CN214205296U - Direct current brushless motor - Google Patents
Direct current brushless motor Download PDFInfo
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- CN214205296U CN214205296U CN202120143091.XU CN202120143091U CN214205296U CN 214205296 U CN214205296 U CN 214205296U CN 202120143091 U CN202120143091 U CN 202120143091U CN 214205296 U CN214205296 U CN 214205296U
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Abstract
The utility model discloses a brushless DC motor in brushless motor field, including casing and protecgulum, casing one side is provided with the protecgulum, the casing with the protecgulum passes through bolted connection, be provided with the sheath of being qualified for the next round of competitions on the casing outer wall, the sheath of being qualified for the next round of competitions runs through the shroud setting, be provided with first bearing in the hole at protecgulum middle part, first bearing with the card is pressed there is adjusting shim between the protecgulum. The utility model discloses in install rotor magnet steel through the magnet steel caulking groove at brake rotor, install stator magnet steel in the magnet steel caulking groove of brake stator, motor rotor subassembly relies on the magnetic adsorption power speed reduction brake between rotor magnet steel and the stator magnet steel, adopts magnet steel magnetic adsorption power to realize that electron rotor shuts down the braking, and assembly structure is simple, reduces motor installation, use and maintenance cost by a wide margin.
Description
Technical Field
The utility model relates to a brushless motor field specifically is a DC brushless motor.
Background
The brushless DC motor consists of a motor body and a driver, and is a typical electromechanical integrated product. Because the brushless DC motor runs in an automatic control mode, a starting winding is not additionally arranged on a rotor like a synchronous motor which is started under heavy load under variable frequency speed regulation, oscillation and step loss can not be generated when the load suddenly changes, and a permanent magnet of the brushless DC motor with medium and small capacity is adopted, so that rare earth neodymium iron boron (Nd-Fe-B) materials with high magnetic energy level are mostly adopted at present. However, when the existing brushless motor works or stops, the brake disc is usually adopted to realize braking according to friction force, and with the friction loss of the brake disc, the braking force of the brake disc is weaker and weaker, and even the effective braking cannot be realized. Therefore, the brake disc is used as a vulnerable part, needs to be replaced and maintained frequently, and is high in use and maintenance cost.
Disclosure of Invention
An object of the utility model is to provide a brushless DC motor, it adopts magnet steel magnetic adsorption power to realize that the electronic rotor shuts down the braking, and assembly structure is simple, reduces motor installation, use and maintenance cost by a wide margin.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a brushless DC motor, includes protecgulum and casing, the protecgulum with the casing is the shaping respectively has the bearing frame, the bearing frame of protecgulum is equipped with first bearing, the bearing frame of casing is equipped with the second bearing, the protecgulum with the casing is connected, be equipped with stator module and rotor subassembly in the casing, the rotor subassembly both ends are held respectively and are arranged in first bearing with the second bearing to make the rotor subassembly rotate and set up in stator module, its characterized in that: the rotor assembly comprises a rotating shaft extending out of the second bearing, the rotating shaft is fixedly connected with a brake rotor, a plurality of rotor magnetic steels are uniformly distributed on the periphery of the brake rotor, a cover is arranged on the outer side of the second bearing of the shell, the cover is fixedly connected with a brake stator, and a plurality of stator magnetic steels which are matched with the rotor magnetic steels in a magnetic attraction mode are uniformly distributed on the inner wall of the brake stator; rotor magnetic steel is installed in the magnetic steel caulking groove of the brake rotor, stator magnetic steel is installed in the magnetic steel caulking groove of the brake stator, the motor rotor assembly decelerates and brakes by means of magnetic adsorption force between the rotor magnetic steel and the stator magnetic steel, the electronic rotor is stopped and braked by the aid of the magnetic adsorption force of the magnetic steel, the assembling structure is simple, and the installation, use and maintenance cost of the motor is greatly reduced.
As a further aspect of the present invention: an outgoing line sheath is arranged on the outer wall of the shell and penetrates through the cover cap, and an adjusting gasket is clamped and pressed between the first bearing and the front cover; the outgoing line sheath can seal outgoing lines of the brushless motor.
As a further aspect of the present invention: the motor rotating shaft is arranged in the first bearing, the motor rotating shaft is connected with the front cover in a rotating mode through the first bearing, and a flat key is arranged on the motor rotating shaft.
As a further aspect of the present invention: a signal magnetic ring is arranged on the outer wall of the motor rotating shaft and positioned on one side of the first bearing, a Hall assembly is arranged on one side of the signal magnetic ring, the signal magnetic ring is fixedly connected with the motor rotating shaft, the Hall assembly is connected with the inner wall of the front cover through a screw, and the signal magnetic ring is made of ferrite; the Hall assembly can alternately change the reverse direction of the entering current, so that the direction of the magnetic force on each stator assembly is changed, and a staggered adsorption force is formed between the Hall assembly and the rotor assembly.
As a further aspect of the present invention: the cover is provided with a cross-recessed pan head screw, a spring washer penetrates through the cross-recessed pan head screw, and the cover and the shell are fixedly connected through the cross-recessed pan head screw; the spring pad plays a role of preventing the wire from withdrawing, so that the cover cap can be firmly connected with the shell.
As a further aspect of the present invention: a wave-shaped pad is arranged between one side of the second bearing and the shell, and the rotating shaft of the motor is rotationally connected with the other end of the shell through the second bearing; the wave-shaped pad plays a role in supporting and mounting the second bearing.
As a further aspect of the present invention: the brake rotor is arranged on the outer wall of the motor rotating shaft, one side of the brake rotor is clamped and pressed with an elastic check ring, and the periphery of the brake stator is fixedly connected with brake magnetic steel.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses in install rotor magnet steel through the magnet steel caulking groove at brake rotor, install stator magnet steel in the magnet steel caulking groove of brake stator, motor rotor subassembly relies on the magnetic adsorption power speed reduction brake between rotor magnet steel and the stator magnet steel, adopts magnet steel magnetic adsorption power to realize that electron rotor shuts down the braking, and assembly structure is simple, reduces motor installation, use and maintenance cost by a wide margin.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a main sectional view of the middle brake stator of the present invention.
Fig. 3 is a left side view of the middle brake stator of the present invention.
Fig. 4 is the connection relation schematic diagram of the middle brake rotor, the rotor magnetic steel, the brake stator, the stator magnetic steel and the motor shaft.
In the figure: 1. a front cover; 2. adjusting the gasket; 3. a first bearing; 4. a wire outlet sheath; 5. a Hall assembly; 6. a signal magnetic ring; 7. a stator assembly; 8. a rotor assembly; 9. a second bearing; 10. a wave pad; 11. a cover; 12. a brake stator; 13. a brake rotor; 14. a circlip; 15. brake magnetic steel; 16. a cross recessed pan head screw; 17. a spring pad; 18. a flat bond; 19. rotor magnetic steel; 20. stator magnetic steel; 21. a motor shaft; 22. a housing.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
Please refer to fig. 1-4, in the embodiment of the present invention, a dc brushless motor, including protecgulum 1 and casing 22, protecgulum 1 and casing 22 are the shaping respectively has the bearing frame, the bearing frame of protecgulum 1 is equipped with first bearing 3, the bearing frame of casing 22 is equipped with second bearing 9, protecgulum 1 is connected with casing 22, be equipped with stator module 7 and rotor subassembly 8 in the casing 22, first bearing 3 and second bearing 9 are arranged respectively to 8 both ends of rotor subassembly, so that 8 rotations of rotor subassembly set up in stator module 7, its characterized in that: the rotor assembly 8 comprises a rotating shaft extending out of the second bearing 9, the rotating shaft is fixedly connected with a brake rotor 13, a plurality of rotor magnetic steels 19 are uniformly distributed on the periphery of the brake rotor 13, a cover 11 is arranged on the shell 22 and positioned on the outer side of the second bearing 9, a brake stator 12 is fixedly connected with the cover 11, and a plurality of stator magnetic steels 20 which are matched with the rotor magnetic steels 19 in a magnetic attraction mode are uniformly distributed on the inner wall of the brake stator 12; rotor magnet steel 19 is installed through the magnet steel caulking groove at brake rotor 13, stator magnet steel 20 is installed to the magnet steel caulking groove of brake stator 12, and motor rotor subassembly 8 relies on the magnetic adsorption power speed reduction brake between rotor magnet steel 19 and the stator magnet steel 20, adopts magnet steel magnetic adsorption power to realize that the electron rotor shuts down the braking, and assembly structure is simple, reduces motor installation, use and maintenance cost by a wide margin.
Wherein, the outer wall of the shell 22 is provided with an outgoing line sheath 4, the outgoing line sheath 4 penetrates through the cover cap 11, and an adjusting gasket 2 is clamped and pressed between the first bearing 3 and the front cover 1; the outgoing line sheath 4 can seal the outgoing line of the brushless motor, a motor rotating shaft 21 is arranged in the first bearing 3, the motor rotating shaft 21 is rotatably connected with the front cover 1 through the first bearing 3, a flat key 18 is arranged on the motor rotating shaft 21, a signal magnetic ring 6 is arranged on the outer wall of the motor rotating shaft 21 and positioned on one side of the first bearing 3, a Hall assembly 5 is arranged on one side of the signal magnetic ring 6, the signal magnetic ring 6 is fixedly connected with the motor rotating shaft 21, the Hall assembly 5 is connected with the inner wall of the front cover 1 through a screw, and the signal magnetic ring 6 is made of ferrite; the hall assemblies 5 can alternately change the direction of the incoming current, so that the direction of the magnetic force on each stator assembly 7 is changed, and a staggered adsorption force is formed between each stator assembly 7 and the rotor assembly 8.
A cross-slot pan head screw 16 is arranged on the cover cap 11, a spring washer 17 penetrates through the cross-slot pan head screw 16, and the cover cap 11 is fixedly connected with the shell 22 through the cross-slot pan head screw 16; the elastic pad 17 plays a role in preventing the wire from withdrawing, so that the cover cap 11 can be firmly connected with the shell 22, the wave-shaped pad 10 is arranged between one side of the second bearing 9 and the shell 22, and the rotating shaft 21 of the motor is rotatably connected with the other end of the shell 22 through the second bearing 9; the wave-shaped pad 10 plays a role in supporting and mounting the second bearing 9, the elastic retainer ring 14 is clamped and pressed on one side of the brake rotor 13 on the outer wall of the motor rotating shaft 21, and the brake magnetic steel 15 is fixedly connected to the periphery of the brake stator 12.
The utility model discloses a theory of operation is: in the working process of the brushless motor, after the stator assembly 7 is powered on, the Hall assembly 5 can alternately change the reverse direction of the entering current, so as to change the magnetic force direction on each stator assembly 7, form a staggered adsorption force with the rotor assembly 8, drive the rotor assembly 8 to rotate, further drive the motor rotating shaft 21 to rotate, the motor rotating shaft 21 can be connected with equipment needing power through the flat key 18, and further drive the power equipment to start, through installing the rotor magnetic steel 19 in the magnetic steel caulking groove of the brake rotor 13, installing the stator magnetic steel 20 in the magnetic steel caulking groove of the brake stator 12, the motor rotor assembly 8 decelerates and brakes by means of the magnetic adsorption force between the rotor magnetic steel 19 and the stator magnetic steel 20, the electronic rotor is stopped and braked by adopting the magnetic steel magnetic adsorption force, the assembly structure is simple, the motor installation is greatly reduced, Usage and maintenance costs.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides a brushless DC motor, includes protecgulum (1) and casing (22), protecgulum (1) with casing (22) shaping respectively has the bearing frame, the bearing frame of protecgulum (1) is equipped with first bearing (3), the bearing frame of casing (22) is equipped with second bearing (9), protecgulum (1) with casing (22) are connected, be equipped with stator module (7) and rotor subassembly (8) in casing (22), rotor subassembly (8) both ends are held respectively in first bearing (3) with second bearing (9) to make rotor subassembly (8) rotate and set up in stator module (7), its characterized in that: rotor subassembly (8) including stretch out in the pivot of second bearing (9), this pivot fixedly connected with brake rotor (13), brake rotor (13) periphery equipartition has a plurality of rotor magnet steel (19), casing (22) are located the outside of second bearing (9) is equipped with shroud (11), shroud (11) fixedly connected with brake stator (12), brake stator (12) inner wall equipartition have with a plurality of rotor magnet steel (19) magnetism inhale a plurality of stator magnet steel (20) of complex.
2. A dc brushless motor according to claim 1, wherein: an outgoing line sheath (4) is arranged on the outer wall of the shell (22), the outgoing line sheath (4) penetrates through the cover cap (11), and an adjusting gasket (2) is clamped and pressed between the first bearing (3) and the front cover (1).
3. A dc brushless motor according to claim 1, wherein: the motor is characterized in that a motor rotating shaft (21) is arranged inside the first bearing (3), the motor rotating shaft (21) is connected with the front cover (1) in a rotating mode through the first bearing (3), and a flat key (18) is arranged on the motor rotating shaft (21).
4. A dc brushless motor according to claim 3, wherein: the motor is characterized in that a signal magnetic ring (6) is arranged on one side of the first bearing (3) on the outer wall of the motor rotating shaft (21), a Hall assembly (5) is arranged on one side of the signal magnetic ring (6), the signal magnetic ring (6) is fixedly connected with the motor rotating shaft (21), the Hall assembly (5) is connected with the inner wall of the front cover (1) through screws, and the signal magnetic ring (6) is made of ferrite.
5. A dc brushless motor according to claim 1, wherein: the improved structure is characterized in that a cross-slot pan head screw (16) is arranged on the cover cap (11), an elastic cushion (17) penetrates through the cross-slot pan head screw (16), and the cover cap (11) is fixedly connected with the shell (22) through the cross-slot pan head screw (16).
6. A dc brushless motor according to claim 3, wherein: a wave-shaped pad (10) is arranged between one side of the second bearing (9) and the shell (22), and the rotating shaft (21) of the motor is connected with the other end of the shell (22) in a rotating mode through the second bearing (9).
7. A dc brushless motor according to claim 3, wherein: the brake rotor is characterized in that the outer wall of the motor rotating shaft (21) is provided with an elastic retainer ring (14) clamped and pressed on one side of the brake rotor (13), and the periphery of the brake stator (12) is fixedly connected with brake magnetic steel (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120143091.XU CN214205296U (en) | 2021-01-20 | 2021-01-20 | Direct current brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120143091.XU CN214205296U (en) | 2021-01-20 | 2021-01-20 | Direct current brushless motor |
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| Publication Number | Publication Date |
|---|---|
| CN214205296U true CN214205296U (en) | 2021-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120143091.XU Active CN214205296U (en) | 2021-01-20 | 2021-01-20 | Direct current brushless motor |
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| CN (1) | CN214205296U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114172338A (en) * | 2021-11-10 | 2022-03-11 | 西安航天动力测控技术研究所 | Large magnetostatic torque motor |
-
2021
- 2021-01-20 CN CN202120143091.XU patent/CN214205296U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114172338A (en) * | 2021-11-10 | 2022-03-11 | 西安航天动力测控技术研究所 | Large magnetostatic torque motor |
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