CN112248782A - Motor system of electric automobile and electric automobile - Google Patents
Motor system of electric automobile and electric automobile Download PDFInfo
- Publication number
- CN112248782A CN112248782A CN202011153938.9A CN202011153938A CN112248782A CN 112248782 A CN112248782 A CN 112248782A CN 202011153938 A CN202011153938 A CN 202011153938A CN 112248782 A CN112248782 A CN 112248782A
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- copper bar
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- connector
- transmission
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 121
- 229910052802 copper Inorganic materials 0.000 claims abstract description 121
- 239000010949 copper Substances 0.000 claims abstract description 121
- 230000005540 biological transmission Effects 0.000 claims abstract description 60
- 241001127637 Plantago Species 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 8
- 238000005452 bending Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/0207—Wire harnesses
- B60R16/0215—Protecting, fastening and routing means therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The utility model provides an electric automobile's motor system and electric automobile belongs to electric automobile technical field. The motor system comprises a power assembly, a connecting assembly and a motor controller; the connecting assembly comprises a wire holder, a first three-phase copper bar, a second three-phase copper bar, a first three-phase connector and a second three-phase connector; the wire holder is connected with the inner wall of the shell of the transmission; one end of the first three-phase copper bar is fixed on the wire holder, and the other end of the first three-phase copper bar is connected with the first three-phase connector; one end of the second three-phase copper bar is fixed on the wire holder, and the other end of the second three-phase copper bar is connected with the second three-phase connector; the motor controller is located outside the housing of the transmission and is connected to the first three-phase connector and the second three-phase connector. Copper bar and connector are with low costs, and simple structure is small, and is easily fixed, and the space requirement is less to arranging of whole plantago cabin, has avoided adopting three-phase high-voltage wire harness to connect the cost height that motor controller and motor lead to, and it is big to occupy the space, to the problem that the space requirement is high of arranging of plantago cabin.
Description
Technical Field
The disclosure relates to the technical field of electric automobiles, in particular to an electric automobile and a motor system thereof.
Background
Electric vehicles are one of representatives of new energy vehicles, and generally include pure electric vehicles and hybrid vehicles. The pure electric automobile is driven by electric power only, the power source is only the motor, the hybrid electric automobile can be driven by electric power and fuel oil, and the power source is the motor and the engine.
At present, an electric automobile is provided with two motors which are connected with a transmission. Both motors are connected to a motor controller located outside the transmission housing. The two motors are both three-phase motors, namely three-phase power supply is adopted.
The two motors and the motor controller are connected through the three-phase high-voltage wire harness, the three-phase high-voltage wire harness is high in cost, large arrangement space is needed, and the requirement on the arrangement space of the whole front cabin is high.
Disclosure of Invention
The embodiment of the disclosure provides a motor system of an electric automobile and the electric automobile. The cost of the whole vehicle can be reduced, and the requirement on the arrangement space of the whole front cabin of the vehicle is reduced. The technical scheme is as follows:
in one aspect, an embodiment of the present disclosure provides a motor system of an electric vehicle, where the motor system includes: the power assembly, the connecting assembly and the motor controller;
the power assembly comprises a transmission, a first motor and a second motor which are positioned in a shell of the transmission;
the connecting assembly comprises a wire holder, a first three-phase copper bar, a second three-phase copper bar, a first three-phase connector and a second three-phase connector;
the wire holder, the first three-phase copper bar and the second three-phase copper bar are all located in a shell of the transmission, the first three-phase connector and the second three-phase connector are both installed on the shell of the transmission, one end of the first three-phase connector and one end of the second three-phase connector are both located in the shell of the transmission, and the other end of the first three-phase connector and the other end of the second three-phase connector are both located outside the shell of the transmission;
the wire holder is connected with the inner wall of the shell of the transmission;
one end of the first three-phase copper bar is fixed on the wire holder and is connected with the three-phase wire of the first motor, and the other end of the first three-phase copper bar is connected with the first three-phase connector;
one end of the second three-phase copper bar is fixed on the wire holder and connected with the three-phase wire of the second motor, and the other end of the second three-phase copper bar is connected with the second three-phase connector;
the motor controller is located outside the shell of the transmission and connected with the shell of the transmission, and the motor controller is connected with the first three-phase connector and the second three-phase connector respectively.
Optionally, the motor system comprises a wire holder cover plate and a first wiring bolt, the wire holder cover plate is connected with the wire holder, the wire holder cover plate and the wire holder enclose a cavity with an opening on one side, one end of the first three-phase copper bar is located in the cavity, and the other end of the first three-phase copper bar extends out of the cavity from the opening of the cavity,
the first wiring bolt is positioned in the cavity and connected with the first three-phase copper bar, and the bolt head of the first wiring bolt faces one side of the opening of the cavity;
the wiring seat cover plate is provided with a wiring hole, the wiring hole is opposite to the first wiring bolt, and a three-phase line of the first motor penetrates through the wiring hole and is connected with the first wiring bolt.
Optionally, the second three-phase copper bar is provided with a U-shaped section bent into a U shape, and a wiring block is fixed on the wiring seat;
the U-shaped section comprises a bending part and two opposite straight parts, and two ends of the bending part are respectively connected with the two straight parts;
the terminal block is located between two straight portions, two straight portions the terminal block passes through second wiring bolt and links to each other, the three-phase line of second motor with second wiring bolt links to each other.
Optionally, the first three-phase copper bar is connected with the first three-phase connector through a first connecting bolt, the second three-phase copper bar is connected with the second three-phase connector through a second connecting bolt, the first connecting bolt is parallel to the second connecting bolt, and the orientation of the bolt head of the first connecting bolt is the same as the orientation of the bolt head of the second connecting bolt.
Optionally, the second three-phase copper bar is further fixed in the casing of the transmission through a fastening bolt, the second connecting bolt and the second wiring bolt are all parallel, and the orientation of the bolt head of the fastening bolt, the orientation of the bolt head of the second connecting bolt and the orientation of the bolt head of the second wiring bolt are the same.
Optionally, the housing of the transmission comprises a housing body and a cover plate, wherein the side wall of the housing body is provided with a wiring window, the cover plate is positioned at the wiring window, and the cover plate is detachably connected with the housing body;
the first three-phase copper bar and the second three-phase copper bar are at least partially located at the wiring window.
Optionally, the casing of derailleur still includes the terminal panel, the terminal panel be located outside the shell body, and with the shell body can dismantle the connection, first three-phase connector with the second three-phase connector all is located on the terminal panel.
Optionally, the outer wall of the housing of the transmission is provided with at least two positioning pins spaced at intervals for mounting the motor controller, and the motor controller is provided with positioning holes matched with the positioning pins.
Optionally, the wire holder is fixed in the casing of derailleur through at least three fixing bolt, and at least one fixing bolt is located first three-phase copper bar with between the second three-phase copper bar, at least one fixing bolt is located first three-phase copper bar is kept away from one side of second three-phase copper bar, at least one fixing bolt is located second three-phase copper bar is kept away from one side of first three-phase copper bar.
In another aspect, an embodiment of the present disclosure further provides an electric vehicle, which includes the motor system of the electric vehicle according to the first aspect.
The beneficial effects brought by the technical scheme provided by the embodiment of the disclosure at least comprise:
the power assembly and the motor controller are connected through the connecting assembly, the first three-phase copper bar and the second three-phase copper bar can be fixed in the shell of the transmission in the power assembly by the wire holder of the connecting assembly, the first three-phase connector and the second three-phase connector are fixed on the shell of the transmission, the first three-phase copper bar is connected with the first three-phase connector, the second three-phase copper bar is connected with the second three-phase connector, the first motor of the power assembly is connected by the first three-phase copper bar, the second motor of the power assembly is connected by the second three-phase copper bar, the motor controller is connected by the first three-phase connector and the second three-phase connector, the first three-phase copper bar, the second three-phase copper bar, the first three-phase connector and the second three-phase connector are not only low in cost, simple in structure and small in volume, but also easy to fix, the requirement on the arrangement space of the front cabin of the whole vehicle is small, and the high cost, large occupied space and high requirement on the arrangement space of the whole front cabin.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a structural diagram of a motor system of an electric vehicle according to an embodiment of the present disclosure;
fig. 2 is a schematic partial structural diagram of a motor system of an electric vehicle according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a connection assembly provided in an embodiment of the present disclosure;
fig. 4 is a schematic partial structural diagram of a motor system of an electric vehicle according to an embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," "third," and similar terms in the description and claims of the present disclosure are not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, which may also change accordingly when the absolute position of the object being described changes.
Fig. 1 is a structural diagram of a motor system of an electric vehicle according to an embodiment of the present disclosure. As shown in fig. 1, the motor system includes: power assembly 10, linkage assembly 20, and motor controller 30.
Fig. 2 is a schematic partial structural diagram of a motor system of an electric vehicle according to an embodiment of the present disclosure. As shown in fig. 1 and 2 in conjunction, the power assembly 10 includes a transmission 101, a first electric machine 102 and a second electric machine 103 located within a housing of the transmission 101. The first motor 102 and the second motor 103 are both in transmission connection with the transmission 101.
The connecting assembly 20 includes a wire holder 201, a first three-phase copper bar 202, a second three-phase copper bar 203, a first three-phase connector 204, and a second three-phase connector 205.
The wire holder 201, the first three-phase copper bar 202 and the second three-phase copper bar 203 are all located in the shell of the transmission 101. The first three-phase connector 204 and the second three-phase connector 205 are both mounted on the housing of the transmission 101, one end of the first three-phase connector 204 and one end of the second three-phase connector 205 are both located inside the housing of the transmission 101, and the other end of the first three-phase connector 204 and the other end of the second three-phase connector 205 are both located outside the housing of the transmission 101.
The wire holder 201 is connected to the inner wall of the housing of the transmission 101.
One end of the first three-phase copper bar 202 is fixed on the wire holder 201 and connected with the three-phase wires of the first motor 102, and the other end of the first three-phase copper bar 202 is connected with the first three-phase connector 204.
One end of the second three-phase copper bar 203 is fixed on the wire holder 201 and connected with the three-phase wire of the second motor 103, and the other end of the second three-phase copper bar 203 is connected with the second three-phase connector 205.
The motor controller 30 is located outside the housing of the transmission 101 and is connected to the housing of the transmission 101, and the motor controller 30 is connected to the first three-phase connector 204 and the second three-phase connector 205, respectively.
The power assembly and the motor controller are connected through the connecting assembly, the first three-phase copper bar and the second three-phase copper bar can be fixed in the shell of the transmission in the power assembly by the wire holder of the connecting assembly, the first three-phase connector and the second three-phase connector are fixed on the shell of the transmission, the first three-phase copper bar is connected with the first three-phase connector, the second three-phase copper bar is connected with the second three-phase connector, the first motor of the power assembly is connected by the first three-phase copper bar, the second motor of the power assembly is connected by the second three-phase copper bar, the motor controller is connected by the first three-phase connector and the second three-phase connector, the first three-phase copper bar, the second three-phase copper bar, the first three-phase connector and the second three-phase connector are not only low in cost, simple in structure and small in volume, but also easy to fix, the requirement on the arrangement space of the front cabin of the whole vehicle is small, and the high cost, large occupied space and high requirement on the arrangement space of the whole front cabin.
In addition, adopt first three-phase copper bar 202 and second three-phase copper bar 203 transmission electric energy, the copper bar can bear great electric current and higher voltage, can adapt to the power consumption requirement among the electric automobile, guarantees that first motor 102 and second motor 103 can stable work.
In the embodiment of the disclosure, each of the first three-phase copper bar 202 and the second three-phase copper bar 203 includes three parallel conductive copper bars, which respectively correspond to the U phase, the V phase, and the W phase of the three-phase power, and the three conductive copper bars are insulated from each other.
The two ends of the first three-phase connector 204 and the two ends of the second three-phase connector 205 are respectively provided with three joints which respectively correspond to a U phase, a V phase and a W phase in three-phase power, the three joints at one end of the three-phase connector are used for being connected with three conductive copper bars of a three-phase copper bar in a one-to-one correspondence mode, and the three joints at the other end of the three-phase connector are used for being electrically connected with the motor controller 30. The three terminals of the motor controller 30 connected to the first three-phase connector 204 and the three terminals connected to the second three-phase connector 205 also correspond to the U-phase, the V-phase, and the W-phase of the three-phase power, respectively.
The first motor 102 and the second motor 103 are three-phase motors, and the three-phase wires include three wires respectively corresponding to a U phase, a V phase, and a W phase of three-phase power.
When assembling the motor system of the electric vehicle, the three-phase lines, the three-phase copper bars, the three-phase connectors, and the same ones of the motor controller 30 are correspondingly connected to ensure that the first motor 102 and the second motor 103 can operate normally.
The first three-phase connector 204 and the second three-phase connector 205 may be high-voltage connectors with multiple seals to meet creepage and clearance requirements. The voltage of the access motor in the electric automobile is high, and the high-voltage connector is adopted to ensure sufficient safety. The high-voltage connector with multiple seals can be a connector meeting the requirement of IP6K9K in GB/T30038-2013 protection level for electrical and electronic equipment of road vehicles.
Fig. 3 is a schematic structural diagram of a connection assembly provided in an embodiment of the present disclosure. As shown in fig. 3, the wire holder 201 may be fixed in the casing of the transmission 101 by at least three fixing bolts 401, at least one fixing bolt 401 is located between the first three-phase copper bar 202 and the second three-phase copper bar 203, at least one fixing bolt 401 is located on one side of the first three-phase copper bar 202 away from the second three-phase copper bar 203, and at least one fixing bolt 401 is located on one side of the second three-phase copper bar 203 away from the first three-phase copper bar 202.
Through setting up three fixing bolt 401 to fix connection terminal 201 from three different positions, make the both sides of first three-phase copper bar 202 and the both sides of second three-phase copper bar 203 all obtain fixedly, ensured the stability of connection terminal 201 installation, can also avoid fixing bolt 401 quantity too much and occupy more spaces.
In other embodiments, more than three fixing bolts 401 may be provided to ensure sufficient stability of the wire holder 201 installation.
As shown in fig. 3, the motor system may include a wire holder cover plate 501 and a first wire connection bolt 402. Wire holder apron 501 links to each other with wire holder 201, and wire holder apron 501 encloses into one side open-ended cavity A with wire holder 201, and the one end of first three-phase copper bar 202 is arranged in cavity A, and the other end extends to outside the cavity A by cavity A's opening.
The first wiring bolt 402 is located in the cavity a, and the first wiring bolt 402 is connected to the first three-phase copper bar 202, and a bolt head of the first wiring bolt 402 faces one side of an opening of the cavity a.
The wire holder cover plate 501 has a wire connection hole 501a, the wire connection hole 501a is opposed to the first wire connection bolt 402, and the three-phase wire of the first motor 102 is connected to the first wire connection bolt 402 through the wire connection hole 501 a.
When the first motor 102 and the first three-phase copper bar 202 are connected, the three-phase lines of the first motor 102 can be inserted into a cavity a enclosed by the wire holder cover plate 501 and the wire holder 201 through the wire holder holes 501a, and the three-phase lines of the first motor 102 are clamped by tightening the first connecting bolt 402, so that the three-phase lines of the first motor 102 are electrically connected with the first three-phase copper bar 202. Since the side of the cavity a is open and the head of the first terminal bolt 402 faces the open side of the cavity a, the first terminal bolt 402 can be screwed from the opening to clamp the three-phase line of the first motor 102. When disconnecting the first electric motor 102 and the first three-phase copper bar 202, the first connecting bolt 402 can also be screwed from the opening. The wire holder cover plate 501 can also provide a protection effect, and the first wiring bolt 402 is prevented from falling into the transmission 101 after being accidentally loosened, so that damage to the transmission 101 is avoided.
As shown in fig. 3, the second three-phase copper bar 203 has a U-shaped section 2031 bent into a U shape, and a terminal block 2011 is fixed on the wire holder 201.
The U-shaped section 2031 includes a curved portion 2031a and two opposite flat portions 2031b, and the curved portion 2031a is connected at both ends thereof to the two flat portions 2031b, respectively.
The terminal block 2011 is located between the two straight portions 2031b, the two straight portions 2031b and the terminal block 2011 are connected by the second terminal bolt 403, and the three-phase line of the second motor 103 is connected to the second terminal bolt 403.
All have the through-hole on the terminal block 2011 and on two straight portions 2031b, second terminal bolt 403 passes terminal block 2011 and two straight portions 2031b, through screwing up second terminal bolt 403, can make two straight portions 2031b press from both sides tight terminal block 2011, fixes second three-phase copper bar 203. The three-phase wire of the second motor 103 is clamped between the second terminal bolt 403 and one of the straight portions 2031 b.
Alternatively, the second binding bolt 403 and the first binding bolt 402 may form a non-zero included angle, i.e., the second binding bolt 403 and the first binding bolt 402 are not parallel. For example, in the disclosed embodiment, the second binding bolt 403 is perpendicular to the first binding bolt 402. The angle between the second connecting bolt 403 and the first connecting bolt 402 may be specifically arranged according to the housing inner space of the transmission 101 to facilitate screwing the first connecting bolt 402 and the second connecting bolt 403.
As shown in fig. 3, the first three-phase copper bar 202 and the first three-phase connector 204 may be connected by a first connecting bolt 404, and the second three-phase copper bar 203 and the second three-phase connector 205 may be connected by a second connecting bolt 405. The first connecting bolt 404 and the second connecting bolt 405 are parallel, and the orientation of the bolt head of the first connecting bolt 404 is the same as the orientation of the bolt head of the second connecting bolt 405.
Because the first connecting bolt 404 and the second connecting bolt 405 are parallel and the orientation of the bolt heads is the same, the first connecting bolt 404 and the second connecting bolt 405 can be screwed in the same direction, which is convenient for assembling and disassembling the motor system.
Illustratively, in the embodiment of the present disclosure, the first three-phase copper bar 202 and the first three-phase connector 204 are connected by three first connecting bolts 404, and the second three-phase copper bar 203 and the second three-phase connector 205 are connected by three second connecting bolts 405.
As shown in fig. 3, the second three-phase copper bar 203 may also be fixed in the casing of the transmission 101 by fastening bolts 406. The fastening bolt 406, the second connecting bolt 405, and the second wiring bolt 403 are all parallel, and the orientation of the bolt head of the fastening bolt 406, the orientation of the bolt head of the second connecting bolt 405, and the orientation of the bolt head of the second wiring bolt 403 are the same. Thus, the fastening bolt 406, the first connecting bolt 404, the second connecting bolt 405 and the second connecting bolt 403 can be screwed in the same direction, and the assembling and disassembling processes of the motor system are further simplified.
When the fastening bolt 406 is used for fixing the second three-phase copper bar 203, the second three-phase copper bar 203 and the fastening bolt 406, and the second three-phase copper bar 203 and the shell of the transmission 101 are insulated from each other, so that safety is ensured.
Fig. 4 is a schematic partial structural diagram of a motor system of an electric vehicle according to an embodiment of the present disclosure. As shown in fig. 4, in the embodiment of the present disclosure, the second three-phase copper bar 203 is fixed in the casing of the transmission 101 by two fastening bolts 406, and the two fastening bolts 406 are respectively located on two sides of the second three-phase copper bar 203.
As shown in fig. 4, the housing of the transmission 101 may include a housing body 1011 and a cover plate (not shown). The side wall of the housing body 1011 has a wiring window 1011a, and the cover plate is located at the wiring window 1011a and detachably connected with the housing body 1011. The first three-phase copper bar 202 and the second three-phase copper bar 203 are at least partially located at the wiring window 1011 a.
When assembling or disassembling the motor system, the cover plate may be removed, and the fastening bolt 406, the first connecting bolt 404, the second connecting bolt 405, and the second connecting bolt 403 may be screwed into the wiring window 1011a, thereby facilitating the operation. After the operation is completed, the cover plate is connected to the housing body 1011 again, thereby closing the terminal window 1011 a.
Illustratively, the cover plate may be detachably connected to the housing body 1011 by bolts.
As shown in fig. 4, the housing of the transmission 101 may further include a patch panel 1012. The wiring panel 1012 is located outside the housing body 1011, and the wiring panel 1012 is detachably connected to the housing body 1011. The first three-phase connector 204 and the second three-phase connector 205 are both located on the patch panel 1012.
By providing the wiring panel 1012 and using the wiring panel 1012 as the mounting base of the first three-phase connector 204 and the second three-phase connector 205, when assembling the electrode system of the electric vehicle, the first three-phase connector 204 and the second three-phase connector 205 may be connected to the wiring panel 1012 first, and then the wiring panel 1012 may be mounted to the housing body 1011, so as to facilitate the mounting of the first three-phase connector 204 and the second three-phase connector 205.
Alternatively, the wiring panel 1012 may be detachably connected to the housing body 1011 by bolts for facilitating disassembly and assembly.
Illustratively, 7 bolts may be connected between the patch panel 1012 and the housing body 1011, with the 7 bolts being spaced along the edge of the patch panel 1012.
As shown in fig. 4, the position on the outer wall of the case of the transmission 101 for mounting the motor controller 30 may have two positioning pins 1013 at intervals, and the motor controller 30 has positioning holes matching with the positioning pins 1013. When the motor controller 30 is installed, the positioning pin 1013 on the casing of the transmission 101 can be inserted into the positioning hole of the motor controller 30 to preliminarily position the motor controller 30, and then the motor controller 30 is fixedly connected with the casing of the transmission 101, so that the assembling accuracy is improved.
In other embodiments, the transmission 101 may also have three or more dowel pins 1013 spaced apart on the outer housing wall.
The embodiment of the disclosure also provides an electric automobile which comprises the motor system of any one of the electric automobiles shown in fig. 1-4.
The electric vehicle can be a pure electric vehicle or a hybrid electric vehicle, and the disclosure does not limit the electric vehicle.
The power assembly and the motor controller are connected through the connecting assembly, the first three-phase copper bar and the second three-phase copper bar can be fixed in the shell of the transmission in the power assembly by the wire holder of the connecting assembly, the first three-phase connector and the second three-phase connector are fixed on the shell of the transmission, the first three-phase copper bar is connected with the first three-phase connector, the second three-phase copper bar is connected with the second three-phase connector, the first motor of the power assembly is connected by the first three-phase copper bar, the second motor of the power assembly is connected by the second three-phase copper bar, the motor controller is connected by the first three-phase connector and the second three-phase connector, the first three-phase copper bar, the second three-phase copper bar, the first three-phase connector and the second three-phase connector are not only low in cost, simple in structure and small in volume, but also easy to fix, the requirement on the arrangement space of the front cabin of the whole vehicle is small, and the high cost, large occupied space and high requirement on the arrangement space of the whole front cabin.
The above description is intended to be exemplary only and not to limit the present disclosure, and any modification, equivalent replacement, or improvement made without departing from the spirit and scope of the present disclosure is to be considered as the same as the present disclosure.
Claims (10)
1. An electric motor system of an electric vehicle, the electric motor system comprising: the device comprises a power assembly (10), a connecting assembly (20) and a motor controller (30);
the power assembly (10) comprises a transmission (101), a first electric machine (102) and a second electric machine (103) located within a housing of the transmission (101);
the connecting assembly (20) comprises a wire holder (201), a first three-phase copper bar (202), a second three-phase copper bar (203), a first three-phase connector (204) and a second three-phase connector (205);
the wire holder (201), the first three-phase copper bar (202) and the second three-phase copper bar (203) are all located in a shell of the transmission (101), the first three-phase connector (204) and the second three-phase connector (205) are all installed on the shell of the transmission (101), one end of the first three-phase connector (204) and one end of the second three-phase connector (205) are both located in the shell of the transmission (101), and the other end of the first three-phase connector (204) and the other end of the second three-phase connector (205) are both located outside the shell of the transmission (101);
the wire holder (201) is connected with the inner wall of the shell of the speed changer (101);
one end of the first three-phase copper bar (202) is fixed on the wire holder (201) and is connected with three phase lines of the first motor (102), and the other end of the first three-phase copper bar (202) is connected with the first three-phase connector (204);
one end of the second three-phase copper bar (203) is fixed on the wire holder (201) and is connected with the three-phase wire of the second motor (103), and the other end of the second three-phase copper bar (203) is connected with the second three-phase connector (205);
the motor controller (30) is located outside a shell of the transmission (101) and connected with the shell of the transmission (101), and the motor controller (30) is connected with the first three-phase connector (204) and the second three-phase connector (205) respectively.
2. The electric motor system of the electric automobile according to claim 1, characterized in that the electric motor system comprises a wire holder cover plate (501) and a first wiring bolt (402), the wire holder cover plate (501) is connected with the wire holder (201), the wire holder cover plate (501) and the wire holder (201) enclose a cavity (A) with one side open, one end of the first three-phase copper bar (202) is located in the cavity (A), and the other end extends out of the cavity (A) from the opening of the cavity (A),
the first wiring bolt (402) is positioned in the cavity (A) and is connected with the first three-phase copper bar (202), and the bolt head of the first wiring bolt (402) faces to one side of the opening of the cavity (A);
the wire holder cover plate (501) has a wire connection hole (501a), the wire connection hole (501a) is opposite to the first wire connection bolt (402), and the three-phase wire of the first motor (102) passes through the wire connection hole (501a) to be connected to the first wire connection bolt (402).
3. The electric motor system of the electric automobile according to claim 2, wherein the second three-phase copper bar (203) has a U-shaped section (2031) bent into a U shape, and a terminal block (2011) is fixed on the wire holder (201);
the U-shaped section (2031) comprises a curved part (2031a) and two opposite straight parts (2031b), wherein two ends of the curved part (2031a) are respectively connected with the two straight parts (2031 b);
the junction block (2011) is located between two straight portions (2031b), the junction block (2011) is connected through second wiring bolt (403), the three-phase line of the second motor (103) with the second wiring bolt (403) is connected.
4. The electric motor system of claim 3, wherein the first three-phase copper bar (202) is connected with the first three-phase connector (204) through a first connecting bolt (404), the second three-phase copper bar (203) is connected with the second three-phase connector (205) through a second connecting bolt (405), the first connecting bolt (404) and the second connecting bolt (405) are parallel, and the orientation of the bolt head of the first connecting bolt (404) is the same as the orientation of the bolt head of the second connecting bolt (405).
5. The electric motor system of claim 4, characterized in that the second three-phase copper bar (203) is further fixed in the housing of the transmission (101) by a fastening bolt (406), the second connecting bolt (405) and the second wiring bolt (403) are all parallel, and the orientation of the bolt head of the fastening bolt (406), the orientation of the bolt head of the second connecting bolt (405) and the orientation of the bolt head of the second wiring bolt (403) are the same.
6. The motor system of the electric vehicle according to any one of claims 1 to 5, wherein the housing of the transmission (101) comprises a housing body (1011) and a cover plate, the side wall of the housing body (1011) has a wiring window (1011a), the cover plate is located at the wiring window (1011a), and the cover plate is detachably connected with the housing body (1011);
the first three-phase copper bar (202) and the second three-phase copper bar (203) are at least partially located at the wiring window (1011 a).
7. The electric motor system of claim 6, wherein the housing of the transmission (101) further comprises a wiring panel (1012), the wiring panel (1012) is located outside the housing body (1011) and is detachably connected to the housing body (1011), and the first three-phase connector (204) and the second three-phase connector (205) are both located on the wiring panel (1012).
8. The motor system of an electric vehicle according to any one of claims 1 to 5,
the position of the outer wall of the shell of the transmission (101) for installing the motor controller (30) is provided with at least two positioning pins (1013) at intervals, and the motor controller (30) is provided with positioning holes matched with the positioning pins (1013).
9. The electric motor system of any one of claims 1 to 5, wherein the wire holder (201) is fixed in the casing of the transmission (101) through at least three fixing bolts (401), at least one fixing bolt (401) is located between the first three-phase copper bar (202) and the second three-phase copper bar (203), at least one fixing bolt (401) is located on one side of the first three-phase copper bar (202) far away from the second three-phase copper bar (203), and at least one fixing bolt (401) is located on one side of the second three-phase copper bar (203) far away from the first three-phase copper bar (202).
10. An electric vehicle comprising the motor system of the electric vehicle according to any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011153938.9A CN112248782B (en) | 2020-10-26 | 2020-10-26 | Motor system of electric automobile and electric automobile |
| PCT/CN2021/119926 WO2022089107A1 (en) | 2020-10-26 | 2021-09-23 | Electric motor system of electric vehicle, and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011153938.9A CN112248782B (en) | 2020-10-26 | 2020-10-26 | Motor system of electric automobile and electric automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112248782A true CN112248782A (en) | 2021-01-22 |
| CN112248782B CN112248782B (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011153938.9A Active CN112248782B (en) | 2020-10-26 | 2020-10-26 | Motor system of electric automobile and electric automobile |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112248782B (en) |
| WO (1) | WO2022089107A1 (en) |
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Also Published As
| Publication number | Publication date |
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| WO2022089107A1 (en) | 2022-05-05 |
| CN112248782B (en) | 2022-02-01 |
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Effective date of registration: 20240522 Address after: Room 36, 5th Floor, Comprehensive Service Building, Fanchang Economic Development Zone Management Committee, Fanchang District, Wuhu City, Anhui Province, 241200 Patentee after: Wuhu Aike Power System Co.,Ltd. Country or region after: China Address before: 241006 Changchun Road, Wuhu economic and Technological Development Zone, Wuhu, Anhui, 8 Patentee before: CHERY AUTOMOBILE Co.,Ltd. Country or region before: China |