Disc-type dual-motor system

Abstract

The invention discloses a disc-type dual-motor system, and the system comprises a motor liquid cooling part which comprises a first liquid cooling protection part, a second liquid cooling protection part and a liquid cooling water collection part, and the second liquid cooling protection part is connected to the first liquid cooling protection part; the liquid cooling water collecting piece is arranged on the first liquid cooling protection piece and the second liquid cooling protection piece and continuously provides cooling liquid for the first liquid cooling protection piece and the second liquid cooling protection piece at the same time; the dual-motor power part comprises a torque output part, a first motor power part, a second motor power part and a control wiring part, the torque output part is rotationally arranged in the first liquid cooling protection part and the second liquid cooling protection part, and the first motor power part and the second motor power part are arranged in the first liquid cooling protection part and the second liquid cooling protection part correspondingly; torque is provided to the connected torque output. The motor is reasonable in structural design, compact and reasonable in internal structural design, small in size, high in output torque stability, moderate in machining difficulty, short in heat dissipation waterway and high in heat dissipation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of disc motors, and more particularly to a disc type dual motor system. Background Art

[0002] Disc motor is a special type of motor, which is based on a disc structure and is usually classified as a permanent magnet motor or an induction motor. Disc motor has the characteristics of high efficiency, compactness and wide application areas, and is suitable for occasions with strict space requirements or high efficiency energy conversion.

[0003] Existing disc motor cooling is mainly based on water cooling, and most of them use cooling water entering from one end cover and then flowing through the other end cover before being discharged. However, its scope of use is limited to disc motors with relatively low heat dissipation coefficients, and it is difficult to meet the needs of disc motors with high power output. Existing high-power disc dual motors are extremely rare in use, mainly because of their complex structural design, high difficulty in processing technology, difficulty in further reducing their size, and too long heat dissipation water path, which cannot meet the rapid heat dissipation requirements of disc dual motor systems. Summary of the invention

[0004] In order to overcome the above defects, the present invention provides a disc-type dual-motor system, which specifically adopts the following technical solutions:

[0005] A disc-type dual-motor system, comprising:

[0006] A motor liquid cooling member, the motor liquid cooling member comprises a first liquid cooling shield, a second liquid cooling shield and a liquid cooling water collecting member, the second liquid cooling shield is connected to the first liquid cooling shield, and together provide support and water cooling heat dissipation; the liquid cooling water collecting member is on the first liquid cooling shield and the second liquid cooling shield, and continuously provides cooling liquid to the first liquid cooling shield and the second liquid cooling shield at the same time;

[0007] A dual-motor power component is arranged on the first liquid-cooled shield and the second liquid-cooled shield, and the dual-motor power component includes a torque output component, a first motor power component, a second motor power component and a control wiring component. The torque output component is rotatably arranged in the first liquid-cooled shield and the second liquid-cooled shield. The first motor power component and the second motor power component are respectively in the first liquid-cooled shield and the second liquid-cooled shield, providing torque to the connected torque output component; and the first motor power component dissipates heat outwards through the first liquid-cooled shield, and the second motor power component dissipates heat outwards through the second liquid-cooled shield.

[0008] Preferably, the first liquid-cooling shield comprises a front-end liquid-cooling shield and a first intermediate liquid-cooling shield, and the first intermediate liquid-cooling shield is arranged on the front-end liquid-cooling shield to provide support and heat dissipation for the first motor power component inside.

[0009] Preferably, the front end liquid cooling protective member includes a front end cover plate and a first water channel cover plate, the first water channel cover plate is sealingly covered on the front end cover plate, and the first cooling water channel arranged on the front end cover plate is used for water cooling and heat dissipation of the first water channel cover plate and the front end cover plate.

[0010] Preferably, the first intermediate liquid-cooling protective member includes a first intermediate cover plate and a second water channel cover plate, and the second water channel cover plate is sealed and covered on the first intermediate cover plate; the second cooling water channel arranged on the first intermediate cover plate is used for water cooling and heat dissipation of the second water channel cover plate and the first intermediate cover plate.

[0011] Preferably, the second liquid-cooling shield includes a second intermediate liquid-cooling shield and a rear end liquid-cooling shield, and the rear end liquid-cooling shield is arranged on the second intermediate liquid-cooling shield to provide support and heat dissipation for the second motor power component arranged inside; the second intermediate liquid-cooling shield is connected to the first intermediate liquid-cooling shield to connect the first motor power component and the second motor power component in series to provide power to the connected torque output component in a coordinated manner.

[0012] Preferably, the liquid-cooled water collecting component includes a water collecting connecting component and a water collecting component, the water collecting connecting component is connected to the first liquid-cooling shield and the second liquid-cooling shield, and the coolant is simultaneously transported to the first liquid-cooling shield and the second liquid-cooling shield through the connected water collecting component; the water collecting connecting component includes a first water collecting connecting vessel, a second water collecting connecting vessel and a third water collecting connecting vessel, the first water collecting connecting vessel is on the first liquid-cooling shield, and the first water collecting connecting vessel is connected to both ends of the first cooling water channel; the second water collecting connecting vessel is respectively connected to both ends of the second cooling water channel and both ends of the third cooling water channel on the second intermediate liquid-cooling shield, and the third cooling water channel is connected in parallel with the second cooling water channel; the third water collecting connecting vessel is connected to both ends of the fourth cooling water channel on the rear end liquid-cooling shield.

[0013] Preferably, the torque output member comprises a rotating shaft, and the rotating shaft is rotatably disposed in the first liquid-cooling shield and the second liquid-cooling shield.

[0014] Preferably, the first motor power component includes a first stator assembly, a second stator assembly and a first rotor disk assembly, the first stator assembly is fit-assembled on the first waterway cover plate and the front end cover plate, the second stator assembly is fit-assembled on the second waterway cover plate and the first middle cover plate, and the first rotor disk assembly is mounted on the rotating shaft between the first stator assembly and the second stator assembly.

[0015] Preferably, the second motor power component includes a third stator assembly, a fourth stator assembly and a second rotor disk assembly, the third stator assembly is fit-assembled on the second intermediate liquid-cooling shield, the fourth stator assembly is fit-assembled on the rear end liquid-cooling shield, and the second rotor disk assembly is arranged on the rotating shaft between the third stator assembly and the fourth stator assembly.

[0016] Preferably, the control wiring member includes a wiring socket and a high-voltage wiring harness, and the high-voltage wiring harness is electrically connected to the first stator assembly, the second stator assembly, the third stator assembly and the fourth stator assembly through the multiple wiring sockets connected thereto.

[0017] The present invention has at least the following beneficial effects:

[0018] 1) The disc-type dual-motor system of the present invention has a reasonable structural design, a compact and reasonable internal structure design, a small volume, a high output torque stability, a moderate processing difficulty, a short heat dissipation water path and a high heat dissipation efficiency;

[0019] 2) The disc-type dual-motor system of the present invention is provided with a first liquid-cooling protective member, a second liquid-cooling protective member and a liquid-cooling water collecting member, and the cooling water channels of the first liquid-cooling protective member and the second liquid-cooling protective member are connected to the liquid-cooling water collecting member in a parallel manner; the first stator assembly and the second stator assembly of the dual-motor power member are fitted and assembled on the water channel cover plate of the first liquid-cooling protective member, and the third stator assembly and the fourth stator assembly of the dual-motor power member are fitted and assembled on the water channel cover plate of the second liquid-cooling protective member; by conveying cooling water to the liquid-cooling water collecting member, the first stator assembly, the second stator assembly, the third stator assembly and the fourth stator assembly are separately water-cooled at the same time, which significantly improves the heat dissipation efficiency, structural compactness, output torque stability and scope of application, and significantly reduces the heat dissipation water channel and volume.

[0020] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of the disc-type dual-motor system of the present invention;

[0022] Figure 2This is a front view of the disc-type dual-motor system of the present invention;

[0023] Figure 3 This is a front view of the rear end of the disc-type dual-motor system of the present invention;

[0024] Figure 4 It is a schematic diagram of the front-end three-dimensional structure of the disc-type dual-motor system of the present invention;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the rear end of the disc-type dual-motor system of the present invention;

[0026] Figure 6 A schematic diagram of the connection relationship of the front end liquid cooling protection member in the disc type dual motor system of the present invention;

[0027] Figure 7 The disc-type dual-motor system of the present invention Figure 1 Schematic diagram of the three-dimensional structure of the cross section in the AA direction;

[0028] Figure 8 It is a schematic diagram of the longitudinal cross-section of the three-dimensional structure of the motor liquid cooling component in the disc-type dual-motor system of the present invention;

[0029] Fig. 9 The disc-type dual-motor system of the present invention Figure 8 A partial enlarged view of middle C;

[0030] Fig.10 The disc-type dual-motor system of the present invention Figure 2 Main section view in the middle BB direction;

[0031] Fig.11 It is an exploded view of the liquid cooling water collecting part in the disc type dual motor system of the present invention;

[0032] Fig.12 It is an exploded view of the disc-type dual-motor system of the present invention.

[0033] Among them: 1-front cover plate, 2-first water channel cover plate, 3-first water inlet water channel, 4-first water outlet water channel, 5-first cooling water channel, 6-first heat sink, 7-first arc protrusion, 8-first middle cover plate, 9-second water channel cover plate, 10-second middle cover plate, 11-third water channel cover plate, 12-rear cover plate, 13-fourth water channel cover plate, 14-first water collecting connector, 15-second water collecting connector, 16-third water collecting connector, 17-first water inlet relay through hole, 18-first water outlet relay through hole, 19-first sealing gasket, 20-second sealing gasket, 21-third sealing gasket Gasket, 22-water collector, 23-water inlet pipe, 24-water outlet pipe, 25-water inlet collecting hole, 26-water outlet collecting hole, 27-first sealing plug, 28-second sealing plug, 29-exhaust valve, 30-front bearing, 31-rear bearing, 32-rotating shaft, 33-bearing pressure plate, 34-rotating transformer protection cover, 35-signal line sealing cover, 36-first stator assembly, 37-second stator assembly, 38-first rotor disk assembly, 39-third stator assembly, 40-fourth stator assembly, 41-second rotor disk assembly, 42-terminal seat, 43-high-voltage wiring harness, 44-wiring harness transition plate. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be described in detail below by way of embodiments with reference to the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0035] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that there can be two relationships. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship.

[0036] according to Figure 1-Figure 12 As shown, a disc-type dual-motor system includes a motor liquid cooling member and a dual-motor power member, wherein the dual-motor power member is arranged on the motor liquid cooling member. The motor liquid cooling member includes a first liquid cooling shield, a second liquid cooling shield, and a liquid cooling water collecting member, wherein the first liquid cooling shield is connected to the second liquid cooling shield, and the liquid cooling water collecting member is arranged on the first liquid cooling shield and the second liquid cooling shield.

[0037] The first liquid-cooling shield comprises a front-end liquid-cooling shield and a first intermediate liquid-cooling shield, and the first intermediate liquid-cooling shield is arranged on the front-end liquid-cooling shield. The front-end liquid-cooling shield comprises a front-end cover plate 1 and a first waterway cover plate 2, and the first waterway cover plate 2 is arranged on the front-end cover plate 1. The front-end cover plate 1 is cast with a first water inlet waterway 3, a first water outlet waterway 4 and a first cooling waterway 5 on the inner side of the front-end cover plate 1 through a casting process, and the two ends of the first cooling waterway 5 are respectively connected with one end of the first water inlet waterway 3 and the first water outlet waterway 4.

[0038] Furthermore, the first cooling water channel 5 is distributed in a C-shaped reciprocating manner on the front end cover plate 1 to increase the flow path of the coolant flowing through the first cooling water channel 5 and improve the heat dissipation efficiency. A corresponding first heat sink 6 is cast on the inner side surface of the first water channel cover plate 2. The first water channel cover plate 2 is sealed and covered on the inner side surface of the front end cover plate 1, and the first water inlet water channel 3, the first water outlet water channel 4 and the first cooling water channel 5 form a circumferential sealed water flow channel. At the same time, the first heat sink 6 is inserted into the first cooling water channel 5 to form a staggered structure, and the heat dissipation efficiency is improved by increasing the contact area between the first water channel cover plate 2 and the cooling water. As an option, the sealing cover between the front end cover plate 1 and the first water channel cover plate 2 is combined into one by friction welding technology.

[0039] Furthermore, a first arc protrusion 7 is provided on the inner side surface of the front end cover plate 1, and there are four first arc protrusions 7, and the four first arc protrusions 7 are evenly distributed around the front end cover plate 1. A first arc depression is provided on the first waterway cover plate 2, and there are four first arc depressions, and the four first arc depressions are evenly distributed around the first waterway cover plate 2, and the four first arc depressions are correspondingly mounted on the four first arc protrusions 7 one by one. It should be noted that due to the large diameter of its high-power disc-type dual motor, the water pressure in the inner center will be higher than the water pressure in other places if the joints are welded separately, so four concave-convex structures are exposed in the middle position of the front end cover plate 1 and the first waterway cover plate 2. If the four concave-convex structures are turned into one, the deformation of the end plate will increase, which will easily increase the difficulty of welding when using friction welding technology. Therefore, in this embodiment, a concave-convex structure with four arcs is set.

[0040] The first intermediate liquid cooling protection member includes a first intermediate cover plate 8 and a second waterway cover plate 9, and the second waterway cover plate 9 is arranged on the first intermediate cover plate 8. The first intermediate cover plate 8 is cast with a second water inlet waterway, a second water outlet waterway and a second cooling waterway on the inner side of the first intermediate cover plate 8 by a casting process, and the two ends of the second cooling waterway are respectively connected with one end of the second water inlet waterway and the second water outlet waterway. Further, the second cooling waterway is distributed on the first intermediate cover plate 8 in a C-shaped reciprocating manner to increase the flow stroke of the coolant flowing through the second cooling waterway and improve the heat dissipation efficiency. A corresponding second heat sink is cast on the inner side of the second waterway cover plate 9. The second waterway cover plate 9 is sealed and covered on the inner side of the first intermediate cover plate 8, and forms a circumferential sealed water flow channel for the second water inlet waterway, the second water outlet waterway and the second cooling waterway. At the same time, the second heat sink is inserted into the second cooling waterway to form a staggered structure, and the heat dissipation efficiency is improved by increasing the contact area between the second waterway cover plate 9 and the cooling water. As an option, the sealing cover between the first middle cover plate 8 and the second water channel cover plate 9 is combined into one by friction welding technology.

[0041] Further, the inner side surface of the first intermediate cover plate 8 is provided with a second arc protrusion, and there are four second arc protrusions, and the four second arc protrusions are evenly distributed around the first intermediate cover plate 8. The second waterway cover plate 9 is provided with a second arc depression, and there are four second arc depressions, and the four second arc depressions are evenly distributed around the second waterway cover plate 9, and the four second arc depressions are correspondingly mounted on the four second arc protrusions one by one.

[0042] The second liquid-cooling shield includes a second intermediate liquid-cooling shield and a rear end liquid-cooling shield, the rear end liquid-cooling shield is arranged on the second intermediate liquid-cooling shield, and the second intermediate liquid-cooling shield is fixedly connected to the first intermediate liquid-cooling shield. The second intermediate liquid-cooling shield includes a second intermediate cover plate 10 and a third waterway cover plate 11, the third waterway cover plate 11 is arranged on the second intermediate cover plate 10. The second intermediate cover plate 10 is cast with a third water inlet waterway, a third water outlet waterway and a third cooling waterway on the inner side of the second intermediate cover plate 10 through a casting process, and the two ends of the third cooling waterway are respectively connected with one end of the third water inlet waterway and the third water outlet waterway. Further, the third cooling waterway is distributed on the second intermediate cover plate 10 in a C-shaped reciprocating manner to increase the flow stroke of the coolant flowing through the third cooling waterway and improve the heat dissipation efficiency. A corresponding third heat sink is cast on the inner side of the third waterway cover plate 11. The third waterway cover plate 11 is sealed and covered on the inner side of the second intermediate cover plate 10, and the third water inlet waterway, the third water outlet waterway and the third cooling waterway form a circumferential sealed water flow channel, and the third heat sink is inserted into the third cooling waterway to form a staggered structure, which increases the contact area between the third waterway cover plate 11 and the cooling water, thereby improving the heat dissipation efficiency. As an option, the sealing cover between the second intermediate cover plate 10 and the third waterway cover plate 11 is combined into one by friction welding technology.

[0043] Furthermore, a third arc protrusion is provided on the inner side surface of the second middle cover plate 10, and there are four third arc protrusions, which are evenly distributed around the circumference of the second middle cover plate 10. A third arc depression is provided on the third waterway cover plate 11, and there are four third arc depressions, which are evenly distributed around the circumference of the third waterway cover plate 11, and the four third arc depressions are correspondingly mounted on the four third arc protrusions one by one.

[0044] The rear end liquid cooling protection member includes a rear end cover plate 12 and a fourth water channel cover plate 13, and the fourth water channel cover plate 13 is arranged on the rear end cover plate 12. The rear end cover plate 12 is cast with a fourth water inlet water channel, a fourth water outlet water channel and a fourth cooling water channel on the inner side of the rear end cover plate 12 through a casting process, and the two ends of the fourth cooling water channel are respectively connected with the fourth water inlet water channel and one end of the fourth water outlet water channel. Furthermore, the fourth cooling water channel is distributed on the rear end cover plate 12 in a C-shaped reciprocating manner to increase the flow range of the coolant flowing through the fourth cooling water channel and improve the heat dissipation efficiency. A corresponding fourth heat sink is cast on the inner side of the fourth water channel cover plate 13. The fourth waterway cover plate 13 is sealed and covered on the inner side of the rear end cover plate 12, and the fourth water inlet waterway, the fourth water outlet waterway and the fourth cooling waterway form a circumferential sealed water flow channel, and the fourth heat sink is inserted into the fourth cooling waterway to form a staggered structure, which increases the contact area between the fourth waterway cover plate 13 and the cooling water, thereby improving the heat dissipation efficiency. As an option, the sealing cover between the rear end cover plate 12 and the fourth waterway cover plate 13 is combined into one by friction welding technology.

[0045] Furthermore, a fourth arc protrusion is provided on the inner side surface of the rear end cover plate 12, and there are four fourth arc protrusions, which are evenly distributed around the rear end cover plate 12. A fourth arc depression is provided on the fourth waterway cover plate 13, and there are four fourth arc depressions, which are evenly distributed around the fourth waterway cover plate 13, and the four fourth arc depressions are correspondingly mounted on the four fourth arc protrusions one by one.

[0046] The first liquid-cooling shield and the second liquid-cooling shield are tightly and symmetrically connected through the first intermediate liquid-cooling shield and the second intermediate liquid-cooling shield to realize the series connection of the protective shells of the dual motors, thereby providing support and efficient heat dissipation for the dual-motor power components.

[0047] The liquid-cooled water collecting part includes a water collecting connecting part and a water collecting part, wherein the water collecting connecting part is arranged on the first liquid-cooling shield and the second liquid-cooling shield, and the water collecting part is arranged on the water collecting connecting part. The water collecting connecting part includes a first water collecting connecting part 14, a second water collecting connecting part 15 and a third water collecting connecting part 16, wherein the first water collecting connecting part 14 is arranged on the first liquid-cooling shield, the second water collecting connecting part 15 is arranged on the first liquid-cooling shield and the second liquid-cooling shield, and the third water collecting connecting part 16 is arranged on the second liquid-cooling shield.

[0048] The first water collecting connector 14 is provided with a first water inlet relay through hole 17 and a first water outlet relay through hole 18, one end of the first water collecting connector 14 is fastened to the front end cover plate 1 by a first screw, and a first sealing gasket 19 is provided between the first water collecting connector 14 and the front end cover plate 1, and at the same time, one end of the first water inlet relay through hole 17 and the first water outlet relay through hole 18 are respectively sealed and connected with the other end of the first water inlet waterway 3 and the first water outlet waterway 4. Further, one end of the first water inlet relay through hole 17, one end of the first water outlet relay through hole 18, the other end of the first water inlet waterway 3 and the other end of the first water outlet waterway 4 are all provided with a first convex stop to improve the through-sealing performance.

[0049] The second water collecting communicator 15 is provided with a second water inlet relay through hole, a second water outlet relay through hole, a third water inlet relay through hole and a third water outlet relay through hole. One end of the second water collecting communicator 15 is fastened to the first intermediate cover plate 8 and the second intermediate cover plate 10 by a second screw, and a second sealing gasket 20 is provided between the second water collecting communicator 15 and the first intermediate cover plate 8 and the second intermediate cover plate 10. At the same time, one end of the second water inlet relay through hole and the second water outlet relay through hole are respectively sealed and connected with the other end of the second water inlet waterway and the second water outlet waterway, and one end of the third water inlet relay through hole and the third water outlet relay through hole are respectively sealed and connected with the other end of the third water inlet waterway and the third water outlet waterway. Furthermore, the second water inlet relay through hole, the second water outlet relay through hole, the third water inlet relay through hole, one end of the third water outlet relay through hole, the second water inlet waterway, the second water outlet waterway, the third water inlet waterway, and the other end of the third water outlet waterway are all provided with a second convex stop to improve the through-sealing performance.

[0050] The third water collecting connector 16 is provided with a fourth water inlet relay through hole and a fourth water outlet relay through hole, one end of the third water collecting connector 16 is fastened to the rear end cover plate 12 by a third screw, and a third sealing gasket 21 is provided between the third water collecting connector 16 and the rear end cover plate 12, and at the same time, one end of the fourth water inlet relay through hole and the fourth water outlet relay through hole are sealed and connected with the fourth water inlet waterway and the other end of the fourth water outlet waterway respectively. Further, one end of the fourth water inlet relay through hole, one end of the fourth water outlet relay through hole, the other end of the fourth water inlet waterway and the other end of the fourth water outlet waterway are all provided with a third convex stop to improve the through-sealing performance.

[0051] The water collecting part includes a water collector 22, a water inlet pipe 23 and a water outlet pipe 24. The water collector 22 is arranged on the water collecting connecting part, and the water inlet pipe 23 and the water outlet pipe 24 are both arranged on the water collector 22. The water collector 22 is provided with a water inlet collecting hole 25 and a water outlet collecting hole 26. The opening of the water inlet collecting hole 25 is provided with a first sealing plug 27, and the opening of the water outlet collecting hole 26 is provided with a second sealing plug 28. The water collector 22 is fastened to the first water collector connector 14, the second water collector connector 15 and the third water collector connector 16 by a fourth screw, and the first water collector connector 14, the second water collector connector 15 and the third water collector connector 16 are connected by a fourth gasket, a fifth gasket and a sixth gasket respectively, so that the water inlet collecting hole 25 is sealed and connected with the other end of the first water inlet relay through hole 17, the second water inlet relay through hole, the third water inlet relay through hole and the fourth water inlet relay through hole respectively; the water outlet collecting hole 26 is sealed and connected with the other end of the first water outlet relay through hole 18, the second water outlet relay through hole, the third water outlet relay through hole and the fourth water outlet relay through hole respectively. Further, the water collector 22, the first water collector connector 14, the second water collector connector 15 and the third water collector connector 16 are all provided with a convex stopper on one side of the through connection to improve the through sealing performance. Furthermore, the water collector 22 is provided with an exhaust valve 29 which is in communication with the water outlet and water collecting hole 26 .

[0052] One end of the water inlet pipe 23 is connected to the water inlet collecting hole 25 for inputting cooling water into the water inlet collecting hole 25. One end of the water outlet pipe 24 is connected to the water outlet collecting hole 26 for discharging the cooling water that absorbs heat in the water outlet collecting hole 26.

[0053] The dual motor power component includes a torque output component, a first motor power component, a second motor power component and a control wiring component. The torque output component and the control wiring component are both arranged on the motor liquid cooling component. The first motor power component and the second motor power component are both arranged on the torque output component.

[0054] The torque output member includes a front bearing 30, a rear bearing 31 and a rotating shaft 32. The front bearing 30 is stably embedded in the bearing chamber of the front end cover plate 1 through a bearing pressure plate 33, and the rear bearing 31 is embedded in the bearing chamber of the rear end cover plate 12. The two ends of the rotating shaft 32 are respectively embedded in the front bearing 30 and the rear bearing 31, and are used to output torque to the outside to do work. Furthermore, a rotary transformer protection cover 34 is connected through the outside of the bearing chamber of the rear end cover plate 12, and a signal line sealing cover 35 is provided at the free end of the rotary transformer protection cover 34.

[0055] The first motor power component includes a first stator assembly 36, a second stator assembly 37 and a first rotor disk assembly 38. The first stator assembly 36 is fitted on the outer surface of the first waterway cover plate 2, the second stator assembly 37 is fitted on the outer surface of the second waterway cover plate 9, and the first rotor disk assembly 38 is mounted on the rotating shaft 32 between the first stator assembly 36 and the second stator assembly 37.

[0056] Furthermore, the first stator assembly 36 is fixedly connected to the first waterway cover plate 2 and the front end cover plate 1 through countersunk holes and T-shaped connectors. It should be noted that the heat generated by the first stator assembly 36 is transferred to the cooling water via the first waterway cover plate 2 and the first heat sink 6, and the first heat sink 6 increases the contact area between the first waterway cover plate 2 and the cooling water, thereby improving the heat dissipation efficiency. Specifically, the height of the first heat sink 6 is half the depth of the first cooling water channel 5. As an option, a heat-conducting layer is provided between the first stator assembly 36 and the first waterway cover plate 2, wherein the heat-conducting layer is a heat-conducting silicone grease or a heat-conducting structure to improve the heat dissipation efficiency.

[0057] The connection mode of the second stator assembly 37 with the second waterway cover plate 9 and the first middle cover plate 8 is the same as the connection mode of the first stator assembly 36 with the first waterway cover plate 2 and the front end cover plate 1 .

[0058] The second motor power component includes a third stator assembly 39, a fourth stator assembly 40 and a second rotor disk assembly 41. The third stator assembly 39 is fitted on the outer surface of the third waterway cover plate 11, the fourth stator assembly 40 is fitted on the outer surface of the fourth waterway cover plate 13, and the second rotor disk assembly 41 is arranged on the rotating shaft 32 between the third stator assembly 39 and the fourth stator assembly 40.

[0059] The third stator assembly 39 is connected to the third waterway cover plate 11 and the second middle cover plate 10 in the same manner as the first stator assembly 36 is connected to the first waterway cover plate 2 and the front end cover plate 1. The fourth stator assembly 40 is connected to the fourth waterway cover plate 13 and the rear end cover plate 12 in the same manner as the first stator assembly 36 is connected to the first waterway cover plate 2 and the front end cover plate 1.

[0060] The control wiring member includes a wiring seat 42 and a high-voltage wire harness 43. There are four wiring seats 42, and the four wiring seats 42 are evenly arranged in a wiring compartment formed by the front cover plate 1, the first middle cover plate 8, the second middle cover plate 10 and the rear cover plate 12. And the four wiring seats 42 are electrically connected to the first stator assembly 36, the second stator assembly 37, the third stator assembly 39 and the fourth stator assembly 40 respectively. The high-voltage wire harness 43 is electrically connected to the four wiring seats 42 respectively through the wire harness transition plate 44.

[0061] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A disc-type dual-motor system, characterized in that: include: A motor liquid cooling member, the motor liquid cooling member comprises a first liquid cooling shield, a second liquid cooling shield and a liquid cooling water collecting member, the second liquid cooling shield is connected to the first liquid cooling shield, and together provide support and water cooling heat dissipation; the liquid cooling water collecting member is on the first liquid cooling shield and the second liquid cooling shield, and continuously provides cooling liquid to the first liquid cooling shield and the second liquid cooling shield at the same time; A dual-motor power component is arranged on the first liquid-cooled shield and the second liquid-cooled shield, and the dual-motor power component includes a torque output component, a first motor power component, a second motor power component and a control wiring component. The torque output component is rotatably arranged in the first liquid-cooled shield and the second liquid-cooled shield. The first motor power component and the second motor power component are respectively in the first liquid-cooled shield and the second liquid-cooled shield, providing torque to the connected torque output component; and the first motor power component dissipates heat outwards through the first liquid-cooled shield, and the second motor power component dissipates heat outwards through the second liquid-cooled shield.

2. The disc-type dual-motor system according to claim 1, characterized in that: The first liquid-cooling shield comprises a front-end liquid-cooling shield and a first intermediate liquid-cooling shield. The first intermediate liquid-cooling shield is arranged on the front-end liquid-cooling shield to provide support and heat dissipation for the first motor power component inside.

3. The disc-type dual-motor system according to claim 2, characterized in that: The front end liquid cooling protection member includes a front end cover plate and a first water channel cover plate, wherein the first water channel cover plate is sealingly covered on the front end cover plate, and a first cooling water channel arranged on the front end cover plate is used for water cooling and heat dissipation of the first water channel cover plate and the front end cover plate.

4. The disc-type dual-motor system according to claim 2 or 3, characterized in that: The first intermediate liquid-cooling protective member includes a first intermediate cover plate and a second water channel cover plate, wherein the second water channel cover plate is sealed and covered on the first intermediate cover plate; a second cooling water channel arranged on the first intermediate cover plate is used for water-cooling and dissipating heat of the second water channel cover plate and the first intermediate cover plate.

5. The disc-type dual-motor system according to claim 2 or 3, characterized in that: The second liquid-cooling shield includes a second intermediate liquid-cooling shield and a rear-end liquid-cooling shield, wherein the rear-end liquid-cooling shield is arranged on the second intermediate liquid-cooling shield to provide support and heat dissipation for the second motor power component arranged inside; the second intermediate liquid-cooling shield is connected to the first intermediate liquid-cooling shield to connect the first motor power component and the second motor power component in series to provide power to the connected torque output component in a coordinated manner.

6. The disc-type dual-motor system according to claim 3, characterized in that: The liquid-cooled water collecting component includes a water collecting connecting component and a water collecting component. The water collecting connecting component is connected to the first liquid-cooling shield and the second liquid-cooling shield, and the coolant is simultaneously transported to the first liquid-cooling shield and the second liquid-cooling shield through the connected water collecting component; the water collecting connecting component includes a first water collecting connecting vessel, a second water collecting connecting vessel and a third water collecting connecting vessel. The first water collecting connecting vessel is on the first liquid-cooling shield, and the first water collecting connecting vessel is connected to both ends of the first cooling water channel; the second water collecting connecting vessel is respectively connected to both ends of the second cooling water channel and both ends of the third cooling water channel on the second intermediate liquid-cooling shield, and the third cooling water channel is connected in parallel with the second cooling water channel; the third water collecting connecting vessel is connected to both ends of the fourth cooling water channel on the rear end liquid-cooling shield.

7. The disc-type dual-motor system according to any one of claims 1 to 3, characterized in that: The torque output member includes a rotating shaft, and the rotating shaft is rotatably disposed in the first liquid-cooling shield member and the second liquid-cooling shield member.

8. The disc-type dual-motor system according to claim 7, characterized in that: The first motor power component includes a first stator assembly, a second stator assembly and a first rotor disk assembly. The first stator assembly is fitted on the first waterway cover plate and the front end cover plate, the second stator assembly is fitted on the second waterway cover plate and the first middle cover plate, and the first rotor disk assembly is mounted on the rotating shaft between the first stator assembly and the second stator assembly.

9. The disc-type dual-motor system according to claim 7, characterized in that: The second motor power component includes a third stator assembly, a fourth stator assembly and a second rotor disk assembly. The third stator assembly is fitted on the second intermediate liquid-cooling shield, the fourth stator assembly is fitted on the rear end liquid-cooling shield, and the second rotor disk assembly is arranged on the rotating shaft between the third stator assembly and the fourth stator assembly.

10. The disc-type dual-motor system according to claim 9, characterized in that: The control wiring member includes a wiring seat and a high-voltage wire harness, and the high-voltage wire harness is electrically connected to the first stator assembly, the second stator assembly, the third stator assembly and the fourth stator assembly through the connected multiple wiring seats.

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