CN222602137U - Motor pump, suspension system and vehicle - Google Patents

Abstract

The present application provides a motor pump, a suspension system and a vehicle. The motor pump includes: a motor unit and a magnetic component. The motor unit includes a rotating shaft, and the rotating shaft has a center hole. The magnetic component is connected to the rotating shaft, and a through hole is provided on the magnetic component. The through hole is connected to the center hole to form an oil flow channel. By optimizing the structure of the magnetic component, a through hole is provided on the magnetic component to connect with the center hole, so that the center hole and the through hole of the magnetic component form a passage for oil to enter the motor, thereby solving the problem of lubrication and heat dissipation inside the motor. Compared with the existing cooling path, the structure of the present application is simple and the motor loss is small.

Description

Motor pump, suspension system and vehicle

Technical Field

The application relates to the technical field of motors, in particular to a motor pump, a suspension system and a vehicle.

Background

The motor can be accompanied with a large amount of heat production in the normal course of working, and this heat influences the motor performance, influences the life-span of motor even, and the heating source when permanent magnet motor works mainly has parts such as stator winding, stator core, rotor core, magnet, bearing, and current heat dissipation mode can increase the motor loss of motor, increases rotor vibration increase noise, simultaneously, and the coolant liquid is stranded and is led to the fact local temperature to be high easily in the motor inside, leads to the motor unusual.

Disclosure of utility model

In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the utility model is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

The application aims to solve the technical problems that a large amount of heat is generated in the normal working process of the motor, the heat influences the performance of the motor in the motor, the existing heat dissipation structure is complex, the loss of the motor is increased, the noise is increased, and the performance of the motor is influenced.

In order to at least partially solve the technical problems, a first aspect of the application provides a motor pump, which is characterized by comprising a motor unit, a magnetic assembly and a motor unit, wherein the motor unit comprises a rotating shaft, the rotating shaft is provided with a central hole, the magnetic assembly is connected with the rotating shaft, and is provided with a through hole, and the through hole is communicated with the central hole to form an oil liquid flow channel.

According to the motor pump disclosed by the application, the structure of the magnetic assembly is optimized, the through hole is formed in the magnetic assembly and is communicated with the central hole, so that the central hole and the through hole of the magnetic assembly form a passage of oil liquid and enter the motor, the problem of lubrication and heat dissipation in the motor is solved, and compared with the existing cooling path, the motor pump disclosed by the application is simple in structure. Meanwhile, in the prior art, oil is thrown out from a radial hole at the tail end of a rotating shaft, the oil cannot flow and exchange with oil outside after flowing into a motor, and the vibration of the motor can be increased when the oil flows out radially.

Optionally, the magnetic component is connected to one end of the rotating shaft.

Optionally, the magnetic assembly includes magnetic ring and magnetic ring mount pad, the magnetic ring mount pad with the pivot is connected, the through-hole sets up on the magnetic ring mount pad, the magnetic ring is installed on the magnetic ring mount pad, the through-hole with the centre bore all with the magnetic ring intercommunication.

Optionally, a protrusion is disposed at one end of the magnetic ring mounting seat, and the protrusion cooperates with the central hole to connect the magnetic ring mounting seat with the rotating shaft, and the protrusion is provided with a through hole, and the through hole is communicated with the central hole.

Optionally, the magnetic ring is arranged at the other end of the magnetic ring mounting seat.

Optionally, a groove recessed toward one end of the magnetic ring mounting seat is formed at the other end of the magnetic ring mounting seat, and the groove is configured as a mounting groove of the magnetic ring.

Optionally, the extension of the groove in the radial direction of the rotating shaft is larger than the diameter of the through hole.

Optionally, the motor pump further comprises a pump unit, the pump unit is provided with an oil cavity, the other end of the rotating shaft stretches into the pump unit, and the central hole is communicated with the oil cavity.

Optionally, the motor pump further includes a housing, a first gap is formed between one end of the rotating shaft and the housing, a second gap is formed between the other end of the rotating shaft and the housing, and the first gap and the second gap are both communicated with the center hole.

Optionally, a third gap is formed between the housing and the circumferential outer wall of the rotating shaft, the third gap is communicated with the second gap, and the third gap is suitable for being communicated with an oil cavity of the pump unit.

Optionally, a bearing is disposed between one end of the rotating shaft and the housing, the motor unit includes a rotor assembly and a stator assembly, a first gap is formed between the rotor assembly and the stator assembly, the first gap is communicated with the first gap, and the bearing is located on a path where the first gap is communicated with the first gap.

Optionally, the bearing is located between one end and the other end of the rotating shaft along the axial direction of the rotating shaft.

Optionally, the casing includes motor casing and pump case, the motor casing with the pump case is followed the axial arrangement of pivot is arranged, the motor casing with the pump case is connected, the motor unit sets up in the motor casing, the pump unit set up in the pump case.

Optionally, a first channel is arranged on the motor casing, a second channel is arranged on the pump casing, the first channel is communicated with the first gap, the second channel is communicated with the oil cavity, and the first channel is communicated with the second channel.

Optionally, the first gap is formed between one end of the rotating shaft and the motor casing, and the second gap is formed between the other end of the rotating shaft and the pump casing.

Optionally, the motor casing includes a first motor casing and a second motor casing that are disposed opposite to each other, and the pump casing includes a first pump casing and a second pump casing that are disposed opposite to each other;

The second motor housing is integral with the first pump housing.

A second aspect of the application provides a suspension system comprising the electric motor pump of any of the first aspects.

A third aspect of the application provides a vehicle comprising the suspension system of the second aspect.

Drawings

The following drawings of embodiments of the present application are included as part of the application. Embodiments of the present application and their description are shown in the drawings to explain the principles of the application. In the drawings of which there are shown,

FIG. 1 is a cross-sectional view of an active suspension dual motor pump;

FIG. 2 is a schematic illustration of a magnetic ring mount;

FIG. 3 is a schematic illustration of a magnetic ring;

Fig. 4 is an enlarged view of the first slit position.

Reference numerals in the specification are as follows:

100. The motor pump comprises a motor pump body, a motor unit, 10, a rotating shaft, 11, a central hole, 12, a rotor assembly, 13, a stator assembly, 14, a first gap, 2, a magnetic assembly, 20, a through hole, 21, a magnetic ring, 22, a magnetic ring mounting seat, 23, a protrusion, 24, a groove, 25, a magnetic ring hole, 3, a pump unit, 30, a gear, 31, an oil cavity, 4, a shell, 40, a first gap, 41, a second gap, 42, a third gap, 43, a pump cover bearing, 44, a ball bearing, 45, a motor shell, 46, a pump shell, 5, a sealing element, 6, a first channel 7, a second channel, 8 and a one-way valve.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present application. It will be apparent, however, to one skilled in the art that embodiments of the application may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the embodiments of the application.

Herein, ordinal words such as "first" and "second" cited in the present application are merely identifiers and do not have any other meaning, such as a particular order or the like. Also, for example, the term "first component" does not itself connote the presence of "second component" and the term "second component" does not itself connote the presence of "first component".

In this document, "upper", "lower", "front", "rear", "left", "right", and the like are used merely to indicate relative positional relationships between the relevant portions, and do not limit the absolute positions of the relevant portions.

Herein, "equal," "same," etc. are not strictly mathematical and/or geometric limitations, but also include deviations that may be appreciated by those skilled in the art and allowed by fabrication or use, etc.

Unless otherwise indicated, numerical ranges herein include not only the entire range within both of its endpoints, but also the several sub-ranges contained therein.

The embodiment of the application provides a motor pump 100, wherein the motor pump 100 is shown in fig. 1, the motor pump 100 comprises a motor unit 1, the motor unit 1 comprises a rotating shaft 10, the rotating shaft 10 is provided with a central hole 11, the motor pump 100 further comprises a magnetic component 2, the magnetic component 2 is connected with the rotating shaft 10, a through hole 20 is arranged on the magnetic component 2, and the through hole 20 is communicated with the central hole 11 to form an oil flow passage.

According to the motor pump 100 disclosed by the application, the structure of the magnetic assembly 2 is optimized, the through hole 20 is arranged on the magnetic assembly 2 and is communicated with the central hole 11, so that the central hole 11 and the through hole 20 of the magnetic ring assembly form a passage of oil liquid to enter the motor, the problem of lubrication and heat dissipation in the motor is solved, and compared with the existing cooling path, the motor pump disclosed by the application is simple in structure. Meanwhile, in the prior art, oil is thrown out from a radial hole at the tail end of a rotating shaft 10, the oil cannot flow and exchange with oil outside after flowing into the motor, and the vibration of the motor can be increased when the oil flows out radially.

In one embodiment, referring to fig. 1, the magnetic assembly 2 is connected to one end of the rotating shaft 10, where one end of the rotating shaft 10 is opposite to the other end of the rotating shaft 10, where one end of the rotating shaft 10 refers to an end extending to a portion of the motor unit 1, and the other end of the rotating shaft 10 is an end extending to the pump unit 3 (consistent with "pump unit 3" described below). Specifically, the magnetic assembly 2 is connected to the end of one end of the shaft 10 by a threaded connection or other mating relationship, and forms a detachable integral piece with the shaft 10.

In an embodiment, as shown in fig. 1-3, the magnetic assembly 2 includes a magnetic ring 21 and a magnetic ring mounting seat 22, wherein the magnetic ring mounting seat 22 is connected with the rotating shaft 10, the through hole 20 is arranged on the magnetic ring mounting seat 22, the magnetic ring 21 is mounted on the magnetic ring mounting seat 22, one end of the through hole 20 on the magnetic ring mounting seat 22 is communicated with the central hole 11 of the rotating shaft 10, the other end of the through hole is communicated with the magnetic ring 21, as shown in fig. 3, the magnetic ring 21 is a ring with holes, and the magnetic ring hole 25 of the magnetic ring 21 is communicated with the other end of the through hole 20, so that both the through hole 20 and the central hole 11 are communicated with the magnetic ring 21.

In an embodiment, as shown in fig. 2, one end of the magnetic ring mounting seat 22 is provided with a protrusion 23, the protrusion 23 is adapted to extend into the central hole 11, and is matched with the central hole 11 to connect the magnetic ring mounting seat 22 with the rotating shaft 10, the shape of the protrusion 23 is not particularly limited, and may be circular, polygonal or other special shape, the protrusion 23 is matched with the central hole 11 of the rotating shaft 10 to be in interference connection, or may be in threaded connection, and a through hole 20 is provided on the protrusion 23, and the through hole 20 is communicated with the central hole 11.

In one embodiment, the magnetic ring 21 is disposed at the other end of the magnetic ring mount 22.

In an embodiment, as shown in fig. 2, the other end of the magnetic ring mounting seat 22 is provided with a groove 24 recessed toward one end of the magnetic ring mounting seat 22, the groove 24 is configured as a mounting groove of the magnetic ring 21, the magnetic ring 21 is mounted in the groove 24 of the magnetic ring mounting seat 22, and a protruding structure can be disposed in the groove 24, so that the magnetic ring 21 is mounted on the magnetic ring mounting seat 22 more firmly. The magnetic ring 21 is communicated with the through hole 20 and the central hole 11 on the magnetic ring mounting seat 22, and oil can pass through the magnetic ring mounting seat 22 and the magnetic ring 21.

In one embodiment, the groove 24 extends radially of the shaft 10 to a dimension greater than the diameter of the through hole 20 to ensure that oil does not leak.

In an embodiment, as shown in fig. 1, the motor pump 100 further includes a pump unit 3, where the pump unit 3 and the motor unit 1 are arranged in an axial direction of the rotating shaft 10, the motor unit 1 is connected to the pump unit 3, the motor unit 1 can drive the pump unit 3, and torque can be transmitted between the pump unit 3 and the motor unit 1 through connection of a polygon or a spline, where the pump unit 3 may be an internal gear pump. The pump unit 3 has an oil cavity 31, the other end of the rotation shaft 10 extends to the pump unit 3, and the center hole 11 of the rotation shaft 10 can communicate with the oil cavity 31 of the pump unit 3 so that oil in the oil cavity 31 can flow into the center hole 11 of the rotation shaft 10. Specifically, when the motor pump 100 is operated, the motor drives the gear 30 of the internal gear pump to rotate, so that the oil chamber 31 in the pump unit 3 can be opened to communicate with the outside flow passage, and the oil flows into the center hole 11.

In one embodiment, as shown in fig. 1, the motor pump 100 further includes a housing 4, a first gap 40 is formed between one end of the rotating shaft 10 and the housing 4, a second gap 41 is formed between the other end of the rotating shaft 10 and the housing 4, and the first gap 40, the second gap 41 and the central hole 11 of the rotating shaft 10 are all communicated, so as to form an oil flow passage from the second gap 41 to the central hole 11 to the first gap 40.

In one embodiment, the housing 4 and the circumferential outer wall of the rotary shaft 10 are formed with a third gap 42, the third gap 42 being in communication with the second gap 41, the third gap 42 being adapted to communicate with the oil chamber 31 of the pump unit 3.

Specifically, the third gap 42 is a gap between the pump cover bearing 43 and the rotating shaft 10, the pump unit 3 is disposed in the pump casing 46, the pump casing 46 is provided with the pump body bearing and the pump cover bearing 43, and gaps exist between the pump body bearing and the pump cover bearing 43 and the rotating shaft 10, and the gap between the pump cover bearing 43 and the rotating shaft 10 is the third gap 42 described herein. The third gap 42 can be communicated with the oil cavity 31, when the motor drives the gear 30 of the internal gear pump to rotate, the oil cavity 31 of the pump unit 3 is opened, oil flows into the third gap 42, the third gap 42 is communicated with the second gap 41, and the second gap 41 is communicated with the central hole 11, so that when the motor pump 100 works, the oil cavity 31 is opened, the oil flows into the third gap 42 from the oil cavity 31, then flows into the second gap 41 and flows into the central hole 11 of the rotating shaft 10, and a path of the oil cavity 31, the third gap 42, the second gap 41 and the central hole 11 is formed.

In one embodiment, as shown in fig. 1 and 4, the motor unit 1 includes a rotor assembly 12 and a stator assembly 13, and a first gap 14 is formed between the rotor assembly 12 and the stator assembly 13, and the first gap 14 is in communication with the first gap 40. A bearing is provided between one end of the rotating shaft 10 and the housing 4, the bearing being located on a path where the first gap 14 communicates with the first space 40, the bearing being a ball bearing 44, and the oil may pass through a gap of the ball bearing 44. That is, after the oil flows out of the oil cavity 31 of the pump unit 3, the oil sequentially passes through the third gap 42, the second gap 41, the center hole 11, the magnetic ring mounting seat 22, the magnetic ring 21, and the first gap 40, and then flows through the ball bearing 44 to enter the first gap 14 between the rotor assembly 12 and the stator assembly 13. During this flow of oil, on the one hand, the ball bearings 44 may be lubricated and cooled, and on the other hand, heat from the stator assembly 13 and the rotor assembly 12 may be carried away.

In one embodiment, a bearing is located between one end and the other end of the rotating shaft 10 in the axial direction of the rotating shaft 10.

In one embodiment, the casing 4 includes two parts, namely, a motor casing 45 and a pump casing 46, the motor casing 45 and the pump casing 46 are arranged in an axial direction of the rotary shaft 10, the motor casing 45 is connected with the pump casing 46, the motor unit 1 is disposed in the motor casing 45, and the pump unit 3 is disposed in the pump casing 46. The shell 4 is divided into a motor shell 45 and a pump shell 46, which are convenient to detach and replace.

In another embodiment, the housing 4 of the motor pump 100 is a single piece, the motor unit 1 is disposed within the housing 4, and the pump unit 3 is also disposed within the housing 4.

In one embodiment, as shown in fig. 1, a first gap 40 is formed between one end of the rotary shaft 10 and the motor case 45, and a second gap 41 is formed between the other end of the rotary shaft 10 and the pump case 46. The magnetic ring 21 and the magnetic ring mounting seat 22 are mounted at the tail end of one end of the rotating shaft 10, and the motor casing 45 is also provided with a sealing piece 5 which seals one end of the rotating shaft 10 to prevent oil leakage. Therefore, specifically, the first gap 40 is a space formed between the magnet ring 21 and the magnet ring mount 22 and the seal 5 on the motor case 45, and the first gap 40 can communicate with the ball bearing 44 and the first slit 14. Therefore, when the motor pump 100 is in operation, oil flows from the oil cavity 31 into the third gap 42, passes through the second gap 41, the central hole 11, the through hole 20 on the magnetic ring mounting seat 22, and the magnetic ring 21 to enter the first gap 40, and then flows into the bearing chamber to pass through the ball bearing 44 to reach the first gap 14.

In one embodiment, as shown in FIG. 1, the motor housing 45 is provided with a first passage 6, the pump housing 46 is provided with a second passage 7,6 in communication with the first gap 14, the second passage 7 is in communication with the oil chamber 31, and the first passage 6 is in communication with the second passage 7. A one-way valve 8 is also arranged between the second channel 7 and the oil cavity 31, and when the pressure in the second channel 7 is large, the one-way valve 8 is opened, and the oil flows back to the oil cavity 31 of the pump unit 3 from the second channel 7. Finally, when the motor pump 100 works, the oil cavity 31 is opened, oil flows out from the oil cavity 31, enters the third gap 42, passes through the second gap 41, enters the center hole 11 and the through holes 20 and the magnetic ring holes 25 on the magnetic ring mounting seat 22 at the tail end of the center hole 11, reaches the first gap 40, flows into the bearing chamber, passes through the bearing to reach the first gap 14, flows into the first channel 6 and the second channel 7, and finally returns to the oil cavity 31.

In one embodiment, the motor housing 45 may be considered as first and second oppositely disposed motor housings, and the pump housing 46 may be considered as first and second oppositely disposed pump housings, the second motor housing being a single piece with the first pump housing.

In a further embodiment, the second motor housing and the first pump housing may also be two parts, i.e. the motor unit 1 is accommodated in a cavity formed by the first motor housing and the second motor housing, and the pump unit 3 is accommodated in a cavity formed by the first pump housing and the second pump housing, and then the two parts are connected.

The present application also provides a suspension system having the electric motor pump 100 according to any of the above embodiments.

The application also provides a vehicle, which comprises the suspension system.

According to the application, through optimizing the structure of the magnetic assembly 2, the through hole 20 is arranged on the magnetic assembly 2 and is communicated with the central hole 11, so that the central hole 11 and the through hole 20 of the magnetic assembly 2 form a passage of oil into the motor, and the problem of lubrication and heat dissipation in the motor is solved. Meanwhile, in the prior art, oil is thrown out from a radial hole at the tail end of a rotating shaft 10, the oil cannot realize flow exchange with oil outside after flowing into the motor, and the oil also can increase the vibration of the motor after flowing out radially, the application arranges a through hole 20 on a magnetic component 2, so that the through hole 20 is communicated with a central hole 11 of the rotating shaft 10, the cooling oil way in which the oil flows through the motor is formed, the oil flows through the central hole 11 and the through hole 20 to enter the motor for lubrication and cooling, the oil flows, the rotating shaft 10 also has no radial oil through hole, the oil stirring loss can be reduced, the mechanical abrasion of the motor is reduced, the hydrodynamic performance is optimized, and the NVH of the motor is improved.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used herein is for the purpose of describing particular implementations only and is not intended to be limiting of the application. Terms such as "disposed" or the like as used herein may refer to either one element being directly attached to another element or one element being attached to another element through an intermediate member. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features unless the features are not applicable or otherwise indicated in the other embodiment.

The present application has been described in terms of the above embodiments, but it should be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the application to the embodiments described. Those skilled in the art will appreciate that many variations and modifications are possible in light of the teachings of the application, which variations and modifications are within the scope of the application as claimed.

Claims (18)

1. An electric motor pump, the electric motor pump comprising:

a motor unit including a rotating shaft having a central hole;

The magnetic assembly is connected with the rotating shaft and is provided with a through hole, and the through hole is communicated with the central hole to form an oil liquid flow passage.

2. The electric motor pump of claim 1, wherein the magnetic assembly is coupled to one end of the shaft.

3. The motor pump of claim 2, wherein the magnetic assembly comprises a magnetic ring and a magnetic ring mount, the magnetic ring mount is connected to the shaft, the through hole is formed in the magnetic ring mount, the magnetic ring is mounted on the magnetic ring mount, and the through hole and the central hole are both in communication with the magnetic ring.

4. A motor pump according to claim 3, wherein one end of the magnet ring mount is provided with a protrusion which cooperates with the central bore to connect the magnet ring mount with the spindle, the protrusion being provided with the through hole, the through hole communicating with the central bore.

5. The motor pump of claim 4, wherein the magnetic ring is disposed at the other end of the magnetic ring mounting hub.

6. The motor pump of claim 5, wherein the other end of the magnet ring mount is provided with a groove recessed toward one end of the magnet ring mount, the groove being configured as a mounting groove of the magnet ring.

7. The motor pump according to claim 6, wherein an extension dimension of the groove in a radial direction of the rotation shaft is larger than a diameter of the through hole.

8. The electric motor pump of any one of claims 1-7, further comprising a pump unit having an oil cavity, the other end of the shaft extending into the pump unit, the central bore communicating with the oil cavity.

9. The motor pump of claim 8, further comprising a housing, wherein one end of the shaft and the housing form a first void, and wherein the other end of the shaft and the housing form a second void, and wherein the first void and the second void are both in communication with the central bore.

10. The electric motor pump of claim 9, wherein the housing and the circumferential outer wall of the shaft form a third void, the third void being in communication with the second void, the third void being adapted to be in communication with an oil cavity of a pump unit.

11. The electric motor pump of claim 9, wherein a bearing is disposed between one end of the shaft and the housing, the electric motor unit including a rotor assembly and a stator assembly, a first gap being formed between the rotor assembly and the stator assembly, the first gap being in communication with the first gap, the bearing being located on a path through which the first gap is in communication with the first gap.

12. The motor pump of claim 11, wherein the bearing is located between one end and the other end of the rotating shaft in an axial direction of the rotating shaft.

13. The motor pump of claim 11, wherein the housing comprises a motor housing and a pump housing, the motor housing and the pump housing being arranged in an axial arrangement along the shaft, the motor housing being connected to the pump housing, the motor unit being disposed within the motor housing, the pump unit being disposed within the pump housing.

14. The electric motor pump of claim 13, wherein the motor housing is provided with a first passage, the pump housing is provided with a second passage, the first passage communicates with the first gap, the second passage communicates with the oil cavity, and the first passage communicates with the second passage.

15. The motor pump of claim 13, wherein the first gap is formed between one end of the rotating shaft and the motor housing, and the second gap is formed between the other end of the rotating shaft and the pump housing.

16. The motor pump of claim 13, wherein the motor housing comprises first and second motor housings disposed opposite each other, the pump housing comprising first and second pump housings disposed opposite each other;

The second motor housing is integral with the first pump housing.

17. A suspension system comprising the electric motor pump of any one of claims 1-16.

18. A vehicle comprising the suspension system of claim 17.