CN104595355A - Bearing and motor having same - Google Patents
Bearing and motor having same Download PDFInfo
- Publication number
- CN104595355A CN104595355A CN201410670111.3A CN201410670111A CN104595355A CN 104595355 A CN104595355 A CN 104595355A CN 201410670111 A CN201410670111 A CN 201410670111A CN 104595355 A CN104595355 A CN 104595355A
- Authority
- CN
- China
- Prior art keywords
- chamber
- outer ring
- bearing
- inner ring
- motor
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2202/00—Solid materials defined by their properties
- F16C2202/30—Electric properties; Magnetic properties
- F16C2202/32—Conductivity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a bearing and a motor having the same; the bearing includes a body and a conduction member; the body includes an outer ring assembly, an inner ring assembly, a holder, a rolling body and a bearing grease; the inner ring assembly is arranged in the outer ring assembly, and a first chamber and a second chamber spaced apart from each other are defined between the inner ring assembly and the outer ring assembly; the holder and the rolling body are both arranged inside the first chamber, and the rolling body is arranged on the holder; the first chamber is filled with the bearing grease; the conduction member is arranged in the second chamber for electrically connecting the inner ring assembly and the outer ring assembly. According to the bearing, the bearing has the advantages of simple structure and low cost. In addition, when the bearing is applied to the motor, for example, when the bearing is applied to a brushless direct current motor, with arrangement of the conduction member in the second chamber and in the operation process of the motor, a shaft voltage difference between a first inner ring and a first outer ring can be effectively reduced, so that the occurrence of electric erosion of the bearing can be prevented, and then the service life of the bearing is prolonged.
Description
Technical field
The present invention relates to machinery manufacturing technology field, especially relate to a kind of bearing and there is its motor.
Background technique
Pointing out in correlation technique, there is the problem of bearing galvanic corrosion in plastic-sealing brushless DC motor.In order to solve the problem, usually insulating part is set between the outer ring and the inwall of bearing bracket of the bearing of motor, but this just makes the assembling of motor complicated, thus reduces the efficiency of assembling of motor.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.For this reason, one object of the present invention is to propose a kind of bearing, and the structure of described bearing is simple.
Another object of the present invention is to propose a kind of motor with above-mentioned bearing.
The bearing of embodiment according to a first aspect of the present invention, comprise: body, described body comprises outer ring assembl, inner ring assembly, retainer, rolling element and bearing grease, described inner ring assembly to be located in described outer ring assembl and and limit the first chamber and the second chamber that are spaced apart from each other between described outer ring assembl, described retainer and described rolling element are all located in described first chamber, and described rolling element is located on described retainer, described bearing grease is filled in described first chamber; And conduction element, described conduction element is located in described second chamber described inner ring assembly and described outer ring assembl to be electrically connected.
According to the bearing of the embodiment of the present invention, the structure of bearing is simple, and cost is low.In addition, when bearing is applied on motor such as brshless DC motor, by arranging conduction element in the second chamber, in motor operation course, the shaft voltage that can effectively reduce between the first inner ring and the first outer ring is poor, thus the generation of bearing galvanic corrosion can be prevented, and then extend the working life of bearing.
Alternatively, described conduction element is conduction grease, and described conduction grease is filled in described second chamber.
Particularly, described outer ring assembl comprises the first outer ring and the second outer ring that are connected with each other, described first inner ring comprises the first inner ring and the second inner ring that are connected with each other, limit described first chamber between described first outer ring and described first inner ring, between described second outer ring and described second inner ring, limit described second chamber.
Alternatively, described second outer ring is extended towards the direction of the axial the other end away from described first outer ring vertically by axial one end of described first outer ring, and described second inner ring is extended towards the direction of the axial the other end away from described first inner ring vertically by axial one end of described first inner ring.
Alternatively, the peripheral dimension of described second outer ring is less than the peripheral dimension of described first outer ring.
Alternatively, the inner circumferential size of described second inner ring is greater than the inner circumferential size of described first inner ring.
Further, sealing cover is provided with between described first chamber and described second chamber described first chamber and described second chamber isolation to be opened.
Further, one end away from described second chamber of described first chamber is provided with the first Sealing, and one end away from described first chamber of described second chamber is provided with the second Sealing.
The motor of embodiment according to a second aspect of the present invention, comprises the bearing according to the above-mentioned first aspect embodiment of the present invention.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the sectional drawing of the bearing according to the embodiment of the present invention;
Fig. 2 is the schematic diagram of the motor according to the embodiment of the present invention.
Reference character:
100: bearing;
1: body; 11: outer ring assembl; 111: the first outer rings; 112: the second outer rings;
12: inner ring assembly; 121: the first inner rings; 122: the second inner rings;
13: retainer; 14: rolling element; 15: bearing grease;
2: conduction element; 3: sealing cover; 4: the first Sealings; 5: the second Sealings;
200: motor;
201: output shaft; 202: bearing bracket.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " transverse direction ", " length ", " width ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Below with reference to Fig. 1 and Fig. 2, the bearing 100 according to the embodiment of the present invention is described.Wherein, bearing 100 may be used in motor 200 such as brshless DC motor, fixes with the central position of the output shaft 201 keeping motor 200 with the friction factor reduced in power transmission process.In description below the application, for bearing 100 for being described in motor 200 such as brshless DC motor.Certainly, those skilled in the art are appreciated that bearing 100 can also be used in other mechanical transmission mechanism.
As shown in Figure 1, the bearing 100 of embodiment according to a first aspect of the present invention, comprises body 1 and conduction element 2.Wherein, when bearing 100 is applied on motor 200 such as brshless DC motor, the output shaft 201 that bearing 100 can be mounted to brshless DC motor is positioned at bearing with end cover indoor.
Specifically, with reference to Fig. 1, body 1 comprises outer ring assembl 11, inner ring assembly 12, retainer 13, rolling element 14 and bearing grease 15, and inner ring assembly 12 is located in outer ring assembl 11, and limits the first chamber and the second chamber that are spaced apart from each other between inner ring assembly 12 and outer ring assembl 11.Inner ring assembly 12 can match to merge with the output shaft 201 of axle such as motor 200 and rotate together with this axle.
Wherein, retainer 13 and rolling element 14 are all located in the first chamber, and rolling element 14 is located on retainer 13, and bearing grease 15 is filled in the first chamber to play the effect of lubrication.Retainer 13 can prevent rolling element 14 from coming off, and guides rolling element 14 to roll.Rolling element 14 can be multiple, and multiple rolling element 14 is all located on retainer 13, and multiple rolling element 14 uniform intervals distribution in the circumference of retainer 13.Alternatively, multiple rolling element 14 can be ball, cylindrical roller, tapered roller or needle roller etc.
Conduction element 2 is located in the second chamber inner ring assembly 12 and outer ring assembl 11 to be electrically connected.Thus, by arranging conduction element 2 on body 1, the inner ring assembly 12 of bearing 100 and the electrical connection of outer ring assembl 11 can be realized, in motor 200 operation process, the shaft voltage that can effectively reduce between inner ring assembly 12 and outer ring assembl 11 is poor, thus effectively prevents the generation of bearing 100 galvanic corrosion.
Alternatively, conduction element 2 is conduction grease, and conduction grease is filled in the second chamber, thus realizes the electrical connection of the second outer ring 112 assembly 11 and the second inner ring 122 assembly 12.If conduction grease is arranged on the first chamber, although can electric action be played, the running noise of bearing can be caused to rise and the problem such as bearing operation service life reduction.
According to the bearing 100 of the embodiment of the present invention, the structure of bearing 100 is simple, and cost is low.In addition, when bearing 100 is applied on motor 200 such as brshless DC motor, by arranging conduction element 2 in the second chamber, in motor 200 operation process, the shaft voltage that can effectively reduce between the first inner ring 121 and the first outer ring 111 is poor, thus the generation of bearing 100 galvanic corrosion can be prevented, and then extend the working life of bearing 100.
According to a specific embodiment of the present invention, as shown in Figure 1, outer ring assembl 11 comprises the first outer ring 111 and the second outer ring 112 be connected with each other, keep being electrically connected between first outer ring 111 with the second outer ring 112, first inner ring 121 comprises the first inner ring 121 and the second inner ring 122 be connected with each other, keep being electrically connected between first inner ring 121 with the second inner ring 122, limit the first chamber between first outer ring 111 and the first inner ring 121, between the second outer ring 112 and the second inner ring 122, limit the second chamber.
Specifically, second outer ring 112 can by axial one end of the first outer ring 111 (such as, right-hand member in Fig. 1) vertically towards the axial the other end away from the first outer ring 111 (such as, left end in Fig. 1) direction extend, second inner ring 122 by the first inner ring 121 axial one end (such as, right-hand member in Fig. 1) vertically towards the axial the other end away from the first inner ring 121 (such as, left end in Fig. 1) direction extend, now the second outer ring 112 is an axially extended part for the first outer ring 111, second inner ring 122 is an axially extended part for the first inner ring 121.Second outer ring 112 and the first outer ring 111, second inner ring 122 and the first inner ring 121 one-body molded respectively.
Certainly, the second outer ring 112 and the first outer ring 111, second inner ring 122 and the first inner ring 121 also can be respectively separate part, and individually manufacturing, be then threaded connection, buckle structure etc. links into an integrated entity.Such as, second outer ring 112 and the first outer ring 111, second inner ring 122 and the first inner ring 121 are respectively and removably connect, when needing the difference of the shaft voltage between reduction by first outer ring 111 and the first inner ring 121, the second outer ring 112, second inner ring 122 can be mounted to the first outer ring 111 and the first inner ring 121 respectively; When not needing the difference of the shaft voltage between reduction by first outer ring 111 and the first inner ring 121, the second outer ring 112, second inner ring 122 can be pulled down from the first outer ring 111 and the first inner ring 121, thus being very easy to user.
Wherein, toward each other, toward each other, the second outer ring 112 and the second inner ring 122 lay respectively at the same side of the first outer ring 111 and the first inner ring 121 for the second outer ring 112 and the second inner ring 122 for the first outer ring 111 and the first inner ring 121.Be appreciated that the concrete set-up mode of the second outer ring 112 and the second inner ring 122 can require and adaptive change according to practical set, the present invention does not do concrete restriction to this.
With reference to Fig. 1, first outer ring 111 and the first inner ring 121 are all roughly circular, first inner ring 121 is located in the first outer ring 111, first outer ring 111 and the first inner ring 121 can coaxially be arranged, the transverse dimension of the first outer ring 111 is greater than the transverse dimension of the first inner ring 121, and now the first outer ring 111 and the first inner ring 121 are spaced apart from each other to limit above-mentioned first chamber.
Retainer 13 to be located between the first outer ring 111 and the first inner ring 121 and to be positioned at the first chamber, and now the transverse dimension of retainer 13 is between the transverse dimension and the transverse dimension of the first inner ring 121 of the first outer ring 111.
Conduction element 2 to be located between the second outer ring 112 and the second inner ring 122 and to be positioned at the second chamber, so that the second outer ring 112 and the second inner ring 122 are electrically connected, because the second outer ring 112 keeps being electrically connected with between the first inner ring 121 with the first outer ring 111, second inner ring 122 respectively, thus conduction element 2 can be electrically connected between the first outer ring 111 and the first inner ring 121, and then the shaft voltage reduced between the first outer ring 111 and the first inner ring 121 is poor.
Wherein, the peripheral dimension of the second outer ring 112 is less than the peripheral dimension of the first outer ring 111, bearing 100 outer ring (comprising the first outer ring 111 and the second outer ring 112) and the area of contact of the bearing bracket 202 of motor 200 can be reduced like this, the rotor of the motor 200 being equipped with this bearing 100 is easily assembled on bearing bracket 202.
The inner circumferential size of the second inner ring 122 is greater than the inner circumferential size of the first inner ring 121, bearing 100 inner ring (comprising the first inner ring 121 and the second inner ring 122) and the area of contact of the output shaft 201 of motor 200 can be reduced like this, this bearing 100 is easily assembled on this output shaft 201.
Sealing cover 3 is provided with the first chamber and the second chamber isolation to be opened between first chamber and the second chamber, thus, effectively can prevent the such as conducting grease of the conduction element 2 in the second chamber from entering in the first chamber, cause the running noise of bearing 100 to rise and the problem such as bearing 100 reduction running life.
As shown in Figure 1, one end away from the second chamber of first chamber (such as, left end in Fig. 1) be provided with the first Sealing 4, limit the first chamber between first outer ring 111, first inner ring 121, first Sealing 4 and sealing cover 3, the bearing grease 15 be filled in like this in the first chamber not easily spills in the first chamber.
One end away from the first chamber of second chamber (such as, right-hand member in Fig. 1) be provided with the second Sealing 5, limit the second chamber between second outer ring 112, second inner ring 122, second Sealing 5 and sealing cover 3, the conduction element 2 be filled in like this in the second chamber such as conducts electricity grease and can be sealed in well in the second chamber.
According to the bearing 100 of the embodiment of the present invention, grease is such as conducted electricity by arranging conduction element 2 in the second chamber, the first inner ring 121 of bearing 100 and the electrical connection of the first outer ring 111 can be realized, in motor 200 operation process, the shaft voltage that can effectively reduce between the first inner ring 121 of bearing 100 and the first outer ring 111 is poor, thus effectively prevents the generation of bearing 100 galvanic corrosion.
As shown in Figure 2, the motor 200 such as brshless DC motor of embodiment, comprises the bearing 100 according to the above-mentioned first aspect embodiment of the present invention according to a second aspect of the present invention.Such as show two bearings, 100, two bearings 100 to be in the figure 2 example spaced to turn up the soil and to be set on the output shaft 201 of motor 200, and lay respectively on the bearing bracket 202 of the axial both sides of motor 200.
According to the motor 200 such as brshless DC motor of the embodiment of the present invention, bearing 100 can facilitate and be in place rapidly, thus improves the efficiency of assembling of motor 200, and reduces cost.In addition, in motor 200 operation process, can prevent bearing 100 from occurring the problem of galvanic corrosion.
According to the motor 200 of the embodiment of the present invention other form and operation be all known to those skilled in the art, be not described in detail here.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (9)
1. a bearing, is characterized in that, comprising:
Body, described body comprises outer ring assembl, inner ring assembly, retainer, rolling element and bearing grease, described inner ring assembly to be located in described outer ring assembl and and limit the first chamber and the second chamber that are spaced apart from each other between described outer ring assembl, described retainer and described rolling element are all located in described first chamber, and described rolling element is located on described retainer, described bearing grease is filled in described first chamber; With
Conduction element, described conduction element is located in described second chamber described inner ring assembly and described outer ring assembl to be electrically connected.
2. bearing according to claim 1, is characterized in that, described conduction element is conduction grease, and described conduction grease is filled in described second chamber.
3. bearing according to claim 1 and 2, is characterized in that, described outer ring assembl comprises the first outer ring and the second outer ring that are connected with each other, and described first inner ring comprises the first inner ring and the second inner ring that are connected with each other,
Limit described first chamber between described first outer ring and described first inner ring, between described second outer ring and described second inner ring, limit described second chamber.
4. bearing according to claim 3, it is characterized in that, described second outer ring is extended towards the direction of the axial the other end away from described first outer ring vertically by axial one end of described first outer ring, and described second inner ring is extended towards the direction of the axial the other end away from described first inner ring vertically by axial one end of described first inner ring.
5. bearing according to claim 3, is characterized in that, the peripheral dimension of described second outer ring is less than the peripheral dimension of described first outer ring.
6. bearing according to claim 3, is characterized in that, the inner circumferential size of described second inner ring is greater than the inner circumferential size of described first inner ring.
7. bearing according to claim 3, is characterized in that, is provided with sealing cover described first chamber and described second chamber isolation to be opened between described first chamber and described second chamber.
8. bearing according to claim 3, is characterized in that, one end away from described second chamber of described first chamber is provided with the first Sealing, and one end away from described first chamber of described second chamber is provided with the second Sealing.
9. a motor, is characterized in that, comprises the bearing according to any one of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410670111.3A CN104595355A (en) | 2014-11-20 | 2014-11-20 | Bearing and motor having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410670111.3A CN104595355A (en) | 2014-11-20 | 2014-11-20 | Bearing and motor having same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104595355A true CN104595355A (en) | 2015-05-06 |
Family
ID=53121325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410670111.3A Pending CN104595355A (en) | 2014-11-20 | 2014-11-20 | Bearing and motor having same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104595355A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017166811A1 (en) * | 2016-03-31 | 2017-10-05 | 深圳市大疆创新科技有限公司 | Motor, and power device and unmanned aerial vehicle comprising same |
| CN109899399A (en) * | 2017-12-08 | 2019-06-18 | 现代自动车株式会社 | Bearing for drive motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07127647A (en) * | 1993-11-04 | 1995-05-16 | Nippon Seiko Kk | Rotatively supporting device |
| CN1504654A (en) * | 2002-10-22 | 2004-06-16 | Ntn株式会社 | Electroconductive grease-filled bearing |
| US6755572B1 (en) * | 1999-11-15 | 2004-06-29 | Mitsubishi Denki Kabushiki Kaisha | Antifriction bearing |
| CN201517561U (en) * | 2009-04-28 | 2010-06-30 | 温州人本轴承有限公司 | Electric conduction bearing structure |
| CN102780306A (en) * | 2011-05-10 | 2012-11-14 | 美蓓亚株式会社 | Rolling bearing for inverter-driven motor and inverter-driven motor therewith |
-
2014
- 2014-11-20 CN CN201410670111.3A patent/CN104595355A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07127647A (en) * | 1993-11-04 | 1995-05-16 | Nippon Seiko Kk | Rotatively supporting device |
| US6755572B1 (en) * | 1999-11-15 | 2004-06-29 | Mitsubishi Denki Kabushiki Kaisha | Antifriction bearing |
| CN1504654A (en) * | 2002-10-22 | 2004-06-16 | Ntn株式会社 | Electroconductive grease-filled bearing |
| CN201517561U (en) * | 2009-04-28 | 2010-06-30 | 温州人本轴承有限公司 | Electric conduction bearing structure |
| CN102780306A (en) * | 2011-05-10 | 2012-11-14 | 美蓓亚株式会社 | Rolling bearing for inverter-driven motor and inverter-driven motor therewith |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017166811A1 (en) * | 2016-03-31 | 2017-10-05 | 深圳市大疆创新科技有限公司 | Motor, and power device and unmanned aerial vehicle comprising same |
| CN109899399A (en) * | 2017-12-08 | 2019-06-18 | 现代自动车株式会社 | Bearing for drive motor |
| CN109899399B (en) * | 2017-12-08 | 2021-11-05 | 现代自动车株式会社 | Bearing for driving motor |
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Application publication date: 20150506 |
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