CN213139054U - Power system - Google Patents
Power system Download PDFInfo
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- CN213139054U CN213139054U CN202021485794.2U CN202021485794U CN213139054U CN 213139054 U CN213139054 U CN 213139054U CN 202021485794 U CN202021485794 U CN 202021485794U CN 213139054 U CN213139054 U CN 213139054U
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Abstract
The utility model discloses a driving system is applicable to the electric motor car, wherein, include: the first box body is provided with a first side cover; the second box body is provided with a second side cover; a connecting rod; a motor module; a transmission module; a motor controller module; a battery. The technical scheme of the utility model beneficial effect lies in: the technical scheme has good heat dissipation performance and waterproof effect; the gravity center of the power system is balanced and stabilized by adopting an integrated design; the high-speed motor and the shell and the component of the speed changer are simple in design and easy to disassemble, assemble and maintain; and the noise reduction design is adopted, so that the working noise is reduced.
Description
Technical Field
The utility model relates to an electric motor car field especially relates to a driving system.
Background
At present, electric motorcycles and electric mopeds in the market basically use hub motors. The common hub motor in the field is generally of an outer rotor structure, the design has low efficiency when the hub motor runs at low speed and high torque, and the design with the stator inside causes poor heat dissipation effect; most sensors of the hub motor are Hall sensors, and the failure rate of electronic components is high in high-temperature and humid environments; in the cold and hot impact environment, the motor is prone to water ingress, which can also lead to failure of the hub motor.
In the prior art, a side-hung power system is often arranged on one side of a vehicle, and the gravity center of the vehicle deviates to one side, so that the control of the whole vehicle is influenced. Besides, the conventional side-hung motor has the problem of noise which cannot be improved, and the heat dissipation of the motor controller can be influenced by improper installation positions of the motor controller and the motor, so that the wiring of the whole vehicle is complicated.
Disclosure of Invention
According to the problems in the prior art, the power system is provided, and aims to improve the problems of the electric vehicle using the hub motor, so that the electric vehicle has good heat dissipation performance, waterproof performance and power performance, the structure is simplified, the gravity on two sides in the driving process is balanced, the gravity center is reduced, and the controllability of the system is improved.
The technical scheme specifically comprises the following steps:
a power system for an electric vehicle, comprising:
the first box body is provided with a first side cover;
the second box body is provided with a second side cover;
a connecting rod;
the motor module is arranged on one side of the first box body;
the motor controller module is arranged in the second box body and is connected to the motor module;
a transmission module connected to the first case;
a battery.
Preferably, the first case is provided with:
and the rear shock absorber rubber bushing is connected with a rear shock absorber.
Preferably, the second casing is provided with:
a power supply and signal line access port;
a phase line and signal line access port.
A phase line terminal combination;
a power terminal assembly;
a signal terminal assembly.
Preferably, the connecting rod includes:
the connecting main rod is connected with the first box body through a first connecting sleeve;
the first damping sleeve is arranged between the first box body and the connecting main rod;
and the second damping sleeve is arranged between the second box body and the connecting main rod.
Preferably, the motor module is provided with:
the motor shell is arranged on one side of the first box body;
one end of the motor shaft penetrates through the motor shell and the first box body and is connected to the transmission module, and the other end of the motor shaft is a conical surface and is connected to a motor rotor;
the induction magnet is arranged on an induction magnet seat, and the induction magnet seat is connected to the motor shaft;
the motor rotor is arranged in the motor shell and provided with a conical through hole which is sleeved on the conical surface of the motor shaft;
a magnetic encoder, the magnetic encoder is connected to a magnetic encoder mounting plate, the magnetic encoder mounting plate is connected to the motor housing.
Preferably, the transmission module is provided with:
the transmission and the first box form a first cavity;
a countershaft assembly connected between the transmission and the electric machine module and specifically including:
a secondary shaft;
a noise reducer disposed between the countershaft and a gear;
the output gear combination specifically includes:
an output shaft.
Preferably, the transmission is provided with:
a refueling bolt;
an oil drain bolt;
a vent hole;
a brake shoe fixing pin.
Preferably, the motor controller module is provided with:
a motor controller;
the motor controller circuit board is connected to the shell of the second box body;
the motor controller is provided with:
a self-learning unit;
a failure transmission unit.
Preferably, the battery is provided with a detection unit connected to the motor controller and a meter.
The technical scheme of the utility model beneficial effect lies in: the technical scheme has good heat dissipation performance and waterproof effect; the gravity center of the power system is balanced and stabilized by adopting an integrated design; the high-speed motor and the shell and the component of the speed changer are simple in design and easy to disassemble, assemble and maintain; and the noise reduction design is adopted, so that the working noise is reduced.
Drawings
Embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings. The drawings are, however, to be regarded as illustrative and explanatory only and not as restrictive of the scope of the invention.
Fig. 1 is a block diagram of a power system according to an embodiment of the present invention;
fig. 2 is an overall schematic diagram of a power system according to an embodiment of the present invention;
fig. 3 is an overall plan view of the power system according to the embodiment of the present invention;
fig. 4 is a cross-sectional view of an electric machine module and a transmission module according to an embodiment of the present invention;
fig. 5 is an exploded view of a connecting rod according to an embodiment of the present invention;
fig. 6 is a combined exploded view of the first box according to the embodiment of the present invention;
fig. 7 is a schematic structural diagram of an electric motor rotor according to an embodiment of the present invention;
fig. 8 is a combined exploded view of a motor shaft according to an embodiment of the present invention;
fig. 9 is a combined exploded view of a motor stator according to an embodiment of the present invention;
fig. 10 is a combined exploded view of the auxiliary shaft according to an embodiment of the present invention;
fig. 11 is a combined exploded view of an output gear assembly according to an embodiment of the present invention;
fig. 12 is a composite exploded view of a transmission module according to an embodiment of the present invention;
fig. 13 is a combined exploded view of the second casing according to the embodiment of the present invention;
fig. 14 is a schematic structural diagram of another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
The utility model provides a driving system is applicable to the electric motor car, wherein, include:
a first case 131 provided with a left cover 140 by bolting;
a second casing 401 provided with a right cover 410 by bolting
A right cap 410 coupled thereto by being fixed by bolts;
a connection rod 110 for connecting the first casing 131 and the second casing 401;
a motor module 1 connected to one side of the first case 131 by bolts to output a torque a 1;
the motor controller module 2 is connected to the inside of the second box 401 in a bolt fixing manner and is used for controlling the torque A1 according to accelerator, brake and gear instructions of the electric vehicle;
a transmission module 3 for outputting an actual output torque a0 of the powertrain by being bolted to the first case 131;
and the battery 4 is used for providing electric energy for the power system.
Specifically, an oil seal 134 is arranged between the motor module 1 and the first box 131;
specifically, motor module 1 and derailleur module 3 are located the both sides of first box respectively, mutually noninterfere makes things convenient for the later maintenance.
In a preferred embodiment, the first housing 131 contains:
and a rear shock absorber rubber bushing 133 for connecting a rear shock absorber B1, the powertrain being suspended on the electric vehicle by the rear shock absorber B1.
Further, the first casing 131 further includes:
a bearing 132 for mounting the secondary output shaft;
and an oil seal 134 for sealing a connection port between the first case 131 and the motor module 1.
Further, the first box 131 is also provided with two disc bearings 132 in a press-fitting manner, the motor module 1 and the transmission module 3 are sealed through an oil seal 134, the oil seal 134 is installed after the motor shaft assembly 130 is installed, and the first box 131 is provided with a plurality of reinforcing ribs for ensuring strength.
In a preferred embodiment, the second housing 401 contains:
a phase terminal assembly 403 for connecting a phase;
a power terminal assembly 404 for connecting a power line;
a signal terminal assembly 405 for connecting signal lines;
a power and signal line access port 406 for accessing a power line or a signal line;
and the phase line and signal line access port 407 is used for accessing a phase line or a signal line.
Further, phase line and signal line insert mouth 407 and use the sealing plug and beat to glue and carry on spacingly and sealed, phase line and signal line insert mouth 407 are connected with phase line terminal 403 and signal terminal 405 respectively, motor controller circuit board 402 is fixed and is cooperated with second box 401 through encapsulating and specific structure, the MOS pipe is laminated each other through specific structure with second box 401, specific structure plays good heat conduction and evenly radiating effect, the power cord passes through power and signal line with the signal line and inserts mouth 406, insert mouth 406 through using the sealing plug and beat to glue spacing and sealed.
In a preferred embodiment, the connecting rod 110 comprises:
a connecting main rod 111 connected to the first case 131 through a connecting sleeve 113;
a damping sleeve 112 disposed between the second case 401 and the connecting main rod 111;
and a damping sleeve 135 disposed between the first case 131 and the connecting main rod 111.
Furthermore, the connecting main rod 111 is provided with a line passing hole C1 for a phase line and a signal line, the hole combination C2 on the inner side adopts a conical surface design to prevent water from being stored, the space between the connecting main rod 111 and the two sides of the frame is ensured through the connecting sleeve 113, and secondly, the specific structural design of the connecting main rod 111 ensures the strength between a power system and the frame.
In a preferred embodiment, the electric machine module 1 comprises:
a motor housing 231 coupled to one side of the first case 131 by fixing pins 233 and bolts;
a motor shaft 281, one end of the motor shaft 281 having a gear 285 passes through the motor housing 231, the first case 131 is connected to the transmission module 3, and the other end of the motor shaft 281 is a tapered surface and is connected to the motor rotor 250;
an induction magnet 284 mounted on an induction magnet holder 283, the induction magnet holder 283 being connected to the motor shaft 281;
a motor rotor 250, which is disposed in the motor housing 231 and has a tapered through hole C3, and is fixedly sleeved on the tapered surface of the motor shaft 281,
Further, a disc bearing 282 is pressed on the motor shaft 281, the bearing 282 is connected with the motor shaft 281 by a specific fit, and the tapered surface of the motor shaft 281 is used for installing the motor rotor 250.
Further, the motor stator 232 is vertically installed on the first case 131, and the motor housing 231 is directly contacted with the air; motor housing 231 guarantees good radiating effect through specific structural design, during the installation, puts into motor stator 232 after heating through motor housing 231, installation stopping pin 233, and the magnetic encoder combination 220 of embedment is fixed on motor housing 231, has constituted independent encoder layer, guarantees that the heat that the motor produced can not be to the great influence that magnetic encoder 221 produced, and motor side cover 210 is equipped with to the outside, guarantees good leakproofness through the sealed pad 200 of magnetic encoder lid.
In a preferred embodiment, the transmission module 3 comprises:
the transmission 341, the transmission 341 and the first case 131 form a cavity K for storing an oily material;
a countershaft assembly 330 connected between transmission 341 and electric machine module 1 for multiplying and transferring torque a1 and generating torque a2, comprising:
a noise reducer 333, the noise reducer 333 being located between the countershaft 331 and the gear 332;
the output gear assembly 320 specifically includes:
the output shaft 321 is used for increasing the torque A2 and outputting a torque A3, and the torque A3 is the actual output torque A0 of the power system;
an oil seal 343 is present between the output shaft 321 and the transmission 341;
and a gear 322 engaged with the gear 332.
In a preferred embodiment, transmission 341 includes:
a filler bolt 300 for closing a filler hole C5 for filling an oily material;
an oil drain bolt 310 for closing a filler hole C6 for discharging oily material;
a vent hole C7 for use with a gas tube 347 or a one-way valve 346 on the transmission to provide water resistance;
and a brake shoe fixing pin 345 and a rear brake cam bushing 344 for implementing a rear brake drum brake of the electric vehicle.
Furthermore, a bearing 342 for press-fitting a reduction gear is further arranged on the transmission 341, the transmission 341 and the end surface of the first case 131 are positioned and sealed by a positioning pin and a sealant, and the output shaft 321 and the transmission 341 are isolated from the outside by an oil seal 343.
Further, when the motor module 1 generates a large amount of heat, the oily material stored in the cavity K may help to dissipate the heat by being conducted through the first case 131 and the motor shaft 281.
In a preferred embodiment, the motor controller module 2 comprises:
a motor controller 420;
a motor controller circuit board 402 connected to the housing of the second casing 401 by potting;
the motor controller 420 is specifically provided with:
the self-learning unit T1 is used for triggering and outputting a zero-setting signal Q1 to the magnetic encoder 221 when the motor controller 420 is assembled, so that the magnetic encoder 221 realizes position zero setting;
and the fault transmission unit T2 is used for transmitting the real-time running state data Q of the motor module 1 to the upper computer S from the system fault diagnosis interface B3, so that a manager of the power system can conveniently perform fault analysis according to the real-time running state data Q in the upper computer S.
Further, in order to ensure a good heat dissipation effect of the motor controller 420 and a convenient maintenance of the motor controller 420 at a later stage, the housing of the motor controller 420 is integrated with the second housing 401,
in a preferred embodiment, the battery 4 is provided with a detection unit T3 connected to the motor controller 420 and the meter Z for outputting an operation state signal S1 to the meter Z.
Further, the motor controller 420 is located in the second casing 401 of the power system, and when a malfunction occurs, maintenance and malfunction determination can be performed as long as the right cap 410 is removed.
Further, an MOS tube in the power system is close to the side of a wheel, and the flow direction of wind is disturbed by the rotation of the wheel; the MOS tube is connected with the second box body 401 and radiates heat through the heat radiation rib of the second box body 401; in order to achieve uniformity of heat dissipation, the core components of the motor controller 420 are integrated with the second casing 401 in a glue filling manner.
Specifically, the connecting rod assembly 110 and the first case assembly 130 and the second case assembly 400, the first case assembly 130 and the transmission case assembly 340 and the motor stator assembly 230, and the second case assembly 400 and the right cover 410 are all positioned by positioning pins.
Further, the motor shaft assembly 280 is installed in the first box assembly 130, the oil seal 134 is installed, the joint of the first box assembly 130 and the motor stator assembly 230 is coated with sealant, positioning is performed by using positioning pins, and a phase line sheath and a signal line sheath are installed on a hole site of the first box 131, so that good waterproofness of the motor is guaranteed. Motor phase line and signal line are all walked the line and are carried on spacingly through specific structure in the inside of first box 131 and motor housing 231, guarantee that the pencil can not shake in the motion process, have guaranteed the life-span and the security of pencil. The motor rotor assembly 250 is fixed by using thread glue and further locked by using a nut, and the motor rotor assembly 250 and the motor shaft assembly 280 are positioned by a structure of a conical surface.
Further, a motor signal wire is connected, a magnetic encoder cover sealing gasket 200 is installed, and a motor side cover 210 is locked by bolts to ensure good waterproofness. And then coating sealant on the end face, respectively installing an output gear combination 320 and a countershaft combination 330 in a positioning mode by using positioning pins, then installing a transmission combination 340, installing an oil discharge hole bolt 310 on the first box body combination 130, adding lubricating oil, and installing an oiling bolt 300 after the completion. The motor phase line and signal line bunch penetrates through a specific structure on the first box body 131, passes through a hole on the connecting main rod 111, then penetrates out of the phase line and signal line access port 407, the phase line and signal line access port 407 is sealed in a double sealing mode by using sealing glue and sealing plugs, then is correspondingly connected with the phase line terminal 403 and the signal terminal 405, then an external power line, signal line and fault diagnosis interface connecting line L0 is led in from the power supply and signal line access port 406 and is correspondingly connected with the power supply terminal 404 and the signal terminal 405, the access port 406 is sealed by using the sealing plugs and the sealing glue, and then the end face of the second box body 401 is sealed with the right cover 410 by smearing the sealing glue. The utility model discloses a machine controller part, machine controller circuit board 402 is laminated through the mode of watering and second box 401's casing surface and is connected, in order to guarantee good thermal diffusivity and shock resistance. And finally, a brake system is installed, a brake cable can be fixed on a rear brake steel cable fixing clamp, the transmission body 241 supports two brake modes of drum braking and disc braking, the motor controller 420 is wired according to rules, a power supply is switched on, the self-learning module T1 performs self-learning, the motor zero position adjustment is not required to be performed mechanically, and the motor controller 420 is matched with the motor module 1.
Further, when a failure occurs, the upper computer connected through the failure diagnosis interface B3 can find the cause of the failure.
In another preferred embodiment, in order to reduce the cost, a motor phase line and a signal outgoing line Lz of the power system are led out from the upper end of the left side cover 140, the controller is fixed on the frame, other structures are unchanged, and an outlet on the left side cover 140 is sealed by a rubber plug and glue.
The technical scheme of the utility model beneficial effect lies in: the technical scheme adopts the high-speed motor and the transmission, and has good heat dissipation performance and waterproof effect; the gravity center of the power system is balanced and stabilized by adopting an integrated design; the high-speed motor and the shell and the component of the speed changer are simple in design and easy to disassemble, assemble and maintain; and the noise reduction design is adopted, so that the working noise is reduced.
The description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the invention, and those skilled in the art should understand that all the equivalent substitutions and obvious changes made by the description and drawings should be included within the scope of the present invention.
Claims (9)
1. A power system for an electric vehicle, comprising:
the first box body is provided with a first side cover;
the second box body is provided with a second side cover;
a connecting rod;
the motor module is arranged inside the first box body;
the motor controller module is arranged on one side of the second box body and is connected to the motor module;
a transmission module connected to the first case;
a battery.
2. A power system according to claim 1, wherein the first case is provided with:
and the rear shock absorber rubber bushing is connected with a rear shock absorber.
3. A power system according to claim 1, wherein the second case is provided with:
a power supply and signal line access port;
a phase line and signal line access port;
a phase line terminal combination;
a power terminal assembly;
a signal terminal assembly.
4. The power system of claim 1, wherein the connecting rod comprises:
the connecting main rod is connected with the first box body through a first connecting sleeve;
the first damping sleeve is arranged between the first box body and the connecting main rod;
and the second damping sleeve is arranged between the second box body and the connecting main rod.
5. A power system according to claim 1, wherein the electric machine module is provided with:
the motor shell is arranged on one side of the first box body;
one end of the motor shaft penetrates through the motor shell and the first box body and is connected to the transmission module, and the other end of the motor shaft is a conical surface and is connected to a motor rotor;
the induction magnet is arranged on an induction magnet seat, and the induction magnet seat is connected to the motor shaft;
the motor rotor is arranged in the motor shell and provided with a conical through hole which is sleeved on the conical surface of the motor shaft;
a magnetic encoder, the magnetic encoder is connected to a magnetic encoder mounting plate, the magnetic encoder mounting plate is connected to the motor housing.
6. A powertrain system according to claim 1, wherein the transmission module is provided with:
the transmission and the first box form a first cavity;
a countershaft assembly connected between the transmission and the electric machine module and specifically including:
a secondary shaft;
a noise reducer disposed between the countershaft and a gear;
the output gear combination specifically includes:
an output shaft.
7. The powertrain system of claim 6, wherein the transmission is provided with:
a refueling bolt;
an oil drain bolt;
a vent hole;
a brake shoe fixing pin.
8. A power system according to claim 5, wherein the motor controller module is provided with:
a motor controller;
the motor controller circuit board is connected to the shell of the second box body;
the motor controller is provided with:
a self-learning unit;
a failure transmission unit.
9. A power system according to claim 1, wherein the battery is provided with a detection unit connected to the motor controller and a meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021485794.2U CN213139054U (en) | 2020-07-24 | 2020-07-24 | Power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021485794.2U CN213139054U (en) | 2020-07-24 | 2020-07-24 | Power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213139054U true CN213139054U (en) | 2021-05-07 |
Family
ID=75733039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021485794.2U Active CN213139054U (en) | 2020-07-24 | 2020-07-24 | Power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213139054U (en) |
-
2020
- 2020-07-24 CN CN202021485794.2U patent/CN213139054U/en active Active
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