CN107370299A - Motor and the conductance exchange device for motor - Google Patents
Motor and the conductance exchange device for motor Download PDFInfo
- Publication number
- CN107370299A CN107370299A CN201710757130.3A CN201710757130A CN107370299A CN 107370299 A CN107370299 A CN 107370299A CN 201710757130 A CN201710757130 A CN 201710757130A CN 107370299 A CN107370299 A CN 107370299A
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- exchange device
- motor
- end cap
- contact
- 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.)
- Pending
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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
Abstract
The present invention relates to machine field, disclose a kind of motor and the conductance exchange device for motor, the conductance exchange device can be arranged between the end cap (21) of motor (20) and rotating shaft (22) so that the end cap (21) conducts with rotating shaft (22), the conductance exchange device includes the fixture (10) for being connected with the end cap (21) and the contact (12) for being made electrical contact with the rotating shaft (22), the contact (12) is fixedly connected on the fixture (10) by connector (11) and can be pressed in the rotating shaft (22).The conductance exchange device of the present invention can conduct the Internal and external cycle of motor bearings, the electrical potential difference between bearing internal external circle be eliminated, so as to solve the problems, such as bearing because of galvanic corrosion and by damage ring.
Description
Technical field
The present invention relates to machine field, the conductance exchange device more particularly to a kind of motor and for motor.
Background technology
Bearing is the important component coordinated in motor with rotating shaft.But during motor frequency conversion operates, it is installed on and turns
The inner ring of bearing on axle can not be sufficiently conductive due to the influence of Bearing inner oil film with outer ring, thus inner ring and outer ring it
Between form electrical potential difference so that electric discharge is produced between the ball and Internal and external cycle in bearing, so as to cause bearing internal external circle and ball
Galvanic corrosion, cause bearing damage.
It is, therefore, desirable to provide a kind of device that can conduct the inner ring of bearing and outer ring, with eliminate bearing inner race with
Electrical potential difference between outer ring.
The content of the invention
The purpose of the present invention is to provide a kind of motor and the conductance exchange device for motor, the conductance regarding to the issue above
Exchange device can conduct the Internal and external cycle of motor bearings, eliminate the electrical potential difference between bearing internal external circle, so as to solve bearing electricity
Deteriorate ring the problem of.
To achieve these goals, the present invention provides a kind of conductance exchange device for motor, and the conductance exchange device can
It is arranged between the end cap of motor and rotating shaft so that the end cap conducts with rotating shaft, the conductance exchange device includes being used for and institute
The fixture of end cap connection and the contact for being made electrical contact with the rotating shaft are stated, the contact is fixed by connector to be connected
It is connected to the fixture and the rotating shaft can be pressed in.
Preferably, the fixture is formed to be installed on the lid of the end cap.
Preferably, the lid is bolted to connection in institute with the end cap for interference fit, or the lid
State end cap.
Preferably, the connector is elastic component.
Preferably, the elastic component is formed as U-shaped.
Preferably, the contact is contact.
Preferably, the contact is formed as hemispherical.
Preferably, the connector electric resistance welding or the fixture is riveted on, and/or the contact is riveted on the company
Fitting.
The present invention also provides a kind of motor, and the motor includes rotating shaft, is sheathed on the bearing of described rotating shaft one end and is used for
The end cap of the positioning support bearing, the bearing are outer including what is contacted with the inner ring of the shaft contacts and with the end cap
Circle, the motor also include the above-described conductance exchange device being arranged between the end cap and rotating shaft.
Preferably, the contact and the central contact of the end face of the rotating shaft.
The present invention makes end cap realize conductance with rotating shaft by setting conductance exchange device between the end cap of motor and rotating shaft
It is logical, further such that the bearing outer ring that is contacted with end cap and being realized between the bearing inner race of shaft contacts conducts, so as to disappear
Except the electrical potential difference between bearing inner race and outer ring, bearing galvanic corrosion is avoided to damage.Simple, the dismounting that conducts apparatus structure of the present invention
It is convenient, and motor need not be transformed.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is for providing a further understanding of the present invention, and a part for constitution instruction, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is a kind of sectional view of embodiment of conductance exchange device in the present invention；
Fig. 2 is the stereogram of conductance exchange device in Fig. 1；
Fig. 3 is a kind of structural representation of embodiment of motor in the present invention；
Fig. 4 is Fig. 3 partial enlarged drawing.
Description of reference numerals
The connector of 10 fixture 11
The motor of 12 contact 20
The rotating shaft of 21 end cap 22
The inner ring of 23 bearing 231
The rolling element of 232 outer ring 233
24 retainers
Embodiment
The embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
In the present invention, in the case where not making opposite explanation, the noun of locality such as " inside and outside " used refers to relative to each portion
Part profile itself it is inside and outside.
The present invention provides a kind of conductance exchange device for motor, and the conductance exchange device can be arranged at the end cap of motor 20
So that the end cap 21 conducts with rotating shaft 22 between 21 and rotating shaft 22, the conductance exchange device includes being used for and the end cap 21
The fixture 10 of connection and the contact 12 for being made electrical contact with the rotating shaft 22, the contact 12 are solid by connector 11
Surely it is connected to the fixture 10 and the rotating shaft 22 can be pressed in.
By such scheme, conductance exchange device is set between the end cap 21 of motor 20 and rotating shaft 22, by making end cap 21
Realize and conduct with rotating shaft 22, further such that the bearing outer ring contacted with end cap 21 and the bearing inner race that is contacted with rotating shaft 22 it
Between realize and conduct, so as to eliminate the electrical potential difference between bearing internal external circle, avoid bearing galvanic corrosion from damaging.And due to contact 12
It is pressed in rotating shaft 22, it can be ensured that in the rotation process of rotating shaft 22, contact 12 makes electrical contact with rotating shaft 22 all the time.In addition, this
Conduct apparatus structure simple, low manufacture cost, the convenient disassembly of invention, and motor need not be transformed.
It should be appreciated that in the conductance exchange device of the present invention, fixture 10, connector 11 and contact 12 are by conduction material
Material is made.
In the present invention, fixture 10 can have arbitrary structures or shape, as long as making it be connected with end cap 21.And it is
Make the structure of conductance exchange device more stable, make connector 11 and contact 12 that there is reliable support, and electricity need not be transformed
Machine can realize firm connection with end cap 21, preferably, the fixture 10 is formed to be installed on the end cap 21
Lid, as shown in Figures 2 and 3, fixture 10 can be covered in the center drilling of end cap 21.
In order to realize the firm connection of the lid and end cap 21, the lid can be that interference is matched somebody with somebody with the end cap 21
Close, the lid can also be made to be bolted to connection in the end cap 21.
In the present invention, fully contacted in order that contact 12 remains with rotating shaft 22, the connector 11 is preferably bullet
Property part.The elastic component can have arbitrary shape, such as can be the spring-like along the central axis extension of rotating shaft 22.The present invention
In, preferably, as Figure 1-Figure 4, the elastic component is formed as U-shaped.So it is not only convenient for and fixture 10 and contact
12 connection, and contact 12 can be pressed in rotating shaft 22, it is hardly damaged, service life length.
According to, to a kind of embodiment of contact 12, the contact 12 is preferably contact in the present invention.The contact can
It is made up of metal materials such as copper.Wherein, the contact is preferably to form sphere-contact with the rotating shaft 22, to avoid the contact
Torque is produced between rotating shaft 22.Such as the contact can be formed as hemispherical.
In the present invention, it can be fastened between fixture 10 and connector 11, connector 11 and contact 12 by any-mode
Connection, for example, by the electric resistance welding of connector 11 or being riveted on fixture 10, connector 11 is riveted on by contact 12.
The present invention also provides a kind of motor, and the motor 20 includes rotating shaft 22, is sheathed on the bearing 23 of described one end of rotating shaft 22
And the end cap 21 of the bearing 23 is supported for positioning, the bearing 23 include the inner ring 231 contacted with the rotating shaft 22 and
The outer ring 232 contacted with the end cap 21, the motor 20 is also including more than being arranged between the end cap 21 and rotating shaft 22
Described conductance exchange device.
Bearing galvanic corrosion is due to inner ring 231 and the outer ring for the bearing 23 in motor operation course, being installed in rotating shaft 22
232 can not be sufficiently conductive due to the influence of the inside oil film of bearing 23, so that forming potential between inner ring 231 and outer ring 232
Difference so that produced between the rolling element 233 and Internal and external cycle in bearing 23 caused by electric discharge.The present invention by with bearing 23
Conductance exchange device is set between the end cap 21 of the contact of outer ring 232 and the rotating shaft 22 contacted with the inner ring 231 of bearing 23, so that axle
The inner ring 231 and the realization of outer ring 232 for holding 23 conduct, and the electrical potential difference between bearing internal external circle are eliminated, to avoid bearing galvanic corrosion from damaging
It is bad.
Wherein, as shown in Figure 3 and Figure 4, the bearing that motor 20 can also include being arranged between end cap 21 and bearing 23 is protected
Hold frame 24.
Further, since the centre linear velocity very little of the end face of rotating shaft 22, therefore, heretofore described contact 12 is excellent
Elect the central contact with the end face of rotating shaft 22 as, can so greatly reduce the abrasion of contact 12 and rotating shaft 22, extending it makes
Use the life-span.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, still, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the present invention, a variety of letters can be carried out to technical scheme
Monotropic type, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (10)
1. a kind of conductance exchange device for motor, it is characterised in that the conductance exchange device can be arranged at the end of motor (20)
Cover between (21) and rotating shaft (22) so that the end cap (21) conducts with rotating shaft (22), the conductance exchange device including for
The fixture (10) and the contact (12) for being made electrical contact with the rotating shaft (22) of end cap (21) connection, the contact
Part (12) is fixedly connected on the fixture (10) by connector (11) and can be pressed in the rotating shaft (22).
2. conductance exchange device according to claim 1, it is characterised in that the fixture (10) is formed to be installed on
The lid of the end cap (21).
3. conductance exchange device according to claim 2, it is characterised in that the lid is matched somebody with somebody with the end cap (21) for interference
Close, or the lid is bolted to connection in the end cap (21).
4. conductance exchange device according to claim 1, it is characterised in that the connector (11) is elastic component.
5. conductance exchange device according to claim 4, it is characterised in that the elastic component is formed as U-shaped.
6. the conductance exchange device according to any one in claim 1-5, it is characterised in that the contact (12) is tactile
Point.
7. conductance exchange device according to claim 6, it is characterised in that the contact is formed as hemispherical.
8. conductance exchange device according to claim 1, it is characterised in that connector (11) electric resistance welding is riveted on institute
Fixture (10) is stated, and/or the contact (12) is riveted on the connector (11).
9. a kind of motor, the motor (20) includes rotating shaft (22), the bearing (23) for being sheathed on the rotating shaft (22) one end and used
The end cap (21) of the bearing (23) is supported in positioning, the bearing (23) includes the inner ring contacted with the rotating shaft (22)
(231) outer ring (232) and with the end cap (21) contacted, it is characterised in that the motor (20) is also described including being arranged at
The conductance exchange device as described in any one in claim 1-8 between end cap (21) and rotating shaft (22).
10. motor according to claim 9, it is characterised in that the contact (12) and the end face of the rotating shaft (22)
Central contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757130.3A CN107370299A (en) | 2017-08-29 | 2017-08-29 | Motor and the conductance exchange device for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757130.3A CN107370299A (en) | 2017-08-29 | 2017-08-29 | Motor and the conductance exchange device for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107370299A true CN107370299A (en) | 2017-11-21 |
Family
ID=60310519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710757130.3A Pending CN107370299A (en) | 2017-08-29 | 2017-08-29 | Motor and the conductance exchange device for motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107370299A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681836A (en) * | 2017-11-24 | 2018-02-09 | 合肥巨动力系统有限公司 | A kind of motor for eliminating bearing galvano-cautery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09291943A (en) * | 1996-04-25 | 1997-11-11 | Matsushita Electric Ind Co Ltd | Rolling bearing and electric motor |
| JP2000102219A (en) * | 1998-09-28 | 2000-04-07 | Mitsubishi Electric Corp | Device for preventing axial current of electric motor or blower |
| CN203730545U (en) * | 2014-01-20 | 2014-07-23 | 温岭市鑫标精密轴承有限公司 | Electric-corrosion-proof bearing |
| CN207069822U (en) * | 2017-08-29 | 2018-03-02 | 广东威灵电机制造有限公司 | Motor and the conductance exchange device for motor |
-
2017
- 2017-08-29 CN CN201710757130.3A patent/CN107370299A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09291943A (en) * | 1996-04-25 | 1997-11-11 | Matsushita Electric Ind Co Ltd | Rolling bearing and electric motor |
| JP2000102219A (en) * | 1998-09-28 | 2000-04-07 | Mitsubishi Electric Corp | Device for preventing axial current of electric motor or blower |
| CN203730545U (en) * | 2014-01-20 | 2014-07-23 | 温岭市鑫标精密轴承有限公司 | Electric-corrosion-proof bearing |
| CN207069822U (en) * | 2017-08-29 | 2018-03-02 | 广东威灵电机制造有限公司 | Motor and the conductance exchange device for motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681836A (en) * | 2017-11-24 | 2018-02-09 | 合肥巨动力系统有限公司 | A kind of motor for eliminating bearing galvano-cautery |
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