CN202840722U - Series motor rotor with secondary insulation structure - Google Patents
Series motor rotor with secondary insulation structure Download PDFInfo
- Publication number
- CN202840722U CN202840722U CN 201220530396 CN201220530396U CN202840722U CN 202840722 U CN202840722 U CN 202840722U CN 201220530396 CN201220530396 CN 201220530396 CN 201220530396 U CN201220530396 U CN 201220530396U CN 202840722 U CN202840722 U CN 202840722U
- Authority
- CN
- China
- Prior art keywords
- rotor
- insulation structure
- motor rotor
- secondary insulation
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to the technical field of motor rotors, in particular to a series motor rotor, and particularly relates to a series motor rotor with a secondary insulation structure. The series motor rotor with the secondary insulation structure comprises a rotating shaft, a rotor iron core and is characterized by further comprising bulk molding compounds. The lower part of the rotating shaft is provided with positive and negative spiral grooves. The bulk molding compounds are placed in the positive and negative spiral grooves in a sleeved mode to form the secondary insulation structure and then are integrated with the rotor iron core. Compared with the prior art, the series motor rotor with the secondary insulation structure is simple in workmanship. Leakage currents are substantially reduced and voltage-withstanding degrees are increased to 4500V-50Hz. When the motor ages and breaks down, leakage of the motor does not appear. The series motor rotor with the secondary insulation structure is capable of increasing safety of the motor and degrees of voltage, being widely applied to the fields of electric tools, household appliances and gardening tools.
Description
Technical field
The utility model relates to the rotor technical field, and especially series excited motor rotor refers to a kind of series excited motor rotor with secondary insulating structure especially.
Background technology
The rotor of tradition series excited machine, rotating shaft and rotor core are directly to be fitted in together, the insulation property of rotor are that the insulating barrier by the insulating paper in the rotor and armature enamelled wire guarantees, this insulation system is called as primary insulation, it can only bear the electric pressure of 1800V-50HZ, and withstand voltage registration is lower.When motor wore out with fault, primary insulation was easy to destroyed, causes the generation of leaky, and Electrical Safety is caused a hidden trouble simultaneously.
Summary of the invention
The purpose of this utility model provides a kind of series excited motor rotor with secondary insulating structure for overcoming the deficiencies in the prior art, in the situation of basic insulation breakage, can guarantee that still motor can not leak electricity, and has improved the fail safe that electrical equipment uses.
In order to achieve the above object, the utility model has designed a kind of series excited motor rotor with secondary insulating structure, comprise rotating shaft, rotor core, it is characterized in that: also comprise BMC, described rotating shaft the latter half is provided with the forward-reverse spiral groove, described BMC forms the secondary insulating structure after being set in the forward-reverse spiral groove, press-fits with rotor core to be integral again.
Further, described BMC is BMC bulk composite material, and its outer ring is the gear-like structure.
Further, the thickness d 〉=2mm of described gear-like structure.
The utility model is compared with prior art, technique is simple, Leakage Current is significantly reduced, voltage withstand class is brought up to 4500V-50HZ, the motor electric leakage phenomenon appears in the aging and Shi Buhui that breaks down at motor, improve the motor safety electric pressure, can be widely used in electric tool, household electrical appliance, garden instrument field.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the profile at A-A place among Fig. 1.
Fig. 3 is the structural representation of the utility model shaft.
Referring to Fig. 1,1 is rotating shaft; 2 is BMC; 3 is rotor core; 4 is the forward-reverse spiral groove.
Embodiment
As shown in Figure 1, the utility model comprises rotating shaft 1, rotor core 3, also comprises BMC 2, and rotating shaft 1 the latter half is provided with forward-reverse spiral groove 4, BMC 2 is set in forward-reverse spiral groove 4 rear formation secondary insulating structures, press-fits with rotor core 3 to be integral again.Wherein, BMC 2 is BMC bulk composite material, and its outer ring is the gear-like structure, the thickness d 〉=2mm of gear-like structure.
The utility model increases a layer thickness greater than the BMC bulk composite material of 2mm between rotating shaft and rotor core, under the prerequisite that guarantees rotor torque, so that the insulation property of rotor are except the insulating paper in the rotor, increased again a secondary insulating, rotor can bear the electric pressure of 4500V-50HZ, greatly reduced the leakage current of motor, the motor electric leakage phenomenon appears in the aging and Shi Buhui that breaks down at motor, improve the motor safety electric pressure, can be widely used in electric tool, household electrical appliance, garden instrument field.
Claims (3)
1. series excited motor rotor with secondary insulating structure, comprise rotating shaft, rotor core, it is characterized in that: also comprise BMC, described rotating shaft the latter half is provided with the forward-reverse spiral groove, described BMC forms the secondary insulating structure after being set in the forward-reverse spiral groove, press-fits with rotor core to be integral again.
2. a kind of series excited motor rotor with secondary insulating structure according to claim 1, it is characterized in that: described BMC is BMC bulk composite material, and its outer ring is the gear-like structure.
3. a kind of series excited motor rotor with secondary insulating structure according to claim 2 is characterized in that: the thickness d 〉=2mm of described gear-like structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220530396 CN202840722U (en) | 2012-10-16 | 2012-10-16 | Series motor rotor with secondary insulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220530396 CN202840722U (en) | 2012-10-16 | 2012-10-16 | Series motor rotor with secondary insulation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202840722U true CN202840722U (en) | 2013-03-27 |
Family
ID=47952332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220530396 Expired - Fee Related CN202840722U (en) | 2012-10-16 | 2012-10-16 | Series motor rotor with secondary insulation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202840722U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401383A (en) * | 2013-08-05 | 2013-11-20 | 瑞安市宏发电器有限公司 | Rotor with insulated rotor shaft and iron core and starter of relevant motor |
| CN104967233A (en) * | 2015-06-30 | 2015-10-07 | 安徽博隆节能电器有限公司 | High-safety switched reluctance motor |
-
2012
- 2012-10-16 CN CN 201220530396 patent/CN202840722U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401383A (en) * | 2013-08-05 | 2013-11-20 | 瑞安市宏发电器有限公司 | Rotor with insulated rotor shaft and iron core and starter of relevant motor |
| CN104967233A (en) * | 2015-06-30 | 2015-10-07 | 安徽博隆节能电器有限公司 | High-safety switched reluctance motor |
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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: 20130327 Termination date: 20161016 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |