boost function has higher market advantages.

In the traditional scheme of the motor controller, the charging mode of a vehicle is a direct charging mode without a Boost boosting and quick charging function, and the vehicle is mainly composed of a high-voltage bus, a shell, an IGBT (insulated gate bipolar transistor), a thin-film capacitor, a low-voltage plug-in, a PCB (printed circuit board), a filter assembly and the like.

In the internal structure arrangement scheme of the traditional motor controller, the driving plate and the control plate are generally separated, and the driving plate and the control plate can transmit electric signals through a plug-in low-voltage wire harness. The high-voltage bus is provided with a magnetic ring and a high-voltage filter capacitor to realize the EMC function; in the structural layout of the controller, a conventional thin film capacitor is mounted on the upper part of the shell through a bolt and is connected with the IGBT and an external bus. And finally, installing a drive plate module, an isolation plate and a control plate module at the upper end of the IGBT. The three-phase copper bar is generally independent, one end of the three-phase copper bar is connected with the IGBT, penetrates through a fixed seat fixed on the controller and enters the motor; the shell end can be designed and installed with a low-voltage socket for debugging signals and programming, and is connected with the PCB board through a wire harness

Disclosure of Invention

The embodiment of the invention aims to provide a motor controller with a Boost function and a motor, and the motor controller and the motor can expand the functions of the motor controller under the condition of not increasing the volume of the motor controller.

In order to achieve the above object, an embodiment of the present invention provides a motor controller with a Boost function, including:

a first cavity;

the capacitor module is arranged at the bottom of the first cavity;

the high-voltage filtering module is arranged at the bottom of the first cavity;

the cooling module is arranged at the tops of the capacitor module and the high-voltage filtering module;

the power module is arranged at the top of the cooling module;

the three-phase copper bar and circuit detection assembly is arranged at the top of the cooling module;

the PCB module is arranged on the tops of the power module, the three-phase copper bar and the circuit detection assembly;

the high-voltage filtering module and the capacitor module are electrically connected with an external direct current bus to form a Boost loop.

Optionally, the motor controller further comprises:

the second cavity is connected with the first cavity, and the direct current bus enters the first cavity through the second cavity;

and the Boost negative electrode outgoing line is arranged in the second cavity, one end of the Boost negative electrode outgoing line is connected with the high-voltage filtering module and the capacitor module, and the other end of the Boost negative electrode outgoing line extends out of the second cavity.

Optionally, the motor controller further includes positive and negative bus magnetic rings disposed on the side surface inside the second cavity, and positive and negative terminals of the dc bus pass through the positive and negative bus magnetic rings and enter the second cavity to be connected to the high-voltage filtering module and the capacitor module.

Optionally, the capacitor module comprises a thin film capacitor, the thin film capacitor comprising:

an input positive terminal;

an input negative terminal;

the filtering magnetic ring is sleeved on the peripheries of the input positive terminal and the input negative terminal;

and the Boost negative input terminal is arranged outside the filtering magnetic ring.

Optionally, the top of the thin film capacitor is coated with a heat conductive material, and the top is provided with a plurality of bolt holes.

Optionally, the power module comprises a silicon carbide module, a back surface of the silicon carbide module being provided with a plurality of pin-fin fins;

the top of the water cooling plate is provided with at least one water tank, and pin-fin fins of the silicon carbide module are arranged in the water tank.

Optionally, the rim of the opening of the sink is provided with a sealing ring.

Optionally, the water-cooling plate further comprises an outer flange extending area, and the outer flange extending area is of a metal structure so as to shield magnetic fields on two sides of the water-cooling plate.

Optionally, the motor controller further includes a low-voltage plug-in, the low-voltage plug-in is disposed on a side surface of the first cavity and connected to the PCB module.

On the other hand, the invention also provides a motor with a Boost function, which comprises the motor controller and the motor body.

According to the motor controller with the Boost function and the motor, the capacitor module, the high-voltage filter module, the cooling module, the power module and the PCB module are stacked, so that the integrated motor controller can expand the Boost function of the motor controller without increasing the volume of the motor controller.

Additional features and advantages of embodiments of the present invention will be described in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention and not to limit the embodiments of the invention. In the drawings:

fig. 1 is an overall schematic diagram of a motor controller with Boost function according to an embodiment of the present invention;

fig. 2 is an exploded view of a motor controller with Boost functionality according to an embodiment of the invention;

FIG. 3 is an exemplary diagram of a Boost circuit according to one embodiment of the invention;

FIG. 4 is a schematic diagram of a thin film capacitor according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a high voltage filter module according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a water-cooled panel according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a PCB module according to an embodiment of the invention;

fig. 8 is an overall schematic diagram of a motor controller with Boost function according to an embodiment of the present invention.

Description of the reference numerals

1. First cavity 2 and capacitor module

3. High-voltage filter module 4 and cooling module

5. Power module 6, three-phase copper bar and circuit detection assembly

7. PCB module 8 and second cavity

9. Boost negative pole is qualified for next round of competitions 10, positive negative pole generating line magnetic ring

11. Low-voltage plug-in 1-1 rotary transformer wire harness

1-2, sealing tube 2-1, input positive terminal

2-2, input negative terminal 2-3, filtering magnetic ring

2-4 parts of Boost negative input terminal 3-1 parts of direct current positive copper bar

3-2 parts of direct current negative electrode copper bar 3-3 parts of Boost negative electrode copper bar

3-4, X capacitance 3-5, Y capacitance

6-1, 6-2 water tank and sealing ring

6-3, an outside flanging extension area 7-1 and a control plate

7-2, drive board

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.

In the embodiments of the present invention, unless otherwise specified, the use of directional terms such as "upper, lower, top, and bottom" is generally used with respect to the orientation shown in the drawings or the positional relationship of the components with respect to each other in the vertical, or gravitational direction.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between the respective embodiments may be combined with each other, but it is necessary to be based on the realization of the technical solutions by those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Fig. 1 is a general schematic diagram of a motor controller with a Boost function according to an embodiment of the present invention. Fig. 2 is an exploded view of a motor controller with Boost function according to an embodiment of the present invention. In fig. 1 and 2, the motor controller may include a first cavity 1, a capacitor module 2, a high-voltage filter module 3, a cooling module 4, a power module 5, a three-phase copper bar and circuit detection assembly 6, and a PCB module 7. The capacitor module 2, the high-voltage filter module 3, the cooling module 4, the power module 5, the three-phase copper bar and circuit detection assembly 6 and the PCB module 7 can be arranged in the first cavity 1. The capacitor module 2 and the high voltage filter module 3 may be disposed at the bottom of the first cavity 1 (preferably, disposed at the bottom of the first cavity 1 in parallel). The cooling module 4 may be disposed on top of the capacitor module 2 and the high voltage filter module 3 so as to conduct heat to the capacitor module 2 and the high voltage filter module 3. The power module 5 may be arranged on top of the cooling module 4 so that the cooling module 4 simultaneously conducts heat to the power module 5. The three-phase copper bar and circuit detecting assembly 6 may be disposed on the top of the cooling module 4 so as to be electrically connected to the power module 5 while dissipating heat through the cooling module 4. The PCB module 7 may be disposed on top of the power module 5 and the three-phase copper bar and circuit detecting assembly 6 so as to be electrically connected to the power module 5 and the three-phase copper bar and circuit detecting assembly 6 at the same time. The capacitor module 2 and the high-voltage filter module 3 may be electrically connected to an external dc bus to form a Boost circuit. The specific connection between the capacitor module 2 and the high voltage filter module 3 may be a connection of a Boost circuit known to those skilled in the art, such as the circuit shown in fig. 3.

In addition, in the embodiment, a rotary transformer harness 1-1 may be further provided at a side of the first cavity 1 to enter the motor rear end cover from the side of the first cavity 1. As shown in fig. 7, the periphery of the swirling harness 1-1 may be further provided with a sealing tube 1-2. The sealing tube 1-2 is also capable of sealing the connection between the motor controller and the motor in the case of sealing the wire harness.

In one embodiment of the present invention, in order to facilitate uniform wiring of the motor controller, thereby saving the volume of the wiring arrangement, the motor controller may further comprise a second cavity 8, as shown in fig. 1 and 2. The second cavity 8 can be connected with the first cavity 1, and a direct current bus for external power supply can enter the first cavity 1 through the second cavity 8. And the Boost negative outgoing line 9 integrated with the Boost function may be arranged in the second cavity 8. One end of the Boost negative outlet wire 9 can be connected with the high-voltage filtering module 3 and the capacitor module 2, and the other end can extend out of the second cavity 8. Further, under the condition of uniform wiring, a positive and negative bus bar magnetic ring 10 may be disposed in the second cavity 8. Specifically, the positive and negative bus magnetic rings 10 may be disposed on the side of the second cavity 8, and positive and negative connection wires of the dc bus may pass through the positive and negative bus magnetic rings 10 and enter the second cavity 8, so as to be connected to the high voltage filter module 3 and the capacitor module 2.

In this embodiment, although the capacitive module 2 may take many forms known to those skilled in the art. In a preferred example of the invention, the capacitive module 2 may be, for example, a thin film capacitor. Specifically, the thin film capacitor may be a structure as shown in fig. 4. In fig. 4, the thin film capacitor may include an input positive terminal 2-1, an input negative terminal 2-2, a filter magnetic loop 2-3, and a Boost negative input terminal 2-4. The positive terminal 2-1 and the input negative terminal 2-2 can be arranged in parallel, so that the filtering magnetic ring 2-3 can be arranged conveniently. The filtering magnetic ring 2-3 can be sleeved on the periphery of the input positive terminal 2-1 and the input negative terminal 2-2. The Boost negative input terminal 2-3 can be arranged outside the filtering magnetic ring 2-3. Further, in order to further improve the efficiency of heat conduction between the thin film capacitor and the cooling module 4, the top of the thin film capacitor may be coated with a heat conductive material. The specific type of thermally conductive material may be numerous as known to those skilled in the art. In a preferred example of the present invention, the heat conductive material may preferably be heat conductive silicone grease. In addition, in order to improve the structural stability of the whole motor controller, the film capacitor may be fixed to the bottom of the first cavity 1 by bolts.

In this embodiment, the specific form of the high voltage filter module 3 is, though, many others known to those skilled in the art. However, in view of the present invention to save the overall design volume of the motor controller, in one example of the present invention, the high voltage filter module 3 may be a structure as shown in fig. 5. In fig. 5, the high voltage filter module 3 may be an injection molded integral structure. Specifically, the high-voltage filter module 3 may include an integrated dc positive copper bar 3-1, a dc negative copper bar 3-2, a Boost negative copper bar 3-3, an X capacitor 3-4, and a Y capacitor 3-5. Through this integrative structure of moulding plastics, can put together numerous filter components, can guarantee in limited space, the maximize improves machine controller's EMC ability. Similar to the thin film capacitor, in order to improve the structural stability of the whole motor controller, the high voltage filter module 3 may also be fixed to the bottom of the first cavity 1 by bolts.

In this embodiment, the specific form of the power module 5, although it may be various as known to those skilled in the art. However, considering that the present invention is intended to save the overall design volume of the motor controller, in one example of the present invention, the power module 5 may be a silicon carbide module (SiC module). Compared with the traditional IGBT, the silicon carbide module has smaller volume, and the design volume of the motor controller can be further reduced. In addition, in order to further improve the heat dissipation efficiency of the silicon carbide module, the back surface of the silicon carbide module may be provided with a plurality of pin-fin fins.

In this embodiment, the specific form of the cooling module 4 is described, although it may be various forms known to those skilled in the art. Such as a combination of an air-cooled channel formed by a plurality of air ducts and a compressor, etc. However, in consideration of heat dissipation efficiency and design volume, in a preferred example of the present invention, the cooling module 4 may include a water-cooled plate. Specifically, the structure of the water-cooled plate may be as shown in fig. 6. In this fig. 6, the top of the water cooled panel may be provided with at least one water trough 6-1 and an outside cuff extension area 6-3. The water tank 6-1 may be used for pin-fin fins of the silicon carbide module to be inserted, thereby improving heat dissipation efficiency. The outer flange extending area 6-3 is of a metal structure and is used for completing magnetic field shielding on two sides of the water cooling plate. Further, in order to ensure water tightness between the silicon carbide module and the water-cooled panel, the edge of the water tank 6-1 may be provided with a sealing ring 6-2. The number of the water tanks 6-1 may be a plurality of values known to those skilled in the art, such as 2, 3, 4, etc. In a preferred example of the present invention, the number of the water tanks 6-1 may be 3 in consideration of the circuit requirements of the motor controller itself and the heat dissipation capability of the water cooling plate itself. Accordingly, the number of power modules 5 may also be 3.

In this embodiment, in the three-phase copper bar and circuit detecting assembly 6, although the direction of the outlet end of the three-phase copper bar may be various as known by those skilled in the art. However, considering the direction of the negative-electrode output line 9 of the Boost, in order to further reduce the design volume of the motor controller and the corresponding peripheral circuit, the direction of the output end of the three-phase copper bar may be the same as the output direction of the negative-electrode output line 9 of the Boost, for example, the direction a in fig. 2. Under the condition that the direction of the wire outlet end is a, as shown in fig. 7, the three-phase copper bar directly extends into the motor and can be connected in the shortest path, so that the overall design volume is reduced to the maximum extent. In addition, the periphery of the three-phase copper bar can be also provided with corresponding shielding magnetic rings.

The PCB module 7, which serves as a control part and a driving part of the motor controller, may be disposed at the top of the first cavity 1, which is far from the cooling module 4, since it does not generate much heat. The specific construction of the PCB module 7, although it may be of many forms known to those skilled in the art. In this embodiment, the PCB module 7 may be a structure as shown in fig. 7. In this fig. 7, the PCB module 7 may include a control board 7-1 and a driving board 7-2, and the control board 7-1 and the driving board 7-2 may be connected by on-board wiring. In addition, to facilitate the operation of the PCB module 7, the motor controller may further include a low voltage package 11. The low voltage plug-in 11 may be disposed at a side of the first cavity 1, connected to the PCB module 7, and configured to expand the overall function of the PCB module 7.

On the other hand, the invention also provides a motor with a Boost function, and the motor can comprise a motor controller and a motor body. The motor body may be any type of motor known to those skilled in the art, such as a servo motor, a stepping motor, and the like. The motor controller may be configured as described with reference to any of fig. 1 to 7. Specifically, the method comprises the following steps:

fig. 1 is a general schematic diagram of a motor controller with a Boost function according to an embodiment of the present invention. Fig. 2 is an exploded view of a motor controller with Boost function according to an embodiment of the present invention. In fig. 1 and 2, the motor controller may include a first cavity 1, a capacitor module 2, a high-voltage filter module 3, a cooling module 4, a power module 5, a three-phase copper bar and circuit detection assembly 6, and a PCB module 7. The capacitor module 2, the high-voltage filter module 3, the cooling module 4, the power module 5, the three-phase copper bar and circuit detection assembly 6 and the PCB module 7 can be arranged in the first cavity 1. The capacitor module 2 and the high-voltage filter module 3 may be disposed at the bottom of the first cavity 1 (preferably, disposed at the bottom of the first cavity 1 in parallel). The cooling module 4 may be disposed on top of the capacitor module 2 and the high voltage filter module 3 so as to conduct heat to the capacitor module 2 and the high voltage filter module 3. The power module 5 may be arranged on top of the cooling module 4 so that the cooling module 4 simultaneously conducts heat to the power module 5. The three-phase copper bar and circuit detecting assembly 6 may be disposed on the top of the cooling module 4 so as to be electrically connected to the power module 5 while dissipating heat through the cooling module 4. The PCB module 7 may be disposed on top of the power module 5 and the three-phase copper bar and circuit detecting assembly 6 so as to be electrically connected to the power module 5 and the three-phase copper bar and circuit detecting assembly 6 at the same time. The capacitor module 2 and the high-voltage filter module 3 may be electrically connected to an external dc bus to form a Boost loop. As for a specific connection manner between the capacitor module 2 and the high voltage filter module 3, it may be a connection manner of a Boost circuit known to those skilled in the art, for example, a circuit shown in fig. 3.

In addition, in the embodiment, a rotary transformer harness 1-1 may be further provided at a side of the first cavity 1 to enter the motor rear end cover from the side of the first cavity 1. As shown in fig. 7, the periphery of the swirling harness 1-1 may be further provided with a sealing tube 1-2. The sealing tube 1-2 can also seal the connection between the motor controller and the motor under the condition of sealing the wire harness.

In this embodiment, although the capacitive module 2 may take many forms known to those skilled in the art. In a preferred example of the invention, however, the capacitive module 2 may be, for example, a thin-film capacitor. Specifically, the thin film capacitor may be a structure as shown in fig. 4. In fig. 4, the thin film capacitor may include an input positive terminal 2-1, an input negative terminal 2-2, a filter magnetic loop 2-3, and a Boost negative input terminal 2-4. The positive terminal 2-1 and the input negative terminal 2-2 can be arranged in parallel, so that the filtering magnetic ring 2-3 can be arranged conveniently. The filtering magnetic ring 2-3 can be sleeved on the periphery of the input positive terminal 2-1 and the input negative terminal 2-2. The Boost negative input terminal 2-3 can be arranged outside the filtering magnetic ring 2-3. Further, in order to further improve the efficiency of heat conduction between the thin film capacitor and the cooling module 4, the top of the thin film capacitor may be coated with a heat conductive material. The specific type of thermally conductive material may be numerous as known to those skilled in the art. In a preferred example of the present invention, the heat conductive material may preferably be heat conductive silicone grease. In addition, in order to improve the structural stability of the whole motor controller, the film capacitor may be fixed to the bottom of the first cavity 1 by bolts.

In this embodiment, the specific form of the high voltage filter module 3 is, though, many others known to those skilled in the art. However, considering that the present invention is to save the overall design volume of the motor controller, in one example of the present invention, the high voltage filter module 3 may be a structure as shown in fig. 5. In fig. 5, the high voltage filter module 3 may be an injection molded integral structure. Specifically, the high-voltage filter module 3 may include an integrated dc positive copper bar 3-1, a dc negative copper bar 3-2, a Boost negative copper bar 3-3, an X capacitor 3-4, and a Y capacitor 3-5. Through this integrative structure of moulding plastics, can put together numerous filter components, can guarantee in limited space, the maximize improves machine controller's EMC ability. Similar to the thin film capacitor, in order to improve the structural stability of the whole motor controller, the high voltage filter module 3 may also be fixed to the bottom of the first cavity 1 by bolts.

In this embodiment, the specific form of the power module 5, although it may be various as known to those skilled in the art. However, considering that the present invention is to save the overall design volume of the motor controller, in one example of the present invention, the power module 5 may be a silicon carbide module (SiC module). Compared with the traditional IGBT, the silicon carbide module has smaller volume, and the design volume of the motor controller can be further reduced. In addition, in order to further improve the heat dissipation efficiency of the silicon carbide module, the back surface of the silicon carbide module may be provided with a plurality of pin-fin fins.

In this embodiment, the specific form of the cooling module 4 is described, although it may be various forms known to those skilled in the art. Such as a combination of an air-cooled channel formed by a plurality of air ducts and a compressor, etc. However, in consideration of heat dissipation efficiency and design volume, in a preferred example of the present invention, the cooling module 4 may include a water-cooled plate. Specifically, the structure of the water-cooled plate may be as shown in fig. 6. In this fig. 6, the top of the water cooled panels may be provided with at least one trough 6-1 and a lateral flange extension 6-3. The water tank 6-1 may be used for pin-fin insertion of the silicon carbide module, thereby improving heat dissipation efficiency. The outer flange extending area 6-3 is of a metal structure and is used for completing magnetic field shielding on two sides of the water cooling plate. Further, in order to ensure water tightness between the silicon carbide module and the water-cooled plate, the edge of the water tank 6-1 may be provided with a sealing ring 6-2. The number of the water tanks 6-1 may be a plurality of values known to those skilled in the art, such as 2, 3, 4, etc. In a preferred example of the present invention, the number of the water tanks 6-1 may be 3 in consideration of the circuit requirements of the motor controller itself and the heat dissipation capability of the water cooling plate itself. Accordingly, the number of power modules 5 may also be 3.

In this embodiment, in the three-phase copper bar and circuit detecting assembly 6, although the direction of the outlet end of the three-phase copper bar may be various as known to those skilled in the art. However, considering the direction of the Boost negative outlet 9, in order to further reduce the design volume of the motor controller and the corresponding peripheral circuit, the outlet end direction of the three-phase copper bar may be the same as the outlet direction of the Boost negative outlet 9, for example, the direction a in fig. 2. Under the condition that the direction of the wire outlet end is a, as shown in fig. 7, the three-phase copper bar directly extends into the motor, and the connection can be completed by the shortest path, so that the overall design volume is reduced to the maximum extent. In addition, the periphery of the three-phase copper bar can be also provided with corresponding shielding magnetic rings.

The PCB module 7, which serves as a control part and a driving part of the motor controller, may be disposed at the top of the first cavity 1, which is far from the cooling module 4, since it does not generate much heat. The specific construction of the PCB module 7, although it may be of many forms known to those skilled in the art. In this embodiment, the PCB module 7 may be the steps as shown in fig. 7. In this fig. 7, the PCB module 7 may include a control board 7-1 and a driving board 7-2, and the control board 7-1 and the driving board 7-2 may be connected by on-board wiring. In addition, to facilitate the operation of the PCB module 7, the motor controller may further include a low voltage package 11. The low voltage plug-in 11 may be disposed at a side of the first cavity 1, connected to the PCB module 7, and configured to expand the overall function of the PCB module 7.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A motor controller with a Boost function, the motor controller comprising:

a first cavity;

the capacitor module is arranged at the bottom of the first cavity;

the power module is arranged at the top of the cooling module;

2. The motor controller of claim 1, further comprising:

and the Boost negative electrode outlet wire is arranged in the second cavity, one end of the Boost negative electrode outlet wire is connected with the high-voltage filtering module and the capacitor module, and the other end of the Boost negative electrode outlet wire extends out of the second cavity.

3. The motor controller of claim 2, further comprising positive and negative bus magnetic rings disposed on the side of the interior of the second cavity, wherein positive and negative connections of the dc bus pass through the positive and negative bus magnetic rings into the second cavity to connect to the high voltage filter module and the capacitor module.

4. The motor controller of claim 1, wherein the capacitance module comprises a thin film capacitor comprising:

an input positive terminal;

an input negative terminal;

5. The motor controller of claim 4, wherein the top of the thin film capacitor is coated with a thermally conductive material and is provided with a plurality of bolt holes.

6. The motor controller of claim 1, wherein the power module comprises a silicon carbide module having a back surface provided with a plurality of pin-fin fins;

7. The motor controller of claim 6, wherein an edge of the opening of the water tank is provided with a sealing ring.

8. The motor controller of claim 6, wherein the water-cooled plate further comprises an outside flange extension area, wherein the outside flange extension area is of a metal structure to shield magnetic fields on two sides of the water-cooled plate.

9. The motor controller of claim 1 further comprising a low voltage plug-in disposed on a side of the first cavity and connected to the PCB module.

10. A motor with Boost function, characterized in that the motor comprises a motor controller according to any one of claims 1 to 9 and a motor body.