CN207664758U - A kind of under-water DC brushless motor for realizing static seal - Google Patents
A kind of under-water DC brushless motor for realizing static seal Download PDFInfo
- Publication number
- CN207664758U CN207664758U CN201721768632.8U CN201721768632U CN207664758U CN 207664758 U CN207664758 U CN 207664758U CN 201721768632 U CN201721768632 U CN 201721768632U CN 207664758 U CN207664758 U CN 207664758U
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- Prior art keywords
- shaft coupling
- motor
- magnetic shaft
- static seal
- connecting plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Brushless Motors (AREA)
Abstract
The utility model proposes a kind of under-water DC brushless motors for realizing static seal, including motor and magnetic shaft coupling；The utility model effectively keeps apart motor and liquid medium by the characteristic of magnetic shaft coupling, and traditional dynamic sealing is transformed to static seal.And be potted by opening in shell among electric motor end cap and connecting plate, thus effectively motor and liquid medium are kept apart.When motor connecting wire cable is powered, electrical property is converted by axial output power by stator winding, armature spindle drives the rotation of magnetic shaft coupling outer magnet, and magnetic shaft coupling outer magnet drives the rotation of magnetic shaft coupling inner magnet, to drive output shaft to rotate.It is exposed to the one layer of glue of envelope entirely of the magnet steel outer surface in liquid medium, the material of resistant to liquid attribute is all used with liquid medium contact parts.Therefore the utility model is effectively kept apart motor and liquid medium, the quarantine measures of this static seal are effectively reliable, can ensure the work of motor reliable long-life by the way that magnetic shaft coupling and motor to be made of one.
Description
Technical field
The utility model is related to a kind of motors, more particularly to a kind of direct current generator that can be worked in liquid.
Background technology
Motor is widely used in the various electrical equipments of industrial production and life, and it is fixed that existing motor generally has
Sub-component and rotor assembly, armature spindle rotate in rotor assembly and with the rotation of rotor assembly, and thus output is dynamic
Power.When motor needs to be operated in liquid medium, due to the characteristic of liquid medium itself, such as corrosivity, motor generally needs
Seal protection is done, at present the basic form for using dynamic sealing, but its reliability standard is too low, largely affects motor
Service life.Therefore, it is necessary to propose a kind of new motor to overcome the above problem.
Invention content
In order to solve the problems existing in the prior art, the brushless electricity of the under-water DC of static seal is realized the utility model proposes a kind of
Machine.Motor is environmentally isolated with liquid working by magnetic shaft coupling and is come, traditional dynamic sealing is converted to quiet
Sealing；And kept apart motor body and working environment liquid in the form of static seal by measures such as embeddings, realize electricity
The power output of machine extends the service life of motor so that motor can be in chemical liquids acid, alkaline or with other characteristics
It is used in body medium, increases the application scenario range of motor.
The technical solution of the utility model is：
A kind of under-water DC brushless motor for realizing static seal, including motor, the motor include shell, stator pack
Part, rotor assembly, motor shaft, it is characterised in that：It further include magnetic shaft coupling；The magnetic shaft coupling is by magnetic outside magnetic shaft coupling
Magnet steel forms in steel and magnetic shaft coupling；
The motor shaft is divided into armature spindle and output shaft；Armature spindle is in enclosure interior, and coaxially fixation connects with rotor assembly
It connects, can be rotated synchronously with rotor assembly；Armature spindle one end is provided with blind hole, and blind hole inner wall is fixed with magnetic shaft coupling outer steel；
Output shaft is in hull outside, and coaxial with armature spindle, and magnet steel in magnetic shaft coupling is fixed on output shaft periphery；It is magnetic
Position is corresponding between shaft coupling outer steel and magnet steel in magnetic shaft coupling, can by magnetic shaft coupling when armature spindle rotates
Drive output shaft rotation.
Further preferred embodiment, a kind of under-water DC brushless motor for realizing static seal, it is characterised in that：It is described
Shell one end is provided with the first axial center ladder blind hole, and the first center ladder blind hole aperture passes through end cap seal；In first
Heart ladder hole bottom has centered cylinder protrusion；From shell the other end face center, opened into the centered cylinder protrusion
Second center ladder blind hole；Output shaft with magnet steel in magnetic shaft coupling is mounted on the second center ladder blind hole by bearing
It is interior.
Further preferred embodiment, a kind of under-water DC brushless motor for realizing static seal, it is characterised in that：It is described
Radial connecting plate is installed in first center ladder blind hole of shell, connecting plate center is provided with axial step through-hole, axial rank
Hall Plate is fixedly mounted in terraced through-hole outer end, and Hall sensor is fixed in Hall Plate；It opens one end of the armature spindle towards end cap
There is center counterbore, position magnet steel is fixed in counterbore, Hall sensor being capable of sensed position magnet steel；Stator module is fixed on connection
In inner walls on the inside of plate, and the electrical property connection cables drawn from stator module pass through the via of connecting plate and end cap with
External agency connects；It is provided with embedding hole in housing sidewall between connecting plate and end cap, by connecting plate and is held by embedding hole
Fill sealing in inner cavity between lid.
Further preferred embodiment, a kind of under-water DC brushless motor for realizing static seal, it is characterised in that：It is described
End cap and the connecting plate are fixed by the radial screw across housing sidewall, and plus O-shaped around radial screw
Sealing ring seals.
Further preferred embodiment, a kind of under-water DC brushless motor for realizing static seal, it is characterised in that：It is described
Armature spindle both ends are coordinated with connecting plate axial step through-hole and the support of the first center of shell ladder blind hole respectively by bearing.
Further preferred embodiment, a kind of under-water DC brushless motor for realizing static seal, it is characterised in that：Turning
Sub-component end face is equipped with balance ring.
Further preferred embodiment, a kind of under-water DC brushless motor for realizing static seal, it is characterised in that：It is magnetic
Magnet steel outer surface and the sealing of output shaft outer surface in shaft coupling.
Further preferred embodiment, a kind of under-water DC brushless motor for realizing static seal, it is characterised in that：Output
Axis and the component being exposed in liquid-working-medium use the material of resistant to liquid attribute.
Advantageous effect
The utility model effectively keeps apart motor and liquid medium by the characteristic of magnetic shaft coupling, will be traditional
Dynamic sealing is transformed to static seal.Additionally, due to the presence that side wall screw is fixedly connected, O-ring seal is added around screw,
And be potted by opening in shell among electric motor end cap and connecting plate, thus effectively motor is isolated with liquid medium
It comes.When motor connecting wire cable is powered, electrical property is converted by axial output power by the motor stator winding, it is described
Rotor axis of electric drives the rotation of magnetic shaft coupling outer magnet, magnetic shaft coupling outer magnet to drive the rotation of magnetic shaft coupling inner magnet,
To drive output shaft to rotate.It is exposed to the one layer of glue of envelope entirely of the magnet steel outer surface in liquid medium, zero is contacted with liquid medium
Part all uses the material of resistant to liquid attribute.Therefore, in general, the utility model electric machine assembly, by by magnetic shaft coupling with
Motor is made of one, and effectively keeps apart motor and liquid medium, and the quarantine measures of this static seal are effectively reliable, can
Ensure the work of motor reliable long-life.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly will be from following description
In become apparent, or recognized by the practice of the utility model.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination following accompanying drawings to embodiment
Become apparent and is readily appreciated that, wherein：
Fig. 1 is the front view of the electric machine assembly of the utility model.
Fig. 2 is the revolved sectional view in direction shown in Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is the rearview of Fig. 1.
Wherein：1, shell；2, end cap；3, connecting plate；4, Hall Plate；5, Hall sensor；6, position magnet steel；7, stator pack
Part；8, rotor assembly；9, balance ring；10, armature spindle；11, magnetic shaft coupling outer steel；12, magnet steel in magnetic shaft coupling；15、
Output shaft；16, O-ring seal；17, radial screw；18, hole baffle ring；19, shaft block ring；21, it is electrically connected cable；
101, embedding hole；201, end cap via；401, connecting plate via；701, stator winding；702, insulating end plate；703、
Stator core；801, rotor yoke；802, magnet steel.
Specific implementation mode
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise " be based on the orientation or positional relationship shown in the drawings, be only for
Described convenient for description the utility model and simplifying, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " are used for description purposes only, and are not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Therefore, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
It show the revolved sectional view of the utility model with reference to Fig. 2, exports the axial power of certain speed and certain torque.
The better embodiment of the utility model is, by the shell 1 by motor, magnetic shaft coupling outer steel 11 and magnetic shaft coupling
Interior magnet steel 12 is kept apart, and when being electrically connected the energization of cable 21, magnet steel 802 is controlled by 5 signal of Hall sensor and realizes three or two
Transformation conducting, to which electrical property to be converted to the axial output power of motor rotor component 8.Armature spindle 10 and motor rotor component
8 are press-fitted together, so as to drive magnetic shaft coupling outer steel 11 to rotate, when magnetic shaft coupling outer steel 11 rotates certain angle
When spending, magnet steel 12 in magnetic shaft coupling is driven to rotate, to realize the rotation of output shaft 15, final output axial direction power.To
It can be seen that shell 1 keeps apart motor and liquid medium, and the effect of isolation cover, this reality are served as in magnetic shaft coupling
Motor and magnetic shaft coupling are made of one with novel, motor is effectively kept apart with liquid medium using the form of static seal
Come, it is ensured that the long-life of motor uses.
The motor includes end cap 2, connecting plate 3, Hall Plate 4, hall signal sensor 5, position magnet steel 6, stator module
7, rotor assembly 8, balance ring 9, armature spindle 10, electric connection cable 21.End cap 2, connecting plate 3, stator module 7 pass through shell 1
Gradually smaller internal diameter axially positions successively.From figure 3, it can be seen that end cap 2 realizes fixed connect by radial screw 17 and shell 1
It connects.Connecting plate 3 achieves a fixed connection by screw and shell 1, and is sealed with O-ring seal 16 around screw.Stator module 7
In hot jacket to 1 groove of shell.Hall Plate 4 sinks in the axial notch of connecting plate 3, and is connected by axial bolt.Position magnet steel 6
Armature spindle 10 is sunk in the endoporus of proximal cover side.Electrical property connection cables 21 pass through the via 201 in end cap 2, connecting plate 3
On via 401 and stator winding 701 it is integrally welded.
Motor stator component 7 includes stator winding 701, stator core 703, insulating end plate 702.Insulating end plate 702 relies on
Adhesive is bonded in the both ends of the stator core 703.Rotor assembly 8 includes magnet steel 802, rotor yoke 801.Magnet steel 802 according to
It is bonded in the periphery of rotor yoke 801 by adhesive, is positioned axially through 10 shaft shoulder of armature spindle.
Rotor axis of electric 10 is press-fitted to by interference on the inner headed face of rotor yoke 801.
Magnetic shaft coupling outer steel 11 is bonded in endoporus disc of the rotor axis of electric 10 far from end cap side by adhesive
On.
Magnet steel 12 is bonded in by adhesive on the periphery of electric machine assembly output shaft 15 in magnetic shaft coupling, axial to use
Shaft shoulder mode positions.
Rotor axis of electric 10 is connect by bearing with connecting plate 3 by proximal cover one end, and rotor axis of electric 10 is far from end cap one
End is connect by bearing with shell 1.
Output shaft 15 is connect by bearing with shell 1 by proximal cover one end, and output shaft 15 is far from end cap one end by bearing
It is connect with shell 1.
It will be seen from figure 1 that the bearing far from end cap side is axial by hole baffle ring 18 and shaft block ring on output shaft
19 realize axially position.
It is potted by the through-hole 101 on shell 1, end cap 2 and the inner cavity among connecting plate 3 is all filled, realized
Motor is isolated with liquid medium.In general, using magnetic shaft coupling and motor as one, and by potting, motor is whole
Body realized by the way of static seal with liquid medium it is reliable be isolated, to realize the utility model aim.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are not departing from the utility model
Principle and objective in the case of above-described embodiment can be changed in the scope of the utility model, change, replace and
Modification.
Claims (7)
1. a kind of under-water DC brushless motor for realizing static seal, including motor, the motor includes shell, stator module, turns
Sub-component, motor shaft, it is characterised in that：It further include magnetic shaft coupling；The magnetic shaft coupling by magnetic shaft coupling outer steel and
Magnet steel forms in magnetic shaft coupling；
The motor shaft is divided into armature spindle and output shaft；Armature spindle is in enclosure interior, is fixedly and coaxially connected with rotor assembly, energy
It is enough to be rotated synchronously with rotor assembly；Armature spindle one end is provided with blind hole, and blind hole inner wall is fixed with magnetic shaft coupling outer steel；Output shaft
In hull outside, and it is coaxial with armature spindle, magnet steel in magnetic shaft coupling is fixed on output shaft periphery；Magnetic shaft coupling
Position is corresponding between outer steel and magnet steel in magnetic shaft coupling, when armature spindle rotates, can be driven by magnetic shaft coupling defeated
Shaft rotates.
2. a kind of under-water DC brushless motor for realizing static seal according to claim 1, it is characterised in that：The shell one
End is provided with the first axial center ladder blind hole, and the first center ladder blind hole aperture passes through end cap seal；First center ladder
Hole bottom has centered cylinder protrusion；From shell the other end face center, opened in second into the centered cylinder protrusion
Heart ladder blind hole；Output shaft with magnet steel in magnetic shaft coupling is mounted on by bearing in the second center ladder blind hole.
3. a kind of under-water DC brushless motor for realizing static seal according to claim 2, it is characterised in that：The shell
Radial connecting plate is installed, connecting plate center is provided with axial step through-hole, axial step through-hole in the first center ladder blind hole
Hall Plate is fixedly mounted in outer end, and Hall sensor is fixed in Hall Plate；One end of the armature spindle towards end cap is provided with center
Counterbore is fixed with position magnet steel in counterbore, and Hall sensor being capable of sensed position magnet steel；Stator module is fixed on the inside of connecting plate
Inner walls on, and the electrical property connection cables drawn from stator module pass through the via of connecting plate and end cap and external machine
Structure connects；It is provided with embedding hole in housing sidewall between connecting plate and end cap, it will be between connecting plate and end cap by embedding hole
Inner cavity fill sealing.
4. a kind of under-water DC brushless motor for realizing static seal according to claim 3, it is characterised in that：The end cap and
The connecting plate is fixed by the radial screw across housing sidewall, and O-ring seal is added around radial screw
Sealing.
5. a kind of under-water DC brushless motor for realizing static seal according to claim 2, it is characterised in that：The armature spindle
Both ends are coordinated with connecting plate axial step through-hole and the support of the first center of shell ladder blind hole respectively by bearing.
6. according to a kind of under-water DC brushless motor that realizing static seal of claim 1 or 4 or 5, it is characterised in that：Turning
Sub-component end face is equipped with balance ring.
7. according to a kind of under-water DC brushless motor that realizing static seal of claim 1 or 4 or 5, it is characterised in that：It is magnetic
Magnet steel outer surface and the sealing of output shaft outer surface in shaft coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721768632.8U CN207664758U (en) | 2017-12-18 | 2017-12-18 | A kind of under-water DC brushless motor for realizing static seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721768632.8U CN207664758U (en) | 2017-12-18 | 2017-12-18 | A kind of under-water DC brushless motor for realizing static seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207664758U true CN207664758U (en) | 2018-07-27 |
Family
ID=62941517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721768632.8U Expired - Fee Related CN207664758U (en) | 2017-12-18 | 2017-12-18 | A kind of under-water DC brushless motor for realizing static seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207664758U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994717A (en) * | 2017-12-18 | 2018-05-04 | 西安航天动力测控技术研究所 | A kind of integrated under-water DC brushless electric machine of magnetic shaft coupling |
| CN113364219A (en) * | 2021-07-11 | 2021-09-07 | 陕西航空电气有限责任公司 | Rotor position detection structure for liquid-cooled brushless direct current motor |
-
2017
- 2017-12-18 CN CN201721768632.8U patent/CN207664758U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994717A (en) * | 2017-12-18 | 2018-05-04 | 西安航天动力测控技术研究所 | A kind of integrated under-water DC brushless electric machine of magnetic shaft coupling |
| CN113364219A (en) * | 2021-07-11 | 2021-09-07 | 陕西航空电气有限责任公司 | Rotor position detection structure for liquid-cooled brushless direct current motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180727 Termination date: 20211218 |