A kind of pump motor
Technical field
The utility model belongs to machinery manufacturing technology field, is related to a kind of pump, more particularly to a kind of pump motor.
Background technology
Submersible pump is that the pump housing and motor all pull the plug a kind of water pump of work, is the important equipment of deep-well water lift,
By stretch into the cable in well to motor power, eliminate transmission long axis, have it is compact-sized, it is light-weight, install, use and turn
Move convenient advantage, be mainly used in mine speedily carry out rescue work, industry cooling, field irrigation, seawater lift, steamer tune carry, fountain landscape
Etc., it, must be hydraulically full in suction line and pump before submersible pump turn on pump.After turn on pump, impeller high speed rotation, liquid therein
It as blade rotates together, under the influence of centrifugal force, flies away from impeller and projects outward, the liquid of injection is fast in pump case diffuser casing
Degree is gradually slack-off, and pressure gradually increases, then from pump discharge, discharge pipe outflow.
With the rapid development of pump industry, the structure of submersible pump is constantly improved in production is practical so that latent
The performance of water pump is greatly improved, but few producers draw attention to motor part separation structure, submersible pump at runtime,
Motor is under intensive work state when overload operation, the phenomenon that be easy to causeing overheat, causes motor to burn out and dives
The problems such as water pump is stopped work.
Invention content
The purpose of this utility model is to be directed to the above-mentioned problems in the prior art, provides a kind of high efficiency and heat radiation, property
The pump motor that can stablize.
The purpose of this utility model can be realized by following technical proposal:A kind of pump motor, including electric machine casing
And it is set up in the machine shaft in electric machine casing, and it is connected with bearing between machine shaft and electric machine casing end walls, it is described
Machine shaft excircle on be provided with stator core, coil, the stator core two are wound on the stator core
Side is provided with rotor, is provided on the rotor for the permanent magnet with fitting coils, which is characterized in that the motor casing
Body tail end is provided with radiating shell, and inlet is offered on the radiating shell and goes out liquid stream road, it is described go out liquid stream road with
Partition board is provided between inlet, the partition board lower end is provided with for directing fluid into out the water conservancy diversion bent plate in liquid stream road, institute
The radiating flow passage for being provided in motor casing body wall with going out liquid stream road and being connected is stated, the radiating flow passage end has wound motor
The annular channel of shell excircle is provided with liquid outlet on the annular channel, and the electric machine casing is close to radiating shell
Several cooling fins, the cooling fin circumferential direction uniform array are provided on the inner wall of one end.
The technique effect of this pump motor:For motor when being powered operating, the heat part of generation is by being set to end
Cooling fin on wall is transmitted in radiating shell, and radiating shell sucks fluid by inlet, then passes through drawing for water conservancy diversion bent plate
For water conservancy diversion into the radiating flow passage of electric machine casing, the fluid in radiating flow passage takes away most of heat that motor work generates from going out liquid
Mouth discharge.
In a kind of above-mentioned pump motor, cored retainer, the iron core are set on the stator core
Retainer one end is used for fixed stator iron core, and the other end is fixed on electric machine casing inner face.The setting of iron core retainer can
To increase the gap between stator core and electric machine casing, stator core radiating efficiency is improved.
In a kind of above-mentioned pump motor, the cooling fin uses conductive graphite piece.Graphite flake heat transfer efficiency is high,
Can be improved by graphite heat radiation fin will be in the heat transfer to radiating shell in electric machine casing.
In a kind of above-mentioned pump motor, rotating vanes, the rotating vanes are provided on rear side of the rotor
It is circumferentially uniformly distributed along centre bore in arc-shaped.Rotating vanes rotation is driven while motor rotates, and is improved in electric machine casing
The mobility of air.
In a kind of above-mentioned pump motor, it is described go out liquid stream road road junction be provided with water conservancy diversion blade, the water conservancy diversion
Blade is bent towards liquid stream road direction is gone out.Fluid is after the outflow of water conservancy diversion bent plate, in order to avoid the random impact radiating shell of fluid is made
It can play the role of correct water conservancy diversion at the loss and generation noise, the water conservancy diversion blade of setting of energy.
Compared with prior art, this pump motor is provided with radiating shell, and fluid motion band is guided by radiating shell
The heat that motor operating generates is walked, while cooling fin auxiliary heat dissipation is set, has the advantages that high efficiency and heat radiation, performance are stablized.
Description of the drawings
Fig. 1 is the overall structure sectional view of this pump motor.
Fig. 2 is the structural schematic diagram of radiating shell in this pump motor.
Fig. 3 is the part-structure schematic diagram of electric machine casing in this pump motor.
In figure, 1, electric machine casing;2, machine shaft;3, bearing;4, stator core;5, coil;6, rotor;7, permanent magnet;
8, radiating shell;9, inlet;10, go out liquid stream road;11, partition board;12, water conservancy diversion bent plate;13, radiating flow passage;14, annular channel;
15, liquid outlet;16, cooling fin;17, rotating vanes;18, water conservancy diversion blade;19, iron core retainer.
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, Figure 2, Figure 3 shows, this pump motor, including electric machine casing 1 and the electricity that is set up in electric machine casing 1
Machine shaft 2, and it is connected with bearing 3 between 1 end walls of machine shaft 2 and electric machine casing, it is fixed to be provided on 2 excircle of machine shaft
Sub- iron core 4 is wound with coil 5 on stator core 4, and 4 both sides of stator core are provided with rotor 6, is provided with and is used for and line on rotor 6
The permanent magnet 7 of 5 cooperation of circle, 1 tail end of electric machine casing are provided with radiating shell 8, inlet 9 are offered on radiating shell 8 and goes out liquid
Runner 10, goes out between liquid stream road 10 and inlet 9 to be provided with partition board 11, and 11 lower end of partition board is provided with for directing fluid into out liquid
Water conservancy diversion bent plate 12 in runner 10 is provided in 1 wall of electric machine casing and the radiating flow passage 13 that goes out liquid stream road 10 and be connected, sink flows
13 end of road has the annular channel 14 of 1 excircle of wound motor shell, and liquid outlet 15, motor casing are provided on annular channel 14
Body 1 is provided with several cooling fins 16, the circumferential uniform array of cooling fin 16 on 8 one end inner wall of radiating shell.
In order to improve 4 radiating efficiency of stator core, cored retainer 19, iron core retainer 19 are set on stator core 4
One end is used for fixed stator iron core 4, and the other end is fixed on 1 inner face of electric machine casing.
In order to improve the radiating efficiency of motor entirety, cooling fin 16 uses conductive graphite piece.
In order to improve the mobility of air in electric machine casing 1, the rear side of rotor 6 is provided with rotating vanes 17, rotating vanes
17 are circumferentially uniformly distributed in arc-shaped along centre bore.
In order to improve the runner efficiency of fluid, the road junction for going out liquid stream road 10 is provided with water conservancy diversion blade 18,18 court of water conservancy diversion blade
Go out the bending of 10 direction of liquid stream road.Fluid is after the outflow of water conservancy diversion bent plate 12, in order to avoid the random impact radiating shell of fluid 8 causes
The loss of energy and generation noise, the water conservancy diversion blade 18 of setting can play the role of correct water conservancy diversion.
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, machine shaft 2, bearing 3, stator core 4, coil 5, rotor 6,
Permanent magnet 7, radiating shell 8, inlet 9, go out liquid stream road 10, partition board 11, water conservancy diversion bent plate 12, radiating flow passage 13, annular channel 14,
The terms such as liquid outlet 15, cooling fin 16, rotating vanes 17, water conservancy diversion blade 18, iron core retainer 19, but be not precluded using other
The possibility of term.The use of these terms is merely for the convenience of describing and explaining the nature of the invention;Them
It is contrary to the spirit of the present invention to be construed to any one of the additional limitations all.