CN207782102U - Electric machine assembly and commutator - Google Patents
Electric machine assembly and commutator Download PDFInfo
- Publication number
- CN207782102U CN207782102U CN201721731564.8U CN201721731564U CN207782102U CN 207782102 U CN207782102 U CN 207782102U CN 201721731564 U CN201721731564 U CN 201721731564U CN 207782102 U CN207782102 U CN 207782102U
- Authority
- CN
- China
- Prior art keywords
- commutator
- electric machine
- motor shaft
- coil windings
- machine assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Motor Or Generator Current Collectors (AREA)
Abstract
The utility model discloses electric machine assembly and commutator.Commutator is tubular element, and the oil storage hole of blind hole form is provided on the bottom end face of pipe.Electric machine assembly includes above-mentioned commutator, coil windings, motor shaft, commutator and coil windings are assemblied on motor shaft successively along the direction from the bottom of electric machine assembly to top, a pair of of contact electrical connection corresponding with commutator, the inside pipe wall of wherein commutator are sealed against the peripheral surface of motor shaft to each winding joint of coil windings respectively.The utility model does not need traditional independent oil sealing, eliminates the step of installing oil sealing, therefore reduces manufacturing cost, and reduces the axial space needed for motor.
Description
Technical field
The utility model is related to motor fields.Specifically, the utility model is related to vehicular electric machine component and motor commutations
Device.
Background technology
Fig. 1 shows a kind of traditional electric machine assembly 1, including oil sealing 10, commutator 20, coil windings 30, motor shaft 40,
Commutator 20 and coil windings 30 are assemblied in motor around motor shaft 40 successively along the direction from the bottom of electric machine assembly to top
On axis 40.It is mounted with that multiple commutation contacts to insulate each other, each winding of coil windings 30 connect on the periphery of commutator 20
Head a pair of of contact electrical connection corresponding with commutator respectively.In order to keep commutator not by lubricating oil and/or lubricating grease and
Dust pollutes, and oil sealing 10 is required.
Due to needing that oil sealing is arranged, need individual processing step that oil sealing is press-fitted on motor shaft to seal, this makes
At additional manufacturing cost, and increase the axial space needed for motor.Therefore, it is necessary to a kind of improved vehicle electrical units
Part.
Invention content
The purpose of the utility model is to overcome the disadvantages mentioned above of current vehicular electric machine component.
It is according to the present utility model in a first aspect, providing engine commutator.Commutator is tubular element, in the bottom of pipe
The oil storage hole of blind hole form is provided on end face.By this method, commutator itself is combined with the function of oil sealing, eliminates traditional
Independent oil sealing.
Preferably, oil storage hole is circumferentially uniformly distributed.
Preferably, oil storage hole is curved shape, meets bottom end face.
Embodiment according to the present utility model, commutator are divided into large diameter portion and path part by shoulder transition, storage
Oilhole is set on path part, and depth is flushed with shoulder.
Embodiment according to the present utility model, large diameter portion include multiple installation sections, are separated each other by groove,
And each installation section is provided with grab at top, commutation contact is by grab snap-fitted on each installation section.
Second aspect according to the present utility model provides electric machine assembly, including above-mentioned commutator, coil windings, electricity
Arbor.Commutator and coil windings are assemblied in motor shaft around motor shaft successively along the direction from the bottom of electric machine assembly to top
On, each winding joint a pair of of contact electrical connection corresponding with commutator respectively of coil windings.The inside pipe wall of commutator seals
It is resisted against the peripheral surface of motor shaft.
According to the utility model, due to eliminating traditional oil sealing, simplified manufacturing process, cost reduction, and save
Axial space needed for motor.
From the following specifically describes and attached drawing, the other feature and advantage of the utility model will be evident.
Description of the drawings
In the accompanying drawings, for the sake of clarity, the embodiments of the present invention are shown in a simplified manner.Similar attached drawing mark
Note refers to similar part in the accompanying drawings.
Attached drawing is shown：
Fig. 1 is the perspective schematic view of the electric machine assembly of the prior art.
Fig. 2 is the perspective schematic view of the electric machine assembly of the embodiments of the present invention.
Fig. 2A is the enlarged drawing of encircled portion in Fig. 2, shows commutator.
Specific implementation mode
Within a context, term " bottom " and " top " for the sake of clarity have been used, reference is directed towards respectively
The direction in the direction of electrical-coil winding and separate electrical-coil winding.
The embodiments of the present invention are described referring to Fig. 2.
Fig. 2 shows the electric machine assemblies 100 of the utility model embodiment comprising commutator 120, coil windings 130, electricity
Arbor 140, commutator 120 and coil windings 130 are along the direction from the bottom of electric machine assembly 100 to top successively around motor shaft
140 are assemblied on motor shaft 140, and a pair of of the commutation corresponding with commutator 120 respectively of each winding joint of coil windings 130
Contact (not shown) is electrically connected.This arrangement construction is common, and no further details to be given herein.
As shown in Fig. 2, commutator 120 is configured to tubular element, inside pipe wall is sealed against the peripheral surface of motor shaft 140.
As shown in Figure 2 A, commutator 120 is provided with multiple oil storage holes 121 on the bottom end face of pipe.Oil storage hole 121 is blind
Hole is uniformly distributed circumferentially.In this example, oil storage hole 121 is curved shape, to meet bottom end face.In addition, commutator 120 is logical
It crosses 122 transition of shoulder and is divided into large diameter portion and path part, oil storage hole 121 is set on path part, depth and shoulder 122
It flushes.
The large diameter portion of commutator 120 shown in Fig. 2A includes multiple portions 123, is separated each other by groove 124,
And each part 123 is provided with grab 125 at top, to the contact snap-fitted that will commutate in each section 123.In order to clear
Commutation contact is not shown in Chu Qijian, Fig. 2A.
Embodiment discussing in a specific embodiment and shown in the accompanying drawings, which is only that the utility model is illustrative, to be shown
Example property embodiment.Disclosure according to the present utility model gives those skilled in the art's much possible variations.Especially
Ground, the quantity and its shape of oil storage hole and combination can change.
Reference numerals list
1 electric machine assembly
10 oil sealings
20 commutators
30 coil windings
40 motor shafts
100 electric machine assemblies
120 commutators
121 oil storage holes
122 shoulders
123 installation sections
124 grooves
125 grabs
130 coil windings
140 motor shafts
Claims (6)
1. a kind of engine commutator, which is characterized in that the commutator is tubular element, is provided on the bottom end face of pipe blind
The oil storage hole of well format.
2. engine commutator according to claim 1, which is characterized in that oil storage hole is circumferentially uniformly distributed.
3. engine commutator according to claim 1 or 2, which is characterized in that oil storage hole is curved shape, meets bottom end
Face.
4. engine commutator according to claim 1 or 2, which is characterized in that commutator is divided into greatly by shoulder transition
Path portion and path part, oil storage hole are set on path part, and depth is flushed with shoulder.
5. engine commutator according to claim 4, which is characterized in that large diameter portion includes multiple installation sections, each other
Between separated by groove, and each installation section is provided with grab at top, commutation contact by grab snap-fitted in
On each installation section.
6. a kind of electric machine assembly, including commutator, coil windings, motor shaft, commutator and coil windings are along from electric machine assembly
The direction at bottom to top is assemblied in around motor shaft on motor shaft successively, each winding joints of coil windings respectively with commutator
Corresponding a pair of contact electrical connection, which is characterized in that commutator is commutator according to any one of claims 1-5,
The inside pipe wall of commutator is sealed against the peripheral surface of motor shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721731564.8U CN207782102U (en) | 2017-12-13 | 2017-12-13 | Electric machine assembly and commutator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721731564.8U CN207782102U (en) | 2017-12-13 | 2017-12-13 | Electric machine assembly and commutator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207782102U true CN207782102U (en) | 2018-08-28 |
Family
ID=63231039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721731564.8U Active CN207782102U (en) | 2017-12-13 | 2017-12-13 | Electric machine assembly and commutator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207782102U (en) |
-
2017
- 2017-12-13 CN CN201721731564.8U patent/CN207782102U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102780303B (en) | Motor shaft sealing structure with high protection grade | |
| CN102792530B (en) | Wall-shaped high-frequency assembly | |
| CN202488283U (en) | Direct current motor with electrolytic corrosion prevention structure | |
| CN106329797A (en) | Drive apparatus | |
| CN102039585A (en) | Power tool | |
| US8186686B2 (en) | Electrically-conductive seal assembly | |
| CN105576417A (en) | Connector | |
| CN104638820A (en) | Casing and actuator provided with same | |
| CN207782102U (en) | Electric machine assembly and commutator | |
| CN113454890A (en) | Rotor shaft of electric motor | |
| CN109716628A (en) | Motor | |
| JP6328684B2 (en) | Waterproof structure of electric motor | |
| CN201207593Y (en) | Terminal cover component for motor and motor including the same | |
| JP6260826B2 (en) | Rotating electrical machine rotor | |
| CN103579839B (en) | The connector of electrical connection | |
| CN204906118U (en) | Motor prevent bearings electrolysis structure | |
| US10819061B2 (en) | Power connector | |
| WO2023123527A1 (en) | Brushless motor stator, brushless motor stator fixing method, and brushless motor | |
| JPWO2019159649A1 (en) | Motors and electrical equipment equipped with them | |
| CN204906117U (en) | Motor prevent bearings electrolysis structure | |
| CN204906081U (en) | Plastic envelope motor prevent bearings electrolysis structure | |
| CN104022392A (en) | Waterproof structure for connector | |
| CN105119082A (en) | Electrical connector with contact piece locking structure | |
| CN102969859B (en) | Installation structure of breakover plate of direct current motor | |
| CN110829687A (en) | Glass-sintered brushless direct current motor end cover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |