CN109194039A - A kind of motor shaft current eliminates structure and motor - Google Patents
A kind of motor shaft current eliminates structure and motor Download PDFInfo
- Publication number
- CN109194039A CN109194039A CN201811160185.7A CN201811160185A CN109194039A CN 109194039 A CN109194039 A CN 109194039A CN 201811160185 A CN201811160185 A CN 201811160185A CN 109194039 A CN109194039 A CN 109194039A
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- China
- Prior art keywords
- graphite rod
- shaft
- motor
- elastic sheet
- mounting hole
- Prior art date
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 129
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 129
- 239000010439 graphite Substances 0.000 claims abstract description 129
- 229910000906 Bronze Inorganic materials 0.000 claims description 5
- 239000010974 bronze Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/0094—Structural association with other electrical or electronic devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The present invention relates to a kind of motor shaft currents to eliminate structure and motor.It includes back shroud, graphite rod and at least one conductive elastic component that the motor shaft current, which eliminates structure, the back shroud can be connected electrically on the shell of motor, the graphite rod can be placed in the graphite rod mounting hole of machine shaft, the conductive elastic component is power spring and/or electroconductive elastic sheet, the graphite rod directs or through electroconductive elastic sheet and is electrically connected with back shroud, and the graphite rod can direct or through power spring and be electrically connected with machine shaft.The embodiment of the present invention it is compact-sized, simple, it is at low cost；Graphite rod and the elastomeric element of conduction are not affected by the external environment inside motor, and when operation does not generate noise, conductive reliable.
Description
Technical field
The invention belongs to technical field of motors, and in particular to a kind of motor shaft current eliminates structure and motor.
Background technique
With the fast development of electric vehicle engineering, to the driving motor of electric car, more stringent requirements are proposed.And it is electric
Machine generally can all generate shaft current, and shaft current is the electric current for flowing through machine shaft, bearing to casing.In the actual use of motor
In, shaft current can wound bearing, will lead to the galvano-cautery lines that a plurality of arranged in parallel is formed on bearing internal external circle raceway for a long time, together
When lead to that motor operating noise is big, motor bearings temperature increases and premature failure.
The reason of driving motor generation shaft current of electric car, specifically includes that magnetic circuit and circuit are not in 1) electric machine structure
Symmetrically cause magnetic flux asymmetric；2) high speed rotary grinding occurs with air when rotor works and generates electrostatic charge, electrostatic charge
It can not discharge and gradually accumulate；3) shaft voltage and shaft current that motor is introduced using frequency control.
The method of traditional elimination motor shaft current includes using insulation bearing, is eliminated alternatively, installing additional in motor output shaft end
The hair carbon brush of shaft current.But the above-mentioned problems of the prior art is: insulation bearing is expensive, is added significantly to motor cost；
The motor volume for being arranged hair carbon brush is big, high noise, and when encountering external dust or silt pollution, the insulation resistance of hair carbon brush increases,
Electric conductivity is caused to be deteriorated, and hairbrush easily falls off with the lengthening for using the time, influences shaft current eradicating efficacy.
Summary of the invention
In order to solve, above-mentioned electric machine structure is complicated, volume is big and technology that is being weakened for a long time using shaft current eradicating efficacy
Problem, the embodiment of the present invention propose a kind of motor shaft current and eliminate structure and motor.
The motor shaft current eliminates structure, including back shroud, graphite rod and at least one conductive elastic component, after described
Cover board can be connected electrically on the shell of motor, and the graphite rod can be placed in the graphite rod mounting hole of machine shaft,
The conductive elastic component be power spring and/or electroconductive elastic sheet,
The graphite rod is directly electrically connected with back shroud, and the graphite rod can be electrically connected by power spring and machine shaft
It connects, alternatively,
The graphite rod is electrically connected by electroconductive elastic sheet with back shroud, and the graphite rod can directly be electrically connected with machine shaft
It connects, alternatively,
The graphite rod is electrically connected by electroconductive elastic sheet with back shroud, and the graphite rod can pass through power spring and motor
Shaft electrical connection.
Further, the conductive elastic component be power spring and electroconductive elastic sheet,
The power spring and graphite rod can be placed sequentially in the graphite rod mounting hole of machine shaft, the conduction bullet
One end of spring can be pressed in graphite rod mounting hole, and the outside of the other end towards the graphite rod mounting hole of the power spring is supported
The first end of graphite rod is pressed, the second end of the graphite rod can stretch out the graphite rod mounting hole；
The first end electrical connection of the electroconductive elastic sheet is fixed on the inside of the back shroud, and the second end of electroconductive elastic sheet is certainly
By holding, the second end of the electroconductive elastic sheet compresses the second end of the graphite rod along the axial direction of shaft.
Further, the conductive elastic component is power spring,
The power spring and graphite rod can be sequentially placed into the graphite rod mounting hole of machine shaft, the power spring
One end can be pressed in graphite rod mounting hole, the other end of the power spring is towards compressing on the outside of graphite rod mounting hole
The first end of graphite rod, the second end of graphite rod can stretch out the graphite rod mounting hole and be pressed on the inside of the back shroud
On.
Further, the conductive elastic component is electroconductive elastic sheet,
The first end of the graphite rod can be pressed in the graphite rod mounting hole of machine shaft, the second end energy of graphite rod
Enough stretch out the graphite rod mounting hole；
The first end electrical connection of the electroconductive elastic sheet is fixed on the inside of the back shroud, and the second end of electroconductive elastic sheet is certainly
By holding, the second end of the electroconductive elastic sheet compresses the second end of the graphite rod along the axial direction of shaft.
Further, the second end of the graphite rod is in coniform or pyramidal.
Further, the second end of the graphite rod is in coniform or pyramidal, the electroconductive elastic sheet and the graphite rod
The raised plane in the part of second end in contact.
Further, the electroconductive elastic sheet is Z-shape, by beryllium-bronze material punch forming；The power spring is copper spring.
The embodiment of the invention also includes it is a kind of with shaft current eliminate structure motor, the motor include shell, stator,
Rotor, shaft, bearing and motor shaft current as described above eliminate structure,
The shaft for being fixedly installed with rotor is rotatably installed on the housing by bearing, the rear end of the shaft
It is exposed to shell, the stator is opposite with the rotor in shaft to be arranged on the inner surface of the housing sidewall；
Graphite rod mounting hole is offered on the end face of the rear end of shaft；
The shell of the motor is conductive material, has ground terminal.
Further, the shell includes side wall, the drive end bearing bracket and rear end cap that side wall both ends are arranged in, and both ends of the shaft passes through axis
It holds and is mounted on the drive end bearing bracket and rear end cap, the rear end of shaft is exposed to the hole of rear end cap, and the motor shaft current is eliminated
The back shroud of structure is fixed on the rear end cap of the shell of motor, and the side wall of the shell is connect with stator interference.
Further, graphite rod mounting hole, the graphite are axially opened up along shaft on the end face of the rear end of the shaft
The axis of stick mounting hole is overlapped with the axis of shaft.
Beneficial effects of the present invention: the motor shaft current that the embodiment of the present invention proposes eliminates structure and motor, graphite rod peace
In the hole of shaft end, do not increase motor volume additionally, so that electric machine structure is compact, structure is simple, at low cost；Graphite rod
And conductive elastomeric element is not affected by the external environment inside motor, it is conductive reliable.The motor shaft of the embodiment of the present invention
Electric current, which eliminates structure and motor, need not use expensive insulating ceramics bearing, not generate noise, while stone in motor operation course
Inker and electroconductive elastic sheet have self-lubricating effect when rubbing.
In the further embodiment of the embodiment of the present invention, make shaft current stream by applying an axial force to graphite rod
Each member in tight contact of road all, insulation resistance is low, and conductive effect is good；Electroconductive elastic sheet connects with graphite rod center
Touching, linear velocity is very low, and the abrasion of graphite rod is small when shaft rotates, and electroconductive elastic sheet material uses beryllium-bronze, good conductivity and wear-resisting
Damage.
Detailed description of the invention
Fig. 1 is the sectional view for the motor that structure is eliminated with shaft current that the embodiment of the present invention proposes；
Fig. 2 is the thin portion enlarged drawing that motor shaft current shown in FIG. 1 eliminates structure A.
Appended drawing reference: 1 shell；2 stators；3 rotors；4 shafts；5 bearings；6 back shrouds；7 electroconductive elastic sheets；8 graphite rods；9 lead
Electrical spring；
Shell 1:11 side wall；12 drive end bearing brackets；13 rear end caps；The hole of 131 rear end caps
The rear end shaft 4:41；42 graphite rod mounting holes.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.But as known to those skilled in the art, the invention is not limited to attached drawings and following reality
Apply example.
In embodiments of the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower " is usually needle
For direction shown in the drawings, or on vertical, vertical or gravity direction；Similarly, for convenient for reason
Solution and description, " left and right " is usually for shown in the drawings left and right；" inside and outside " refers to the profile relative to each component itself
It is inside and outside, but the above-mentioned noun of locality is not intended to restrict the invention.
The embodiment of the present invention proposes a kind of motor that structure is eliminated with shaft current, as shown in Figure 1, 2, the motor packet
It includes shell 1, stator 2, rotor 3, shaft 4, bearing 5 and shaft current and eliminates structure A.The shell 1 includes side wall 11, is arranged in side
The drive end bearing bracket 12 and rear end cap 13 at 11 both ends of wall, the shaft 4 for being fixedly installed with rotor 4 are rotatably mounted on institute by bearing 5
It states on drive end bearing bracket 12 and rear end cap 13, table in the side wall 11 that the shell 1 is set opposite with the rotor 3 in shaft 4 of stator 2
The side wall 11 in face, the shell 1 is connect with 2 interference of stator.4 front end of shaft is stretched out from the drive end bearing bracket 12 of shell 1, for connecting
Driving part；The rear end 41 of shaft 4 is exposed to the hole 131 of rear end cap 13.Along shaft axis on the end face of the rear end of shaft 4
To offering graphite rod mounting hole 42.The shell 1 of the motor is conductive material, has ground terminal.
First embodiment:
The shaft current eliminates the rear portion that the shell 1 of motor is arranged in structure A, and the shell 1 of motor is specifically arranged in
The outside of rear end cap 13.It includes back shroud 6, electroconductive elastic sheet 7, graphite rod 8 and power spring 9 that the shaft current, which eliminates structure A,.
The back shroud 6 is connected electrically on the shell 1 of motor, and in the present embodiment, back shroud 6 is fixed on the shell of motor
On 1 rear end cap 13.
The power spring 9 and graphite rod 8 are sequentially placed into the graphite rod mounting hole 42 of machine shaft 4, power spring 9
One end is pressed in graphite rod mounting hole 42, and the outside of the other end towards the graphite rod mounting hole 42 of power spring 9 compresses graphite
The second end of the first end of stick 8, graphite rod 8 stretches out the graphite rod mounting hole 42.
The electroconductive elastic sheet 7 is Z-shape, and the first end of electroconductive elastic sheet 7 is for example fixed on the rear cover by screw electrical connection
The second end of the inside of plate 6, the electroconductive elastic sheet 7 is free end, and the second end of the graphite rod 8 is compressed along the axial direction of shaft 4,
It is clamped in what graphite rod 8 consolidated between power spring 9 and electroconductive elastic sheet 7.
Therefore, it is as follows to eliminate the shaft current conducting path that structure is formed for shaft current through this embodiment: rotor 3- shaft
4- power spring 9- graphite rod 8- electroconductive elastic sheet 7- back shroud 6- shell 1-, so as to avoid bearing from being wounded by shaft current.
The shaft current conducting path insulation resistance is low, and conduction is directly, rapidly and reliably.
As shown, the axis of the graphite rod mounting hole 42 is overlapped with the axis of shaft 4, graphite rod 8 is by power spring 9
And/or electroconductive elastic sheet 7 compresses and applies axial power, each member in tight contact, while will not tremble when the rotation of shaft 4
It is dynamic.
In addition, the second end of graphite rod 8 is in coniform or pyramidal.Also, electroconductive elastic sheet 7 is by good conductivity and wear-resisting
Beryllium-bronze punch forming, the raised plane in the part that electroconductive elastic sheet 7 is contacted with graphite rod 8.The power spring is copper bullet
Spring.What electroconductive elastic sheet 7 contacted is the central point position of graphite rod 8 as a result, and graphite rod 8 and back shroud 6 are reduced while conduction
Between friction.
Second embodiment:
Compared with first embodiment, it does not include electroconductive elastic sheet 7 that the shaft current in second embodiment, which eliminates structure A, and
Being includes back shroud 6, graphite rod 8 and power spring 9 (not shown).
The back shroud 6 is connected electrically on the shell 1 of motor.The power spring 9 and graphite rod 8 are sequentially placed into motor and turn
In the graphite rod mounting hole 42 of axis 4, one end of power spring 9 is pressed in graphite rod mounting hole 42, the other end of power spring 9
The first end of graphite rod 8 is compressed towards the outside of graphite rod mounting hole 42, the second end of graphite rod 8 stretches out the graphite rod installation
Hole 42 is simultaneously pressed on the inside of the back shroud 6.
Therefore, it is as follows to eliminate the shaft current conducting path that structure is formed for shaft current through this embodiment: rotor 3- shaft
4- power spring 9- graphite rod 8- back shroud 6- shell 1-, so as to avoid bearing from being wounded by shaft current.
As shown, the axis of the graphite rod mounting hole 42 is overlapped with the axis of shaft 4, graphite rod 8 is by power spring 9
It compresses and applies axial power, each member in tight contact, while will not be shaken when the rotation of shaft 4.
In addition, the second end of graphite rod 8 in coniform or pyramidal, is reduced between back shroud 6 while conduction
Friction.
3rd embodiment:
Compared with first embodiment, it does not include power spring 9 that the shaft current in 3rd embodiment, which eliminates structure A, and
Being includes back shroud 6, graphite rod 8 and electroconductive elastic sheet 7 (not shown).
The back shroud 6 is connected electrically on the shell 1 of motor.
The graphite rod 8 is put into the graphite rod mounting hole 42 of machine shaft 4, and the first end of graphite rod 8 is pressed on graphite
In stick mounting hole 42, the second end of graphite rod 8 stretches out the graphite rod mounting hole 42.
The electroconductive elastic sheet 7 is Z-shape, and the first end of electroconductive elastic sheet 7 is for example fixed on the rear cover by screw electrical connection
The second end of the inside of plate 6, the electroconductive elastic sheet 7 is free end, compresses the graphite towards the outside of graphite rod mounting hole 42
The second end of stick 8 is clamped in what graphite rod 8 consolidated between back shroud 6 and electroconductive elastic sheet 7.
Therefore, it is as follows to eliminate the shaft current conducting path that structure is formed for shaft current through this embodiment: rotor 3- shaft
4- graphite rod 8- electroconductive elastic sheet 7- back shroud 6- shell 1-, it is wounded so as to bearing by shaft current.
As shown, the axis of the graphite rod mounting hole 42 is overlapped with the axis of shaft 4, graphite rod 8 is by electroconductive elastic sheet 7
It compresses and applies axial power, each member in tight contact, while will not be shaken when the rotation of shaft 4.
In addition, the second end of graphite rod 8 is in coniform or pyramidal.Also, electroconductive elastic sheet 7 is by good conductivity and wear-resisting
Beryllium-bronze punch forming, the raised plane in electroconductive elastic sheet part contacted with graphite rod 8.Electroconductive elastic sheet 7 contacts as a result,
It is the central point position of graphite rod 8, the friction between graphite rod 8 and back shroud 6 is reduced while conduction.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
More than, embodiments of the present invention are illustrated.But the present invention is not limited to above embodiment.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention
Within the scope of shield.
Claims (10)
1. a kind of motor shaft current eliminates structure, it is characterised in that: including back shroud, graphite rod and at least one electrically conductive elastic portion
Part, the back shroud can be connected electrically on the shell of motor, and the graphite rod can be placed at the graphite rod peace of machine shaft
It fills in hole,
The conductive elastic component is power spring, and the graphite rod is directly electrically connected with back shroud, and the graphite rod can lead to
Power spring is crossed to be electrically connected with machine shaft, alternatively,
The conductive elastic component is electroconductive elastic sheet, and the graphite rod is electrically connected by electroconductive elastic sheet with back shroud, the graphite
Stick can be directly electrically connected with machine shaft, alternatively,
The conductive elastic component is power spring and electroconductive elastic sheet, and the graphite rod is electrically connected by electroconductive elastic sheet and back shroud
It connects, the graphite rod can be electrically connected by power spring with machine shaft.
2. motor shaft current as described in claim 1 eliminates structure, it is characterised in that: the conductive elastic component is conductive bullet
Spring and electroconductive elastic sheet,
The power spring and graphite rod can be placed sequentially in the graphite rod mounting hole of machine shaft, the power spring
One end can be pressed in graphite rod mounting hole, and the other end of the power spring is towards compressing stone on the outside of graphite rod mounting hole
The first end of inker, the second end of the graphite rod can stretch out the graphite rod mounting hole；
The first end electrical connection of the electroconductive elastic sheet is fixed on the inside of the back shroud, and the second end of electroconductive elastic sheet is freely
End, the second end of the electroconductive elastic sheet compress the second end of the graphite rod along the axial direction of shaft.
3. motor shaft current as described in claim 1 eliminates structure, it is characterised in that: the conductive elastic component is conductive bullet
Spring,
The power spring and graphite rod can be sequentially placed into the graphite rod mounting hole of machine shaft, and the one of the power spring
End can be pressed in graphite rod mounting hole, and the other end of the power spring is towards compressing graphite on the outside of graphite rod mounting hole
The first end of stick, the second end of graphite rod can stretch out the graphite rod mounting hole and be pressed on the inside of the back shroud.
4. motor shaft current as described in claim 1 eliminates structure, it is characterised in that: the conductive elastic component is conductive bullet
Piece,
The first end of the graphite rod can be pressed in the graphite rod mounting hole of machine shaft, and the second end of graphite rod can stretch
The graphite rod mounting hole out；
The first end electrical connection of the electroconductive elastic sheet is fixed on the inside of the back shroud, and the second end of electroconductive elastic sheet is freely
End, the second end of the electroconductive elastic sheet compress the second end of the graphite rod along the axial direction of shaft.
5. the motor shaft current as described in one of claim 1-4 eliminates structure, it is characterised in that: the second end of the graphite rod
In coniform or pyramidal.
6. motor shaft current as claimed in claim 2 or 4 eliminates structure, it is characterised in that: the second end of the graphite rod is in
It is coniform or pyramidal, the raised plane in part of the second end in contact of the electroconductive elastic sheet and the graphite rod.
7. motor shaft current as claimed in claim 2 or 4 eliminates structure, it is characterised in that: the electroconductive elastic sheet is Z-shape, by
Beryllium-bronze material punch forming；The power spring is copper spring.
8. a kind of motor for eliminating structure with shaft current, it is characterised in that: the motor includes shell, stator, rotor, turns
Axis, bearing and the motor shaft current as described in one of claim 1-7 eliminate structure,
The shaft for being fixedly installed with rotor is rotatably installed on the housing by bearing, and the rear end of the shaft is exposed
In shell, the stator is opposite with the rotor in shaft to be arranged on the inner surface of the housing sidewall；
Graphite rod mounting hole is offered on the end face of the rear end of shaft；
The shell of the motor is conductive material, has ground terminal.
9. as claimed in claim 8 with shaft current eliminate structure motor, it is characterised in that: the shell include side wall,
The drive end bearing bracket and rear end cap at side wall both ends are set, and both ends of the shaft is mounted on the drive end bearing bracket and rear end cap by bearing, is turned
The rear end of axis is exposed to the hole of rear end cap, after the back shroud that the motor shaft current eliminates structure is fixed on the shell of motor
On end cap, the side wall of the shell is connect with stator interference.
10. the motor of structure is eliminated with shaft current as claimed in claim 8, it is characterised in that: in the rear end of the shaft
Graphite rod mounting hole is axially opened up on the end face in portion along shaft, the axis of the graphite rod mounting hole is overlapped with the axis of shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811160185.7A CN109194039A (en) | 2018-09-30 | 2018-09-30 | A kind of motor shaft current eliminates structure and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811160185.7A CN109194039A (en) | 2018-09-30 | 2018-09-30 | A kind of motor shaft current eliminates structure and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109194039A true CN109194039A (en) | 2019-01-11 |
Family
ID=64946476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811160185.7A Pending CN109194039A (en) | 2018-09-30 | 2018-09-30 | A kind of motor shaft current eliminates structure and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109194039A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111289896A (en) * | 2020-02-11 | 2020-06-16 | 威睿电动汽车技术(宁波)有限公司 | Electrical property measuring device based on motor |
| CN112186975A (en) * | 2019-07-02 | 2021-01-05 | 中车株洲电力机车研究所有限公司 | Motor shaft current eliminating structure and motor |
| CN112572144A (en) * | 2020-12-08 | 2021-03-30 | 华为技术有限公司 | Motor, power assembly and vehicle |
| CN112701824A (en) * | 2020-12-25 | 2021-04-23 | 华为技术有限公司 | Motor rotor, motor and vehicle |
| CN113949222A (en) * | 2021-09-15 | 2022-01-18 | 浙江中车尚驰电气有限公司 | Variable frequency motor shaft current protective structure |
| CN113949219A (en) * | 2021-09-15 | 2022-01-18 | 浙江中车尚驰电气有限公司 | Combined type conductive device of motor shaft current protection structure |
| CN114337121A (en) * | 2021-12-20 | 2022-04-12 | 重庆长安新能源汽车科技有限公司 | Driving motor and electric automobile |
| WO2023155418A1 (en) * | 2022-02-15 | 2023-08-24 | 上海纳铁福传动系统有限公司 | Electric brush device for preventing electrical corrosion of motor bearing, and motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000102219A (en) * | 1998-09-28 | 2000-04-07 | Mitsubishi Electric Corp | Device for preventing axial current of electric motor or blower |
| JP2011135722A (en) * | 2009-12-25 | 2011-07-07 | Nsk Ltd | Electrolytic-corrosion preventing unit for wheel driving device, and wheel driving device |
| CN203942405U (en) * | 2014-06-14 | 2014-11-12 | 大洋电机新动力科技有限公司 | A kind of motor that effectively prevents shaft current ablation bearing |
| CN104821691A (en) * | 2015-04-23 | 2015-08-05 | 广东威灵电机制造有限公司 | Motor bearing electric corrosion-prevention structure and plastic packaging brushless direct current motor |
| CN107947492A (en) * | 2016-10-13 | 2018-04-20 | 上海大郡动力控制技术有限公司 | Eliminate the structure of motor shaft current |
| CN208862699U (en) * | 2018-09-30 | 2019-05-14 | 广州小鹏汽车科技有限公司 | A kind of motor shaft current eliminates structure and motor |
-
2018
- 2018-09-30 CN CN201811160185.7A patent/CN109194039A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000102219A (en) * | 1998-09-28 | 2000-04-07 | Mitsubishi Electric Corp | Device for preventing axial current of electric motor or blower |
| JP2011135722A (en) * | 2009-12-25 | 2011-07-07 | Nsk Ltd | Electrolytic-corrosion preventing unit for wheel driving device, and wheel driving device |
| CN203942405U (en) * | 2014-06-14 | 2014-11-12 | 大洋电机新动力科技有限公司 | A kind of motor that effectively prevents shaft current ablation bearing |
| CN104821691A (en) * | 2015-04-23 | 2015-08-05 | 广东威灵电机制造有限公司 | Motor bearing electric corrosion-prevention structure and plastic packaging brushless direct current motor |
| CN107947492A (en) * | 2016-10-13 | 2018-04-20 | 上海大郡动力控制技术有限公司 | Eliminate the structure of motor shaft current |
| CN208862699U (en) * | 2018-09-30 | 2019-05-14 | 广州小鹏汽车科技有限公司 | A kind of motor shaft current eliminates structure and motor |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112186975A (en) * | 2019-07-02 | 2021-01-05 | 中车株洲电力机车研究所有限公司 | Motor shaft current eliminating structure and motor |
| CN112186975B (en) * | 2019-07-02 | 2022-05-06 | 中车株洲电力机车研究所有限公司 | Motor shaft current eliminating structure and motor |
| CN111289896A (en) * | 2020-02-11 | 2020-06-16 | 威睿电动汽车技术(宁波)有限公司 | Electrical property measuring device based on motor |
| CN112572144B (en) * | 2020-12-08 | 2023-03-10 | 华为数字能源技术有限公司 | Motor, power assembly and vehicle |
| CN112572144A (en) * | 2020-12-08 | 2021-03-30 | 华为技术有限公司 | Motor, power assembly and vehicle |
| US12113421B2 (en) | 2020-12-08 | 2024-10-08 | Huawei Digital Power Technologies Co., Ltd. | Motor, powertrain, and vehicle |
| EP4012902A1 (en) * | 2020-12-08 | 2022-06-15 | Huawei Digital Power Technologies Co., Ltd. | Motor, powertrain, and vehicle |
| WO2022121807A1 (en) * | 2020-12-08 | 2022-06-16 | 华为数字能源技术有限公司 | Motor, power assembly, and vehicle |
| CN112701824A (en) * | 2020-12-25 | 2021-04-23 | 华为技术有限公司 | Motor rotor, motor and vehicle |
| US11863029B2 (en) | 2020-12-25 | 2024-01-02 | Huawei Digital Power Technologies Co., Ltd. | Motor rotor, motor, and vehicle |
| CN112701824B (en) * | 2020-12-25 | 2022-06-14 | 华为数字能源技术有限公司 | Motor rotor, motor and vehicle |
| CN113949222A (en) * | 2021-09-15 | 2022-01-18 | 浙江中车尚驰电气有限公司 | Variable frequency motor shaft current protective structure |
| CN113949219B (en) * | 2021-09-15 | 2024-01-30 | 浙江中车尚驰电气有限公司 | Combined type conductive device of motor shaft current protection structure |
| CN113949219A (en) * | 2021-09-15 | 2022-01-18 | 浙江中车尚驰电气有限公司 | Combined type conductive device of motor shaft current protection structure |
| CN114337121A (en) * | 2021-12-20 | 2022-04-12 | 重庆长安新能源汽车科技有限公司 | Driving motor and electric automobile |
| WO2023155418A1 (en) * | 2022-02-15 | 2023-08-24 | 上海纳铁福传动系统有限公司 | Electric brush device for preventing electrical corrosion of motor bearing, and motor |
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