CN204299907U - The external rotor fan of backing plate strengthened by band - Google Patents
The external rotor fan of backing plate strengthened by band Download PDFInfo
- Publication number
- CN204299907U CN204299907U CN201420782578.2U CN201420782578U CN204299907U CN 204299907 U CN204299907 U CN 204299907U CN 201420782578 U CN201420782578 U CN 201420782578U CN 204299907 U CN204299907 U CN 204299907U
- Authority
- CN
- China
- Prior art keywords
- backing plate
- reinforcement backing
- frame
- blade
- external rotor
- 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 fan technology field, specifically a kind of external rotor fan with strengthening backing plate, comprise motor, blade, fixing bolt and locking nut, it is characterized in that the frame inwall of described motor is provided with reinforcement backing plate, described reinforcement backing plate is positioned between adjacent two blades, described reinforcement backing plate is provided with two attachment holes, the mounting hole that described reinforcement backing plate is provided with through blades installation seat through fixing bolt respectively, the attachment hole that frame is provided with reinforcement backing plate is fixedly connected with blade with frame, greatly strengthen the mechanical strength of adjacent two interlobate framies, solve the deficiency that this place is easily cracked, also save material simultaneously, there is structure simple, easy for installation, save material, mechanical strength is up to standard, steady performance.
Description
Technical field
The utility model relates to fan technology field, specifically a kind of external rotor fan with strengthening backing plate.
Background technique
As everyone knows, existing external rotor fan is provided with blade at the frame outer wall of motor to form, the external diameter of the fan that our company produces is Φ 1372mm, the housing diameter of external rotor electric machine is about 600mm, employing cast aluminium alloy is made, fan blade is bolted on shell with 2, and the cast aluminium shell of the motor that is in operation is easy to cracked, fan disintegration and failure.Reason is searched in analysis, and conclusion is, motor cast-aluminum enclosure material mechanical strength is below standard.1000 multiple stage but this product has dispatched from the factory.Just in use, this external rotor fan, the only every platform of the price of motor nearly 40,000 yuan, all recall replacing, economic loss is huge, and the cycle is long, and user can't wait, and has become a great problem.
To this problem, analyze the remains destroyed further, check cracked position, all between two blades.Because a blade is bolted on shell with 2, the shell of this part is strengthened, but the shell between two blades has become weak link, so can be cracked at this place.
Summary of the invention
The purpose of this utility model solves above-mentioned the deficiencies in the prior art, provide a kind of structure simple, easy for installation, save the external rotor fan that material, mechanical strength are up to standard, backing plate strengthened by the band of stable performance.
The utility model solves the technological scheme that its technical problem adopts:
A kind of external rotor fan with strengthening backing plate, comprise motor, blade, fixing bolt and locking nut, it is characterized in that the frame inwall of described motor is provided with reinforcement backing plate, described reinforcement backing plate is positioned between adjacent two blades, described reinforcement backing plate is provided with two attachment holes, the mounting hole that described reinforcement backing plate is provided with through blades installation seat through fixing bolt respectively, the attachment hole that frame is provided with reinforcement backing plate is fixedly connected with blade with frame, greatly strengthen the mechanical strength of adjacent two interlobate framies, solve the deficiency that this place is easily cracked, also save material simultaneously.
Reinforcement backing plate described in the utility model is curved, and the arc shaped surface of the arc shaped surface of described reinforcement backing plate and the frame inwall of motor matches, to reach the effect of stable performance further.
The utility model owing to adopting said structure, have structure simple, easy for installation, save that material, mechanical strength are up to standard, steady performance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the enlarged view in Fig. 1.
Fig. 3 is the structural representation strengthening backing plate in the utility model.
Fig. 4 is the plan view of Fig. 3.
Reference character: motor 1, blade 2, fixing bolt 3, locking nut 4, frame 5, reinforcement backing plate 6.
Embodiment
Below in conjunction with specific embodiment, the utility model is further illustrated:
As shown in Figure 1, a kind of external rotor fan with strengthening backing plate, comprise motor 1, blade 2, fixing bolt 3 and locking nut 4, it is characterized in that frame 5 inwall of described motor 1 is provided with and strengthen backing plate 6, described reinforcement backing plate 6 is positioned between adjacent two blades 2, described reinforcement backing plate 6 is provided with two attachment holes, described reinforcement backing plate 6 is respectively through mounting hole that fixing bolt 3 is provided with through blade 2 fitting seat, the attachment hole that frame 5 is provided with reinforcement backing plate 6 is fixedly connected with blade 2 with frame 6, greatly strengthen the mechanical strength of adjacent two interlobate framies, solve the deficiency that this place is easily cracked, also save material simultaneously.
Reinforcement backing plate 6 described in the utility model is curved, and the arc shaped surface of the arc shaped surface of described reinforcement backing plate 6 and frame 5 inwall of motor matches, to reach the effect of stable performance further.
The utility model when mounted, just the mounting hole on blade 2 fitting seat aimed at by fixing bolt 3, fixed hole on frame 5 inserts, reinforcement backing plate 6 one attachment hole is enclosed within after on fixing bolt 3 by inside again, fastening by locking nut 4, in like manner, another mounting hole again on stator blade 2 fitting seat, after another fixing bolt 3 is inserted, again another attachment hole strengthened in backing plate 6 is enclosed within after on this fixing bolt 3, entered by another locking nut 4, by above-mentioned same method, rest blade 2 is installed, the weak link of the frame 5 between adjacent blades 2 is strengthened, not only ensure that the mechanical strength of frame 5, solve the deficiency that this place is easily cracked, also save material simultaneously.
The utility model owing to adopting said structure, have structure simple, easy for installation, save that material, mechanical strength are up to standard, steady performance.
Claims (2)
1. the external rotor fan with strengthening backing plate, comprise motor, blade, fixing bolt and locking nut, it is characterized in that the frame inwall of described motor is provided with reinforcement backing plate, described reinforcement backing plate is positioned between adjacent two blades, described reinforcement backing plate is provided with two attachment holes, and the attachment hole that the mounting hole that described reinforcement backing plate is provided with through blades installation seat through fixing bolt respectively, frame are provided with reinforcement backing plate is fixedly connected with blade with frame.
2. a kind of external rotor fan with strengthening backing plate according to claim 1, it is characterized in that described reinforcement backing plate is curved, the arc shaped surface of the arc shaped surface of described reinforcement backing plate and the frame inwall of motor matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420782578.2U CN204299907U (en) | 2014-12-12 | 2014-12-12 | The external rotor fan of backing plate strengthened by band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420782578.2U CN204299907U (en) | 2014-12-12 | 2014-12-12 | The external rotor fan of backing plate strengthened by band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204299907U true CN204299907U (en) | 2015-04-29 |
Family
ID=53105451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420782578.2U Expired - Fee Related CN204299907U (en) | 2014-12-12 | 2014-12-12 | The external rotor fan of backing plate strengthened by band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204299907U (en) |
-
2014
- 2014-12-12 CN CN201420782578.2U patent/CN204299907U/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: 20150429 Termination date: 20151212 |
|
| EXPY | Termination of patent right or utility model |