CN111835116A - Outer rotor motor stator and motor - Google Patents
Outer rotor motor stator and motor Download PDFInfo
- Publication number
- CN111835116A CN111835116A CN202010632061.5A CN202010632061A CN111835116A CN 111835116 A CN111835116 A CN 111835116A CN 202010632061 A CN202010632061 A CN 202010632061A CN 111835116 A CN111835116 A CN 111835116A
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- China
- Prior art keywords
- stator
- insulation
- wiring
- external rotor
- rotor motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
- H02K2203/12—Machines characterised by the bobbins for supporting the windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The application provides an external rotor electric machine stator and motor, external rotor electric machine stator includes: a stator core; a stator winding wound around the stator core; the stator insulation framework is coated on the periphery of the stator core and used for realizing insulation between the stator core and the stator winding; and the wiring insulation framework is fixed on the stator insulation framework and is provided with a wiring part for winding tapping and power line wiring. The outer rotor motor stator of the application abandons the existing mode of routing the line in the stator inner side, optimizes the routing mode of power lines and winding taps, and effectively solves the problems of disordered routing and poor insulation and the like.
Description
Technical Field
The invention relates to the technical field of driving devices, in particular to an outer rotor motor stator and a motor.
Background
Along with the energy efficiency upgrading of the household appliance industry, the outer rotor motor is more and more popular in the market. The structure of the external rotor motor is different from that of the traditional motor, the stator of the external rotor motor is arranged in the middle of the motor, and the rotor of the external rotor motor is arranged on the outer side. In the prior art, when wiring, most of external rotor motors place a power line connector through an insulating layer channel arranged on the inner side of a stator insulating framework, and a power line is fixed in a clamping mode through a clamping column. But the wiring mode of the winding is disordered, the insulation effect of the winding is not considered, and the quality problems of short circuit and the like of the winding are easily caused.
Disclosure of Invention
To solve the above problems in the prior art, the present application provides an external rotor motor stator and a motor, which are used for solving the above technical problems.
In a first aspect, the present application provides an external rotor motor stator, comprising: a stator core; a stator winding wound around the stator core; the stator insulation framework is coated on the periphery of the stator core and used for realizing insulation between the stator core and the stator winding; and the wiring insulation framework is fixed on the stator insulation framework and is provided with a wiring part for winding tapping and power line wiring. The outer rotor motor stator of the application abandons the existing mode of routing the line in the stator inner side, optimizes the routing mode of power lines and winding taps, and effectively solves the problems of disordered routing and poor insulation and the like.
In one embodiment according to the first aspect, the routing portion includes a plurality of ramps for routing the power line, and the lengths of the plurality of ramps are not all equal to avoid concentration of the power line at an outlet of the ramps.
In one embodiment according to the first aspect, a first clip is provided above the ramp to limit movement of the power line in an axial direction of the stator insulating skeleton, thereby preventing the power line from being lifted.
In one embodiment according to the first aspect, the routing portion includes an open slot, and the open slot is disposed at an edge of the wiring insulation skeleton and is used for guiding a lead of the winding tap and the protector to enter the routing portion. The arrangement of the open slots enables, on the one hand, the winding taps to enter the routing portion for connection with the power supply line and, on the other hand, the leads of the protector to enter the routing portion for connection with the power supply line and the winding taps. The problem of insulation of a winding tap is solved, and the problem of disordered arrangement of power supply lead wires is solved.
In one embodiment according to the first aspect, the wiring insulation skeleton further has a wire outlet portion configured as an upper sheath and a lower sheath that are fitted to each other, the opposite side surfaces of the upper sheath and the lower sheath are each provided with a concave-convex portion, the concave-convex portions of the upper sheath and the concave-convex portions of the lower sheath are provided at intervals in a radial direction of the stator insulation skeleton, and concave portions of the concave-convex portions of the upper sheath and concave portions of the concave-convex portions of the lower sheath form a concave-convex channel for passing a power supply wire. The concave-convex channel can enable the power line to correspondingly form a concave-convex line outgoing mode, and the anti-pulling capacity of the power line is improved.
In one embodiment according to the first aspect, one end of the upper sheath is provided with one of a buckle or a buckle hole, and the other end of the lower sheath, which is matched with the upper sheath, is provided with the other of the buckle or the buckle hole, and the buckle can be clamped in the buckle hole.
In one embodiment according to the first aspect, the wire connection insulating frame further has a groove for placing a wire connector, and a notch is formed at one end of the groove close to the ramp, and the notch communicates the groove with the ramp, wherein the width of the notch is smaller than that of the groove, so as to prevent the wire connector from being removed from the groove.
In one embodiment according to the first aspect, the wiring insulation skeleton further includes a protector placing region for placing a protector, and the protector placing region is configured to have a hollow structure so as to limit movement of the protector in a radial direction of the stator insulation skeleton.
In one embodiment according to the first aspect, a second locking column is provided above the protector placing region, and is used for limiting the protector from moving in the axial direction of the stator insulation framework.
In an embodiment according to the first aspect, an end surface of the stator insulating framework is provided with a convex column and a support frame, the convex column is arranged on the wiring insulating framework in a penetrating manner, and the support frame is used for supporting the wiring insulating framework.
In one embodiment according to the first aspect, the top of the support frame is higher than the top of the stator winding, and the stator winding end portion can be prevented from being crushed.
In one embodiment according to the first aspect, the wiring insulating framework has a post hole corresponding to the position of the convex post, and when the wiring insulating framework is placed on the stator insulating framework, the convex post can be clamped in the post hole to fixedly connect the wiring insulating framework and the stator insulating framework.
In a second aspect, the present application provides an electric machine comprising an outer rotor electric machine stator according to the first aspect.
Compared with the prior art, the method has the following advantages:
1) the outer rotor motor stator of the application abandons the existing mode of routing the line in the stator inner side, optimizes the routing mode of power lines and winding taps, and effectively solves the problems of disordered routing and poor insulation and the like.
2) The concave-convex outgoing part is adopted, so that the pulling resistance of the power line is improved.
3) The lengths of the plurality of ramps for routing the power supply wires are not all equal, so that the situation that the power supply wires are concentrated at the outlets of the ramps to cause disordered routing is avoided. Simultaneously, the power line can be limited by arranging the clamping column, so that the power line is prevented from tilting.
The features mentioned above can be combined in various suitable ways or replaced by equivalent features as long as the object of the invention is achieved.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:
fig. 1 shows a schematic structural view of an external rotor electric machine stator according to the present application.
Fig. 2 shows a schematic structural view of the stator insulating skeleton in fig. 1.
Fig. 3 shows the structure of fig. 1 with the insulating frame of the wiring removed.
Fig. 4 shows a schematic structural diagram of the wiring insulating skeleton in fig. 1.
Fig. 5 shows a schematic structural view of the wiring insulation frame (with the upper sheath removed) in fig. 1.
Fig. 6 shows a schematic view of the construction of the lower sheath portion of fig. 5.
Fig. 7 shows a schematic view of the structure of the upper sheath shown in fig. 1.
Figure 8 shows a schematic diagram of routing a power cord between an upper sheath and a lower sheath according to the present application.
Figure 9 shows a schematic view of a structure of a connector lug placement area according to the present application.
In the drawings, like parts are provided with like reference numerals. The drawings are not to scale.
Detailed Description
The invention will be further explained with reference to the drawings.
Fig. 1 shows an external rotor motor stator according to the present application, which includes a stator core 1, a stator winding 2, a stator insulation frame 3, and a wiring insulation frame 4.
As shown in fig. 1-3, a stator winding 2 is wound on a stator core 1, and a stator insulation framework 3 is coated on the periphery of the stator core 1 and used for realizing insulation between the stator core 1 and the stator winding 2; the wiring insulation framework 3 is fixed on the stator insulation framework 3, and the wiring insulation framework 4 is provided with a routing part for routing the winding tap 100 and the power line 200.
The outer rotor motor stator of the application abandons the existing mode of routing the line in the stator inner side, optimizes the routing mode of power lines and winding taps, and effectively solves the problems of disordered routing and poor insulation and the like.
Preferably, as shown in fig. 4 and 5, the routing portion includes a plurality of ramps 401 for routing the power line 200, and the lengths of the plurality of ramps 401 are not all equal to avoid concentration of the power line 200 at the exit of the ramps 401. More preferably, a first clip 402 is provided above the ramp 401 to limit movement of the power cord 200 in the axial direction of the stator insulating frame 3, thereby preventing the power cord 200 from being tilted.
Preferably, the routing portion includes an open slot 403, and the open slot 403 is disposed at an edge of the wiring insulation skeleton 4 for guiding the lead wires of the winding tap 100 and the protector 300 into the routing portion. The provision of the open slot 403 enables, on the one hand, the winding tap 100 to enter the routing portion for connection with the power supply line 200 and, on the other hand, the lead wires of the protector 300 to enter the routing portion for connection with the power supply line 200 and the winding tap 100. Not only the problem of insulation of the winding tap 100 is solved, but also the problem of disordered arrangement of the outgoing lines of the power line 200 is solved.
In the embodiment shown in fig. 5, the open slots 403 include a first open slot 4031 for guiding the winding tap 100 and a second open slot 4032 for guiding the leads of the protector 300.
Preferably, the wiring insulation skeleton 4 further has a wire outlet portion 404, the wire outlet portion 404 is configured as an upper sheath 405 and a lower sheath 406 which are fitted to each other, the opposite side surfaces of the upper sheath 405 and the lower sheath 406 are each provided with a concavo-convex portion, and the concavo-convex portions of the upper sheath 405 and the concavo-convex portions of the lower sheath 406 are provided at intervals in the radial direction of the stator insulation skeleton 4. In the embodiment shown in fig. 7, the upper sheath 405 has two concave- convex portions 4051,4052 arranged in parallel, and as shown in fig. 6, the lower sheath 406 has one concave-convex portion 4061, and when the upper sheath 405 and the lower sheath 406 are fitted to each other, the concave-convex portion 4061 of the lower sheath 406 is just accommodated between the two concave- convex portions 4051,4052 of the upper sheath 405. Moreover, when the upper sheath 405 and the lower sheath 406 are installed, the concave part of the concave- convex part 4051,4052 of the upper sheath 405 and the concave part of the concave-convex part 4061 of the lower sheath 406 correspond to each other in position to form a channel for passing through the power cord 200, and when the upper sheath 405 and the lower sheath 406 are installed, the bottom wall of the concave part of the concave- convex part 4051,4052 is lower than the bottom wall of the concave part of the concave-convex part 4061, so that the formed channel for passing through the power cord 200 is a concave-convex channel, and the concave-convex channel can enable the power cord 200 to correspondingly form a concave-convex outlet mode, as shown in fig. 8, and the power cord pulling resistance is improved.
Preferably, as shown in fig. 7, one end of the upper sheath 405 is provided with a snap hole 4053, and the end of the lower sheath 406, which is matched with the upper sheath 405, is provided with a snap 4062, and the snap 4062 can be snapped in the snap hole 4053. It will be appreciated that the positions of the snap holes 4053 and the snaps 4062 can also be reversed, i.e., the snap holes 4053 are provided on the lower sheath 406 and the snaps 4062 are provided on the upper sheath 405. More preferably, the other end of the upper sheath 405 is provided with a positioning hole 4054, and the other end of the lower sheath 406 is provided with a positioning post 4063, so that the positioning post 4063 can just penetrate through the positioning hole 4054 when the upper sheath 405 is mounted on the lower sheath 406.
Preferably, as shown in fig. 5 and 9, the wiring insulation framework 4 further has a terminal placing area 407, and the terminal placing area 407 is used for placing a terminal. The connector lug refers to the position where a power line and a winding are welded, the power line and the winding are connected through soldering tin, the joint is called a welding opening, and welding opening insulation is an important part of electrical safety protection of the motor. This application is through setting up recess 4071, offers notch 4072 at the one end of recess 4071 near the ramp 401, and notch 4072 is linked together recess 4071 and ramp 401, and wherein, the width of notch 4072 is less than the width of recess 4071 to prevent that the connector lug from shifting out from recess 4071, in order to realize the insulation between connector lug and other electrified/electrically conductive parts.
Preferably, as shown in fig. 5, the wiring insulation framework 4 further includes a protector placing area 408 for placing the protector 300, the protector placing area 408 is configured to be a hollow structure, and the protector 300 can be just accommodated in the hollow structure, so as to limit the movement of the protector 300 in the radial direction along the stator insulation framework 3. Preferably, a second latching pillar 4081 is provided above the protector placing region 408 for restricting the movement of the protector 300 in the axial direction of the stator insulating bobbin 3.
As shown in fig. 2, a convex column 301 and a supporting frame 302 are disposed on an end surface of the stator insulating frame 3, the convex column 301 is disposed on the wiring insulating frame 4 in a penetrating manner, and the supporting frame 302 is used for supporting the wiring insulating frame 4. Preferably, the top of the supporting frame 302 is higher than the top of the stator winding 2, so that the end of the stator winding 2 can be prevented from being crushed.
The wiring insulating framework 4 is provided with a column hole 409 (see fig. 5) corresponding to the position of the convex column 301, and when the wiring insulating framework 4 is placed on the stator insulating framework 3, the convex column 301 can be clamped in the column hole 409 so as to fixedly connect the wiring insulating framework 4 with the stator insulating framework 3.
Referring to fig. 6 and 7, the column hole 409 includes a first column hole 4091 disposed on the lower sheath 406 and a second column hole 4092 disposed on the upper sheath 405, and when the upper sheath 405 is mounted on the lower sheath 406, the first column hole 4091 corresponds to the second column hole 4092, so that the convex column 301 on the stator insulating framework 3 can penetrate through the first column hole 4091 and the second column hole 4092, and the stator insulating framework 3 and the wiring insulating framework 4 are fixed.
The outer rotor electrode stator according to the present application can be applied to a motor, thereby providing the motor with the above-described advantages.
In summary, the present application has the following advantages: 1) the outer rotor motor stator of the application abandons the existing mode of routing the line in the stator inner side, optimizes the routing mode of power lines and winding taps, and effectively solves the problems of disordered routing and poor insulation and the like. 2) The concave-convex outgoing part is adopted, so that the pulling resistance of the power line is improved. 3) The lengths of the plurality of ramps for routing the power supply wires are not all equal, so that the situation that the power supply wires are concentrated at the outlets of the ramps to cause disordered routing is avoided. Simultaneously, the power line can be limited by arranging the clamping column, so that the power line is prevented from tilting.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.
Claims (13)
1. An external rotor motor stator, comprising:
a stator core;
a stator winding wound around the stator core;
the stator insulation framework is coated on the periphery of the stator core and used for realizing insulation between the stator core and the stator winding;
and the wiring insulation framework is fixed on the stator insulation framework and is provided with a wiring part for winding tapping and power line wiring.
2. The external rotor electric machine stator according to claim 1, wherein the routing portion includes a plurality of ramps for routing the power lines, and the lengths of the plurality of ramps are not all equal to avoid concentration of the power lines at outlets of the ramps.
3. The external rotor motor stator according to claim 2, wherein a first clip is provided above the ramp for limiting movement of the power line in an axial direction of the stator insulating frame.
4. The outer rotor motor stator of claim 1, wherein the routing portion includes an open slot provided at an edge of the wiring insulation skeleton for guiding a winding tap and a lead wire of a protector into the routing portion.
5. The external rotor motor stator according to any one of claims 1-4, wherein the wiring insulation skeleton further has a wire outlet portion configured as an upper sheath and a lower sheath fitted to each other, and both opposite side surfaces of the upper sheath and the lower sheath are provided with concavo-convex portions, the concavo-convex portions of the upper sheath and the concavo-convex portions of the lower sheath being provided at intervals in a radial direction of the stator insulation skeleton,
the concave part of the concave-convex part of the upper sheath and the concave part of the concave-convex part of the lower sheath form a concave-convex channel for passing a power line.
6. The external rotor motor stator as claimed in claim 5, wherein one end of the upper sheath is provided with one of a snap or a snap hole, and the other end of the lower sheath, which is engaged with the upper sheath, is provided with the other of the snap or the snap hole, and the snap can be snapped in the snap hole.
7. The external rotor motor stator according to claim 2 or 3, wherein the wiring insulation frame further has a groove for placing a wiring terminal, one end of the groove near the ramp is provided with a notch, and the notch communicates the groove with the ramp,
wherein the width of the notch is less than the width of the groove to prevent the lug from moving out of the groove.
8. The external rotor motor stator according to any one of claims 1 to 4, wherein the wiring insulation bobbin further includes a protector placing region for placing a protector, the protector placing region being configured as a hollow structure to restrict movement of the protector in a radial direction of the stator insulation bobbin.
9. The external rotor motor stator according to claim 8, wherein a second locking post is provided above the protector placing region for limiting movement of the protector in an axial direction of the stator insulation frame.
10. The external rotor motor stator as claimed in any one of claims 1-4, wherein the end face of the stator insulation frame is provided with a boss for passing through the wiring insulation frame and a support frame for supporting the wiring insulation frame.
11. The external rotor motor stator of claim 10, wherein the top of the support frame is higher than the top of the stator windings.
12. The external rotor motor stator as claimed in claim 10, wherein the wiring insulation bobbin has a post hole corresponding to the position of the post, and the post can be engaged in the post hole when the wiring insulation bobbin is placed on the stator insulation bobbin, so as to fixedly connect the wiring insulation bobbin and the stator insulation bobbin.
13. An electric machine, characterized in that it comprises an external rotor electric machine stator according to any of claims 1-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010632061.5A CN111835116A (en) | 2020-07-02 | 2020-07-02 | Outer rotor motor stator and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010632061.5A CN111835116A (en) | 2020-07-02 | 2020-07-02 | Outer rotor motor stator and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111835116A true CN111835116A (en) | 2020-10-27 |
Family
ID=72900142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010632061.5A Pending CN111835116A (en) | 2020-07-02 | 2020-07-02 | Outer rotor motor stator and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111835116A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112821629A (en) * | 2021-01-08 | 2021-05-18 | 珠海格力电器股份有限公司 | Motor and wire fixing device |
| CN113809891A (en) * | 2021-09-28 | 2021-12-17 | 珠海格力电器股份有限公司 | Direct current external rotor motor lead wire positioner, motor and fan |
| CN114498998A (en) * | 2022-01-04 | 2022-05-13 | 广东美的智能科技有限公司 | Wiring structure, motor stator and servo motor |
-
2020
- 2020-07-02 CN CN202010632061.5A patent/CN111835116A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112821629A (en) * | 2021-01-08 | 2021-05-18 | 珠海格力电器股份有限公司 | Motor and wire fixing device |
| CN113809891A (en) * | 2021-09-28 | 2021-12-17 | 珠海格力电器股份有限公司 | Direct current external rotor motor lead wire positioner, motor and fan |
| CN114498998A (en) * | 2022-01-04 | 2022-05-13 | 广东美的智能科技有限公司 | Wiring structure, motor stator and servo motor |
| WO2023130591A1 (en) * | 2022-01-04 | 2023-07-13 | 广东美的智能科技有限公司 | Wiring structure |
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