CN113922555A - Motor end cover assembly, stator assembly and motor - Google Patents
Motor end cover assembly, stator assembly and motor Download PDFInfo
- Publication number
- CN113922555A CN113922555A CN202111182908.5A CN202111182908A CN113922555A CN 113922555 A CN113922555 A CN 113922555A CN 202111182908 A CN202111182908 A CN 202111182908A CN 113922555 A CN113922555 A CN 113922555A
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- CN
- China
- Prior art keywords
- motor
- controller
- stator
- end cover
- stator core
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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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
Abstract
The application provides a motor end cover subassembly, stator module and motor. The motor end cover assembly comprises a mounting bracket, a first end and a second end, wherein the first end and the second end are oppositely arranged, and the first end can be assembled with a stator core of a motor; the end cover covers the second end to form an assembly cavity; the controller is arranged in the assembly cavity; the gap in the assembly cavity is filled with the pouring sealant structure, so that the mounting bracket, the end cover and the controller form a pouring and sealing integrated structure. Constitute the assembly chamber through end cover and installing support for the controller is accomodate inside equipment, adopts the encapsulating structure simultaneously, makes whole end cover subassembly constitute the integrative structure of encapsulating, and stability obtains improving, avoids the controller to expose and leads to the damage risk outside, promotes motor controller and motor whole life-span and reliability.
Description
Technical Field
The application belongs to the technical field of motors, and particularly relates to a motor end cover assembly, a stator assembly and a motor.
Background
Along with market guidance and industry development requirements, an outer rotor motor is applied to the fields of mobile air conditioners, fans, CPU radiators and the like, a brushless direct-current outer rotor motor controller and a motor body in the industry at present both adopt a separation structure, a prism interference tight fit structure is adopted for mounting and fixing a stator, and the problems of reliability, vibration, service life and the like of the motor are particularly prominent. The traditional external rotor motor is exposed outside the controller, so that the service life of the motor is greatly shortened.
Disclosure of Invention
Therefore, the application provides a motor end cover subassembly, stator module and motor, can solve prior art well motor controller and expose outside greatly reduced motor life's problem.
In order to solve the above problem, the present application provides a motor end cover assembly, including:
the mounting bracket comprises a first end and a second end which are oppositely arranged, and the first end can be assembled with a stator core of the motor;
the end cover covers the second end to form an assembly cavity;
the controller is arranged in the assembly cavity;
the gap in the assembly cavity is filled with the pouring sealant structure, so that the mounting bracket, the end cover and the controller form a pouring and sealing integrated structure.
Optionally, the end cap and the second end are in sealing engagement.
Optionally, a positioning column is arranged on the end face of the second end, so that a gap is formed between the controller and the end face.
Optionally, the positioning column includes a boss type, a fitting hole is formed in the controller, and the positioning column is arranged in the fitting hole in a penetrating mode.
According to another aspect of the present application, there is provided a stator assembly comprising the motor end cover assembly as described above.
Optionally, the stator assembly further includes a stator core, a shaft sleeve is disposed at the first end of the mounting bracket, and the stator core is sleeved on the shaft sleeve.
Optionally, a locking structure is arranged on the peripheral wall of the shaft sleeve and can lock the position of the stator core on the shaft sleeve.
Optionally, the locking structure includes two protrusions, the protrusions are distributed along the axial direction of the shaft sleeve, and the axial distance between the two protrusions is equal to the axial distance between the stator cores.
Optionally, an insulating slot wedge is arranged on the stator core, a boss is arranged at one end, far away from the first end, of the insulating slot wedge, and the boss is in sealing contact with the shaft sleeve.
Optionally, a contact pin is arranged on the insulation slot wedge, a contact pin hole penetrating through the first end and the second end is formed in the mounting support, and the contact pin is inserted into the contact pin hole in a matched mode.
Optionally, the stator core includes an inner core and an outer core, and an axial through hole is provided between the outer core and the inner core; the mounting bracket is provided with a glue filling hole penetrating through the first end and the second end, the inside of the stator core is filled with the glue filling structure, and the mounting bracket, the end cover, the controller and the stator core form a filling and sealing integrated structure.
According to yet another aspect of the present application, there is provided an electric machine comprising an electric machine end cap assembly as described above or a stator assembly as described above.
The application provides a motor end cover subassembly includes: the mounting bracket comprises a first end and a second end which are oppositely arranged, and the first end can be assembled with a stator core of the motor; the end cover covers the second end to form an assembly cavity; the controller is arranged in the assembly cavity; the gap in the assembly cavity is filled with the pouring sealant structure, so that the mounting bracket, the end cover and the controller form a pouring and sealing integrated structure.
Constitute the assembly chamber through end cover and installing support for the controller is accomodate inside equipment, adopts the encapsulating structure simultaneously, makes whole end cover subassembly constitute the integrative structure of encapsulating, and stability obtains improving, avoids the controller to expose and leads to the damage risk outside, promotes motor controller and motor whole life-span and reliability.
Drawings
Fig. 1 is a schematic structural diagram of a motor end cover assembly according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a mounting bracket according to an embodiment of the present application;
FIG. 3 is a cross-sectional view of a mounting bracket according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a controller according to an embodiment of the present application;
FIG. 5 is a schematic structural view of an end cap according to an embodiment of the present application;
fig. 6 is a schematic structural view of a stator assembly according to an embodiment of the present application;
fig. 7 is a schematic structural view of a stator core according to an embodiment of the present application;
FIG. 8 is a schematic structural view of an insulation slot wedge according to an embodiment of the present application;
fig. 9 is a perspective view illustrating an assembled insulation wedge and stator core according to an embodiment of the present application;
fig. 10 is a schematic structural view of an outer rotor motor according to an embodiment of the present application;
fig. 11 is an exploded view of an outer rotor motor according to an embodiment of the present application.
The reference numerals are represented as:
1. mounting a bracket; 11. a positioning column; 12. a pin inserting hole; 13. a glue hole is arranged; 14. a shaft sleeve; 141. a protrusion; 2. an end cap; 21. filling glue holes; 3. a controller; 31. a pin inserting hole; 4. an assembly chamber; 5. a stator core; 51. an inner core; 52. an outer core; 6. an insulating slot wedge; 61. inserting a pin; 62. a boss; 7. encapsulating the glue structure; 8. a magnetic strip; 9. a housing; 10. a rotating shaft.
Detailed Description
Referring collectively to fig. 1-11, according to an embodiment of the present application, a motor end cap assembly includes:
the mounting bracket 1 comprises a first end and a second end which are oppositely arranged, and the first end can be assembled with a stator core 5 of the motor;
the end cover 2 is covered on the second end to form an assembly cavity 4;
the controller 3 is arranged in the assembly cavity 4;
the pouring sealant structure 7 is filled in the gap in the assembly cavity 4, so that the mounting bracket 1, the end cover 2 and the controller 3 form a pouring and sealing integrated structure.
Constitute assembly chamber 4 through end cover 2 and installing support 1 for controller 3 is accomodate inside equipment, adopts the pouring sealant structure 7 simultaneously, makes 2 subassemblies of whole end cover constitute integrative structure of pouring sealant, and stability obtains improving, avoids controller 3 to expose outside and leads to damaging the risk, promotes motor controller 3 and motor whole life-span and reliability.
The outer side wall of the mounting bracket 1 is provided with a mounting hole structure, so that the motor is guaranteed to be vertically mounted. The controller 3 is structurally designed with a reinforced fastening structure, and holes are formed in the inner side of the controller to facilitate blanking.
In some embodiments, the end cap 2 and the second end are in sealing engagement.
And the sealing fit is adopted, so that the sealing performance of the assembly cavity 4 is good, and the glue filling efficiency is improved. The specific structure of sealing fit can comprise an assembly sealing groove arranged on the mounting bracket 1, and the side edge of the end cover 2 is inserted into the assembly sealing groove.
In some embodiments, a positioning column 11 is disposed on an end surface of the second end, so that a gap is disposed between the controller 3 and the end surface. Preferably, the positioning column 11 includes a boss 62 type, an assembly hole is provided on the controller 3, and the positioning column 11 is inserted into the assembly hole.
The quantity N of the positioning columns 11 is more than or equal to 3 and is uniformly distributed, the controller 3 is prevented from inclining and deviating during encapsulation, the positioning columns 11 are of upper and lower boss 62 types, the controller 3 and the support are prevented from being abraded, and the upper and lower surfaces of the controller 3 are in contact with the encapsulation glue to increase the stability of the controller.
According to another aspect of the present application, there is provided a stator assembly comprising the motor end cover assembly as described above.
In some embodiments, the stator assembly further includes a stator core 5, a shaft sleeve 14 is disposed at the first end of the mounting bracket 1, and the stator core 5 is sleeved on the shaft sleeve 14.
Establish stator core 5 on the axle sleeve 14 of the first end of installing support 1, locate the relative both sides of installing support 1 with controller 3 branch, avoid interfering, improve equipment's stability.
In some embodiments, the outer circumferential wall of the sleeve 14 is provided with a locking structure capable of locking the position of the stator core 5 on the sleeve 14. Preferably, the locking structure includes two protrusions 141, the two protrusions 141 are distributed along the axial direction of the shaft sleeve 14, and the axial distance between the two protrusions 141 is equal to the axial distance of the stator core 5.
The shaft sleeve 14 is provided with a locking structure with the protrusion 141 to form an I-shaped structure, and the stator core 5 is just arranged in the middle of the I-shaped structure, so that the coaxiality of the stator core 5 and the installation support 1 is effectively guaranteed while the pretightening force of the stator core and the installation support is guaranteed.
In some embodiments, the stator core 5 is provided with an insulation slot wedge 6, and an end of the insulation slot wedge 6 away from the first end is provided with a boss 62, and the boss 62 is in sealing contact with the shaft sleeve 14.
By providing the boss 62 on the insulation slot wedge 6 of the stator core 5, the boss 62 comes into sealing contact with the sleeve 14, and dust can be prevented from entering.
In some embodiments, the insulation wedge 6 is provided with a pin 61, the mounting bracket 1 is provided with a pin 61 hole 3112 penetrating the first end and the second end, and the pin 61 is fittingly inserted in the pin 61 hole 3112.
Establish contact pin 61 on insulating slot wedge 6 to and establish contact pin 61 hole 3112 on installing support 1, in order to improve stability, can also set up contact pin 61 hole 3112 on controller 3, contact pin 61 passes contact pin 61 hole 3112 on installing support 1 in proper order and inserts contact pin 61 hole 3112 on controller 3 again, accomplishes the installation after welding contact pin 61 with controller 3 finally.
In some embodiments, the stator core 5 includes an inner core 51 and an outer core 52, and an axial through hole is provided between the outer core 52 and the inner core 51; installing support 1 is equipped with and link up the first end with the encapsulating hole 21 of second end, encapsulating structure 7 is still filled inside stator core 5, can make installing support 1 the end cover 2 controller 3 with stator core 5 constitutes embedment integral structure.
With controller 3 and installing support 1 sealed through the casting glue, the stator adopts the locking to detain the mounting means simultaneously to guarantee that its gradual change magnetic pull force evenly acts on the iron core, can greatly vibration/noise reduction, increase motor life, solve the difficult problem of trade.
Meanwhile, the iron core and the controller 3 are encapsulated integrally, so that the coaxiality among the motor stator, the rotor and the controller 3 is higher, the uniformity of an air gap is improved, the magnetic tension is uniform in a large-small period, the vibration of the motor is reduced, and the noise problem is avoided.
According to a further aspect of the present application, there is provided an electric machine comprising an electric machine end cap 2 assembly as described above or a stator assembly as described above.
The motor comprises an outer rotor motor, as shown in fig. 10 and 11, magnetic strips 8 and a casing 9 are arranged at intervals on the periphery of a stator core 5, the magnetic strips 8 rotate under the action of the stator core 5, and the casing 9 and a rotating shaft 10 fixed on the casing are driven to rotate.
Firstly controller 3, installing support 1, after stator core 5 and end cover 2 are assembled and welded, pour into the casting glue through pouring glue hole 21 on end cover 2, guarantee between controller 3 and installing support 1, the axiality between stator and the installing support 1, guarantee that its gradual change magnetic pull can not take place the distortion, the inside and outside stator core 5 structure of collocation simultaneously in order to reach the vibration/noise reduction effect, promote the holistic stability of motor, the postweld treatment process can promote motor product manufacturability and production efficiency.
It is easily understood by those skilled in the art that the above embodiments can be freely combined and superimposed without conflict.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.
Claims (12)
1. An electric machine end cap assembly, comprising:
the mounting bracket (1) comprises a first end and a second end which are oppositely arranged, and the first end can be assembled with a stator core (5) of the motor;
the end cover (2), the said end cover (2) is covered on the said second end, form and assemble the cavity (4);
the controller (3) is arranged in the assembly cavity (4);
and the mounting bracket (1), the end cover (2) and the controller (3) form an integrated encapsulation structure, and the encapsulation structure (7) fills the gap in the assembly cavity (4).
2. An electric machine end cap assembly according to claim 1, wherein the end cap (2) and the second end are in sealing engagement.
3. The end cover assembly of the motor according to claim 1 or 2, wherein the end face of the second end is provided with a positioning column (11) so that a gap is formed between the controller (3) and the end face.
4. The motor end cover assembly according to claim 3, wherein the positioning column (11) comprises a boss (62) type, a fitting hole is formed in the controller (3), and the positioning column (11) is arranged in the fitting hole in a penetrating mode.
5. A stator assembly comprising the motor end cap assembly of any of claims 1-4.
6. The stator assembly according to claim 5, further comprising a stator core (5), wherein a shaft sleeve (14) is disposed at the first end of the mounting bracket (1), and the stator core (5) is sleeved on the shaft sleeve (14).
7. The stator assembly according to claim 6, characterized in that the outer circumference of the sleeve (14) is provided with a locking structure capable of locking the position of the stator core (5) on the sleeve (14).
8. The stator assembly according to claim 7, characterized in that the locking structure comprises two protrusions (141), the two protrusions (141) are distributed along the axial direction of the shaft sleeve (14), and the axial distance between the two protrusions (141) is equal to the axial distance of the stator core (5).
9. The stator assembly according to claim 8, characterized in that the stator core (5) is provided with an insulation slot wedge (6), the insulation slot wedge (6) is provided with a boss (62) at an end away from the first end, and the boss (62) is in sealing contact with the shaft sleeve (14).
10. The stator assembly according to claim 9, characterized in that the insulation slot wedges (6) are provided with pins (61), the mounting bracket (1) is provided with pin (61) holes (31) (12) penetrating the first end and the second end, and the pins (61) are fittingly inserted in the pin (61) holes (31) (12).
11. The stator assembly according to claim 9 or 10, characterized in that the stator core (5) comprises an inner core (51) and an outer core (52), an axial through hole being provided between the outer core (52) and the inner core (51); installing support (1) is equipped with and link up first end with encapsulating hole (21) of second end, the encapsulating is glued structure (7) and is still filled inside stator core (5), can make installing support (1) end cover (2) controller (3) with stator core (5) constitute embedment integral structure.
12. An electrical machine comprising a machine end cap assembly according to any of claims 1 to 4 or a stator assembly according to any of claims 5 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111182908.5A CN113922555A (en) | 2021-10-11 | 2021-10-11 | Motor end cover assembly, stator assembly and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111182908.5A CN113922555A (en) | 2021-10-11 | 2021-10-11 | Motor end cover assembly, stator assembly and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113922555A true CN113922555A (en) | 2022-01-11 |
Family
ID=79239148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111182908.5A Pending CN113922555A (en) | 2021-10-11 | 2021-10-11 | Motor end cover assembly, stator assembly and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113922555A (en) |
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| CN112054622A (en) * | 2020-08-31 | 2020-12-08 | 深圳拓邦股份有限公司 | Brushless motor with outer rotor |
| CN212115077U (en) * | 2020-04-28 | 2020-12-08 | 浙江三花制冷集团有限公司 | A kind of pump |
| CN113417878A (en) * | 2021-08-03 | 2021-09-21 | 烟台东德实业有限公司 | Stator-encapsulated hydrogen circulating pump and manufacturing method thereof |
| CN113431789A (en) * | 2021-08-03 | 2021-09-24 | 烟台东德实业有限公司 | Full-encapsulation hydrogen circulating pump and manufacturing method thereof |
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2021
- 2021-10-11 CN CN202111182908.5A patent/CN113922555A/en active Pending
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| CN2938544Y (en) * | 2006-04-14 | 2007-08-22 | 宁波菲仕电机技术有限公司 | Integral electric machine |
| CN201226465Y (en) * | 2008-06-26 | 2009-04-22 | 中山大洋电机股份有限公司 | External rotor motor |
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Application publication date: 20220111 |
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