A kind of air-flow cooling motor
The utility model belongs to machinery manufacturing technology field, is related to a kind of motor, more particularly to a kind of air-flow cooling electricity
Motor is a kind of equipment for converting electrical current into mechanical energy, it includes mainly one generating the electromagnetism in magnetic field
The stator winding and a rotating armature or rotor of iron winding or distribution, use the power on coil generate rotating excitation field and act on turn
Son forms electro-magnetic motor force rotation torque, effect of the magnetic field to electric current stress so that motor rotation is divided by power supply difference is used
Dc motor and ac motor, the motor in electric system are largely alternating current generators, can be synchronous motor or
It is asynchronous machine, but the motor of either what total class radiates when in the environment that motor is in the operating that works long hours
Difficulty is often the common fault of motor.
For the phenomenon of motor heat dissipation difficulty, manufacturer is improved for the shell of motor, in its shell
Increase cooling fin on outer wall, the structure of such design is mainly used for the heat dissipation of motor inner rotator and stator, often ignores and sets
It is placed in the working condition of electronic component on motor field frame, the overheat of electronic component is easy to after prolonged work,
When being again started up, it may appear that the case where crossing heat load leads to not normally work, in addition, electronic component shell is set
When being placed on motor field frame, if motor will be installed in a limited space, the radially projecting of this box stand can band
Carry out the shortcomings of space is big, while also limiting the angle positioning of motor reel symmetry.
The purpose of this utility model is to be directed to the above-mentioned problems in the prior art, provides that a kind of performance is stable, knot
Structure rationally, the air-flow of high efficiency and heat radiation cool down motor.
The purpose of this utility model can be realized by following technical proposal：A kind of air-flow cooling motor, including motor
Shell and transverse strands are set to the motor shaft on electric machine casing, and the electric machine casing both ends are separately provided for the front end of sealing
Lid and rear end cap, and bearing is respectively connected between motor shaft and drive end bearing bracket, rear end cap, the motor shaft has across rear end cap
Extend to external transmission segment, which is characterized in that the raised surrounding edge in edge of the rear end cap adds on the surrounding edge
There are bottom cover, the bottom cover and surrounding edge to make accommodating chamber there are one rear end cap formation, power supply is provided at the center of the accommodating chamber
The shaft sleeve that arbor passes through accommodates start-up capacitance device and several in the accommodating chamber and electronics that motor cooperation starts
End plate, the start stop switch for controlling start-up capacitance device break-make is provided on the rear end cap, and the tail portion of the transmission segment is solid
Be connected with air-flow impeller, there is the circle baffle ring towards air-flow impeller protrusion on the lateral surface of the bottom cover, the circle baffle ring against
In on impeller inner face so that be formed with gas channel between air-flow impeller and bottom cover, the air-flow impeller outer is provided with whole
Stream covers, and air inlet disk is offered on the radome fairing.
This air-flow cooling motor technique effect be：In order to reduce the space occupancy of motor in the longitudinal direction, this electricity
Originally the electrical appliance kit being set to outside electric machine casing is set in the accommodating chamber that rear end cap and bottom cover are formed by motivation, and by air-flow leaf
Wheel is set to the emission efficiency of the heat inside the outside raising motor of bottom cover and in accommodating chamber, in order to prevent electric machine shaft driving
Section is long to there is circular runout, and the shaft sleeve that power supply arbor passes through is provided in accommodating chamber, effectively improves the conversion of motor shaft energy
Reduce the generation of noise while efficiency.
In a kind of above-mentioned air-flow cooling motor, radiating fin is provided on the surface of the electric machine casing, it is described
Radiating fin be in strip, and be circumferentially uniformly distributed along the excircle of electric machine casing.The setting of radiating fin can help to carry
High motor internal heat distributes, and contributes to prolonged steady operation.
In a kind of above-mentioned air-flow cooling motor, interior peephole is provided on the side surface of the rear end cap, it is described
Dismountable assembly knob is provided on interior peephole.The design of interior peephole is convenient convenient for more intuitively observing motor working order
In a kind of above-mentioned air-flow cooling motor, drive end bearing bracket position corresponding with the inside of rear end cap and bearing
The place of setting all has the bearing bracket stand of protrusion, is integrally formed between the bearing bracket stand and drive end bearing bracket, rear end cap.Bearing is installed
It is fixed on end cap, optimizes motor overall structure.
In a kind of above-mentioned air-flow cooling motor, primary inlet port and auxiliary air vent, institute are offered on the air inlet disk
The primary inlet port stated is located at the center of air inlet disk, and the auxiliary air vent has a rectangular shape, and centered on primary inlet port, etc.
Interval is uniformly distributed.The combination of primary inlet port and auxiliary air vent, makes intake method be optimized, and improves intake efficiency.
In a kind of above-mentioned air-flow cooling motor, the bottom cover is towards being provided with for axis on the end face of accommodating chamber side
The outer surface of the stepped groove that sleeve is caught in, the stepped groove is arranged with thermally conductive sheet, and the thermally conductive sheet is in annular shape, and its is another
While being fixed on bottom cover edge.
Compared with prior art, this air-flow cooling motor is formed with putting electronic device between rear end cap and bottom cover
Accommodating chamber, the side of bottom cover is provided with heat dissipation of the air-flow impeller for component inside electric machine casing and in accommodating chamber, tool
There is the advantages of stable performance, reasonable for structure, high efficiency and heat radiation.
Description of the drawings
Fig. 1 is the general structure schematic diagram of this air-flow cooling motor.
Fig. 2 is the structure sectional view of this air-flow cooling motor.
In figure, 1, electric machine casing；2, motor shaft；3, drive end bearing bracket；4, rear end cap；5, bearing；6, transmission segment；7, surrounding edge；8、
Bottom cover；9, accommodating chamber；10, shaft sleeve；11, start-up capacitance device；12, electronics end plate；13, start stop switch；14, air-flow impeller；15、
Circle baffle ring；16, gas channel；17, radome fairing；18, air inlet disk；19, radiating fin；20, interior peephole；21, knob is assembled；22、
Bearing bracket stand；23, primary inlet port；24, auxiliary air vent；25, stepped groove；26, thermally conductive sheet.
Specific implementation mode
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1 to Figure 2, this air-flow cools down motor, including electric machine casing 1 and transverse strands are set to electric machine casing 1
On motor shaft 2,1 both ends of electric machine casing are separately provided for drive end bearing bracket 3 and the rear end cap 4 of sealing, and motor shaft 2 and front end
Bearing 5 is respectively connected between lid 3, rear end cap 4, motor shaft 2, which has, extends to external transmission segment 6, rear end cap across rear end cap 4
The 4 raised surrounding edge 7 in edge, is equipped with bottom cover 8 on surrounding edge 7, and bottom cover 8 is with surrounding edge 7 so that there are one rear end cap 4 formed
Accommodating chamber 9 is provided with the shaft sleeve 10 that power supply arbor 2 passes through at the center of accommodating chamber 9, start-up capacitance is accommodated in accommodating chamber 9
Electronics end plates 12 that device 11 and the cooperation of several and motor start are provided with for controlling start-up capacitance device on rear end cap 4
The tail portion of the start stop switch 13 of 11 break-makes, transmission segment is fixed with air-flow impeller 14, has towards air-flow leaf on the lateral surface of bottom cover 8
The circle baffle ring 15 of 14 protrusion of wheel, circle baffle ring 15 are resisted against on impeller inner face so that are formed between air-flow impeller 14 and bottom cover 8
Gas channel 16, air-flow impeller 14 are provided with radome fairing 17 outside, air inlet disk 18 are offered on the radome fairing 17.
It further describes in detail, is provided with radiating fin 19 on the surface of electric machine casing 1, radiating fin 19 is in strip, and edge
The excircle of electric machine casing 1 is circumferentially uniformly distributed.
It is provided with interior peephole 20 on the side surface of rear end cap 4, dismountable assembly rotation is provided on the interior peephole 20
Button 21, the design of interior peephole 20 is convenient for more intuitive observation motor working order, rational in infrastructure.
It further describes in detail, the bearing of protrusion is all had at drive end bearing bracket 3 and the inside of rear end cap 4 and 5 opposite position of bearing
Frame 22 is integrally formed between bearing bracket stand 22 and drive end bearing bracket 3, rear end cap 4.
It further describes in detail, primary inlet port 23 and auxiliary air vent 24 is offered on air inlet disk 18, primary inlet port 23 is located at air inlet
At the center of disk 18, auxiliary air vent 24 has a rectangular shape, and centered on primary inlet port 23, is uniformly distributed at equal intervals.
It further describes in detail, bottom cover 8 is towards being provided with the stepped groove being caught in for shaft sleeve 10 on the end face of 9 side of accommodating chamber
25, the outer surface of stepped groove 25 is arranged with thermally conductive sheet 26, and thermally conductive sheet 26 is in annular shape, and 8 edge of bottom cover is fixed in its another side
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although be used more herein electric machine casing 1, motor shaft 2, drive end bearing bracket 3, rear end cap 4, bearing 5, transmission segment 6,
Surrounding edge 7, bottom cover 8, accommodating chamber 9, shaft sleeve 10, start-up capacitance device 11, electronics end plate 12, start stop switch 13, air-flow impeller 14, circle
Baffle ring 15, gas channel 16, radome fairing 17, air inlet disk 18, radiating fin 19, interior peephole 20, assembly knob 21, bearing bracket stand 22,
The terms such as primary inlet port 23, auxiliary air vent 24, stepped groove 25, thermally conductive sheet 26, but it does not preclude the possibility of using other terms.
The use of these terms is merely for the convenience of describing and explaining the nature of the invention；It is construed as any type
Additional limitation is all contrary to the spirit of the present invention.