CN208656611U

CN208656611U - A kind of brshless DC motor for dust catcher

Info

Publication number: CN208656611U
Application number: CN201820895639.4U
Authority: CN
Inventors: 鲍真
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-06-12
Filing date: 2018-06-12
Publication date: 2019-03-26
Anticipated expiration: 2028-06-12

Abstract

The utility model discloses a kind of brshless DC motor for dust catcher, including successively fits together: fan housing, movable vane wheel, integrated rack, rotor assembly, stator module, fixing screws, control circuit board.The rotor assembly passes through stator module center, bearing end on rotor assembly is inserted into the core barrel of integrated rack, magnet ring on rotor assembly is concordant with stator core, the other end of rotor assembly connects movable vane wheel, 3 screws are fixed on stator module in integrated rack, and fan housing is placed on the integrated stander end of dynamic impeller outer.The utility model uses novel simple assembling structure, mainly the casing in conventional motors, end cap and inducer height is integrated, size can reduce, and performance is constant, good economy performance；Without rack beam structure, runner is unblocked, and low noise dust collection efficiency is high；Part is reduced, and structure is simple, easy for installation, high production efficiency；More compact structure, potential failure rate is lower, reliable in quality.

Description

A kind of brshless DC motor for dust catcher

Technical field

The utility model relates to brshless DC motor fields, and in particular to a kind of DC brushless motor for dust catcher.

Background technique

Due to brushlessDirect current generatorHave many advantages, such as high-efficient, the service life is long, easy speed regulation and be widely used by numerous areas, from Since using dust catcher from brshless DC motor and invented effective cordless dust catcher, global wireless dust suction has been started immediately Device uses tide, but present price is high, belongs to luxury goods, is unable to popularity.Brshless DC motor is by main body and driver Composition, is a kind of typical electromechanical integrated product, practicability novel brushless motor is and electronic technology, microelectric technique, number What the development such as word technology, automatic control technology and material science were closely connected.It is not limited only to alternating current-direct current field, further relate to it is electronic, The fields such as the energy conversion of power generation and sensing.For in dust catcher brushless motor field, for the effect for pursuing high suction, Unique high revolving speed requirement is made it have, the design of brushless motor is at 70000 revs/min or more, and even higher, this is just to motor Required at both mechanically and electrically aspect higher, cost is also higher, in the market reliable performance and cheap seldom.As the country is invented Patent CN106849412A electric machine structure still more traditional package assembly, cost is also very high, and supports the upper and lower side of rotor The traditional structural design of lid all has the crossbeam 2-3 root of connection bearing chamber, unfavorable to divulging information, and high speed winds are flowed through and can be generated Strong wind is made an uproar,

Therefore a kind of brushless motor structure for cleaner field is simple, reliable performance, low noise, cheap brushless Direct current generator urgently proposes.

Utility model content

To solve the above problems, the utility model provides a kind of brshless DC motor of highly integrated structure, not only valence Lattice are cheap, low noise and performance is more preferably.

In order to achieve the above objectives, the technical solution of the utility model is as follows:

A kind of brshless DC motor for dust catcher, including successively assemble: fan housing, movable vane wheel, integrated rack, rotor set Part, stator module, control panel.The rotor assembly passes through stator module center, and the bearing end on rotor assembly is inserted into one In the core barrel of rack, the magnet ring on rotor assembly is concordant with stator core, and the other end of rotor assembly connects movable vane wheel, stator It is fixed in integrated rack with 3 screws, fan housing is placed in the integrated rack of dynamic impeller outer.

Preferably, the integrated frame central is equipped with a core barrel, and smaller through-hole is arranged at bottom, turns with described Sub-component bearing portions set sticks together.

Preferably, two bearings of the rotor assembly are mounted in the same side of axis, wherein first bearing and second bearing Between have a certain distance in vain, two one metallic sheaths of bearing outside, bearing metal covers one, both ends bonding magnet ring, and other end connection is moved Impeller.

Preferably, the integrated rack periphery is equipped with multiple wedge-shaped hollow out wind guide tanks, plays the role of water conservancy diversion, each leads Wind groove is all connected with arched ribs and is connected with core barrel, plays the role of reinforcement structure.

Preferably, uniformly distributed 3 positioning columns, pillar center are equipped with tapped through hole, 3 columns by the integrated rack wind guide tank Transverse plane is equipped with half-moon-shaped guardrail on son, and the stator periphery is evenly distributed with 3 uniformly distributed screw holes, positions with integrated rack 3 Corresponding on pillar iron core, stator core rests on 3 positioning column upper ends, moves stator not by the positioning of half-moon-shaped guardrail, and by 3 It is fixed in integrated rack across iron core hole.

Preferably, the stator module has upper and lower stator skeleton to be sleeved on 3 pole shoes for stretching to stator core center On, while enameled wire loop is wound on 3 pole shoes, plastic skeleton isolation coil is contacted with iron core, and 3 winding terminals pass through stator The wire casing set on skeleton is snakelike to be coiled in slot, and control panel is lain on 3 branch pallets of stator skeleton, and winding the end of a thread passes through 3 apertures of control circuit board, the fixed control circuit board of soldering.

Preferably, the integrated rack can use aluminium alloy, magnesium alloy, engineering plastics and thermosetting plastics production.

Preferably, the integrated rack is due to being integrated with the end cap up and down of conventional motors, inducer, casing in one, Ventilation and heat is good high-efficient, and base size and same model can reduce a grade, fan housing, fan blade, outside stator core through Reduce 10-20%

It is using the beneficial effect of the technical program:

1. size reduces by a specification, and performance is constant, cheap good economy performance since design structure integrated level is high；

2. integrated rack is without rack beam, air permeability is good, the low 1-2dbA of noise ratio similar product；

3. structure runner is unblocked, dust collection efficiency has reached highest in the industry up to 56%.

4, part is reduced, and structure is simple, easy for installation, high production efficiency；

5, size can be made more compact after integrating, and potential failure rate is lower, and quality is more reliable.

Detailed description of the invention

Fig. 1: the structural exploded view of the utility model.

Fig. 2: the previous domestic patent of mesh is used for dust catcher brushless motor structure exploded view

Fig. 3: the structural upright schematic diagram of integrated rack.

Fig. 4: the cut-away view of integrated rack.

Fig. 5: the cut-away view of rotor assembly.

Fig. 6: the stereoscopic schematic diagram of stator module.

Fig. 7: the top view of stator module.

The title that number represents in figure: 1. fan housing, 2. movable vane wheel, 3. end cap, 4. stator module, 5. bracket, 6. control line 13. positioning column of integrated rack 11. wind guide tank, 12. core barrel of 7. rotor assembly of road plate, 8. bearing 10., 14. positioning screw hole 15, half a month guardrail 16. wind loop, 21. inducer, 40. stator core, 41. enameled wire loop, 42. stator skeleton, 43. skeletons are embedding 44. 73. magnet ring of skeleton branch pallet 45. stator core fixation hole, 71. shaft, 72. bearing holder (housing, cover) of wire casing, 93. fixing screws

Specific embodiment

The utility model discloses a kind of novel concept structures to be applied on dust catcher brshless DC motor, following example It is described in detail in conjunction with being specifically illustrating.

As shown in Figure 1, being the case decomposition figure of the utility model, diagram 2 show the country of the publicity of similar structures Patent CN106849412A case decomposition figure, both comparisons can significantly find out that the utility model is fewer than existing patent Inducer 21, end cap 3 are that there are also the innovation of 5. the utility model of bracket and are integrated into 1 this 3, that is, all-in-one machine Frame 10 is completely to describe below.

As shown in Figure 1, being the structural exploded view of the utility model, including successively assemble: fan housing 1, movable vane wheel 2, all-in-one machine Frame 10, rotor assembly 7, stator module 4, fixing screws 93, control circuit board 6.The rotor assembly 7 passes through stator module 4 Center, 72 end of bearing holder (housing, cover) on rotor assembly 7 are inserted into the core barrel 12 of integrated rack, magnet ring 73 on rotor assembly 7 and fixed Sub- iron core 40 is concordant, and the other end of rotor assembly 7 connects movable vane wheel 2, and stator fixing screws 93 are fixed in integrated rack 10, Fan housing 1 is placed in the integrated rack 10 below movable vane wheel 2.

Further, as Fig. 3 is integrated the perspective view of rack 10, Fig. 4 is the cross-sectional view of integrated rack, is clearly showed that inside it Structure, integrated 10 periphery hollow out of rack 9 wedge-shaped wind guide tanks 11, plays the role of water conservancy diversion, each wind guide tank 11 is connected with arc Muscle is connected with core barrel 12, plays the role of reinforcement structure, uniformly distributed 3 positioning columns 13 by wind guide tank 11, pillar center is equipped with fixed Transverse plane is equipped with half-moon-shaped guardrail 15 on 14,3 pillars of screw hole of position, and the back side is equipped with a circle wind loop 16, and the bottom of movable vane wheel 2 is flat Face is concordant with wind loop side, can effectively prevent outlet air and blows to dynamic wheel bottom generation turbulent flow, influences efficiency, the stator periphery Uniformly distributed 3 stator core fixation holes, corresponding with the positioning screw hole 14 in integrated rack 10, stator core rests on positioning column 13 End, positions stator by half-moon-shaped guardrail, and be fixed in integrated rack by 3 fixing screws 93.

Further, as shown in figure 5, being the cut-away view of rotor assembly 7, two bearings are loaded on one side, also facilitate electric machine structure It is integrated, illustrate two bearings 8 together in a bearing holder (housing, cover) 72, leave one end distance between two bearings, the purpose is to The torque of dispensing support point, magnet ring 73 is smaller closer to the torque that bearing end generates, more advantageous to bearing, and what this case was set only has 1mm distance, getting into smooth, it is atomic to vibrate, and can also play the vibration for offsetting magnet ring rotation when the operating of bearing other end movable vane wheel 2 Effect.

Further, as shown in fig. 6, being the stereoscopic schematic diagram of stator module, Fig. 7 is the top view of stator module, described Stator module 4 has upper and lower stator skeleton 42 to be sleeved on 3 and stretches on the pole shoe at stator core center, at the same on 3 pole shoes around There is enameled wire loop 41, plastic skeleton 42 completely cuts off coil 41 and contacts with stator core 40, and 3 winding terminals pass through stator skeleton 42 The skeleton wire casing 43 of upper setting is snakelike to be coiled in slot, and control circuit board 6 lies in 3 skeleton branch pallets 44 of stator skeleton On, winding the end of a thread passes through 3 apertures of control circuit board, the fixed control circuit board 6 of soldering.

Produce needs in enormous quantities to meet, the integrated rack can disposably be molded production with alloy or plastics, due to The innovation effect of the utility model is obvious, and present case can reduce a grade, fan housing, wind using base size and same model Leaf, stator core is outer to be reduced 15%, and stator core selects ф 40mm outer diameter, and fan housing outer diameter ф 52mm is realized DC25.2V, power 350W, splendid effect of the dust collection efficiency up to 56%

Above-described is only one kind of the preferred embodiment of the utility model, for repairing in claim limited range Change or equivalence replacement and the technical solution that is formed, also belongs in the protection scope of the utility model.

Claims

1. a kind of brshless DC motor for dust catcher, including successively fit together: fan housing, integrated rack, turns movable vane wheel Sub-component, stator module, control panel, which is characterized in that the rotor assembly is on stator module center, rotor assembly Bearing end is inserted into the core barrel of integrated rack, and the magnet ring on rotor assembly is concordant with stator core, the other end of rotor assembly Movable vane wheel is connected, 3 screws are fixed on stator in integrated rack, and fan housing is placed in the integrated rack of dynamic impeller outer.

2. brshless DC motor according to claim 1, which is characterized in that the integrated frame central is equipped in one Smaller through-hole is arranged at heart bucket, bottom, sticks together with the rotor bearing part set.

3. brshless DC motor according to claim 2, which is characterized in that two bearings of the rotor assembly are mounted in The same side of axis wherein has a certain distance, two one metallic sheaths of bearing outside, bearing gold in vain between first bearing and second bearing Belong to set one, both ends bonding magnet ring, other end connects movable vane wheel.

4. brshless DC motor according to claim 3, which is characterized in that the integrated rack periphery is equipped with multiple wedges Shape wind guide tank plays the role of water conservancy diversion, and each wind guide tank is connected with arched ribs and is connected with core barrel, plays the work of reinforcement structure With.

5. brshless DC motor according to claim 4, which is characterized in that uniformly distributed 3 by the integrated rack wind guide tank Root positioning column, pillar center are equipped with tapped through hole, and transverse plane is equipped with half-moon-shaped guardrail, the stator periphery on 3 pillars Uniformly distributed 3 uniformly distributed screw holes, corresponding on 3 positioning pillar iron cores, stator core rests on 3 column upper ends, is made by half-moon-shaped guardrail Stator does not move, and is accurately positioned and is fixed in integrated rack by 3 across iron core hole.

6. brshless DC motor according to claim 5, which is characterized in that the stator module has upper and lower stator skeleton It is sleeved on 3 to stretch on the pole shoe at stator core center, while being wound with enameled wire loop on 3 pole shoes, plastic skeleton completely cuts off coil It is contacted with iron core, 3 winding terminals are coiled in slot by the way that the wire casing set on stator skeleton is snakelike, and control circuit board is laid flat On 3 branch pallets of stator skeleton, winding the end of a thread passes through 3 apertures of correspondence of control circuit board, the fixed control line plate of soldering.

7. brshless DC motor according to claim 6, which is characterized in that the integrated rack can use aluminium alloy, magnesium Alloy, engineering plastics and thermosetting plastics production.

8. brshless DC motor according to claim 1 or 4, which is characterized in that the integrated rack is passed due to integrated The end cap up and down of system motor, inducer, casing is in one, and ventilation and heat is good high-efficient, and base size can compared with same model 10-20% is reduced, i.e., can be reduced outside fan housing, fan blade, stator core.