CN207835215U - Motor stator for outer rotator and outer rotor blower fan - Google Patents
Motor stator for outer rotator and outer rotor blower fan Download PDFInfo
- Publication number
- CN207835215U CN207835215U CN201721892841.3U CN201721892841U CN207835215U CN 207835215 U CN207835215 U CN 207835215U CN 201721892841 U CN201721892841 U CN 201721892841U CN 207835215 U CN207835215 U CN 207835215U
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- stator core
- end cover
- rotor motor
- motor stator
- external rotor
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- 238000004806 packaging method and process Methods 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 22
- 238000009434 installation Methods 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 16
- 239000000463 material Substances 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 abstract 2
- 239000012212 insulator Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The utility model is related to technical field of motors, more particularly, to a kind of EC/DC motor stator for outer rotator and outer rotor blower fan.The bad technical problem of insulation performance to solve stator existing in the prior art.Reinforcement fixed mechanism including end cap, stator core and the plastic insulator of stator core and with its one；End cap is provided with lug boss towards the end face of stator core, and end cap is made of plastic material；Stator core is by Shooting Technique, and the reinforcement fixed mechanism with its one is formed by winding slot and upper and lower ends face plastic packaging, and in one end face；The endoporus of the non-plastic packaging of stator core, is arranged in lug boss；Reinforce fixed mechanism for positioning the relative position between end cap and stator core in circumferential direction.Technical solution provided by the utility model improves insulation performance, ensure that structural strength.
Description
Technical Field
The utility model belongs to the technical field of the motor technique and specifically relates to an external rotor electric machine stator and external rotor fan are related to.
Background
The outer rotor motor has a stator in the middle of the motor and a rotor outside. The outer rotor fan adopts an advanced structure and a reasonable pneumatic design of directly driving the impeller by the outer rotor motor, and has the characteristics of high efficiency, low noise, light weight, compact structure, convenient installation and maintenance and the like.
EC. The DC outer rotor motor is an outer rotor motor which adopts the power electronic technology and is controlled by electronic devices.
The existing EC and DC outer rotor stators comprise metal end covers, plastic insulation sleeves, stator cores, bearings and the like arranged in the metal end covers, wherein the metal end covers are internally provided with the plastic insulation sleeves, the stator cores are arranged on the metal end covers, and the structure defects that the plastic insulation sleeves in the metal end covers cannot realize secondary insulation due to space limitation and have poor insulation performance are overcome.
Therefore, the technical problem of poor insulation performance of the stator in the prior art is a technical problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an EC, DC external rotor electric machine stator and external rotor fan to alleviate the not good technical problem of insulating properties of the stator that exists among the prior art.
For alleviating the technical problem, the utility model provides a technical scheme lies in:
an EC and DC outer rotor motor stator comprises an end cover and a stator core;
the end surface of the end cover facing the stator core is provided with a convex part;
the stator core is formed by plastically packaging the winding slot and the upper and lower end faces through an injection molding process, and a reinforcing and fixing mechanism integrated with the stator core is formed on one end face of the stator core; the stator core is provided with an inner hole which is not in plastic package and penetrates through the boss part of the end cover;
the reinforcing and fixing mechanism is used for positioning the relative position between the end cover and the stator core in the circumferential direction; and the end surface of the convex part of the end cover is attached to the inner end surface of the reinforcing and fixing mechanism in the axial direction, and the end cover and the reinforcing and fixing mechanism can be fastened through an axial fixing screw.
Further, in the present invention,
strengthen fixed establishment including set up in first recess on the bellying and set up in first arch on the stator core inner wall, first recess with first protruding looks adaptation.
Further, in the present invention,
the first groove and the first protrusion are arranged along the axis direction.
Further, in the present invention,
the cross sections of the first groove and the first protrusion are both arc-shaped.
Further, in the present invention,
the first groove is provided with at least one, and the first bulge is provided with at least one
Further, in the present invention,
the end cap is made of insulating plastic.
Further, in the present invention,
the protruding portion is provided with a through hole along the axis direction, and the through hole is used for penetrating and installing the rotating shaft.
Further, in the present invention,
the protruding part is also provided with axial holes aligned with each other at the periphery of the through hole and used for mounting an axial fastening screw.
Further, in the present invention,
the outer rotor motor stator further comprises an upper cover, the upper cover is arranged on one side, deviating from the stator core, of the end cover, an installation space is formed between the upper cover and the end cover, and the space of the installation space is used for containing a motor control board.
An outer rotor fan comprises the outer rotor motor stator.
In combination with the above technical scheme, the utility model discloses the beneficial effect that can reach lies in:
because the utility model provides an external rotor motor stator, which comprises an end cover, a stator core and a strengthening and fixing mechanism; the end face, facing the stator core, of the end cover is provided with a protruding part, and the end cover is made of a plastic material; the stator core penetrates through the bulge part; the stator core is provided with a stator core, and the stator core is provided with an end cover and a stator core.
Because the end cover is made of plastic materials, the problem of secondary insulation is avoided, and the insulation performance is good, so that the existing plastic insulation sleeve can be omitted. In order to strengthen the mechanical strength of the end cover and avoid the problem that the end cover is deformed, a reinforcing and fixing mechanism is further arranged between the end cover and the stator core and used for positioning the end cover and the relative position between the stator cores in the circumferential direction, so that circumferential deviation of the end cover and the stator cores can be avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an exploded schematic view of an external rotor electric machine stator provided by an embodiment of the present invention:
fig. 2 is a schematic structural diagram of a stator core in an outer rotor motor stator provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an end cover in an outer rotor motor stator provided in an embodiment of the present invention.
Icon: 100-end cap; 200-a stator core; 110-a boss; 310-a first groove; 320-a first protrusion; 400-upper cover; 500-rear cover.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Embodiment 1 and embodiment 2 are described in detail below with reference to the accompanying drawings:
fig. 1 is an exploded schematic view of an external rotor electric machine stator provided by an embodiment of the present invention: fig. 2 is a schematic structural diagram of a stator core in an outer rotor motor stator provided in an embodiment of the present invention; fig. 3 is a schematic structural diagram of an end cover in an outer rotor motor stator provided in an embodiment of the present invention.
Example 1
The embodiment provides an external rotor motor stator, which comprises an end cover 100 and a stator core 200;
an end cover 100 provided with a boss 110 facing an end surface of the stator core 200; the end cap 100 is made of a plastic material;
the stator core 200 is formed by plastically packaging the winding slot and the upper and lower end faces through an injection molding process, and a reinforcing and fixing mechanism integrated with the stator core is formed on one end face of the stator core; the stator core is provided with an inner hole which is not in plastic package and penetrates through the end cover bulge part 110;
the reinforcing and fixing mechanism is used for positioning the relative position between the end cover and the stator core in the circumferential direction; and the end surface of the convex part of the end cover is attached to the inner end surface of the reinforcing and fixing mechanism in the axial direction, and the end cover and the reinforcing and fixing mechanism can be fastened through an axial fixing screw.
The beneficial effect analysis that the external rotor electric machine stator that this embodiment provided can reach is as follows:
the motor stator provided by the embodiment comprises an end cover 100, a stator core 200 and a reinforcing and fixing mechanism. An end cover 100 provided with a boss 110 facing an end surface of the stator core 200; and a stator core 200 inserted into the boss 110. Because the end cover 100 is made of plastic materials, the problem of secondary insulation is avoided, and the insulation performance is good, so that the existing plastic insulation sleeve can be omitted. In order to enhance the mechanical strength of the end cover 100 and avoid the problems of deformation of the end cover 100 and the like, a reinforcing and fixing mechanism is further provided between the end cover 100 and the stator core 200, and the reinforcing and fixing mechanism is used for positioning the relative position between the end cover 100 and the stator core 200 in the circumferential direction, so that circumferential deviation of the end cover 100 and the stator core 200 can be avoided.
In an alternative to this embodiment, it is preferable that,
the reinforcing and fixing mechanism includes a first groove 310 disposed on the protruding portion 110 and a first protrusion 320 disposed on the inner wall of the stator core 200, and the first groove 310 is matched with the first protrusion 320.
Further, in the present invention,
the first groove 310 and the first protrusion 320 are both disposed in the axial direction. The above-mentioned axis is understood to mean in particular the direction of the central axis of the stator of the electric machine. Specifically, the first groove 310 is disposed along a length direction of the boss 110 of the end cap 100. The first protrusion 320 is particularly disposed along a length direction of an inner wall of the stator core 200. In the assembled state, the first protrusion 320 at the inner wall of the stator core 200 is fitted into the first groove 310 at the protrusion 110 of the end cap 100 to be fitted to each other.
Further, in the present invention,
the number of the first grooves 310 and the first protrusions 320 may be freely set according to the actual use requirement, and for example, a pair of the first grooves 310 and the first protrusions 320 may be provided, or a pair of the first grooves 310 and the first protrusions 320 may be provided. When a plurality of pairs of the first grooves 310 and the first protrusions 320 are provided, the first grooves 310 and the first protrusions 320 are uniformly distributed around the axial direction.
In an alternative to this embodiment, it is preferable that,
the end cap 100 is made of a plastic material, and more preferably, the end cap 100 is made of plastic. A plastic material is a material used to electrically insulate a device, i.e. a material that is capable of blocking the passage of electrical current. Since the end cap 100 is made of a plastic material, there is no secondary insulation problem, and thus the existing plastic insulating sleeve can be omitted.
In an alternative to this embodiment, it is preferable that,
the bulge is provided with a through hole along the axis direction, and the through hole is used for penetrating and installing the rotating shaft. The rotating shaft is a rotating shaft of the motor and penetrates through the through hole of the protruding portion.
In an alternative to this embodiment, it is preferable that,
the outer rotor motor stator further includes an upper cover 400, and the upper cover 400 is covered on one side of the end cover 100 facing away from the stator core 200. An installation space is formed between the upper cover 400 and the end cover 100. The mounting space described above can be used for placing a circuit board.
In an alternative to this embodiment, it is preferable that,
the outer rotor motor stator further includes a rear cover 500, and the rear cover 500 covers a side of the upper cover 400 facing away from the end cover 100.
Example 2
The present embodiment provides an outer rotor fan including the outer rotor motor stator described in embodiment 1.
Wherein,
the outer rotor motor stator comprises an end cover 100, a stator core 200 and a reinforcing and fixing mechanism;
an end cover 100 provided with a boss 110 facing an end surface of the stator core 200; the end cap 100 is made of a plastic material;
a stator core 200 inserted into the boss 110;
a reinforcing and fixing mechanism for positioning the relative position between the end cover 100 and the stator core 200 in the circumferential direction is also provided between the end cover 100 and the stator core 200.
The beneficial effect analysis that the external rotor fan that this embodiment provided can reach is as follows:
the outer rotor fan provided by the embodiment includes an end cover 100, a stator core 200, and a reinforcing and fixing mechanism. An end cover 100 provided with a boss 110 facing an end surface of the stator core 200; and a stator core 200 inserted into the boss 110. Since the end cap 100 is made of a plastic material, there is no secondary insulation problem, and thus the existing plastic insulating sleeve can be omitted. In order to enhance the mechanical strength of the end cover 100 and avoid the problems of deformation of the end cover 100 and the like, a reinforcing and fixing mechanism is further provided between the end cover 100 and the stator core 200, and the reinforcing and fixing mechanism is used for positioning the relative position between the end cover 100 and the stator core 200 in the circumferential direction, so that circumferential deviation of the end cover 100 and the stator core 200 can be avoided.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. The EC and DC outer rotor motor stator is characterized by comprising an end cover and a stator core;
the end surface of the end cover facing the stator core is provided with a convex part;
the stator core is formed by plastically packaging the winding slot and the upper and lower end faces through an injection molding process, and a reinforcing and fixing mechanism integrated with the stator core is formed on one end face of the stator core; the stator core is provided with an inner hole which is not in plastic package and penetrates through the boss part of the end cover;
the reinforcing and fixing mechanism is used for positioning the relative position between the end cover and the stator core in the circumferential direction; and the end surface of the convex part of the end cover is attached to the inner end surface of the reinforcing and fixing mechanism in the axial direction, and the end cover and the reinforcing and fixing mechanism can be fastened through an axial fixing screw.
2. The external rotor motor stator according to claim 1,
strengthen fixed establishment including set up in first recess on the bellying and set up in first arch on the stator core inner wall, first recess with first protruding looks adaptation.
3. The external rotor motor stator according to claim 2,
the first groove and the first protrusion are arranged along the axis direction.
4. The external rotor motor stator according to claim 2,
the cross sections of the first groove and the first protrusion are both arc-shaped.
5. The external rotor motor stator as claimed in claim 3,
the first groove is provided with at least one, and the first bulge is provided with at least one.
6. The external rotor motor stator according to claim 1,
the end cap is made of insulating plastic.
7. The external rotor motor stator according to claim 1,
the protruding portion is provided with a through hole along the axis direction, and the through hole is used for penetrating and installing the rotating shaft.
8. The external rotor motor stator according to claim 7,
the protruding part is also provided with axial holes aligned with each other at the periphery of the through hole and used for mounting an axial fastening screw.
9. The external rotor motor stator according to claim 1,
the outer rotor motor stator further comprises an upper cover, the upper cover is arranged on one side, deviating from the stator core, of the end cover, an installation space is formed between the upper cover and the end cover, and the space of the installation space is used for containing a motor control board.
10. An external rotor fan, comprising the external rotor motor stator according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721892841.3U CN207835215U (en) | 2017-12-29 | 2017-12-29 | Motor stator for outer rotator and outer rotor blower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721892841.3U CN207835215U (en) | 2017-12-29 | 2017-12-29 | Motor stator for outer rotator and outer rotor blower fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207835215U true CN207835215U (en) | 2018-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721892841.3U Active CN207835215U (en) | 2017-12-29 | 2017-12-29 | Motor stator for outer rotator and outer rotor blower fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207835215U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947426A (en) * | 2017-12-29 | 2018-04-20 | 杭州微光电子股份有限公司 | Motor stator for outer rotator and outer rotor blower fan |
-
2017
- 2017-12-29 CN CN201721892841.3U patent/CN207835215U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947426A (en) * | 2017-12-29 | 2018-04-20 | 杭州微光电子股份有限公司 | Motor stator for outer rotator and outer rotor blower fan |
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