CN114499029B - Permanent magnet motor with water cooling and angle adjusting device - Google Patents
Permanent magnet motor with water cooling and angle adjusting device Download PDFInfo
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- CN114499029B CN114499029B CN202111562415.4A CN202111562415A CN114499029B CN 114499029 B CN114499029 B CN 114499029B CN 202111562415 A CN202111562415 A CN 202111562415A CN 114499029 B CN114499029 B CN 114499029B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/26—Means for adjusting casings relative to their supports
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
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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
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
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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
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
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- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention relates to the technical field of heat dissipation and shock absorption of permanent magnet motors, in particular to a permanent magnet motor with a water cooling and angle adjusting device. According to the permanent magnet motor with the water cooling and angle adjusting device, the annular assembly plate controlled by the electric control hydraulic stay bar is arranged at the lower end of the outer housing, the installation angle of the whole permanent magnet motor can be freely adjusted according to actual needs through the electric control hydraulic stay bar, and the installation mode of the permanent magnet motor is more diversified and the adjustment is simple to operate by matching with the annular assembly ring; by adopting external liquid injection, the connection mode is simple and convenient, and the heat dissipation performance is greatly improved; the outside heat dissipation copper pipe of serpentine structure adopts split type structural design, pegs graft through the side direction stand pipe and come the assembly fixed at horizontal heat conduction copper pipe both ends, makes things convenient for the clearance maintenance work in later stage greatly, reduces later stage use cost.
Description
Technical Field
The invention relates to the technical field of heat dissipation and shock absorption of permanent magnet motors, in particular to a permanent magnet motor with a water cooling and angle adjusting device.
Background
The permanent magnet motor provides excitation by the permanent magnet, so that the motor has a simpler structure, the processing and assembly cost is reduced, a collecting ring and an electric brush which are easy to cause problems are omitted, and the running reliability of the motor is improved; and because excitation current is not needed, excitation loss is avoided, and the efficiency and the power density of the motor are improved.
The permanent magnet motor is composed of a stator, a rotor, an end cover and the like. The stator is basically the same as a common induction motor, and a lamination structure is adopted to reduce iron loss during the operation of the motor. The rotor can be made into solid or laminated by lamination. The armature winding can adopt a concentrated whole-pitch winding, and can also adopt a distributed short-pitch winding and an unconventional winding.
Permanent-magnet machine is when high-speed operation, through the frictional force that energy conversion and rotation produced, can produce a large amount of heat energy, if unable quick heat dissipation, can lead to permanent-magnet machine's inside magnetism to disappear, thereby influence permanent-magnet machine's work efficiency greatly, when high-speed operation, permanent-magnet machine self can produce the vibration, if adopt traditional rigid connection mode, directly give the assembly end with vibration conduction, can lead to the assembly end not hard up for a long time, permanent-magnet machine on the market can't be automatic according to radiating mode of actual running state automatically regulated and shock attenuation performance at present, lead to permanent-magnet machine's security and durability to discount greatly, and permanent-magnet machine can't freely change its angle as required after the installation finishes, lead to its application scope relatively limited.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the problems existing in the background art, an improved permanent magnet motor with a water cooling and angle adjusting device is provided, and the problems that the safety and durability of the permanent magnet motor are greatly reduced due to the fact that the heat dissipation mode and the shock absorption performance of the permanent magnet motor on the market cannot be automatically adjusted according to the actual operation state, and the application range of the permanent magnet motor is limited due to the fact that the angle of the permanent magnet motor cannot be freely changed according to needs after the permanent magnet motor is installed are solved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a permanent-magnet machine with water-cooling and angle regulation apparatus, includes the permanent-magnet machine body, fixes outside housing and automatically controlled hydraulic strut in the permanent-magnet machine body outside, outside housing lower surface left side the first movable assembly support of bellied body structure has left, outside housing lower surface right side the bellied body structure second activity assembly support of right has, automatically controlled hydraulic strut run through second activity assembly support and outside housing swing joint through both sides activity pivot, outside housing lower extreme set up the annular of built-in annular assembly plate and accomodate the recess, annular assembly plate through first movable assembly support and outside housing swing joint, outside housing lateral surface a plurality of body structure outside fin that are the ring array mode and arrange have, outside fin inside be located fixed connection and have the outside heat dissipation copper pipe of snakelike structure, first movable assembly support both sides outer wall on have the body structure side direction raceway that is linked together with outside heat dissipation copper pipe, the housing through first movable assembly support and annular assembly plate swing joint.
The left side of the annular assembling plate is provided with an integral structure lateral assembling frame protruding upwards leftwards, lateral assembling through holes matched with the lateral water conveying pipe are symmetrically formed in the lateral assembling frame, and the lateral assembling frame is sleeved on the outer side of the lateral water conveying pipe through the lateral assembling through holes and movably connected with the first movable assembling support.
Annular assembly plate right side have the bellied integrative structure side direction installing frame of going up right, side direction installing frame both sides inner wall on the symmetry seted up the inclined side direction regulation hole, automatically controlled hydraulic strut top telescopic link coaxial fixation has the top control head that is used for connecting the side direction installing frame, the top control head insert inclined side direction regulation downthehole portion and side direction installing frame activity assembly through the spacing axle of the integrative structure in both sides.
The lower end of the top control head is provided with a control ball head with an integrated structure, the outer side of the control ball head is sleeved with an arc extrusion housing with a damping spring at the bottom, and the bottom end of the damping spring is fixedly connected with the inside of the lateral mounting frame.
The external heat dissipation copper pipe with the serpentine structure comprises an integral-structure transverse heat conduction copper pipe fixed with the connecting end of the external heat dissipation fin and n-shaped structure lateral guide pipes fixed on two sides of the transverse heat conduction copper pipe in an inserting mode.
And two internal water supply flow channels which are respectively communicated with the lateral water pipe and the water inlet and the water outlet of the external heat dissipation copper pipe with the serpentine structure are formed in the first movable assembling support.
The annular assembling plate is internally provided with a plurality of strip bolt fixing holes arranged in an annular array mode at the outer edge position.
And annular fixing clamping grooves with built-in rubber shock absorption pads are formed in the upper surface and the lower surface of the annular assembling plate in a staggered manner.
The arc-shaped surface of the outer side of the control ball head is provided with an arc-shaped guide groove, and the arc-shaped surface of the inner side of the arc extrusion housing is provided with an integrated structure limiting plate protruding towards the arc-shaped guide groove.
The outer side surface of the movable rotating shaft, the outer side surface of the lateral water delivery pipe and the outer side surface of the limiting shaft are all provided with an integrated structure limiting disc for improving external limiting capacity.
The invention has the beneficial effects that:
(1) According to the permanent magnet motor with the water cooling and angle adjusting device, the annular assembling plate controlled by the electric control hydraulic support rod is arranged at the lower end of the outer housing, the installation angle of the whole permanent magnet motor can be freely adjusted according to actual needs through the electric control hydraulic support rod, and the installation mode of the permanent magnet motor is more diversified and the adjustment is simple to operate by matching with the annular assembling ring;
(2) The external cooling fins with the built-in snake-shaped structure external cooling copper pipes are fixed on the outer side of the external housing, cooling liquid is conveyed into the external cooling copper pipes through the lateral water conveying pipes, the external housing and the annular assembling plate can be conveniently and movably assembled, external liquid injection is facilitated, the connection mode is simple and convenient, and the cooling performance is greatly improved;
(3) The external heat dissipation copper pipe with the serpentine structure adopts a split structure design, and is assembled and fixed at two ends of the transverse heat conduction copper pipe through the insertion of the lateral guide pipes, so that the cleaning and maintenance work in the later period is greatly facilitated, and the use cost in the later period is reduced;
(4) The top control head is movably assembled through the inclined lateral adjusting holes in the inner walls of the two sides of the lateral mounting frame, the control ball head is elastically supported through the arc-shaped extrusion housing with the damping springs at the bottom, the supporting performance of the permanent magnet motor can be guaranteed, the damping performance can be improved, and the safety and the stability of the permanent magnet motor can be improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an internal cross-sectional view of the bottom connection end of the present invention.
Fig. 3 is a top view of the annular mounting plate of the present invention.
Fig. 4 is a schematic view of the angle-adjusted structure of the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Fig. 1, fig. 2 and fig. 3 show a permanent magnet motor with water-cooling and angle-adjustable device, including permanent magnet motor body 1, fix outside housing 2 and automatically controlled hydraulic strut 3 in the permanent magnet motor body 1 outside, outside housing 2 lower surface left side has the first movable assembly support 4 of bellied integrative structure left, outside housing 2 lower surface right side has bellied integrative structure second movable assembly support 5 right, automatically controlled hydraulic strut 3 runs through second movable assembly support 5 and outside housing 2 swing joint through both sides activity pivot, outside housing 2 lower extreme has seted up annular storage groove 7 of built-in annular assembly plate 6, annular assembly plate 6 is through first movable assembly support 4 and outside housing 2 swing joint, outside housing 2 lateral surface has 16 integrative structure outside fin 8 that are the annular array mode and arrange, outside fin 8 is inside to be located fixed connection and has snakelike structure outside heat dissipation copper pipe on the fixed connection end, have an integrative structure side direction raceway 9 that is linked together with outside heat dissipation on the copper pipe outer wall of first movable assembly support 4 both sides, outside housing 2 is through first movable assembly support 4 and annular assembly plate 6 swing joint.
As shown in fig. 4, the permanent magnet motor body 1 and the electrically controlled hydraulic support rod 3 are both connected to supply power by an external power supply and are controlled to be opened and closed by an external switch, and the telescopic rod at the lower end of the electrically controlled hydraulic support rod 3 extends out, so that the permanent magnet motor body 1 is turned over counterclockwise to adjust the angle of the permanent magnet motor body 1; the lower end of the electric control hydraulic support rod 3 is retracted, so that the permanent magnet motor body is turned clockwise, and the permanent magnet motor body 1 is adjusted to reset.
Further, for left side movable assembly, annular assembly plate 6 left side has the bellied integrative structure side direction assembly frame 10 of left side upper elevation, and side direction assembly frame 10 inside symmetry is seted up with side direction raceway 9 matched with side direction assembly through-hole, and side direction assembly frame 10 passes through the side direction assembly through-hole cover and is connected with first movable assembly support 4 swing joint in the side direction raceway 9 outside.
Further, for the cooperation assembly, annular assembly plate 6 right side has the bellied integrative structure side direction installing frame 11 of right side-up, and inclined side direction regulation hole 12 has been seted up to the symmetry on the inner wall of side direction installing frame 11 both sides, and 3 top telescopic links of automatically controlled hydraulic strut are coaxially fixed with the top control head 13 that is used for connecting side direction installing frame 11, and top control head 13 inserts inclined side direction regulation hole 12 inside and side direction installing frame 11 movable assembly through the spacing axle 14 of the integrative structure in both sides.
Further, in order to match with the top elastic extrusion damping, the lower end of the top control head 13 is provided with a control ball head 15 with an integrated structure, the outer side of the control ball head 15 is sleeved with an arc extrusion housing 17 with a damping spring 16 at the bottom, and the bottom end of the damping spring 16 is fixedly connected with the inside of the lateral installation frame 11.
Further, for convenient installation and later stage dismantlement and overhaul, the outside heat dissipation copper pipe of snakelike structure includes the horizontal heat conduction copper pipe 18 of an organic whole structure of fixed with 8 tip of outside fin and pegs graft and fix the n style of calligraphy structure side direction stand pipe 19 in horizontal heat conduction copper pipe 18 both sides.
Two ends of the lateral guide tube 19 are inserted into the outer opening of the transverse heat conduction copper tube 18 through an insertion tube externally sleeved with a rubber sealing ring, and an external heat radiation copper tube of a snakelike structure communicated with the external housing 2 is formed.
Further, in order to form a water inlet channel and a water return channel which are communicated with each other in a matching manner, two internal water supply channels 20 which are respectively communicated with the lateral water pipe 9 and the water inlet and the water outlet of the external heat dissipation copper pipe with the serpentine structure are arranged in the first movable assembly support 4.
People can install the automatically controlled water valve of built-in temperature control sensor inside water supply runner 20, and when the inside temperature of inside water supply runner 20 exceeded the critical value of settlement, automatically controlled water valve opened, and coolant liquid just can flow into inside water supply runner 20 from left side direction raceway 9 at this moment, flows back to inside water supply runner 20 through outside heat dissipation copper pipe, discharges from right side direction raceway 9 again.
Furthermore, in order to facilitate the bolt fixing of the annular assembling plate 6 and the mounting surface and to improve the application range, 6 strip bolt fixing holes 21 arranged in an annular array manner are formed in the outer edge of the annular assembling plate 6.
Further, in order to improve the shock absorption performance of the assembly surface, annular fixing clamping grooves with rubber shock absorption pads 22 arranged inside are formed in the upper surface and the lower surface of the annular assembly plate 6 in a staggered mode.
Further, in order to improve the connection stability of the internal extrusion damping mechanism, an arc-shaped guide groove 23 is formed in the arc-shaped surface of the outer side of the control ball head 15, and an integrated structure limiting plate 24 protruding towards the arc-shaped guide groove 23 is arranged on the arc-shaped surface of the inner side of the arc extrusion housing 17.
Further, in order to improve the limiting capability of the movable assembling end, the outer side surface of the movable rotating shaft, the outer side surface of the lateral water conveying pipe 9 and the outer side surface of the limiting shaft 14 are all provided with an integral structure limiting disc 25 for improving the external limiting capability.
The permanent magnet motor with the water cooling and angle adjusting device is characterized in that the lower end of the outer housing 2 is provided with the annular assembling plate 6 controlled by the electric control hydraulic support rod 3, the installation angle of the whole permanent magnet motor can be freely adjusted according to actual needs through the electric control hydraulic support rod 3, and the installation mode of the permanent magnet motor can be more diversified by matching with the annular assembling ring, and the adjustment is simple; an external radiating fin 8 with a built-in snake-shaped structure external radiating copper pipe is fixed on the outer side of the external housing 2, cooling liquid is conveyed into the external radiating copper pipe through a lateral water conveying pipe 9, meanwhile, the external housing 2 and the annular assembling plate 6 are conveniently movably assembled, external liquid injection is facilitated, the connection mode is simple and convenient, and the radiating performance is greatly improved; the external heat dissipation copper pipe with the serpentine structure adopts a split structure design, and is fixedly assembled by inserting the lateral guide pipes 19 at the two ends of the transverse heat conduction copper pipe 18, so that the cleaning and maintenance work in the later period is greatly facilitated, and the use cost in the later period is reduced; the top control head 13 is movably assembled through the inclined lateral adjusting holes 12 on the inner walls of the two sides of the lateral mounting frame 11, the control ball head 15 is elastically supported through the arc-shaped extrusion housing 17 with the damping springs 16 arranged at the bottom, the supporting performance of the permanent magnet motor can be guaranteed, the damping performance is improved, and the safety and the stability of the permanent magnet motor are improved.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. The utility model provides a permanent-magnet machine with water-cooling and angle regulation device, includes permanent-magnet machine body (1), fixes outside housing (2) and automatically controlled hydraulic pressure vaulting pole (3) in the permanent-magnet machine body (1) outside, characterized by: the left side of the lower surface of the outer housing (2) is provided with a first movable assembly support (4) with an integral structure protruding leftwards, the right side of the lower surface of the outer housing (2) is provided with a second movable assembly support (5) with an integral structure protruding rightwards, an electric control hydraulic support rod (3) penetrates through the second movable assembly support (5) through movable rotating shafts on two sides to be movably connected with the outer housing (2), the lower end of the outer housing (2) is provided with an annular containing groove (7) with a built-in annular assembly plate (6), the annular assembly plate (6) is movably connected with the outer housing (2) through the first movable assembly support (4), the outer side surface of the outer housing (2) is provided with a plurality of integral structure outer radiating fins (8) arranged in an annular array mode, the inner part of the outer radiating copper pipe with a snake-shaped structure is positioned on a fixed connection end, the outer walls on two sides of the copper pipe of the first movable assembly support (4) are provided with integral structure lateral water pipes (9) communicated with the outer radiating fins, the outer housing (2) is provided with an integral structure lateral water pipe (9) communicated with the outer side through a first movable assembly support (6) and an integral structure inclined assembly frame (11) connected with the right side, and an adjusting hole (11) is symmetrically arranged on the inner side, the top telescopic rod of the electric control hydraulic support rod (3) is coaxially fixed with a top control head (13) used for being connected with a side mounting frame (11), and the top control head (13) is inserted into an inclined side adjusting hole (12) through a limiting shaft (14) of an integral structure on two sides and movably assembled with the side mounting frame (11).
2. The permanent magnet motor with water cooling and angle adjusting device as claimed in claim 1, wherein: the left side of the annular assembling plate (6) is provided with an integral structure lateral assembling frame (10) protruding upwards leftwards, lateral assembling through holes matched with the lateral water conveying pipe (9) are symmetrically formed in the lateral assembling frame (10), and the lateral assembling frame (10) is sleeved on the outer side of the lateral water conveying pipe (9) through the lateral assembling through holes and is movably connected with the first movable assembling support (4).
3. The permanent magnet motor with water cooling and angle adjusting device as claimed in claim 1, wherein: the lower end of the top control head (13) is provided with a control ball head (15) with an integrated structure, the outer side of the control ball head (15) is sleeved with an arc-shaped extrusion housing (17) with a damping spring (16) at the bottom, and the bottom end of the damping spring (16) is fixedly connected with the inside of the lateral mounting frame (11).
4. The permanent magnet motor with water cooling and angle adjusting device as claimed in claim 1, wherein: the external heat dissipation copper pipe with the serpentine structure comprises an integral-structure transverse heat conduction copper pipe (18) fixed with the connecting end of the external heat dissipation fin (8) and n-shaped structure lateral guide pipes (19) inserted and fixed on two sides of the transverse heat conduction copper pipe (18).
5. The permanent magnet motor with water cooling and angle adjusting device as claimed in claim 1, wherein: and two internal water supply flow channels (20) which are respectively communicated with the lateral water delivery pipe (9) and the water inlet and the water outlet of the external heat dissipation copper pipe with the serpentine structure are formed in the first movable assembly support (4).
6. The permanent magnet motor with water cooling and angle adjusting device as claimed in claim 1, wherein: the annular assembling plate (6) is internally provided with a plurality of strip bolt fixing holes (21) arranged in an annular array manner at the outer edge position.
7. The permanent magnet motor with water cooling and angle adjusting device as claimed in claim 1, wherein: the upper surface and the lower surface of the annular assembling plate (6) are provided with annular fixing clamping grooves with built-in rubber shock absorption pads (22) in a staggered mode.
8. A permanent magnet machine with water cooling and angle adjusting device according to claim 3, characterized in that: control bulb (15) outside arcwall face on seted up arc guide way (23), the inboard arcwall face of arc extrusion housing (17) on have to protruding integrative structure limiting plate (24) of arc guide way (23).
9. The permanent magnet motor with water cooling and angle adjusting device as claimed in claim 1, wherein: the outer side surfaces of the movable rotating shaft, the lateral water conveying pipe (9) and the limiting shaft (14) are all provided with an integral structure limiting disc (25) capable of improving external limiting capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111562415.4A CN114499029B (en) | 2021-12-20 | 2021-12-20 | Permanent magnet motor with water cooling and angle adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111562415.4A CN114499029B (en) | 2021-12-20 | 2021-12-20 | Permanent magnet motor with water cooling and angle adjusting device |
Publications (2)
| Publication Number | Publication Date |
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| CN114499029A CN114499029A (en) | 2022-05-13 |
| CN114499029B true CN114499029B (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111562415.4A Active CN114499029B (en) | 2021-12-20 | 2021-12-20 | Permanent magnet motor with water cooling and angle adjusting device |
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Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203166682U (en) * | 2012-12-25 | 2013-08-28 | 南车株洲电机有限公司 | Angle-adjustable motor inclination fixing device |
| CN206471999U (en) * | 2017-02-22 | 2017-09-05 | 福建亚南电机有限公司 | Stator core embeds the permanent magnet driving motor for vehicle of cooling water pipe overcoat radiating ribs shell |
| CN208123774U (en) * | 2018-03-01 | 2018-11-20 | 深圳市精斯盾机械设备有限公司 | A kind of angle adjustable has the motor of inclination fixed function |
| CN208691092U (en) * | 2018-09-12 | 2019-04-02 | 南京高崎电机有限公司 | A kind of threephase asynchronous machine |
| CN209072167U (en) * | 2018-10-24 | 2019-07-05 | 湖州南浔新龙电机有限公司 | The combined stator structure of efficient operation in washing machine |
| CN209389827U (en) * | 2019-03-11 | 2019-09-13 | 无锡欣涔电机有限公司 | A kind of 1140V directly drives ultralow revolving speed magneto |
| CN210632829U (en) * | 2019-08-22 | 2020-05-29 | 安徽宁国晨光精工股份有限公司 | Split type punching press bottom moulded die |
| CN111130270B (en) * | 2019-12-30 | 2022-03-22 | 河南师范大学 | Motor with multiple cooling modes |
| CN211351874U (en) * | 2020-04-01 | 2020-08-25 | 嵊州市特灵电机股份有限公司 | Brushless motor |
| CN211981672U (en) * | 2020-05-21 | 2020-11-20 | 无锡科技职业学院 | Novel explosion-proof motor heat radiation structure |
| CN111677676A (en) * | 2020-06-19 | 2020-09-18 | 惠州市奇思创想科技有限公司 | Low-noise fire-fighting and ventilation dual-purpose cabinet type centrifugal fan |
| CN113651053B (en) * | 2021-10-13 | 2021-12-21 | 南通艾郎风电科技发展有限公司 | Wind power blade conveyor with electric control hydraulic adjusting mechanism |
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