CN112671168A

CN112671168A - Wide voltage motor

Info

Publication number: CN112671168A
Application number: CN202011570852.6A
Authority: CN
Inventors: 杨传长; 田志强; 杨涛
Original assignee: Anhui Chuangye Mechanical & Electrical Equipment Co ltd
Current assignee: Anhui Chuangye Mechanical & Electrical Equipment Co ltd
Priority date: 2020-12-26
Filing date: 2020-12-26
Publication date: 2021-04-16

Abstract

The invention belongs to the technical field of motors, and particularly relates to a wide-voltage motor, which comprises: the stator is fixedly arranged in the shell, the lengths of iron cores of the stator and the rotor are 125mm, the iron cores of the stator and the rotor are both formed by cold rolling of 50WW470 silicon steel sheets, the junction box is connected with a winding of the stator through a lead wire, the winding of the stator is in a single-layer crossed mode, the number of turns of the winding of the stator is 33 turns/slot, the fan is arranged at the rear end of the motor shaft, and the fan cover is fixed at the rear end of the shell through screws, so that the power voltage application range is wide; the motor is suitable for a 360V-415V/50 Hz three-phase alternating current power supply, and the motor is not easy to burn out.

Description

Wide voltage motor

Technical Field

The invention belongs to the technical field of motors, and particularly relates to a wide-voltage motor.

Background

Motors are widely used in many fields, but the current motors are mainly suitable for 380V +/-5% V and 50HZ, but when the voltage is higher than 400V or lower than 360V, the motor generates too high temperature rise until the risk of burning out is generated.

Disclosure of Invention

In view of the problems in the prior art, the present invention aims to provide a wide voltage motor which can ensure normal use and is not easy to be burnt out.

In order to achieve the purpose, the invention adopts the following technical scheme:

a wide voltage motor comprising: the motor comprises a shell, a junction box, a front end cover, a rear end cover, a motor shaft, a rotor, a stator, a fan and a fan cover, wherein the junction box is arranged outside the shell through screws, the front end cover is arranged at the front end of the shell through screws, the rear end cover is arranged at the rear part of the shell through screws, the motor shaft is arranged on the front end cover and the rear end cover through bearings, the rear end of the motor shaft extends out of the rear end cover, the rotor is fixed on the motor shaft through a shrink fit mode, the stator is fixedly arranged inside the shell, the lengths of iron cores of the stator and the rotor are 125mm, the iron cores of the stator and the rotor are both formed by cold rolling of 50WW470 silicon steel sheets, the junction box is connected with a winding of the stator through a lead wire, the winding of the stator is in a single-layer crossed mode, the number of turns of the stator is 33 turns/slot, the fan housing is fixed at the rear end of the casing through screws.

Compared with the prior art, the invention has the following technical effects:

the power supply voltage has wide application range; the three-phase alternating current power supply is suitable for a 360V-415V/50 Hz three-phase alternating current power supply. 2. The motor is not easy to burn out;

the overload resistance is strong: the design increases the motor service factor to S.F-1.30.

The service life is long: a. insulation grade F, and special requirement grade H. b. The bearing is a human bearing and an NSK bearing.

The invention has good energy-saving effect, and the motor is redesigned and manufactured according to the design scheme of the YE2-100L1-4/2.2kw three-phase asynchronous motor. The energy efficiency grade reaches the 3-grade energy efficiency of the national standard 'energy efficiency limit value and energy efficiency grade of small and medium-sized three-phase asynchronous motors' (GB 18613-2012).

Drawings

Fig. 1 is a side sectional view of a wide voltage motor provided in embodiment 1 of the present invention;

fig. 2 is a schematic side view of a fan and a fan cover according to embodiment 2 of the present invention;

wherein, 1, a shell; 2. a junction box; 3. a front end cover; 4. a rear end cap; 5. a motor shaft; 6. a rotor; 7. a stator; 8. a fan; 9. a fan housing; 91. a heat-dissipating web; 92. a heat sink; 93. adjusting a rod; 94. an adjusting ring; 95. a sealing plate; 96. and (4) adjusting the groove.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further clarified by combining the specific drawings.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1, a wide voltage motor includes: the motor comprises a machine shell 1, a junction box 2, a front end cover 3, a rear end cover 4, a motor shaft 5, a rotor 6, a stator 7, a fan 8 and a fan cover 9, wherein the junction box 2 is installed outside the machine shell 1 through screws, the front end cover 3 is installed at the front end of the machine shell 1 through screws, the rear end cover 4 is installed at the rear part of the machine shell 1 through screws, the motor shaft 5 is installed on the front end cover 3 and the rear end cover 4 through bearings, the rear end of the motor shaft 5 extends out of the rear end cover 4, the rotor 6 is fixed on the motor shaft 5 through a heat sleeve mode, the stator 7 is fixedly arranged inside the machine shell 1, the lengths of iron cores of the stator 7 and the rotor 6 are 125mm, the junction box 2 is connected with a winding of the stator 7 through a lead wire, the winding form of the stator 7 is in a single-layer cross mode, the number of turns of the stator 7 is 33 turns/groove, the, the fan housing 9 is fixed at the rear end of the casing 1 through screws.

The invention is implemented in such a way that the junction box 2 is used for connecting an external power supply, the junction box 2 is connected with a winding of the stator 7 through a lead wire, the stator 7 is connected with current to form a rotating magnetic field, the rotor 6 induces electromotive force and current due to relative motion between the rotor 6 and the magnetic field, namely, the rotating magnetic field and the rotor 6 have relative rotating speed and interact with the magnetic field to generate electromagnetic torque, so that the rotor 6 rotates to realize the conversion of electric energy to mechanical energy, the rotor 6 rotates to drive the motor shaft 5 to rotate, the motor shaft 5 rotates to drive the fan 8 to rotate for heat dissipation, as the lengths of the iron cores of the stator 7 and the rotor 6 are 125mm and the number of turns of the winding of the stator 7 is 33 turns/slot, the lengths of the iron cores of the stator 7 and the rotor 6 are increased, the number of turns of the winding of the stator 7 is reduced, so that, therefore, the voltage fluctuation range of the motor is adapted to be within 360-415V, the voltage range is wide, and the defect that the motor is burnt out due to overhigh temperature rise is avoided.

Example 2

The same points as those in example 1 are not repeated, and the difference from example 1 is that:

referring to fig. 2, a heat dissipation net 91 for ventilation and dust prevention is disposed at an end of the fan housing 9 located outside the fan 8, a plurality of heat dissipation grooves 92 for heat dissipation and ventilation are disposed at an outer side of the fan housing 9, adjustment grooves 96 are disposed in the fan housing 9 located at one side of the heat dissipation grooves 92, sealing plates 95 which are slidably connected and used for sealing the heat dissipation grooves 92 are disposed in the adjustment grooves 96, adjustment rods 93 which are fixedly connected are disposed on the sealing plates 95, adjusting rings 94 which are connected are disposed on the motor shaft located at one side of the fan 8, outer sides of the adjusting rings 94 are respectively fixedly connected with ends of the corresponding adjusting rods 93, and an energy storage spring which is connected is disposed between the adjusting rings 94 and the.

The design of energy storage clockwork spring utilizes the motor when starting, and the rotation of motor shaft drives adjustable ring 94 and rotates to make adjusting pole 93 drive closing plate 95 and rotate and contract to the adjustment tank 96 in, make radiating groove 92 open, the effectual holistic radiating effect that has improved, after the motor stops, the energy storage clockwork spring can effectually drive adjustable ring 94 reversal, thereby make closing plate 95 rotatory close radiating groove 92, the effectual dustproof effect of motor when not using of having guaranteed.

Further, the energy storage spring adopts a spring with a full-chain protection mechanism in an automatic mechanical watch adopted in the technical field of the existing mechanical watch.

The foregoing shows and describes the general principles, essential features, and inventive features of this invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a wide voltage motor, includes casing, terminal box, front end housing, rear end housing, motor shaft, rotor, stator, fan housing, the terminal box pass through the screw and install outside the casing, the front end housing pass through the screw and install at the casing front end, the rear end housing pass through the screw and install at the rear portion of casing, the motor shaft pass through the bearing and install on front end housing and rear end housing, and the rear end of motor shaft stretches out the rear end housing, the rotor fix on the motor shaft through the mode of shrink fit, the stator set firmly inside the casing, its characterized in that: the length of the iron cores of the stator and the rotor is 125mm, the iron cores of the stator and the rotor are both formed by cold rolling of 50WW470 silicon steel sheets, the junction box is connected with the winding of the stator through a lead wire, the winding of the stator is in a single-layer cross type, and the number of winding turns of the stator is 33 turns/slot.

2. The wide voltage motor according to claim 1, wherein: the fan is arranged at the rear end of the motor shaft, and the fan cover is fixed at the rear end of the shell through screws.

3. The wide voltage motor according to claim 1, wherein: the manufacturing method of the wide-voltage motor comprises the following steps: the wide-voltage motor is redesigned and manufactured according to the design scheme of YE2-100L1-4/2.2kw three-phase asynchronous motor.

4. The wide voltage motor according to claim 1, wherein: be located the fan outside the fan tip is equipped with and is used for ventilating dirt-proof radiator-grid, the outside of fan housing is equipped with a plurality of radiating grooves that are used for heat dissipation and ventilation, is located radiating groove one side all be equipped with the adjustment tank in the fan housing, be equipped with sliding connection in the adjustment tank and be used for the sealed closing plate of radiating groove, be equipped with fixed connection's regulation pole on the closing plate, be located fan one side be equipped with the adjustable ring that is connected on the motor shaft, the adjustable ring outside respectively with corresponding regulation pole tip fixed connection, be equipped with the energy storage clockwork spring that is connected between adjustable ring and the motor shaft.