CN203896084U - Three-phase asynchronous motor - Google Patents
Three-phase asynchronous motor Download PDFInfo
- Publication number
- CN203896084U CN203896084U CN201420283056.8U CN201420283056U CN203896084U CN 203896084 U CN203896084 U CN 203896084U CN 201420283056 U CN201420283056 U CN 201420283056U CN 203896084 U CN203896084 U CN 203896084U
- Authority
- CN
- China
- Prior art keywords
- heat radiation
- insulating barrier
- shell
- housing
- fin
- 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
Links
Abstract
The utility model discloses a three-phase asynchronous motor. The three-phase asynchronous motor comprises a shell and radiating fins uniformly arranged at the outside of the shell, an internal surface of the shell is provided with an insulating layer, a surface of the insulating layer, connected with the shell, is provided with a plurality of strip-shaped projections, the plurality of strip-shaped projections are uniformly arranged along the circumference of an external surface of the insulating layer, positions of an inner wall of the shell, corresponding to the plurality of strip-shaped projections, are provided with grooves matched with the strip-shaped projections, the plurality of grooves are uniformly arranged along the circumference of the internal surface of the shell, the shell is uniformly provided with a plurality of heat radiation through holes, the heat radiation through holes are positioned between the radiating fins, the inner part of the shell is communicated with the outside via the heat radiation through holes, and heat radiation materials with high heat conductivity are filled in the heat radiation through holes. According to the three-phase asynchronous motor, the danger of electric leakage can be avoided, and the heat radiation effect is good.
Description
Technical field
The utility model belongs to motor technology field, especially relates to a kind of threephase asynchronous.
Background technology
Threephase asynchronous metal shell be do not allow charged, otherwise people touch will shock by electricity, casualty accident.Threephase asynchronous metal shell electrification phenomenon has been summed up following situation:
1, stator winding insulation damages and causes electric leakage.Reason has: threephase asynchronous is oversize service time, aging due to winding insulation; Or having foreign matter to enter motor interior makes to damage due to winding insulation; Or motor transships for a long time to generate heat and makes to burn out due to winding; Or the rated voltage that supply voltage surpasses motor causes that stator winding insulation punctures etc.These all may make the metal shell of motor charged.In addition, if motor surrounding environment is moist; Or motor is under sleet invasion and attack, and water droplet enters motor interior; Or due to erosion of pernicious gas etc.These all can make three-phase schedule winding insulation performance reduction (insulation resistance decline), make motor metal shell charged.
2, motor does not adopt the safety measure of protective earthing or protection connecting to neutral, or the device of motor protection ground connection and protection connecting to neutral is undesirable.
3, in same supply line, a part of motor adopts the measure of protection connecting to neutral, and another part motor adopts the measure of protective earthing.If adopt the run into carapace short of protective earthing, the short circuit current producing does not make fuse or the action of other protective device, and the potential rise of zero line, so can make the dangerous voltage that on the metal shell band of the motor that is connected with zero line, people got an electric shock.
Common motor is that shell is metal shell, if there is above-mentioned situation, for the people who touches motor casing, directly has influence on its life security.Can directly avoid Danger Electric shock risk by improving the electric conductivity of shell.
Utility model content
The purpose of this utility model is to solve the deficiencies in the prior art part, and a kind of threephase asynchronous of avoid leaking electricity danger and good heat dissipation effect is provided.
The purpose of this utility model solves by following technical proposal:
A threephase asynchronous, comprises housing and is evenly located at the fin of hull outside, it is characterized in that: described shell inner surface is provided with an insulating barrier; The one side that described insulating barrier is connected with housing is provided with many strip bulges, and described many strip bulges prolong insulating barrier outer surface even circumferential and arrange; The described inner walls position corresponding with many strip bulges respectively has a groove matching with strip bulge, and it is evenly distributed that described a plurality of grooves prolong shell inner surface cylinder;
On described housing, evenly have a plurality of heat radiation through holes, described heat radiation through hole is between fin and fin, and described heat radiation through hole is communicated with enclosure interior with extraneous, in heat radiation through hole, is filled with the heat sink material that thermal conductivity is high.
Insulating barrier described in the utility model and many strip bulges are one-body molded, and the thickness of described insulating barrier is 1 ~ 3mm.
The material of insulating barrier described in the utility model is insulating ceramics.
Compared to the prior art the utlity model has following characteristics and beneficial effect:
1, motor field frame inwall is provided with insulating barrier, and when electric leakage occurs enclosure interior, insulating barrier has directly been blocked being connected of inner and housing, has avoided housing charged and bring Danger Electric shock risk to the people who touches housing.
2, be located at strip bulge on insulating barrier and the groove on housing, insulating barrier be connected tightr with housing.
3, enclosure interior has added that insulating barrier makes housing thickening, and the heat radiation through hole arranging on housing and be located at the fin on housing has guaranteed the radiating effect of housing.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is that sectional structure schematic diagram is looked on the utility model left side.
Fig. 3 is the utility model fin place structural representation.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further details.
As shown in Figure 1 and Figure 2, a kind of threephase asynchronous, comprises housing 1 and is evenly located at the fin 2 in housing 1 outside.Described housing 1 inner surface is provided with an insulating barrier 3; The one side that described insulating barrier 3 is connected with housing 1 is provided with many strip bulges 4, and described many strip bulges 4 prolong insulating barrier 3 outer surface even circumferentials and arrange; The described housing 1 inwall position corresponding with many strip bulges 4 respectively has a groove 5 matching with strip bulge 4, and described a plurality of grooves 5 prolong housing 1 inner surface even circumferential and arrange.
When damaging, stator winding insulation causes electric leakage; when motor does not adopt the safety measure of protective earthing or protection connecting to neutral; insulating barrier 3 has been blocked being connected of internal mechanism and housing 1 well, can be because of inside electric leakage and not charged on housing 1, and workman touches housing 1 and does not have Danger Electric shock risk.
As shown in Figure 2 and Figure 3, evenly have a plurality of heat radiation through holes 6 on described housing 1, described heat radiation through hole 6 is between fin 2 and fin 2, and it is inner and extraneous that described heat radiation through hole 6 is communicated with housing 1, in heat radiation through hole 6, is filled with the heat sink material that thermal conductivity is high.Housing 1 inside has added that insulating barrier 3 makes housing 1 thickening, and the heat radiation through hole 6 arranging on housing 1 and be located at the fin 2 on housing 1 has guaranteed the radiating effect of housing 1.
Insulating barrier 3 described in the utility model is one-body molded with many strip bulges 4, and the thickness of described insulating barrier 3 is 1 ~ 3mm.Integrated insulating barrier 3 and strip bulge 4 can reinforced insulation layers 3 with housing 1 between the compactness that is connected.
The material of insulating barrier 3 described in the utility model is insulating ceramics.Its insulation effect of insulating ceramics coating is good, can directly in shell inner surface, spray.The insulating ceramics class of insulation is high, wear-resisting, lightweight, easy construction, long service life.
Claims (3)
1. a threephase asynchronous, comprises housing and is evenly located at the fin of hull outside, it is characterized in that: described shell inner surface is provided with an insulating barrier; The one side that described insulating barrier is connected with housing is provided with many strip bulges, and described many strip bulges prolong insulating barrier outer surface even circumferential and arrange; The described inner walls position corresponding with many strip bulges respectively has a groove matching with strip bulge, and described a plurality of grooves prolong shell inner surface even circumferential and arrange;
On described housing, evenly have a plurality of heat radiation through holes, described heat radiation through hole is between fin and fin, and described heat radiation through hole is communicated with enclosure interior with extraneous, in heat radiation through hole, is filled with the heat sink material that thermal conductivity is high.
2. threephase asynchronous according to claim 1, is characterized in that: described insulating barrier and many strip bulges are one-body molded, and the thickness of described insulating barrier is 1 ~ 3mm.
3. threephase asynchronous according to claim 1, is characterized in that: the material of described insulating barrier is insulating ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420283056.8U CN203896084U (en) | 2014-05-30 | 2014-05-30 | Three-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420283056.8U CN203896084U (en) | 2014-05-30 | 2014-05-30 | Three-phase asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203896084U true CN203896084U (en) | 2014-10-22 |
Family
ID=51722437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420283056.8U Expired - Fee Related CN203896084U (en) | 2014-05-30 | 2014-05-30 | Three-phase asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203896084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112134408A (en) * | 2020-09-07 | 2020-12-25 | 江瀛 | Energy-saving self-excited three-phase asynchronous motor |
-
2014
- 2014-05-30 CN CN201420283056.8U patent/CN203896084U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112134408A (en) * | 2020-09-07 | 2020-12-25 | 江瀛 | Energy-saving self-excited three-phase asynchronous 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: 20141022 Termination date: 20160530 |