A kind of direct current generator
Technical field
The utility model relates to motor field more particularly to a kind of direct current generators.
Background technique
Direct current generator, which refers to, can be converted to mechanical energy by direct current energy or convert mechanical energy into the electric rotating of direct current energy
Machine realizes the mutual conversion between direct current energy and mechanical energy.
Heat can be generated in the direct current generator course of work, in order to guarantee that direct current generator works normally, need to be arranged heat dissipation knot
The heat generated in the direct current generator course of work is discharged structure.Fan is generallyd use in the prior art to radiate, but straight
When stream motor speed is larger, heat dissipation is likely to result in not in time using existing fan structure so that influencing the normal of direct current generator
Work.
Utility model content
The purpose of this utility model is to provide a kind of direct current generators, are able to solve existing direct current generator because radiating not in time
And influence the problem of direct current generator works normally.
For this purpose, the utility model uses following technical scheme:
A kind of direct current generator, including along axial sequentially connected non-drive side end cap, back shroud and shell, the shell
Rotor equipped with stator and with stator cooperation, the armature spindle of the rotor pass through the back shroud and are connected with radiation air
Fan, the non-drive side end cap are equipped with the first air inlet, are respectively equipped with second in the end face of the back shroud and peripheral side
Air inlet and air outlet;The non-drive side end cap inner wall is equipped with filter screen, first air inlet and second air inlet
Place is equipped with filter screen, and the back shroud inner wall is equipped with heat absorption coil pipe, is equipped with water in the heat absorption coil pipe, the stator is equipped with
Heat sink, the heat sink are equipped with combined aural and visual alarm and temperature sensor, and the outer casing inner wall is equipped with overheat protector, described
Overheat protector is electrically connected to the temperature sensor.
Further, the peripheral outer wall of the non-drive side end cap is equipped with several circumferentially distributed first air inlets
Mouthful;The end face of the non-drive side end cap is equipped with several first air inlets.
Further, the end face of the back shroud is equipped with second air inlet that several circumferential directions are arranged distribution, described
Projection of first air inlet on back shroud is shifted to install with second air inlet.
Further, the peripheral side of the back shroud is equipped with shutter, if the shutter is formed
Do the air outlet.
Further, the back shroud is equipped with mounting hole, and the shutter covers the mounting hole and passes through spiral shell
Nail is connected to the back shroud.
Further, two free ends of the heat absorption coil pipe stretch out the back shroud and are respectively formed medium entrance and Jie
Matter outlet, injected by the medium entrance into the heat absorption coil pipe cooling medium, the media outlet and the medium into
Mouth is equipped with dismountable closure.
Further, gasket is equipped between the closure and the contact surface of the media outlet.
It further, further include retainer and carbon brush, the retainer and the carbon brush are set in the back shroud.
Further, rolling bearing is equipped between the armature spindle and the back shroud.
Further, the damping disk(-isc) being firmly connected with it is arranged on the armature spindle.
The utility model has the beneficial effects that rotor drives radiator fan work, and radiator fan will be outer when direct current generator works
The air on boundary is sucked in non-drive side end cap by the first air inlet, and is sent into back shroud by the second air inlet, to rear cover
Hot-air in plate cools down, and the hot-air in back shroud is blown out;The cooling medium in heat absorption coil pipe can also be passed through
Cool down to hot-air in back shroud;When direct current generator work simultaneously, the heat sink on stator can speed up direct current generator work
Make the export of heat produced by process, realizes the type of cooling of air-cooled and water cooling cooperation, improve cooling efficiency;It is further logical
The temperature of excess temperature sensor real-time monitoring stator, stator when the temperature is excessively high, by combined aural and visual alarm remind user, simultaneously
Overheat protector can control direct current generator and stop working, and carry out overheating protection to direct current generator.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of direct current generator described in the utility model;
Fig. 2 is the partial enlargement diagram in Fig. 1 at I.
In figure:
1, non-drive side end cap;2, back shroud;3, shell;4, armature spindle;5, the first air inlet;6, the second air inlet;7,
Air outlet;8, radiator fan;9, absorb heat coil pipe;10, damping disk(-isc);11, it blocks.
Specific embodiment
The technical issues of to solve the utility model, the technical solution of use and the technical effect that reaches are clearer,
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.It is understood that
Specific embodiment described herein is used only for explaining the utility model, rather than the restriction to the utility model.In addition it also needs
It is noted that illustrating only part relevant to the utility model for ease of description, in attached drawing and not all.
As depicted in figs. 1 and 2, a kind of direct current generator is present embodiments provided, including along axial sequentially connected non-drive
Side end cap 1, back shroud 2 and shell 3, the interior rotor equipped with stator and with stator cooperation of shell 3, after the armature spindle 4 of rotor passes through
Cover board 2 is simultaneously connected with radiator fan 8, and non-drive side end cap 1 is equipped with the first air inlet 5, the end face of back shroud 2 and peripheral side
On be respectively equipped with the second air inlet 6 and air outlet 7;Non-drive 1 inner wall of side end cap is equipped with filter screen, the first air inlet 5 and second
Filter screen is equipped at air inlet 6,2 inner wall of back shroud is equipped with heat absorption coil pipe 9, and water is equipped in heat absorption coil pipe 9, and stator, which is equipped with, to be dissipated
Hot plate, heat sink are equipped with combined aural and visual alarm and temperature sensor, and 3 inner wall of shell is equipped with overheat protector, overheat protector electricity
It is connected to temperature sensor.
When direct current generator works, rotor drives radiator fan 8 to work, radiator fan 8 by extraneous air by first into
Air port 5 sucks in non-drive side end cap 1, and by the second air inlet 6 be sent into back shroud 2 in, to the hot-air in back shroud 2 into
Row cooling, and the hot-air in back shroud 2 is blown out;It can also be by the cooling medium in heat absorption coil pipe 9 to hot in back shroud 2
Air cools down;When direct current generator work simultaneously, the heat sink on stator be can speed up produced by the direct current generator course of work
The export of heat realizes the type of cooling of air-cooled and water cooling cooperation, improves cooling efficiency;Further pass through temperature sensor
The temperature of real-time monitoring stator, stator when the temperature is excessively high, user, while overheating protection are reminded by way of sound-light alarm
Device can control direct current generator and stop working, and carry out overheating protection to direct current generator.
The peripheral outer wall of non-drive side end cap 1 is equipped with several the first circumferentially distributed air inlets 5;Non-drive side end cap 1
End face be equipped with several circumferential directions and be arranged the first air inlet 5 of distribution, by the way that multiple first air inlets 5 are arranged, further mention
High cooling efficiency.The end face of back shroud 2 is equipped with the second air inlet 6 that several circumferential directions are arranged distribution, and is set to non-drive side
Projection of first air inlet 5 on back shroud 2 on 1 end face of lid is shifted to install with the second air inlet 6.It is realized by above-mentioned setting
First air inlet 5 and the second air inlet 6 shift to install, and accelerate gas flowing, make cold air full of each area in back shroud 2
Domain tentatively cools down to back shroud 2.
The peripheral side of back shroud 2 is equipped with shutter, and shutter forms several air outlets 7, sets on back shroud 2
There is mounting hole, shutter covering mounting hole is simultaneously connected by screw in back shroud 2.It is sent into back shroud 2 by radiator fan 8
Cold air be able to drive gas flowing, while the hot-air in cold air and back shroud 2 is exchanged heat, cold air will
Hot-air is discharged from air outlet 7.Without processing air outlet 7 in back shroud 2, processing mounting holes are only needed, by shutter
Simultaneously screw is connected to back shroud 2 to structure covering mounting hole, simplifies the processing technology of back shroud 2.
Two free ends of heat absorption coil pipe 9 stretch out back shroud 2 and are respectively formed medium entrance and media outlet, pass through medium
Cooling medium is injected in import into heat absorption coil pipe 9, and media outlet and medium entrance are equipped with dismountable closure 11.It can be set
External impetus, such as water pump recycle the water in heat absorption coil pipe 9, realize cooling, after heat dissipation, can also will absorb heat
Water in coil pipe 9 is extracted out by water pump or natural cooling.
It blocks and is equipped with gasket between 11 and the contact surface of media outlet, prevent leak at media outlet.
Above-mentioned direct current generator further includes retainer and carbon brush, and retainer and carbon brush are set in back shroud 2, passes through above-mentioned wind
Cold, water cooling mode radiates to components such as carbon brush and retainers.
In order to reduce the frictional force between armature spindle 4 and back shroud 2, rotation axis is equipped between armature spindle 4 and back shroud 2
It holds.
In direct current generator rotation process, if direct current generator will appear biggish vibration in the higher situation of revolving speed, it is
Reduce the vibration in the direct current generator course of work, be arranged with the damping disk(-isc) 10 being firmly connected with it on armature spindle 4, with adjustment
The center of gravity of direct current generator makes direct current generator smooth rotation, reduces the vibration in the course of work.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.