CN201511355U - Electric tool rotor provided with special heat-radiating fan blades - Google Patents
Electric tool rotor provided with special heat-radiating fan blades Download PDFInfo
- Publication number
- CN201511355U CN201511355U CN2009200484733U CN200920048473U CN201511355U CN 201511355 U CN201511355 U CN 201511355U CN 2009200484733 U CN2009200484733 U CN 2009200484733U CN 200920048473 U CN200920048473 U CN 200920048473U CN 201511355 U CN201511355 U CN 201511355U
- Authority
- CN
- China
- Prior art keywords
- electric tool
- tool rotor
- rotor
- commutator
- fan blades
- 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.)
- Expired - Fee Related
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- Motor Or Generator Current Collectors (AREA)
- Motor Or Generator Cooling System (AREA)
- Dc Machiner (AREA)
Abstract
The utility model discloses an electric tool rotor provided with special heat-radiating fan blades. The electric tool rotor comprises an electric tool rotor body, fan blades, a commutator and a back bearing; an insulation gasket is arranged between the commutator and the back bearing; and the outer edge of the insulation gasket is in the shape of a fan blade. The electric tool rotor has a simple structure and is convenient to use; the special heat-radiating fan blades are added to a traditional electric tool rotor, so that when the electric tool rotor rotates at a high speed, the heat of the commutator and the back bearing of the rotor can be radiated out timely; and by adopting the electric tool rotor disclosed by the utility model, the service life of the electric tool can be greatly prolonged.
Description
Technical field:
The utility model relates to a kind of electric tool rotor.
Background technology:
The rotor of existing electric tool is equipped with a fan blade and is used for dispelling the heat, when rotor works long hours under load condition, the commutator position of rotor can produce a large amount of heats, these origin of heat are in two aspects, flow through very big electric current on the commutation copper bar of commutator on the one hand and can produce a large amount of heats, the mechanical friction between commutator and the carbon brush also can produce a large amount of heats on the other hand.Too high heat can damage commutator, reduces rotor service life.
Rear bearing is when rotating at a high speed, and bearing inside also can produce a large amount of heats, if these heats can not well distribute, dries the bearing internal grease easily, causes bearing dry friction to occur, and this will shorten the service life of bearing greatly.
The utility model content:
The purpose of this utility model is to provide a kind of electric tool rotor with special heat radiation fan blade that the heat of the commutator of rotor and rear bearing in time can be distributed.
Technical solution of the present utility model is:
A kind of electric tool rotor with special heat radiation fan blade comprises electric tool rotor body, fan blade, commutator, rear bearing, between commutator and rear bearing insulating washer is set, and it is characterized in that: described insulating washer outer rim is fan blade shape.
The utility model is rational in infrastructure, and is easy to use, increases special heat radiation fan blade on traditional electric tool rotor, makes the electric tool rotor when rotating at a high speed, and the commutator of rotor and the heat of rear bearing can in time distribute; Electric tool adopts the utility model, can prolong electric tool service life greatly.
Description of drawings:
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the configuration diagram of an embodiment of the utility model.
The specific embodiment:
Fig. 1 is a kind of electric tool rotor with special heat radiation fan blade, comprises electric tool rotor body 2, conventional fan blade 1, commutator 3, rear bearing 5, and insulating washer 4 is set between commutator and rear bearing, and described insulating washer outer rim is fan blade shape.Rotor has fan blade 1 commonly used and insulating washer 4 simultaneously motor to be dispelled the heat when rotating at a high speed, and the temperature of commutator 3 and rear bearing 5 can reduce greatly.
Claims (1)
1. the electric tool rotor with special heat radiation fan blade comprises electric tool rotor body, fan blade, commutator, rear bearing, between commutator and rear bearing insulating washer is set, and it is characterized in that: described insulating washer outer rim is fan blade shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200484733U CN201511355U (en) | 2009-10-22 | 2009-10-22 | Electric tool rotor provided with special heat-radiating fan blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200484733U CN201511355U (en) | 2009-10-22 | 2009-10-22 | Electric tool rotor provided with special heat-radiating fan blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201511355U true CN201511355U (en) | 2010-06-23 |
Family
ID=42482756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200484733U Expired - Fee Related CN201511355U (en) | 2009-10-22 | 2009-10-22 | Electric tool rotor provided with special heat-radiating fan blades |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201511355U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894981A (en) * | 2012-12-25 | 2014-07-02 | 苏州宝时得电动工具有限公司 | Electric hammer |
-
2009
- 2009-10-22 CN CN2009200484733U patent/CN201511355U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894981A (en) * | 2012-12-25 | 2014-07-02 | 苏州宝时得电动工具有限公司 | Electric hammer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20171022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |