CN204089407U - A kind of fan electromotor - Google Patents
A kind of fan electromotor Download PDFInfo
- Publication number
- CN204089407U CN204089407U CN201420567783.7U CN201420567783U CN204089407U CN 204089407 U CN204089407 U CN 204089407U CN 201420567783 U CN201420567783 U CN 201420567783U CN 204089407 U CN204089407 U CN 204089407U
- Authority
- CN
- China
- Prior art keywords
- motor housing
- steel plate
- outside diameter
- end cap
- housing
- 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 discloses a kind of fan electromotor, comprise motor housing and front and rear cover, front end housing and motor housing shaping by steel plate integrally stretching, rear end cap is also by formed by stretching steel plate, it is characterized in that: the medium design of front and rear cover becomes interior hole flanging structure, the middle Fitted Axles bearing of interior hole flanging, bearing pedestal is also by formed by stretching steel plate; The leading portion outside diameter that the corresponding magnetic shoe of motor housing is installed diminishes, and the back segment outside diameter of motor housing is constant, and the cylindrical of motor housing is pre-small post-large staged cylinder body shape, is provided with magnetic-leakage preventing overcoat at motor housing leading portion cylindrical fixed cover.The soluble technical problem of the utility model 1. can also form the bearing pedestal with enough degree of depth bearing bores when the front and rear cover of motor is height-limited on end cap, avoid end cap to be excessively stretched when bearing bore is shaping simultaneously, eliminate the generation of end cap cracking phenomena; 2. be not only conducive to the drawing and forming of electric machine casing but also solve motor flux leakage problem very well, motor profile can also keep the straight tube shape of original size.
Description
[technical field]
The utility model relates to a kind of radiator fan for car engine cooling system, is specifically related to a kind of fan electromotor.
[background technology]
In car engine cooling system, extensively use radiator fan, the critical component of radiator fan is fan electromotor.At present, the deficiency that fan electromotor mainly exists has: 1. the front and rear cover of motor is all pass through punching press by steel plate, the operation straight formings such as stretching and reach we require size, but some motors are restricted due to overall dimension, the front and rear cover of motor must be very compact, its requirement for height is just smaller, and the size constancy of motor bearings, this just needs to keep the depth dimensions of the bearing bore on end cap constant, in these cases, necessarily require end cap will do when shaping bearing bore significantly to stretch, end cap is caused to be excessively stretched when shaping, end cap cracking phenomena is general, 2. conventional motors shell is straight tube shape, for avoiding motor housing to occur leakage field, the thickness of the steel plate that motor housing adopts is general thicker, and this just causes motor housing more difficult when drawing and forming, if motor housing and front end housing one-body molded, there is technical barrier so especially.
[summary of the invention]
The utility model is implemented by the following technical programs:
A kind of fan electromotor, comprise motor housing and front and rear cover, front end housing and motor housing shaping by steel plate integrally stretching, rear end cap is also by formed by stretching steel plate, it is characterized in that: front end housing becomes interior hole flanging structure with the medium design of rear end cap, the middle Fitted Axles bearing of interior hole flanging, bearing pedestal is also by formed by stretching steel plate; The leading portion outside diameter that the corresponding magnetic shoe of described motor housing is installed diminishes, and the back segment outside diameter of motor housing is constant, and the cylindrical of motor housing is pre-small post-large staged cylinder body shape, is provided with magnetic-leakage preventing overcoat at motor housing leading portion cylindrical fixed cover.
The diameter of bore of described magnetic-leakage preventing overcoat is identical with motor housing leading portion outside diameter, and the outside diameter of magnetic-leakage preventing overcoat is identical with motor housing back segment outside diameter.
The steel plate thickness of described motor housing is 2mm, and the front and back section outside diameter difference of motor housing is 4mm, and the wall thickness of described magnetic-leakage preventing overcoat is 2mm.
The fan electromotor that the utility model provides, the Advantageous Effects reached is: 1. the front and rear cover of bearing pedestal and motor have employed Split type structure, the medium design of front and rear cover becomes interior hole flanging structure, then carry out press-fiting together with bearing pedestal, the hole flanging height of interior hole flanging can require to design according to end cap oneself height, avoid end cap when shaping, be excessively stretched the generation causing end cap cracking phenomena, and the height of bearing pedestal self is just very easy to obtain controlling only need meet the bearing bore degree of depth, so just solve the bearing pedestal that can also be formed on end cap when electric motor end cap is height-limited and there is enough degree of depth bearing bores, avoid end cap to be excessively stretched when bearing bore is shaping simultaneously, eliminate the generation of end cap cracking phenomena.2., because the setting of magnetic-leakage preventing overcoat, so the steel plate thickness of motor housing just can be thinning, be conducive to the drawing and forming of motor housing, then motor housing and front end housing also can together with carry out drawing and forming; Also have, the design that motor housing is pre-small post-large, can make the leading portion cylindrical of motor housing can be identical with the back segment excircle dimension of motor housing after magnetic-leakage preventing overcoat on cover, so motor housing or traditional straight tube shape, excircle dimension also can not become large, meets the installation needs of fan electromotor.
[accompanying drawing explanation]
The utility model has following accompanying drawing:
Fig. 1 is structural representation of the present utility model.
[embodiment]
As shown in the figure, fan electromotor of the present utility model, comprise motor housing 4, front end housing 6 and rear end cap 2, front end housing 6 is shaping by steel plate integrally stretching with motor housing 4, rear end cap 2 is also by formed by stretching steel plate, front end housing 6 becomes interior hole flanging structure with the medium design of rear end cap 2, the middle Fitted Axles bearing 1 of interior hole flanging, bearing pedestal 1 is also by formed by stretching steel plate, because bearing pedestal 1 and front and rear cover have employed Split type structure, so the stretching depth of the stretching depth of front and rear cover and bearing pedestal 1 is uncorrelated mutually, even if front and rear cover is height-limited, the bearing bore degree of depth of bearing pedestal 1 also can be met easily, the leading portion cylindrical 4a diameter that the corresponding magnetic shoe 3 of described motor housing 4 is installed diminishes, the back segment cylindrical 4b diameter of motor housing is constant, the cylindrical of motor housing 4 is pre-small post-large staged cylinder body shape, magnetic-leakage preventing overcoat 5 is provided with at motor housing leading portion cylindrical 4a fixed cover, the diameter of bore of described magnetic-leakage preventing overcoat 5 is identical with motor housing leading portion cylindrical 4a diameter, the outside diameter of magnetic-leakage preventing overcoat 5 is identical with motor housing back segment cylindrical 4b diameter, be specially: the steel plate thickness of described motor housing 4 is 2mm, for the half of conventional steel plates thickness 4mm, the front and back section outside diameter difference of motor housing is 4mm, the wall thickness of described magnetic-leakage preventing overcoat 5 is 2mm, the setting of magnetic-leakage preventing overcoat just in time counteracts due to thinning the brought leakage field problem of the steel plate of motor housing, make the monnolithic case of motor housing still keep straight tube shape simultaneously, and size constancy, meet the installation needs of fan electromotor on radiator fan.
Claims (3)
1. a fan electromotor, comprise motor housing and front and rear cover, front end housing and motor housing shaping by steel plate integrally stretching, rear end cap is also by formed by stretching steel plate, it is characterized in that: front end housing becomes interior hole flanging structure with the medium design of rear end cap, the middle Fitted Axles bearing of interior hole flanging, bearing pedestal is also by formed by stretching steel plate; The leading portion outside diameter that the corresponding magnetic shoe of described motor housing is installed diminishes, and the back segment outside diameter of motor housing is constant, and the cylindrical of motor housing is pre-small post-large staged cylinder body shape, is provided with magnetic-leakage preventing overcoat at motor housing leading portion cylindrical fixed cover.
2. a kind of fan electromotor as claimed in claim 1, is characterized in that: the diameter of bore of described magnetic-leakage preventing overcoat is identical with motor housing leading portion outside diameter, and the outside diameter of magnetic-leakage preventing overcoat is identical with motor housing back segment outside diameter.
3. radiator fan motor housing as claimed in claim 2, it is characterized in that: the steel plate thickness of described motor housing is 2mm, the front and back section outside diameter difference of motor housing is 4mm, and the wall thickness of described magnetic-leakage preventing overcoat is 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420567783.7U CN204089407U (en) | 2014-09-27 | 2014-09-27 | A kind of fan electromotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420567783.7U CN204089407U (en) | 2014-09-27 | 2014-09-27 | A kind of fan electromotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204089407U true CN204089407U (en) | 2015-01-07 |
Family
ID=52182075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420567783.7U Expired - Fee Related CN204089407U (en) | 2014-09-27 | 2014-09-27 | A kind of fan electromotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204089407U (en) |
-
2014
- 2014-09-27 CN CN201420567783.7U patent/CN204089407U/en not_active Expired - Fee Related
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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: 20150107 Termination date: 20150927 |
|
| EXPY | Termination of patent right or utility model |