CN2867700Y - Slotless electric machine stator - Google Patents
Slotless electric machine stator Download PDFInfo
- Publication number
- CN2867700Y CN2867700Y CN 200520046222 CN200520046222U CN2867700Y CN 2867700 Y CN2867700 Y CN 2867700Y CN 200520046222 CN200520046222 CN 200520046222 CN 200520046222 U CN200520046222 U CN 200520046222U CN 2867700 Y CN2867700 Y CN 2867700Y
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- CN
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- Prior art keywords
- stator
- winding
- motor
- groove
- utility
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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.)
- Expired - Fee Related
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- Iron Core Of Rotating Electric Machines (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The utility model relates to a groove-free motor stator for solving the problems of conventional stator, whose windings are provided on the inner side, such as low production efficiency, poor safety, poor heat dissipation, and high power consumption. The inner wall of the stator is an entire column, and multiple grooves for arranging windings are provided on the external portion of the stator. The motor having this stator has high efficiency, low noise, high overload capacity, and stable operation, and brushless motor or variable-frequency motor having the stator has high control sensitivity, wide rotation speed range, light weight, and small size. The utility model has advantages of simple production process, high yield, and wide application.
Description
Technical field:
The utility model relates to technical field of motors, refers in particular to a kind of motor stator winding structure.
Background technology:
At present, motor stator winding is to be embedded in the interior round straight trough or skewed slot of stator lasmination by certain phase place order; There is the problem of following several aspects in the existing stator winding structure of this kind:
One, production efficiency is restricted
In the production operation process, because circle is less in the stator; Especially the stator of low-power machine; And if stator lasmination is longer, then operating personnel's hand cannot put in operation at all; Therefore, have influence on efficiency of operation.
Two, there is potential faults
Because stator winding uses traditional winding in interior round straight trough or skewed slot, because some motor copper factor is than higher, can't use filler rod that winding is compressed, cause motor winding copper cash behind the running certain hour that the possibility of exposing stator slot is arranged, the rotor of high speed rotating can cut off copper cash, danger such as motor can occur stopping or phase-deficient operation, motor housing be charged.
Three, loss height
Because circle straight trough or skewed slot are interior in order to put into winding in the conventional motors stator, groove must have certain breach, this breach causes the loss of magnetic circuit big, making must increase the volume of stator, increase winding, shell etc. in order to obtain certain power, cause that efficient is low, expense electricity, waste of material, be unfavorable for energy savings.For example, under same operating voltage, the coil of the same number of turns, diameter, the centre has magnetic force unshakable in one's determination big, and electric current is little.
Four, radiating effect is poor
Because the conventional motors winding is in the inside, the electric current acting by the copper cash winding during work, heating in winding, heat must just can be transmitted to the motor housing heat radiation by the stator because of the magnetic circuit heating equally; Thereby have influence on the effect of heat radiation.
Five, noise height, air drag are big
When rotor runs up, the air that rotor drives forms the air-flow of following rotor rotation, the velocity of rotation of this air-flow is directly proportional with rotor rotation speed, owing on the conventional motors stator inner round wall straight trough or skewed slot are arranged, making the interior circle of stator no longer is a complete interior circle, and the air-flow of high speed rotating can ceaselessly clash into straight trough or skewed slot, thereby cause noise, because air-flow is not have poking one's nose everywhere of rule, it can't hold up rotor and give the power of a balance of rotor, on the contrary rotor is had inhibition.
The utility model content:
The technical problem that the utility model solves is to provide a kind of and can overcomes foregoing problems, production technology is more simple, high efficiency, noise is low, overload capacity is strong, operate steadily, in light weight, volume is little, can be widely applied to a kind of stator winding structure on all motors and the motor production technology.
Technical problem of the present utility model is achieved by the following technical solution: mainly comprise stator and winding; Stator inner wall is a complete tubular, and its outside is formed with some grooves, the built-in winding of groove.
Less and the groove body of the opening portion of groove part is bigger.
Stator is combined by some stator punchings.
Between the groove of stator and winding, be provided with the insulating paper of insulating effect.
Circle is a complete circle in the utility model motor stator, and groove is offered in its outside, is used for inlaying of motor copper cash winding; During production, the copper cash winding can be embedded in the groove on the stator cylindrical wall easily.And temperature is directly transferred to shell when machine operation, and favourable heat radiation because copper cash is in peripheral groove, and is clipped between the outer casing inner wall, again because of circle in the stator is complete, so do not worry that the copper cash winding can be loose, is understood and be cut off by rotor.Because circle is a complete closed space very close to each other in the stator, its magnetic circuit efficiency can be the highest, and loss can reduce, air-flow with the rotor rotation is sandwiched between rotor cylindrical and the stator inner round wall, pneumatic noise can reduce, and air drag can reduce, and electric efficiency can improve; Make that motor has the efficient height, noise is low, overload capacity is strong, operate steadily; Be used in brushless electric machine and variable-frequency motor and have that control is sensitive, the rotating speed range of choice is wide, in light weight, volume is little, makes production technology more simple, the rate of finished products advantages of higher.Can extensively the utility model be applied on all motors and the motor production technology.
Description of drawings:
Below in conjunction with drawings and Examples the utility model is further specified:
Accompanying drawing is the floor map of the utility model water jacket stator.
Embodiment:
See accompanying drawing, the utility model motor stator winding mainly includes stator 1 and winding; Stator 1 is combined by the welding of some stator punchings, and the inwall of stator 1 is a complete tubular, and its outside is formed with some grooves 11, and the opening portion of groove 11 111 is less and groove body part 112 is bigger; So that the winding embedding is fixing; This groove 11 can be straight trough or skewed slot.After pad is established insulating paper in groove 11, as requested winding is promptly finished assembling from the groove body part 112 that the opening portion 111 of groove 11 is embedded into stator 1 again.
Claims (5)
1, a kind of slotless electric machines stator mainly comprises: stator (1) and winding; It is characterized in that: stator (1) inwall is a complete tubular, and its outside is formed with some grooves (11), the built-in winding of groove (11).
2, slotless electric machines stator according to claim 1 is characterized in that: the less and groove body of the opening portion (111) of groove (11) part (112) is bigger.
3, slotless electric machines stator according to claim 1 and 2 is characterized in that: stator (1) is combined by some stator punchings.
4, slotless electric machines stator according to claim 1 and 2 is characterized in that: the insulating paper that is provided with insulating effect between the groove (11) of stator (1) and winding.
5, slotless electric machines stator according to claim 3 is characterized in that: the insulating paper that is provided with insulating effect between the groove (11) of stator (1) and winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520046222 CN2867700Y (en) | 2005-11-03 | 2005-11-03 | Slotless electric machine stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520046222 CN2867700Y (en) | 2005-11-03 | 2005-11-03 | Slotless electric machine stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2867700Y true CN2867700Y (en) | 2007-02-07 |
Family
ID=37703405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520046222 Expired - Fee Related CN2867700Y (en) | 2005-11-03 | 2005-11-03 | Slotless electric machine stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2867700Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102449884A (en) * | 2010-06-19 | 2012-05-09 | 金俞廷 | Brushless DC motor with slotless stator |
| CN103051073A (en) * | 2013-01-06 | 2013-04-17 | 宁波韵升股份有限公司 | Motor stator and manufacturing method thereof |
-
2005
- 2005-11-03 CN CN 200520046222 patent/CN2867700Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102449884A (en) * | 2010-06-19 | 2012-05-09 | 金俞廷 | Brushless DC motor with slotless stator |
| CN103051073A (en) * | 2013-01-06 | 2013-04-17 | 宁波韵升股份有限公司 | Motor stator and manufacturing method thereof |
| CN103051073B (en) * | 2013-01-06 | 2016-06-08 | 宁波韵升股份有限公司 | Motor stator and manufacture method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |