CN111327154A - Stall protection device for electric vehicle motor - Google Patents
Stall protection device for electric vehicle motor Download PDFInfo
- Publication number
- CN111327154A CN111327154A CN202010274308.0A CN202010274308A CN111327154A CN 111327154 A CN111327154 A CN 111327154A CN 202010274308 A CN202010274308 A CN 202010274308A CN 111327154 A CN111327154 A CN 111327154A
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- CN
- China
- Prior art keywords
- swing joint
- motor
- outside
- shell
- block
- 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.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
- H02K7/1021—Magnetically influenced friction brakes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to the technical field of electric vehicles and discloses a stall protection device for an electric vehicle motor, which comprises a motor and a shell, wherein the outer part of the motor is movably connected with a rotating shaft, the outer part of the rotating shaft is movably connected with a connecting block, the outer part of the connecting block is movably connected with a first spring, the outer part of the rotating shaft is movably connected with a rotating block, the inner part of the shell is fixedly connected with a limiting block, and the inner part of the shell is movably connected with a first connecting rod; through the motor, the shell, the apparatus further comprises a rotating block, a connecting block, a first spring, a rotating block, a limiting block, a first connecting rod, a second spring, and interaction between iron blocks, so that under the condition that the motor of the electric vehicle stalls, the rotating block can rotate, and further a later triggering structure runs, the triggering mode is suitable for being triggered when the rotating speed of the motor is too fast, the triggering sensitivity is also higher, the deceleration structure running after the first time triggering when the motor stalls can be realized, and the apparatus is more suitable for use of actual conditions.
Description
Technical Field
The invention relates to the technical field of electric vehicles, in particular to a stall protection device for an electric vehicle motor.
Background
Electric vehicles, namely electric drive vehicles, are also known as electric drive vehicles. Electric vehicles are classified into alternating current electric vehicles and direct current electric vehicles. Generally, an electric vehicle is a vehicle that uses a battery as an energy source, and converts electric energy into mechanical energy through a controller, a motor and other components to move so as to control the current and change the speed. The driving modes of the electric vehicle are mainly three types: one is a hub type drive, one is a central drive, and the other is a suspension type drive. Electric bicycles in the market mainly adopt hub driving, which is good in rear wheel driving, and relatively poor in front wheel driving performance. The battery is preferably placed at the position of the inclined tube or the vertical tube of the frame in consideration of the balance of the whole vehicle and the convenience of getting on and off the vehicle, and the configured battery is basically an economical and practical lead-acid battery.
The electric motor car is liked by people because its speed is moderate and economical and practical, most ordinary family can all be equipped with one in order to supply daily the riding, but the electric motor car adopts a large amount of circuits and utilizes the motor as drive assembly, the change that will probably cause the output frequency change of converter far more than the motor speed like this, and then cause the stall of motor, the stall of motor probably will cause the rotational speed of motor to exceed rated speed, and then cause the speed of electric motor car too fast, the abrupt acceleration of electric motor car speed, under the condition that people do not have time to brake the electric motor car, can bring serious bodily injury for driver and people around.
Therefore, in response to these problems, a stall protection device for an electric vehicle motor is needed.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a stall protection device for a motor of an electric vehicle, which has the advantages of controlling the rotating speed of the motor to be too high and being sensitive to triggering, and solves the problems that the rotating speed of the motor exceeds the rated rotating speed and is too high due to the stall of the motor, the rotating speed of the motor is possibly increased due to the stall of the motor, and serious personal injury is brought to a driver and people around the driver under the condition that people have no time to brake the electric vehicle due to the fact that the rotating speed of a frequency converter is possibly changed to be far beyond the rotating speed of the motor by adopting a large number of circuits and the motor is used as a driving part.
(II) technical scheme
In order to realize the purposes of controlling the motor to rotate at an excessively high speed and trigger sensitively, the invention provides the following technical scheme: the utility model provides a stall protection device for electric motor car motor, including motor and shell, the outside swing joint of motor has the pivot, the outside swing joint of pivot has the connecting block, the outside swing joint of connecting block has spring one, the outside swing joint of pivot has the commentaries on classics piece, the inside fixedly connected with stopper of shell, the inside swing joint of shell has connecting rod one, the outside swing joint of connecting rod one has spring two, the outside swing joint of connecting rod one has the iron plate, the outside movable rod of shell is connected with the slide bar, the outside swing joint of slide bar has connecting rod two, the outside fixedly connected with friction pad of connecting rod two, the one end swing joint that the slide bar was kept away from to connecting rod two has the slider, the outside swing joint of slider has the telescopic link, the.
Preferably, the motor is movably connected in the shell, the partition plate is fixedly connected in the shell, and the rotating shaft is movably connected in the partition plate.
Preferably, the outer portion of the rotating shaft is movably connected with two connecting blocks, the two connecting blocks are corresponding in position, two ends of the first spring are respectively movably connected to the outer portions of the two connecting blocks, and a friction layer is arranged on one side, away from the rotating shaft, of each connecting block.
Preferably, the specification of the rotating block is matched with the specification of the two connecting blocks, and a magnet is arranged in the rotating block.
Preferably, the outside of stopper is provided with the frictional layer, and the outside of stopper passes through frictional layer and two connecting rod one swing joint, and the both ends of spring two move about respectively in the outside of two connecting rod one, and the equal swing joint in outside of two connecting rod one has the contact, and the position phase-match of two contacts, and the specification and the position of iron plate are corresponding with magnet.
Preferably, the outside fixedly connected with slide rail of shell, the slide bar movable rod is connected in the inside of slide rail, and slider swing joint is in the outside of shell, and the specification and the position of friction pad and pivot phase-match, the one end swing joint of slider is kept away from to telescopic link and spring three in the outside of slide rail.
Preferably, the telescopic rod is electrically connected with the driving power supply and the contact.
Preferably, the magnet position inside the rotor in the initial state does not correspond to the iron block.
(III) advantageous effects
Compared with the prior art, the invention provides a stall protection device for an electric vehicle motor, which has the following beneficial effects:
1. this a stall protection device for electric motor car motor, through the motor, and a housing, the apparatus further comprises a rotating block, the stopper, connecting rod one, spring two, under the interact between the iron plate, can make the electric motor car motor take place under the situation of stall, the rotating block will rotate, and then make later trigger structure operation, such trigger mode is triggered when being fit for motor speed too fast, and the sensitivity of triggering also can be higher, can trigger later speed reduction structure operation in the very first time when the motor stall, more be fit for actual conditions's use.
2. This a stall protection device for electric motor car motor through the slide bar, connecting rod two, friction pad, slider, telescopic link, under the interact between the spring three, can make when the motor is in the rotational speed at the excessive speed, let the friction pad motion and with the pivot contact to this rotational speed that slows down the pivot, control the condition that the motor rotational speed is too fast, avoid the driver not to have access to the braking electric motor car and cause self and other people's bodily injury, more be suitable for actual conditions's emergence.
Drawings
FIG. 1 is a schematic partial cross-sectional view of the inventive structure;
FIG. 2 is a schematic view of the structure of FIG. 1 at A according to the present invention;
FIG. 3 is a schematic view of the structure of FIG. 1 at B according to the present invention;
FIG. 4 is a schematic view of a partial structure of a rotating shaft according to the present invention.
In the figure: 1. a motor; 2. a housing; 3. a rotating shaft; 4. connecting blocks; 5. a first spring; 6. rotating the block; 7. a limiting block; 8. a first connecting rod; 9. a second spring; 10. an iron block; 11. a slide bar; 12. a second connecting rod; 13. a friction pad; 14. a slider; 15. a telescopic rod; 16. and a third spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-4, a stall protection device for an electric vehicle motor comprises a motor 1 and a housing 2, wherein the outer part of the motor 1 is movably connected with a rotating shaft 3, the motor 1 is movably connected inside the housing 2, a partition board is fixedly connected inside the housing 2, and the rotating shaft 3 is movably connected inside the partition board; the outer part of the rotating shaft 3 is movably connected with connecting blocks 4, the outer part of each connecting block 4 is movably connected with a first spring 5, the outer part of the rotating shaft 3 is movably connected with two connecting blocks 4, the two connecting blocks 4 are in corresponding positions, two ends of each first spring 5 are respectively and movably connected to the outer parts of the two connecting blocks 4, and one side, away from the rotating shaft 3, of each connecting block 4 is provided with a friction layer; the outside swing joint of pivot 3 has commentaries on classics piece 6, changes the specification of 6 and the specification phase-match of two connecting blocks 4 of piece, and the inside of changeing piece 6 is provided with magnet.
A limiting block 7 is fixedly connected to the inside of the shell 2, a first connecting rod 8 is movably connected to the inside of the shell 2, a second spring 9 is movably connected to the outside of the first connecting rod 8, an iron block 10 is movably connected to the outside of the first connecting rod 8, a friction layer is arranged on the outside of the limiting block 7, the outside of the limiting block 7 is movably connected with the first connecting rods 8 through the friction layer, two ends of the second spring 9 are respectively movably connected to the outside of the first connecting rods 8, contacts are movably connected to the outside of the first connecting rods 8, the positions of the two contacts are matched, and the specification and the position of the iron block 10 correspond to those of; the magnet position in the initial state of the rotating block 6 does not correspond to the iron block 10; through motor 1, shell 2, pivot 3, connecting block 4, spring one 5, change piece 6, stopper 7, connecting rod one 8, spring two 9, under the interact between the iron plate 10, can make under the situation that electric motor car motor 1 takes place the stall, change piece 6 and will rotate, and then make later trigger structure operation, such trigger mode is fit for being triggered when the 1 rotational speed of motor is too fast, and the sensitivity of triggering also can be higher, the reduction structure operation after the very first time trigger when motor 1 stall, more be fit for actual conditions's use.
A sliding rod 11 is connected to an external movable rod of the shell 2, a second connecting rod 12 is movably connected to the external of the sliding rod 11, a friction pad 13 is fixedly connected to the external of the second connecting rod 12, a sliding block 14 is movably connected to one end, far away from the sliding rod 11, of the second connecting rod 12, a telescopic rod 15 is movably connected to the external of the sliding block 14, and the telescopic rod 15 is electrically connected with a driving power supply and a contact; a third spring 16 is movably connected to the outer part of the sliding block 14; the outside fixedly connected with slide rail of shell 2, slide bar 11 movable rod is connected in the inside of slide rail, 14 swing joint of slider is in the outside of shell 2, the specification and the position of friction pad 13 and pivot 3 phase-matches, the one end swing joint that slider 14 was kept away from to telescopic link 15 and three 16 springs is in the outside of slide rail, through slide bar 11, two connecting rods 12, friction pad 13, slider 14, telescopic link 15, under the interact between the three 16 springs, can make when motor 1 is in the rotational speed too fast, let friction pad 13 move and contact with pivot 3, slow down the slew velocity of pivot 3 with this, control the too fast condition of motor 1 rotational speed, avoid the driver not to have reached the braking electric motor car and cause self and other people's bodily injury, more be suitable for actual conditions's emergence.
The working process and the principle are that when the device starts to be started, because the outer part of the motor 1 is movably connected with the rotating shaft 3, the outer part of the rotating shaft 3 is movably connected with the connecting block 4, the outer part of the connecting block 4 is movably connected with the spring I5, the outer part of the rotating shaft 3 is movably connected with the rotating block 6, the inner part of the shell 2 is fixedly connected with the limiting block 7, the inner part of the shell 2 is movably connected with the connecting rod I8, the outer part of the connecting rod I8 is movably connected with the spring II 9, the outer part of the connecting rod I8 is movably connected with the iron block 10, the motor 1 is movably connected with the inner part of the shell 2, the inner part of the shell 2 is fixedly connected with the clapboard, the rotating shaft 3 is movably connected with the inner part of the clapboard, the outer part of the rotating shaft 3 is movably connected with the two connecting, the specification of the rotating block 6 is matched with the specification of the two connecting blocks 4, the magnet is arranged inside the rotating block 6, the friction layer is arranged outside the limiting block 7, the outside of the limiting block 7 is movably connected with the two first connecting rods 8 through the friction layer, two ends of the spring II 9 are respectively and movably arranged outside the two first connecting rods 8, the outside of the two first connecting rods 8 is movably connected with contacts, the positions of the two contacts are matched, and the specification and the position of the iron block 10 correspond to the specification and the position of the magnet; at this moment, motor 1 starts to drive pivot 3 and rotates, when motor 1 takes place the rotational speed when too fast, the slew velocity of pivot 3 accelerates, 3 slew velocities of pivot accelerate can make connecting block 4 motion under the effect of centrifugal force, connecting block 4 motion drives under the effect of frictional layer and changes piece 6 and rotate, when changeing 6 rotations and make its inside magnet move the position that corresponds with iron plate 10, magnet can attract iron plate 10 and make its motion, iron plate 10 motion drives one 8 motions of connecting rod, one 8 will lose the spacing hindrance effect of 7 outside frictional layers of stopper, and drive two 8 motions of connecting rod in opposite directions under the effect of spring two 9 restoring forces, two 8 motions of connecting rod make its outside contact.
Because the external movable rod of the shell 2 is connected with the sliding rod 11, the external part of the sliding rod 11 is movably connected with the second connecting rod 12, the external part of the second connecting rod 12 is fixedly connected with the friction pad 13, one end of the second connecting rod 12, which is far away from the sliding rod 11, is movably connected with the sliding block 14, the external part of the sliding block 14 is movably connected with the telescopic rod 15, the external part of the sliding block 14 is movably connected with the third spring 16, the external part of the shell 2 is fixedly connected with the sliding rail, the movable rod of the sliding rod 11 is connected inside the sliding rail, the sliding block 14 is movably connected outside the shell 2, the specification and the position of the friction pad 13 are matched with the rotating shaft 3, one ends, which; at the moment, the contact point is contacted, so that the driving power supply drives the telescopic rod 15 to move and contract, the telescopic rod 15 moves, so that the sliding block 14 moves and the spring III 16 contracts, the sliding block 14 moves to drive the connecting rod II 12 to move, the connecting rod II 12 moves to drive the sliding rod 11 to move under the action of the sliding rail, the sliding rod 11 moves to drive the friction pad 13 to move, and the friction pad 13 moves and is contacted with the rotating shaft 3 to achieve the effect of speed reduction.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A stall protection device for an electric vehicle motor, comprising a motor (1) and a housing (2), characterized in that: the external swing joint of the motor (1) is provided with a rotating shaft (3), the external swing joint of the rotating shaft (3) is provided with a connecting block (4), the external swing joint of the connecting block (4) is provided with a first spring (5), the external swing joint of the rotating shaft (3) is provided with a rotating block (6), the internal fixed connection of the shell (2) is provided with a limiting block (7), the internal swing joint of the shell (2) is provided with a first connecting rod (8), the external swing joint of the first connecting rod (8) is provided with a second spring (9), the external swing joint of the first connecting rod (8) is provided with an iron block (10), the external movable rod of the shell (2) is provided with a sliding rod (11), the external swing joint of the sliding rod (11) is provided with a second connecting rod (12), the external fixed joint of the second connecting rod (12) is provided with a friction pad (13), one end of the, a third spring (16) is movably connected outside the sliding block (14).
2. A stall protection arrangement for an electric vehicle motor as claimed in claim 1, wherein: motor (1) swing joint is in the inside of shell (2), and the inside fixedly connected with baffle of shell (2), pivot (3) swing joint is in the inside of baffle.
3. A stall protection arrangement for an electric vehicle motor as claimed in claim 1, wherein: the outside swing joint of pivot (3) has two connecting blocks (4) to the position of two connecting blocks (4) is corresponding, and the both ends of spring (5) swing joint respectively is in the outside of two connecting blocks (4), and one side that pivot (3) were kept away from in connecting block (4) is provided with the frictional layer.
4. A stall protection arrangement for an electric vehicle motor as claimed in claim 1, wherein: the specification of changeing piece (6) and the specification phase-match of two connecting blocks (4), the inside of changeing piece (6) is provided with magnet.
5. A stall protection arrangement for an electric vehicle motor as claimed in claim 1, wherein: the outside of stopper (7) is provided with the frictional layer, and the outside of stopper (7) is through frictional layer and two connecting rod one (8) swing joint, and the both ends of spring two (9) are moved about respectively in the outside of two connecting rod one (8), and the equal swing joint in outside of two connecting rod one (8) has the contact, and the position phase-match of two contacts, and the specification and the position of iron plate (10) are corresponding with magnet.
6. A stall protection arrangement for an electric vehicle motor as claimed in claim 1, wherein: the outside fixedly connected with slide rail of shell (2), slide bar (11) movable rod are connected in the inside of slide rail, slider (14) swing joint is in the outside of shell (2), the specification and the position of friction pad (13) and pivot (3) phase-match, and the one end swing joint that slider (14) was kept away from in telescopic link (15) and spring three (16) is in the outside of slide rail.
7. A stall protection arrangement for an electric vehicle motor as claimed in claim 1, wherein: the telescopic rod (15) is electrically connected with the driving power supply and the contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010274308.0A CN111327154A (en) | 2020-04-09 | 2020-04-09 | Stall protection device for electric vehicle motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010274308.0A CN111327154A (en) | 2020-04-09 | 2020-04-09 | Stall protection device for electric vehicle motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111327154A true CN111327154A (en) | 2020-06-23 |
Family
ID=71169787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010274308.0A Withdrawn CN111327154A (en) | 2020-04-09 | 2020-04-09 | Stall protection device for electric vehicle motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111327154A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112161010A (en) * | 2020-09-21 | 2021-01-01 | 广州镐达科技有限公司 | Stall braking mechanism of cold rolled steel paint spraying equipment for power distribution cabinet |
| CN112910169A (en) * | 2021-03-08 | 2021-06-04 | 刘彦 | Electric vehicle motor stall protection device and protection method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH360433A (en) * | 1957-04-05 | 1962-02-28 | Licentia Gmbh | Small electric motor |
| CN204271818U (en) * | 2014-12-28 | 2015-04-15 | 武汉联创恒业科技有限公司 | Automatic speed-limiting motor and crane |
| CN108429393A (en) * | 2018-05-28 | 2018-08-21 | 深圳市贝优通新能源技术开发有限公司 | A kind of motor with speed limiting function for new-energy automobile |
| CN109519318A (en) * | 2018-11-16 | 2019-03-26 | 甘雪琴 | A kind of hydroelectric power generating apparatus that the simple power generation performance of structure is good |
-
2020
- 2020-04-09 CN CN202010274308.0A patent/CN111327154A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH360433A (en) * | 1957-04-05 | 1962-02-28 | Licentia Gmbh | Small electric motor |
| CN204271818U (en) * | 2014-12-28 | 2015-04-15 | 武汉联创恒业科技有限公司 | Automatic speed-limiting motor and crane |
| CN108429393A (en) * | 2018-05-28 | 2018-08-21 | 深圳市贝优通新能源技术开发有限公司 | A kind of motor with speed limiting function for new-energy automobile |
| CN109519318A (en) * | 2018-11-16 | 2019-03-26 | 甘雪琴 | A kind of hydroelectric power generating apparatus that the simple power generation performance of structure is good |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112161010A (en) * | 2020-09-21 | 2021-01-01 | 广州镐达科技有限公司 | Stall braking mechanism of cold rolled steel paint spraying equipment for power distribution cabinet |
| CN112161010B (en) * | 2020-09-21 | 2022-01-18 | 广西广沛科技有限公司 | Stall braking mechanism of cold rolled steel paint spraying equipment for power distribution cabinet |
| CN112910169A (en) * | 2021-03-08 | 2021-06-04 | 刘彦 | Electric vehicle motor stall protection device and protection method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200623 |
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| WW01 | Invention patent application withdrawn after publication |