CN210490650U

CN210490650U - Special permanent magnet synchronous motor for induction automatic door

Info

Publication number: CN210490650U
Application number: CN201921270191.8U
Authority: CN
Inventors: 姚尧; 薛振江; 汪涛
Original assignee: Suzhou Gena Technology Co ltd
Current assignee: Suzhou Gena Technology Co ltd
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-05-08
Anticipated expiration: 2029-08-07

Abstract

The utility model discloses a dedicated permanent magnet synchronous motor of response automatically-controlled door, which comprises a housin, the outer terminal surface of casing outwards extends there is quick latch mechanism, quick latch mechanism is used for direct accordant connection response automatically-controlled door general type track, be provided with the rotor subassembly and the stator module of motor in the casing, have a main shaft setting to be in the casing and its one end stretch out the casing, stretch out of main shaft one of casing is served fixedly and is provided with the belt pulley for with drive response automatically-controlled door pivoted belt accordant connection. Compared with the prior art, the utility model cancels the speed reducing mechanism, realizes the cost reduction and reduces the failure rate; the special stator structure and the lengthened winding increase the torque of the motor and meet the driving requirements of the electric door and window; the clamping jaw is directly matched and connected with the universal rail of the induction automatic door, and the installation is convenient.

Description

Special permanent magnet synchronous motor for induction automatic door

Technical Field

The utility model relates to the technical field of motors, particularly, especially, relate to a dedicated PMSM of response automatically-controlled door.

Background

Generally, the main structure of a motor dedicated for an induction automatic door is composed of a transmission motor (a ferrite magnetic steel high-speed motor) and a gear reducer, and the gear reducer is generally assembled by a worm gear and a worm. The high-speed motor of the ferrite magnetic steel provides high rotating speed and low torque output, the gear box is connected with the transmission motor, the rotating speed output by the transmission motor is reduced, and the torque (bearing capacity) is improved, so that the induction automatic door is driven to close and rotate to drive operation. But the gear reducer has high failure rate, the gear is blocked, oil is needed for lubrication, and the requirement on materials is high; the running noise is large; the cost of the gear reducer accounts for one third of the cost of the motor; in winter, in cold regions, lubricating oil of the gear reducer is frozen, so that the automatic door can not operate easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art existence, provide a dedicated PMSM of response automatically-controlled door.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a dedicated permanent magnet synchronous motor of response automatically-controlled door, includes the casing, the outer terminal surface of casing outwards extends has quick latch mechanism, quick latch mechanism is used for direct accordant connection response automatically-controlled door general type track, be provided with the rotor subassembly and the stator module of motor in the casing, there is a main shaft setting to be in just its one end stretches out in the casing, stretching out of main shaft one of casing serves fixedly and is provided with the belt pulley for with drive response automatically-controlled door pivoted belt accordant connection.

Preferably, the permanent magnet synchronous motor is an outer rotor permanent magnet synchronous motor, and the specification parameters are as follows: 20 poles; rated torque: 1.7 NM; rated rotation speed: 200 rpm; rated power: 50W.

Preferably, the casing includes rear end housing and front end housing, be fixed with on the rear end housing stator module, the stator module outside is provided with the rotor subassembly, the rear end housing is stair structure, including the hollow disc of a major diameter and the drum structure that extends the setting on its central axis, be provided with on the outer terminal surface of hollow disc quick latch mechanism, quick latch mechanism be with the integrative jack catch that forms of rear end housing, the jack catch equipartition is in on the hollow disc lateral surface is all around.

Preferably, the rotor assembly comprises a rotor body in a concave frame structure, a group of magnetic steels and an output shaft fixed on the rotor body are fixedly arranged on the inner wall of the rotor body, the output shaft and the main shaft are coaxially fixed, and the rotor body and the output shaft are fixed in a cold pressing mode.

Preferably, the stator assembly comprises a stator core arranged on the cylinder structure in a surrounding manner, insulation wall plates are fixedly arranged at two ends of the stator core, and the winding is wound on the stator core.

Preferably, the width of the winding is comparable to the width distance of the inner cavity of the housing.

Preferably, bearings which are sleeved on the main shaft and matched with the main shaft are fixedly arranged in the cylinder structure, the bearings are located at two ends of the main shaft, and the bearings are deep groove ball bearings.

Preferably, the rear end cover is further sleeved with a sealing ring.

Preferably, the rear end cover is further fixedly provided with a wire pressing plate for fixing an external wire through a screw.

The beneficial effects of the utility model are mainly embodied in that:

1. compared with the prior art, the speed reduction mechanism is cancelled, the cost is reduced, and the failure rate is reduced;

2. the special stator structure and the lengthened winding increase the torque of the motor and meet the driving requirements of the electric door and window;

3. the clamping jaw is directly matched and connected with the universal rail of the induction automatic door, and the installation is convenient.

Drawings

The technical scheme of the utility model is further explained by combining the attached drawings as follows:

FIG. 1: the structure of the preferred embodiment of the present invention is schematically illustrated.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not limited to the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the scope of the present invention. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1, the utility model discloses a special permanent magnet synchronous motor of response automatically-controlled door includes rear end housing 1, front end housing (not shown in the figure), with rear end housing 1 relatively fixed's stator module 2, and with rear end housing 1 relatively rotates, and sets up the rotor subassembly 3 in the stator module 2 outside, the rear end housing is the stair structure, and it includes the hollow disc 14 of a major diameter and extends the drum structure 13 that sets up on its central axis, stator module 2 sets firmly on drum structure 13.

In this embodiment, the rotor assembly 3 includes a rotor body 30 having a concave frame structure, a set of magnetic steels 4 is fixedly disposed on an inner wall of the rotor body 30, and an output shaft 32 fixed on the rotor body 30, and the output shaft 32 and the main shaft 5 are coaxially fixed. Preferably, magnet steel 4 sets firmly fixed mode on rotor subassembly 3 is not the utility model discloses a protection main points, consequently do not do too much repeated description here.

The output shaft 32 is provided with a through hole, and a spline connected with the spline groove of the main shaft 5 is arranged in the through hole. The main shaft 5 and the output shaft 32 are in cold pressing interference fit. The main shaft and the rotor are in cold pressing interference fit, so that the connection reliability can be greatly improved, the sliding phenomenon between the main shaft and the rotor is avoided, and the service life of the main shaft is prolonged. The output shaft 32 is fixedly provided with a belt pulley 31 which is used for being connected with a belt for driving the induction automatic door to rotate in a matching way.

Stator module 2 is including enclosing to establish stator core 21 on the drum structure 13, the hall element has set firmly on stator core 21, insulated wall panel 22 has set firmly at the both ends of stator core 21, insulated wall panel 22 has set firmly winding 23, wherein keep away from through hole 31 still be equipped with the hall board on the lateral surface of winding 23. The width of the winding 23 corresponds to the width distance of the inner cavity of the housing. The rear end cover 1 is also fixedly provided with a wire pressing plate 18 for fixing an external wire through a screw 17. The rear end cover 1 is further sleeved with a sealing ring 16, and the sealing ring 16 is located between the Hall plate 24 and the inner wall of the rear end cover 1 and is tightly attached to the Hall plate and the inner wall of the rear end cover.

The utility model discloses in, winding 23 is three-phase winding, and three-phase winding is along stator core 21 symmetric distribution, 120 degrees electrical angle of each other being poor in the space. The three-phase current is introduced into the winding 23, a rotating magnetic field is formed in the winding of the motor after the current is introduced, the magnetic steel is installed on the rotor, the magnetic poles of the magnetic steel are fixed, and according to the principle that like poles of the magnetic poles attract each other and opposite poles repel each other, the rotating magnetic field generated in the stator assembly can drive the rotor to rotate, and finally the rotating speed of the rotor is equal to the rotating speed of the rotating magnetic poles generated in the stator assembly. In addition, the hall element is a semiconductor using a hall effect to measure the rotational speed of the rotor.

The utility model discloses in, be provided with quick latch mechanism on the outer terminal surface of hollow disc 14, quick latch mechanism be with 1 an organic whole jack catch 15 that forms of rear end cap, jack catch 15 equipartition is in on all around of hollow disc 14 lateral surface. The claw 15 can be arranged on the guide rail of the electric door and window quickly, the installation is convenient, the motor is convenient to integrally disassemble, and the working efficiency is greatly improved.

And bearings 6 which are sleeved on the main shaft 5 and matched with the main shaft are fixedly arranged in the cylindrical structure 13, and the bearings 6 are positioned at two ends of the main shaft 5. Bearing 6 is deep groove ball bearing, adopts deep groove ball bearing to utilize its operation that is applicable to high rotational speed even very high rotational speed, and it is little to have coefficient of friction, and limit speed is high, and can bear a certain amount bear radial load and axial load, of course, also can adopt other bearings, the utility model discloses do not specifically prescribe a limit to.

The working process of the utility model is simply explained as follows: when the stator assembly is introduced with three-phase alternating current which is subjected to pulse width modulation by a three-phase inverter, the stator assembly can generate a space magnetic field, and the space magnetic field interacts with the rotor assembly to generate electromagnetic torque output with the same rotating direction of the rotating magnetic field of the stator assembly. When the output torque exceeds the friction torque of the rotor assembly and the damping torque of the permanent magnet, the permanent magnet synchronous motor special for the induction automatic door starts to do work outwards and continuously accelerates until synchronization.

The dedicated permanent magnet synchronous motor of response automatically-controlled door is applied to electric door and window's drive, the dedicated permanent magnet synchronous motor of response automatically-controlled door not high rotational speed motor, consequently need not the speed reducer in its drive of being applied to electric door and window, get rid of the speed reducer and can greatly reduce the cost of installation electric door and window.

The special permanent magnet synchronous motor for the induction automatic door has the following specifications:

the number of poles of the motor is as follows: 20 poles;

rated torque: 1.7NM150KG x 2 double open;

rated rotation speed: the maximum speed of 200rpm is 0.5 m/s;

rated power: 50W;

the temperature of the use environment: -25 to 50 ℃;

relative humidity: less than or equal to 80 percent.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a dedicated PMSM of response automatically-controlled door which characterized in that: the motor-driven automatic door locking device comprises a housin, the outer terminal surface of casing outwards extends there is quick clamping mechanism, quick clamping mechanism is used for direct accordant connection response automatically-controlled door general type track, be provided with rotor subassembly (3) and stator module (2) of motor in the casing, have a main shaft (5) to set up and stretch out just its one end in the casing, stretching out of main shaft (5) one of casing is served fixedly and is provided with belt pulley (31) for with drive response automatically-controlled door pivoted belt accordant connection.

2. The permanent magnet synchronous motor special for the induction automatic door according to claim 1, characterized in that: the permanent magnet synchronous motor is an outer rotor permanent magnet synchronous motor, and the specification parameters are as follows: 20 poles; rated torque: 1.7 NM; rated rotation speed: 200 rpm; rated power: 50W.

3. The permanent magnet synchronous motor for the induction automatic door according to claim 1 or 2, characterized in that: the casing includes rear end housing (1) and front end housing, be fixed with on rear end housing (1) stator module (2), the stator module (2) outside is provided with rotor subassembly (3), the rear end housing is stair structure, hollow disc (14) including a major diameter and drum structure (13) that extend the setting on its central axis, be provided with on the outer terminal surface of hollow disc (14) quick latch mechanism, quick latch mechanism be with jack catch (15) that rear end housing (1) an organic whole formed, jack catch (15) equipartition is in on all around of hollow disc (14) lateral surface.

4. The permanent magnet synchronous motor special for the induction automatic door according to claim 3, characterized in that: rotor subassembly (3) are including rotor body (30) that are concave frame structure, have set firmly a set of magnet steel (4) on its inner wall, and fix output shaft (32) on rotor body (30), output shaft (32) with main shaft (5) are coaxial fixed mutually, rotor body (30) with it is fixed for colding pressing between output shaft (32).

5. The permanent magnet synchronous motor special for the induction automatic door according to claim 3, characterized in that: stator module (2) is including enclosing stator core (21) of establishing on drum structure (13), the both ends of stator core (21) set firmly insulated wall board (22), and winding (23) are around on stator core (21).

6. The permanent magnet synchronous motor special for the induction automatic door according to claim 5, characterized in that: the width of the winding (23) is equivalent to the width distance of the inner cavity of the shell.

7. The permanent magnet synchronous motor special for the induction automatic door according to claim 3, characterized in that: the cylindrical structure (13) is internally and fixedly provided with a bearing (6) which is sleeved on the main shaft (5) and matched with the main shaft, the bearing (6) is positioned at two ends of the main shaft (5), and the bearing (6) is a deep groove ball bearing.

8. The permanent magnet synchronous motor special for the induction automatic door according to claim 5, characterized in that: and the rear end cover (1) is also sleeved with a sealing ring (16).

9. The permanent magnet synchronous motor special for the induction automatic door according to claim 8, characterized in that: the rear end cover (1) is also fixedly provided with a line pressing plate (18) for fixing an external line through a screw (17).