CN107240972A - A kind of heat-resisting permanent magnet DC motor - Google Patents
A kind of heat-resisting permanent magnet DC motor Download PDFInfo
- Publication number
- CN107240972A CN107240972A CN201710448024.7A CN201710448024A CN107240972A CN 107240972 A CN107240972 A CN 107240972A CN 201710448024 A CN201710448024 A CN 201710448024A CN 107240972 A CN107240972 A CN 107240972A
- Authority
- CN
- China
- Prior art keywords
- housing
- heat
- permanent magnet
- magnetic shoe
- collar
- Prior art date
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a kind of heat-resisting permanent magnet DC motor, the heat-resisting permanent magnet DC motor includes the multiple magnetic shoes set in housing and inner walls, it is characterized in that：Two are recessed in the peripheral outer wall of the housing towards opposite terminal block portion, the circumferential end faces of the magnetic shoe are provided with interior guide face in the side of inner ring, the terminal block portion is abutted with interior guide face sets be provided with elastic forepressure to push away limited step between cooperation, another side end face of multiple magnetic shoes；It is respectively arranged with and is provided with the collar for being blocked in the axle bumper portion of two axial ends of magnetic shoe He being embedded in the inwall of housing, the collar for pushing away the slot that limited step socket coordinates in the housing；The housing on the collar with being radially equipped with positioning key；The axial end of the collar is abutted with magnetic shoe, good with magnetic shoe accurate positioning, stability, and can be worked under higher temperature environment.
Description
Technical field
The present invention relates to a kind of motor, more particularly to a kind of heat-resisting permanent magnet DC motor.
Background technology
Brushless, permanently excited direct current motor is the dc motor that magnetic field is set up by one or more permanent magnet, its performance and perseverance
The DC motor with separate excitation for determining exciting current is similar, can be by change armature voltage is come easily speed governing.With separated exciting direct current
Motivation is compared, and is had the advantages that small volume, efficiency high, simple in construction, copper consumption are few, is the main class of low powered DC motor
Type.
Permanent magnet is generally tile, i.e. magnetic shoe, and the installation tradition of magnetic shoe is general to be directly fixed on motor casing using glue
In vivo, the magnetic of magnet steel is recycled so that on the absorption electric machine casing that magnet steel typically can be tightly；The position essence that this mode is fixed
Degree is poor, and with the increasing of operating time, motor itself heat production or when being worked under the higher situation of environment temperature, glue
Viscous glutinous intensity can decline；With the vibration that motor work is produced, magnetic shoe may produce skew or the situation come off, so as to influence
The service behaviour of motor.
The content of the invention
It is an object of the invention to provide a kind of heat-resisting permanent magnet DC motor, with magnetic shoe accurate positioning, stability it is good and by
Temperature influences small advantage.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of heat-resisting permanent magnet DC motor, including the multiple magnetic shoes set in housing and inner walls, it is characterized in that：The housing
Peripheral outer wall on be recessed two towards opposite terminal block portion, the circumferential end faces of the magnetic shoe are provided with the side of inner ring
Interior guide face, the terminal block portion abuts to set between cooperation, another side end face of multiple magnetic shoes with interior guide face is provided with elasticity
Precompression pushes away limited step；It is respectively arranged with the housing and is blocked in the axle bumper portion of two axial ends of magnetic shoe and is embedded in housing
Inwall the collar, be provided with the collar for pushing away the slot that limited step socket coordinates；Along footpath on the housing and the collar
To being equipped with positioning key；The axial end of the collar is abutted with magnetic shoe.
Using such scheme, when magnetic shoe is installed, one end of magnetic shoe is abutted with terminal block portion, the other end and another magnetic
Watt end between be caught in and push away limited step, push away limited step and elastic forepressure is provided combined with terminal block portion circumferentially compressing magnetic shoe；Push away only
Attracted each other between two or more magnetic shoes that the cooperation of piece and interior guide face is prevented close, that is, limit moving radially for bearing shell；Set
The collar has been well fixed on installation site by the mutual cooperation between ring, positioning key and housing；And the axle of the collar and housing
To portion coordinate limit the freedom that magnetic shoe is axially moveable so that it is comprehensive bearing shell is stablized it is spacing, magnetic shoe is steady
Fixed is fixed in housing；Its accessory is easily changed, and is fixed relative to glue, by environmental factor, especially temperature factor shadow
Sound is smaller, can be worked under the higher environment of temperature.
More preferably：The one end of the housing vertically is provided with the rear end cap with housing one, the rear end cap
Inwall be axle bumper portion, described one end for pushing away limited step is abutted with axle bumper portion.
Using such scheme, rear end cap is wholely set with housing, relatively strong on antivibration kinetic force, the stabilization of motor after assembling
Property is preferable.
More preferably：The limited step that pushes away includes being connected to substrate in inner walls and two along motor axis projection
For U-shaped elastic portion, the U-shaped end of two elastic portions is connected with the two ends of substrate respectively；The end of the magnetic shoe and bullet
Property portion U-shaped side outer surface abut.
Using such scheme, limited step formation elastic construction is entirely pushed away, certain avoid can be provided when installing and caused
Pushing away limited step can be squeezed into mounting groove, and precompression is provided after installation, keep magnetic shoe to be abutted with the inwall of housing.
More preferably：The end of the magnetic shoe is provided with outer guide face in the side of inner walls, the elastic portion
End, which is provided with, prolongs arm, and the end for prolonging arm is abutted with the inwall of housing.
Using such scheme, prolong arm and abutted with the inwall of housing so that the U-shaped side of elastic portion is not hanging, support strength
It is higher, it is more preferable to the support effect of magnetic shoe.
More preferably：Described prolong is provided with transition arcs between arm and the end of elastic portion, the circumferential end of the magnetic shoe
Face and the junction of outer guide face are connected in transition arcs.
Using such scheme, transition location is intensity highest position in whole elastic construction, is not susceptible to deformation, so that
Play good support effect.
More preferably：On the side wall of the housing and it is circumferentially arranged on the side wall of the collar have a long lumbar hole, it is described
Positioning key coordinates with long lumbar hole.
Using such scheme, long waist type structure causes effective lifting surface area of the cooperation of positioning key and long lumbar hole to increase, especially
It is lifting surface area in axial direction；Stress and deformation is reduced, the structural strength for the positioning key for being also is bigger；And the collar is in itself
It is exactly cyclic structure, this long lumbar hole that is circumferentially provided with need not take larger axial space, so as to reduce the volume of motor.
More preferably：The positioning key in hull outside is provided with the keycap that is connected on hull outside wall.
Using such scheme, keycap prevents positioning key from excessively entering deeply and in motor as outside position limiting structure
Portion's structure produces interference.
More preferably：The positioning key is provided with Elastic buckle along along the axial end face of motor, the collar
The spacing hole with resilient snap fitment is provided with axial end.
Using such scheme so that motor more facilitates when loading, and the position after loading to positioning key
Put and be defined, prevent positioning key from deeply or radially departing from.
More preferably：The keycap has been disposed radially on through hole, the housing and has been disposed radially screwed hole, institute
Keycap is stated to fix in the way of wearing bolt with housing.
Using such scheme, coordinate buckle to strengthen fixing, or individually fix spacing, it is ensured that positioning key is installed stable.
More preferably：The positioning key and keycap, which are extended radially through, is provided with the first heat emission hole, first radiating
The oil-choking net with cellular mesh is provided with hole.
Using such scheme, heat emission hole strengthens motor radiating, and oil-choking net can play stop to the lubricating oil in motor
Effect, reduce fluid and be scattered losss, and cellular mesh-structured, cause fluid because tension structure is more prone to adhere to
Online, to strengthen retention effect.
In summary, the invention has the advantages that：
1st, magnetic shoe fixing-stable, physical life is long；
2nd, its accessory is easily changed, and is fixed relative to glue, by environmental factor, and especially temperature factor influence is smaller, can be
Worked under the higher environment of temperature.
Brief description of the drawings
Fig. 1 is the structural representation of the motor of embodiment 1；
Fig. 2 is the magnetic shoe of embodiment 1 and pushes away the structure chart of limited step；
Fig. 3 is the magnetic shoe of embodiment 1 and pushes away the assembling figure of limited step；
Fig. 4 is the structure chart of the housing of embodiment 1；
Fig. 5 is the structure chart of the collar of embodiment 1；
Fig. 6 is the structure chart at another visual angle of the collar of embodiment 1；
Fig. 7 is the structure chart of the positioning key of embodiment 1；
Fig. 8 is the structure chart at another visual angle of positioning key of embodiment 1；
Fig. 9 is the structure chart of the collar of embodiment 2；
Figure 10 is the structure chart of the positioning key of embodiment 3；
Figure 11 is the structure chart of the magnetic shoe of embodiment 4.
In figure, 1, housing；2nd, magnetic shoe；3rd, the collar；4th, positioning key；5th, limited step is pushed away；6th, long lumbar hole；7th, rotor assembly；11st, hold
Stopper；12nd, axle bumper portion；21st, interior guide face；22nd, outer guide face；23rd, rounded surface；24th, injecting glue groove；31st, spacing hole；32nd, slot；33、
Elastic bumps；41st, keycap；42nd, oil-choking net；43rd, Elastic buckle；44th, the first heat emission hole；45th, through hole；51st, substrate；52nd, it is elastic
Portion；53rd, arm is prolonged；54th, transition arcs.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make the modification without creative contribution to the present embodiment as needed after this specification is read, but as long as at this
All protected in the protection domain of invention by Patent Law.
Embodiment 1：A kind of heat-resisting permanent magnet DC motor, as shown in figure 1, including housing 1, two magnetic shoes 2 and rotor set
Part 7, magnetic shoe 2 is attached to the stator as motor on the inwall of housing 1.
Reference picture 2, the circumferential end faces of magnetic shoe 2 are provided with interior guide face 21 in the side of inner ring, and the side of outer ring is provided with outside
The acute angle of guide face 22, outer guide face 22 and the RADIAL of the circumferential end of magnetic shoe 2 is less than the acute angle of interior guide face 21 and RADIAL
Angle；The intersection of interior guide face 21 and outer guide face 22 is provided with rounded surface 23.
Two are recessed in reference picture 1 and Fig. 4, the peripheral outer wall of housing 1 towards opposite terminal block portion 11, two terminal blocks
Portion 11 abuts cooperation with two interior guide faces 21 respectively.Set between another side end face of two magnetic shoes 2 and be provided with elastic forepressure
Push away limited step 5.
Reference picture 2 and Fig. 3, pushing away limited step 5 includes being connected to substrate 51 on the inwall of housing 1 and two along motor axis projection
For U-shaped elastic portion 52, the two ends of the U-shaped ends of two elastic portions 52 respectively with substrate 51 are connected；The end of elastic portion 52 is set
It is equipped with and prolongs arm 53, the end for prolonging arm 53 is crossed the interior guide face 21 of magnetic shoe 2 and abutted with the inwall of housing 1, and elastic portion 52 is improved with this
Support resistivity.Transition arcs 54 are provided between the end for prolonging arm 53 and elastic portion 52, the rounding face of magnetic shoe 2 was connected to
Cross on arc 54, and outer guide face 22 is abutted with the U-shaped outer surface of elastic portion 52, to produce circumference and radial direction to magnetic shoe 2 simultaneously
It is spacing.
Reference picture 1 and Fig. 4, the one end of housing 1 vertically are provided with the rear end cap with the one of housing 1, the inwall of rear end cap
As axle bumper portion 12, magnetic shoe 2 and push away one end vertically of limited step 5 and abutted with axle bumper portion 12.Both other ends are supported
Connect and be provided with the collar 3, the collar 3 is embedded in housing 1 and abutted with the inwall of housing 1；It is provided with reference picture 5, the collar 3 for pushing away
The slot 32 that the socket of limited step 5 coordinates, coordinates axis portion to be defined the position for pushing away limited step 5.
There are long lumbar hole 6, length with circumferentially arranged on the side wall of the collar 3 on reference picture 1, Fig. 6 and Fig. 7, the side wall of housing 1
Positioning key 4 is equipped with waist hole 6, is defined with the position to the collar 3；Being provided with the outside of housing 1 for positioning key 4 is connected to
Keycap 41 on the lateral wall of housing 1.In addition, positioning key 4 is provided with Elastic buckle 43, elastic card along along the axial end face of motor
Button 43 be shaped as be provided with the right angle halfpace of right-angle side outwardly, the axial end of the collar 3 with Elastic buckle 43 coordinate limit
Position hole 31, to carry out quick clamping installation to positioning key 4.
Reference picture 7 and Fig. 8, positioning key 4 and keycap 41, which are extended radially through, is provided with the first heat emission hole 44, the first heat emission hole 44
On be provided with the oil-choking net 42 with cellular mesh；To play a part of stop to the lubricating oil in motor, reduce fluid and dissipate
Fall to be lost in.
Mounting means：
One end of two panels magnetic shoe 2 is abutted with two terminal block portions 11 respectively, the other end, which is caught in, pushes away limited step 5, pushes away limited step 5 and provides elasticity
Precompression combines with terminal block portion 11 and circumferentially compresses magnetic shoe 2；And backward housing 1 is embedded in the collar 3；32 pairs of the slot of the collar 3
Standard pushes away limited step 5, and is enclosed on the end for pushing away limited step 5；The side of housing 1 radially loads positioning key 4, and positioning key 4 limits the collar 3
Position simultaneously quickly fixes spacing by Elastic buckle 43 with the collar 3.
Embodiment 2：As shown in figure 9, be with the difference of embodiment 1, the close magnetic shoe 2 of the long lumbar hole 6 of the collar 3
Elastic bumps 33 are provided with inwall, elastic bumps 33 are abutted with the surface of positioning key 4.
Embodiment 3：As shown in Figure 10, the difference with embodiment 1 is, keycap 41 has been disposed radially through hole 45,
Screwed hole is disposed radially on housing 1, keycap 41 is fixed with housing 1 in the way of wearing bolt.
Embodiment 4：As shown in figure 11, the difference with embodiment 1 is, is provided with the axial end of magnetic shoe 2 many
The individual injecting glue groove 24 through outer wall, groove depth of the injecting glue groove 24 from end radially gradually becomes shallower as.
Mounting means：
Scribble fixing glue in the injecting glue groove 24 of one end of two panels magnetic shoe 2, by one end of two panels magnetic shoe 2 respectively with two terminal block portions 11
Abut, the other end, which is caught in, pushes away limited step 5, push away limited step 5 elastic forepressure is provided and combined with terminal block portion 11 and circumferentially compress magnetic shoe 2；
Fixing glue then will be also injected into the injecting glue groove 24 of the other end；And backward housing 1 is embedded in the collar 3；The slot 32 of the collar 3 is aligned
Limited step 5 is pushed away, and is enclosed on the end for pushing away limited step 5；The side of housing 1 radially loads positioning key 4, and positioning key 4 limits the position of the collar 3
Put and quickly fix spacing with the collar 3 by Elastic buckle 43.
Claims (10)
1. the multiple magnetic shoes (2) set on a kind of heat-resisting permanent magnet DC motor, including housing (1) and housing (1) inwall, its feature
It is：Two are recessed in the peripheral outer wall of the housing (1) towards opposite terminal block portion (11), the circumference of the magnetic shoe (2)
End face is provided with interior guide face (21) in the side of inner ring, and the terminal block portion (11) abuts cooperation with interior guide face (21), multiple described
Set be provided with elastic forepressure to push away limited step (5) between another side end face of magnetic shoe (2)；Set respectively in the housing (1)
There is the axle bumper portion (12) for being blocked in (2) two axial ends of magnetic shoe and be embedded in the collar (3) of the inwall of housing (1), the set
It is provided with ring (3) for pushing away the slot (32) that limited step (5) socket coordinates；The housing (1) on the collar (3) with radially wearing
Provided with positioning key (4)；The axial end of the collar (3) is abutted with magnetic shoe (2).
2. a kind of heat-resisting permanent magnet DC motor according to claim 1, it is characterized in that：The housing (1) vertically one
End is provided with the rear end cap with housing (1) one, and the inwall of the rear end cap is axle bumper portion (12), described to push away the one of limited step (5)
End is abutted with axle bumper portion (12).
3. a kind of heat-resisting permanent magnet DC motor according to claim 2, it is characterized in that：The limited step (5) that pushes away includes abutting
Substrate (51) on housing (1) inwall and two are axially projected as U-shaped elastic portion (52), two elastic portions along motor
(52) two ends of the U-shaped end respectively with substrate (51) are connected；The end of the magnetic shoe (2) and the U-shaped side of elastic portion (52)
Outer surface is abutted.
4. a kind of heat-resisting permanent magnet DC motor according to claim 3, it is characterized in that：The end of the magnetic shoe (2) is in shell
The side of body (1) inwall is provided with outer guide face (22), and the end of the elastic portion (52), which is provided with, prolongs arm (53), described to prolong arm
(53) end is abutted with the inwall of housing (1).
5. a kind of heat-resisting permanent magnet DC motor according to claim 4, it is characterized in that：It is described to prolong arm (53) and elastic portion
(52) transition arcs (54) are provided between end, the circumferential end faces of the magnetic shoe (2) are abutted with the junction of outer guide face (22)
In transition arcs (54).
6. a kind of heat-resisting permanent magnet DC motor according to claim 1, it is characterized in that：On the side wall of the housing (1) and
Circumferentially arranged on the side wall of the collar (3) to have long lumbar hole (6), the positioning key (4) coordinates with long lumbar hole (6).
7. a kind of heat-resisting permanent magnet DC motor according to claim 6, it is characterized in that：The positioning key (4) in housing
(1) outside is provided with the keycap (41) being connected on housing (1) lateral wall.
8. a kind of heat-resisting permanent magnet DC motor according to claim 7, it is characterized in that：The positioning key (4) is along motor
It is provided with to be provided with Elastic buckle (43), the axial end of the collar (3) on the end face of axial direction and matches somebody with somebody with Elastic buckle (43)
The spacing hole (31) of conjunction.
9. a kind of heat-resisting permanent magnet DC motor according to claim 7 or 8, it is characterized in that：The keycap (41) is radially
It is provided with through hole (45), the housing (1) and has been disposed radially screwed hole, the keycap (41) and housing (1) is to wear spiral shell
The mode of bolt is fixed.
10. a kind of heat-resisting permanent magnet DC motor according to claim 7, it is characterized in that：The positioning key (4) and keycap
(41) extend radially through and be provided with the first heat emission hole (44), be provided with first heat emission hole (44) with cellular mesh
Oil-choking net (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710448024.7A CN107240972A (en) | 2017-06-14 | 2017-06-14 | A kind of heat-resisting permanent magnet DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710448024.7A CN107240972A (en) | 2017-06-14 | 2017-06-14 | A kind of heat-resisting permanent magnet DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107240972A true CN107240972A (en) | 2017-10-10 |
Family
ID=59986907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710448024.7A Pending CN107240972A (en) | 2017-06-14 | 2017-06-14 | A kind of heat-resisting permanent magnet DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107240972A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656593U (en) * | 2010-03-24 | 2010-11-24 | 杜权辉 | Direct current motor permanent magnet locating device |
| CN202616902U (en) * | 2012-05-16 | 2012-12-19 | 盟立自动化科技(上海)有限公司 | Motor rotor with magnet lantern ring and lantern ring |
| CN203574458U (en) * | 2013-11-22 | 2014-04-30 | 杭州力夫机电制造有限公司 | Reverse osmosis fixing structure for magnetic tiles of booster pump motor |
| CN206164240U (en) * | 2016-11-21 | 2017-05-10 | 苏州赛比克斯电子科技有限公司 | Magnetic shoe fixed knot who has brush electric motor rotor constructs |
-
2017
- 2017-06-14 CN CN201710448024.7A patent/CN107240972A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656593U (en) * | 2010-03-24 | 2010-11-24 | 杜权辉 | Direct current motor permanent magnet locating device |
| CN202616902U (en) * | 2012-05-16 | 2012-12-19 | 盟立自动化科技(上海)有限公司 | Motor rotor with magnet lantern ring and lantern ring |
| CN203574458U (en) * | 2013-11-22 | 2014-04-30 | 杭州力夫机电制造有限公司 | Reverse osmosis fixing structure for magnetic tiles of booster pump motor |
| CN206164240U (en) * | 2016-11-21 | 2017-05-10 | 苏州赛比克斯电子科技有限公司 | Magnetic shoe fixed knot who has brush electric motor rotor constructs |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171010 |