CN203027055U - Whirlwind type electromotor fan cover - Google Patents
Whirlwind type electromotor fan cover Download PDFInfo
- Publication number
- CN203027055U CN203027055U CN 201220699559 CN201220699559U CN203027055U CN 203027055 U CN203027055 U CN 203027055U CN 201220699559 CN201220699559 CN 201220699559 CN 201220699559 U CN201220699559 U CN 201220699559U CN 203027055 U CN203027055 U CN 203027055U
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- CN
- China
- Prior art keywords
- fan cover
- fan housing
- fan
- cyclone type
- dowel
- 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 whirlwind type electromotor fan cover which is arranged at the tail part of an axial case of an electromotor. The whirlwind type electromotor fan cover comprises a fan cover tube and a fan cover window, wherein the fan cover window comprises a plurality of air inlets, a central piece is arranged at the center of the fan cover window, and a plurality of concentric round fillets and a plurality of connecting fillets connected with the round fillets are arranged by taking the central piece as the center of a circle; and the connecting fillets are outward radiated from the central piece and are evenly arranged along the circumference. The arrangement shape of the air inlets of the whirlwind type electromotor fan cover is whirlwind, and the air inlet area of the fan cover window with the equal diameter can be increased by 8-25% compared with the square bracket fan cover window, thus achieving better cooling effect. The area of single air inlet is increased on average compared with the square bracket fan cover window, so that the stickiness characteristic of the inlet air can be reduced, and the air inlet speed can be improved. A large chamfer structure is arranged at the tail end of the electromotor fan cover, so that the vortex friction loss of air between a fan and the fan cover can be helpfully reduced, and the efficiency of the fan can be improved. The fan cover tube adopts an octagonal structure combining an eccentric circle and beveled edges, and is matched with the radiating fillets of the case in shape, so that the radiating capability of the whirlwind type electromotor fan cover can be enhanced.
Description
Technical field
The utility model relates to a kind of cyclone type motor fan cover, belongs to technical field of motors.
Background technology
All the electromechanical testing standard is revised both at home and abroad now, on the test problem of electric efficiency, substantially all require to adopt actual measurement resistance to calculate copper loss, the heat-sinking capability of motor directly affects the size of motor resistance, also just directly affect the size of motor copper loss, so the heat-sinking capability of motor is paid attention to by people progressively, in order to improve the heat-sinking capability of motor, all be provided with fresh air inlet on motor fan cover, when making the rotation of fan housing internal fan, can form cross-ventilation inside and outside motor.Louvre in prior art on motor fan cover passes through horizontal stroke, rib consists of longitudinally, is criss-cross, and radiating efficiency is low.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of cyclone type motor fan cover, has changed the shape of traditional fan housing fresh air inlet and fan housing cylinder, has improved heat-sinking capability.
For solving the problems of the technologies described above, the utility model provides a kind of cyclone type motor fan cover, be arranged on motor reel to the afterbody of casing, comprise fan housing cylinder and the fan housing window that is arranged on fan housing cylinder distal end faces, comprise a plurality of fresh air inlets on the fan housing window, it is characterized in that, described fan housing window center is established a centre slice, take centre slice as the center of circle, many circular concentric ribs are set are connected the dowel of each circular rib with Duo Gen; Dowel, and is arranged along even circumferential to external radiation by centre slice.
Described dowel is the arc to same direction bending.
Described circular rib is divided into a plurality of zones with the fan housing window, the radiation from inside to outside of the dowel in each zone, and arranging along even circumferential, and the area of cutting apart by circular rib, dowel the fresh air inlet that forms in each zone is outwards increased by the center.
Each fresh air inlet that described circular rib, dowel consist of is stated and is four arc-shaped sides.
The end of described fan housing cylinder arranges chamfering.
The octagonal tubular structure that described fan housing cylinder adopts off-centre operation cambered surface and inclined-plane to combine.
Described off-centre operation cambered surface and inclined-plane combine two off-centre operation cambered surface areas of the upper and lower off-centre operation cambered surface of octagon fan housing cylinder and both sides greater than all the other four inclined-planes.
Described fan housing window is circular.
The beneficial effect that the utility model reaches:
1, the utility model cyclone type motor fan cover fresh air inlet spread geometry is cyclone type, and the comparable criss-cross of the prior art of same diameter fan housing window air-out area (8*8) promotes 8-25%, thereby reaches better cooling effect.
2, on the other hand, the increase to some extent of its average single fresh air inlet Area Ratio grid can reduce the viscosity property of air intake, improves intake velocity.
3, the motor fan cover end arranges large chamfering structure, is conducive to reduce the eddy current frictional dissipation of wind between fan and fan housing, improves fan efficiency.
4, the fan housing cylinder adopts the eight-sided formation that off-centre operation and hypotenuse combine, and matches with the shape of casing radiating ribs, can improve its heat-sinking capability.
Description of drawings
Fig. 1 is motor front view of the present utility model;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is fan housing window enlarged diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.Following examples only are used for the technical solution of the utility model more clearly is described, and can not limit protection range of the present utility model with this.
As shown in Figure 1 and Figure 2, cyclone type motor fan cover of the present utility model is arranged on motor reel to the afterbody of casing 2, comprises fan housing cylinder 1 and the fan housing window 2 that is arranged on the circle on fan housing cylinder 1 distal end faces.As shown in Figure 4, comprise numerous fresh air inlet 3 on fan housing window 2, fresh air inlet 3 spread geometries are cyclone type, and a centre slice 4 is established at fan housing window 2 centers, take centre slice 4 as the center of circle, many circular concentric ribs 31 are connected each circular rib 31 with Duo Gen dowel 32 is set.Dowel 32, and is arranged along even circumferential to external radiation by centre slice 4.The larger dowel of several diameters can be set as main dowel 320 in many dowels 32.
Better scheme is by circular rib 31, fan housing window 2 to be divided into a plurality of regional 5,6, dowel 32 radiation from inside to outside in each zone, and arrange along even circumferential, and it is outwards increasing by the center to cut apart the area of the fresh air inlet 3 that forms by circular rib 31, dowel 32 in each zone.
Better scheme is that dowel 32 is unidirectional arc, makes the four edges of each fresh air inlet 3 that is made of circular rib 31, arc dowel 32 be arc, and the fresh air inlet 3 that a plurality of arc-shaped sides consist of is arranged and formed the cyclone type shape.Fan housing window 2 air-out areas promote 8-25% than criss-cross of the prior art, can reach better cooling effect.Single fresh air inlet Area Ratio criss-cross of the prior art increases to some extent, can reduce the viscosity property of air intake, improves intake velocity.
The end of fan housing cylinder 1 arranges large chamfering 11 structures, is conducive to reduce the eddy current frictional dissipation of wind between fan and fan housing, improves fan efficiency.
As shown in Figure 3, Figure 4; usually the radiating ribs 21 on casing 2 is distributed in casing 2 outer surface tops, lower position and two sides, and traditional fan housing side surrounds is shaped as cylindrical shape, after fan housing is assembled to the casing end; the radiating ribs 211 of protruding along the fan housing sidewall is highly different, is unfavorable for heat radiation.The utility model is designed to octagonal tubular structure with fan housing cylinder 1 shape that the fan housing side surrounds, the side of octagon fan housing cylinder 1 is eight faces, two cambered surface areas on upper and lower two cambered surfaces and both sides are larger, match with the shape of radiating ribs 21 on casing 2, make the radiating ribs 211 of protruding along fan housing cylinder 1 sidewall highly close or identical, the whirlwind that the fan rotation is produced transfers to from fan housing window 2 radiating ribs that radial distributes, and can improve its heat-sinking capability.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and distortion, these improvement and distortion also should be considered as protection range of the present utility model.
Claims (8)
1. cyclone type motor fan cover, be arranged on motor reel to the afterbody of casing, comprise fan housing cylinder and the fan housing window that is arranged on fan housing cylinder distal end faces, comprise a plurality of fresh air inlets on the fan housing window, it is characterized in that, described fan housing window center is established a centre slice, take centre slice as the center of circle, many circular concentric ribs is set is connected the dowel of each circular rib with Duo Gen; Dowel, and is arranged along even circumferential to external radiation by centre slice.
2. cyclone type motor fan cover according to claim 1, is characterized in that, described dowel is the arc to same direction bending.
3. described cyclone type motor fan cover according to claim 1 and 2, it is characterized in that, described circular rib is divided into a plurality of zones with the fan housing window, the radiation from inside to outside of dowel in each zone, and arrange along even circumferential, and the area of cutting apart by circular rib, dowel the fresh air inlet that forms in each zone is outwards increased by the center.
4. cyclone type motor fan cover according to claim 3, is characterized in that, each fresh air inlet that described circular rib, dowel consist of is stated and is four arc-shaped sides.
5. cyclone type motor fan cover according to claim 1, is characterized in that, the end of described fan housing cylinder arranges chamfering.
6. cyclone type motor fan cover according to claim 1, is characterized in that, the octagonal tubular structure that described fan housing cylinder adopts off-centre operation cambered surface and inclined-plane to combine.
7. cyclone type motor fan cover according to claim 6, is characterized in that, described off-centre operation cambered surface and inclined-plane combine two off-centre operation cambered surface areas of the upper and lower off-centre operation cambered surface of octagon fan housing cylinder and both sides greater than all the other four inclined-planes.
8. cyclone type motor fan cover according to claim 1, is characterized in that, described fan housing window is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220699559 CN203027055U (en) | 2012-12-18 | 2012-12-18 | Whirlwind type electromotor fan cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220699559 CN203027055U (en) | 2012-12-18 | 2012-12-18 | Whirlwind type electromotor fan cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203027055U true CN203027055U (en) | 2013-06-26 |
Family
ID=48651003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220699559 Expired - Fee Related CN203027055U (en) | 2012-12-18 | 2012-12-18 | Whirlwind type electromotor fan cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203027055U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105588232A (en) * | 2015-03-31 | 2016-05-18 | 青岛海信日立空调***有限公司 | Air conditioner air outlet structure |
| CN105830829A (en) * | 2016-03-24 | 2016-08-10 | 周玉红 | Rotary type wind curl forming cylinder |
-
2012
- 2012-12-18 CN CN 201220699559 patent/CN203027055U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105588232A (en) * | 2015-03-31 | 2016-05-18 | 青岛海信日立空调***有限公司 | Air conditioner air outlet structure |
| CN105588232B (en) * | 2015-03-31 | 2019-05-10 | 青岛海信日立空调***有限公司 | A kind of air conditioning exhausting structure |
| CN105830829A (en) * | 2016-03-24 | 2016-08-10 | 周玉红 | Rotary type wind curl forming cylinder |
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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: 20130626 Termination date: 20151218 |
|
| EXPY | Termination of patent right or utility model |