CN114123601A - High-reliability speed-reducing coreless motor - Google Patents
High-reliability speed-reducing coreless motor Download PDFInfo
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- CN114123601A CN114123601A CN202111210373.8A CN202111210373A CN114123601A CN 114123601 A CN114123601 A CN 114123601A CN 202111210373 A CN202111210373 A CN 202111210373A CN 114123601 A CN114123601 A CN 114123601A
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- cup body
- rotating shaft
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- 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
- H02K5/08—Insulating casings
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- 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
- H02K1/17—Stator cores with permanent magnets
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- 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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/26—Rotor cores with slots for windings
- H02K1/265—Shape, form or location of the slots
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
- H02K13/006—Structural associations of commutators
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- 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
- H02K5/14—Means for supporting or protecting brushes or brush holders
- H02K5/143—Means for supporting or protecting brushes or brush holders for cooperation with commutators
- H02K5/145—Fixedly supported brushes or brush holders, e.g. leaf or leaf-mounted brushes
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- 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
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Dc Machiner (AREA)
Abstract
The invention provides a high-reliability speed-reducing coreless motor, which mainly solves the problem of low reliability of the conventional coreless motor. The speed-reducing coreless motor is characterized in that: a motor gear of the speed reducer is fixedly connected with the rotating shaft through laser welding; an insulating layer is arranged on the inner wall of the rear end of the shell and used for preventing the carbon powder from directly contacting with the inner wall of the shell; impregnating the armature cup body with insulating paint, and arranging an insulating glue layer on the outer side of the armature cup body; the rotor assembly also comprises an insulating rubber sleeve which is arranged at the rear end of the armature cup body and sleeved on the rotating shaft, the front end of the commutator is embedded in the insulating rubber sleeve, the rear end of the commutator is matched with the carbon brush, and a conductive cable which is respectively and electrically connected with the commutator and the armature cup body is arranged in the insulating rubber sleeve; the rear end cover and the shell form a sealed cavity, the insulating mounting plate is arranged in the sealed cavity, the front end of the rotating shaft penetrates through the stator assembly and the speed reducer and extends out of the speed reducer, and the rear end penetrates through the first support, the second support and the insulating rubber sleeve and is arranged in the sealed cavity.
Description
Technical Field
The invention belongs to the field of speed reduction coreless direct-current servo motors, and particularly relates to a high-reliability speed reduction coreless motor.
Background
The coreless motor is a miniature direct-current permanent magnet servo motor which adopts a permanent magnet to provide a magnetic field and is powered by a direct-current power supply, and the speed reduction coreless direct-current servo motor has the characteristics of low rotating speed, large torque and the like, so that the coreless motor is applied to a plurality of fields. The hollow cup type rotor wound by the enameled wires is adopted in the hollow cup type direct current servo motor, and the rotor is free of a tooth-space structure iron core formed by overlapping silicon steel sheets, so that tooth-space torque and eddy current loss are eliminated, and weight and rotational inertia of the rotor are reduced. Therefore, the torque pulsation is small, the operation is stable, the starting torque is small, and the efficiency is high. However, in the existing speed reduction coreless motor, the carbon powder is easy to accumulate at the metal part due to the cross design of the carbon brush assembly and the motor rotating shaft assembly, so that the insulation reliability of the motor is reduced, and the requirement of high reliability cannot be met.
Disclosure of Invention
The invention aims to solve the problem of low reliability of the existing coreless motor and provides a high-reliability speed-reducing coreless motor.
In order to solve the problems, the technical scheme provided by the invention is as follows:
a high-reliability speed-reducing coreless motor comprises a speed reducer and a coreless motor; the coreless motor comprises a stator assembly, a rotor assembly and a rear end cover assembly; the stator assembly comprises a shell, a magnetic steel ring and a front end cover, wherein the front end of the front end cover is connected with the shell, the rear end of the front end cover is arranged in a cavity of the shell, and the magnetic steel ring is positioned in the shell and arranged at the rear end of the front end cover; the rotor assembly comprises an armature cup body, a rotating shaft, a first bracket, a second bracket and a commutator, wherein the rotating shaft, the first bracket, the second bracket and the commutator are arranged in the armature cup body; the armature cup body is arranged between the shell and the magnetic steel ring, and the first support, the second support and the commutator are sequentially sleeved on the rotating shaft; the rear end cover assembly comprises a carbon brush, a rear end cover and an insulating mounting plate, and the carbon brush and the insulating mounting plate are arranged on the inner side of the rear end cover; it is characterized in that: the motor gear of the speed reducer is fixedly connected with the rotating shaft through laser welding; an insulating layer is arranged on the inner wall of the rear end of the shell and is positioned between the shell and the carbon brush and used for preventing the carbon powder from directly contacting the inner wall of the shell; impregnating the armature cup body with insulating paint, and arranging an insulating glue layer on the outer side of the armature cup body; the rotor assembly further comprises an insulating rubber sleeve which is arranged at the rear end of the armature cup body and sleeved on the rotating shaft, the front end of the commutator is embedded in the insulating rubber sleeve, the rear end of the commutator is matched with the carbon brush, a conductive cable which is respectively and electrically connected with the commutator and the armature cup body is arranged in the insulating rubber sleeve, and the insulating rubber sleeve is used for insulating and sealing the welding surface of the armature cup body and the commutator; the rear end cover is arranged at the rear end of the casing and forms a sealed cavity with the casing, the insulating mounting plate is arranged in the sealed cavity, cable holes are radially formed in the insulating mounting plate, the front end of the rotating shaft penetrates through the stator assembly and the speed reducer and extends out of the speed reducer, and the rear end penetrates through the first support, the second support and the insulating rubber sleeve and is arranged in the sealed cavity.
Furthermore, the rotating shaft comprises a first connecting section, a second connecting section and a third connecting section which are connected in sequence; the speed reducer and the front end cover are arranged on the first connecting section through bearings, the first support is arranged on the second connecting section, and the second support and the insulating glue sleeve are arranged on the third connecting section.
Furthermore, a Y-shaped glue groove is formed in the rear end face of the insulating mounting plate, a guide post of the carbon brush penetrates through the insulating mounting plate and is electrically connected with a lead-out wire arranged in the Y-shaped glue groove, insulating glue is coated in the Y-shaped glue groove, and surface type insulating, sealing and sealing are conducted on the welding surface where the lead-out wire and the guide post are located.
Furthermore, the rear end face of the rotating shaft is flush with the rear end face of the insulating rubber sleeve.
Further, the gear ring of the speed reducer is welded with the front end cover of the stator assembly in a laser mode.
Compared with the prior art, the invention has the beneficial effects that:
1. the existing speed reduction coreless motor is easy to cause the conduction of the outgoing line and the shell to cause insulation reduction after working for a long time. The speed reduction coreless motor has the advantages that the insulating layer made of the non-metal material is additionally arranged on the inner wall, close to the carbon brush, of the shell, so that the direct contact between the carbon powder and the inner wall of the metal is avoided, and the insulativity of the motor is greatly improved.
2. The insulation of the existing speed reducing coreless motor is obviously reduced in a high-temperature and high-humidity environment. The armature cup body of the speed-reducing coreless motor improves the insulation property of a winding and the strength of the cup body in a manner of dipping paint and adding rolling glue; the surface where the armature cup body and the commutator are welded is fixedly sealed by the insulating rubber sleeve, so that the insulation reliability of the motor in a high-temperature and high-humidity environment is improved.
3. The invention carries out surface type insulating glue sealing and sealing on the welding surface where the leading-out wire of the rear end cover assembly and the guide post are positioned, thereby forming a symmetrical and complete sealing body structure, not only improving the insulation reliability of the motor in a high-temperature and high-humidity environment, but also improving the high overload environment adaptability of the motor.
4. Carbon powder generated by abrasion of a carbon brush of the existing speed reduction coreless motor is easy to accumulate on a metal rotating shaft, so that insulation between a motor outgoing line and the metal rotating shaft is reduced. According to the speed reducing coreless motor, the rotating shaft only penetrates through the stator and does not penetrate through the carbon brush assembly and the rear end cover, carbon powder is not easy to accumulate on the rear end cover of the motor and the metal part of the rotating shaft, and the insulation reliability is improved; meanwhile, only one step of the rotating shaft is provided, the step is shallow, large stress concentration is avoided, and the impact resistance is improved.
5. The reducer of the speed reducing coreless motor is fixedly connected with the motor in a laser welding mode, so that the mechanical strength can be greatly improved.
Drawings
FIG. 1 is a schematic structural diagram of a high-reliability speed-reducing coreless motor of the present invention;
FIG. 2 is a schematic view of the stator assembly structure of the high reliability deceleration coreless motor of the present invention;
FIG. 3 is a schematic structural view of a rotor assembly of the high reliability deceleration coreless motor of the present invention;
FIG. 4 is a schematic structural view of a rear end cap assembly of the high reliability deceleration coreless motor of the present invention;
FIG. 5 is a schematic view of the lead-out wire and the welding point sealing of the guide post of the high-reliability speed-reducing coreless motor of the invention.
Reference numerals: 1-speed reducer, 2-stator assembly, 3-rotor assembly, 4-rear end cover assembly, 5-retainer ring, 11-motor gear, 12-gear ring, 21-machine shell, 22-magnetic steel ring, 23-front end cover, 24-insulating layer, 31-armature cup, 32-rotating shaft, 33-first support, 34-second support, 35-commutator, 36-insulating rubber sleeve, 37-insulating rubber layer, 41-carbon brush, 42-rear end cover, 43-insulating mounting plate, 51-leading-out wire and 52-Y-shaped rubber groove.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 5, the speed-reducing coreless motor of the present invention includes a speed reducer 1 and a coreless motor connected to each other; the speed reducer 1 is a planetary speed reducer, is coaxially mounted with the coreless motor, and mainly comprises an output shaft, a gear ring 12, an end cover, a planetary gear, a central wheel, a motor gear 11 and the like; the coreless motor is a coreless permanent magnet direct current servo motor and mainly comprises a stator assembly 2, a rotor assembly 3 and a rear end cover assembly 4. The present invention mainly improves the structure of the existing coreless motor to improve the reliability thereof, and the structure of the existing coreless motor will be described briefly below.
In the existing coreless motor, a magnetic steel ring 22, a shell 21 and a bearing form a stator assembly 2 to generate a permanent magnetic field, the front end of a front end cover 23 is connected with the shell 21, the bearing is arranged on the inner side of the front end cover, the rear end of the front end cover is arranged in a cavity of the shell 21, and the magnetic steel ring 22 is positioned in the shell 21 and is arranged at the rear end of the front end cover 23; the rotor assembly 3 is connected with the stator assembly 2 through a bearing, and the interaction of the permanent magnetic field and the armature magnetic field ensures the continuous rotation of the motor to generate corresponding rotating speed and torque. The rotor assembly 3 comprises an armature cup 31, a rotating shaft 32 arranged in the armature cup 31, a first bracket 33, a second bracket 34 and a commutator 35; the first support 33 is a steel frame, the second support 34 is a non-metal support, the armature cup 31 is arranged between the casing 21 and the magnetic steel ring 22, the first support 33, the second support 34 and the commutator 35 are sleeved on the rotating shaft 32 in sequence, the rotating shaft 32 passes through a bearing in the stator assembly 2 to generate rotary motion, and the bearing realizes axial limit through the retainer ring 5; the armature cup 31 forms a rotating shaft assembly with the motor shaft through a non-metal bracket, a steel frame and a commutator 35 to form a rotor assembly, and an armature magnetic field is generated. The rear end cover assembly 4 is used as an important part for reversing the coreless motor and mainly comprises a carbon brush 41, a brush holder, a spring, an insulating mounting plate 43 made of a non-metal material, an outgoing line 51 and a rear end cover 42, wherein the carbon brush 41 and the insulating mounting plate 43 are arranged on the inner side of the rear end cover 42, and the metal rear end cover 42 plays a role in mechanical protection on the carbon brush 41 assembly.
The coreless motor is improved on the existing structure, the connection mode of the speed reducer 1 and the coreless motor and the local structure of the coreless motor are mainly changed, so that the reliability of the coreless motor is greatly improved, and the coreless motor has the following specific improvement points:
a speed reducer 1 in the existing speed reducing coreless motor is connected with the coreless motor through screws, pins and other adhesive adding modes, and the mode has the disadvantages of complex process and low reliability. The invention fixedly connects the motor gear 11 of the speed reducer 1 with the rotating shaft 32 through laser welding and is used as the input end of the speed reducer 1. At the same time, the ring gear 12 in the reduction gear 1 is laser welded to the front end cover 23 of the stator. The reducer 1 is connected and assembled with the motor through laser welding, so that the motor is compact in structure and space-saving, and the mechanical strength can be improved by the connection mode of laser welding, so that the reliability of the reducer 1 and the coreless motor is improved.
In the structural design of the stator of the existing speed-reducing coreless motor, metal is exposed at the contact position of the shell 21 and the carbon brush 41, no insulating material is used for separation, carbon powder is easily accumulated on the inner wall of the metal, and the leading-out wire is easily conducted with the shell after the motor works for a long time to cause insulation reduction. The shell 21 of the speed reducing coreless motor is additionally provided with the insulating layer 24 made of the non-metallic material on the inner wall close to the carbon brush 41, so that the direct contact between carbon powder and the inner wall of metal is avoided, and the insulation of the motor is greatly improved. In the embodiment of the invention, the insulating layer 24 is disposed on the inner wall of the rear end of the casing 21, and the insulating layer 24 is located between the casing 21 and the carbon brush 41 to insulate the casing 21 and the carbon brush, so as to prevent the carbon brush from directly contacting the inner wall of the casing 21.
The insulation of the existing speed reducing coreless motor is obviously reduced in a high-temperature and high-humidity environment. The rear end of the armature cup body 31 of the speed reducing coreless cup motor is provided with the insulating rubber sleeve 36, the front end of the commutator 35 is embedded in the insulating rubber sleeve 36, the rear end of the commutator 35 is matched with the carbon brush 41, the insulating rubber sleeve 36 is sleeved on the rotating shaft 32, the inside of the insulating rubber sleeve 36 is provided with the conductive cables which are respectively electrically connected with the commutator 35 and the armature cup body 31, the insulating rubber sleeve 36 is used for insulating and sealing the welding surface of the armature cup body 31 and the commutator 35, and the rear end face of the rotating shaft 32 can be arranged in parallel and level with the rear end face of the insulating rubber sleeve 36. Meanwhile, the armature cup 31 wound by the enameled copper wire is impregnated with the insulating paint, so that the insulation of the armature cup 31 is improved. The protection of the insulating glue layer 37 is carried out on the outer side of the armature cup body 31, so that the insulation of the winding is further enhanced, the mechanical strength of the armature cup body 31 is increased, the high-temperature and high-humidity resistant environment is improved, and the requirement of high overload is also improved.
In the existing speed reduction coreless motor, an outgoing line is welded with a guide pillar and then led out from a groove of a mounting plate, a welding point is subjected to point type insulation treatment by coating insulating glue, and the outgoing line is subjected to secondary insulation protection through a sheath made of a non-metal material. As shown in fig. 5, the rear end surface of the insulating mounting plate 43 is provided with a Y-shaped glue groove 52, the guide post of the carbon brush 41 penetrates through the insulating mounting plate 43 and is electrically connected with the lead wire arranged in the Y-shaped glue groove 52, and the inside of the Y-shaped glue groove is coated with insulating glue to perform surface type insulating, sealing and sealing on the welding surface of the lead wire 51 and the guide post. When the armature works, an electric signal is led in from the outside through the outgoing line, the outgoing line 51 transmits the electric signal to the commutator 35 through the guide pillar and the carbon brush 41, and the commutator 35 transmits the electric signal to the armature cup 31 through the conductive cable, so that the armature magnetic field is realized.
In the structural design of the rotor of the existing speed-reducing coreless motor, the steps of the rotating shaft 32 are more and deeper, which causes stress concentration and poor impact resistance, and meanwhile, the rotating shaft 32 penetrates through the rear end cover 42 and the carbon brush 41 assembly to extend to the outer side of the rear end cover 42, and carbon powder generated by abrasion of the carbon brush 41 is easily accumulated on the metal rotating shaft 32, which causes insulation reduction between a motor outgoing line and the metal rotating shaft 32. Based on this, the invention improves the rear end cover 42 and the insulating mounting plate 43, and sets them as a closed cover plate, the rear end cover 42 is set at the rear end of the casing 21, and forms a sealed cavity with the casing 21, the insulating mounting plate 43 is set in the sealed cavity, the front end of the rotating shaft 32 passes through the stator module 2 and the reducer 1, and extends out of the reducer 1, and the rear end passes through the first bracket 33, the second bracket 34 and the insulating rubber sleeve 36 and is set in the sealed cavity. The rear end cap 42 provides a mechanical protection for the carbon brush 41 assembly. The arrangement ensures that the rotating shaft 32 of the speed reducing coreless motor only passes through the stator and does not pass through the carbon brush 41 assembly and the rear end cover 42, carbon powder is not easy to accumulate on the rear end cover 42 of the motor and the metal part of the rotating shaft 32, and the insulation reliability is improved. Meanwhile, the rotating shaft 32 is provided with a first connecting section, a second connecting section and a third connecting section which are connected in sequence; the speed reducer 1 and the front end cover 23 are arranged on the first connecting section through bearings, the first support 33 is arranged on the second connecting section, and the second support 34 and the insulating rubber sleeve 36 are arranged on the third connecting section. The rotating shaft 32 has only one step and the step is shallow, so that the stress concentration is not large, and the impact resistance is improved.
Claims (5)
1. A high-reliability speed-reducing coreless motor comprises a speed reducer (1) and a coreless motor; the coreless motor comprises a stator assembly (2), a rotor assembly (3) and a rear end cover assembly (4);
the stator assembly (2) comprises a machine shell (21), a magnetic steel ring (22) and a front end cover (23), wherein the front end of the front end cover (23) is connected with the machine shell (21), the rear end of the front end cover is arranged in a cavity of the machine shell (21), and the magnetic steel ring (22) is positioned in the machine shell (21) and is arranged at the rear end of the front end cover (23);
the rotor assembly (3) comprises an armature cup body (31), a rotating shaft (32) arranged in the armature cup body (31), a first bracket (33), a second bracket (34) and a commutator (35); the armature cup body (31) is arranged between the shell (21) and the magnetic steel ring (22), and the first support (33), the second support (34) and the commutator (35) are sequentially sleeved on the rotating shaft (32);
the rear end cover assembly (4) comprises a carbon brush (41), a rear end cover (42) and an insulating mounting plate (43), wherein the carbon brush (41) and the insulating mounting plate (43) are arranged on the inner side of the rear end cover (42);
the method is characterized in that:
the motor gear (11) of the speed reducer (1) is fixedly connected with the rotating shaft (32) through laser welding;
an insulating layer (24) is arranged on the inner wall of the rear end of the machine shell (21), and the insulating layer (24) is located between the machine shell (21) and the carbon brush (41) and used for preventing the carbon powder from being in direct contact with the inner wall of the machine shell (21);
the armature cup body (31) is subjected to insulating varnish impregnation treatment, and an insulating glue layer (37) is arranged on the outer side of the armature cup body (31); the rotor assembly (3) further comprises an insulating rubber sleeve (36) which is arranged at the rear end of the armature cup body (31) and sleeved on the rotating shaft (32), the front end of the commutator (35) is embedded in the insulating rubber sleeve (36), the rear end of the commutator (35) is matched with the carbon brush (41), a conductive cable which is electrically connected with the commutator (35) and the armature cup body (31) respectively is arranged in the insulating rubber sleeve (36), and the insulating rubber sleeve (36) is used for insulating and sealing the welding surface of the armature cup body (31) and the commutator (35);
rear end housing (42) set up the rear end in casing (21), form seal chamber with casing (21), insulating mounting panel (43) set up in seal chamber, stator module (2) and reduction gear (1) are passed to the front end of pivot (32), extend to outside reduction gear (1), and the rear end passes first support (33), second support (34) and insulating gum cover (36) and sets up in seal chamber.
2. The high reliability deceleration coreless motor of claim 1, wherein: the rotating shaft (32) comprises a first connecting section, a second connecting section and a third connecting section which are connected in sequence; the speed reducer (1) and the front end cover (23) are arranged on the first connecting section through bearings, the first support (33) is arranged on the second connecting section, and the second support (34) and the insulating rubber sleeve (36) are arranged on the third connecting section.
3. The high reliability deceleration coreless motor of claim 1, wherein: the rear end face of the insulating mounting plate (43) is provided with a Y-shaped glue groove (52), a guide post of the carbon brush (41) penetrates through the insulating mounting plate (43) and is electrically connected with an outgoing line (51) arranged in the Y-shaped glue groove (52), insulating glue is coated in the Y-shaped glue groove (52), and surface type insulating, sealing and fixing are carried out on the welding surface where the outgoing line (51) and the guide post are located.
4. The high reliability deceleration coreless motor of claim 1, wherein: the rear end face of the rotating shaft (32) is flush with the rear end face of the insulating rubber sleeve (36).
5. The high reliability deceleration coreless motor of claim 1, wherein: and the gear ring (12) of the speed reducer (1) is welded with the front end cover (23) of the stator assembly (2) in a laser mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111210373.8A CN114123601B (en) | 2021-10-18 | 2021-10-18 | High-reliability deceleration hollow cup motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111210373.8A CN114123601B (en) | 2021-10-18 | 2021-10-18 | High-reliability deceleration hollow cup motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114123601A true CN114123601A (en) | 2022-03-01 |
| CN114123601B CN114123601B (en) | 2023-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111210373.8A Active CN114123601B (en) | 2021-10-18 | 2021-10-18 | High-reliability deceleration hollow cup motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN114123601B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4769566A (en) * | 1986-04-15 | 1988-09-06 | Mabuchi Motor Co. Ltd. | Shallow cup-shaped miniature motor |
| CN2764038Y (en) * | 2005-01-25 | 2006-03-08 | 锦州韩华电装有限公司 | Armature with insulation fixing ring |
| CN2857326Y (en) * | 2005-12-30 | 2007-01-10 | 深圳市仓兴达科技有限公司 | D.C. hollow cup microdynamo |
| CN202524267U (en) * | 2012-02-13 | 2012-11-07 | 捷和电机（深圳）有限公司 | Direct current motor |
| CN205509760U (en) * | 2016-04-08 | 2016-08-24 | 温州的可电器有限公司 | Reducing motor |
| CN206180768U (en) * | 2016-09-09 | 2017-05-17 | 精进电动科技股份有限公司 | Motor and retarder connection's input shaft structure |
-
2021
- 2021-10-18 CN CN202111210373.8A patent/CN114123601B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4769566A (en) * | 1986-04-15 | 1988-09-06 | Mabuchi Motor Co. Ltd. | Shallow cup-shaped miniature motor |
| CN2764038Y (en) * | 2005-01-25 | 2006-03-08 | 锦州韩华电装有限公司 | Armature with insulation fixing ring |
| CN2857326Y (en) * | 2005-12-30 | 2007-01-10 | 深圳市仓兴达科技有限公司 | D.C. hollow cup microdynamo |
| CN202524267U (en) * | 2012-02-13 | 2012-11-07 | 捷和电机（深圳）有限公司 | Direct current motor |
| CN205509760U (en) * | 2016-04-08 | 2016-08-24 | 温州的可电器有限公司 | Reducing motor |
| CN206180768U (en) * | 2016-09-09 | 2017-05-17 | 精进电动科技股份有限公司 | Motor and retarder connection's input shaft structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114123601B (en) | 2023-08-04 |
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