CN201238219Y - Ventilation flue structure of AC compact electric motor - Google Patents
Ventilation flue structure of AC compact electric motor Download PDFInfo
- Publication number
- CN201238219Y CN201238219Y CNU200820151364XU CN200820151364U CN201238219Y CN 201238219 Y CN201238219 Y CN 201238219Y CN U200820151364X U CNU200820151364X U CN U200820151364XU CN 200820151364 U CN200820151364 U CN 200820151364U CN 201238219 Y CN201238219 Y CN 201238219Y
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Abstract
The utility model relates to an air trunk structure for AC compact motors, which comprises three cooling air ducts, i.e. a stator air duct inside the stator core, a rotator air duct and an air gap; wherein, the stator duct is formed by assembling the stator lamination. The air trunk structure is characterized in that the stator lamination is quadrangular with an internally tangent ring and air holes on the surface, and the air holes are radially distributed in the triangular area of the stator lamination corners. The air trunk structure realizes the high-efficiency cooling for the motor and reduces the motor cost.
Description
Technical field
The utility model relates to a kind of interchange compact(ing) machine wind path structure.
Background technology
Good ventilation effect is one of key factor that improves motor electricity, magnetic loading and motor material utilance, and the employing of traditional Y2 alternating current machine is casing surface cool mode, be that the heat that produces in the motor is delivered to the casing surface by other heat-conduction components such as motor internal air circulation and stator cores, and the mode of being taken away by the axial flow that axially blower fan or fan produce.There are two shortcomings in this mode, one, because the casing surface is an open type, axial air quantity has bigger loss in advancing, and this causes the temperature of air-flow rear portion motor higher, is unfavorable for the Homogeneouslly-radiating of motor; Its two, if electric machine iron core and casing contact-making surface closely do not leave air-gap, because the bad thermal conductivity of air can increase the difficulty that heat distributes to the motor outside; Can improve above problem by the air quantity of increase blower fan and suitable technology, but this can make the overall cost of motor rise, and is in a disadvantageous position in market.
The utility model content
In order to overcome the deficiency that above-mentioned prior art exists, the utility model aims to provide a kind of interchange compact(ing) machine wind path structure, to be used for the efficient cooling of motor.
A kind of interchange compact(ing) machine wind path structure described in the utility model, comprise three cooling air channels, be stator air duct, rotor ventilation road and the air gap of stator core inside, wherein said stator air duct forms by the stator punching closed assembly, it is characterized in that: described stator punching is the quadrangle form that inscribe has an annulus, its surface has ventilation hole, and described ventilation hole radially distributes in the delta-shaped region of four jiaos of stator punchings.
In above-mentioned interchange compact(ing) machine wind path structure, described stator air duct is logical to be enclosed construction.
In above-mentioned interchange compact(ing) machine wind path structure, the quadrangle form of described stator punching is a square.
Owing to adopted above-mentioned technical solution, the utility model is under the situation of guaranteeing stator punching rigidity, the ventilation hole of sufficient amount rationally is set in punching, laminate formation axial ventilation road by iron core, because this air duct is enclosed, guaranteed the air quantity of wind path end to greatest extent, and compare the casing surface, air duct is positioned at stator core inside, and is near from the motor thermal source, can significantly improve the motor radiating effect, in addition, because this structure has replaced casing surface cool mode, can save the support of heavy band radiating ribs, can save certain motor cost.
Description of drawings
Fig. 1 is a kind of schematic diagram that exchanges compact(ing) machine wind path structure of the utility model;
Fig. 2 is the structural representation that the utility model exchanges the stator punching of compact(ing) machine.
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
See also Fig. 1, Fig. 2, the utility model, it is a kind of interchange compact(ing) machine wind path structure, comprise three cooling air channels, be stator air duct (not shown), rotor ventilation road (not shown) and the air gap (not shown) of stator core 1 inside, wherein the stator air duct forms by stator punching 11 closed assemblies, be enclosed construction, stator punching 11 has the quadrangle form of an annulus for inscribe, its surface has ventilation hole 12, and ventilation hole 12 radially distributes in the delta-shaped region 13 of 11 4 jiaos of stator punchings.The inner circumferential surface of stator punching 11 is evenly towards grooved hole 14.
In the utility model, the quadrangle form of stator punching 11 is a square; And the shape of its surperficial ventilation hole 12 and distribution pattern produce decisive influence to the heat radiation of motor.
As shown in Figure 1, the type of cooling of interchange compact(ing) machine of the present utility model is a forced air cooling, air stream is blown into motor internal by the striding type blower fan from the rear end, air-flow is taken away heat when flowing through stator core 1, rotor core 2, and shutter 3 discharge motors from being located at the front end both sides, the stator air duct of motor internal is main cooling air duct, and by rational design, this air duct can guarantee that motor temperature under normal running (operation) conditions remains in the limited field always.
As shown in Figure 2, the special construction of stator punching 11 is guaranteeing stator yoke portion size and is guaranteeing under the situation of punching rigidity, increased the area of ventilation hole 12 to greatest extent, for the efficiently radiates heat of motor provides good condition, in addition, compare the common electric machine stator punching and be removed as waste material for four jiaos, the stock utilization of this class formation motor has improved much undoubtedly.
Such degree of protection that exchanges compact(ing) machine is IP23, promptly can prevent that diameter from entering motor internal greater than the foreign matter of 12mm this moment, and permission becomes the trickle in 60 ° of angular regions with plumb line.In this type of environment, select for use the motor of aeration structure described in the utility model can bring tangible benefit, because under the situation of equal-wattage and identical number of poles, this motor center Gao Gengxiao, average specific Y2 serial motors reduces 1-2 seat No..In addition, because power and torque have obtained large increase, it is also not a halfpenny the worse that its overload capacity is compared with direct current machine, adds the stepless speed regulation under the Frequency Converter Control, makes it become the good substitute products of direct current machine.
In sum, the utility model has been realized the efficient cooling of motor, and has reduced motor cost.
Below embodiment has been described in detail the utility model in conjunction with the accompanying drawings, and those skilled in the art can make the many variations example to the utility model according to the above description.Thereby some details among the embodiment should not constitute qualification of the present utility model, and the scope that the utility model will define with appended claims is as protection range of the present utility model.
Claims (3)
1. interchange compact(ing) machine wind path structure, comprise three cooling air channels, be stator air duct, rotor ventilation road and the air gap of stator core inside, wherein said stator air duct forms by the stator punching closed assembly, it is characterized in that: described stator punching is the quadrangle form that inscribe has an annulus, its surface has ventilation hole, and described ventilation hole radially distributes in the delta-shaped region of four jiaos of stator punchings.
2. interchange compact(ing) machine wind path structure according to claim 1 is characterized in that: described stator air duct is logical to be enclosed construction.
3. interchange compact(ing) machine wind path structure according to claim 1 and 2 is characterized in that: the quadrangle form of described stator punching is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820151364XU CN201238219Y (en) | 2008-07-29 | 2008-07-29 | Ventilation flue structure of AC compact electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820151364XU CN201238219Y (en) | 2008-07-29 | 2008-07-29 | Ventilation flue structure of AC compact electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201238219Y true CN201238219Y (en) | 2009-05-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820151364XU Expired - Fee Related CN201238219Y (en) | 2008-07-29 | 2008-07-29 | Ventilation flue structure of AC compact electric motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201238219Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332762A (en) * | 2011-05-25 | 2012-01-25 | 许宏伟 | Outer-rotor-type automobile drive motor |
| CN102328579A (en) * | 2011-05-25 | 2012-01-25 | 许宏伟 | Vehicle driving motor with electric antilock braking device |
-
2008
- 2008-07-29 CN CNU200820151364XU patent/CN201238219Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332762A (en) * | 2011-05-25 | 2012-01-25 | 许宏伟 | Outer-rotor-type automobile drive motor |
| CN102328579A (en) * | 2011-05-25 | 2012-01-25 | 许宏伟 | Vehicle driving motor with electric antilock braking device |
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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: 20090513 Termination date: 20160729 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |