CN207573148U - A kind of motor sealing structure and motor - Google Patents
A kind of motor sealing structure and motor Download PDFInfo
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- CN207573148U CN207573148U CN201721540040.0U CN201721540040U CN207573148U CN 207573148 U CN207573148 U CN 207573148U CN 201721540040 U CN201721540040 U CN 201721540040U CN 207573148 U CN207573148 U CN 207573148U
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Abstract
The utility model provides a kind of motor sealing structure and motor, the motor sealing structure include：Shaft (1)；Bearing (2), it is set in the shaft (1), and shaft shoulder structure is axially additionally provided with along the shaft so that cavity volume (4) is formed between the part of the bearing (2) and the shaft shoulder structure on the periphery wall of the shaft (1), with the bearing (2) corresponding position；Blade structure (3) is set in one end of the shaft (1), and the position of the bearing (2) is extended to along shaft (1) axis direction, and card is set into cavity volume (4).It can be sealed by the utility model by motor cooling with fan blade, so that blade structure is contacted with bearing inner race, with bearing inner race synchronous rotary, it is increased without sealing element, shaft and sealing element is prevented to be in direct contact, energy loss will not be generated, it solves the problems, such as to commonly use sealing means energy loss at present, ensure motor performance, improve efficiency, and simple in structure, it is easy to assembly, by normal press fitting；It is not further added by other parts, saves cost.
Description
Technical field
The utility model belongs to technical field of motors, and in particular to a kind of motor sealing structure and motor.
Background technology
Motor nearly all has utilization in all industries of modern society, either industry, agricultural, communications and transportation or family
Front yard is lived, and all be unable to do without motor, and the use scope of motor is so extensive so that and the requirement of its degree of protection is also not quite similar, by
The conversion of electricity and mechanical energy is accomplished that in motor, so when motor is in open space, the protective capacities of itself will
It is particularly important.
Motor is mainly made of parts such as engine base (casing), stator and rotor iron core, shaft, bearing, end caps, motor
Protection is primarily referred to as engine base (casing) between end cap, and shaft is between extraneous or shaft and bearing, the bearing of bearing and end cap
Sealing effect between room.Engine base (casing) and end cap are opposing stationary, by pressure or built-in sealing ring, add fluid sealant
Deng achievable.And for dynamic sealing as rotating shaft, generally using the close of felt, oil sealing, labyrinth type structure or extrusion pressing type
Seal etc., such sealing usually have following problem：
1. shaft is in direct contact with sealing element, energy loss can be caused, serious to influence motor performance, efficiency reduces；
2. the seal structure complex of labyrinth type, and using being limited, be only suitable under certain rotating speed；
3. the indoor sealing of the bearing of end cap needs bearing outer ring to coordinate extrusion pressing type sealing ring, bearing can be by Internal and external cycle
Shearing force, increase the ball and poppet pressure of bearing, be also easy to produce noise, and influence the service life of bearing；
4. increasing part, as oil sealing, sealing ring etc., cost is increased.
Due to motor of the prior art, there are shafts and sealing element to be in direct contact, and can cause energy loss, serious meeting
Motor performance is influenced, efficiency reduces；Seal structure complex, and using being limited, be only suitable under certain rotating speed；It is also easy to produce and makes an uproar
Sound, bearing life are low；Part is increased, increases the technical problems such as cost, therefore the utility model research and design goes out a kind of electricity
Secret seal structure and motor.
Utility model content
Therefore, the technical problem to be solved by the present invention is to overcome motor sealing structure of the prior art, there are energy
The defects of amount is lost, serious to influence motor performance, and efficiency reduces, so as to provide a kind of motor sealing structure and motor.
The utility model provides a kind of motor sealing structure, including：
Shaft；
Bearing is set in the shaft, and on the periphery wall of the shaft, with the corresponding position edge of the bearing
The shaft is axially additionally provided with shaft shoulder structure so that forms cavity volume between the part of the bearing and the shaft shoulder structure；
Blade structure is set in one end of the shaft, and the position of the bearing is extended to along shaft axis direction, and
Into in the cavity volume.
Preferably,
The blade structure card sets the length into the part between the bearing and the shaft along the axis direction
For 1.5mm-5.0mm.
Preferably,
The blade structure includes fan blade boss and blade, and it is convex that the fan blade boss includes fan blade boss hole, the fan blade
Platform is set in the one end of the shaft by the fan blade boss hole so that the fan blade boss can be driven by the shaft and
It is rotated.
Preferably,
The first flat bit architecture is provided on the periphery of the shaft, being provided on the inner wall of the fan blade boss hole can be with institute
State the second flat bit architecture that the described first flat bit architecture of shaft matches.
Preferably,
The inner wall of the fan blade boss hole is additionally provided with the circular bead surface extended along the axis direction, the shaft peripheral surface
Upper corresponding position is provided with shoulder, the circular bead surface can be mutually matched with the shoulder connect with complete shaft and
Axially position between fan blade boss.
Preferably,
It is additionally provided with step on the end peripheral surface of the fan blade boss, the step is inserted into the cavity volume,
Axial limiting is completed between the bearing.
Preferably,
The blade structure further includes wheel disc, and the wheel disc connection is arranged on the radial outside of the fan blade boss, multiple
The blade is arranged on the wheel disc and arranges along its circumferential direction.
Preferably,
Reinforcing rib is additionally provided on the wheel disc, one end of the reinforcing rib and the peripheral surface of the fan blade boss are fixed
Connection.
Preferably,
The reinforcing rib for it is multiple, its quantity is corresponding with the blade quantity, and along the wheel disc circumferential direction into
Row arrangement.
Preferably,
Further include end cap, the end cap is included in first part and the second part that the axis direction connects, first
Point be set in the radial outside of the bearing, second part is located at the radial outside of the shaft, the blade structure it is described
Fan blade boss is inserted into the position between the radially inner side of the second part of the end cap and the radial outside of the shaft.
Preferably,
It is interference fit between the inner wall of the fan blade boss hole and the periphery wall of shaft when including fan blade boss hole；
And/or when including fan blade boss, the bearing includes bearing inner race and bearing outer ring, and the fan blade boss
It is interference fit between bearing inner race,
And/or the bearing includes the first part of bearing inner race and bearing outer ring, the bearing outer ring and end cap
Between for interference fit；
And/or the bearing includes bearing inner race and bearing outer ring, coordinates between the bearing inner race and shaft for transition
Or clearance fit；
And/or the bearing is water-sealed bearing；
And/or the material of the blade structure is plastic material.
The utility model also provides a kind of motor, including rotor, stator, further includes aforementioned motor sealing structure.
A kind of motor sealing structure and motor provided by the utility model have the advantages that：
The motor sealing structure and motor of the utility model by blade structure, are set in one end of the shaft, and edge
Shaft axis direction extends to the position of the bearing, and card sets the radially inner side for entering the bearing, the radial direction of the shaft
Outside can be sealed so that blade structure is contacted with bearing inner race, synchronous with bearing inner race by motor cooling with fan blade
Rotation, is increased without sealing element, shaft and sealing element is prevented to be in direct contact, will not generate energy loss, solves at present often
The problem of with sealing means energy loss, ensures motor performance, improves efficiency, and simple in structure, easy to assembly, by positive normal pressure
Dress；It is not further added by other parts, saves cost.
Description of the drawings
Fig. 1 is the shape dimensional structure diagram of the motor of the utility model；
Fig. 2 is the sectional view of the motor sealing structure of the utility model；
Fig. 3 is the partial enlarged view of the part A of Fig. 2；
Fig. 4 is the partial enlarged view of the part B of Fig. 3；
Fig. 5 a are the front three-dimensional structure diagrams of the embodiment one of the blade structure of the utility model；
Fig. 5 b are the back side three-dimensional structure diagrams of the embodiment one of the blade structure of the utility model；
Fig. 5 c are the Facad structure figures of the embodiment one of the blade structure of the utility model；
Fig. 5 d are the side, sectional structure charts of the embodiment one of the blade structure of the utility model；
Fig. 6 is the assembly structure figure of the embodiment one of the blade structure of the utility model；
Fig. 7 a are the front three-dimensional structure diagrams of the embodiment two of the blade structure of the utility model；
Fig. 7 b are the back side three-dimensional structure diagrams of the embodiment two of the blade structure of the utility model；
Fig. 7 c are the partial enlargement structure charts of the C portion of Fig. 7 b；
Fig. 8 is the assembly structure figure of the embodiment two of the blade structure of the utility model.
Reference numeral is expressed as in figure：
1st, shaft；11st, shoulder；2nd, bearing；3rd, blade structure；31st, fan blade boss；310th, fan blade boss hole；311st, second
Flat bit architecture；312nd, circular bead surface；313rd, step；314th, shaft block ring；32nd, blade；33rd, wheel disc；4th, cavity volume；5th, reinforcing rib；6、
End cap；61st, drive end bearing bracket；62nd, rear end cap；7th, engine base；8th, terminal box；9th, stabilizer blade；10th, fan housing；101st, rotor core；102nd, it is fixed
Sub- iron core.
Specific embodiment
Referring to shown in Fig. 1-8, the utility model provides a kind of motor sealing structure, including：
Shaft 1；
Bearing 2 is set in the shaft 1, and on the periphery wall of the shaft 1, it is corresponding with the bearing 2
Position is axially further opened with shaft shoulder structure along the shaft so that is formed between the part of the bearing 2 and the shaft shoulder structure
Cavity volume 4；
Blade structure 3 is set in one end of the shaft 1, and the position of the bearing 2 is extended to along 1 axis direction of shaft
Put, and card is set into the cavity volume 4, i.e., card set the radially inner side into bearing 2, the shaft 1 radial outside position.
The utility model utilizes motor cooling fan, and the lengthening of fan boss is stretched to bearing inner race certain distance, is prevented
Outside water or dust enter, i.e., by blade structure, are set in one end of the shaft, and extend to institute along shaft axis direction
The position of bearing is stated, and card sets the radially inner side into the bearing, (i.e. card is set into shaft the radial outside of the shaft
In the cavity volume formed between the shaft shoulder structure and bearing that open up, as in Figure 2-4, which extends to most right with bearing
End by the first from left section position, do not extend to the left end of bearing so that bearing left end can be completed to support with shaft cooperation
It is sealed at effect, the cavity volume for accommodating blade structure insertion), it can be by the original cooling fan blade of motor to axis
It holds and is sealed between shaft so that blade structure is contacted with bearing inner race, with bearing inner race synchronous rotary, is increased without close
Sealing prevents shaft and sealing element to be in direct contact, and will not generate energy loss, solves common sealing means energy damage at present
The problem of mistake, ensures motor performance, improves efficiency, and simple in structure, easy to assembly, by normal press fitting；It is not further added by
Other parts save cost.
The fan blade sealing means that the utility model uses, using fan blade boss (i.e. fan blade boss 31), extend into bearing
Certain distance is enclosed, boss outer ring coordinates with bearing inner race transition or slight interference, and the bearing chamber of bearing outer ring and end cap is interference fitted,
Bearing uses water-sealed bearing, this sealing means can both ensure the degree of protection of motor, fan blade and bearing inner race synchronous rotary, again
Energy loss will not be caused, it is simple in structure, it is easy to assembly, other parts will not be caused to damage, without increasing new parts.
Fig. 1 is typical threephase asynchronous machine shape, and motor has various reactive loss in the process of running, these losses
It can be converted into thermal energy, the fan blade of motor tail portion is with rotor synchronous rotary, and the wind of generation is through fan housing along the cooling fin stream on engine base
It is dynamic, the heat to shed inside motor is taken away, to achieve the effect that electric motor temperature reduction.
Preferably,
The blade structure 3 blocks the length set into the part between the bearing 2 and the shaft 1 along the axis direction
It spends for 1.5mm-5.0mm (when the utility model preferred pin is to 608 bearing, the preferred value of the length be 1.5mm).The length stretched into
Consider contact effective area of the shaft with bearing inner race, suitably adjusted with specific reference to bearing specification size, the utility model will
The distance is set as 1.5mm or so, the transmission that can effectively ensure that torque so that is obtained between bearing and shaft effectively close
Envelope.
Preferably,
The blade structure 3 include fan blade boss 31 and blade 32, the fan blade boss 31 include fan blade boss hole 310,
The fan blade boss 31 is set in the one end of the shaft 1 by the fan blade boss hole 310, and the blade 32 can be with institute
It states the rotation of fan blade boss 31 and rotates.This is the specific constructive form of the blade structure in the sealing structure of the utility model,
Can be set in by fan blade boss in shaft blade structure is fixed, blade with fan blade boss rotate rotate, make
Internal structure of motor can be cooled down (including rotor, stator etc.) by the rotation of blade by obtaining.
Fig. 2, Fig. 3 are fan blade sealing structure, and Fig. 2 is mainly internal structure of motor, including stator-rotor iron core, shaft 1, end cap
6 and bearing 2 etc..Shaft 1 is contacted by the shaft shoulder with bearing inner race, realizes axial limiting.
Fig. 4 is fan blade sealing structure details, and the boss (fan blade boss 31) of blade structure 3 directly extends to and bearing inner race
A distance is contacted, outer ring and the bearing inner race of boss are designed as transition or slight interference cooperation, make external water or dust can not
Enter from bearing inner race, and the bearing chamber inner ring of bearing outer ring and end cap 6 can not also be led to by interference fit, water or dust from this
It crosses, for convenience of assembling, machine shaft outer ring is designed as small―gap suture with bearing inner race or transition coordinates, Selection of Bearings water-sealed bearing.
Preferably,
The first flat bit architecture is provided on the periphery of the shaft 1, energy is provided on the inner wall of the fan blade boss hole 310
The the second flat bit architecture 311 to match with the described first flat bit architecture of the shaft 1 so that the fan blade boss 31 can be by institute
Shaft 1 is stated to drive and rotated.By the second flat bit architecture on the first flat bit architecture and fan blade boss hole in shaft, make
It obtains fan blade boss and is coordinated by two flat bit architectures when can be matched with shaft and the circumferential direction of the two is limited
Position effect so that shaft rotate when, fan blade boss be driven and rotate synchronously therewith, bearing inner race is also together with shaft
It rotates synchronously so that good sealing is realized by fan blade boss between shaft, bearing, and passes through rotation and generates air quantity, to electricity
Cooling down is carried out inside machine.
Referring to shown in Fig. 2-4, it is preferable that
The inner wall of the fan blade boss hole 310 is additionally provided with the circular bead surface 312 extended along the axis direction, the shaft
Corresponding position is provided with shoulder 11 on 1 peripheral surface, and the circular bead surface 312 can be mutually matched phase with the shoulder 11
It connects to complete the axially position between shaft 1 and fan blade boss 31.By the setting of shoulder and circular bead surface, enable to fan blade convex
Platform hole completes the cooperation and positioning of axial direction with shaft, ensures to be assembled to position when fan blade boss assembles in the axial direction (to conjunction
Suitable position).
Referring to shown in Fig. 7 a- Fig. 8, it is preferable that
Step 313 is additionally provided on the end peripheral surface of the fan blade boss 31, the step 313 is inserted into described
In cavity volume 4 axial limiting is completed between the bearing 2.It, can by the step set on the end peripheral surface of fan blade boss
So that step formed with cavity volume it is mating so that the sealing performance between bearing and shaft is further enhanced, and
Also further function as the positioning action in axially and radially direction so that it is not easily to fall off after the completion of blade structure assembling, it improves
Sealing performance.
Fig. 5 a-5d, Fig. 7a-7c are two kinds of blade structures, and wherein Fig. 7a-7c is derived as 31 end of fan blade boss and adds platform
Stage structure 313 in fan blade press process, can play position-limiting action.Two kinds of fan blade inner rings have flat bit architecture, with the flat position of shaft
Match, limiting fan blade is circumferential with turning to relative rotation.
Preferably,
The blade structure 3 further includes wheel disc 33, and the diameter that the connection of wheel disc 33 is arranged on the fan blade boss 31 is outside
Side, multiple blades 32 are arranged on the wheel disc 33 and arrange along its circumferential direction.By setting above-mentioned wheel disc
Structure can be supported the structure of blade structure, enhance the structural strength of blade structure, and drive thereon by rotating
Blade rotated, rotate out of wind action and effect to reach.
Preferably,
Reinforcing rib 5 is additionally provided on the wheel disc 33, one end of the reinforcing rib 5 is outer with the fan blade boss 31
Circumferential surface is fixedly connected.By setting reinforcing rib that can further be strengthened the structural strength of blade structure, ensure fan blade knot
Stability when structure rotates.
Preferably,
The reinforcing rib 5 for it is multiple, its quantity is corresponding with the blade quantity, and along the circumferential direction side of the wheel disc 33
To arranging.Effect can be supported to the circumferential direction of wheel disc by multiple reinforcing ribs, improves circumferential direction to fan blade
The structural strength of structure integrated support.
Preferably,
Further including end cap 6, the end cap 6 is included in first part and the second part that the axis direction connects, and first
Part is set in the radial outside of the bearing 2, second part be located at the shaft 1 radial outside (referring to shown in Fig. 2-4,
I.e. the first part in figure left side bearing chamber, with allow bearing entrance support effect, second part
To be located at the end plate on right side in figure), the fan blade boss 31 of the blade structure 3 is inserted into described second of the end cap 6
Position between the radially inner side and the radial outside of the shaft 1 that divide.
Since end cap belongs to the structure of motor in itself, by above-mentioned structure setting, the wind in blade structure is enabled to
Also mating reaction is formed between leaf boss and end cap, that is, is plugged between the radially inner side of end cap and the radial outside of shaft, again
It extends further between the radially inner side of bearing and shaft radial outside, sealing can be also formed between end cap and shaft and made
With the sealing effect between raising end cap and shaft further improves the sealing effect between bearing and shaft, and also assure
Energy does not lose or utmostly small loss.
Preferably,
When including fan blade boss hole 310, it was between the inner wall of the fan blade boss hole 310 and the periphery wall of shaft 1
It is full of cooperation；
And/or when including fan blade boss 31, the bearing 2 includes bearing inner race and bearing outer ring, and the fan blade is convex
It is interference fit between platform 31 and bearing inner race,
And/or the bearing 2 includes bearing inner race and bearing outer ring, described first of the bearing outer ring and end cap
/ for interference fit；
And/or the bearing 2 includes bearing inner race and bearing outer ring, matches between the bearing inner race and shaft for transition
Conjunction or clearance fit；
And/or the bearing 2 is water-sealed bearing；
And/or the material of the blade structure 3 is plastic material.
Bearing outer ring is designed as being interference fitted with the bearing chamber internal diameter of end cap, and spindle outer diameter was designed as with bearing inner race
It crosses or small―gap suture cooperation, convenient for assembly, the boss (fan blade boss 31) of end cap exogenous wind impeller structure 3 crosses axis by 6 centre of end cap
Hole extend into bearing inner race certain distance, and fan blade boss outer diameter is designed as slight interference with bearing inner race or transition coordinates, and stretches into
Length will consider contact effective area of the shaft with bearing inner race, ensure effective transmission of torque, general 1.5mm or so,
It is suitably adjusted with specific reference to bearing specification size, and the internal diameter of fan blade boss is also configured as slight interference with spindle outer diameter or transition is matched
It closes, Selection of Bearings water-sealed bearing, such as the installation diagram of Fig. 6, Fig. 8, since the bearing chamber inner ring of bearing outer ring and end cap is interference fitted
Gapless, therefore extraneous water or dust can not enter from bearing outer ring, and bearing inner race with fan blade boss by being interference fitted
Gapless, boss inner ring and shaft outer ring are also interference gapless, and water or dust can not also enter from there, and the bearing selected
For water-sealed bearing, also anhydrous at bearing cap or dust enters, therefore can play the role of protection.
The utility model also provides a kind of motor, including rotor, stator, further includes aforementioned motor sealing structure.This
The lengthening of fan boss, using motor cooling fan, is stretched to bearing inner race by utility model by aforementioned motor sealing structure
Certain distance prevents outside water or dust from entering, i.e., by blade structure, is set in one end of the shaft, and along shaft axis
Line direction extends to the position of the bearing, and card sets the radially inner side for entering the bearing, the radial outside of the shaft, energy
It is enough sealed between bearing and shaft with fan blade by the original cooling of motor so that blade structure connects with bearing inner race
It touches, with bearing inner race synchronous rotary, is increased without sealing element, shaft and sealing element is prevented to be in direct contact, energy will not be generated
Loss, solves the problems, such as to commonly use sealing means energy loss at present, ensures motor performance, improves efficiency, and simple in structure,
It is easy to assembly, by normal press fitting；It is not further added by other parts, saves cost.
Bearing is pressed into bearing chamber into end cap by specific assembling process first, during press-in, recruitment attaching contact bearing it is outer
Circle presses bearing pressure in place, then shaft (rotor) is stretched into bearing inner race, is limited by the shaft shoulder in shaft.Finally
Fan blade is pressed into, during press-in, bearing inner race stress is made by shaft, bearing internal external circle is avoided by shearing force, such as Fig. 7a-7c
Blade structure is limited using the shoulder on fan blade, no shoulder structure, such as the fan blade of Fig. 5 a-5d, using tooling into
Row limiting since fan blade material is plastics, will not make the Internal and external cycle of bearing in the case that extruded and reduce after being squeezed
Clearance, therefore do not interfere with the operation noise of motor.
Therefore by the utility model, can not only ensure the degree of protection of motor, and due to fan blade shoulder directly with
Bearing inner race is engaged, and with bearing inner race, shaft synchronous rotary, will not generate friction, noenergy is lost, in addition fan blade inner ring
There is one section of flat bit architecture, coordinate with the flat position of shaft, will not occur to circumferentially rotate relatively, the end face of fan blade is limited by shaft block ring
Position more improves the reliability of fan blade.
Fan blade is motor cooling part, is originally had been provided on motor, is standard configuration especially in threephase asynchronous machine, therefore
Part need not be further added by, saves cost.
Installation about Fig. 5 a-5d fan blades limits problem explanation：
Fig. 5 a-5d fan blades are straight barrel type, therefore when being pressed into fan blade, need to increase in pressure tooling due to not having shoulder
Position limiting structure can be realized by following two modes.
Method one：
Motor is placed in tooling, and machine shaft withstands the item briquetting in tooling, and the push plate in tooling can pass through the cunning of bottom plate
Slot carries out parallel sliding, and when pressing fan blade, the pressure head in push plate withstands fan blade end face, and in push plate, promotion pushes away extraneous thrust
Plate (pressure head), makes fan blade gradually be inserted on axis, equipped with limited post on support plate, when the length of limited post is just attached to for fan blade
Resist push plate (phases such as opposite rotating shaft position after specific length is packed by calculating motor length, tooling plate thickness, fan blade before processing
Mutual relation calculates), due to the error in assembling processing, limited post effective length can not possibly disposably be worked into what is just needed
Length, therefore limited post can be installed on support plate by screw thread, screwed out by being threaded into, carry out the fine tuning in limiting length.
Therefore, push plate (pressure head) acting in extraneous thrust pushes fan blade to be inserted in shaft, when push plate touches limited post, as
Fan blade is installed in place.
Method two：
Ibid tooling rack difference lies in limited post is cancelled, is limited, the heavy platform on top pressure block by the top pressure block on support plate
Depth, it is identical to be designed as the axis extension elongation size after being attached to position with fan blade, i.e., extraneous thrust pushes push plate (pressure head), makes fan blade
It is gradually inserted on axis, when the heavy platform face of the axis stretching fan blade end face of fan blade side and top pressure offsets, as fan blade is installed in place, area
Not in one limited post is facilitated to limit, method two can not be visual, and extraneous thrust is set as a constant force, under this thrust, pushes away
Plate can not displacement when, i.e. the shaft end of fan blade side has resisted the heavy platform face of top pressure block.Show assembling in place.
In addition, the boss face of fan blade inner wall is also that can limit, fan blade convex table top (i.e. circular bead surface 312) and the shaft shoulder
(i.e. shaft shoulder 11) offsets, that is, shows to have been fitted into position, but this structure position-limiting action is not easy have outer lug boss structure (figure with fan blade
7a-7c fan blades) it uses simultaneously, positioning can be generated.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.The above is only the preferred embodiment of the utility model, it is noted that for the art
For those of ordinary skill, under the premise of the utility model technical principle is not departed from, several improvement and modification can also be made,
These improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (12)
1. a kind of motor sealing structure, it is characterised in that：Including：
Shaft (1)；
Bearing (2) is set in the shaft (1), and on the periphery wall of the shaft (1), it is corresponding with the bearing (2)
Position be axially further opened with shaft shoulder structure along the shaft so that between the part of the bearing (2) and the shaft shoulder structure
Form cavity volume (4)；
Blade structure (3) is set in one end of the shaft (1), and extends to the bearing (2) along shaft (1) axis direction
Position, and enter in the cavity volume (4).
2. sealing structure according to claim 1, it is characterised in that：
Blade structure (3) card, which is set, enters the part between the bearing (2) and the shaft (1) along the axis direction
Length is 1.5mm-5.0mm.
3. according to the sealing structure described in any one of claim 1-2, it is characterised in that：
The blade structure (3) includes fan blade boss (31) and blade (32), and the fan blade boss (31) includes fan blade boss hole
(310), the fan blade boss (31) is set in the one end of the shaft (1), the wind by the fan blade boss hole (310)
Leaf boss (31) can be driven by the shaft (1) and be rotated.
4. sealing structure according to claim 3, it is characterised in that：
The first flat bit architecture is provided on the periphery of the shaft (1), energy is provided on the inner wall of the fan blade boss hole (310)
The the second flat bit architecture (311) to match with the described first flat bit architecture of the shaft (1).
5. sealing structure according to claim 3, it is characterised in that：
The inner wall of the fan blade boss hole (310) is additionally provided with the circular bead surface (312) extended along the axis direction, the shaft
(1) corresponding position is provided with shoulder (11) on peripheral surface, and the circular bead surface (312) being capable of phase with the shoulder (11)
Mutually matching connects to complete the axially position between shaft (1) and fan blade boss (31).
6. sealing structure according to claim 3, it is characterised in that：
Step (313) is additionally provided on the end peripheral surface of the fan blade boss (31), the step (313) is inserted into institute
It states in cavity volume (4) and completes axial limiting between the bearing (2).
7. sealing structure according to claim 3, it is characterised in that：
The blade structure (3) further includes wheel disc (33), and wheel disc (33) connection is arranged on the diameter of the fan blade boss (31)
Outward, multiple blades (32) are arranged on the wheel disc (33) and arrange along its circumferential direction.
8. sealing structure according to claim 7, it is characterised in that：
Reinforcing rib (5), one end of the reinforcing rib (5) and the fan blade boss (31) are additionally provided on the wheel disc (33)
Peripheral surface is fixedly connected.
9. sealing structure according to claim 8, it is characterised in that：
The reinforcing rib (5) for it is multiple, its quantity is corresponding with the blade quantity, and along the circumferential direction of the wheel disc (33)
It arranges.
10. sealing structure according to claim 3, it is characterised in that：
Further including end cap (6), the end cap (6) is included in first part and the second part that the axis direction connects, and first
Part is set in the radial outside of the bearing (2), second part is located at the radial outside of the shaft (1), the fan blade knot
The fan blade boss (31) of structure (3) is inserted into the radially inner side of the second part of the end cap (6) and the shaft (1)
Position between radial outside.
11. sealing structure according to claim 10, it is characterised in that：
When including fan blade boss hole (310), it is between the inner wall of the fan blade boss hole (310) and the periphery wall of shaft (1)
Interference fit；
And/or when including fan blade boss (31), the bearing (2) includes bearing inner race and bearing outer ring, and the fan blade is convex
Platform (31) is interference fit between bearing inner race,
And/or the bearing (2) includes the first part of bearing inner race and bearing outer ring, the bearing outer ring and end cap
Between for interference fit；
And/or the bearing (2) includes bearing inner race and bearing outer ring, coordinates between the bearing inner race and shaft for transition
Or clearance fit；
And/or the bearing (2) is water-sealed bearing；
And/or the material of the blade structure (3) is plastic material.
12. a kind of motor, including rotor, stator, it is characterised in that：Further include the motor described in any one of claim 1-11
Sealing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721540040.0U CN207573148U (en) | 2017-11-17 | 2017-11-17 | A kind of motor sealing structure and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721540040.0U CN207573148U (en) | 2017-11-17 | 2017-11-17 | A kind of motor sealing structure and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207573148U true CN207573148U (en) | 2018-07-03 |
Family
ID=62690640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721540040.0U Expired - Fee Related CN207573148U (en) | 2017-11-17 | 2017-11-17 | A kind of motor sealing structure and motor |
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| CN (1) | CN207573148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107888010A (en) * | 2017-11-17 | 2018-04-06 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of motor sealing structure and motor |
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2017
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107888010A (en) * | 2017-11-17 | 2018-04-06 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of motor sealing structure and motor |
| WO2019095981A1 (en) * | 2017-11-17 | 2019-05-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor sealing structure and motor |
| CN107888010B (en) * | 2017-11-17 | 2019-11-26 | 珠海格力电器股份有限公司 | A kind of motor sealing structure and motor |
| US11289968B2 (en) | 2017-11-17 | 2022-03-29 | Gree Green Refrigeration Technology Center Co., Ltd. Of Zhuhai | Motor sealing structure and motor |
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