CN219477785U - Dual-motor shell assembly and dual motor with same - Google Patents

Abstract

The utility model provides a double-motor shell assembly and a double motor with the same, wherein the double-motor shell assembly is provided with a first motor cavity, a second motor cavity and a controller cavity which are arranged at intervals, the double-motor shell assembly is provided with a liquid inlet, a liquid outlet and a cooling channel communicated between the liquid inlet and the liquid outlet, the cooling channel comprises three cooling sections which are sequentially connected along the flowing direction of cooling liquid, and the three cooling sections are respectively used for cooling the inner wall of the first motor cavity, the inner wall of the second motor cavity and the inner wall of the controller cavity. According to the double-motor shell assembly, the cooling channels are arranged in the double-motor shell assembly, so that the first motor cavity, the second motor cavity and the controller cavity can be cooled, the cooling range of the cooling channels is increased, the cooling efficiency of the cooling channels is improved, the utilization rate of a cooling section is improved, the length of the cooling channels is reduced, the integration level of the double-motor shell assembly is improved, and the manufacturing cost and the manufacturing volume are reduced.

Description

Dual-motor shell assembly and dual motor with same

Technical Field

The utility model relates to the technical field of motors, in particular to a double-motor shell assembly and a double motor with the same.

Background

The bi-motor in current scheme, when cooling for bi-motor, there is the drawback that cooling tube overlength and cooling inefficiency, simultaneously, bi-motor integrated level in the current scheme is not high.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model is based on the provision of a double motor housing assembly which allows the cooling channel length to be reduced.

The utility model also provides a double motor with the double motor shell assembly.

According to an embodiment of the first aspect of the present utility model, the dual-motor housing assembly defines a first motor cavity, a second motor cavity and a controller cavity which are arranged at intervals, the dual-motor housing assembly has a liquid inlet, a liquid outlet and a cooling channel communicated between the liquid inlet and the liquid outlet, the cooling channel comprises three cooling sections sequentially connected along the direction of flow of cooling liquid, and the three cooling sections are respectively used for cooling the inner wall of the first motor cavity, the inner wall of the second motor cavity and the inner wall of the controller cavity.

According to the double-motor shell assembly, the cooling channels are arranged in the double-motor shell assembly, so that the first motor cavity, the second motor cavity and the controller cavity can be cooled, the cooling range of the cooling channels is increased, the cooling efficiency of the cooling channels is improved, the utilization rate of a cooling section is improved, the length of the cooling channels is reduced, the integration level of the double-motor shell assembly is improved, the cost is reduced, and the volume is reduced.

According to some embodiments of the utility model, the three cooling sections are a first flow path section, a second flow path section, and a third flow path section, respectively, and the dual motor housing assembly comprises: the integrated shell is integrally formed and comprises a first cylinder body and a second cylinder body; the first inner shell is annular and cylindrical and is arranged on the radial inner side of the first cylinder, the first flow passage section is defined by cooperation between the outer peripheral wall of the first inner shell and the inner wall surface of the first cylinder, and the first motor cavity is defined by the inner side of the first inner shell; the second inner shell is annular and cylindrical and is arranged on the radial inner side of the second cylinder, the second flow passage section is defined by cooperation between the outer peripheral wall of the second inner shell and the inner wall surface of the second cylinder, and the second motor cavity is defined by the inner side of the second inner shell.

According to some optional embodiments of the present utility model, a first sealing groove is provided at one end of the first inner shell in the axial direction, the first sealing groove is formed on an end face and/or an outer circumferential surface of the one end of the first inner shell and extends in a ring shape along the circumferential direction of the first inner shell, a first sealing ring is provided in the first sealing groove, the first sealing ring is abutted between the first cylinder and the first inner shell, and the other end of the first inner shell in the axial direction is welded with the first cylinder; the axial one end of second inner shell is equipped with the second seal groove, the second seal groove form in the terminal surface and/or the outer peripheral face of one end of second inner shell and follow the circumference of second inner shell extends to annular, be equipped with the second sealing washer in the second seal groove, the second sealing washer butt is in between the second barrel with the second inner shell, the axial other end of second inner shell with second barrel welded connection.

According to some embodiments of the utility model, the first cylinder and the second cylinder are arranged side by side in a first direction, the first direction being perpendicular to an axial direction of the first cylinder, the integrated housing further comprising: the controller shell is connected with the first cylinder body and the second cylinder body and is arranged on one side of the first cylinder body and one side of the second cylinder body in the second direction, the second direction is perpendicular to the first direction and the axial direction of the first cylinder body, and the inner side of the controller shell is used for defining the controller cavity.

According to some alternative embodiments of the present utility model, the controller housing cooperates with the first cylinder and the second cylinder to define the third flow path section, the first cylinder is formed with a first communication hole penetrating the first cylinder in a thickness direction, the second cylinder is formed with a second communication hole penetrating the second cylinder in the thickness direction, and the third flow path section is connected to the first flow path section through the first communication hole and to the second flow path section through the second communication hole.

According to some alternative embodiments of the utility model, a bottom wall of the controller housing facing the first and second cylinders has a fitting opening therethrough, the fitting opening communicating with the third flow passage section, the dual motor housing assembly further comprising: the water channel cover plate is covered at the position of the assembly opening.

According to some alternative embodiments of the utility model, the surface of the water channel cover plate facing the third flow channel section is provided with heat dissipating ribs extending into the third flow channel section, and/or the surface of the integrated shell located in the third flow channel section is provided with heat dissipating ribs.

According to some embodiments of the utility model, the first cylinder has a first communication hole formed therein, the first communication hole penetrating the first cylinder in a thickness direction, and the second cylinder has a second communication hole formed therein, the second communication hole penetrating the second cylinder in the thickness direction, and the dual-motor housing assembly further includes: the waterway plate is connected with the first cylinder body and the second cylinder body and is positioned on the inner side of the controller shell, the third runner section is formed in the waterway plate, and the third runner section is connected with the first runner section through the first communication hole and the second runner section through the second communication hole.

According to some embodiments of the utility model, the integrated housing has a lead hole formed therein, and the lead-out wire of the controller in the controller cavity is adapted to lead out through the lead hole; the integrated shell is provided with a plurality of wire clamping grooves, and the plurality of wire clamping grooves are distributed at intervals along the wiring direction of the outgoing wires of the controller.

According to a second aspect of the present utility model, a dual motor includes: the motor control device comprises a first motor, a second motor and a controller, wherein the controller is used for controlling the first motor and the second motor; according to the double-motor shell assembly of the first aspect of the utility model, the first motor is arranged in the first motor cavity, the second motor is arranged in the second motor cavity, and the controller is arranged in the controller cavity.

According to the double motor, the double motor shell assembly of the first aspect is arranged on the double motor, and the cooling channel is arranged in the double motor shell assembly, so that the first motor cavity, the second motor cavity and the controller cavity can be cooled, the cooling range of the cooling channel is increased, the cooling efficiency of the cooling channel is improved, the utilization rate of a cooling section is improved, the length of the cooling channel is reduced, the integration level of the double motor shell assembly is improved, and the manufacturing cost and the manufacturing volume are reduced.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic view of an angle of a dual motor housing assembly according to a first embodiment of the present utility model;

FIG. 2 is a schematic view of another angle of the dual motor housing assembly shown in FIG. 1;

FIG. 3 is a schematic view of yet another angle of the dual motor housing assembly shown in FIG. 1;

FIG. 4 is a schematic view of yet another angle of the dual motor housing assembly shown in FIG. 1;

FIG. 5 is an exploded view of the dual motor housing assembly shown in FIG. 1;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 7 is a schematic view of an angle of the waterway cover plate and heat dissipating ribs shown in FIG. 5;

FIG. 8 is a schematic view of another angle of the waterway cover plate and heat dissipating ribs shown in FIG. 7;

FIG. 9 is a schematic view of the flow direction of the cooling liquid in the cooling flow passage, wherein the arrows in the drawing indicate the flow direction of the cooling liquid;

FIG. 10 is a schematic view of the weld points of the first inner shell and the first cylinder and the second inner shell and the second cylinder, wherein the point B is the weld point;

FIG. 11 is a schematic illustration of a waterway cover welded to a weld area of a controller shell, with the dotted line being the weld area;

FIG. 12 is an exploded view of a dual motor housing assembly according to a second embodiment of the present utility model;

FIG. 13 is a schematic view of an angle of the dual motor housing assembly shown in FIG. 12;

FIG. 14 is a schematic view of another angle of the dual motor housing assembly shown in FIG. 13;

FIG. 15 is a schematic view of an angle of the waterway plate and base of the dual motor housing assembly;

FIG. 16 is a schematic view of the waterway plate and base of the dual motor housing assembly at another angle;

fig. 17 is a schematic view of the waterway plate shown in fig. 16;

fig. 18 is a schematic view showing the flow direction of the coolant in the third flow path section, and the arrows in the drawing indicate the flow direction of the coolant.

Reference numerals:

100. a dual motor housing assembly;

110. a first motor cavity; 120. a second motor cavity; 130. a controller cavity; 140. a liquid inlet; 150. a liquid outlet; 160. a cooling channel; 161. a first flow-through section; 162. a second circulation segment; 163. a third flow-through section;

10. an integrated shell; 11. a first cylinder; 111. a first communication hole; 12. a second cylinder; 121. a second communication hole; 13. a lead hole; 14. wire clamping groove;

20. a first inner housing; 21. a first seal groove; 22. a first seal ring;

30. a second inner case; 31. a second seal groove; 32. a second seal ring;

40. a controller housing;

50. a waterway cover plate;

60. radiating ribs;

70. a waterway plate; 71. an upper cover plate; 72. a base;

80. and (5) a bolt.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

A dual motor housing assembly 100 according to an embodiment of the present utility model is described below with reference to fig. 1-18.

Referring to fig. 1, 2, 3 and 4, according to the dual motor housing assembly 100 of the first aspect of the present utility model, the dual motor housing assembly 100 defines a first motor chamber 110, a second motor chamber 120 and a controller chamber 130 which are arranged at intervals, the dual motor housing assembly 100 has a liquid inlet 140, a liquid outlet 150 and a cooling passage 160 communicating between the liquid inlet 140 and the liquid outlet 150, the cooling passage 160 includes three cooling sections connected in sequence in a direction of flow of the cooling liquid, and the three cooling sections are used for cooling an inner wall of the first motor chamber 110, an inner wall of the second motor chamber 120 and an inner wall of the controller chamber 130, respectively.

For example, as shown in fig. 1 and 4, the first motor chamber 110 and the second motor chamber 120 are arranged side by side in the left-right direction at the lower side of the controller, the first motor chamber 110 is arranged at the right side of the second motor chamber 120, the liquid inlet 140 is arranged in the left-right direction at the right side of the first motor chamber 110, and the liquid outlet 150 is arranged in the up-down direction at the upper side of the second motor chamber 120. Preferably, the first motor cavity 110, the second motor cavity 120 and the controller cavity 130 are die-cast and made of aluminum alloy, so that the processing is convenient and the strength can be ensured.

When cooling the inner walls of the first motor chamber 110, the second motor chamber 120 and the inner wall of the controller chamber 130, the cooling liquid flows from the liquid inlet 140 to the cooling channel 160, the cooling channel 160 has three cooling sections, the cooling liquid flows from the liquid inlet 140 to the cooling section for cooling the first motor chamber 110, then flows to the cooling section for cooling the controller chamber 130, then flows to the cooling section for cooling the second motor chamber 120, and finally flows to the liquid outlet 150, and at this time, the cooling of the inner walls of the first motor chamber 110, the second motor chamber 120 and the inner wall of the controller chamber 130 is completed.

According to the double-motor housing assembly 100, the cooling channel 160 is arranged in the double-motor housing assembly 100, so that the first motor cavity 110, the second motor cavity 120 and the controller cavity 130 can be cooled, compared with the scheme that only the first motor cavity 110 and the second motor cavity 120 can be cooled but the controller cavity 130 cannot be cooled in the prior art, the cooling range of the cooling channel 160 can be increased, the cooling efficiency of the cooling channel 160 can be improved, the utilization rate of a cooling section can be improved, the length of the cooling channel 160 can be reduced, the integration level of the double-motor housing assembly 100 can be improved, and the cooling channel 160 is arranged in the double-motor housing assembly 100 without arranging an external water pipe, so that the manufacturing cost and the manufacturing volume can be reduced.

According to the double-motor housing assembly 100 of the embodiment of the utility model, the cooling channel 160 is arranged in the double-motor housing assembly 100, so that the first motor cavity 110, the second motor cavity 120 and the controller cavity 130 can be cooled, the cooling range of the cooling channel 160 is increased, the cooling efficiency of the cooling channel 160 is improved, the utilization rate of a cooling section is improved, the length of the cooling channel 160 is reduced, the integration level of the double-motor housing assembly 100 is improved, and the manufacturing cost and the volume are reduced.

According to some embodiments of the present utility model, referring to fig. 1, 2, 3 and 4, three cooling sections are a first flow path section 161, a second flow path section 162 and a third flow path section 163, respectively, the dual motor housing assembly 100 includes: the casing 10, the first inner casing 20 and the second inner casing 30 are integrated. The integrated housing 10 includes a first cylinder 11 and a second cylinder 12; the first inner shell 20 is annular and cylindrical and is arranged on the radial inner side of the first cylinder 11, a first flow passage section 161 is defined between the outer peripheral wall of the first inner shell 20 and the inner wall surface of the first cylinder 11 in a matched manner, and a first motor cavity 110 is defined on the inner side of the first inner shell 20; the second inner casing 30 is annular and cylindrical and is disposed radially inward of the second cylinder 12, and a second flow path section 162 is defined between the outer peripheral wall of the second inner casing 30 and the inner wall surface of the second cylinder 12, and a second motor chamber 120 is defined inside the second inner casing 30.

The first flow channel section 161 defined by the first inner shell 20 and the first cylinder 11 in a matched manner can reduce the processing steps of the double-motor shell assembly 100 and improve the processing efficiency, and meanwhile, the first flow channel section 161 is formed between the first inner shell 20 and the first cylinder 11, so that the space of the double-motor shell assembly 100 is not occupied, and the volume of the double-motor shell assembly 100 is reduced; the second inner shell 30 and the second cylinder 12 are matched to define the second flow passage section 162, so that the processing steps of the double-motor shell assembly 100 can be reduced, the processing efficiency is improved, and meanwhile, the second flow passage section 162 is formed between the second inner shell 30 and the second cylinder 12, so that the space of the double-motor shell assembly 100 is not occupied, and the volume of the double-motor shell assembly 100 is reduced; by providing the integrated housing 10, the first inner housing 20 and the second inner housing 30 on the dual motor housing assembly 100, the first inner housing 20 and the second inner housing 30 are conveniently mounted on the integrated housing 10 in a matched manner, thereby improving the integration level of the dual motor housing assembly 100.

For example, as shown in fig. 1 and 4, the first flow path section 161 is spirally extended from one end in the axial direction of the first inner casing 20 to the other end in the circumferential direction of the first inner casing 20, whereby the first motor chamber 110 can be cooled more preferably, the second flow path section 162 is spirally extended from one end in the axial direction of the second inner casing 30 to the other end in the circumferential direction of the second inner casing 30, whereby the second motor chamber 120 can be cooled more preferably, the third flow path section 163 is arranged at the bottom of the controller chamber 130, the right side of the third flow path section 163 communicates with the first flow path section 161, and the left side of the third flow path section 163 communicates with the second flow path section 162, whereby the cooling passages 160 can be connected in series.

According to some alternative embodiments of the present utility model, referring to fig. 4 and 10, one end of the first inner case 20 in the axial direction (front-rear direction as shown in fig. 4) is provided with a first sealing groove 21, the first sealing groove 21 is formed at an end surface and/or an outer circumferential surface of one end of the first inner case 20, and the first sealing groove 21 extends in a ring shape along the circumferential direction of the first inner case 20, that is, the first sealing groove 21 may be formed at an end surface of one end of the first inner case 20, the first sealing groove 21 may also be formed at an outer circumferential surface of one end of the first inner case 20, the first sealing groove 21 may also be formed at an end surface and an outer circumferential surface of one end of the first inner case 20, a first sealing ring 22 is provided in the first sealing groove 21, the first sealing ring 22 is abutted between the first cylinder 11 and the first inner case 20, and the other end of the first inner case 20 in the axial direction (front-rear direction as shown in fig. 4) is welded to the first cylinder 11; the second inner case 30 has a second seal groove 31 at one axial end, the second seal groove 31 is formed on an end surface and/or an outer circumferential surface of one end of the second inner case 30, the second seal groove 31 extends in a ring shape along a circumferential direction of the second inner case 30, that is, the second seal groove 31 may be formed on an end surface of one end of the second inner case 30, the second seal groove 31 may also be formed on an outer circumferential surface of one end of the second inner case 30, the second seal groove 31 may also be formed on an end surface and an outer circumferential surface of one end of the second inner case 30, a second seal ring 32 is provided in the second seal groove 31, the second seal ring 32 abuts between the second cylinder 12 and the second inner case 30, and the other axial end (front-rear direction as shown in fig. 4) of the second inner case 30 is welded to the second cylinder 12.

By providing the first seal groove 21 in the first inner case 20 and providing the first seal ring 22 in the first seal groove 21, the sealability between the first cylinder 11 and the first inner case 20 can be ensured, so that the leakage of the coolant into the inside of the first inner case 20 can be prevented; by welding one axial end of the first inner casing 20 with the first cylinder 11, the connection stability and the tightness of the first inner casing 20 with the first cylinder 11 can be ensured, and the first inner casing 20 is prevented from being separated from the first cylinder 11; by providing the second seal groove 31 in the second inner case 30 and providing the second seal ring 32 in the second seal groove 31, sealability between the second cylinder 12 and the second inner case 30 can be ensured, so that leakage of the cooling liquid into the inside of the second inner case 30 can be prevented; by welding one axial end of the second inner case 30 with the second cylinder 12, the connection stability of the second inner case 30 with the second cylinder 12 can be ensured, preventing the second inner case 30 from being separated from the second cylinder 12.

For example, as shown in fig. 10, the first inner shell 20 is connected to the first cylinder 11 in the following manner: the top is integrated after friction stir welding, and the bottom is sealed radially and end face by two O-shaped rings; the two are combined to form a first channel section 161 in the circumferential direction, and the second inner shell 30 and the second cylinder 12 are connected in the same manner to form a second channel section 162.

According to some embodiments of the present utility model, referring to fig. 1, 2, 3 and 4, the first cylinder 11 and the second cylinder 12 are arranged side by side in a first direction (a left-right direction as viewed in fig. 4) perpendicular to an axial direction of the first cylinder 11 (a front-rear direction as viewed in fig. 4), the integrated housing 10 may further include: and a controller case 40 connected to the first and second cylinder bodies 11 and 12 and disposed at one side (e.g., upper side) of the first and second cylinder bodies 11 and 12 in a second direction (up-down direction as shown in fig. 4), the second direction (up-down direction as shown in fig. 4) being perpendicular to the first direction (left-right direction as shown in fig. 4) and an axial direction (front-rear direction as shown in fig. 4) of the first cylinder body 11, the controller case 40 being defined at an inner side thereof with a controller chamber 130. By arranging the first cylinder 11 and the second cylinder 12 side by side in the first direction, the first inner shell 20 and the second inner shell 30 are not affected each other during installation, the installation is convenient, and the installation efficiency is improved; by arranging the controller housing 40 on one side of the first cylinder 11 and the second cylinder 12 in the second direction, the distance between the controller housing 40 and the first cylinder 11 and the second cylinder 12 is reduced, the structure is compact, a plurality of runner segments are convenient to directly connect, and the cooling efficiency is improved.

According to some alternative embodiments of the present utility model, referring to fig. 2, 4, 5 and 9, the controller housing 40 defines a third flow path section 163 in cooperation with the first cylinder 11 and the second cylinder 12, the first cylinder 11 is formed with a first communication hole 111 penetrating the first cylinder 11 in a thickness direction, the second cylinder 12 is formed with a second communication hole 121 penetrating the second cylinder 12 in the thickness direction of the second cylinder 12, the third flow path section 163 is connected to the first flow path section 161 through the first communication hole 111, and the third flow path section 163 is connected to the second flow path section 162 through the second communication hole 121. Thus, the first flow channel section 161 and the second flow channel section 162 can be connected in series through the third flow channel section 163, so that the cooling of the first inner shell 20, the second inner shell 30 and the controller can be realized, meanwhile, the first communication hole 111 and the second communication hole 121 can ensure that the cooling liquid stably flows in the first flow channel section 161, the second flow channel section 162 and the third flow channel section 163, the processing technology of the first communication hole 111 and the second communication hole 121 is simple, and the processing cost can be saved.

According to some alternative embodiments of the present utility model, referring to fig. 4, 5 and 7, the bottom wall of the side of the controller housing 40 facing the first cylinder 11 and the second cylinder 12 has a fitting opening penetrating the controller housing 40, the fitting opening communicating with the third flow passage section 163, and the dual motor housing assembly 100 may further include: the water channel cover plate 50, the water channel cover plate 50 covers at the position of the assembling opening. By providing the assembly port, the internal components of the controller housing 40 can be conveniently maintained and cleaned; by providing the waterway cover 50, outflow of coolant from the third channel segment 163 may be prevented from affecting the internal components of the controller cavity 130, while dirt may be prevented from entering the third channel segment 163.

For example, as shown in fig. 5, the waterway cover 50 is sealed to the bottom of the controller case 40 by welding, so that the sealing between the waterway cover 50 and the controller case 40 can be ensured. Preferably, the water channel cover plate 50 is made of aluminum alloy, so that the strength and the heat conducting performance of the water channel cover plate 50 can be ensured.

According to some alternative embodiments of the present utility model, referring to fig. 5 and 7, the surface of the waterway cover 50 facing the third channel segment 163 is provided with heat dissipating ribs 60 extending into the third channel segment 163. The heat dissipating ribs 60 can increase the heat dissipating area and improve the heat dissipating effect on the electrical components inside the controller cavity 130.

For example, as shown in fig. 5 and 7, the heat radiation ribs 60 have a structure having different lengths in the up-down direction inside the controller according to the surface height of the third flow path section 163, so that the heat radiation area can be increased, and when the cooling liquid flows through the third flow path section 163, the heat radiation ribs 60 are immersed in the cooling liquid, so that the heat radiation effect can be ensured. Preferably, the heat dissipating bead 60 may be: rectangular columnar, circular columnar or triangular columnar and the like, so that the heat dissipation area of the heat dissipation ribs 60 can be ensured, the distance between the heat dissipation ribs 60 can be adjusted, and the heat dissipation effect can be further ensured.

According to some alternative embodiments of the present utility model, referring to fig. 12, the surface of the integrated housing 10 that is located within the third flow path segment 163 is provided with heat dissipating ribs 60. Thereby, the heat dissipation area can be increased, and the heat dissipation effect in the controller cavity 130 can be ensured.

According to some embodiments of the present utility model, referring to fig. 12, 13 and 14, the first cylinder 11 is formed with a first communication hole 111 penetrating the first cylinder 11 in a thickness direction, the second cylinder 12 is formed with a second communication hole 121 penetrating the second cylinder 12 in the thickness direction of the second cylinder 12, and the dual motor housing assembly 100 may further include: and a waterway plate 70, wherein the waterway plate 70 is connected to the first cylinder 11 and the second cylinder 12 and is positioned at an inner side of the controller case 40, a third channel section 163 is formed in the waterway plate 70, and the third channel section 163 is connected to the first channel section 161 through the first communication hole 111 and to the second channel section 162 through the second communication hole 121. By providing the third flow path section 163 in the waterway plate 70, the third flow path section 163 can be detached individually, facilitating subsequent maintenance and replacement.

When the cooling system is in operation, the cooling liquid enters the first flow channel section 161 from the liquid inlet 140, after the heat dissipation of the first inner shell 20 is completed, the cooling liquid flows from the first flow channel section 161 to the third flow channel section 163 of the waterway plate 70 after passing through the first communication hole 111, after the heat dissipation of the controller shell 40 is completed, the cooling liquid flows from the third flow channel section 163 to the second flow channel section 162 after passing through the second communication hole 121, and after the heat dissipation of the second inner shell 30 is completed, the cooling liquid flows out of the dual-motor shell assembly 100 from the liquid outlet 150.

For example, as shown in fig. 14, the waterway plate 70 is coupled to the bottom of the controller case 40 by a plurality of bolts 80, so that the waterway plate 70 can be stably coupled to the dual motor case assembly 100. Preferably, as shown in fig. 18, the water inlet and the water outlet of the third flow channel section 163 may be sealed by O-rings, so that leakage of the cooling liquid can be prevented, and the tightness of the interface is ensured.

According to some embodiments of the present utility model, referring to fig. 3 and 6, the integrated housing 10 is formed with a lead hole 13, and a lead-out wire of the controller in the controller cavity 130 is adapted to be led out through the lead hole 13; the integrated shell 10 is provided with a plurality of wire clamping grooves 14, and the wire clamping grooves 14 comprise a plurality of wire clamping grooves 14, that is, the number of wire clamping grooves 14 can be: two, three or four or more, a plurality of card wire slots 14 are arranged at intervals along the wiring direction of the outgoing wires of the controller. By arranging the lead holes 13, the three-phase copper bars of the controller can extend out of the lead holes 13 and be connected with the three phases of the motor without sealing; by providing the wire clamping groove 14, the low-voltage wire harness can be limited from going, and at the same time, the low-voltage wire harness can be fixed.

For example, as shown in fig. 3 and 6, the bottom wall of the controller chamber 130 is provided with two lead holes 13, one lead hole 13 for connecting the controller to the motor in the first inner case 20 and the other lead hole 13 for connecting the controller to the motor in the second inner case 30, and a plurality of wire clamping grooves 14 are provided on the outer peripheral wall surfaces of the first cylinder 11 and the second cylinder 12, so that the orientation of the low-voltage wire harness can be restricted. Preferably, the wire clamping groove 14 may be: u-shape or V-shape, and other shapes.

According to a double motor of a second aspect of the present utility model, referring to fig. 1 and 2, the double motor includes: the first motor, the second motor, the controller and the dual motor housing assembly 100 of the first aspect of the present embodiment. The controller is used for controlling the first motor and the second motor; the first motor is disposed in the first motor cavity 110, the second motor is disposed in the second motor cavity 120, and the controller is disposed in the controller cavity 130.

For example, the first motor is a driving motor, the second motor is a generator, and the controller is internally provided with: the dual motor housing assembly 100 is provided with an armature and an end cap for mounting a drive motor and a generator, for IGBT (insulated gate bipolar transistor) modules, capacitor modules, control boards, high voltage plug-ins, and the like.

According to the dual motor of the embodiment of the present utility model, by providing the dual motor housing assembly 100 of the first aspect on the dual motor and providing the cooling channel 160 inside the dual motor housing assembly 100, the first motor cavity 110, the second motor cavity 120 and the controller cavity 130 can be cooled, the cooling range of the cooling channel 160 can be increased, the cooling efficiency of the cooling channel 160 can be improved, the utilization rate of the cooling section can be improved, the length of the cooling channel 160 can be reduced, the integration level of the dual motor housing assembly 100 can be improved, and the manufacturing cost and the volume can be reduced.

A dual motor according to an embodiment of the present utility model is described below with reference to fig. 1 to 18.

In a first embodiment of the present utility model,

as shown in fig. 1, the dual motor according to the embodiment of the present utility model includes: drive motor, generator, controller and dual motor housing assembly 100. The drive motor is mounted in a first motor cavity 110 of the dual motor housing assembly 100, the generator is mounted in a second motor cavity 120 of the dual motor housing assembly 100, and the controller is mounted in a controller cavity 130 of the dual motor housing assembly 100.

The dual motor housing assembly 100 includes: the integrated housing 10, the first inner housing 20, the second inner housing 30, the waterway cover 50, and the heat dissipating ribs 60. The integrated housing 10 includes: a first cylinder 11, a second cylinder 12, and a controller housing 40. Wherein the first cylinder 11 and the second cylinder 12 are arranged in the left-right direction, the first cylinder 11 is arranged on the right side of the second cylinder 12, the controller housing 40 is arranged on the upper sides of the first cylinder 11 and the second cylinder 12, and the water channel cover plate 50 covers the bottom of the controller housing 40. The first inner case 20 is installed inside the first cylinder 11, the driving motor is installed inside the first inner case 20 inside the first motor chamber 110, the second inner case 30 is installed inside the second cylinder 12, and the generator is installed inside the second inner case 30 inside the second motor chamber 120. The first cylinder 11 is provided with a first communication hole 111 communicating the first channel section 161 and the third channel section 163, and the second cylinder 12 is provided with a second communication hole 121 communicating the second channel section 162 and the third channel section 163.

The dual motor housing assembly 100 is also provided with: a liquid inlet 140, a liquid outlet 150 and a cooling channel 160. Wherein the cooling channel 160 includes: the first flow path section 161, the second flow path section 162 and the third flow path section 163, the first flow path section 161 is defined by the fit between the outer peripheral wall of the first inner housing 20 and the inner wall surface of the first cylinder 11, the second flow path section 162 is defined by the fit between the outer peripheral wall of the second inner housing 30 and the inner wall surface of the second cylinder 12, and the third flow path section 163 is formed by the friction stir welding connection of the water channel cover plate 50 and the bottom wall of the controller chamber 130.

The integrated housing 10 is further provided with: the lead wire holes 13 can lead out outgoing wires of the controller, and the wiring grooves 14 can control the trend of the low-voltage wire harness.

The upper portion of the controller shell 40 is opened, the water channel cover plate 50 is welded at the bottom of the inner side of the controller shell 40, the third flow passage section 163 is arranged in the space defined by the controller shell 40 and the water channel cover plate 50, the heat dissipation convex rib 60 is arranged in the controller cavity 130, the heat dissipation convex rib 60 can be arranged at the bottom wall of the inner side of the controller shell 40, the heat dissipation convex rib 60 can also be arranged on the lower surface of the water channel cover plate 50, and the length of the heat dissipation convex rib 60 changes along with the change of the net height of the controller cavity 130 in the up-down direction.

When the double motors work, the controller controls the driving motor and the generator to operate, and at the moment, the cooling system works. When the cooling system works, cooling liquid enters the first flow channel section 161 from the liquid inlet 140, after cooling of the driving motor is completed, the cooling liquid enters the third flow channel section 163 from the first communication port, after cooling of the controller is completed, the cooling liquid enters the second flow channel section 162 from the second communication port, after cooling of the driving motor is completed, the cooling liquid flows out of the double motors from the liquid outlet 150.

According to the double motor of the embodiment of the utility model, by arranging the double motor housing assembly 100 on the double motor and arranging the cooling channel 160 inside the double motor housing assembly 100, the first motor cavity 110, the second motor cavity 120 and the controller cavity 130 can be cooled, the cooling range of the cooling channel 160 can be increased, the cooling efficiency of the cooling channel 160 can be improved, the utilization rate of a cooling section can be improved, the length of the cooling channel 160 can be reduced, the integration level of the double motor housing assembly 100 can be improved, and the manufacturing cost and the volume can be reduced.

In a second embodiment of the present utility model,

as shown in fig. 12, the present embodiment is substantially the same as the first embodiment in that the same reference numerals are used for the same components, and the difference is that: the waterway cover 50 of the first embodiment is connected to the bottom of the controller case 40 by welding, and the third flow path section 163 is provided at a limited space portion of the waterway cover 50 and the controller case 40, while the waterway plate 70 of the second embodiment is connected to the bottom of the controller case 40 by sixteen bolts 80, the waterway plate 70 includes an upper cover 71 and a base 72, and the third flow path section 163 is provided inside the upper cover 71.

When the waterway plate 70 is fixedly coupled to the bottom of the controller case 40, the upper cover plate 71 is covered on the base 72, the screw ends of the bolts 80 are abutted against the upper surface of the upper cover plate 71, the screw ends of the bolts 80 pass through the base 72 and the bolt 80 holes inside the controller case 40, and the upper cover plate 71 and the base 72 are fixed to the bottom of the controller case 40, and at this time, the waterway plate 70 is fixed.

According to the double motor of the embodiment of the utility model, by arranging the double motor housing assembly 100 on the double motor and arranging the cooling channel 160 inside the double motor housing assembly 100, the first motor cavity 110, the second motor cavity 120 and the controller cavity 130 can be cooled, the cooling range of the cooling channel 160 can be increased, the cooling efficiency of the cooling channel 160 can be improved, the utilization rate of a cooling section can be improved, the length of the cooling channel 160 can be reduced, the integration level of the double motor housing assembly 100 can be improved, and the manufacturing cost and the volume can be reduced.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. The utility model provides a two motor housing assembly, its characterized in that, two motor housing assembly defines first motor chamber, second motor chamber and the controller chamber of interval arrangement, two motor housing assembly has inlet, liquid outlet and intercommunication be in the inlet with cooling channel between the liquid outlet, cooling channel includes the three cooling section that links to each other in order along coolant liquid flow direction, three the cooling section is used for the cooling respectively the inner wall in first motor chamber the inner wall in second motor chamber and the inner wall in controller chamber.

2. The dual motor housing assembly of claim 1, wherein the three cooling segments are a first flow channel segment, a second flow channel segment, and a third flow channel segment, respectively, the dual motor housing assembly comprising:

the integrated shell is integrally formed and comprises a first cylinder body and a second cylinder body;

the first inner shell is annular and cylindrical and is arranged on the radial inner side of the first cylinder, the first flow passage section is defined by cooperation between the outer peripheral wall of the first inner shell and the inner wall surface of the first cylinder, and the first motor cavity is defined by the inner side of the first inner shell;

the second inner shell is annular and cylindrical and is arranged on the radial inner side of the second cylinder, the second flow passage section is defined by cooperation between the outer peripheral wall of the second inner shell and the inner wall surface of the second cylinder, and the second motor cavity is defined by the inner side of the second inner shell.

3. The dual-motor housing assembly according to claim 2, wherein a first seal groove is formed at one end of the first inner housing in the axial direction, the first seal groove is formed at an end face and/or an outer circumferential surface of the one end of the first inner housing and extends in the circumferential direction of the first inner housing to be annular, a first seal ring is arranged in the first seal groove, the first seal ring is abutted between the first cylinder and the first inner housing, and the other end of the first inner housing in the axial direction is welded with the first cylinder;

the axial one end of second inner shell is equipped with the second seal groove, the second seal groove form in the terminal surface and/or the outer peripheral face of one end of second inner shell and follow the circumference of second inner shell extends to annular, be equipped with the second sealing washer in the second seal groove, the second sealing washer butt is in between the second barrel with the second inner shell, the axial other end of second inner shell with second barrel welded connection.

4. The dual motor housing assembly of claim 2, wherein the first and second barrels are arranged side-by-side in a first direction, the first direction being perpendicular to an axial direction of the first barrel, the integrated housing further comprising: the controller shell is connected with the first cylinder body and the second cylinder body and is arranged on one side of the first cylinder body and one side of the second cylinder body in the second direction, the second direction is perpendicular to the first direction and the axial direction of the first cylinder body, and the inner side of the controller shell is used for defining the controller cavity.

5. The dual motor housing assembly of claim 4, wherein the controller housing cooperates with the first cylinder and the second cylinder to define the third flow path section, the first cylinder having a first communication hole formed therethrough in a thickness direction, the second cylinder having a second communication hole formed therethrough in a thickness direction, the third flow path section being connected to the first flow path section through the first communication hole and to the second flow path section through the second communication hole.

6. The dual motor housing assembly of claim 5, wherein a bottom wall of the controller housing facing the first and second cylinders has a fitting opening therethrough, the fitting opening communicating with the third flow passage section, the dual motor housing assembly further comprising: the water channel cover plate is covered at the position of the assembly opening.

7. The dual motor housing assembly of claim 6, wherein a surface of the waterway cover plate facing the third flow passage segment is provided with heat dissipating ribs extending into the third flow passage segment, and/or a surface of the integrated shell located within the third flow passage segment is provided with heat dissipating ribs.

8. The dual motor housing assembly as claimed in claim 4, wherein the first cylinder is formed with a first communication hole penetrating the first cylinder in a thickness direction, the second cylinder is formed with a second communication hole penetrating the second cylinder in a thickness direction of the second cylinder,

the dual motor housing assembly further includes: the waterway plate is connected with the first cylinder body and the second cylinder body and is positioned on the inner side of the controller shell, the third runner section is formed in the waterway plate, and the third runner section is connected with the first runner section through the first communication hole and the second runner section through the second communication hole.

9. The dual motor housing assembly of claim 4, wherein the integrated housing has a lead hole formed therein, and wherein the lead wire of the controller in the controller cavity is adapted to lead out through the lead hole;

the integrated shell is provided with a plurality of wire clamping grooves, and the plurality of wire clamping grooves are distributed at intervals along the wiring direction of the outgoing wires of the controller.

10. A dual motor, comprising:

the motor control device comprises a first motor, a second motor and a controller, wherein the controller is used for controlling the first motor and the second motor;

the dual motor housing assembly of any of claims 1-9, the first motor being disposed within the first motor cavity, the second motor being disposed within the second motor cavity, the controller being disposed within the controller cavity.