CN211377708U - Brushless motor for spraying machine - Google Patents
Brushless motor for spraying machine Download PDFInfo
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- CN211377708U CN211377708U CN202020247053.4U CN202020247053U CN211377708U CN 211377708 U CN211377708 U CN 211377708U CN 202020247053 U CN202020247053 U CN 202020247053U CN 211377708 U CN211377708 U CN 211377708U
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Abstract
The utility model relates to a brushless motor for a coating machine, which comprises a shell, a motor shaft and a stator component, wherein the motor shaft and the stator component are arranged in the shell; a rotor is fixedly arranged on a motor shaft; the stator assembly is coaxially arranged with the rotor and sleeved outside the rotor; the stator assembly comprises a stator iron core fastened on the inner wall of the shell and a stator insulating layer sleeved in the stator iron core; a shaft hole is formed in the stator insulating layer, and the rotor is located in the shaft hole; the brushless motor of the utility model has the advantages of simple and compact structure and convenient installation; the stator assembly comprises a stator core fastened on the inner wall of the shell and a stator insulating layer sleeved in the stator core, and has the advantage of convenience in installation; compared with the traditional brushless motor, the utility model discloses a structure can the significantly reduced stator winding's tip length to reduce the copper loss, be favorable to the improvement of efficiency.
Description
Technical Field
The utility model belongs to the technical field of electrical equipment, especially, relate to a brushless motor for flush coater.
Background
A dc brushless motor is a driving motor that can convert a voltage signal into torque and a rotational speed to drive a control object. The rotating speed of the motor rotor of the direct current brushless motor is controlled by the controller and can quickly respond. The automatic control system is used as an actuator and has the characteristics of small motor time constant, high linearity, small starting voltage and the like.
The motors of the existing spraying machine are driven by large motors, so that the spraying machine occupies space, is unstable in operation and has poor controllability.
In view of the above problems, it is necessary to improve them.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome the defect among the above-mentioned prior art, provide a simple structure, it is small, reduce the volume and the quality of motor, improve the torque density of motor's the direct current brushless motor that is used for the flush coater.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a brushless motor for a spraying machine comprises a machine shell, a motor shaft and a stator assembly, wherein the motor shaft and the stator assembly are arranged in the machine shell; a rotor is fixedly arranged on a motor shaft; the stator assembly is coaxially arranged with the rotor and sleeved outside the rotor; the stator assembly comprises a stator iron core fastened on the inner wall of the shell and a stator insulating layer sleeved in the stator iron core; and a shaft hole is formed in the stator insulating layer, and the rotor is positioned in the shaft hole.
As a preferred scheme of the present invention, the outer stator includes a main circular cylinder formed with the shaft hole, and a plurality of strip-shaped main T-shaped blocks for winding the coil are equidistantly distributed on an inner circumferential wall surface of the main circular cylinder along a bus direction thereof; correspondingly, the inner stator device is provided with a strip-shaped positioning groove matched with the strip-shaped main T-shaped block, and the strip-shaped main T-shaped block is assembled in the strip-shaped positioning groove.
As an optimal solution of the utility model, the equidistance of a plurality of long strip-shaped main T-shaped blocks is laid, and a coil groove is formed between adjacent long strip-shaped main T-shaped blocks.
As a preferred scheme of the utility model, a left positioning plate and a right positioning plate are formed on two sides of the strip-shaped positioning groove; the left positioning plate and the right positioning plate are consistent with the inner wall plate structure of the strip-shaped main T-shaped block.
As an optimized scheme of the utility model, the stator insulating layer includes that left stator slot is insulating and right stator slot is insulating.
As a preferred scheme of the utility model, a left positioning ring and a right positioning ring are respectively formed outside the left stator slot insulator and the right stator slot insulator; the left stator slot insulator and the right stator slot insulator are sleeved in the stator core, and the left positioning ring and the right positioning ring are used for fastening the left stator slot insulator and the right stator slot insulator on the stator core.
As an optimized scheme of the utility model, the rotor is including the fastening the epaxial column silicon steel spare of motor, fastening are in bar magnet steel in the silicon steel spare square groove, wherein, bar magnet steel fastening is in on the silicon steel spare.
As a preferred scheme of the utility model, the casing is including being the installation barrel that cylinder and both ends opening were arranged, and the one end opening part of installation barrel is coaxial to be provided with rather than can dismantling to be connected the circular front end housing of complex, and the other end opening part is coaxial to be provided with circular rear end housing.
As a preferred scheme of the utility model, the rear end cover is fixedly connected with the casing and integrally formed, and a plurality of ventilation grooves are formed on the rear end cover; the motor shaft is rotationally connected to the middle part of the rear end cover.
As an optimized scheme of the utility model, the front end of motor shaft has cup jointed the fan blade, the fan blade is driven by the motor shaft and is rotated, and the fan blade assembles between circular front end housing and casing.
The utility model has the advantages that:
1. the brushless motor of the utility model has the advantages of simple and compact structure and convenient installation; the stator assembly comprises a stator core fastened on the inner wall of the shell and a stator insulating layer sleeved in the stator core, and has the advantage of convenience in installation; compared with the traditional brushless motor, the structure of the utility model can greatly reduce the length of the end part of the stator winding, thereby reducing copper loss and being beneficial to improving efficiency;
2. the stator insulating layer of the utility model comprises a left stator slot insulator and a right stator slot insulator; the stator insulation layer is sleeved on the stator iron core, and the armature winding of the stator is loaded with control voltage, so that the magnetic flux between the magnetic field generated by the armature winding and the magnetic field generated by the permanent magnet can be changed, the torque of the rotor part is changed, the rotating speed of the motor is improved, and the rotating speed can reach 10000 plus 30000 rpm;
3. the winding coils of the utility model are independent and have a slot space, so that the automatic coil inserting of a machine can be realized in the manufacturing process, the manufacturing process is simplified, and the cost is saved;
4. the mutual inductance is very small because of no coupling among all the wire groups, so that each phase can be independently controlled, and the controllability of the motor is improved;
5. the stator assembly of the utility model comprises a stator core fastened on the inner wall of the shell and a stator insulating layer sleeved in the stator core, and the stator assembly is provided with an inner concentric stator structure and an outer concentric stator structure, the middle part is a cup-shaped rotor, and a bar-shaped magnetic steel is fastened on a silicon steel piece; therefore, the structure can sufficiently reduce the height of the rotor yoke, thereby reducing the volume and the mass of the motor and improving the torque density of the motor;
6. adopt multipolar structure, this structure can show and reduce stator yoke portion height to reduce the volume and the iron core quantity of motor, further improve torque density, multipolar structure's motor still is showing and has reduced stator tip length, reduces stator copper loss and generate heat, has improved efficiency.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic view of a housing structure according to an embodiment of the present invention;
fig. 3 is a front view of an embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of an embodiment of the present invention;
fig. 5 is a side view of an embodiment of the invention;
FIG. 6 is a cross-sectional view taken along line B-B of an embodiment of the present invention;
fig. 7 is an exploded view of an embodiment of the present invention;
reference numbers in the figures: the motor comprises a machine shell 1, a motor shaft 2, a rotor 3, a stator assembly 4, a long main T-shaped block 5, a long positioning groove 6, a left positioning plate 7, a right positioning plate 8, a fan blade 9, a silicon steel piece 31, strip-shaped magnetic steel 32, a stator insulating layer 40, a stator core 41, an installation barrel 101, a front end cover 102, a rear end cover 103, a ventilation groove 104, a left stator groove insulator 401, a right stator groove insulator 402, a left positioning ring 403 and a right positioning ring 404.
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 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.
Example (b):
as shown in fig. 1 to 7, the present embodiment provides a brushless motor for a painting machine, which includes a housing 1, a motor shaft 2 disposed inside the housing 1, and a stator assembly 4; a rotor 3 is fixedly arranged on the motor shaft 2; the stator assembly 4 is coaxially arranged with the rotor 3, and the stator assembly 4 is sleeved outside the rotor 3; the stator assembly 4 comprises a stator core 41 fastened on the inner wall of the casing 1 and a stator insulating layer 40 sleeved in the stator core 41; a shaft hole is formed in the stator insulating layer 40, and the rotor 3 is located in the shaft hole; the brushless motor of the utility model has the advantages of simple and compact structure and convenient installation; the stator assembly comprises a stator core fastened on the inner wall of the shell and a stator insulating layer sleeved in the stator core, and has the advantage of convenience in installation; compared with the traditional brushless motor, the utility model discloses a structure can the significantly reduced stator winding's tip length to reduce the copper loss, be favorable to the improvement of efficiency.
The stator core 41 comprises a main circular cylinder body formed with the shaft hole, and a plurality of strip-shaped main T-shaped blocks 5 which are arranged along the bus direction and used for winding coils are distributed on the inner circumferential wall surface of the main circular cylinder body at equal intervals; correspondingly, the stator insulating layer 40 is provided with a strip-shaped positioning groove 6 matched with the strip-shaped main T-shaped block 5, and the strip-shaped main T-shaped block 5 is assembled in the strip-shaped positioning groove 6; the long-strip-shaped main T-shaped blocks 5 are arranged at equal intervals, and a coil groove is formed between every two adjacent long-strip-shaped main T-shaped blocks 5; the utility model discloses a because the winding coil is all independent, has a groove interval, can realize the machine automatic line of inserting in manufacturing process, consequently simplified the manufacturing process, practiced thrift the cost.
The stator insulation layer 40 includes a left stator slot insulation 401 and a right stator slot insulation 402; the stator insulating layer of the utility model comprises a left stator slot insulator and a right stator slot insulator; the rotor structure has the advantages of ingenious structural design, simple principle, low production cost and convenience in overhauling and maintenance, the stator insulating layer is sleeved on the stator core, the armature winding of the stator is loaded with control voltage, the size of magnetic flux between the magnetic field generated by the armature winding and the magnetic field generated by the permanent magnet can be changed, so that the torque of the rotor part is changed, the rotating speed of the motor is increased, and the motor structure can reach 10000-30000 rpm.
Specifically, a left positioning plate 7 and a right positioning plate 8 are formed on two sides of the strip-shaped positioning groove 6; the left positioning plate 7 and the right positioning plate 8 are consistent with the inner wall plate structure of the strip-shaped main T-shaped block 5; the structure that the stator insulating layer 40 is sleeved on the stator core 41 is more compact, and a left positioning ring 403 and a right positioning ring 404 are respectively formed on the outer sides of the left stator slot insulator 401 and the right stator slot insulator 402; the left stator slot insulator 401 and the right stator slot insulator 402 are sleeved in the stator core 41, and the left positioning ring 403 and the right positioning ring 404 are used for fastening the left stator slot insulator 401 and the right stator slot insulator 402 on the stator core 41; because the wire groups are not coupled, the mutual inductance is very small, so that each phase can be independently controlled, and the controllability of the motor is improved.
The rotor 3 comprises a columnar silicon steel part 31 fastened on the motor shaft 2 and a strip-shaped magnetic steel 32 fastened in a square groove of the silicon steel part 31, wherein the strip-shaped magnetic steel is fastened on the silicon steel part 31; in this scheme, silicon steel part 31 is piled up by a plurality of silicon steel sheets and is formed, the shaping has a plurality of square grooves that distribute along the axial on silicon steel part 31's the round end face, the square groove is used for installing bar magnet steel.
The casing 1 comprises a cylindrical mounting cylinder 101 with openings at two ends, a circular front end cover 102 detachably connected and matched with the cylindrical mounting cylinder 101 is coaxially arranged at the opening at one end of the mounting cylinder 101, and a circular rear end cover 103 is coaxially arranged at the opening at the other end of the mounting cylinder; the rear end cover 103 is formed with a bearing hole for accommodating a bearing, the bearing is arranged between the bearing and the end part of the bearing hole, the bearing has the function of adjusting the axial clearance, and a gasket is arranged between the bearing and the end part of the bearing hole.
The rear end cover 103 is fixedly connected with the casing 1 and integrally formed, so that the structural strength and the integral firmness of the whole casing 1 are improved, and the use safety is further ensured; a plurality of ventilation grooves 104 are formed on the rear end cover 103; the motor shaft 2 is rotationally connected to the middle part of the rear end cover 103; the overall heat dissipation performance of the brushless motor is improved.
The front end of the motor shaft 2 is sleeved with a fan blade 9, the fan blade 9 is driven by the motor shaft 2 to rotate, and the fan blade 9 is assembled between the circular front end cover 102 and the casing 1.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more here: the stator comprises a machine shell 1, a motor shaft 2, a rotor 3, a stator assembly 4, a strip-shaped main T-shaped block 5, a strip-shaped positioning groove 6, a left positioning plate 7, a right positioning plate 8, a fan blade 9, a silicon steel piece 31, strip-shaped magnetic steel 32, a stator insulating layer 40, a stator iron core 41, an installation barrel 101, a front end cover 102, a rear end cover 103, a ventilation groove 104, a left stator groove insulator 401, a right stator groove insulator 402, a left positioning ring 403, a right positioning ring 404 and other terms, but the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (10)
1. A brushless motor for a spray coater, comprising: comprises a machine shell (1), a motor shaft (2) and a stator component (4) which are arranged in the machine shell (1); a rotor (3) is fastened on the motor shaft (2); the stator assembly (4) is coaxially arranged with the rotor (3), and the stator assembly (4) is sleeved outside the rotor (3); the stator assembly (4) comprises a stator core (41) fastened on the inner wall of the shell (1) and a stator insulating layer (40) sleeved in the stator core (41); a shaft hole is formed in the stator insulating layer (40), and the rotor (3) is located in the shaft hole.
2. A brushless motor for a spray applicator as defined in claim 1, wherein: the stator core (41) comprises a main circular cylinder body formed with a shaft hole, and a plurality of strip-shaped main T-shaped blocks (5) which are arranged along the bus direction and used for winding coils are distributed on the inner circumferential wall surface of the main circular cylinder body at equal intervals; correspondingly, the stator insulating layer (40) is provided with a strip-shaped positioning groove (6) matched with the strip-shaped main T-shaped block (5), and the strip-shaped main T-shaped block (5) is assembled in the strip-shaped positioning groove (6).
3. A brushless motor for a spray applicator as defined in claim 2, wherein: a plurality of strip-shaped main T-shaped blocks (5) are arranged at equal intervals, and a coil groove is formed between every two adjacent strip-shaped main T-shaped blocks (5).
4. A brushless motor for a spray applicator as defined in claim 2, wherein: a left positioning plate (7) and a right positioning plate (8) are formed on two sides of the strip-shaped positioning groove (6); the left positioning plate (7) and the right positioning plate (8) are consistent with the inner wall plate structure of the strip-shaped main T-shaped block (5).
5. A brushless motor for a spray applicator as claimed in claim 4, wherein: the stator insulation layer (40) comprises a left stator slot insulation (401) and a right stator slot insulation (402).
6. A brushless motor for a spray applicator as claimed in claim 5, wherein: a left positioning ring (403) and a right positioning ring (404) are respectively formed on the outer sides of the left stator slot insulator (401) and the right stator slot insulator (402); the left stator slot insulator (401) and the right stator slot insulator (402) are sleeved in the stator core (41), and the left positioning ring (403) and the right positioning ring (404) are used for fastening the left stator slot insulator (401) and the right stator slot insulator (402) on the stator core (41).
7. A brushless motor for a spray applicator as defined in claim 1, wherein: the rotor (3) comprises a cylindrical silicon steel part (31) fastened on the motor shaft (2) and a bar-shaped magnetic steel (32) fastened in a square groove of the silicon steel part (31), wherein the bar-shaped magnetic steel (32) is fastened on the silicon steel part (31).
8. A brushless motor for a spray applicator as defined in claim 1, wherein: the casing (1) comprises a cylindrical mounting cylinder body (101) with openings at two ends, a circular front end cover (102) detachably connected and matched with the mounting cylinder body (101) is coaxially arranged at the opening at one end of the mounting cylinder body (101), and a circular rear end cover (103) is coaxially arranged at the opening at the other end of the mounting cylinder body.
9. A brushless motor for a spray applicator as defined in claim 8, wherein: the rear end cover (103) is fixedly connected with the shell (1) and integrally formed, and a plurality of ventilation grooves (104) are formed in the rear end cover (103); the motor shaft (2) is rotationally connected to the middle part of the rear end cover (103).
10. A brushless motor for a spray applicator as defined in claim 9, wherein: the fan blade (9) is sleeved at the front end of the motor shaft (2), the fan blade (9) is driven by the motor shaft (2) to rotate, and the fan blade (9) is assembled between the circular front end cover (102) and the casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020247053.4U CN211377708U (en) | 2020-03-03 | 2020-03-03 | Brushless motor for spraying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020247053.4U CN211377708U (en) | 2020-03-03 | 2020-03-03 | Brushless motor for spraying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211377708U true CN211377708U (en) | 2020-08-28 |
Family
ID=72154048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020247053.4U Active CN211377708U (en) | 2020-03-03 | 2020-03-03 | Brushless motor for spraying machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211377708U (en) |
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2020
- 2020-03-03 CN CN202020247053.4U patent/CN211377708U/en active Active
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