A motor and electronic control integrated system

Abstract

The present application relates to a motor and electric control integrated system, belonging to the technical field of new energy vehicles, including a motor sub-assembly, which includes an outer shell and a motor located in the outer shell, and a first water channel is formed between the outer shell and the motor; an electric control sub-assembly, which includes a rear shell detachably connected to the outer shell, and an IGBT module electrically connected to the motor is arranged in the rear shell, and a second water channel for cooling the IGBT module. The motor sub-assembly and the electric control sub-assembly can be produced as separate assembly modules, and there is no need to add a plate to close the rear shell separately, which reduces the cost, and the first water channel and the second water channel are independently arranged on the outer shell and the rear shell, respectively, the first water channel cools the motor, and the second water channel cools the IGBT module on the rear shell, the cavities of the first water channel and the second water channel are independent, the heat does not interfere with each other, the overall heat exchange effect is good, the temperature rise of the motor and the IGBT module is small and the temperature peak is small, which is conducive to the continuous normal operation of the motor and the IGBT module.

Description

Technical Field

[0001] The present application relates to the field of new energy vehicle technology, and in particular to a motor and electronic control integrated system. Background Art

[0002] With the demand for energy conservation, emission reduction and air pollution control, new energy vehicles are gradually being commercialized in the market, and electric vehicles are the main force of new energy vehicles. Electric vehicles are divided into pure electric vehicles and hybrid vehicles, among which the motor and controller are important components of electric vehicles. However, the motor and controller on the market are arranged as two independent components on the whole vehicle, which requires a large installation space and has obvious limitations on the lightweight and integrated design of the vehicle.

[0003] In the related art, the patent with publication number CN219247652U discloses an integrated structure of a motor and a controller, in which the rear end of the water-cooled shell of the motor is extended to form a shell for accommodating the electronic control components. The various sub-components of the electronic control are installed from bottom to top in the space of the extended shell at the rear end of the motor. The cooling water channel of the electronic control component adopts a separate water-cooled plate device, which has high installation requirements. A cover plate is added to the three-phase part connecting the motor and the electronic control, which increases the cost. This integrated structure is not conducive to subsequent after-sales maintenance and is prone to customer complaints. At the same time, the water-cooled plate device is directly installed on the motor shell. The water-cooled plate device and the motor shell are easy to warm each other, and the heat interferes with each other, resulting in poor heat exchange effect, increased temperature of the motor and the electronic control components, and large temperature peaks, which affect the service life of the motor and the electronic control components.

[0004] Therefore, it is necessary to design a motor and electronic control integrated system to overcome the above problems. Summary of the invention

[0005] The embodiment of the present application provides a motor and electronic control integrated system to solve the problems of high cost, inconvenient maintenance and poor heat exchange effect in the integrated structure of the motor and controller in the related art.

[0006] The embodiment of the present application provides a motor and electronic control integrated system, including:

[0007] A motor subassembly, the motor subassembly comprising an outer shell and a motor located in the outer shell, wherein a first water channel is formed between the outer shell and the motor;

[0008] The electric control subassembly comprises a rear shell body detachably connected to the outer shell body, an IGBT module electrically connected to the motor and a second water channel for cooling the IGBT module are arranged in the rear shell body.

[0009] In some embodiments, the rear shell has a first accommodating cavity opening toward the outer shell, the IGBT module is arranged on the wall of the first accommodating cavity away from the outer shell, one end of the IGBT module is connected to the three-phase lead-out terminal of the motor through an AC terminal, and the other end of the IGBT module is connected to a bus capacitor.

[0010] In some embodiments, a heat exchange groove and a sealing plate for closing the opening of the heat exchange groove are provided on the side of the rear shell away from the outer shell, the heat exchange groove and the sealing plate form the second water channel, and a water inlet nozzle and a water outlet nozzle respectively connected to the two ends of the heat exchange groove are provided on the side of the rear shell close to the outer shell.

[0011] In some embodiments, the heat exchange tank includes an inlet section connected to a water inlet nozzle, an outlet section connected to a water outlet nozzle, and a middle section connecting the inlet section and the outlet section, and the middle section is provided with evenly distributed diverter plates, and the inlet section and the outlet section gradually shrink and narrow in a direction away from the middle section.

[0012] In some embodiments, the motor includes a motor housing and a drive assembly located in the motor housing, the motor housing includes a front end cover, a cylinder and a rear end cover, the rear end cover is integrally formed with the cylinder, a spiral water groove is provided on the outer wall of the cylinder, the spiral water groove and the outer shell form the first water channel, and the outer shell is provided with a water inlet and a water outlet connected to the spiral water groove.

[0013] In some embodiments, the first water channel and the second water channel are interconnected, the outer shell and the rear shell are sealed and connected via an annular sealing ring, and the connection between the first water channel and the second water channel is located at the periphery of the annular sealing ring.

[0014] In some embodiments, the drive assembly includes a motor shaft, a stator and a rotor, and the two ends of the motor shaft are coaxially rotatably connected to the front cover and the rear cover respectively. The motor shaft is sequentially sleeved with the rotor and the stator from the inside to the outside, and the winding end of the stator close to the outer shell is provided with a three-phase lead-out terminal that passes through the rear cover, and the rear cover and the three-phase lead-out terminal are sealed by a sealing block.

[0015] In some embodiments, the electronic control subassembly also includes a drive board and a control board electrically connected to the drive board, the drive board is connected to the side of the IGBT module away from the second water channel, the side of the rear shell away from the outer shell is provided with a second accommodating cavity and a cover plate closing the second accommodating cavity, and the control board is located in the second accommodating cavity.

[0016] In some embodiments, a rotary transformer electrically connected to the control board is provided on the motor shaft, a mounting hole for accommodating the rotary transformer and a pressure plate for fixing the rotary transformer in the mounting hole are provided on the rear end cover, a mounting cover and an annular sealing gasket connecting the mounting cover and the rear end cover are provided in the mounting hole, and the annular sealing gasket surrounds the pressure plate and is sealed and connected to the wiring harness of the rotary transformer.

[0017] In some embodiments, a temperature sensor for measuring the stator is disposed in the motor, the temperature sensor passes through the rear end cover and is electrically connected to the control board, and the temperature sensor and the rear end cover are sealed via a sealing sleeve.

[0018] The beneficial effects of the technical solution provided by this application include:

[0019] An embodiment of the present application provides an integrated system of a motor and an electronic control system. Since the motor subassembly includes an outer shell and a motor located in the outer shell, a first water channel is formed between the outer shell and the motor; the electronic control subassembly includes a rear shell detachably connected to the outer shell, an IGBT module electrically connected to the motor is arranged in the rear shell, and a second water channel for cooling the IGBT module.

[0020] Therefore, the motor subassembly and the electronic control subassembly can be produced as separate assembly modules. Both are easy to install and disassemble, which provides convenience for rapid production and after-sales maintenance. The rear shell and the outer shell form a whole after installation, and there is no need to separately add panels to close the rear shell, which reduces costs. The first water channel and the second water channel are independently arranged on the outer shell and the rear shell, respectively. The first water channel cools the motor, and the second water channel cools the IGBT module on the rear shell. The cavities of the first water channel and the second water channel are independent, and the heat does not interfere with each other. The overall heat exchange effect is good, the temperature rise of the motor and the IGBT module is small, and the temperature peak is small, which is conducive to the continuous normal operation of the motor and the IGBT module. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application;

[0023] Figure 2 It is a structural schematic diagram of the motor sub-assembly of an embodiment of the present application;

[0024] Figure 3 A structural cross-sectional view of a motor sub-assembly according to an embodiment of the present application;

[0025] Figure 4 This is a structural front view of a pressing plate according to an embodiment of the present application;

[0026] Figure 5 This is a schematic diagram of the structure of the electronic control sub-assembly of an embodiment of the present application;

[0027] Figure 6 This is a structural front view of the heat exchange tank of an embodiment of the present application;

[0028] Figure 7 It is a structural cross-sectional view of the electronic control sub-assembly of an embodiment of the present application.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 10. Motor subassembly; 11. Outer shell; 111. Junction box; 12. Motor; 121. Motor shell; 1211. Front cover; 1212. Cylinder; 1213. Rear cover; 122. Drive assembly; 1221. Motor shaft; 1222. Stator; 1223. Rotor; 1224. Three-phase lead-out terminal; 13. First water channel; 131. Spiral water tank; 132. Water inlet; 133. Water outlet;

[0031] 14. AC terminal; 15. busbar capacitor; 16. annular sealing ring; 17. sealing block; 18. rotary transformer; 19. pressing plate; 191. mounting cover; 192. annular sealing gasket; 193. temperature sensor; 194. sealing sleeve;

[0032] 20. Electronic control sub-assembly; 21. Rear housing; 211. First accommodating chamber; 212. Second accommodating chamber; 22. IGBT module; 23. Second water channel; 231. Heat exchange slot; 232. Sealing plate; 233. Water inlet nozzle; 234. Water outlet nozzle; 235. Diverter plate; 24. Drive plate; 25. Control plate; 26. Cover plate; 27. Rectangular plate; 28. Ventilation plug. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0034] The embodiment of the present application provides a motor and electronic control integrated system, which can solve the problems of high cost, inconvenient maintenance and poor heat exchange effect of the integrated structure of the motor and controller in the related art.

[0035] See also Figures 1 to 7 As shown, the embodiment of the present application provides a motor and electronic control integrated system, including:

[0036] The motor subassembly 10 includes an outer shell 11 and a motor 12 located in the outer shell 11, and a first water channel 13 is formed between the outer shell 11 and the motor 12;

[0037] The electric control subassembly 20 includes a rear housing 21 detachably connected to the outer housing 11 , and an IGBT module 22 electrically connected to the motor 12 and a second water channel 23 for cooling the IGBT module 22 are arranged in the rear housing 21 .

[0038] The motor and electronic control integrated system of the embodiment of the present application is provided with a motor subassembly 10 and an electronic control subassembly 20. The motor subassembly 10 and the electronic control subassembly 20 have the advantages of convenient installation and disassembly. The motor subassembly 10 includes an outer shell 11 and a motor 12 located in the outer shell 11, and a first water channel 13 is formed between the outer shell 11 and the motor 12; the electronic control subassembly 20 includes a rear shell 21 detachably connected to the outer shell 11, and an IGBT module 22 electrically connected to the motor 12 and a second water channel 23 for cooling the IGBT module 22 are arranged in the rear shell 21.

[0039] Specifically, the motor subassembly 10 and the electronic control subassembly 20 are produced as separate assembly modules respectively. The outer shell 11 of the motor subassembly 10 and the rear shell 21 of the electronic control subassembly are detachably installed by bolts, which provides convenience for rapid production and after-sales maintenance. The rear shell 21 and the outer shell 11 form a whole after installation, and there is no need to separately add a plate to close the rear shell 21, thereby reducing production costs.

[0040] The first water channel 13 and the second water channel 23 are independently arranged on the outer shell 11 and the rear shell 21 respectively. The first water channel 13 cools the motor 12, and the second water channel 23 cools the IGBT module 22 on the rear shell 21. The cavities of the first water channel 13 and the second water channel 23 are independent, and the heat does not interfere with each other. Compared with the integrated structure of the motor 12 and the controller in the related art, there will be no mutual heating. The overall heat exchange effect is good, the temperature rise of the motor 12 and the IGBT module 22 is small, and the temperature peak is small, which is beneficial to the continuous normal operation of the motor 12 and the IGBT module 22.

[0041] In some alternative embodiments: See Figures 1 to 7As shown, an embodiment of the present application provides a motor and electronic control integrated system, wherein the rear shell 21 of the motor and electronic control integrated system has a first accommodating cavity 211 opening toward the outer shell 11, and the IGBT module 22 is arranged on the wall of the first accommodating cavity 211 away from the outer shell 11, and one end of the IGBT module 22 is connected to the three-phase lead-out terminal 1224 of the motor 12 through the AC terminal 14, and the other end of the IGBT module 22 is connected to the bus capacitor 15.

[0042] The rear shell 21 of the embodiment of the present application has a first accommodating cavity 211 with an opening toward the outer shell 11. The IGBT module 22 is installed in the first accommodating cavity 211 and away from the motor 12 and the outer shell 11 to avoid the motor 12 and the IGBT module 22 from contacting and warming each other. At the same time, the opening of the first accommodating cavity 211 is closed by the end face of the outer shell 11. The rear shell 21 and the outer shell 11 can be connected by bolts, which is convenient for installation. One end of the IGBT module 22 is connected to the three-phase lead-out terminal 1224 of the motor 12 through the AC terminal 14, and the other end of the IGBT module 22 is connected to the bus capacitor 15.

[0043] Exemplarily, the AC terminal 14 is installed in the first accommodating cavity 211 and connected to the top of the IGBT module 22. The top of the rear housing 21 is provided with an opening connected to the first accommodating cavity 211. The opening is used to expose the three-phase copper bar of the AC terminal 14, which is convenient for installing fasteners to connect the three-phase copper bar and the three-phase lead-out terminal 1224 of the motor 12. The opening is closed by installing a rectangular plate 27. The bus capacitor 15 is installed in the first accommodating cavity 211 and connected to the bottom of the IGBT module 22. The bus capacitor 15 extends outside the first accommodating cavity 211 to the junction box 111 integrally formed with the outer housing 11, which is convenient for connecting an external DC power supply.

[0044] In some alternative embodiments: See Figures 1 to 7 As shown, an embodiment of the present application provides a motor and electronic control integrated system, in which a heat exchange groove 231 and a sealing plate 232 for closing the opening of the heat exchange groove 231 are arranged on the side of the rear shell 21 away from the outer shell 11, the heat exchange groove 231 and the sealing plate 232 form a second water channel 23, and a water inlet nozzle 233 and a water outlet nozzle 234 respectively connecting the two ends of the heat exchange groove 231 are arranged on the side of the rear shell 21 close to the outer shell 11.

[0045] The second water channel 23 of the embodiment of the present application is attached to the back side of the IGBT module 22. The second water channel 23 is surrounded by a heat exchange groove 231 and a sealing plate 232 on the outer shell 11. The heat exchange groove 231 is arranged on the side of the rear shell 21 away from the outer shell 11. The sealing plate 232 closes the opening of the heat exchange groove 231. A water inlet 233 and a water outlet 234 respectively connected to the two ends of the heat exchange groove 231 are arranged on the side of the rear shell 21 close to the outer shell 11. The coolant can enter the heat exchange groove 231 through the water inlet 233 and then exchange heat with the IGBT module 22 and then flow out through the water outlet 234, thereby specifically cooling the IGBT module 22.

[0046] Specifically, the heat exchange groove 231 is integrally formed on the side of the rear shell 21 away from the outer shell 11, the sealing plate 232 is connected to the rear shell 21 by welding to close the opening of the heat exchange groove 231, and the water inlet nozzle 233 and the water outlet nozzle 234 are integrally formed on the rear shell 21 and respectively connect the two ends of the heat exchange groove 231.

[0047] In some alternative embodiments: See Figures 1 to 7 As shown, an embodiment of the present application provides a motor and electronic control integrated system, wherein a heat exchanger tank 231 of the motor and electronic control integrated system includes an inlet section connected to a water inlet nozzle 233, an outlet section connected to a water outlet nozzle 234, and a middle section connected to the inlet section and the outlet section, wherein evenly distributed diverter plates 235 are arranged in the middle section, and the inlet section and the outlet section gradually shrink and narrow in a direction away from the middle section.

[0048] The heat exchange groove 231 of the embodiment of the present application is connected in sequence to the inlet section, the middle section and the outlet section, and a uniformly distributed diverter plate 235 is arranged in the middle section. The diverter plate 235 can increase the heat exchange area and improve the heat exchange efficiency. The inlet section and the outlet section gradually shrink and narrow in the direction away from the middle section to avoid sudden changes in the flow cross-section and increase the flow resistance of the coolant.

[0049] Specifically, the area covered by the heat exchange surface of the middle section is not less than the back area of ​​the IGBT module 22, ensuring sufficient heat exchange coverage. The diverter plate 235 is integrally formed on the bottom surface of the groove of the middle section. Several diverter plates 235 are distributed in an array and are staggered between two adjacent columns. The diverter plates 235 extend along the flow direction of the coolant. The setting of the diverter plates 235 can reduce the flow rate of the coolant and the heat exchange area, thereby ensuring the heat exchange effect on the IGBT module 22.

[0050] In some alternative embodiments: See Figures 1 to 7As shown, an embodiment of the present application provides a motor and electronic control integrated system, wherein the motor 12 of the motor and electronic control integrated system includes a motor housing 121 and a drive assembly 122 located in the motor housing 121, the motor housing 121 includes a front end cover 1211, a cylinder 1212 and a rear end cover 1213, the rear end cover 1213 and the cylinder 1212 are integrally formed, a spiral water groove 131 is arranged on the outer wall of the cylinder 1212, the spiral water groove 131 and the outer shell 11 form a first water channel 13, and the outer shell 11 is provided with a water inlet 132 and a water outlet 133 connected to the spiral water groove 131.

[0051] The motor 12 of the embodiment of the present application includes a motor housing 121 and a drive assembly 122 installed in the motor housing 121. The motor housing 121 includes a front end cover 1211, a cylinder 1212 and a rear end cover 1213. The rear end cover 1213 is integrally formed with the cylinder 1212 and is located in the outer shell 11. The front end cover 1211 is connected to the front end of the outer shell 11 by bolts. A spiral water groove 131 is provided on the outer wall of the cylinder 1212. The cylinder 1212 and the outer shell 11 are connected by friction welding. The spiral water groove 131 and the inner wall of the outer shell 11 form a first water channel 13. The outer shell 11 is provided with a water inlet 132 and a water outlet 133 connected to the spiral water groove 131. The spiral water groove 131 increases the flow path of the coolant to ensure sufficient heat exchange between the coolant and the motor housing 121.

[0052] In some alternative embodiments: See Figures 1 to 7 As shown, an embodiment of the present application provides a motor and electronic control integrated system, in which the first water channel 13 and the second water channel 23 of the motor and electronic control integrated system are interconnected, the outer shell 11 and the rear shell 21 are sealed and connected by an annular sealing ring 16, and the connection between the first water channel 13 and the second water channel 23 is located on the periphery of the annular sealing ring 16.

[0053] The first water channel 13 and the second water channel 23 of the embodiment of the present application are interconnected, and the outer shell 11 and the rear shell 21 are sealed and connected via an annular sealing ring 16. The connection between the first water channel 13 and the second water channel 23 is located at the periphery of the annular sealing ring 16, thereby ensuring that the coolant in the first water channel 13 and the second water channel 23 will not leak into the annular sealing ring 16, thereby ensuring the normal operation of the components in the outer shell 11 and the rear shell 21.

[0054] Specifically, the water inlet 233 of the second water channel 23 faces the outer shell 11, and the water outlet 133 of the first water channel 13 faces the rear shell 21. When the outer shell 11 and the rear shell 21 are installed, the water inlet 233 of the second water channel 23 can be plugged into the water outlet 133 of the first water channel 13. The water inlet 233 of the second water channel 23 and the water outlet 133 of the first water channel 13 can be sealed with rubber rings at the same time. The water inlet 233 of the second water channel 23 and the water outlet 133 of the first water channel 13 are both located on the periphery of the annular sealing ring 16. In addition, a vent plug 28 can be installed on the rear shell 21 to balance the air pressure inside the rear shell 21 and the outside.

[0055] In some alternative embodiments: See Figures 1 to 7 As shown, an embodiment of the present application provides a motor and electronic control integrated system, wherein a driving component 122 of the motor and electronic control integrated system includes a motor shaft 1221, a stator 1222 and a rotor 1223, wherein both ends of the motor shaft 1221 are coaxially rotatably connected to a front end cover 1211 and a rear end cover 1213, respectively, and the motor shaft 1221 is sequentially sleeved with the rotor 1223 and the stator 1222 from the inside to the outside, and a three-phase lead-out terminal 1224 penetrating the rear end cover 1213 is provided at a winding end of the stator 1222 close to the outer shell 11, and the rear end cover 1213 and the three-phase lead-out terminal 1224 are sealed by a sealing block 17.

[0056] The driving component 122 of the embodiment of the present application includes a motor shaft 1221, a stator 1222 and a rotor 1223. The two ends of the motor shaft 1221 are coaxially rotatably connected with the front cover 1211 and the rear cover 1213 respectively. The motor shaft 1221 is sequentially sleeved with the rotor 1223 and the stator 1222 from the inside to the outside. The winding end of the stator 1222 close to the outer shell 11 is provided with a three-phase lead-out terminal 1224 that passes through the rear cover 1213. The rear cover 1213 and the three-phase lead-out terminal 1224 are sealed by a sealing block 17, which can prevent water vapor from entering the interior of the motor 12 and help reduce the impact of condensation.

[0057] In some alternative embodiments: See Figures 1 to 7 As shown, an embodiment of the present application provides a motor and electronic control integrated system, wherein the electronic control subassembly 20 of the motor and electronic control integrated system further includes a drive board 24 and a control board 25 electrically connected to the drive board 24, the drive board 24 is connected to a side of the IGBT module 22 away from the second water channel 23, a second accommodating cavity 212 and a cover plate 26 for closing the second accommodating cavity 212 are provided on a side of the rear shell 21 away from the outer shell 11, and the control board 25 is located in the second accommodating cavity 212.

[0058] In the embodiment of the present application, a driving board 24 and a control board 25 for cooperating with the motor 12 are also installed in the rear shell 21. The driving board 24 is connected to the side of the IGBT module 22 away from the second water channel 23. A second accommodating cavity 212 and a cover plate 26 for closing the second accommodating cavity 212 are provided on the side of the rear shell 21 away from the outer shell 11. The control board 25 is located in the second accommodating cavity 212. The back side of the control board 25 corresponds to the installation position of the bus capacitor 15. The driving board 24 and the control board 25 are arranged in front and behind, which reasonably utilizes the space inside the rear shell 21, reduces the axial length of the overall structure, and is conducive to reducing production costs.

[0059] In some alternative embodiments: See Figures 1 to 7 As shown, an embodiment of the present application provides a motor and electronic control integrated system, in which a rotary transformer 18 electrically connected to a control board 25 is provided on a motor shaft 1221 of the motor and electronic control integrated system, a mounting hole for accommodating the rotary transformer 18 and a pressure plate 19 for fixing the rotary transformer 18 in the mounting hole are provided on the rear end cover 1213, a mounting cover 191 and an annular sealing gasket 192 connecting the mounting cover 191 and the rear end cover 1213 are provided in the mounting hole, the annular sealing gasket 192 surrounds the pressure plate 19 and is sealed and connected to the wiring harness of the rotary transformer 18.

[0060] A rotary transformer 18 is installed on the rear end cover 1213 of the embodiment of the present application. The rotary transformer 18 is used to measure the angular velocity and angular displacement of the motor shaft 1221. A stepped mounting hole is provided on the rear end cover 1213. The rotary transformer 18 abuts against the step of the mounting hole. At the same time, a pressure plate 19 for fixing the rotary transformer 18 in the mounting hole is bolted to the mounting hole. An annular sealing gasket 192 is arranged on the periphery of the pressure plate 19. The mounting cover 191 is connected to the rear end cover 1213 by bolts and squeezes the annular sealing gasket 192 to form a seal. The wiring harness of the rotary transformer 18 is squeezed and sealed with the annular sealing gasket 192. An opening is provided on the second accommodating cavity 212 for the wiring harness of the rotary transformer 18 to pass through and then be electrically connected to the control board 25, thereby ensuring the sealing and signal transmission of the rotary transformer 18.

[0061] In some alternative embodiments: See Figures 1 to 7 As shown, an embodiment of the present application provides a motor and electronic control integrated system, in which a temperature sensor 193 for measuring the stator 1222 is provided in the motor 12 of the motor and electronic control integrated system. The temperature sensor 193 passes through the rear end cover 1213 and is electrically connected to the control board 25. The temperature sensor 193 and the rear end cover 1213 are sealed and connected via a sealing sleeve 194.

[0062] The motor 12 of the embodiment of the present application is provided with a temperature sensor 193 for measuring the temperature of the stator 1222. The temperature sensor 193 passes through the rear end cover 1213 and is electrically connected to the control board 25. The temperature sensor 193 and the rear end cover 1213 are sealed by a sealing sleeve 194. The sealing sleeve 194 ensures the sealing performance and can prevent water vapor from entering the interior of the motor 12. Specifically, the second accommodating cavity 212 is provided with an opening for the wiring harness of the temperature sensor 193 to pass through and then be electrically connected to the control board 25.

[0063] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0064] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0065] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A motor and electronic control integrated system, characterized in that: include: A motor subassembly (10), the motor subassembly (10) comprising an outer shell (11) and a motor (12) located in the outer shell (11), a first water channel (13) being formed between the outer shell (11) and the motor (12); An electric control subassembly (20), the electric control subassembly (20) comprising a rear housing (21) detachably connected to the outer housing (11), an IGBT module (22) electrically connected to the motor (12) and a second water channel (23) for cooling the IGBT module (22) being arranged in the rear housing (21); A heat exchange groove (231) and a sealing plate (232) for sealing the opening of the heat exchange groove (231) are arranged on a side of the rear shell (21) away from the outer shell (11); the heat exchange groove (231) and the sealing plate (232) form the second water channel (23); and a water inlet (233) and a water outlet (234) respectively connected to two ends of the heat exchange groove (231) are arranged on a side of the rear shell (21) close to the outer shell (11); The heat exchange groove (231) comprises an inlet section connected to a water inlet nozzle (233), an outlet section connected to a water outlet nozzle (234), and a middle section connected to the inlet section and the outlet section, wherein evenly distributed flow dividers (235) are arranged in the middle section, and the inlet section and the outlet section gradually shrink and narrow in a direction away from the middle section.

2. The motor and electronic control integrated system according to claim 1, characterized in that: The rear housing (21) has a first accommodating cavity (211) opening toward the outer housing (11); the IGBT module (22) is arranged on a wall surface of the first accommodating cavity (211) away from the outer housing (11); one end of the IGBT module (22) is connected to a three-phase lead-out terminal (1224) of the motor (12) via an AC terminal (14); and the other end of the IGBT module (22) is connected to a bus capacitor (15).

3. The motor and electronic control integrated system according to claim 1, characterized in that: The first water channel (13) and the second water channel (23) are interconnected, the outer shell (11) and the rear shell (21) are sealed and connected via an annular sealing ring (16), and the connection between the first water channel (13) and the second water channel (23) is located on the periphery of the annular sealing ring (16).

4. The motor and electronic control integrated system according to claim 1, characterized in that: The motor (12) comprises a motor housing (121) and a driving assembly (122) located in the motor housing (121); the motor housing (121) comprises a front end cover (1211), a cylinder (1212) and a rear end cover (1213); the rear end cover (1213) and the cylinder (1212) are integrally formed; a spiral water groove (131) is arranged on the outer wall of the cylinder (1212); the spiral water groove (131) and the outer shell (11) form the first water channel (13); and the outer shell (11) is provided with a water inlet (132) and a water outlet (133) connected to the spiral water groove (131).

5. The motor and electronic control integrated system according to claim 4, characterized in that: The driving assembly (122) comprises a motor shaft (1221), a stator (1222) and a rotor (1223); the two ends of the motor shaft (1221) are respectively connected to the front end cover (1211) and the rear end cover (1213) in a coaxial rotation manner; the motor shaft (1221) is sequentially sleeved with the rotor (1223) and the stator (1222) from the inside to the outside; the winding end of the stator (1222) close to the outer shell (11) is provided with a three-phase lead-out terminal (1224) that passes through the rear end cover (1213); the rear end cover (1213) and the three-phase lead-out terminal (1224) are sealed by a sealing block (17).

6. The motor and electronic control integrated system according to claim 5, characterized in that: The electric control subassembly (20) further comprises a drive board (24) and a control board (25) electrically connected to the drive board (24); the drive board (24) is connected to a side of the IGBT module (22) away from the second water channel (23); a second accommodating cavity (212) and a cover plate (26) for closing the second accommodating cavity (212) are provided on a side of the rear housing (21) away from the outer housing (11); and the control board (25) is located in the second accommodating cavity (212).

7. The motor and electronic control integrated system according to claim 6, characterized in that: The motor shaft (1221) is provided with a rotary transformer (18) electrically connected to the control board (25); the rear end cover (1213) is provided with a mounting hole for accommodating the rotary transformer (18) and a pressure plate (19) for fixing the rotary transformer (18) in the mounting hole; a mounting cover (191) and an annular sealing gasket (192) connecting the mounting cover (191) and the rear end cover (1213) are provided in the mounting hole; the annular sealing gasket (192) surrounds the pressure plate (19) and is sealed and connected to a wiring harness of the rotary transformer (18).

8. The motor and electronic control integrated system according to claim 6, characterized in that: A temperature sensor (193) for measuring the temperature of the stator (1222) is arranged in the motor (12); the temperature sensor (193) passes through the rear end cover (1213) and is electrically connected to the control board (25); the temperature sensor (193) and the rear end cover (1213) are sealed via a sealing sleeve (194).

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