CN208285181U - Motor, electronic shield formula liquid pump, fluid circulation system and vehicle - Google Patents
Motor, electronic shield formula liquid pump, fluid circulation system and vehicle Download PDFInfo
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- CN208285181U CN208285181U CN201820567902.7U CN201820567902U CN208285181U CN 208285181 U CN208285181 U CN 208285181U CN 201820567902 U CN201820567902 U CN 201820567902U CN 208285181 U CN208285181 U CN 208285181U
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Abstract
The utility model provides a kind of motor, the outside including housing is arranged in, and the stator in magnetic field is generated under the excitation of electric current；And the inside of the housing is set, and is fixed on the rotor in shaft, wherein the rotor being rotated by the magnetic field.There is magnetic attracting force between the stator and the rotor.The center line of the center line of the stator and the rotor is staggered certain distance in the axial direction, so that attraction effect is in axial direction pulls the rotor.The motor can reduce the play of rotor in the axial direction as a result,.In addition, the utility model further relate to include this motor electronic shield formula liquid pump, fluid circulation system and the vehicle including the fluid circulation system.
Description
Technical field
The utility model relates to motors, and in particular to the electronic shield formula liquid pump of the coolant circulation system for vehicle
Motor.
Background technique
With the development of automobile industry, people increasingly pay close attention to safety, reliability and the comfort of automobile.Vehicle electric
Sub- protected type liquid pump has gradually replaced traditional mechanical pump, and is largely applied in the cooling recirculation system of automobile.It is automobile-used
The stator module and rotor assembly of electronic shield formula liquid pump are come by housing is completely isolated, are avoided fluid leakage problems, are made
Obtaining electronic shield formula liquid pump has many advantages, such as anti-electromagnetic interference, high-efficiency environment friendly, is well positioned to meet market demands.
But existing electronic shield formula liquid pump is at runtime because there are axial floats for its motor, in the wink of liquid pump start and stop
Between have impeller forward play the problem of, lead to flow, pressure transient.Meanwhile play can also be to bearing and phase forward for motor
The part of contact causes certain impact, reduces the service life of components, to influence the stability and reliability of electronics liquid pump.
Accordingly, it is desired to provide a kind of motor for electronic shield formula liquid pump with reduced axial float.
Utility model content
One purpose of the utility model is to reduce the motor for electronic shield formula liquid pump by improvement electric machine structure
Axial float.The another object of the utility model is to provide a kind of electronic shield formula liquid pump, and having its motor reduces
Axial float.The another object of the utility model is to provide a kind of fluid circulation system with electronic shield formula liquid pump, make
The motor of the electronic shield formula liquid pump has reduced axial float.The further object of the utility model is to provide a kind of vehicle
, the fluid circulation system of the vehicle has electronic shield formula liquid pump, and the motor of the electronic shield formula liquid pump is made to have reduction
Axial float.
It is according to the present utility model in a first aspect, providing a kind of motor for electronic shield formula liquid pump, comprising: it is fixed
Son is arranged in the outside of housing, and generates magnetic field under the excitation of electric current；The inside of the housing is arranged in rotor,
And it is fixed in shaft, wherein the rotor is rotated by the magnetic field；Wherein, the stator and the rotor
Between have magnetic attracting force.The center line of the center line of the stator and the rotor is staggered a spacing in the axial direction
From so that attraction effect is in axial direction to pull the rotor.The motor can reduce rotor in axial side as a result,
Upward play.
Further, the shaft is connected to the impeller of the electronic shield formula liquid pump, also, the attraction in its output end
Power effect is pulls the rotor towards the output end, and since rotor and shaft are opposing stationary, attraction effect is court
The shaft is pulled to the output end.As a result, in the moment of liquid pump start and stop, the pull effect of this attraction be can be effectively suppressed
Impeller forward play the problem of so that the flow of liquid and pressure are more stable.
Optionally, the distance is greater than or equal to 0.5mm, and is less than or equal to 2mm.
Optionally, the rotor includes rotor core and rotor magnetic steel cylindrical, wherein the rotor magnetic steel and fixed
Magnetic attracting force is generated between son；Also, the rotor magnetic steel surrounds the outer wall of the rotor core, and in the axial direction
Extend identical length with the rotor core.
Optionally, the rotor magnetic steel includes the magnetic links of multiple shoes, and the magnetic links of the multiple shoe adjoin one another
And surround the entire periphery of the rotor core.
Optionally, the stator includes cylindrical circular stator core, stator skeleton and stator winding, wherein described fixed
Sub- iron core is supported by the stator skeleton, the stator winding pass through the stator skeleton in through-hole and coiling.
Optionally, the motor includes the base and end cap that can be fitted to each other；Wherein, fixation is set in the inner cavity of the base
Set the stator；Wherein, the inner seal of the end cap it is connected to the open end of the housing；And, wherein described turn
Axis passes through the end cap and extends to the outside of the end cap, and is connected to the impeller of the liquid pump.
Optionally, the interlude of the shaft is supported by the fore bearing being arranged on the end cap；Also, it is described
The rear end of shaft is supported by the rear bearing on the closed end that the housing is arranged in.
Optionally, the motor further includes ceramic gasket；Wherein, the ceramic gasket is connected to the rotor, and keeps
It fits always with the fore bearing.As a result, during motor start and stop or operation, fore bearing can be against ceramic gasket, to hinder
Rotation stop moves forward, to effectively inhibit the play forward of shaft.
Optionally, the motor further includes bottom gasket；Wherein, the closing of the housing is arranged in the bottom gasket
End, also, the bottom gasket is spaced apart certain interval with the rear bearing in the axial direction.Optionally, the gap is big
In 0.5mm, and it is less than or equal to 1mm, and preferably 0.8mm.
Second aspect according to the present utility model provides a kind of electronic shield formula liquid pump comprising according to described above
Motor.
The third aspect according to the present utility model provides a kind of fluid circulation system comprising according to described above
Electronic shield formula liquid pump.
Fourth aspect according to the present utility model provides a kind of vehicle comprising according to liquid circulation described above
System.
It is hereafter described in detail in conjunction with the accompanying drawings for realizing the one of the utility model as defined in the appended claims
A little optimal modes and embodiment are therefrom readily appreciated that the features described above and advantage and other feature and advantage of the utility model.
Detailed description of the invention
Description wherein the purpose respectively illustrated is only that the certain exemplary embodiments of display, and is not intended to this
Utility model is limited.In the drawings, identical appended drawing reference indicates identical element, in the accompanying drawings:
Fig. 1 shows the sectional view of the motor according to the present utility model for electronic shield formula liquid pump；
Fig. 2 shows the side view of the stator of motor according to the present utility model；
Fig. 3 shows the side view of the rotor of motor according to the present utility model；
Fig. 4 shows the rotor of motor according to the present utility model and the arrangement of stator.
Appended drawing reference
1 motor, 11 base
12 end cap, 2 stator
21 stator core, 22 stator skeleton
23 stator winding, 3 rotor
31 rotor core, 32 rotor magnetic steel
33 separation layer, 4 housing
41 open end, 42 closed end
43 cushion rubber, 5 shaft
51 output end, 52 interlude
53 rear end, 61 fore bearing
62 rear bearing, 7 ceramic gasket
71 connector, 8 bottom gasket
The gap L distance H
Specific embodiment
It would be recognized by those skilled in the art that unless otherwise indicated, term used herein has generally in the art
Meaning.Also, indicate the term " right side " of relative position, "upper", " preceding " instruction refer to shown in attached drawing towards motor output end
Direction；Term " left side ", "lower", " rear " the instruction direction opposite with the former, i.e., towards the direction inside motor.These terms are used for
It more clearly illustrates the embodiments of the present invention, and is not intended to and the protection scope of the utility model is limited.
Fig. 1 shows the sectional view of the motor 1 of electronic shield formula liquid pump according to the present utility model.The protected type liquid pump can
In cooling recirculation system for vehicle.Traditional liquid pump is connected impeller shaft and the shaft of motor by shaft coupling, is needed
Complicated dynamic sealing means are set between the shaft and impeller shaft of motor, to prevent the liquid leakage in outside from influencing into motor
The work of motor.Unlike this, as shown in Figure 1, closed screen is arranged in the motor 1 of protected type liquid pump between stator 2 and rotor 3
Cover set 4.Also, the rotor 3 of impeller (not shown) and motor 1 is arranged in same shaft 5, and is respectively positioned on the interior of housing 4
In portion space.The inner space of housing 4 can be connected to the liquid fluid in outside as a result, and be liquid filled.Therefore, this
Electronic shield formula liquid pump only needs the static sealing for considering housing 4 to make without designing complicated dynamic sealing around shaft 5
The overall structure for obtaining liquid pump is more simple and reliable.
Below with reference to FIG. 1 to FIG. 4 detailed description according to the specific structure of the motor 1 of an embodiment of the present invention.
As shown in Figure 1, the motor 1 of the protected type liquid pump includes base 11 and end cap 12, both this is detachable and matches each other
It closes.Base 11 is cylindrical shape open at one end, and the stator 2 of motor 1 is fixedly installed in the internal chamber of base 11, specifically with
Base 11 is coaxially fixable to the inner wall of base 11.Fig. 2 shows the specific structures of the stator 2.As shown in Fig. 2, stator 2 is by fixed
Sub- iron core 21, stator skeleton 22 and stator winding 23 form.Wherein, stator core 21 is overrided to form using multiple thin silicon steel plates,
And it limits and supports by stator skeleton 22.On the whole, stator core 21 has cylindrical shape, also, in its circumferential direction
Multiple through-holes for coiling stator winding 23 are equably set.Stator winding 23 is according to suitable mode in the multiple through-hole
Middle coiling.As a result, when being passed through three-phase symmetrical electric current in stator winding 23, in the inside of stator 2 (that is, stator core 21)
The magnetic field of rotation is generated, so as to motivate and drive the rotor 3 inside stator 2 to be rotated.
As shown in Figure 1, the open end of base 11 is arranged in end cap 12, for closing the internal chamber of the base 11.It is holding
The inside (towards the side of base 11) of lid 12 is equipped with housing 4.Housing 4 is in cylindrical shape open at one end, open end
41 are securely attached to the inner surface of end cap 12, and its closed end 42 is undertaken on the adapting structure for electric inside base 11, such as Fig. 1
It is shown.In the assembled state shown in, housing 4 passes through the inner cavity of stator 2, so that the circumferential side wall of housing 4 is by outside
Stator 2 and the rotor 3 of inside separate.Due to being provided between the open end 41 and end cap 12 of housing 4 for providing
The cushion rubber 43 of static liquid sealing, therefore, can prevent the liquid for being located at the outside of end cap 12 penetrate into housing 4 and 11 inner wall of base it
Between space in, then prevent liquid influence stator 2 work.
It continues to refer to figure 1, rotor 3 is located at the inside of housing 4, moreover, rotor 3 includes being fixed in shaft 5
Rotor core 31, rotor 31 can move together with shaft 5 as a result, it can rotate together and move axially.Fig. 3, which is shown, to be turned
The side view of son 3, wherein rotor core 31 can be solid cylindrical steel.In addition, rotor 3 further includes rotor magnetic steel 32,
The outer wall of rotor core 31 is surrounded, and extends identical length with the rotor core 31 in the axial direction.This rotor
Magnet steel 32 can be used for forming magnetic attracting force between stator 2, with towards stator 2 magnetically pull the rotor core 31 and with
The shaft 5 that rotor core 31 links.In the illustrated embodiment, rotor magnetic steel 32 can be by multi-disc (such as 6) tile
Magnetic links connect, and the entire outer surface of surrounding rotor iron core 31.Skilled person will appreciate that in other positions
The rotor magnetic steel 32 of (such as inside of rotor core 31), (such as complete magnet steel ring) setting in other forms is feasible
, as long as it can apply axial pulling force for rotor core 31.In addition, as shown, can be coated in the outside of rotor 3
One layer of separation layer 33, the corrosion with fluid partitioning to 3 internal material of rotor.
Further, it as shown in Figure 1, being equipped with external screw thread at the output end 51 of shaft 5, is used to (not show with the impeller of liquid pump
It is threadedly coupled out), shaft 5 can drive wheel rotation as a result, to realize the effect to the liquid in fluid circulation system.For
Bearing shaft 5, shaft 5 are supported at interlude 52 by fore bearing 61, and fore bearing 61 is connected to the collar of end cap 12.Shaft
5 are supported at rear end 53 by rear bearing 62, and rear bearing is connected to the closed end 42 of housing 4.As a result, in assembly manipulation,
Rotor 3 and housing 4 can be assembled to end cap 12 in advance, be assembled to base 11 and its interior together with end cap 12 consequently as entirety
The stator 2 in portion.In addition, the aperture allows the outside of end cap 12 (to deviate from base 11 as shown in Figure 1, being equipped with aperture on end cap 12
Side) liquid enter and fill the inside of housing 4.
Fig. 4 shows the arrangement of stator 2 and rotor 3 in motor 1.For the sake of clear, base 11, end is omitted in Fig. 4
The support constructions such as lid 12.As shown in figure 4, stator 2 at axial length half, perpendicular to axial direction center line with A-A
Indicate, rotor 3 at axial length half, indicated with B-B perpendicular to the center line of axial direction.Rotor 3 is relative to fixed
The offset (in Fig. 4 downwards, far from end cap 12) backward of son 2, so that the center line A-A of stator 2 and the center line B-B of rotor 3 are staggered
Certain distance L.This size for being staggered distance L is can be controlled between 0.5~2mm.In addition, in the front side of rotor 3 (in Fig. 4
Side, towards end cap 12) it is equipped with ceramic gasket 7.Rotor 3 is via the ceramic gasket 7 in the axial direction against fore bearing 61.Ceramic gasket
7 can be connected to rotor 3 via connector 71, rotate together ceramic gasket 7 with rotor 3.During 1 start and stop of motor and work,
The holding of ceramic gasket 7 fits always with fore bearing 61.
Based on this arrangement, the rotor magnetic steel 32 in rotor 3 can generate magnetic attraction to stator 2.Since stator 2 is fixed on
On casing 11, the result is that rotor 3 will receive an attraction axially forward under the action of rotor magnetic steel 32, this attraction
Tend to be directed at the center line B-B of rotor 3 with the center line A-A of stator 2.On the other hand, rotor 3 is at its front end face via pottery
7 abutting contact fore bearing 61 of porcelain gasket.Thus, rotor 3 is maintained at the position for having the distance L that is staggered relative to stator 2.At this
In one situation, in motor start and stop or during operation, rotor 3 is held against the end face of contact fore bearing 61 via ceramic gasket 7,
Ensure that shaft 5 there will not be forward shifting amount；Moreover, rotor 3 is always by forward pulling force, so as to inhibit it is any backward
Small shifting amount.Therefore, this arrangement can significantly inhibit the axial float of shaft 5.
In the prior art, the longitudinal center line of stator and rotor is usually overlapped, and therefore, rotor and shaft are susceptible to the external world
It interferes and faces predominantly axial play.In comparison, the rotor 3 of the utility model and its play of shaft 5 are effectively controlled
Be substantially reduced, to significantly reduce vibration and noise, extend the service life of motor 1 and improve maneuvering performance.
In addition, as shown in figure 4, the bottom gasket 8 of the rear end 53 of shaft 5 and 42 inside of closed end for being set to housing 4
Between have certain interval H.Gap H is advantageously controlled within the scope of 0.5mm < H≤1mm.In general, motor 1
Global tolerance range is ± 0.5mm, and shaft 5 is contacted with bottom gasket 8 in order to prevent, settable H > 0.5mm；Again because of rear bearing 62
End face and bottom gasket 8 between design gaps be 1mm, it is contemplated that shaft 5 comes into full contact with rear bearing 62, then needs Hmax=
1mm, i.e. H≤1mm.Preferably, the size of H is H=0.8mm.
Motor according to the present utility model has at least the following advantages:
1, the dislocation arrangement between stator 2 and rotor 3 ensures motor 1 without forward shifting amount, to overcome because of impeller
The unstability of flow and pressure when front and back play causes liquid pump to run；
2, since motor 1 is without forward shifting amount, it is more easier to detect and control impeller in production process in pump case
Position guarantees the stability of liquid pump efficiency；
3, since motor 1 is without forward shifting amount, in 1 start and stop moment of motor, ceramic gasket 7 will not generate fore bearing 61
Play impact reduces the impaired risk of fore bearing 61, improves the reliability of motor 1；
4, since motor 1 is without forward shifting amount, the rear end face and bottom gasket of shaft 5 are easier to control in production process
Gap size between 8 will not make shaft 5 touch bottom gasket 8 because of the problem of package size chain, and causing to rub for a long time causes
The failure of bottom gasket 8, and avoid that shaft 5 and bottom gasket 8 is caused to glue dead situation generation because of corrosion；
5, the distance L that is staggered between stator 2 and rotor 3 is 0.5≤L≤2mm, it is ensured that liquid pump operational efficiency is substantially not
Become, therefore can directly carry out production replacement, while can prevent impurity from entering between ceramic gasket 7 and fore bearing 1, influences stability.
The certain most preferred embodiments and other embodiments for realizing the utility model are described in detail above, but answer
Understand, the effect of these embodiments is only that citing, and do not lie in limit in any way the scope of the utility model, it is applicable or
Construction.The protection scope of the utility model is limited by appended claims and its equivalent way.Those skilled in the art can be
Many changes are made to foregoing embodiments under the introduction of the utility model, these changes each fall within the protection model of the utility model
It encloses.
Claims (15)
1. a kind of motor (1), is used for electronic shield formula liquid pump, the motor (1) includes:
Stator (2) is arranged and generates magnetic field in the outside of housing (4), and under the excitation of electric current；
Rotor (3) is arranged in the inside of the housing (4), and is fixed on shaft (5), wherein the rotor (3) exists
The magnetic field is rotated by；
Wherein, there is magnetic attracting force between the stator (2) and the rotor (3)；
It is characterized in that,
The center line (A-A) of the stator (2) and the center line (B-B) of the rotor (3) are staggered a spacing in the axial direction
From (L), so that attraction effect is in axial direction to pull the rotor (3).
2. motor according to claim 1, which is characterized in that the shaft (5) is connected to described in its output end (51)
The impeller of electronic shield formula liquid pump, also, attraction effect is to pull the shaft (5) towards the output end (51).
3. motor according to claim 1, which is characterized in that
The distance (L) is greater than or equal to 0.5mm, and is less than or equal to 2mm.
4. motor according to claim 1, which is characterized in that
The rotor (3) includes rotor core cylindrical (31) and rotor magnetic steel (32), wherein the rotor magnetic steel (32)
Magnetic attracting force is generated between stator (2)；Also,
The rotor magnetic steel (32) surrounds the outer wall of the rotor core (31), and in the axial direction with the rotor core
(31) extend identical length.
5. motor according to claim 4, which is characterized in that
The rotor magnetic steel (32) includes the magnetic links of multiple shoes, and the magnetic links of the multiple shoe adjoin one another and surround institute
State the entire periphery of rotor core (31).
6. motor according to claim 1, which is characterized in that
The stator (2) includes cylindrical circular stator core (21), stator skeleton (22) and stator winding (23), wherein institute
It states stator core (21) to be supported by the stator skeleton (22), the stator winding (23) passes through in the stator skeleton (22)
Through-hole and coiling.
7. motor according to claim 1, which is characterized in that
The motor includes the base (11) and end cap (12) that can be fitted to each other；
Wherein, the stator (2) are fixedly installed in the inner cavity of the base (11)；
Wherein, the inner seal of the end cap (12) it is connected to the open end (41) of the housing (4)；Also,
Wherein, the shaft (5) passes through the end cap (12) and extends to the outside of the end cap (12), and is connected to the liquid pump
Impeller.
8. motor according to claim 7, which is characterized in that
The interlude (52) of the shaft (5) is supported by the fore bearing (61) being arranged on the end cap (12)；Also,
Rear bearing (62) of the rear end (53) of the shaft (5) by setting on the closed end (42) of the housing (4)
It is supported.
9. motor according to claim 8, which is characterized in that
The motor further includes ceramic gasket (7)；
Wherein, the ceramic gasket (7) is connected to the rotor (3), and keeps fitting always with the fore bearing (61).
10. motor according to claim 8, which is characterized in that
The motor further includes bottom gasket (8)；
Wherein, the bottom gasket (8) is arranged in the closed end (42) of the housing (4), also, the bottom gasket (8)
It is spaced apart certain interval (H) in the axial direction with the rear bearing (62).
11. motor according to claim 10, which is characterized in that
The gap is greater than 0.5mm, and is less than or equal to 1mm.
12. motor according to claim 11, which is characterized in that
The gap is 0.8mm.
13. a kind of electronic shield formula liquid pump, which is characterized in that
It include according to claim 1~any one of 12 described in motor (1).
14. a kind of fluid circulation system, which is characterized in that
It includes electronic shield formula liquid pump according to claim 13.
15. a kind of vehicle, which is characterized in that
It includes fluid circulation system according to claim 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820567902.7U CN208285181U (en) | 2018-04-19 | 2018-04-19 | Motor, electronic shield formula liquid pump, fluid circulation system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820567902.7U CN208285181U (en) | 2018-04-19 | 2018-04-19 | Motor, electronic shield formula liquid pump, fluid circulation system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208285181U true CN208285181U (en) | 2018-12-25 |
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ID=64751681
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820567902.7U Active CN208285181U (en) | 2018-04-19 | 2018-04-19 | Motor, electronic shield formula liquid pump, fluid circulation system and vehicle |
Country Status (1)
| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109672292A (en) * | 2018-12-27 | 2019-04-23 | 佛山市三角洲电器科技有限公司 | A kind of roller end positioning formula motor and its localization method |
| CN111725934A (en) * | 2019-03-22 | 2020-09-29 | 广东德昌电机有限公司 | Fluid pump |
| CN112564406A (en) * | 2020-12-16 | 2021-03-26 | 沈阳盛世五寰科技有限公司 | Totally-enclosed low-speed permanent magnet driving system for electric ball valve |
| CN116780817A (en) * | 2023-08-21 | 2023-09-19 | 航天泰心科技有限公司 | Micro motor for interventional catheter pump |
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2018
- 2018-04-19 CN CN201820567902.7U patent/CN208285181U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109672292A (en) * | 2018-12-27 | 2019-04-23 | 佛山市三角洲电器科技有限公司 | A kind of roller end positioning formula motor and its localization method |
| CN111725934A (en) * | 2019-03-22 | 2020-09-29 | 广东德昌电机有限公司 | Fluid pump |
| WO2020192492A1 (en) * | 2019-03-22 | 2020-10-01 | 广东德昌电机有限公司 | Fluid pump |
| US11764646B2 (en) | 2019-03-22 | 2023-09-19 | Johnson Electric International AG | Fluid pump |
| CN111725934B (en) * | 2019-03-22 | 2024-04-23 | 广东德昌电机有限公司 | Fluid pump |
| CN112564406A (en) * | 2020-12-16 | 2021-03-26 | 沈阳盛世五寰科技有限公司 | Totally-enclosed low-speed permanent magnet driving system for electric ball valve |
| CN116780817A (en) * | 2023-08-21 | 2023-09-19 | 航天泰心科技有限公司 | Micro motor for interventional catheter pump |
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