CN111799915A - Motor stator structure and motor - Google Patents
Motor stator structure and motor Download PDFInfo
- Publication number
- CN111799915A CN111799915A CN202010589196.8A CN202010589196A CN111799915A CN 111799915 A CN111799915 A CN 111799915A CN 202010589196 A CN202010589196 A CN 202010589196A CN 111799915 A CN111799915 A CN 111799915A
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- China
- Prior art keywords
- protection device
- winding
- winding coil
- water
- electric motor
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Classifications
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/30—Windings characterised by the insulating material
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/42—Means for preventing or reducing eddy-current losses in the winding heads, e.g. by shielding
Abstract
The invention discloses a motor stator structure and a motor, which comprise a water-cooling shell, a stator core and a winding coil, wherein the stator core is arranged in the water-cooling shell, the winding coil is arranged in the stator core, one end of the winding coil is provided with a first winding protection device, the bottom of the first winding protection device is provided with a resin injection molding material for connecting the water-cooling shell and the winding coil, the first winding protection device is provided with a power line leading-out device, a power lead-out wire connected with the winding coil is arranged in the power line leading-out device, the other end of the winding coil is provided with a second winding protection device, and the resin injection molding material is arranged between the second winding protection device and the winding coil. The complex assembly process is reduced, the direct hot sleeve forming is realized, the subsequent injection molding process is convenient to carry out, and the processing cost is reduced; the structure is simple and reliable, the assembly and manufacture difficulty is reduced, and the manufacturability of the whole structure of the motor is improved.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a motor stator structure and a motor.
Background
In the prior art, in order to ensure the heat dissipation and insulation performance of a stator of a high-speed motor, a resin injection molding process is usually adopted at the end part of a winding coil, and in view of structural manufacturability, the structural strength of a resin material after curing is low, and the reliability can not be ensured in the long-term operation process of the motor; meanwhile, in the injection molding process, the position of the lead-out power line cannot be effectively fixed, the lead-out power line is easy to deflect in the curing process, the molding effect of the arrangement of the lead-out wires after injection molding is affected, and the requirements of the apparent appearance and the installation size of the motor stator are further affected.
Patent No. CN107979201B discloses a motor winding encapsulation structure, wherein an inner encapsulation tool and an outer encapsulation tool are designed at the end part of a motor, but the structure adopts bidirectional encapsulation, the inner part of the winding cannot be sealed, leakage is easy to occur during injection molding, the injection molding needs to be disassembled, the process is complex, and the structural performance and reliability of the encapsulation adhesive cannot be ensured after the disassembly; patent No. CN105099039A discloses a structure that motor power supply lead-out wire position design wire presss from both sides, but this structure technology is complicated, and the processing cost is higher, and difficult installation, and beneficial effect is not obvious.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the motor stator structure and the motor, which reduce the complex assembly process, are directly subjected to hot sleeve forming, are convenient for the subsequent injection molding process and reduce the processing cost; the structure is simple and reliable, the assembly and manufacture difficulty is reduced, and the manufacturability of the whole structure of the motor is improved.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a motor stator structure, includes water-cooling casing, stator core and winding coil, be equipped with stator core in the water-cooling casing, be equipped with the winding coil in the stator core, the one end of winding coil is equipped with first winding protection device, and first winding protection device's bottom is equipped with the resin injection molding material that is used for connecting water-cooling casing and winding coil, is equipped with power cord guiding device on the first winding protection device, be equipped with the power lead-out wire of being connected with the winding coil in the power cord guiding device, the other end of winding coil is equipped with second winding protection device, be equipped with the resin injection molding material between second winding protection device and the winding coil.
Preferably, the first winding protection device comprises a cover plate and a limiting ring, the limiting ring is connected with the end of the stator core, the cover plate is of an annular structure and is connected with the end of the limiting ring, and the outer edge of the cover plate is connected with the water-cooling shell.
Preferably, the cover plate is provided with a yielding hole, the power line leading-out device is fixed in the yielding hole, and the middle part of the power line leading-out device is provided with a line hole.
Preferably, the upper end edge of the hole of stepping down is equipped with the recess, the edge of power cord guiding device be equipped with recess complex boss.
Preferably, the cover plate is provided with a resin injection molding hole.
Preferably, the edge of apron is equipped with the mounting hole, be equipped with on the inner wall of water-cooling casing with mounting hole complex installation screens, be equipped with the spacing boss of fixed apron on the inner wall of water-cooling casing.
Preferably, a first insulating isolation sleeve is arranged on the inner wall of the first winding protection device.
Preferably, the second winding protection device is an annular cylindrical structure with one open end.
Preferably, a second insulating isolation sleeve is arranged on the inner wall of the second winding protection device.
An electric motor comprises the motor stator structure.
Compared with the prior art, the invention has the beneficial effects that:
1. the first winding protection device is axially positioned through the limiting boss of the water-cooling shell, and is circumferentially positioned through the mounting clamping position. The water-cooling shell and the stator with the winding protection device are designed to be in interference fit with each other in a hot jacket forming mode, meanwhile, a clamping position in clearance fit is designed between the water-cooling shell and the first winding protection device, and after the water-cooling shell and the stator core are cooled and fixed, the first winding protection device can be positioned and fixed; the structure is simple and reliable, the assembly and manufacture difficulty is reduced, and the manufacturability of the whole structure of the motor is improved.
2. The abdication hole is of a waist-shaped structure, so that the threading number can be increased, the space can be saved as much as possible, the power line derivation device is fixed in the abdication hole, the power line derivation device can prevent the power line and the cover plate from being worn, the power line is protected, and the abdication hole plays a role in guiding and reinforcing.
3. According to the invention, the groove is arranged at the edge of the upper end of the abdicating hole, and the boss matched with the groove is arranged at the edge of the power line guiding device, so that an effective clamping effect can be ensured, the positioning and fixing of the power line guiding device can be realized by double clamping positions, and the production and processing difficulty and the assembly difficulty of motor parts are reduced.
4. The inner wall of the water-cooling shell is provided with the mounting clamping position matched with the mounting hole, so that the water-cooling shell can play a role in guiding during mounting, the inner wall of the water-cooling shell is provided with the limiting boss for fixing the cover plate, the cover plate can be limited and fixed after mounting, the cover plate is prevented from being separated, the firmness of the cover plate in the dark place is ensured, and the fixing mode is simple and the mounting is convenient.
5. The first insulating isolation sleeve and the second insulating isolation sleeve are made of nonmetal attaching materials or coating materials with high insulating property, so that the electric insulation between the winding protection device and the winding coil is ensured, the alloy material winding protection device can improve the structural strength and reliability of resin injection molding materials and ensure the long-term stable operation of a motor, and meanwhile, the shaping requirement and difficulty of the winding coil at the end part of the stator can be reduced due to the effect of the insulating isolation devices, so that the production efficiency is improved.
6. According to the invention, the resin injection molding holes designed on the first winding protection device are used for injection molding, the number of the resin injection molding holes is two, one resin injection molding hole is used for injection molding, the other resin injection molding hole can be used as an injection molding liquid level observation hole, the injection molding process is completed in an auxiliary manner, and the processing convenience is improved.
Drawings
Fig. 1 is an overall sectional view of a stator;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a top view of the stator;
FIG. 4 is a schematic structural view of the first winding protection device in cooperation with the water-cooled housing;
FIG. 5 is a top view of the first winding protection device;
FIG. 6 is a cross-sectional view A-A of FIG. 5;
FIG. 7 is an enlarged view of FIG. 6 at B;
FIG. 8 is a schematic structural diagram of a power line lead-out device;
fig. 9 is a cross-sectional view of the power cord lead-out device.
In the figure: 1-power supply lead-out wire; 2-water cooling the shell; 201-a limit boss; 202-installing a clamping position; 3-resin injection molding material; 4-a stator core; 5-a winding coil; 6-a second winding protection device; 7-a second insulating spacer sleeve; 8-power line lead-out means; a 801-wire hole; 802-boss; 9-a first winding protection device; 901-resin injection molding holes; 902-a cover plate; 903-abdicating holes; 904-mounting holes; 905-a groove; 906-a stop collar; 10-first insulating spacer sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the first embodiment, the first step is,
as shown in fig. 1-9, a stator structure of an electric motor includes a water-cooled casing 2, a stator core 4 and a winding coil 5, the stator core 4 is disposed in the water-cooled casing 2, the winding coil 5 is disposed in the stator core 4, a first winding protection device 9 is disposed at one end of the winding coil 5, the first winding protection device 9 is assembled on an inner circular surface of the stator, a resin injection molding material 3 for connecting the water-cooled casing 2 and the winding coil 5 is disposed at the bottom of the first winding protection device 9, a power supply lead-out device 8 is disposed on the first winding protection device 9, a power supply lead-out wire 1 connected with the winding coil 5 is disposed in the power supply lead-out device 8, a second winding protection device 6 is disposed at the other end of the winding coil 5, and the resin injection molding material 3 is disposed between the second winding protection device 6 and the; the first winding protection device 9 and the second winding protection device are made of antirust alloy materials.
The first winding protection device 9 comprises a cover plate 902 and a limit ring 906, the limit ring 906 is connected with the inner side of the winding coil 5, the cover plate 902 is of an annular structure and is connected with the end part of the limit ring 906, and the outer edge of the cover plate 902 is connected with the water-cooling shell 2.
Be equipped with the hole 903 of stepping down on apron 902, the hole 903 of stepping down is waist shape structure, can increase threading quantity, can save space as far as possible simultaneously, power cord deriving device 8 is fixed in the hole 903 of stepping down, and power cord deriving device 8's middle part is equipped with line hole 801, and power cord deriving device 8 can prevent to take place wearing and tearing between power cord and the apron, has protected the power cord, plays direction, reinforced effect moreover.
Let the upper end edge of hole 903 be equipped with recess 905, the edge of power cord deriving device 8 be equipped with recess 905 complex boss 802, the width of boss 802 is more than or equal to 2mm can guarantee effectual block effect, and the location and the fixing of power cord guider are realized to two screens, reduce the production and processing degree of difficulty and the assembly degree of difficulty of motor element.
The cover plate 902 is provided with a resin injection hole 901. The edge of apron 902 is equipped with mounting hole 904, be equipped with on the inner wall of water-cooling casing 2 with mounting hole 904 complex installation screens 202, can play the guide effect when the installation, be equipped with the spacing boss 201 of fixed apron 902 on the inner wall of water-cooling casing 2, can carry out spacing fixed to the apron after the installation, prevent that the apron from deviating from, guarantee the fastness of apron installation, and fixed mode is simple, the installation is convenient.
In this embodiment, the second winding protector 6 is an annular cylindrical structure with one end open.
In the second embodiment, the first embodiment of the method,
as shown in fig. 1-9, a stator structure of an electric motor includes a water-cooled casing 2, a stator core 4 and a winding coil 5, the stator core 4 is disposed in the water-cooled casing 2, the winding coil 5 is disposed in the stator core 4, a first winding protection device 9 is disposed at one end of the winding coil 5, the first winding protection device 9 is assembled on an inner circular surface of the stator, a resin injection molding material 3 for connecting the water-cooled casing 2 and the winding coil 5 is disposed at the bottom of the first winding protection device 9, a power supply lead-out device 8 is disposed on the first winding protection device 9, a power supply lead-out wire 1 connected with the winding coil 5 is disposed in the power supply lead-out device 8, a second winding protection device 6 is disposed at the other end of the winding coil 5, and the resin injection molding material 3 is disposed between the second winding protection device 6 and the; the first winding protection device 9 and the second winding protection device are made of antirust alloy materials.
The first winding protection device 9 comprises a cover plate 902 and a limit ring 906, the limit ring 906 is connected with the inner side of the winding coil 5, the cover plate 902 is of an annular structure and is connected with the end part of the limit ring 906, and the outer edge of the cover plate 902 is connected with the water-cooling shell 2.
Be equipped with the hole 903 of stepping down on apron 902, the hole 903 of stepping down is waist shape structure, can increase threading quantity, can save space as far as possible simultaneously, power cord deriving device 8 is fixed in the hole 903 of stepping down, and power cord deriving device 8's middle part is equipped with line hole 801, and power cord deriving device 8 can prevent to take place wearing and tearing between power cord and the apron, has protected the power cord, plays direction, reinforced effect moreover.
Let the upper end edge of hole 903 be equipped with recess 905, the edge of power cord deriving device 8 be equipped with recess 905 complex boss 802, the width of boss 802 is more than or equal to 2mm can guarantee effectual block effect, and the location and the fixing of power cord guider are realized to two screens, reduce the production and processing degree of difficulty and the assembly degree of difficulty of motor element.
The cover plate 902 is provided with a resin injection hole 901.
The edge of apron 902 is equipped with mounting hole 904, be equipped with on the inner wall of water-cooling casing 2 with mounting hole 904 complex installation screens 202, be equipped with the spacing boss 201 of fixed apron 902 on the inner wall of water-cooling casing 2.
The second winding protection device 6 is an annular cylindrical structure with one open end.
On the basis of the first embodiment, a first insulating isolation sleeve 10 is arranged on the inner wall of the first winding protection device 9; and a second insulating isolation sleeve 7 is arranged on the inner wall of the second winding protection device 6. The first insulating isolation sleeve 10 and the second insulating isolation sleeve 7 are made of nonmetal attaching materials or coating materials with high insulating property, so that the electric insulation between the winding protection device and the winding coil 5 is ensured, the structural strength and the reliability of the resin injection molding material 3 can be improved by the alloy material winding protection device, the long-term stable operation of the motor is ensured, and meanwhile, the shaping requirements and the difficulty of the winding coil 5 at the end part of the stator can be reduced due to the effect of the insulating isolation devices, so that the production efficiency is improved.
The power line guiding device, the first winding protection device 6, the second winding protection device 6, the first insulation isolation sleeve 7 and the second insulation isolation sleeve 7 are assembled, the power supply leading-out wire 1 is led out from the wire hole 801 in cooperation with the stator end winding coil 5, the water-cooling shell 2 and the first winding protection device 9 which are installed in a hot sleeve mode are located in the circumferential direction through the installation clamping position 202, and the first winding protection device 9 is located in the axial direction through the limiting boss 201 of the water-cooling shell 2. The clamping size d between the water-cooling shell 2 and the first winding protection device 9 is designed to be in clearance fit, after the water-cooling shell 2 and the stator assembly (including 1, 4, 5, 6, 7 and 9) are fixed in interference fit, the first winding protection device 9 can be positioned and fixed, the clamping design can reduce complex assembly processes, direct hot sleeve forming is achieved, and the subsequent injection molding process is facilitated.
After the water-cooled casing 2 is installed in the hot jacket, as shown in fig. 3, injection molding is performed through two resin injection holes 901 designed in the first winding protection device 9, the two resin injection holes 901 are marked as a resin injection hole 901a and a resin injection hole 901b, and the resin injection hole 901b can be used as an injection molding liquid level observation hole to assist in completing the injection molding process.
Wherein the power line outlet angle is k, the diameter of a single power line is m, and the design range of the size corresponding to the design angle g of the power line guide device installation position, the design angle h of the outgoing line guide hole position and the width i in the attached figures 5-9 is as follows: i is more than m; g > h > k.
In the third embodiment, the first step is that,
an electric motor comprises the motor stator structure.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A stator structure for an electric motor, characterized in that: including water-cooling casing, stator core and winding coil, be equipped with stator core in the water-cooling casing, be equipped with the winding coil in the stator core, the one end of winding coil is equipped with first winding protection device, and first winding protection device's bottom is equipped with the resin injection molding material that is used for connecting water-cooling casing and winding coil, is equipped with power cord guiding device on the first winding protection device, be equipped with the power lead-out wire of being connected with the winding coil in the power cord guiding device, the other end of winding coil is equipped with second winding protection device, be equipped with the resin injection molding material between second winding protection device and the winding coil.
2. A stator structure of an electric motor according to claim 1, wherein: the first winding protection device comprises a cover plate and a limiting ring, the limiting ring is connected with the end of the stator core, the cover plate is of an annular structure and is connected with the end of the limiting ring, and the outer edge of the cover plate is connected with the water-cooling shell.
3. A stator structure of an electric motor according to claim 2, wherein: the cover plate is provided with a yielding hole, the power line guiding device is fixed in the yielding hole, and the middle of the power line guiding device is provided with a line hole.
4. A stator structure of an electric motor according to claim 3, wherein: the upper end edge of the abdicating hole is provided with a groove, and the edge of the power line guiding device is provided with a boss matched with the groove.
5. A stator structure of an electric motor according to claim 2, wherein: and the cover plate is provided with a resin injection molding hole.
6. A stator structure of an electric motor according to claim 2, wherein: the edge of apron is equipped with the mounting hole, be equipped with on the inner wall of water-cooling casing with mounting hole complex installation screens, be equipped with the spacing boss of fixed apron on the inner wall of water-cooling casing.
7. A stator structure of an electric motor according to claim 1, wherein: and a first insulating isolation sleeve is arranged on the inner wall of the first winding protection device.
8. A stator structure of an electric motor according to claim 1, wherein: the second winding protection device is of an annular cylindrical structure with one open end.
9. A stator structure for an electric motor according to claim 8, wherein: and a second insulating isolation sleeve is arranged on the inner wall of the second winding protection device.
10. An electric motor characterized by: an electric motor stator structure comprising any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010589196.8A CN111799915A (en) | 2020-06-24 | 2020-06-24 | Motor stator structure and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010589196.8A CN111799915A (en) | 2020-06-24 | 2020-06-24 | Motor stator structure and motor |
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| Publication Number | Publication Date |
|---|---|
| CN111799915A true CN111799915A (en) | 2020-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010589196.8A Pending CN111799915A (en) | 2020-06-24 | 2020-06-24 | Motor stator structure and motor |
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| CN (1) | CN111799915A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09322458A (en) * | 1996-05-29 | 1997-12-12 | Matsushita Seiko Co Ltd | Terminal block for winding treatment of electric motor |
| JP2003169434A (en) * | 2001-11-30 | 2003-06-13 | Toyota Motor Corp | Method of fairing and fixing coil end of stator or rotor of rotating electric machine, and device for fairing and fixing coil end |
| US20090273254A1 (en) * | 2008-05-02 | 2009-11-05 | Siemens Aktiengesellschaft | Encapsulated stator of a dynamo-electrical machine |
| CN104836360A (en) * | 2015-05-22 | 2015-08-12 | 广东威灵电机制造有限公司 | Stator winding end insulation frame, plastic-packaging stator assembly, and plastic-packaging motor |
| CN206370744U (en) * | 2016-12-28 | 2017-08-01 | 深圳东明机电股份有限公司 | Micromachine and its lead-out wire protective case |
-
2020
- 2020-06-24 CN CN202010589196.8A patent/CN111799915A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09322458A (en) * | 1996-05-29 | 1997-12-12 | Matsushita Seiko Co Ltd | Terminal block for winding treatment of electric motor |
| JP2003169434A (en) * | 2001-11-30 | 2003-06-13 | Toyota Motor Corp | Method of fairing and fixing coil end of stator or rotor of rotating electric machine, and device for fairing and fixing coil end |
| US20090273254A1 (en) * | 2008-05-02 | 2009-11-05 | Siemens Aktiengesellschaft | Encapsulated stator of a dynamo-electrical machine |
| CN104836360A (en) * | 2015-05-22 | 2015-08-12 | 广东威灵电机制造有限公司 | Stator winding end insulation frame, plastic-packaging stator assembly, and plastic-packaging motor |
| CN206370744U (en) * | 2016-12-28 | 2017-08-01 | 深圳东明机电股份有限公司 | Micromachine and its lead-out wire protective case |
Non-Patent Citations (1)
| Title |
|---|
| （德）尤尔根•布尔麦斯特著，杨祖群译: "《机械制造工程基础（中文版第三版）》", 31 January 2019, 湖南科学技术出版社 * |
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Application publication date: 20201020 |