CN209057010U - A kind of drip-proof motors - Google Patents
A kind of drip-proof motors Download PDFInfo
- Publication number
- CN209057010U CN209057010U CN201821575282.8U CN201821575282U CN209057010U CN 209057010 U CN209057010 U CN 209057010U CN 201821575282 U CN201821575282 U CN 201821575282U CN 209057010 U CN209057010 U CN 209057010U
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- Prior art keywords
- shaft
- fan
- spindle nose
- shell
- drip
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a kind of drip-proof motors, belong to electric motors, the sealing waterproof for solving the problems, such as that shaft stretches out shell in the prior art causes load to increase, the technical solution for solving the problems, such as this mainly includes shell, rotor, stator and fan, shell is equipped with the mounting base of installation bearing, rotor includes shaft, shaft and bearing fit, the spindle nose of shaft stretches out shell, fan is equipped with mounting hole, mounting hole and the spindle nose of shaft cooperate fan attachment, the sealing element for realizing axial waterproof is equipped between mounting hole and spindle nose, fan, which is equipped with, covers the wheel hub that mounting base realizes radial waterproof, there is fit clearance between wheel hub and shell.The utility model is mainly used for realizing axial waterproof between shaft and motor case, while eliminating influence of the waterproof grommet to motor load.
Description
Technical field
The utility model relates to motor, especially a kind of drip-proof motors.
Background technique
Existing motor can generally install fan in shaft and carry out forced heat radiation to improve heat dissipation effect.Due to turning
Axis stretches out motor case, it is therefore desirable to consider the waterproof problem between shaft and motor case.In the prior art, motor case is set
There is the installation through-hole stretched out for shaft, waterproof cover is then arranged in shaft, the installation that waterproof cover can cover motor case is logical
Waterproof is realized in hole, but this axial length that will lead to motor increases, and increases the size of motor, the requirement for installation space
Become harsh.In addition waterproof cover and axis friction can also generate noise.
Utility model content
The utility model purpose to be achieved is just to provide a kind of drip-proof motors, realizes axis between shaft and motor case
To waterproof, while shortening the axial length of motor.
In order to achieve the above object, the utility model adopts the following technical solution: a kind of drip-proof motors, including shell, turn
Son, stator and fan, shell are equipped with the mounting base of installation bearing, and rotor includes shaft, shaft and bearing fit, the spindle nose of shaft
Shell is stretched out, fan is equipped with mounting hole, and the spindle nose cooperation fan attachment of mounting hole and shaft is equipped with real between mounting hole and spindle nose
The now sealing element of axial waterproof, fan, which is equipped with, covers the wheel hub that mounting base realizes radial waterproof, has between wheel hub and shell and matches
Close gap.
As a preferred option, the sealing element includes the sealing ring covered on spindle nose, and fan and sealing ring are interference fitted.
As further preferred scheme, the shaft is equipped with the shaft shoulder, and spindle nose is connect with the shaft shoulder, and fan is against axis on the shaft shoulder
To positioning, the end connecting on spindle nose with the shaft shoulder is equipped with annular mounting groove, and sealing ring is positioned in annular mounting groove, annular installation
One groove sidewall of slot is concordant with the end face of the shaft shoulder.
As a preferred option, the sealing element includes the sealing on the outside of mounting hole between injection mounting hole and spindle nose
Glue.
As a preferred option, the mounting base is outwardly protruded and is protruded into the space that wheel hub surrounds.
As a preferred option, it is equipped with annular groove positioned at the periphery of mounting base on the shell, it is recessed that wheel hub protrudes into annular
In slot.
As a preferred option, the mounting base, which is equipped with, goes out shaft through-hole for what spindle nose passed through, and the edge of shaft through-hole is equipped with out
Outwardly extending flange, flange bending angle are greater than 90 °.
After adopting the above technical scheme, it is using between fan and shaft first that the utility model, which has the advantages that,
Sealing element realizes the axial waterproof between fan and shaft, because fan and shaft synchronous rotary, sealing element are also synchronous with shaft
Rotation, therefore sealing element will not generate frictional resistance between shaft, the load that not will lead to shaft increases；Secondly, utilizing wheel
Hub covers mounting base and realizes radial waterproof, since centrifugal force can be generated when fan rotation, reach hub periphery water can by from
Mental and physical efforts are thrown away, so water is difficult to enter the inside of wheel hub by the fit clearance between wheel hub and shell, to cooperate sealing
The axial waterproof action of part realizes the waterproof between shaft and shell.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawing:
Fig. 1 is a kind of structural schematic diagram of drip-proof motors of the utility model；
Fig. 2 is the enlarged drawing in Fig. 1 at I.
Specific embodiment
As depicted in figs. 1 and 2, the utility model provides a kind of drip-proof motors, including shell 1, rotor 2, stator and fan
3, shell 1 is equipped with the mounting base 11 of installation bearing 4, and rotor 2 includes shaft 21, and shaft 21 and bearing 4 cooperate, the spindle nose of shaft 21
211 stretch out shell 1, and fan 3 is equipped with mounting hole 31, the cooperation fan attachment 3 of spindle nose 211 of mounting hole 31 and shaft 21, mounting hole
It is equipped with the sealing element for realizing axial waterproof between 31 and spindle nose 211, fan 3, which is equipped with, to be covered mounting base 11 and realize radial waterproof
Wheel hub 32 has fit clearance 30 between wheel hub 32 and shell 1.It is to be realized using the sealing element between fan 3 and shaft 21 first
Axial waterproof between fan 3 and shaft 21, because of fan 3 and 21 synchronous rotary of shaft, sealing element also rotation synchronous with shaft 21
Turn, therefore sealing element will not generate frictional resistance between shaft 21, the load that not will lead to shaft 21 increases；Secondly, utilizing
Wheel hub 32 covers mounting base 11 and realizes radial waterproof, due to that can generate centrifugal force when fan 3 rotates, reaches 32 periphery of wheel hub
Water can be thrown away by centrifugal force, so water is difficult to enter in wheel hub 32 by the fit clearance 30 between wheel hub 32 and shell 1
The waterproof between shaft 21 and shell 1 is realized thus the axial waterproof action of fit seal in side, and setting gap can be to avoid
Wheel hub and shell friction and generate friction and noise.
To simplify assembly, sealing element includes the sealing ring 51 covered on spindle nose 211, and fan 3 and sealing ring 51 are interference fitted.
It, can be by sealing ring 51 to the middle section pushing tow of shaft 21, in order to improve in assembling process since fan 3 is set with from spindle nose 211
The reliability of positioning of sealing ring 51, shaft 21 are equipped with the shaft shoulder 212, and spindle nose 211 is connect with the shaft shoulder 212, and fan 3 is against the shaft shoulder 212
Upper axially position, the end being connect on spindle nose 211 with the shaft shoulder 212 are equipped with annular mounting groove 213, and sealing ring 51 is positioned at annular peace
In tankage 213, a groove sidewall of annular mounting groove 213 is concordant with the end face of the shaft shoulder 212.Annular mounting groove 213, which can be, to be turned
The escape formed in 21 process of axis, is also possible to following process and is formed.Can allow in this way sealing ring 51 and fan 3 all by
The same sagittal plane positioning, has enough contacts area, it is ensured that sealing performance between sealing ring 51 and fan 3.
And in order to further increase axial waterproof effect, sealing element can also include injecting mounting hole on the outside of mounting hole 31
Sealant 52 between 31 and spindle nose 211.Sealant 52 can fill the gap between the hole wall of mounting hole 31 and spindle nose 211,
The leakproofness of the two cooperation is improved, while improving the fixed reliability of the two, after motor is used for a long time, fan 3 remains to and spindle nose
211 keep good rotation synchronism.Sealant 52 can be used in conjunction with sealing ring 51, can also select a use.
In view of the centrifugal force that radial waterproof has relied on the rotation of fan 3 to generate, it is not provided with sealing structure, therefore to improve
The effect of radial waterproof can allow mounting base 11 to outwardly protrude and protrude into the space that wheel hub 32 surrounds, and increase fit clearance 30
Length, similar maze-type structure can be formed, reduce a possibility that water enters the space interior that wheel hub 32 surrounds, improve waterproof
Performance.For the same purpose, it can be equipped with annular groove 12 positioned at the periphery of mounting base 11 on shell 1, wheel hub 32 protrudes into
In annular groove 12.The present embodiment all implements above two structure, in practical applications, can also select an implementation.
Mounting base 11, which is equipped with, goes out shaft through-hole 111 for what spindle nose 211 passed through, and the edge of shaft through-hole 111 is equipped with and extends outwardly out
Flange 13,13 bending angle of flange be greater than 90 °.Even if there is water to enter in the space that wheel hub 32 surrounds, flange can also be passed through
The groove structure that 13 outside is formed carrys out waterproof, and when especially motor is transversely mounted, water can cross out shaft through-hole along groove
111 flow downward, and will not enter shaft through-hole 111.
In addition to above preferred embodiment, for the utility model there are also other embodiments, those skilled in the art can root
It is made various changes and modifications according to the utility model, without departing from the spirit of the utility model, should belong to the utility model
Range defined in claims.
Claims (7)
1. a kind of drip-proof motors, including shell, rotor, stator and fan, shell is equipped with the mounting base of installation bearing, and rotor includes
Shaft, shaft and bearing fit, the spindle nose of shaft stretch out shell, and fan is equipped with mounting hole, the spindle nose cooperation of mounting hole and shaft
Fan attachment, which is characterized in that the sealing element for realizing axial waterproof is equipped between the mounting hole and spindle nose, fan is equipped with cover
Firmly mounting base realizes the wheel hub of radial waterproof, there is fit clearance between wheel hub and shell.
2. drip-proof motors according to claim 1, which is characterized in that the sealing element includes the sealing covered on spindle nose
Circle, fan and sealing ring are interference fitted.
3. drip-proof motors according to claim 2, which is characterized in that the shaft is equipped with the shaft shoulder, and spindle nose is connect with the shaft shoulder,
Fan is against axially position on the shaft shoulder, and the end connecting on spindle nose with the shaft shoulder is equipped with annular mounting groove, and sealing ring is positioned at annular
In mounting groove, a groove sidewall of annular mounting groove is concordant with the end face of the shaft shoulder.
4. drip-proof motors according to claim 1 or 2, which is characterized in that the sealing element includes infusing on the outside of mounting hole
Enter the sealant between mounting hole and spindle nose.
5. drip-proof motors according to claim 1, which is characterized in that the mounting base outwardly protrudes and protrudes into wheel hub and surrounds
Space in.
6. drip-proof motors according to claim 1, which is characterized in that be equipped with ring positioned at the periphery of mounting base on the shell
Connected in star, wheel hub protrude into annular groove.
7. drip-proof motors according to claim 1, which is characterized in that it is logical that the mounting base is equipped with the shaft passed through for spindle nose
Hole, the edge of shaft through-hole flange with outward extension, flange bending angle are greater than 90 ° out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821575282.8U CN209057010U (en) | 2018-09-26 | 2018-09-26 | A kind of drip-proof motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821575282.8U CN209057010U (en) | 2018-09-26 | 2018-09-26 | A kind of drip-proof motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209057010U true CN209057010U (en) | 2019-07-02 |
Family
ID=67049475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821575282.8U Active CN209057010U (en) | 2018-09-26 | 2018-09-26 | A kind of drip-proof motors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209057010U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114221472A (en) * | 2021-10-30 | 2022-03-22 | 星德胜科技(苏州)股份有限公司 | Novel waterproof motor |
-
2018
- 2018-09-26 CN CN201821575282.8U patent/CN209057010U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114221472A (en) * | 2021-10-30 | 2022-03-22 | 星德胜科技(苏州)股份有限公司 | Novel waterproof motor |
| CN114221472B (en) * | 2021-10-30 | 2023-02-28 | 星德胜科技(苏州)股份有限公司 | Waterproof motor |
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