CN203039501U - Motor - Google Patents
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- Publication number
- CN203039501U CN203039501U CN 201320004902 CN201320004902U CN203039501U CN 203039501 U CN203039501 U CN 203039501U CN 201320004902 CN201320004902 CN 201320004902 CN 201320004902 U CN201320004902 U CN 201320004902U CN 203039501 U CN203039501 U CN 203039501U
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- Prior art keywords
- stator
- motor
- gas channel
- orthographic projection
- opposite side
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- 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.)
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Abstract
The utility model provides a motor, which comprises a stator (3), a base (2) and a cooler arranged at one side of the base. An airflow passage (5) is formed between the other side (7) of the base opposite to the cooler and the stator (3). The distance between the bottom part (4) of the airflow passage and the periphery of the stator (3) is at least the same, or gradually increased partially or totally on the length (L) from the orthographic projection position (A) of the stator center (R) on the other side (7) to the orthographic projection position of the radial end part (Z) of the stator on the other side (7).
Description
Technical field
The utility model relates to a kind of motor, more specifically, relates to a kind of motor that has improved cooling structure.
Background technology
At motor (or generator in the market; in order to simplify description; the utility model is that example is described with the motor; but protection range of the present utility model should comprise motor and two kinds of situations of generator at least) in the running; because stator core and the interpleural air-flow of electric machine stand very chaotic (seeing the chaotic arrow that indicates among Fig. 1), therefore being difficult to effectively derives the hot-air that produces in the stator.When motor moved under these circumstances, the temperature of stator bottom may rise sooner than the top, thereby causes the stator bottom temp higher.In addition, the higher temperature in stator bottom also may influence its insulation property to a great extent, thereby influences the useful life of motor.
The utility model content
The utility model provides a kind of motor (it comprises in general sense motor and generator at least), it comprises stator, support and is arranged at the cooler of described support one side, form gas channel between the opposite side relative with described cooler of described support and the described stator, wherein, from stator center in the position of the orthographic projection on the described opposite side to the longitudinal end of stator on the length of the position of the orthographic projection on the described opposite side, the bottom of described gas channel is consistent at least or local with distance between the periphery of described stator or all increase gradually.
In one embodiment, described gas channel is passing width on described stator center and the direction vertical with the direction of described orthographic projection at the width on the described orthographic projection direction of described stator center smaller or equal to described gas channel.
In one embodiment, from stator center in the position of the orthographic projection on the described opposite side at least on 1/4th stator periphery arc length of a side, the bottom of described gas channel is consistent at least or local with distance between the periphery of described stator or all increase gradually.
In one embodiment, the cross section of the bottom of described gas channel is the shape of involute.
In one embodiment, the bottom of described gas channel is connected with the mild transition of the wall of described support.
In one embodiment, the cross section of the bottom of described gas channel being combined to form by some sections line segments and some sections circular arcs.
In one embodiment, at least towards the wall of a side to described support, the cross section of the bottom of described gas channel comprises one section line segment, one section circular arc and another section line segment from the position of the orthographic projection of stator center on described opposite side.
In one embodiment, at least towards the wall of a side to described support, the cross section of the bottom of described gas channel comprises one section line segment and one section circular arc from the position of the orthographic projection of stator center on described opposite side.
In one embodiment, the periphery of described stator is provided with mounting rail, and described mounting rail is placed in away from the position that becomes 90 degree on the stator periphery with the orthographic projection direction of described stator center on described opposite side.
Description of drawings
Fig. 1 illustrates a kind of structure of existing motor;
Fig. 2 illustrates the cutaway view according to the electric machine structure of a kind of execution mode of the utility model;
Fig. 3 illustrates the cutaway view according to the electric machine structure of the another kind of execution mode of the utility model;
Fig. 4 illustrates the schematic diagram according to the electric machine structure of another execution mode of the utility model; With
Fig. 5 illustrates the schematic diagram according to the electric machine structure of another execution mode of the utility model.
Embodiment
Below with reference to accompanying drawing, the specific descriptions of optional execution mode of the present utility model have been provided.
As shown in Figure 2, motor comprises support 2, stator 3 and is arranged at the cooler (not shown) of support 2 one sides.In the present embodiment, cooler is arranged at the top of support.But according to the kind of motor and the different demands of design, cooler also can place left side, right side or the downside of support.In order to simplify description, following description is example with structure shown in Figure 2, but should be appreciated that the claim of the utility model requirement has contained various situations and modification.
In Fig. 2, a side 7 relative with cooler of support 2 is provided with side plate 4, thereby forms gas channel 5 between the outer surface of side plate 4 and stator 3, and side plate 4 is therefore as the bottom of gas channel 5.Here should be appreciated that side plate 4 can form as one with support 2 becomes the part of support 2, perhaps side plate 4(or be referred to as wind deflector) can be independent parts, be attached on the support 2, both of these case is all in protection range of the present utility model.In order to simplify description, all no longer give repetition in specification of the present utility model and the claim.In addition, should be appreciated that as previously mentioned that cooler may place the different azimuth of support, thereby therefore side plate 4 also may place the different azimuth of stator, thereby form the gas channel that is positioned at different azimuth.But in order to simplify description, below be that example is described with structure shown in Figure 2 only, contain various structures but protection range of the present utility model is appreciated that, and be not limited to illustrated structure.
In order to overcome the problems of the prior art, the shape that the utility model proposes side plate 4 is designed so that side plate 4(is the bottom of gas channel 5) and the periphery of stator 3 between distance increase gradually from bottom to up, thereby form the gradually gas channel 5 of open form.Herein, be the boundary with stator center R, the left and right sides is symmetry substantially, and therefore following will be that example is described with the right side.For the asymmetric situation in the left and right sides, the technical solution of the utility model also is applicable to wherein at least one side.
Particularly, be positioned at the position A of stator center R under roughly from side plate 4, be positioned at the position K of stator right-hand member Z under roughly to side plate 4, namely stator center R the orthographic projection on the support bottom to stator right-hand member Z on the length L between the orthographic projection on the support bottom, side plate 4 equates at least with distance between the stator 3 or is local or all increase gradually, that is to say, side plate equates at least with distance between the stator center R or is local or all increase gradually, thereby forms at least evenly or the gas channel 5 that increases gradually.In Fig. 2, side plate 4 further extends, and links to each other to seamlessly transit at a D place with the sidewall of support 2, thereby gas channel 5 is further extended.The gas channel 5 that this lateral plate structure forms can be realized more effective cooling channel, as the fan housing of same centrifugal fan.
By this structure, can realize lower motor production cost.Because hot-air will be radiated and in motor operation course, therefore utilize in the running blast of self air-flow can be conducive to heat radiation, and only need a less cooler just can realize.In brief, under the prerequisite that does not increase the production technology cost, radiating efficiency is improved to a certain extent.In addition, because temperature rise ratio the past is low, stator core is shorter also, can directly reduce the cost of stator core like this.Further, come because hot-air is more prone to be exported effectively, this design can improve the thermal environment of stator Lower Half in the motor operation course.Therefore, because the side effect that heat aging produces is weakened, the reliability of insulating material also will improve.In addition, the Temperature Distribution of stator top and bottom becomes more even.
Herein, in order to make the position of gas channel 5 on the K point can not be subjected to too much restriction, the distance R E of the preferred position E that makes from stator center R to side plate 4 the approximate horizontal that is positioned at stator center is more than or equal to 4 the distance R A that is positioned at the position A of stator center under roughly from stator center R to side plate.
Certainly, in order further to improve the effect of passage 5, the shape of side plate 4 can be designed so that the D point that the position A of stator center R under roughly engages with the sidewall of support 2 to side plate 4 that is positioned at from side plate, side plate equates at least with distance between the stator center R or is local or all increase gradually, to be the bottom of gas channel 5 with distance between the stator periphery equate at least or local or all increase gradually, as shown in Figure 3.
More preferably, as shown in Figure 4, the shape of side plate 4 can be designed to be positioned at the position A of stator center R under roughly to the position E of the approximate horizontal that is positioned at stator center R of side plate 4 from side plate 4, namely on the quadrant arc length degree of position A, side plate equates at least with distance between the stator center R or is local or all increase gradually.Like this, because the position more than the E point, the sidewall of side plate 4 or support 2 and the distance between the stator also increase gradually, so can realize the increase gradually of whole gas channel 5, thereby stable more, the discharge effectively of the thermal current that helps the bottom is to improve radiating efficiency.More preferably, the shape of involute can be in the scope from A to E, side plate 4 be designed to, thereby the steady increase of gas channel 5 can be guaranteed.
Certainly, may can improve processing cost owing to the shape that the restriction of process equipment at present causes side plate 4 being processed into involute.For this consideration, also can consider the side plate 4 of involute design is carried out match, thus simplified design and cutting down finished cost.A kind of exemplary match is simplified referring to shown in Figure 5.On the support side plate cross section shown in Fig. 5, the A point is to being straight line between the B point; The B point is between the C point being a circular arc centered by W; The C point is between the D point being one section straight line again, and the D point is above to be overlapped with the support sidewall or become the support sidewall.Below be a kind of exemplary concrete fit procedure, but this process should not be construed as any restriction of the present utility model.
As shown in Figure 5, getting the center of circle that R is stator, is that the center of circle, RS are that the roundlet of radius is the stator outer diameter profile with R, and RA is the motor center height height of a floor (the stator distance of center circle disembark), and RE is the half-breadth (the stator distance of center circle is from the distance of side plate) of support.Cross E and make vertical line segment EF, make 0＜=| EF|＜| RA|.Be tangential on AJ and EF and with the EF point of contact be the round W of F, the point of contact of circle W and AJ is B.The extended line of RW is C with the intersection point of circle W, crosses the tangent line GD (wherein G is the intersection point of horizontal line AJ and GD, and D is the intersection point of GD and EF extended line) that C makes circle W.This moment, section along the line AB, arc BC and line segment CD constituted the sweep of the design's side plate.
If T for this reason on the path more arbitrarily, TU was that T point points to the tangent line outside the support, can prove that RTU one is decided to be the obtuse angle, blew out the wind of (stator radial radiation) so along RT, beat on side plate, will upwards be led.If in theory | EF| enough little (even being close to 0), C, D, E, F four coincidence of naming a person for a particular job, W will drop on the RE, and the path A BCD of this moment has reached the maximization of effective guiding length.
Replacedly, also can adopt circular arc centered by W fully from B to E, and be the structure of straight line from A to B.
Certainly, also can adopt other match mode, for example make that the cross section of whole side plate is the combination of some line segments and some circular arcs, for example combination of two sections line segments and two sections circular arcs.In order to simplify description, enumerate no longer one by one here.
In the actual production, by the schematic diagram of stator among Fig. 3 as can be seen, on the stator mounting rail 6 may be set, so may make that guiding air outlet (for Fig. 5, namely crossing the position that D is ordered) is too small.By increasing the length of EF, when shortening the wind-guiding path on a small quantity, can be so that air outlet increases.But the length of EF is unsuitable excessive, and the concrete length of EF can be determined by actual conditions (for example by modes such as wind path emulation).
In addition, arrange under the situation of mounting rail 6 or other similar structures in consideration, these beams are distributed according to correct position, will be conducive to gas channel 5 and become gradually greatly, thereby reach excellent as far as possible radiating effect.Shown in Fig. 2 or 3, mounting rail 6 can be placed as far as possible the position between A point and the E point, and avoid the E point and near.
Though should be appreciated that above with motor in order to be described, the utility model said " motor " should also be contained " generator ".In order to simplify description, will not distinguish among the application, still take " generator " of this structure also in coverage of the present utility model.
Though illustrate and described the utility model with reference to some preferred embodiment of the present utility model, but it will be appreciated by those skilled in the art that, under the situation that does not deviate from the spirit and scope of the present utility model that limited by appended claims, can make a variety of changes it in the form and details.
Claims (10)
1. motor, comprise stator (3), support (2) and be arranged at the cooler of described support one side, form gas channel (5) between the opposite side (7) relative with described cooler of described support and the described stator (3), wherein, from stator center (R) in the position of the orthographic projection on the described opposite side (7) (A) to the length (L) of longitudinal end (Z) in the position of the orthographic projection on the described opposite side (7) of stator, the distance between the periphery of the bottom of described gas channel (4) and described stator (3) is consistent at least or local or all increase gradually.
2. motor as claimed in claim 1, wherein, described gas channel (5) is passing width on described stator center and the direction vertical with the direction of described orthographic projection at the width on the described orthographic projection direction of described stator center smaller or equal to described gas channel (5).
3. motor as claimed in claim 2, wherein, from stator center at the orthographic projection line on the described opposite side (7) at least on 1/4th stator periphery arc length of a side, the distance between the periphery of the bottom of described gas channel (4) and described stator (3) is consistent at least or local or all increase gradually.
4. as each described motor in the claim 1 to 3, wherein, the cross section of the bottom of described gas channel (4) is the shape of involute.
5. as each described motor in the claim 1 to 3, wherein, the bottom of described gas channel (4) are connected with the mild transition of the wall of described support.
6. motor as claimed in claim 5, wherein, cross section being combined to form by some sections line segments and some sections circular arcs of the bottom of described gas channel (4).
7. motor as claimed in claim 5, wherein, at least towards the wall of a side to described support, the cross section of the bottom of described gas channel (4) comprises one section line segment, one section circular arc and another section line segment from the position (A) of the orthographic projection of stator center on described opposite side (7).
8. motor as claimed in claim 5, wherein, at least towards the wall of a side to described support, the cross section of the bottom of described gas channel (4) comprises one section line segment and one section circular arc from the position (A) of the orthographic projection of stator center on described opposite side (7).
9. as each described motor in the claim 1 to 3, wherein, the periphery of described stator is provided with mounting rail (6), and described mounting rail (6) is placed in away from the position that becomes 90 degree on the stator periphery with the orthographic projection direction of described stator center on described opposite side (7).
10. motor as claimed in claim 6, wherein, the periphery of described stator is provided with mounting rail (6), and described mounting rail (6) is placed in away from the positions that become 90 degree on the stator periphery with the orthographic projection direction of described stator center on described opposite side (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320004902 CN203039501U (en) | 2013-01-06 | 2013-01-06 | Motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320004902 CN203039501U (en) | 2013-01-06 | 2013-01-06 | Motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203039501U true CN203039501U (en) | 2013-07-03 |
Family
ID=48691586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320004902 Expired - Fee Related CN203039501U (en) | 2013-01-06 | 2013-01-06 | Motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203039501U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266794A (en) * | 2014-10-20 | 2015-01-07 | 株洲高精传动技术有限公司 | Heat radiator of high-speed flywheel panel |
| CN110707854A (en) * | 2019-09-03 | 2020-01-17 | 西安中车永电捷力风能有限公司 | Engine base for wind driven generator |
-
2013
- 2013-01-06 CN CN 201320004902 patent/CN203039501U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266794A (en) * | 2014-10-20 | 2015-01-07 | 株洲高精传动技术有限公司 | Heat radiator of high-speed flywheel panel |
| CN110707854A (en) * | 2019-09-03 | 2020-01-17 | 西安中车永电捷力风能有限公司 | Engine base for wind driven generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20140106 |