CN114126336A

CN114126336A - Motor controller shell, motor controller and vehicle

Info

Publication number: CN114126336A
Application number: CN202110732572.9A
Authority: CN
Inventors: 李森; 杨攀; 张骏飞; 罗贵恒
Original assignee: Baoding R&D Branch of Honeycomb Transmission System Jiangsu Co Ltd
Current assignee: Baoding R&D Branch of Honeycomb Transmission System Jiangsu Co Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2022-03-01

Abstract

The embodiment of the application relates to a motor controller shell, a motor controller and a vehicle, and belongs to the technical field of controllers. The device placement machine comprises a plurality of device placement grooves, wherein the device placement grooves are at least used for placing a first device and a second device; wherein a cooling member is provided between the first device and the second device; and a cooling member for cooling the first device and the second device simultaneously when a cooling liquid flows through the cooling member. Use a motor controller casing, motor controller and vehicle that this application provided, can promote the cooling effect of cooling part to the second device.

Description

Motor controller shell, motor controller and vehicle

Technical Field

The embodiment of the application relates to the technical field of controllers, in particular to a motor controller shell, a motor controller and a vehicle.

Background

With the development of the new energy automobile market, the motor and the electric control which are key parts of the pure electric automobile are highly valued by the industry, and higher requirements are provided for the cooling performance of the motor.

The motor is through motor controller to come the relevant control of opening and stopping, is provided with cooling part, first device and second device in the motor controller, and cooling part can cool off first device and second device in proper order, however, cooling part is behind the first device of cooling, and the temperature in the cooling part can rise, when recycling the cooling part that the temperature rose and cooling the second device, then can't play better cooling effect.

Disclosure of Invention

The embodiment of the application provides a motor controller, motor controller and vehicle, aims at improving the cooling effect of cooling part to the second device.

A first aspect of an embodiment of the present application provides a motor controller housing, including a plurality of device placement slots, where the plurality of device placement slots are at least used for placing a first device and a second device; wherein a cooling member is provided between the first device and the second device; and a cooling member for cooling the first device and the second device simultaneously when a cooling liquid flows through the cooling member.

Optionally, the first device is a DC-LINK capacitor, and the second device is an IGBT power output module.

Optionally, the cooling component is detachably connected to the motor controller housing.

Optionally, the plurality of device placement slots are at least further used for placing a first high-voltage component, a first low-voltage component and a second high-voltage component, wherein the first high-voltage component and the first low-voltage component are located in the same device placement slot;

the device placement grooves for placing the first high-voltage component, the second low-voltage component and the second high-voltage component are respectively different.

Optionally, the water outlet of the cooling component is communicated with the water inlet of the motor through a double-spherical water nozzle.

In a second aspect of embodiments of the present application, a motor controller includes a motor controller housing provided in the first aspect of embodiments of the present application.

Optionally, a drive plate and an IGBT power output module are disposed in the motor controller housing, and the IGBT power output module includes: the switching module and the IGBT module are arranged in sequence; a current Hall sensor is arranged on the driving plate;

the switching module is inserted into the current Hall sensor;

the driving plate is connected above the IGBT module.

Optionally, a temperature sensor is arranged on the driving plate, and a temperature transmitter facing the temperature sensor is arranged on the cooling part;

the temperature transmitter is used for transmitting the temperature of the cooling component to the temperature sensor.

Optionally, a second high voltage component is disposed within the machine controller housing, the second high voltage component including a DC filter module, the DC filter module including: the copper bar, the base, the magnetic ring and the safety capacitor are arranged on the base;

the magnetic ring and the safety capacitor are fixed on the base,

the copper bar is used for electrically connecting the safety capacitors;

the magnetic ring and the safety capacitor are used for carrying out multistage filtering on direct current signals of a vehicle battery so as to output filtered direct current signals.

A third aspect of the embodiments of the present application provides a vehicle provided with the motor controller according to the second aspect of the embodiments, and the motor controller provided with the motor controller case according to the first aspect of the embodiments.

Adopt the motor controller casing that this application provided, the mode of arranging first device and second device in cooling part same one side in traditional scheme has been cancelled, and set up cooling part in first device standing groove, and make first device and the second device that lie in first device standing groove set up in cooling part's both sides, when the coolant liquid passes through from cooling part, the first device that lies in cooling part both sides can be cooled off simultaneously with the second device, thereby make the two cooling effect the same, and can not sacrifice the cooling effect of second device, ensure the cooling effect of first device, the cooling effect of cooling part to the second device has been promoted.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is an exploded view of a motor controller according to an embodiment of the present application;

fig. 2 is a cross-sectional view of an assembled motor controller according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a resolver harness according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a DC filtering module according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of an IGBT power output module according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a temperature sensor according to an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a temperature transmitter according to an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of a magnetic ring groove according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of a double-ball-shaped water nozzle according to an embodiment of the present application.

Description of reference numerals: 1. a motor controller housing; 11. a first shield plate; 12. a second shielding plate; 13. a third shield plate; 131. a shield; 132. an insulating member; 14. an upper cover; 15. a lower housing; 151. A low voltage connector; 2. a first device placement groove; 21. a drive plate; 211. a current Hall sensor; 212. a temperature sensor; 22. an IGBT power output module; 221. a switching module; 2211. a copper pillar; 2212. a three-phase output copper bar; 2213. a magnetic ring groove; 222. an IGBT module; 23. a cooling member; 231. a temperature transmitter; 24. a DC-LINK capacitor; 3. a second device placement groove; 31. a DC filtering module; 311. copper bars; 312. an X safety capacitor; 313. a Y safety capacitor; 314. a nanocrystalline magnetic ring; 315. a ferrite bead; 316. a base; 4. a third device placement groove; 5. rotating the wiring harness; 51. A sealing block; 6. a double-spherical water nozzle; 61. an aluminum tube; 62. and (5) sealing the sleeve.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Example one

Referring to fig. 1, an exploded view of a motor controller is shown, and referring to fig. 2, an assembled cross-sectional view of a motor controller is shown. A motor controller housing includes a plurality of device placement slots for placing at least a first device and a second device; wherein a cooling member 23 is provided between the first device and the second device; when a cooling liquid is flowed through the cooling member 23, the cooling member is used to cool the first device and the second device at the same time.

In the embodiment of the present application, referring to fig. 1, an upper cover 14 and a lower cover 15 are disposed on a motor controller housing 1, the upper cover 14 and the lower cover 15 are both end portions of the motor controller housing 1, and a high-voltage connector (not shown) and a low-voltage connector 151 are disposed on the lower cover 15.

As shown in fig. 1 and 2, the motor controller housing 1 may be provided with a first shielding plate 11, a second shielding plate 12, and a third shielding plate 13. The first shielding plate 11 and the second shielding plate 12 divide the internal space of the motor controller housing 1 into different device placement slots, and a plurality of device placement slots may be used for placing a first high-voltage component, a first low-voltage component, and a second high-voltage component, which are located in the same device placement slot; the device placing grooves for placing the first high-voltage component, the second low-voltage component and the second high-voltage component are different, or the device placing grooves for placing the first low-voltage component, the second low-voltage component and the second high-voltage component are different.

Specifically, referring to fig. 2, the first and

second shield plates

11 and 12 divide the inner space of the motor controller case 1 into a first device placing slot 2, a second device placing slot 3, and a third device placing slot 4.

The first device placing groove 2 and the second device placing groove 3 are both arranged below the third device placing groove 4, and the inner space of the first device placing groove 2 is larger than the space of the second device placing groove 3 and the third device placing groove 4.

The first device placement slot 2 is used for accommodating a first high-voltage component and a first low-voltage component, where the first high-voltage component may be a first device and a second device, for example, the first device is a DC-LINK capacitor 24, and the second device is an IGBT power output module 22; the first low-voltage component may be a drive plate 21. The second device placement slot 3 is used to accommodate a second high voltage component, for example the second high voltage component is a DC filter module 31, and the DC filter module 31 may be a DC filter. The third device placement slot 4 is used to accommodate a second low-voltage component, for example, the second low-voltage component is a control board.

Referring to fig. 1 and 2, the first shielding plate 11 is disposed near the upper cover 14, and both ends of the first shielding plate 11 are connected to the inner wall of the motor controller case 1. The second shielding plate 12 is disposed on one side of the first shielding plate 11 away from the upper cover 14, one end of the second shielding plate 12 is perpendicular to the first shielding plate 11, and the other end faces of the second shielding plate 12 are connected to the inner wall of the motor controller housing 1. The third shielding plate 13 is disposed in the first device placing groove 2 and located between two devices in the motor controller housing 1, and is used for shielding electromagnetic interference between the two devices, for example, the third shielding plate 13 is disposed between the driving board 21 and the IGBT power output module 22 and is used for preventing the IGBT power output module 22 from interfering with the driving board 21.

In the embodiment of the present application, the first device and the second device are both located on the same side of the cooling component 23, so the cooling process in the cooling component 23 can only be to cool the first device first and then cool the second device, and the temperature of the cooling liquid in the cooling component 23 will rise after the cooling component 23 cools the first device, and if the second device is cooled, the cooling effect is poor.

Therefore, the present application cancels the manner that the first device and the second device are disposed on the same side of the cooling component 23 in the conventional scheme, and the cooling component 23 is disposed in the first device placing groove 2, and the first device and the second device located in the first device placing groove 2 are disposed on two sides of the cooling component 23, when the cooling liquid passes through the cooling component 23, the first device and the second device located on two sides of the cooling component 23 can be simultaneously cooled, so that the cooling effect of the first device and the second device is the same, and the cooling effect of the second device is not sacrificed, thereby ensuring the cooling effect of the first device.

In the embodiment of the present application, since the conventional cooling component 23 is disposed on the lower housing 15 of the motor controller housing 1 and is integrally formed with the lower housing 15 of the motor controller housing 1, when the lower housing 15 is damaged, the conventional cooling component 23 is discarded together with the cooling component 23, and the discarded cooling component 23 undoubtedly increases the production cost and the manufacturing cost of the motor controller housing 1.

Therefore, the cooling part 23 and the motor controller housing 1 in the application are connected in a detachable connection mode, for example, the cooling part 23 and the motor controller housing 1 are connected in a bolt connection or clamping connection mode, when the lower housing 15 of the motor controller housing 1 is damaged, the lower housing 15 of the motor controller housing 1 can be directly peeled off from the cooling part 23, so that the lower housing 15 and the cooling part 23 are separated, the cooling part 23 and the lower housing 15 cannot be directly discarded together, and the production cost and the manufacturing cost of the motor controller housing 1 are saved.

Example two

Based on the same inventive concept, another embodiment of the present application provides a motor controller, which includes the motor controller housing provided in the first embodiment.

The first shielding plate 11 and the second shielding plate 12 divide the motor controller housing 1 into the first device placing groove 2, the second device placing groove 3, and the third device placing groove 4, and therefore, the motor controller will be explained in the following different embodiments in the embodiments of the present application.

In the third device placing groove 4, a second low-voltage part is provided, and the second low-voltage part may include a control board (not shown in the drawing).

The control board is the first core control branch of the whole motor controller and is mainly used for controlling the IGBT power output module 22 so as to realize the conversion between direct current and alternating current and provide alternating current for the motor. The control board is disposed between the upper cover 14 and the first shield plate 11. The input terminal of the control board is electrically connected to an external device through a low voltage connector 151.

In the structure of the control board, the control board is the second low-voltage component, and is easily subjected to electromagnetic interference of the first high-voltage component and the second high-voltage component, so that the control board is damaged or abnormal.

Therefore, as shown in fig. 2, the control board is isolated in the third device placement slot 4 as a second low-voltage component alone without receiving much electromagnetic interference from the high-voltage component.

In the structure of the control panel, as shown in fig. 3, a resolver harness 5 is electrically connected to the control panel, one end of the resolver harness 5, which is far away from the control panel, extends out of the motor controller housing 1 to be electrically connected with a motor on a vehicle, however, a gap exists between the position where the resolver harness 5 extends out of the motor controller housing 1 and the motor controller housing 1, which easily causes moisture and dust in the air to enter the motor controller housing 1, so as to cause short circuit of each device in the motor controller housing 1 and reduction of the service life, and cannot meet the IP class requirement.

In order to improve the sealing performance between the motor controller housing 1 and the rotary transformer harness 5, a sealing block 51 is arranged on the rotary transformer harness 5, the sealing block 51 may be a rubber block, the sealing block 51 surrounds the rotary transformer harness 5, and the sealing block 51 may be connected to the lower housing 15 by means of bolting, bonding or clamping, so that the rotary transformer harness 5 and the lower housing 15 can be in a sealing state, and further the rotary transformer harness 5 and the motor controller housing 1 are in a sealing state. On one hand, the situation that moisture in the outside air enters the motor controller shell 1 to cause short circuit of the device can be avoided; on the other hand, dust in the outside air can be prevented from entering the motor controller housing 1, so that the service life of the device is shortened.

A second high voltage part, which may include a DC filter module 31, is provided in the second device placing groove 3.

The DC filtering module 31 is a filtering part of the entire motor controller, and is used for filtering the direct current output by the control board to filter noise in the direct current. Referring to fig. 2, the DC filter module 31 is disposed below the first shielding plate 11, and the DC filter module 31 is disposed between the motor controller housing 1 and the second shielding plate 12. An output terminal of the DC filtering module 31 is electrically connected to an input terminal of the DC-LINK capacitor 24, and is configured to input the filtered DC power to the DC-LINK capacitor 24.

In the structure of the DC filter module 31, since the components in the DC filter module 31 are connected by wires, most of the space in the motor controller case 1 is occupied.

Therefore, in order to integrate the respective devices within the DC filter module 31, the space occupied by the DC filter module 31 in the motor controller case 1 is reduced. Referring to fig. 4, the DC filter module 31 according to the embodiment of the present application includes: a copper bar 311, a base 316, a magnetic ring and a safety capacitor; the copper bar 311 is arranged in the middle of the base 316 and is used for electrically connecting the safety capacitors; the base 316 includes a plurality of grooves for mounting a magnetic ring and a plurality of safety capacitors, both the safety capacitors and the magnetic ring are disposed in the grooves on both sides of the copper bar 311. The magnetic ring and the safety capacitor are used for carrying out multistage filtering on direct current signals of a vehicle battery so as to output filtered direct current signals.

The left side of the copper bar 311 is a current input end of the copper bar 311, the right side of the copper bar 311 is a current output end of the copper bar 311, and the current output end of the copper bar 311 is electrically connected with an input end of the DC-LINK capacitor 24, so that the DC filtering module 31 is electrically connected with the DC-LINK capacitor 24.

The copper bar 311 can be manufactured through an injection molding process, and the copper bar 311 is a conductor and can realize the electric connection among the safety capacitors. The safety capacitor is fixed in the groove of the base 316, the pin of the safety capacitor can extend to the position of the copper bar 311 and is welded on the copper bar 311 in a resistance welding mode, and the two ends of the magnetic ring can be fixed in the groove of the base 316 in a gluing mode so as to realize the electric connection among the plurality of safety capacitors by utilizing the copper bar 311.

Through the setting of base 316, can integrate devices such as magnetic ring and ann rule electric capacity for these devices can be connected on same base 316. On the first hand, the components are not required to be electrically connected through wires, so that the occupation of the space of the controller shell is reduced, and on the basis of saving the internal space of the controller shell, the position of the cooling module can be changed from the position integrally formed with the lower shell 15 to the position between the first component and the second component without enlarging the volume of the motor controller shell 1; in the second aspect, when the devices are connected, the devices are only required to be inserted into the grooves in the base 316, so that the connection process is simplified, and the assembly efficiency of the product is improved; and in the third aspect, the wire harness design is reduced, and the labor cost and the production cost are saved.

In the structure of the DC filter module 31, since the copper bars 311 are used as conductors to electrically connect the safety capacitors, the copper bars 311 and the IGBT power output module 22 generate large magnetic interference, and the magnetic interference has a large influence on the low-voltage components such as the control board and the drive board 21.

Therefore, in order to avoid large magnetic interference on low-voltage components, the magnetic ring comprises a nanocrystalline magnetic ring 314 and a ferrite magnetic ring 315, and the safety capacitors comprise an X safety capacitor 312 and two groups of Y safety capacitors 313.

Wherein, the nanocrystalline magnetic ring 314 and the ferrite magnetic ring 315 are inserted into the groove of the base 316 close to the copper bar 311, and the nanocrystalline magnetic ring 314 and the ferrite magnetic ring 315 are positioned on the same straight line; the X safety capacitor 312 is arranged in a groove of the base 316 at the input end side of the copper bar 311; one of the two sets of Y-type capacitors 313 is mounted in the grooves of the bases 316 on both sides of the ferrite bead 315, and the other set of Y-type capacitors 313 is mounted in the grooves of the bases 316 on both sides of the nanocrystal bead 314.

Magnetic interference generated by the IGBT power output module 22 and the copper bar 311 firstly passes through a group of Y safety capacitors 313, and the interference between the copper bar 311 and the transverse isolator is filtered by the group of Y safety capacitors 313; the ferrite magnetic ring 315 and the nanocrystalline magnetic ring 314 are used in combination, so that the suppression effects of the ferrite magnetic ring and the nanocrystalline magnetic ring in different frequency sections can be fully exerted, and the differential mode interference and the common mode interference generated by the IGBT power output module 22 are filtered; then the electromagnetic interference of the copper bar 311 is filtered again through another group of Y-type safety capacitors 313; and finally, filtering the electromagnetic interference among the copper bars 311 through an X safety capacitor 312.

Through the setting of above-mentioned magnetic ring and ann rule electric capacity, can realize carrying out multistage filtration to the magnetic interference through copper bar 311 and IGBT power output module 22 to reduce the electromagnetic interference who transmits to the low pressure part, further reduced machine controller's EMC electromagnetic interference ability, when protecting machine controller not disturbed by external device, also can not disturb external device.

It should be noted that there is no correlation between the current flowing direction of the DC filtering module 31 and the electromagnetic interference flowing direction, and the current flowing direction of the DC filtering module 31 and the electromagnetic interference flowing direction are opposite directions in the embodiment of the present application, and the current flowing direction of the DC filtering module 31 is as follows: the X safety capacitor 312 receives the direct current input into the copper bar 311, and filters the direct current noise through the filtering of the X safety capacitor 312 and the two sets of Y safety capacitors 313.

Referring to fig. 1 and 5, the first device placement groove 2 is provided therein with a third shield plate 13, a cooling member 23, a first high-voltage member, and a first low-voltage member, the first high-voltage member including: the IGBT power output module 22 and the DC-LINK capacitor 24, the first low voltage component including the drive board 21. In the first device placement slot 2, the drive board 21, the third shield board 13, the IGBT power output module 22, the cooling part 23, and the DC-LINK capacitor 24 are arranged in this order along the direction from the upper cover 14 to the lower housing 15.

The driving board 21 is a second core control part of the motor controller, and is mainly used for controlling the IGBT power output module 22 to output a control signal to control the start/stop, the rotation speed, the rotation direction, and the like of the motor.

In the structure of the driving plate 21, since the external ambient temperature changes in real time, the internal device temperature may change in real time, and when the cooling part 23 may be damaged, the cooling liquid temperature may be high. Under the condition that the temperature of the cooling liquid in the cooling part 23 is high and the temperatures of the first device and the second device are also high, the cooling part 23 cannot cool the first device and the second device, and in a serious condition, the first device and the second device are damaged due to high temperature.

Therefore, the temperature of the cooling liquid in the cooling part 23 is monitored in real time to avoid the situation that the cooling part 23 is damaged to cause the first device and the second device to be damaged. Referring to fig. 6 and 7, a temperature sensor 212 is disposed on the driving plate 21 according to the embodiment of the present disclosure, a temperature conducting element 231 is disposed at a water inlet of the cooling component 23, one end of the temperature conducting element 231 is connected to a surface of the cooling component 23, the other end of the temperature conducting element 231 extends to the temperature sensor 212, the temperature conducting element 231 may be an aluminum pillar, so as to transmit the temperature at the water inlet of the cooling component 23 to the temperature sensor 212, and the temperature sensor 212 feeds back the temperature of the cooling component 23 to a vehicle controller or a display device, so as to realize real-time monitoring of the temperature of the cooling component 23.

The temperature sensor 212 is configured to detect a temperature of the temperature conducting element 231, an output end of the temperature sensor 212 is electrically connected to a display device, such as a display or a central control panel, on the vehicle controller or the vehicle, so as to transmit a temperature parameter of the cooling component 23 to the vehicle controller and the display device, and a worker can monitor the temperature of the cooling component 23 through the display device or the vehicle controller, so as to maintain the cooling component 23, recover a cooling effect of the cooling component 23 in time, and prevent the first device and the second device from being damaged due to incapability of cooling after the cooling component 23 is damaged.

In the structure of the temperature conducting element 231, due to the direct contact between the temperature sensor 212 and the temperature conducting element 231, on one hand, the temperature sensor 212 collides with the temperature conducting element 231 in the installation process, so that the temperature sensor 212 is damaged, and on the other hand, when the temperature conducting element 231 is deformed due to thermal expansion, a large stress is generated between the temperature conducting element 231 and the temperature sensor 212, so that the temperature sensor 212 is damaged.

Therefore, in order to avoid the damage of the temperature sensor 212, the heat conduction material is filled between the temperature conduction piece 231 and the temperature sensor 212 in the embodiment of the application, the heat conduction material can be heat conduction silicone grease, heat conduction glue and the like, the temperature of the temperature conduction piece 231 can be transmitted to the heat conduction material, and the temperature is transmitted to the temperature sensor 212 through the heat conduction material.

By filling the heat conduction material between the temperature conduction member 231 and the temperature sensor 212, heat can be smoothly transferred to the temperature sensor 212, and on the first hand, in the process of mounting the temperature sensor 212, even if the temperature sensor collides with the heat conduction pad, the temperature sensor can be buffered by the heat conduction pad without being damaged; the second aspect can neutralize the stress between the thermal pad and the temperature sensor 212 by the deformation of the thermal pad when the thermal pad is pressed against the temperature sensor 212 when the temperature transmitter 231 is deformed and expanded, thereby ensuring that the temperature sensor 212 is not damaged by the excessive stress; in the third aspect, the temperature sensor 212 and the temperature conducting element 231 may be fixed to avoid the problem that the sampled data of the temperature sensor 212 is deviated due to poor contact between the temperature sensor 212 and the temperature conducting element 231.

The third shielding plate 13 is an electromagnetic interference shielding member of the motor controller, and the third shielding plate 13 is disposed between the driving plate 21 and the IGBT power output module 22.

Referring to fig. 5, the third shield plate 13 includes: the shield 131 and the insulator 132 are connected to each other, and the shield 131 and the insulator 132 may be connected by bolts. The shielding piece 131 is arranged below the driving plate 21, and the shielding piece 131 can shield electromagnetic interference of the IGBT power output module 22 to the driving plate 21; the insulating member 132 is disposed above the IGBT power output module 22, and the insulating member 132 can prevent the current of the driving board 21 from flowing into the IGBT module 222 of the IGBT power output module 22.

The IGBT power output module 22 is a conversion part of the entire motor controller, and the IGBT power output module 22 can convert direct current into alternating current and output the alternating current to the motor under the control of the control board, so as to provide alternating current for the motor. The IGBT power output module 22 is arranged between the driving plate 21 and the cooling part 23, the input end of the IGBT power output module 22 is electrically connected with the output end of the DC-LINK capacitor 24, and the output end of the IGBT power output module 22 is connected with the motor.

Referring to fig. 5, the IGBT power output module 22 includes: the switching module 221 and the IGBT module 222 are arranged in sequence; the driving plate 21 is provided with a current Hall sensor 211; the switching module 221 is inserted into the current hall sensor 211; the driving board 21 is connected above the IGBT module 222.

In the structure of the IGBT power output module 22, the positional connection relationship between the relay module 221 and the IGBT module 222 includes: the switching module 221 is disposed above the IGBT module 222, the switching module 221 includes a horizontal section and a vertical section, the vertical section of the switching module 221 is located on one side of the IGBT module 222 and the DC-LINK capacitor 24, the horizontal section of the switching module 221 is located in the first device placing groove 2, is located above the first shielding plate 11, and is flush with the control board, and the copper column 2211 is disposed below the horizontal section of the switching module 221 to be inserted into the current hall sensor 211 on the drive board 21. The IGBT module 222 is disposed between the insulator 132 and the cooling member 23, and the IGBT module 222 is mounted to the cooling member 23 by bolts.

The staff can be with IGBT module 222 and switching module 221 among IGBT power output module 22, and drive plate 21, shield 131, insulator 132 preinstall for IGBT power output module 22 forms a whole with drive plate 21, shield 131, insulator 132, installs again to first device standing groove 2 in, thereby makes the staff more convenient to IGBT power output module 22's installation.

In the structure of the IGBT power output module 22, the electrical connection relationship between the relay module 221 and the IGBT module 222 includes: the input end of the IGBT module 222 is electrically connected to the output end of the DC-LINK capacitor 24, the output end of the IGBT module 222 is electrically connected to the input end of the adaptor module 221, and the output end of the adaptor module 221 is provided with a three-phase output copper bar 2212 and is electrically connected to the motor through the three-phase output copper bar 2212.

Specifically, the IGBT module 222 may convert the input dc power into ac power and output the ac power to the motor through the three-phase output copper bar 2212 of the adaptor module 221, so as to provide ac power for the motor. The current hall sensor 211 may detect a change in a waveform of the IGBT module 222 converting a direct current into an alternating current through the copper pillar 2211 to determine whether the converted waveform is normal.

In the structure of the first device placement groove 2, since the IGBT modules 222 are bolted to the cooling member 23, the IGBT modules 222 of different powers and the same package size can be bolted to the cooling member 23 in the same motor controller, and replacement between the IGBT modules 222 of different powers can be realized.

In the structure of the first device placement groove 2, since the three-phase output copper bar 2212 is disposed on the adaptor module 221, electromagnetic interference may be generated when the three-phase output copper bar 2212 is used as a first high-voltage component.

Therefore, in order to shield the electromagnetic interference of the three-phase output copper bar 2212, referring to fig. 8, a magnetic ring groove 2213 is preset on one surface of the adaptor module 221 facing the current hall sensor 211, and a worker may install a magnetic ring in the magnetic ring groove 2213 to shield the three-phase output copper bar 2212 from the electromagnetic interference through the magnetic ring.

The cooling component 23 serves as a cooling part of the motor controller and is mainly used for synchronously cooling the IGBT power output module 22 and the DC-LINK capacitor 24. The cooling component 23 is detachably connected within the motor controller housing 1 and is disposed between the IGBT power output module 22 and the DC-LINK capacitor 24.

In the structure of the cooling member 23, a circulating cooling liquid is introduced. Referring to fig. 5, in the process of cooling the IGBT power output module 22 and the DC-LINK capacitor 24, since the IGBT power output module 22 and the DC-LINK capacitor 24 are located at two sides of the cooling part 23, and the cooling liquid at the same temperature can simultaneously pass through the IGBT power output module 22 and the DC-LINK capacitor 24, the cooling effect between the IGBT power output module 22 and the DC-LINK capacitor 24 is the same, and the cooling effect of the IGBT power output module 22 or the DC-LINK capacitor 24 is not deteriorated.

In the structure of the cooling component 23, the water outlet of the traditional cooling component 23 is communicated with the water inlet of the motor through a water pipe, and the water outlet of the cooling component 23 and the water inlet of the motor are respectively provided with a water nozzle to realize the connection of the water pipe between the water outlet and the water inlet of the motor.

In order to reduce the cost of connection between the water outlet of the cooling member 23 and the water inlet of the motor, the assembly efficiency therebetween is improved. Referring to fig. 9, the cooling member 23 and the motor in the embodiment of the present application are connected through a double-spherical nozzle 6, the double-spherical nozzle 6 includes a cylindrical aluminum pipe 61 and a double-spherical sealing sleeve 62, and the sealing sleeve 62 is sleeved outside the aluminum pipe 61.

When the cooling component 23 is connected with the motor, two ends of the sealing sleeve 62 are respectively plugged into the water outlet of the cooling component 23 and the water inlet of the motor, and because the volumes of the two ends of the sealing sleeve 62 are larger than the volume of the middle of the sealing sleeve 62, the two ends of the sealing sleeve 62 can be connected between the water outlet of the cooling component 23 and the water inlet of the motor in an interference manner.

Therefore, through the arrangement of the double-spherical water nozzle 6, when the water inlet of the cooling component 23 is communicated with the water outlet of the motor, two ends of the sealing sleeve 62 are directly plugged into the open ends of the cooling component 23 and the motor, and the water pipes are not required to be connected after the water nozzles are respectively arranged on the cooling component 23 and the motor, so that the assembly procedure is less, and the assembly efficiency is higher; compared with the traditional three parts of two water nozzles and one water pipe, the double-spherical water nozzle 6 only needs two parts of the aluminum pipe 61 and the sealing sleeve 62, and the production cost is lower.

In the above-described configuration, in order to replace the position of the cooling member 23, the present embodiment adjusts the spatial layout in the motor controller, and divides the space into three independent regions for the first device placement slot 2, the second device placement slot 3, and the third device placement slot 4; the DC filtering module 31 is also integrated, so that the space in the motor controller is saved; the positions of the DC filtering module 31, the IGBT power output module 22, the control panel and the DC-LINK capacitor 24 are changed, so that the position adjustment of the cooling part 23 is realized on the premise of not increasing the volume of an additional motor controller, and finally the IGBT power output module 22 and the DCLINK capacitor are synchronously cooled.

In the above configuration, when the motor is supplied with power, the flow of the partial current is:

the control board obtains a low-voltage current signal through the low-voltage connector 151 and the rotary transformer wire harness 5, and then controls the drive board 21.

The high-voltage direct current of the external power supply is filtered by the DC filtering module 31, and finally converted into alternating current by the DC-LINK capacitor 24 and the IGBT power output module 22 to be input into the motor so as to supply power to the motor.

When the motor is controlled to start and stop, the driving board 21 receives a control signal sent by the control board to control the direction and the magnitude of the alternating current in the IGBT power output module 22, so as to control the motor.

EXAMPLE III

Based on the same inventive concept, a third embodiment of the present application provides a vehicle, where the vehicle is provided with a motor controller as provided in the second embodiment, and the motor controller is provided with a motor controller housing as provided in the first embodiment.

It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

It should also be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Moreover, relational terms such as "first" and "second" are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions or should not be construed as indicating or implying relative importance. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal 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 terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or terminal equipment comprising the element.

The technical solutions provided by the present application are described in detail above, and the principles and embodiments of the present application are described herein by using specific examples, which are only used to help understanding the present application, and the content of the present description should not be construed as limiting the present application. While various modifications of the illustrative embodiments and applications will be apparent to those skilled in the art based upon this disclosure, it is not necessary or necessary to exhaustively enumerate all embodiments, and all obvious variations and modifications can be resorted to, falling within the scope of the disclosure.

Claims

1. A motor controller housing comprising a plurality of device placement slots for placing at least a first device and a second device; wherein a cooling member (23) is provided between the first device and the second device; when a cooling liquid flows through the cooling member (23), the cooling member is used for simultaneously cooling the first device and the second device.

2. A motor controller housing according to claim 1, characterized in that the first component is a DC-LINK capacitor (24) and the second component is an IGBT power output module (22).

3. A motor controller housing according to claim 1, characterized in that the cooling member (23) is detachably connected to the motor controller housing (1).

4. The motor controller housing of claim 1, wherein the plurality of device placement slots are further configured to place at least a first high voltage component, a first low voltage component, and a second high voltage component, wherein the first high voltage component and the first low voltage component are located in the same device placement slot;

5. The motor controller housing according to claim 1, characterized in that the water outlet of the cooling member (23) is in communication with the water inlet of the motor through a double-ball water nozzle (6).

6. A motor controller comprising a motor controller housing according to any one of claims 1 to 5.

7. A motor controller according to claim 6, characterized in that a drive plate (21) and an IGBT power output module (22) are provided within the motor controller housing (1), the IGBT power output module (22) comprising: the switching module (221) and the IGBT module (222) are arranged in sequence; a current Hall sensor (211) is arranged on the driving plate (21);

the switching module (221) is inserted into the current Hall sensor (211);

the drive board (21) is connected above the IGBT module (222).

8. The motor controller according to claim 7, wherein a temperature sensor (212) is provided on the driving plate (21), and a temperature conduction member (231) facing the temperature sensor (212) is provided on the cooling part (23);

the temperature conductor (231) is used for conducting the temperature of the cooling component (23) to the temperature sensor (212).

9. A motor controller according to claim 1, characterised in that a second high voltage component is arranged in the motor controller housing (1), the second high voltage component comprising a DC filter module (31), the DC filter module (31) comprising: the device comprises a copper bar (311), a base (316), a magnetic ring and a plurality of safety capacitors;

the magnetic ring and the safety capacitor are fixed on the base (316);

the copper bar (311) is used for electrically connecting the safety capacitors;

10. A vehicle provided with a motor controller according to any one of claims 6 to 9, the motor controller being provided with a motor controller housing according to any one of claims 1 to 5.