CN104967243A - Variable frequency motor and water supply system - Google Patents
Variable frequency motor and water supply system Download PDFInfo
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- CN104967243A CN104967243A CN201510370992.1A CN201510370992A CN104967243A CN 104967243 A CN104967243 A CN 104967243A CN 201510370992 A CN201510370992 A CN 201510370992A CN 104967243 A CN104967243 A CN 104967243A
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Abstract
The invention discloses a variable frequency motor and a water supply system. The variable frequency motor comprises an outer housing, a stator, a rotor and a frequency conversion module. The stator and the rotor are installed in the housing; the rotor has a rotation shaft; one end of the housing is an output end; the other end of the housing is a non-output end; one end of the rotation shaft is an output end; the other end of the rotation shaft is a non-output end; the output end of the rotation shat is projected out of the housing through the output end; an electric installation heat radiation cavity is formed on the output end of the housing; the height of the electric installation heat radiation cavity is extending along the axial direction of the rotation shat; the rotation shaft has a rotation shaft extension part for matching with the extension of the electric installation heat radiation cavity; and the frequency conversion module is positioned in the electric installation heat radiation cavity. The variable frequency motor reduces the integral volume of the variable frequency motor and improves the integration degree and the reliability of the variable frequency motor.
Description
Technical field
The present invention relates to technical field of motors, particularly relate to a kind of variable-frequency motor and water system.
Background technology
At present, motor is widely used in people's daily life and industrial production, and motor is substantially all adopt general-purpose machine Technical Design to make, because operating condition can cause motor operational efficiency and service efficiency greatly to reduce with not mating of design condition.In order to solve the problem, motor is usually equipped with frequency-variable module and carries out speed regulating control, and the pattern of variable-frequency motor occurs, and this pattern instead of traditional mechanical speed governors and the scheme of DC speed regulation gradually with its outstanding control advantage, the broad scope of application.
But variable-frequency motor of the prior art needs motor additional configuration control cubicle to be installed to the control assemblies such as frequency-variable module to meet the cooling requirements of the assemblies such as frequency-variable module, control cubicle makes variable-frequency motor overall volume of the prior art comparatively large and integrated level is lower; Further, when mounted, need motor to be connected with control cubicle by external connection, install wiring complexity, and external connection exposes, in variable-frequency motor use procedure, fault point is more.As from the foregoing, the volume of variable-frequency motor of the prior art is comparatively large, integrated level is lower and reliability is lower.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of variable-frequency motor and water system, in solution prior art, the body of variable-frequency motor is comparatively large, integrated level is low and the defect that reliability is poor, realize the overall volume reducing variable-frequency motor, improve integrated level and the reliability of variable-frequency motor.
Technical scheme provided by the invention is, a kind of variable-frequency motor, comprise shell, stator, rotor and frequency-variable module, described shell has main cavity, described stator and described rotor are arranged in described main cavity, described rotor has rotating shaft, one end of described shell is output end, the other end of described shell is non-output end, one end of described rotating shaft is output, the other end of described rotating shaft is non-output, the output of described rotating shaft stretches out the output end of described shell, the output end of described shell is formed with the electrical install heat-dissipating cavity independent of described main cavity, the height of described electrical install heat-dissipating cavity extends along the axis direction of described rotating shaft, described rotating shaft has the rotating shaft extension for coordinating described electrical install heat-dissipating cavity to extend, described frequency-variable module is arranged in described electrical install heat-dissipating cavity.
Further, the output end of described shell has output end cap, described output covers the wall body with evagination, described wall body is also provided with heat-dissipating cover plate, form described electrical install heat-dissipating cavity between described output end cap and described heat-dissipating cover plate, described frequency-variable module is fixed on described heat-dissipating cover plate.
Further, the output end of described shell has output end cap, described output covers and is also provided with heat-dissipating cover plate, the periphery of described heat-dissipating cover plate has annular flange, described annular flange is fixed on described output and covers, form described electrical install heat-dissipating cavity between described output end cap and described heat-dissipating cover plate, described frequency-variable module is fixed on described heat-dissipating cover plate.
Further, described heat-dissipating cover plate is provided with through hole, described rotating shaft runs through described through hole, described heat-dissipating cover plate is formed with multi-disc radiating fin, described radiating fin is radially arranged around described through hole, radiating fin described in multi-disc is around formation installing space, and the output of described rotating shaft is also fixedly installed radiator fan, and described radiator fan is arranged in described installing space.
Further, also power panel is installed in described electrical install heat-dissipating cavity; Described shell is also provided with terminal box, and described set of terminal box has manipulation display and junction block.
The present invention also provides a kind of variable-frequency motor, comprise shell, stator, rotor, electric motor fan and frequency-variable module, described shell has main cavity, described stator and described rotor are arranged in described main cavity, described rotor has rotating shaft, one end of described shell is output end, the other end of described shell is non-output end, one end of described rotating shaft is output, the other end of described rotating shaft is non-output, the non-output of described rotating shaft stretches out the non-output end of described shell, described electric motor fan is fixed on the non-output of described rotating shaft, it is characterized in that, the non-output end of described shell is formed with the electrical install heat-dissipating cavity independent of described main cavity, the height of described electrical install heat-dissipating cavity extends along the axis direction of described rotating shaft, described rotating shaft has the rotating shaft extension for coordinating described electrical install heat-dissipating cavity to extend, described frequency-variable module is arranged in described electrical install heat-dissipating cavity.
Further, the non-output end of described shell has non-output end cap, described non-output covers the wall body with evagination, described wall body is also provided with heat-dissipating cover plate, form described electrical install heat-dissipating cavity between described non-output end cap and described heat-dissipating cover plate, described frequency-variable module is fixed on described heat-dissipating cover plate.
Further, the non-output end of described shell has non-output end cap, described non-output covers and is also provided with heat-dissipating cover plate, the periphery of described heat-dissipating cover plate has annular flange, the non-output that described annular flange is fixed on described shell covers, form described electrical install heat-dissipating cavity between described non-output end cap and described heat-dissipating cover plate, described frequency-variable module is fixed on described heat-dissipating cover plate.
Further, also power panel is installed in described electrical install heat-dissipating cavity; Described shell is also provided with terminal box, and described set of terminal box has manipulation display and junction block.
The present invention provides again a kind of water system, comprises water pump, also comprises above-mentioned variable-frequency motor, and described variable-frequency motor is connected with described water pump.
Compared with prior art, advantage of the present invention and good effect are: variable-frequency motor provided by the invention and water system, by forming electrical install heat-dissipating cavity on the shell of motor, frequency-variable module can be corresponding be arranged on electrical install heat-dissipating cavity, electrical install heat-dissipating cavity is on the one hand for being assembled in shell by integrated for frequency-variable module, electrical install heat-dissipating cavity is also for distributing the heat that frequency-variable module produces on the other hand, to meet the cooling requirements of frequency-variable module, and frequency-variable module is integrated in shell, the portion in the enclosure that realizes completes wiring and connects, and do not need to carry out in the outside of shell wiring, in use procedure, fault point is less, improve the reliability of variable-frequency motor, in addition, because rotating shaft forms the rotating shaft extension for coordinating electrical install heat-dissipating cavity to extend, electrical install heat-dissipating cavity by make full use of rotating shaft overhanging go out the space of shell to install the parts such as frequency-variable module, such that the overall volume of variable-frequency motor is compacter, integrated level is higher, effectively reduce the overall volume of variable-frequency motor.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the explosive view of variable-frequency motor embodiment one of the present invention;
Fig. 2 is the cutaway view of variable-frequency motor embodiment one of the present invention;
Fig. 3 is the close-up schematic view of a-quadrant in Fig. 2;
Fig. 4 is the structural representation of heat-dissipating cover plate in variable-frequency motor embodiment one of the present invention;
Fig. 5 is the explosive view of variable-frequency motor embodiment two of the present invention;
Fig. 6 is the cutaway view of variable-frequency motor embodiment two of the present invention;
Fig. 7 is the structural representation of heat-dissipating cover plate in variable-frequency motor embodiment two of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
A kind of variable-frequency motor provided by the invention, comprise the parts such as shell, stator, rotor and electric motor fan, rotor has rotating shaft, wherein, stators and rotators is arranged in the main cavity of shell, and an end of shell will be formed with the electrical install heat-dissipating cavity for installing frequency-variable module, and installation cavity and main cavity are separated, can avoid in stators and rotators running, the impact such as electromagnetic interference or heat radiation is produced on the electric component installed in cavity.The height of this electrical install heat-dissipating cavity extends along the axis direction of rotating shaft, and rotating shaft has the rotating shaft extension for coordinating electrical install heat-dissipating cavity to extend.Concrete, electrical install heat-dissipating cavity can be formed in the output end of shell, also the non-output end of shell can be formed in, and it is corresponding, relative to the motor of same specification in prior art, the rotating shaft of variable-frequency motor provided by the invention has rotating shaft extension, and the space utilizing the increase of rotating shaft extension to go out forms electrical install heat-dissipating cavity, and electrical install heat-dissipating cavity forms lap perpendicular to the projection on shaft axis direction and between rotating shaft extension.For motor of the prior art, the part that shell is stretched out in rotating shaft inherently occupies larger space, and, stretch out space that the rotating shaft outside shell takies in actual use, the part of next-door neighbour motor housing end be do not make full use of idle.Variable-frequency motor provided by the invention can make full use of the idle space shared by outer side rotating shaft, and, only need to increase shorter rotating shaft extension, and obtain the electrical install heat-dissipating cavity of larger volume, because electrical install heat-dissipating cavity can make full use of the surface area of outer casing end, thus realize extending the shorter distance of rotating shaft, but obtain larger electrical install heat-dissipating cavity, with the function of satisfied installation frequency-variable module, realize the maximization of integrated level.Below for the diverse location of electrical install heat-dissipating cavity, in conjunction with the accompanying drawings.
Embodiment one
As Figure 1-Figure 4, the present embodiment variable-frequency motor, comprise shell 1, stator 2, rotor 3, frequency-variable module 5 and electric motor fan 6, stator 2 and rotor 3 are arranged in shell 1, rotor 3 has rotating shaft 31, one end of shell 1 has output end cap 11, the other end of shell 1 has non-output end cap 12, one end of rotating shaft 31 is output 311, the other end of rotating shaft 31 is non-output 312, the output 311 of rotating shaft 31 stretches out the output end cap 11 of shell 1, the non-output 312 of rotating shaft 31 stretches out the non-output end cap 12 of shell 1, electric motor fan 6 is fixed on the non-output 312 of rotating shaft 31, and, electric motor fan 6 is covered in by fan housing 61.Wherein, in order to frequency-variable module 5 is highly integrated on shell 1, and meet cooling requirements simultaneously, the output end cap 11 of shell 1 forms electrical install heat-dissipating cavity 110, the output 311 of rotating shaft 31 is positioned at the extension of the part formation rotating shaft 31 of electrical install heat-dissipating cavity 110, the output 311 of rotating shaft 31 is through electrical install heat-dissipating cavity 110, and frequency-variable module 5 is arranged in electrical install heat-dissipating cavity 110.Export end cap 11 and offer wire hole 112, the connecting line of frequency-variable module 5 is connected with stator 2 from shell 1 inside through wire hole 112.
Specifically, the present embodiment variable-frequency motor passes through frequency-variable module 5 integrated installation in electrical install heat-dissipating cavity 110, electrical install heat-dissipating cavity 110 can meet the cooling requirements to frequency-variable module 5, and, because frequency-variable module 5 is arranged in electrical install heat-dissipating cavity 110, connecting line between frequency-variable module 5 and stator 2 is arranged in shell 1, avoids and to carry out line in shell 1 outside and the higher phenomenon of causing trouble rate occurs, improve the operational reliability of the present embodiment variable-frequency motor.Wherein, because the output 311 of rotating shaft 31 is through electrical install heat-dissipating cavity 110, the space that electrical install heat-dissipating cavity 110 will make full use of shared by rotating shaft 31, makes the overall structure of the present embodiment variable-frequency motor compacter; Simultaneously, because electrical install cavity 110 can make full use of the surface area exporting end cap 11, thus realize extending the shorter distance of rotating shaft 31, but obtain larger electrical install cavity 110, with the function of the different electric component of satisfied installation, realize the maximization of integrated level.In addition, in electrical install heat-dissipating cavity 110, power panel 9 is also installed; And shell 1 is also provided with terminal box 4, be provided with manipulation display 41 and junction block 42 in terminal box 4.Concrete, power panel 9 is connected with extraneous supply lines by junction block 42, power panel 9 is connected with frequency-variable module 5 and is used for powering, and manipulate display 41 and be connected with the controller of motor and for operating personnel, the present embodiment variable-frequency motor controlled, junction block 42 for being connected with externally fed line and order wire, to simplify the external connection quantity of the present embodiment variable-frequency motor.Stator 2 is also provided with temperature sensor 21, and temperature sensor 21 is also connected from the inside of shell 1 and the controller of motor, and shows the temperature of motor by manipulation display 41.And frequency-variable module 5 also can be arranged in electrical install heat-dissipating cavity 110 in the mode of frequency modulation mainboard.
Further, in order to improve the heat dispersion of electrical install heat-dissipating cavity 110, the output end cap 11 of shell 1 is provided with heat-dissipating cover plate 7, electrical install heat-dissipating cavity 110 is formed between heat-dissipating cover plate 7 and output end cap 11, wherein, the generation type of electrical install heat-dissipating cavity 110 can have multiple, such as: the wall body 111 output end cap 11 of shell 1 being provided with evagination, heat-dissipating cover plate 7 covers in wall body 111 to form electrical install heat-dissipating cavity 110, wherein, wall body 111 can be wall body, the electrical install heat-dissipating cavity 110 closed is formed to make wall body 111 and end cap 11, or heat-dissipating cover plate 7 periphery forms annular flange, annular flange is fixed on and exports to form electrical install heat-dissipating cavity 110 on end cap 11, and the present embodiment does not limit the concrete generation type of electrical install heat-dissipating cavity 110.Frequency-variable module 5 is fixed on heat-dissipating cover plate 7, and heat-dissipating cover plate 7 is provided with through hole 71, and rotating shaft 31 runs through through hole 71.Concrete, heat-dissipating cover plate 7 adopts excellent heat conductivity material to make, and such as: the material such as aluminium or copper, the heat that frequency-variable module 5 produces directly passes through heat-dissipating cover plate 7 Quick diffusing to outside, the area of dissipation of heat-dissipating cover plate 7 is comparatively large, can be good at the cooling requirements meeting frequency-variable module 5.Preferably, the output 311 of rotating shaft 31 is also fixedly installed radiator fan 8, and radiator fan 8 is positioned at the side of heat-dissipating cover plate 7.Concrete, in rotating shaft 31 rotation process, will radiator fan 8 be driven to rotate, radiator fan 8 to heat-dissipating cover plate 7 quenching, thus will improve the heat dispersion of heat-dissipating cover plate 7 simultaneously; In addition, radiator fan 8 is directly fixed on rotating shaft 31, is rotated by rotating shaft 31 Direct driver radiator fan 8, and without the need to adopting extra dynamical element, make overall structure compacter and effectively reduce energy consumption to improve heat dispersion, guarantee that frequency-variable module 5 runs reliably.And heat-dissipating cover plate 7 being formed with multi-disc radiating fin 72, radiating fin 72 effectively can increase the area of dissipation of heat-dissipating cover plate 7 to improve heat dispersion.Wherein, radiating fin 72 is radially arranged around through hole 71, and multi-disc radiating fin 72 is around formation installing space 70, and radiator fan 8 is arranged in installing space 70.Concrete, by radiator fan 8 is arranged in installing space 70, on the one hand, radiator fan 8 is surrounded by radiating fin 72, the air-flow that radiator fan 8 produces can flow through the surface of radiating fin 72 fully, to improve radiating efficiency, on the other hand, radiator fan 8 is surrounded by radiating fin 72, the space of rotating shaft 31 axis can be utilized fully, improve space availability ratio, make the floor space that compact overall structure, volume are little, lightweight, substantially reduce equipment, improve the degree of protection of equipment simultaneously.
Further, electrical install heat-dissipating cavity 110 is provided with air inlet 1101, forms air outlet 1102 between through hole 71 and rotating shaft 31.Concrete, in radiator fan 8 running, cool ambient air enters into electrical install heat-dissipating cavity 110 from air inlet 1101 and dispels the heat to the electric elements in electrical install heat-dissipating cavity 110, and the air after heat exchange exports from air outlet 1102.Preferably, radiator fan 8 has multi-disc and is arranged on blade 81 in rotating shaft 31, and blade 81 31 is radially arranged around the shaft; The height of blade 31 outer end is greater than the height of blade 31 inner end.Concrete, blade 31 is set to the version that exterior end surface amasss greatly and the surface area of inner end is little, make blade 31 when following rotating shaft 31 and rotating, pectinid area outside blade 31 is large and the pectinid area of inner side is little, thus form negative pressure at blade 31 near rotating shaft 31 place, under the effect of negative pressure, will speed up the air flow amount between air inlet 1101 and air outlet 1102, air flow process is as follows: under the effect of radiator fan 8, the position that installing space 70 is positioned at air outlet 1102 forms negative pressure, air in electrical install heat-dissipating cavity 110 from air outlet 1102 sucking-off and between radiating fin 72 gap radial direction discharge, external wind enters into electrical install heat-dissipating cavity 110 from air inlet 1101, thus can more effective raising radiating efficiency.
Embodiment two
As shown in Figure 5-Figure 7, the present embodiment variable-frequency motor, comprise shell 1, stator 2, rotor 3, frequency-variable module 5 and electric motor fan 6, stator 2 and rotor 3 are arranged in shell 1, rotor 3 has rotating shaft 31, one end of shell 1 has output end cap 11, the other end of shell 1 has non-output end cap 12, one end of rotating shaft 31 is output 311, the other end of rotating shaft 31 is non-output 312, the output 311 of rotating shaft 31 stretches out the output end cap 11 of shell 1, the non-output 312 of rotating shaft 31 stretches out the non-output end cap 12 of shell 1, electric motor fan 6 is fixed on the non-output 312 of rotating shaft 31, and, electric motor fan 6 is covered in by fan housing 61.Wherein, in order to frequency-variable module 5 is highly integrated on shell 1, and meet cooling requirements simultaneously, the non-output end cap 12 of shell 1 forms electrical install heat-dissipating cavity (not shown), the non-output 312 of rotating shaft 31 is through electrical install heat-dissipating cavity, the non-output 312 of rotating shaft 31 is positioned at the extension of the part formation rotating shaft 31 of electrical install heat-dissipating cavity, and frequency-variable module 5 is arranged in electrical install heat-dissipating cavity.Non-output end cap 121 offers wire hole (not shown), and the connecting line of frequency-variable module 5 is connected with stator 2 from shell 1 inside through wire hole.
Specifically, the present embodiment variable-frequency motor passes through frequency-variable module 5 integrated installation in electrical install heat-dissipating cavity, electrical install heat-dissipating cavity can meet the cooling requirements to frequency-variable module 5, and, because frequency-variable module 5 is arranged in electrical install heat-dissipating cavity, connecting line between frequency-variable module 5 and stator 2 is arranged in shell 1, avoids and to carry out line in shell 1 outside and the higher phenomenon of causing trouble rate occurs, improve the operational reliability of the present embodiment variable-frequency motor.Wherein, because the non-output 312 of rotating shaft 31 is through electrical install heat-dissipating cavity, the space that electrical install heat-dissipating cavity will make full use of shared by rotating shaft 31, makes the overall structure of the present embodiment variable-frequency motor compacter; Meanwhile, because electrical install cavity can make full use of the surface area of non-output 312, thus realize extending the shorter distance of rotating shaft 31, but obtain larger electrical install cavity, with the function of the different electric component of satisfied installation, realize the maximization of integrated level.In addition, in electrical install heat-dissipating cavity, power panel 9 is also installed; And shell 1 is also provided with terminal box 4, be provided with manipulation display 41 and junction block 42 in terminal box 4.Concrete, power panel 9 is connected with frequency-variable module 5 and is used for powering, and manipulate display 41 and be connected with frequency-variable module 5 and for operating personnel, the present embodiment variable-frequency motor controlled, junction block 42 for being connected with externally fed line and order wire, to simplify the external connection quantity of the present embodiment variable-frequency motor.Stator 2 is also provided with temperature sensor 21, and temperature sensor 21 is also connected from the inside of shell 1 with manipulation display 41.
Further, in order to improve the heat dispersion of electrical install heat-dissipating cavity, the non-output end cap 12 of shell 1 is provided with heat-dissipating cover plate 7, electrical install heat-dissipating cavity is formed between heat-dissipating cover plate 7 and non-output end cap 12, wherein, the generation type of electrical install heat-dissipating cavity can have multiple, and such as: the wall body 121 non-output end cap 12 of shell 1 being provided with evagination, heat-dissipating cover plate 7 covers in wall body 121 to form electrical install heat-dissipating cavity; Or heat-dissipating cover plate 7 periphery forms annular flange, annular flange is fixed on to form electrical install heat-dissipating cavity on non-output end cap 12, and the present embodiment does not limit the concrete generation type of electrical install heat-dissipating cavity.Frequency-variable module 5 is fixed on heat-dissipating cover plate 7, and heat-dissipating cover plate 7 is provided with through hole (not shown), and rotating shaft 31 runs through through hole.Concrete, heat-dissipating cover plate 7 adopts excellent heat conductivity material to make, and such as: the material such as aluminium or copper, the heat that frequency-variable module 5 produces directly passes through heat-dissipating cover plate 7 Quick diffusing to outside, the area of dissipation of heat-dissipating cover plate 7 is comparatively large, can be good at the cooling requirements meeting frequency-variable module 5.Preferably, heat-dissipating cover plate 7 is formed with multi-disc radiating fin 72, radiating fin 72 is radially arranged around through hole, and outside air blows to heat-dissipating cover plate 7 via electric motor fan 6 and carries out dispelling the heat and flow on shell 1 via radiating fin 72 and carry out motor radiating.And in order to reduced volume to greatest extent, make overall structure compacter, radiating fin 72 is around the dished installing space of through hole shape, and electric motor fan is arranged in installing space, improve space availability ratio, make the floor space that compact overall structure, volume are little, lightweight, substantially reduce equipment, improve the degree of protection of equipment simultaneously.
Further, the periphery of heat-dissipating cover plate 7 has turnup structure 71, heat-dissipating cover plate 7 is fixed on wall body 121 by turnup structure 71, and turnup structure 71 is formed with the air inlet 711 and air outlet (not shown) that are communicated with electrical install heat-dissipating cavity, air outlet is provided with cooling fan 712.Concrete, air inlet 711 and air outlet are oppositely arranged, outside air enters into electrical install heat-dissipating cavity Radial Flow from air inlet 711 and discharges from air outlet, air blast cooling is carried out by increasing cooling fan 712 pairs of electrical install heat-dissipating cavity inside, can more effective raising radiating efficiency, and cooling fan 712 directly can be connected with power panel 9 by inner cabling and to power.
In addition, the present invention provides again a kind of water system, comprises water pump, and also comprise above-mentioned variable-frequency motor, variable-frequency motor is connected with water pump.
Variable-frequency motor provided by the invention and water system, by forming electrical install heat-dissipating cavity on the shell of motor, frequency-variable module can be corresponding be arranged on electrical install heat-dissipating cavity, electrical install heat-dissipating cavity is on the one hand for being assembled in shell by integrated for frequency-variable module, electrical install heat-dissipating cavity is also for distributing the heat that frequency-variable module produces on the other hand, to meet the cooling requirements of frequency-variable module, and frequency-variable module is integrated in shell, the portion in the enclosure that realizes completes wiring and connects, and do not need the wiring of carrying out in the outside of shell, in use procedure, fault point is less, improve the reliability of variable-frequency motor, in addition, because rotating shaft forms the rotating shaft extension for coordinating electrical install heat-dissipating cavity to extend, electrical install heat-dissipating cavity by make full use of rotating shaft overhanging go out the space of shell to install the parts such as frequency-variable module, such that the overall volume of variable-frequency motor is compacter, integrated level is higher, effectively reduce the overall volume of variable-frequency motor.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a variable-frequency motor, comprise shell, stator, rotor and frequency-variable module, described shell has main cavity, described stator and described rotor are arranged in described main cavity, described rotor has rotating shaft, one end of described shell is output end, the other end of described shell is non-output end, one end of described rotating shaft is output, the other end of described rotating shaft is non-output, the output of described rotating shaft stretches out the output end of described shell, it is characterized in that, the output end of described shell is formed with the electrical install heat-dissipating cavity independent of described main cavity, the height of described electrical install heat-dissipating cavity extends along the axis direction of described rotating shaft, described rotating shaft has the rotating shaft extension for coordinating described electrical install heat-dissipating cavity to extend, described frequency-variable module is arranged in described electrical install heat-dissipating cavity.
2. variable-frequency motor according to claim 1, it is characterized in that, the output end of described shell has output end cap, described output covers the wall body with evagination, described wall body is also provided with heat-dissipating cover plate, form described electrical install heat-dissipating cavity between described output end cap and described heat-dissipating cover plate, described frequency-variable module is fixed on described heat-dissipating cover plate.
3. variable-frequency motor according to claim 1, it is characterized in that, the output end of described shell has output end cap, described output covers and is also provided with heat-dissipating cover plate, the periphery of described heat-dissipating cover plate has annular flange, described annular flange is fixed on described output and covers, and form described electrical install heat-dissipating cavity between described output end cap and described heat-dissipating cover plate, described frequency-variable module is fixed on described heat-dissipating cover plate.
4. the variable-frequency motor according to Claims 2 or 3, it is characterized in that, described heat-dissipating cover plate is provided with through hole, described rotating shaft runs through described through hole, described heat-dissipating cover plate is formed with multi-disc radiating fin, described radiating fin is radially arranged around described through hole, and radiating fin described in multi-disc is around formation installing space, the output of described rotating shaft is also fixedly installed radiator fan, and described radiator fan is arranged in described installing space.
5. variable-frequency motor according to claim 1, is characterized in that, is also provided with power panel in described electrical install heat-dissipating cavity; Described shell is also provided with terminal box, and described set of terminal box has manipulation display and junction block.
6. a variable-frequency motor, comprise shell, stator, rotor, electric motor fan and frequency-variable module, described shell has main cavity, described stator and described rotor are arranged in described main cavity, described rotor has rotating shaft, one end of described shell is output end, the other end of described shell is non-output end, one end of described rotating shaft is output, the other end of described rotating shaft is non-output, the non-output of described rotating shaft stretches out the non-output end of described shell, described electric motor fan is fixed on the non-output of described rotating shaft, it is characterized in that, the non-output end of described shell is formed with the electrical install heat-dissipating cavity independent of described main cavity, the height of described electrical install heat-dissipating cavity extends along the axis direction of described rotating shaft, described rotating shaft has the rotating shaft extension for coordinating described electrical install heat-dissipating cavity to extend, described frequency-variable module is arranged in described electrical install heat-dissipating cavity.
7. variable-frequency motor according to claim 6, it is characterized in that, the non-output end of described shell has non-output end cap, described non-output covers the wall body with evagination, described wall body is also provided with heat-dissipating cover plate, form described electrical install heat-dissipating cavity between described non-output end cap and described heat-dissipating cover plate, described frequency-variable module is fixed on described heat-dissipating cover plate.
8. variable-frequency motor according to claim 6, it is characterized in that, the non-output end of described shell has non-output end cap, described non-output covers and is also provided with heat-dissipating cover plate, the periphery of described heat-dissipating cover plate has annular flange, the non-output that described annular flange is fixed on described shell covers, and form described electrical install heat-dissipating cavity between described non-output end cap and described heat-dissipating cover plate, described frequency-variable module is fixed on described heat-dissipating cover plate.
9. variable-frequency motor according to claim 6, is characterized in that, is also provided with power panel in described electrical install heat-dissipating cavity; Described shell is also provided with terminal box, and described set of terminal box has manipulation display and junction block.
10. a water system, comprises water pump, it is characterized in that, also comprise as arbitrary in claim 1-9 as described in variable-frequency motor, described variable-frequency motor is connected with described water pump.
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| CN201510370992.1A CN104967243B (en) | 2015-06-30 | 2015-06-30 | A kind of variable-frequency motor and water system |
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| CN201510370992.1A CN104967243B (en) | 2015-06-30 | 2015-06-30 | A kind of variable-frequency motor and water system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5996209A (en) * | 1997-01-30 | 1999-12-07 | General Electric Company | Method of manufacturing a dynamoelectric machine |
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| CN102244423A (en) * | 2010-05-13 | 2011-11-16 | 德昌电机(深圳)有限公司 | Motor |
| CN103502081A (en) * | 2011-05-11 | 2014-01-08 | 三菱电机株式会社 | Electric power steering device |
| CN103718430A (en) * | 2011-07-08 | 2014-04-09 | 汉宁电气工厂有限责任两合公司 | Electric motor |
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| CN104967243B (en) | 2018-02-23 |
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