CN111674248A - Power assembly magnetic force suspension structure and electric automobile - Google Patents
Power assembly magnetic force suspension structure and electric automobile Download PDFInfo
- Publication number
- CN111674248A CN111674248A CN202010403251.XA CN202010403251A CN111674248A CN 111674248 A CN111674248 A CN 111674248A CN 202010403251 A CN202010403251 A CN 202010403251A CN 111674248 A CN111674248 A CN 111674248A
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- magnetic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/03—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vehicle Body Suspensions (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a power assembly magnetic force suspension structure and an electric automobile, which comprise a fixed magnetic force part, a movable magnetic force part, a limiting part, a supporting part and a base; the fixed magnetic part is fixed on the base; the movable magnetic part and the fixed magnetic part are arranged oppositely in the same magnetic level, and the movable magnetic part is connected with the supporting part; the supporting part is used for supporting the power assembly; the limiting part is used for limiting the relative position between the fixed magnetic force part and the movable magnetic force part. The invention can suspend the power assembly by utilizing the magnetic force generated by homopolar repulsion between the fixed magnetic force part and the movable magnetic force part, and can absorb and isolate vibration with large amplitude and low frequency, thereby increasing the driving comfort; and the characteristic of high magnetic response speed can be utilized to absorb and isolate ultrahigh frequency and small amplitude vibration.
Description
Technical Field
The invention relates to the technical field of electric automobile parts, in particular to a power assembly magnetic suspension structure and an electric automobile.
Background
At present, the electric automobile industry is rapidly developed, and the NVH (N: noise, V: vibration and H: sound roughness) problem of the electric automobile is more and more concerned by people; in the research on how to improve driving comfort, NVH has become an important index.
The electric automobile becomes an important trend of modern automobile development with unique social benefit and economic benefit. The generator of the electric automobile power system can generate ultrahigh frequency small-amplitude vibration during operation, and the interaction between the low frequency large-amplitude vibration generated by the electric automobile excited by the road surface and the power assembly can seriously affect the driving experience.
In order to improve the driving experience, the electric automobile widely uses the power assembly suspension structure that can play the vibration isolation and inhale the vibration effect at present, specifically has following two kinds of forms: the vibration isolation and absorption device comprises a rubber suspension structure and a hydraulic suspension structure, wherein the rubber suspension structure has poor vibration isolation and absorption performance on low-frequency large-amplitude vibration generated by road excitation; the hydraulic suspension structure has poor vibration isolation and absorption performance for ultrahigh frequency small vibration generated by the running of the generator, and has a complex structure and high price; in above two kinds of suspension structure, power assembly all links to each other with the automobile body through suspension mechanism is direct, and suspension mechanism is contact state with the automobile body, and the interact is serious, and it is great to the drive experience influence of driver. In addition, the electromagnetic control type suspension structure is high in cost, complex in structure and large in power loss, is not beneficial to endurance of the electric automobile and is not widely popularized.
Disclosure of Invention
Aiming at the technical problems in the background art, the invention provides the power assembly magnetic suspension structure and the electric automobile, wherein the power assembly magnetic suspension structure can absorb and isolate vibration with large amplitude and low frequency and can also absorb and isolate vibration with ultrahigh frequency and small amplitude.
The invention is realized by the following technical scheme:
a magnetic suspension structure of a power assembly comprises a fixed magnetic part, a movable magnetic part, a limiting part, a supporting part and a base; the fixed magnetic part is fixed on the base; the movable magnetic part and the fixed magnetic part are arranged oppositely in the same magnetic level, and the movable magnetic part is connected with the supporting part; the supporting part is used for supporting the power assembly; the limiting part is used for limiting the relative position between the fixed magnetic force part and the movable magnetic force part.
Further, the fixed magnetic part comprises a fixed magnet and a fixed magnetic part protective sleeve sleeved on the fixed magnet; the movable magnetic force part comprises a movable magnet and a movable magnetic force part protective sleeve sleeved on the movable magnet.
Furthermore, the supporting part comprises a supporting rod, and a supporting rod connecting hole is formed in the protective sleeve of the movable magnetic force part; the support rod is connected with the movable magnetic force part protective sleeve through the support rod connecting hole.
Furthermore, the fixed magnetic force part protective sleeve and the movable magnetic force part protective sleeve are made of rubber.
Further, the device also comprises a protective cover, wherein the protective cover is connected with the base; the fixed magnetic part and the movable magnetic part are arranged in an inner space formed by the protective cover and the base.
Further, the limiting part comprises at least two limiting parts;
the two limiting parts are respectively arranged at two sides of the movable magnetic part; at least two mounting grooves are formed in the positions, opposite to the two sides of the movable magnetic force part, of the protective cover, and the at least two limiting pieces are respectively arranged in the at least two mounting grooves; the limiting part can move along the mounting groove under the action of magnetic force between the fixed magnetic part and the movable magnetic part.
Optionally, the limiting part comprises a fixed limiting rod; two ends of the fixed limiting rod respectively penetrate through the fixed magnetic part and the movable magnetic part; the movable magnetic force part can move along the axis of the fixed limiting rod under the action of magnetic force between the fixed magnetic force part and the movable magnetic force part.
Optionally, the limiting part comprises a spring and a cylinder sleeve structure; the spring is arranged inside the cylinder sleeve structure; one end of the spring is connected to the base, and the other end of the spring is connected to the movable magnetic part; the cylinder sleeve structure comprises an outer cylinder sleeve and an inner cylinder sleeve; one of the outer cylinder sleeve and the inner cylinder sleeve is fixed to the base, and the other of the outer cylinder sleeve 341 and the inner cylinder sleeve is connected to the movable magnetic force part.
Further, the fixed magnets comprise a first fixed magnet and a second fixed magnet which are symmetrically distributed on two sides of the power assembly; the movable magnet comprises a first movable magnet and a second movable magnet which are symmetrically distributed on two sides of the power assembly; the supporting part comprises a first supporting part and a second supporting part, and the first supporting part and the second supporting part are respectively connected to two ends of the power assembly.
The invention also discloses an automobile which comprises any one of the power assembly magnetic suspension structures.
By adopting the technical scheme, the magnetic suspension structure of the power assembly disclosed by the invention has the following beneficial effects: the device is provided with a fixed magnetic part, a movable magnetic part, a limiting part, a supporting part and a base; the fixed magnetic part is fixed on the base; the movable magnetic part and the fixed magnetic part are oppositely arranged in the same magnetic level, and the movable magnetic part is connected with the supporting part; the supporting part is used for supporting the power assembly; the limiting part is used for limiting the relative position between the fixed magnetic force part and the movable magnetic force part, and only one moving pair in the magnetic force direction is arranged between the fixed magnetic force part and the movable magnetic force part under the action of the limiting part; the power assembly can be suspended by utilizing the magnetic force generated by homopolar repulsion between the fixed magnetic force part and the movable magnetic force part, so that vibration with large amplitude and low frequency is absorbed and isolated, and the driving comfort is improved; and the characteristic of high magnetic response speed can be utilized to absorb and isolate ultrahigh frequency and small amplitude vibration.
Drawings
Fig. 1 is a schematic view of a magnetic suspension structure of a powertrain according to embodiment 1 of the present invention;
FIG. 2 is a view A-A of FIG. 1;
FIG. 3 is a schematic diagram showing the magnetic force directions of the same-stage arrangement of magnets;
FIG. 4 is a schematic diagram of a powertrain magnetic suspension configuration according to an embodiment 2 of the present invention;
FIG. 5 is a schematic diagram of a powertrain magnetic suspension configuration according to an embodiment 3 of the present invention;
wherein the reference numerals in the figures correspond to: 1-fixed magnetic force part, 11-fixed magnet, 12-fixed magnetic force part protective sleeve, 2-movable magnetic force part, 21-movable magnet, 22-movable magnetic force part protective sleeve, 221-supporting rod connecting hole, 3-limiting part, 4-supporting part, 5-base, 6-protective cover, 8-power assembly, 31-limiting part, 32-fixed limiting rod, 33-spring, 34-cylinder sleeve structure, 341-outer cylinder sleeve and 342-inner cylinder sleeve.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the embodiment of the invention discloses a magnetic suspension structure of a power assembly, which is characterized by comprising a fixed magnetic part 1, a movable magnetic part 2, a limiting part 3, a supporting part 4 and a base 5; the fixed magnetic part 1 is fixed on the base 5; the movable magnetic part 2 and the fixed magnetic part 1 are oppositely arranged in the same magnetic level, and the movable magnetic part 2 is connected with the supporting part 4; the supporting part 4 is used for supporting the power assembly 8; the limiting part 3 is used for limiting the relative position between the fixed magnetic part 1 and the movable magnetic part 2.
The embodiment of the invention is provided with a fixed magnetic part 1, a movable magnetic part 2, a limiting part 3, a supporting part 4 and a base 5; and the fixed magnetic part 1 is fixed on the base 5; the movable magnetic part 2 and the fixed magnetic part 1 are oppositely arranged in the same magnetic level, and the movable magnetic part 2 is connected with the support part 4; the support part 4 is used for supporting the power assembly 8; the limiting part 3 is used for limiting the relative position between the fixed magnetic part 1 and the movable magnetic part 2, and only one moving pair in the magnetic direction is arranged between the fixed magnetic part and the movable magnetic part under the action of the limiting part 3; the magnetic force generated by homopolar repulsion between the fixed magnetic part 1 and the movable magnetic part 2 can be used for suspending the power assembly 8, so that vibration with large amplitude and low frequency is absorbed and isolated, and the driving comfort is improved; and the characteristic of high magnetic response speed can be utilized to absorb and isolate ultrahigh frequency and small amplitude vibration.
The invention is illustrated in more detail below in three specific examples.
Example 1
As shown in fig. 1 and 2, a power assembly magnetic suspension structure according to embodiment 1 of the present invention includes a fixed magnetic portion 1, a movable magnetic portion 2, a limiting portion 3, a supporting portion 4, a base 5, and a protective cover 6; the fixed magnetic part 1 is fixed on the base 5, and the fixed magnetic part 1 comprises a fixed magnet 11 and a fixed magnetic part protective sleeve 12 which is sleeved on the fixed magnet 11 and plays a role in protection; the movable magnetic part 2 and the fixed magnetic part 1 are arranged oppositely at the same magnetic level, as shown in fig. 3, a mutual repulsive magnetic force is generated between the movable magnetic part 2 and the fixed magnetic part 1; the movable magnetic force part 2 comprises a movable magnet 21 and a movable magnetic force part protective sleeve 22 which is sleeved on the movable magnet 21 and plays a role in protection; optionally, the fixed magnetic force portion protecting jacket 12 and the movable magnetic force portion protecting jacket 22 can be made of rubber materials with good shock resistance and low cost; the movable magnetic force part 2 is further connected with a support part 4, specifically, as an optional installation mode, the support part 4 comprises a support rod, and the movable magnetic force part protective sleeve 22 is provided with a support rod connecting hole 221; the support bar is connected with the movable magnetic force part protecting sleeve 22 through the support bar connecting hole 221. The support part 4 is used for supporting the power assembly 8; thus, the repulsive magnetic force between the fixed magnetic part 1 and the movable magnetic part 2 enables the power assembly 8 to be in a suspended state through the supporting part 4; the limiting part 3 is used for limiting the relative position between the fixed magnetic part 1 and the movable magnetic part 2, and under the action of the limiting part 3, only one moving pair in the magnetic force direction is arranged between the fixed magnetic part 1 and the movable magnetic part 2, so that the position relation between the fixed magnetic part 1 and the movable magnetic part 2 is prevented from being changed; specifically, the limiting part 3 includes at least two limiting members 31; the at least two limiting pieces 31 are respectively arranged on two sides of the movable magnetic part 2; at least two mounting grooves 61 are formed in the positions of the protective cover 6 opposite to the two sides of the movable magnetic part 2, and the at least two limiting pieces 31 are respectively arranged in the at least two mounting grooves 61; the limiting part 3 can move along the mounting groove 61 under the action of the magnetic force between the fixed magnetic part 1 and the movable magnetic part 2; in this way, the movable magnetic force part 2 can move only in the magnetic force acting direction between the fixed magnetic force part 1 and the movable magnetic force part 2. Moreover, for further protection, the protective cover 6 is connected with the base 5; the fixed magnetic part 1 and the movable magnetic part 2 are arranged in an inner space formed by the protective cover 6 and the base 5. The magnetic force suspension structure of the power assembly related to the embodiment 1 of the invention can suspend the power assembly by utilizing the magnetic force generated by homopolar repulsion between the fixed magnetic force part 1 and the movable magnetic force part 2, so as to absorb and isolate vibration with large amplitude and low frequency and increase driving comfort; and the characteristic of high magnetic response speed can be utilized to absorb and isolate ultrahigh frequency and small amplitude vibration. Further, in order to make the suspension of the powertrain 8 more stable, the fixed magnet 11 includes a first fixed magnet 111 and a second fixed magnet 112 symmetrically distributed on both sides of the powertrain 8; the movable magnet 21 comprises a first movable magnet 211 and a second movable magnet 212 which are symmetrically distributed on two sides of the power assembly 8; the support portion 4 includes a first support member 41 and a second support member 42, the first support member 41 and the second support member 42 are respectively connected to two ends of the power assembly 8, so that the two ends of the power assembly 8 are respectively subjected to the acting force from the first support member 41 and the second support member 42, and the suspension is more stable.
Example 2
The magnetic suspension structure of the power assembly related to embodiment 2 of the invention is different from embodiment 1 only in the structure of the limiting part 3.
As another alternative to the position restricting part 3, in embodiment 2 of the present invention, as shown in fig. 4, the position restricting part 3 includes a fixed restricting rod 32; the two ends of the fixed limiting rod 32 respectively penetrate through the fixed magnetic part 1 and the movable magnetic part 2; the movable magnetic force part 2 is movable along the axis of the fixed restricting lever 32 by the magnetic force between the fixed magnetic force part 1 and the movable magnetic force part 2.
Example 3
The magnetic suspension structure of the power assembly related to embodiment 3 of the invention is different from embodiment 1 only in the structure of the limiting part 3.
As a further alternative of the position limiting portion 3, in embodiment 3 of the present invention, as shown in fig. 5, the position limiting portion 3 includes a spring 33 and a cylinder liner structure 34; the spring 33 is arranged inside the cylinder sleeve structure 34; one end of the spring 33 is connected to the base 5, and the other end of the spring 33 is connected to the movable magnetic part 2; the cylinder liner structure 34 includes an outer cylinder liner 341 and an inner cylinder liner 342; one of the outer cylinder sleeve 341 and the inner cylinder sleeve 342 is fixed on the base 5, and the other of the outer cylinder sleeve 341 and the inner cylinder sleeve 342 is connected to the movable magnetic force part 2.
The embodiment of the invention also discloses an automobile, and the magnetic suspension structure of the power assembly in any embodiment is applied.
While only three preferred embodiments of the present invention have been disclosed, it is to be understood that the present invention is not limited thereto, and that modifications and variations may be made by those skilled in the art without departing from the spirit of the invention.
Claims (10)
1. A magnetic suspension structure of a power assembly is characterized by comprising a fixed magnetic part (1), a movable magnetic part (2), a limiting part (3), a supporting part (4) and a base (5);
the fixed magnetic part (1) is fixed on the base (5);
the movable magnetic part (2) and the fixed magnetic part (1) are oppositely arranged in the same magnetic level, and the movable magnetic part (2) is connected with the supporting part (4);
the supporting part (4) is used for supporting the power assembly (8);
the limiting part (3) is used for limiting the relative position between the fixed magnetic force part (1) and the movable magnetic force part (2).
2. The powertrain magnetic suspension structure of claim 1, characterized in that the fixed magnetic portion (1) comprises a fixed magnet (11) and a fixed magnetic portion protective sleeve (12) sleeved on the fixed magnet (11); the movable magnetic force part (2) comprises a movable magnet (21) and a movable magnetic force part protective sleeve (22) sleeved on the movable magnet (21).
3. The powertrain magnetic suspension structure of claim 2, characterized in that the support portion (4) comprises a support rod, and the movable magnetic portion protection sleeve (22) is provided with a support rod connection hole (221); the supporting rod is connected with the movable magnetic force part protective sleeve (22) through the supporting rod connecting hole (221).
4. The powertrain magnetic suspension structure of claim 2, characterized in that the fixed magnetic force portion protecting sleeve (12) and the movable magnetic force portion protecting sleeve (22) are made of rubber.
5. The magnetic power assembly suspension structure of any one of claims 1 to 4, characterized by further comprising a protective cover (6), wherein the protective cover (6) is connected with the base (5); the fixed magnetic part (1) and the movable magnetic part (2) are arranged in an inner space formed by the protective cover (6) and the base (5).
6. The powertrain magnetic suspension structure of claim 5, characterized in that the limit part (3) comprises at least two limit pieces (31);
the two limiting pieces (31) are respectively arranged on two sides of the movable magnetic force part (2);
at least two mounting grooves (61) are formed in the positions, opposite to the two sides of the movable magnetic force part (2), of the protective cover (6), and the at least two limiting pieces (31) are respectively arranged in the at least two mounting grooves (61);
the limiting part (3) can move along the mounting groove (61) under the action of magnetic force between the fixed magnetic part (1) and the movable magnetic part (2).
7. The powertrain magnetic suspension structure of claim 5, characterized in that the stopper portion (3) includes a fixed stopper rod (32);
two ends of the fixed limiting rod (32) respectively penetrate through the fixed magnetic part (1) and the movable magnetic part (2);
the movable magnetic part (2) can move along the axis of the fixed limiting rod (32) under the action of magnetic force between the fixed magnetic part (1) and the movable magnetic part (2).
8. The powertrain magnetic suspension structure of claim 5, characterized in that the limit part (3) comprises a spring (33) and a cylinder sleeve structure (34);
the spring (33) is arranged inside the cylinder sleeve structure (34); one end of the spring (33) is connected to the base (5), and the other end of the spring (33) is connected to the movable magnetic part (2); the cylinder sleeve structure (34) comprises an outer cylinder sleeve (341) and an inner cylinder sleeve (342); one of the outer cylinder sleeve (341) and the inner cylinder sleeve (342) is fixed on the base (5), and the other of the outer cylinder sleeve (341) and the inner cylinder sleeve (342) is connected to the movable magnetic force part (2).
9. The powertrain magnetic suspension structure of any one of claims 1 to 4, 6 to 8, characterized in that the stationary magnets (11) include a first stationary magnet (111) and a second stationary magnet (112) symmetrically distributed on both sides of the powertrain (8); the movable magnet (21) comprises a first movable magnet (211) and a second movable magnet (212) which are symmetrically distributed on two sides of the power assembly (8); the supporting part (4) comprises a first supporting part (41) and a second supporting part (42), and the first supporting part (41) and the second supporting part (42) are respectively connected to two ends of the power assembly (8).
10. An electric vehicle characterized by applying the powertrain magnetic suspension structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010403251.XA CN111674248A (en) | 2020-05-13 | 2020-05-13 | Power assembly magnetic force suspension structure and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010403251.XA CN111674248A (en) | 2020-05-13 | 2020-05-13 | Power assembly magnetic force suspension structure and electric automobile |
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| Publication Number | Publication Date |
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| CN111674248A true CN111674248A (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010403251.XA Pending CN111674248A (en) | 2020-05-13 | 2020-05-13 | Power assembly magnetic force suspension structure and electric automobile |
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| Country | Link |
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| CN (1) | CN111674248A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178097A (en) * | 2020-09-25 | 2021-01-05 | 中国直升机设计研究所 | Large overload shock absorber |
| CN112343951A (en) * | 2020-11-03 | 2021-02-09 | 中国直升机设计研究所 | Large overload shock absorber and mounting mechanism thereof |
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| CN105546024A (en) * | 2016-02-23 | 2016-05-04 | 重庆长安汽车股份有限公司 | Multi-mode semi-active hydraulic suspension |
| CN108482094A (en) * | 2018-05-14 | 2018-09-04 | 合肥工业大学 | A kind of rubber mounting with energy recovery function and variable rigidity |
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|---|---|---|---|---|
| KR910009480A (en) * | 1989-11-29 | 1991-06-28 | 시끼 모리야 | Car suspension |
| CN101368610A (en) * | 2008-07-11 | 2009-02-18 | 奇瑞汽车股份有限公司 | Power assembly hydraulic suspension |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178097A (en) * | 2020-09-25 | 2021-01-05 | 中国直升机设计研究所 | Large overload shock absorber |
| CN112178097B (en) * | 2020-09-25 | 2022-07-15 | 中国直升机设计研究所 | Large overload shock absorber |
| CN112343951A (en) * | 2020-11-03 | 2021-02-09 | 中国直升机设计研究所 | Large overload shock absorber and mounting mechanism thereof |
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Effective date of registration: 20220328 Address after: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Applicant after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Applicant after: Zhejiang liankong Technology Co.,Ltd. Address before: 315336 818 Binhai two road, Hangzhou Bay New District, Ningbo, Zhejiang Applicant before: NINGBO GEELY AUTOMOBILE RESEARCH AND DEVELOPMENT Co.,Ltd. Applicant before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. |
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