CN207595183U - A kind of drive system of electric motor vehicle and electric motor car with two wheels - Google Patents
A kind of drive system of electric motor vehicle and electric motor car with two wheels Download PDFInfo
- Publication number
- CN207595183U CN207595183U CN201721354144.2U CN201721354144U CN207595183U CN 207595183 U CN207595183 U CN 207595183U CN 201721354144 U CN201721354144 U CN 201721354144U CN 207595183 U CN207595183 U CN 207595183U
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- heat dissipation
- electric vehicle
- stator
- motor
- driving system
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 74
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims abstract description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000741 silica gel Substances 0.000 claims abstract description 14
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 14
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 238000005452 bending Methods 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims description 20
- 238000003825 pressing Methods 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 239000011324 bead Substances 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 8
- 239000004065 semiconductor Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 1
- 238000010923 batch production Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a kind of drive system of electric motor vehicle and electric motor car with two wheels, include motor, controller and the heat-radiation fixed structure of the connection that is powered；Motor is DC Brushless Motor, and heat-radiation fixed structure includes a radiating shell with internal installation space, is fixedly installed on circuit boards to the pin bending of metal-oxide-semiconductor so that metal-oxide-semiconductor is in parallel shape with circuit board；Wherein, heat-radiation fixed structure includes the silica gel strip, iron press strip, the setting circle pin that contact with each other successively；The bottom surface insulation of the one side and radiating shell of metal-oxide-semiconductor connects, and another side is connected with silica gel strip；Setting circle pin fixing card is closed in radiating shell medial surface；The utility model good heat dissipation effect, heat dissipation are uniformly and processing, installation and dismounting process are all very easy, are very suitable for mass production applications, while can effectively meet the controller cooling requirements of control DC Brushless Motor operation.
Description
Technical Field
The utility model belongs to the electric drive field, concretely relates to electric vehicle drive system, the utility model discloses the two-wheeled electric motor car that this electric vehicle drive system used has still been related to.
Background
The driving system of the electric vehicle usually includes a motor and a controller for controlling the operation of the motor, and the performance of the motor and the controller, and the complexity of processing and manufacturing directly relate to the cost performance of the whole driving system of the electric vehicle, so people need to continuously improve the motor and the controller.
However, the heat dissipation structure of the conventional electric vehicle driving system has the problems of poor heat dissipation effect, uneven heat dissipation, complex processing and installation procedures and the like. Some prior art disclosures are used for solving above-mentioned technical problem, like the utility model patent of the publication number CN205609503U discloses a controller MOS manages heat radiation structure based on heat conduction base plate, and it includes hollow structure's heat dissipation casing, be provided with the circuit board in the heat dissipation casing, one side of circuit board is connected with the MOS pipe that a plurality of set up side by side through the pin, there is bellied mounting surface on the inside wall of heat dissipation casing, be provided with the heat conduction base plate on the mounting surface, the one side of heat conduction base plate is attached on mounting surface, the MOS pipe attach in on the another side of heat conduction base plate, be provided with the flexure strip that is used for carrying out the heat dissipation casing, heat conduction base plate, MOS pipe three and hugs closely in the heat dissipation casing. Also, for example, patent publication No. CN103298285A discloses a fixing and heat dissipating structure for a controller MOS transistor, which is used for fixing and dissipating heat of the MOS transistor inside the controller as a whole. The shell is provided with a wedge-shaped cavity formed by a cavity thick convex wall and an arc-shaped boss at the position adjacent to the MOS tube, and a transverse limiting boss is arranged in the wedge-shaped cavity; the MOS tube is arranged on the thick convex wall of the cavity in the wedge-shaped cavity; a soft wedge-shaped pressing strip is embedded and plugged between the MOS tube and the arc boss. The improved technologies adopt MOS tubes to be vertically fixed on a circuit board, so that the radiating surfaces of the MOS tubes are positioned on the side surface of a radiating shell, the radiating area is small, in order to realize the fixation of the MOS tubes, the improved technologies are respectively provided with a limiting boss and an arc boss in the radiating shell and around the MOS tubes, the arrangement of the limiting boss and the arc boss further limits the radiating path of the MOS tubes, the radiating effect of the improved technologies is very limited, and the processing and mounting procedures of the radiating shell are also complicated.
In addition, the disassembly and assembly processes of the heat dissipation structure of the conventional electric vehicle driving system are complicated, some heat dissipation fixing structures are disposable structures, and the heat dissipation fixing structures cannot be installed again after disassembly and assembly. Therefore, under such a background, it is significant to provide a heat dissipation structure of an electric vehicle drive system having an excellent heat dissipation effect and a simple process.
Disclosure of Invention
In view of this, the utility model aims at providing an electric motor car actuating system and two-wheeled electric motor car, the radiating effect is good, the heat dissipation is even and processing, installation and dismouting process are all very simple and convenient, and especially adapted batch production is used, can effectively satisfy the controller heat dissipation requirement of control direct current brushless motor operation simultaneously.
The utility model adopts the technical scheme as follows:
an electric vehicle driving system comprises a motor, a controller and a heat dissipation fixing structure which are connected in an electrified way; the motor is a direct-current brushless motor and comprises a stator component connected with a motor shaft into a whole, an outer rotor component connected with an electric vehicle hub into a whole, magnetically coupled with the stator component and coaxially outputting, a front end cover and a rear end cover which can be relatively rotatably arranged at two ends of the motor shaft through mounting bearings, and the front end cover and the rear end cover are respectively and fixedly connected with two sides of the outer rotor component; the heat dissipation fixing structure comprises a heat dissipation shell with an internal installation space, a circuit board of the controller is installed in the internal installation space, a plurality of MOS (metal oxide semiconductor) tubes are fixedly arranged on one side of the circuit board, and pins of the MOS tubes are fixedly arranged on the circuit board in a bending manner, so that the MOS tubes and the circuit board are in a parallel shape; the heat dissipation fixing structure comprises a silica gel strip, an iron pressing strip and a positioning cylindrical pin which are sequentially contacted with one another; one side surface of the MOS tube is in insulation connection with the bottom surface of the heat dissipation shell, and the other side surface of the MOS tube is in contact connection with the silica gel strip; and the positioning cylindrical pin is fixedly clamped on the inner side surface of the heat dissipation shell.
Preferably, the positioning cylindrical pin and the heat dissipation shell are made of aluminum materials; and the outer surface of the heat dissipation shell is provided with heat dissipation ribs.
Preferably, the inner side surface of the heat dissipation shell is provided with a clamping groove fixedly clamped with the positioning cylindrical pin; the silica gel strip is equipped with spacing recess, the iron layering is spacing be in the spacing recess.
Preferably, the heat dissipation shell is internally provided with a first mounting groove and a second mounting groove, and two sides of the circuit board are respectively limited in the first mounting groove and the second mounting groove.
Preferably, an insulating film is arranged between one side surface of the MOS transistor and the bottom surface of the heat dissipation housing.
Preferably, the outer side of the rear end cover is fixedly connected with a protective cover plate, the protective cover plate can be sleeved on the periphery of the motor shaft in a relatively rotating manner, and the section of the protective cover plate is in an umbrella shape extending along the axial outer side.
Preferably, a plurality of convex blade edges distributed at intervals in the circumferential direction are integrally extended from the inner side of the protective cover plate, the convex blade edges are fixedly pressed on the inner wall of the rear end cover, the fixed connection mode is simple and reliable, and a space which is favorable for air flow is formed between the rear end cover and the protective cover plate due to the design of the convex blade edges, so that when the direct-current brushless motor rotates to work, the space can timely transmit heat generated by the direct-current brushless motor outwards; further preferably, a plurality of protection chimbs that are circumference interval distribution are extended to the integrative extension of protection apron terminal surface, the protection chimb is located the rear end cap periphery, the utility model discloses the design of protection chimb not only can further play waterproof and including dustproof, prevent protective properties such as external force striking, more importantly for when DC brushless motor rotary work, play the good radiating effect to DC brushless motor.
Preferably, the surface of the protective cover plate is provided with a reinforcing boss.
Preferably, the stator assembly comprises a stator core, a stator winding positioned in the stator slot, and a hall assembly electrically connected with the electric vehicle controller, wherein 45 or 48 stator teeth are uniformly distributed on the outer circumference of the stator core, and the stator slot is formed between every two adjacent stator teeth; the stator core is fixedly connected with the motor shaft through the stator frame, so that the efficiency of the direct-current brushless motor can be effectively improved, and a wider speed regulation range can be obtained.
Preferably, the two-wheeled electric vehicle comprises two wheels, a driving system and an assembling frame for assembling the two wheels and the driving system into a whole, wherein the driving system adopts the electric vehicle driving system.
The utility model provides an electric motor car actuating system heat dissipation fixed knot to adopting DC brushless motor constructs, specifically adopts silica gel strip, indisputable layering, the location cylindric lock of mutual contact connection as heat dissipation fixed knot to construct, under the prerequisite that the assurance radiating effect is good, the heat dissipation is even, the utility model provides a processing, installation and dismouting process of heat dissipation fixed knot construct are all very simple and convenient, and especially adapted batch production is used, can effectively satisfy the controller heat dissipation requirement of control DC brushless motor operation.
The utility model discloses still further propose setting up the protective cover plate that is the umbrella type shape at the rear end cap of DC brushless motor, the applicant is verified through implementing, the protective cover plate that is the umbrella type shape can improve the waterproof of motor effectively and including dustproof, prevent protective properties such as external force striking, do benefit to the air convection heat dissipation simultaneously, effectively lengthened the utility model discloses electric motor car actuating system's life; the utility model discloses still further provide the design of convex leaf limit and protection chimb, can further effectively ensure the abundant heat dissipation to DC brushless motor.
Drawings
Fig. 1 is a schematic diagram of a module connection structure of an electric vehicle driving system according to the present invention;
FIG. 2 is a cross-sectional view of a motor according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a stator assembly 20 according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of FIG. 3;
FIG. 5 is an enlarged view of the structure at A in FIG. 4;
fig. 6 is a cross-sectional view of a lower outer rotor assembly 40 according to an embodiment of the present invention;
fig. 7 is a sectional view of a heat dissipation fixing structure of an electric vehicle driving system according to an embodiment of the present invention.
Detailed Description
The embodiment of the utility model discloses an electric vehicle driving system, which comprises a motor, a controller and a heat dissipation fixing structure which are connected in a power-on manner; the motor is a direct-current brushless motor and comprises a stator component connected with a motor shaft into a whole, an outer rotor component connected with a hub of the electric vehicle into a whole, magnetically coupled with the stator component and coaxially output, a front end cover and a rear end cover which can be relatively rotatably arranged at two ends of the motor shaft through mounting bearings, and the front end cover and the rear end cover are respectively fixedly connected with two sides of the outer rotor component; the heat dissipation fixing structure comprises a heat dissipation shell with an internal installation space, a circuit board of the controller is installed in the internal installation space, a plurality of MOS (metal oxide semiconductor) tubes are fixedly arranged on one side of the circuit board, and pins of the MOS tubes are fixedly arranged on the circuit board in a bending manner, so that the MOS tubes and the circuit board are parallel; the heat dissipation fixing structure comprises a silica gel strip, an iron pressing strip and a positioning cylindrical pin which are sequentially contacted with each other; one side surface of the MOS tube is in insulation connection with the bottom surface of the radiating shell, and the other side surface of the MOS tube is in contact connection with the silica gel strip; the positioning cylindrical pin is fixedly clamped on the inner side surface of the heat dissipation shell.
The embodiment of the utility model provides a two-wheeled electric motor car is still disclosed, including two wheels, actuating system and assemble two wheels and actuating system equipment frame as an organic whole, wherein, actuating system adopts as above electric motor car actuating system.
The embodiment of the utility model provides a to the electric motor car actuating system heat dissipation fixed knot who adopts DC brushless motor constructs, specifically adopts silica gel strip, iron layering, the location cylindric lock of mutual contact connection as heat dissipation fixed knot to construct, under the prerequisite that the assurance radiating effect is good, the heat dissipation is even, the embodiment of the utility model provides a processing, installation and the dismouting process of heat dissipation fixed knot structure all are very simple and convenient, and especially adapted batch production is used, can effectively satisfy the controller heat dissipation requirement of control DC brushless motor operation.
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below 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, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
Referring to fig. 1, an electric vehicle driving system includes a motor, a controller and a heat dissipation fixing structure (not shown in fig. 1) which are electrically connected; the motor is a dc brushless motor, please further refer to the dc brushless motor 1 shown in fig. 2, which includes a stator assembly 20 connected with the motor shaft 10 as a whole, an outer rotor assembly 40 connected with the electric vehicle hub 30 as a whole, magnetically coupled with the stator assembly 20 and coaxially outputting, a front end cap 50 and a rear end cap 60 installed at two ends of the motor shaft 10 through bearings (shown in fig. 2 but not labeled) in a relatively rotatable manner, the front end cap 50 and the rear end cap 60 are respectively and fixedly connected with two sides of the outer rotor assembly 40, a protective cover plate 70 is fixedly connected to an outer side of the rear end cap 60, the protective cover plate 70 is relatively rotatably sleeved on an outer periphery of the motor shaft 10, wherein a cross section of the protective cover plate 70 is in an umbrella shape extending along an axial outer side. Preferably, in the present embodiment, a plurality of circumferentially spaced convex blades 71 integrally extend from the inner side of the protective cover plate 70, and the convex blades 71 are fixedly pressed into the inner wall of the rear end cap 60. Preferably, in the present embodiment, a plurality of protection flanges 72 circumferentially spaced apart from each other extend integrally from the end surface of the protection cover plate 70, and the protection flanges 72 are located at the periphery of the rear end cover 60. Preferably, in the present embodiment, the plate surface of the protective cover plate 70 is provided with a reinforcing boss 73.
Referring to fig. 3, 4 and 5, the stator assembly 20 includes a stator core 21 formed by laminating a plurality of stator laminations, a stator winding (not shown) located in the stator slot 22, and a hall assembly (not shown) electrically connected to the electric vehicle controller, wherein 48 stator teeth 24 are uniformly distributed on an outer circumference of the stator core 21, the stator slot 22 is formed between every two adjacent stator teeth 24, and of course, in other embodiments of the present invention, 45 stator teeth are uniformly distributed on an outer circumference of the stator core 21; the stator core 21 is fixedly connected with the motor shaft 10 through a stator frame, specifically, in the present embodiment, the stator frame includes a stator frame body 25 and a fixing sleeve 26 which are welded into a whole, a knurl 14 is provided at the center of the motor shaft 10, and the knurl 14 is connected with the fixing sleeve 26 in an interference fit manner; the stator punching sheet comprises 48 stator slots 22, and positioning concave points are respectively and coaxially arranged on the upper surface and the lower surface of the stator punching sheet; the external diameter scope of stator punching is 190-.
Referring to fig. 6, the outer rotor assembly 40 includes a yoke ring 42 and a plurality of permanent magnet steels (not shown) disposed at regular intervals on an inner side of the yoke ring, a front end cover 50 and a rear end cover 60 are respectively fixed on the yoke ring 42 by screws 41, and the yoke ring 42 is integrally connected with the electric vehicle hub 30.
Referring to fig. 7, the heat dissipation fixing structure 100 includes a heat dissipation housing 120 having an internal installation space 110, and a circuit board 130 of a controller is installed in the internal installation space 110, preferably, in the present embodiment, a first installation groove 121 and a second installation groove 122 are provided inside the heat dissipation housing 120, and two sides of the circuit board 130 are respectively limited in the first installation groove 121 and the second installation groove 122;
in this embodiment, a plurality of MOS transistors 140 are fixedly disposed on one side of the circuit board 130, and the pins of the MOS transistors 140 are fixedly disposed on the circuit board 130 in a bent manner, so that the MOS transistors 140 and the circuit board 130 are parallel; the heat dissipation fixing structure 100 further comprises a silica gel strip 151, an iron pressing strip 152 and a positioning cylindrical pin 153 which are sequentially contacted with each other; one side surface of the MOS tube 140 is connected to the bottom surface of the heat dissipation housing 120 in an insulating manner, and the other side surface thereof is connected to the silicone strip 151 in a contact manner; the positioning cylindrical pin 153 is fixedly engaged with the inner surface of the heat dissipation case 120.
Preferably, in order to ensure the heat dissipation effect of the electric vehicle driving system, in the present embodiment, the positioning cylindrical pin 153 and the heat dissipation housing 120 are prepared using aluminum materials. Further preferably, in this embodiment, the heat dissipation ribs 123 are disposed on the outer surface of the heat dissipation housing 120, so as to effectively increase the heat dissipation area and further improve the heat dissipation effect, and the specific shape and size of the heat dissipation ribs 121 can be set according to actual needs.
Preferably, in the present embodiment, the inner side surface of the heat dissipation housing 120 is provided with the engaging groove 124 which is fixedly engaged with the positioning cylindrical pin 153, so that the fixing effect is good, and the mounting and dismounting process is very simple.
Preferably, in this embodiment, the silica gel strip 151 is equipped with spacing recess 151a, and iron layering 152 is spacing in spacing recess 151a, further does benefit to the utility model discloses a fixed spacing effect.
Preferably, in the present embodiment, an insulating film (not shown) is provided between one side surface of the MOS transistor 140 and the bottom surface of the heat dissipation case 120, so as to ensure an insulating effect between the MOS transistor 140 and the heat dissipation case 120.
The embodiment also discloses a two-wheeled electric vehicle which comprises two wheels, a driving system and an assembling frame for assembling the two wheels and the driving system into a whole, wherein the driving system adopts the electric vehicle driving system.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. An electric vehicle driving system comprises a motor, a controller and a heat dissipation fixing structure which are connected in an electrified way; the motor is a direct-current brushless motor and comprises a stator component connected with a motor shaft into a whole, an outer rotor component connected with an electric vehicle hub into a whole, magnetically coupled with the stator component and coaxially outputting, a front end cover and a rear end cover which can be relatively rotatably arranged at two ends of the motor shaft through mounting bearings, and the front end cover and the rear end cover are respectively and fixedly connected with two sides of the outer rotor component; the heat dissipation fixing structure comprises a heat dissipation shell with an internal installation space, a circuit board of the controller is installed in the internal installation space, one side of the circuit board is fixedly provided with a plurality of MOS tubes, and the heat dissipation fixing structure is characterized in that,
the pins of the MOS tube are fixedly arranged on the circuit board in a bending way, so that the MOS tube and the circuit board are parallel; wherein,
the heat dissipation fixing structure comprises a silica gel strip, an iron pressing strip and a positioning cylindrical pin which are sequentially contacted with each other; one side surface of the MOS tube is in insulation connection with the bottom surface of the heat dissipation shell, and the other side surface of the MOS tube is in contact connection with the silica gel strip; and the positioning cylindrical pin is fixedly clamped on the inner side surface of the heat dissipation shell.
2. The electric vehicle drive system of claim 1, wherein the positioning cylinder pin and the heat-dissipating housing are made of aluminum material; and the outer surface of the heat dissipation shell is provided with heat dissipation ribs.
3. The electric vehicle driving system of claim 1, wherein a fastening groove for fixedly fastening with the positioning cylindrical pin is formed on an inner side surface of the heat dissipation housing; the silica gel strip is equipped with spacing recess, the iron layering is spacing be in the spacing recess.
4. The electric vehicle driving system of claim 1, wherein a first mounting groove and a second mounting groove are formed in the heat dissipating housing, and both sides of the circuit board are respectively limited in the first mounting groove and the second mounting groove.
5. The electric vehicle driving system according to claim 1, wherein an insulating film is provided between a side surface of the MOS transistor and the bottom surface of the heat dissipating case.
6. The electric vehicle driving system as claimed in claim 1, wherein a protective cover is fixedly connected to an outer side of the rear cover, the protective cover is relatively rotatably fitted around an outer periphery of the motor shaft, and a cross-section of the protective cover has an umbrella shape extending along an axially outer side.
7. The electric vehicle driving system of claim 6, wherein a plurality of circumferentially spaced raised beads integrally extend from the inner side of the protective cover plate, and the raised beads are fixedly pressed into the inner wall of the rear end cover; a plurality of protection chimbs that are circumference interval distribution are extended to the integrative protection apron terminal surface, the protection chimb is located the rear end cap periphery.
8. The electric vehicle drive system of claim 6, wherein the plate surface of the protective cover plate is provided with a reinforcing boss.
9. The electric vehicle driving system of claim 6, wherein the stator assembly comprises a stator core, stator windings positioned in stator slots, and a hall assembly electrically connected with the electric vehicle controller, wherein 45 or 48 stator teeth are uniformly distributed on the outer circumference of the stator core, and the stator slots are formed between every two adjacent stator teeth; the stator core is fixedly connected with the motor shaft through a stator frame.
10. A two-wheeled electric vehicle comprising two wheels, a drive system and an assembly frame for integrally assembling the two wheels and the drive system, wherein the drive system is the drive system of the electric vehicle according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721354144.2U CN207595183U (en) | 2017-10-20 | 2017-10-20 | A kind of drive system of electric motor vehicle and electric motor car with two wheels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721354144.2U CN207595183U (en) | 2017-10-20 | 2017-10-20 | A kind of drive system of electric motor vehicle and electric motor car with two wheels |
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| Publication Number | Publication Date |
|---|---|
| CN207595183U true CN207595183U (en) | 2018-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721354144.2U Expired - Fee Related CN207595183U (en) | 2017-10-20 | 2017-10-20 | A kind of drive system of electric motor vehicle and electric motor car with two wheels |
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| Country | Link |
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| CN (1) | CN207595183U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107856801A (en) * | 2017-10-20 | 2018-03-30 | 台州赛盈电机科技有限公司 | A kind of drive system of electric motor vehicle and electric motor car with two wheels |
-
2017
- 2017-10-20 CN CN201721354144.2U patent/CN207595183U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107856801A (en) * | 2017-10-20 | 2018-03-30 | 台州赛盈电机科技有限公司 | A kind of drive system of electric motor vehicle and electric motor car with two wheels |
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Granted publication date: 20180710 |