CN103078438A - Structure for reducing electrostatic corrosion of motor - Google Patents
Structure for reducing electrostatic corrosion of motor Download PDFInfo
- Publication number
- CN103078438A CN103078438A CN2012104206292A CN201210420629A CN103078438A CN 103078438 A CN103078438 A CN 103078438A CN 2012104206292 A CN2012104206292 A CN 2012104206292A CN 201210420629 A CN201210420629 A CN 201210420629A CN 103078438 A CN103078438 A CN 103078438A
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- China
- Prior art keywords
- motor
- electrostatic discharge
- end cover
- rear end
- discharge sheet
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- 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.)
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Abstract
The invention discloses a structure for reducing the electrostatic corrosion of a motor, comprising a front end cover, a rear end cover and a stator iron core, wherein an electrostatic discharge piece is arranged between the front end cover and the rear end cover of the motor; one end of the electrostatic discharge piece is riveted with the front end cover by a rivet, and the other end of the electrostatic discharge piece is provided with a sawtooth-shaped structure; and an insulated inserting piece is arranged between the electrostatic discharge piece and the stator iron core. The structure disclosed by the invention has the advantages that the potential difference of the front end cover and the rear end cover of a ball bearing can be reduced, so that the potential difference of an inner wheel and an outer wheel of the bearing is reduced, the phenomenon of electrostatic corrosion is reduced, and the purposes of prolonging the service life of the bearing and eliminating the noise of the motor are achieved.
Description
Technical field
The present invention relates to the ball bearing motor, particularly relate to a kind of structure that reduces the motor static corrosion.
Background technology
The static corrosion claims again galvanic corrosion phenomenon, galvanic corrosion phenomenon to be because there is potential difference in the interior foreign steamer of motor ball bearing, discharges by steel ball, make the surface of steel ball local melting and concavo-convex occur, form undulatory wear, thereby affect the performance of ball bearing, make motor produce unusual sound.The static etching problem was just found in recent years, mainly occur in the area of the very cold dryings such as Northern Europe, therefore the research of static corrosion protection also just begins, present useful conducting adhesive cloth couples together the rear and front end lid, but conducting adhesive cloth is damaged easily, in case electric conductivity variation even disappearance after damaged.Also having a kind of mode is with steel plate front and rear cover to be coupled together, and it is sometimes insufficient that shortcoming is that steel plate contacts with two end caps, causes the galvanic corrosion protection to be lost efficacy.
Summary of the invention
Purpose of the present invention is exactly the structure that a kind of reduction motor static corrosion of dependable performance will be provided, and it can overcome the static corrosion phenomenon well.
The present invention realizes like this, a kind of structure that reduces the motor static corrosion, formed by front end housing, rear end cap, stator core, it is characterized in that: be provided with electrostatic discharge sheet between the front end housing of motor and the rear end cap, one end of described electrostatic discharge sheet is riveted tightly by rivet and front end housing, the other end of electrostatic discharge sheet is arranged to laciniation, is provided with the insulation inserted sheet between described electrostatic discharge sheet and the stator core.
The present invention can reduce the potential difference of the forward and backward end cap of ball bearing motor, thereby the potential difference of bearing internal external wheel is reduced, and reduces the static corrosion phenomenon, reaches to improve bearing useful life, eliminates the purpose of motor noise.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is electrostatic discharge sheet structural representation of the present invention;
Fig. 3 is insulation plate-inserting structure schematic diagram of the present invention.
Among the figure 1, front end housing, 2, rear end cap, 3, electrostatic discharge sheet, 4, the insulation inserted sheet, 5, stator core.
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
A kind of structure that reduces the motor static corrosion, formed by front end housing 1, rear end cap 2, stator core 5, between the front end housing 1 of motor, rear end cap 2, an electrostatic discharge sheet 3 is set, two end cap is coupled together, make on the two end cap current potential identical, reduce thus the potential difference on the foreign steamer in the ball bearing, thereby reduce the electric discharge phenomena on the ball steel ball, reduce the wearing and tearing of steel ball, reduced the generation of galvano-cautery; One end of described electrostatic discharge sheet 3 and the front end housing of motor 1 are riveted tightly by rivet, the other end contacts with the rear end cap 2 of motor, structure in the past is exactly that electrostatic discharge sheet 3 can not guarantee to contact fully when contacting with rear end cap 2, the design is firm for guaranteeing that electrostatic discharge sheet 3 contacts with rear end cap 2, make laciniation at electrostatic discharge sheet 3, when rear end cap 2 was pressed into, it is firm that jagged electrostatic discharge sheet 3 contacts with rear end cap 2 like this; Studies show that, current potential on the stator core 5 is the highest, so should avoid electrostatic discharge sheet 3 to contact with stator core 5, has therefore increased an insulation inserted sheet 4, electrostatic discharge sheet 3 is inserted between insulation inserted sheet 4 and the stator core 5, has reduced the generation of static corrosion phenomenon.
Claims (1)
1. one kind is reduced the structure that motor static corrodes, formed by front end housing (1), rear end cap (2), stator core (5), it is characterized in that: be provided with electrostatic discharge sheet (3) between the front end housing of motor (1) and the rear end cap (2), one end of described electrostatic discharge sheet (3) is riveted tightly by rivet and front end housing (1), the other end of electrostatic discharge sheet (3) is arranged to laciniation, is provided with insulation inserted sheet (4) between described electrostatic discharge sheet (3) and the stator core (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104206292A CN103078438A (en) | 2012-10-30 | 2012-10-30 | Structure for reducing electrostatic corrosion of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104206292A CN103078438A (en) | 2012-10-30 | 2012-10-30 | Structure for reducing electrostatic corrosion of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103078438A true CN103078438A (en) | 2013-05-01 |
Family
ID=48154877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104206292A Pending CN103078438A (en) | 2012-10-30 | 2012-10-30 | Structure for reducing electrostatic corrosion of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103078438A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112311127A (en) * | 2019-07-26 | 2021-02-02 | 广东威灵电机制造有限公司 | Brushless motor and electrical equipment |
| WO2021017193A1 (en) * | 2019-07-26 | 2021-02-04 | 广东威灵电机制造有限公司 | Brushless electric motor and electrical device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007089338A (en) * | 2005-09-22 | 2007-04-05 | Nidec Shibaura Corp | Molded motor |
| US20080042499A1 (en) * | 2005-07-08 | 2008-02-21 | Nidec Shibaura Corporation | Molded motor |
| CN101529697A (en) * | 2006-10-17 | 2009-09-09 | 罗伯特·博世有限公司 | Conveying assembly |
| EP2299559A2 (en) * | 2009-09-18 | 2011-03-23 | Fujitsu General Limited | Molded motor |
| CN202488283U (en) * | 2012-02-27 | 2012-10-10 | 广东威灵电机制造有限公司 | Direct current motor with electrolytic corrosion prevention structure |
| CN102751804A (en) * | 2011-03-30 | 2012-10-24 | 富士通将军股份有限公司 | Molded motor |
-
2012
- 2012-10-30 CN CN2012104206292A patent/CN103078438A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080042499A1 (en) * | 2005-07-08 | 2008-02-21 | Nidec Shibaura Corporation | Molded motor |
| JP2007089338A (en) * | 2005-09-22 | 2007-04-05 | Nidec Shibaura Corp | Molded motor |
| CN101529697A (en) * | 2006-10-17 | 2009-09-09 | 罗伯特·博世有限公司 | Conveying assembly |
| EP2299559A2 (en) * | 2009-09-18 | 2011-03-23 | Fujitsu General Limited | Molded motor |
| CN102751804A (en) * | 2011-03-30 | 2012-10-24 | 富士通将军股份有限公司 | Molded motor |
| CN202488283U (en) * | 2012-02-27 | 2012-10-10 | 广东威灵电机制造有限公司 | Direct current motor with electrolytic corrosion prevention structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112311127A (en) * | 2019-07-26 | 2021-02-02 | 广东威灵电机制造有限公司 | Brushless motor and electrical equipment |
| WO2021017193A1 (en) * | 2019-07-26 | 2021-02-04 | 广东威灵电机制造有限公司 | Brushless electric motor and electrical device |
| CN112311127B (en) * | 2019-07-26 | 2021-10-01 | 广东威灵电机制造有限公司 | Brushless motor and electrical equipment |
| US12040678B2 (en) | 2019-07-26 | 2024-07-16 | Guangdong Welling Motor Manufacturing Co., Ltd. | Brushless motor and electrical equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130501 |