CN112657209A - Device for preventing motor stall collision of toy car - Google Patents
Device for preventing motor stall collision of toy car Download PDFInfo
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- CN112657209A CN112657209A CN202011413916.1A CN202011413916A CN112657209A CN 112657209 A CN112657209 A CN 112657209A CN 202011413916 A CN202011413916 A CN 202011413916A CN 112657209 A CN112657209 A CN 112657209A
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Abstract
The invention relates to the technical field of toy accessories and discloses a device for preventing motor stall collision of a toy car, which comprises a car body, wherein non-Newtonian fluid is arranged in the car body, a top plate is movably connected to the outside of the car body, a supporting spring is fixedly connected to the outside of the top plate, a clamping assembly is movably connected to the inside of the car body, a hub is movably connected to the outside of the car body, and a rotating shaft is fixedly connected to the outside of the hub, so that when the motor stall is not controlled, the rotating shaft is decelerated through the device to prevent the motor stall from colliding due to too high speed, and meanwhile, when the collision occurs, the collision force is weakened, the car body cannot be damaged due to too high collision force, so that a hard object can be collided to buffer the collision force and emergently brake the car body, the vehicle body can be automatically decelerated when the motor stalls, and the vehicle body is protected.
Description
Technical Field
The invention relates to the technical field of toy accessories, in particular to a device for preventing a motor of a toy car from stalling and colliding.
Background
The toy car is a toy for children to play which is reduced according to the basic structure and the modeling appearance of the car in a certain proportion, the existing toy cars are roughly divided into an inertia type toy car, a mechanical type toy car, an electric remote control type toy car and the like, the existing electric remote control type toy cars are mostly driven by a motor, plastic materials are used as shells, but the plastic shells are easy to crack after being impacted, and the integrity of the plastic shells is greatly reduced.
When the remote control toy car normally travels, people can change the action track of the remote control toy car through a controller in a hand, so that more diversified playing methods are achieved, sometimes people can not concentrate on the toy car to collide the wall, when some small problems occur in the motor, the motor can be stalled, at the moment, the remote control toy car can suddenly and rapidly go out of control, at the moment, the remote control toy car only stops through external force, but the toy car is fast and extremely easy to collide the wall or some hard objects, at the moment, a plastic shell outside the toy car can be broken due to violent impact, and the toy car is damaged.
Therefore, in response to these problems, a device for preventing the motor of a toy car from stalling and colliding is needed.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a device for preventing the motor of the toy car from stalling and colliding, which has the advantages that the collision force can be buffered when the toy car collides with a hard object, the toy car can be braked emergently, the toy car can be decelerated automatically when the motor stalls, and the problems that the shell of the toy car is easy to break after the toy car collides with the hard object, and the toy car is not controlled when the motor stalls are solved.
(II) technical scheme
In order to achieve the purposes that the impact force can be buffered and the emergency braking can be carried out when the hard object is collided, and the automatic deceleration can be carried out when the motor stalls, the invention provides the following technical scheme: a device for preventing motor stall collision of a toy car comprises a car body, wherein non-Newtonian fluid is arranged inside the car body, a top plate is movably connected to the outside of the car body, a supporting spring is fixedly connected to the outside of the top plate, a clamping assembly is movably connected to the inside of the car body, a hub is movably connected to the outside of the car body, a rotating shaft is fixedly connected to the outside of the hub, a square shell is fixedly connected to the inside of the rotating shaft, a telescopic spring is fixedly connected to the inside of the square shell, a box body is fixedly connected to the outside of the telescopic spring, a conductor is fixedly connected to the inside of the box body, a magnetic block is fixedly connected to the inside of the box body, a fixed shell is movably connected to the inside of the fixed shell, a short spring is fixedly connected to the inside of the fixed shell, a top block is fixedly connected, the inside fixedly connected with of plectane connects the shell, connects the outside fixedly connected with electro-magnet of shell.
Preferably, the main component of the non-Newtonian fluid is polyacrylamide, a baffle is fixedly connected to the interior of the vehicle body, the non-Newtonian fluid is arranged in a space formed between the left side of the baffle and the vehicle body, the volume of the non-Newtonian fluid occupies three quarters of the volume of the space formed between the baffle and the vehicle body, the supporting spring is movably connected to the interior of the non-Newtonian fluid, and the touch panel is fixedly connected to the interior of the vehicle body.
Preferably, the centre gripping subassembly is mainly by support frame, cylinder, catch bar, knee one, knee two, the connecting plate, the grip block is constituteed, support frame fixed connection is in the inside of automobile body, cylinder fixed connection is in the inboard of support frame, knee one, the equal swing joint of knee two is in the outside of support frame, catch bar swing joint is in the outside of cylinder, two fixed connection of knee are in the outside of catch bar, the outside of connecting rod swing joint support frame, knee one, the equal swing joint of knee is in the outside of connecting rod, the grip block has two, two grip blocks are fixed connection respectively in the outside of knee one and knee two.
Preferably, the square groove has been seted up to the inside of pivot, and the specification phase-match of the specification of square groove and square shell, square shell fixed connection are in the inboard of square groove, and the surface of box is seted up porosely, and the specification phase-match of the specification in hole and kicking block, square shell, expanding spring, box, conductor, magnetic path are constituteed and are a fixed subassembly, and six are no less than to fixed subassembly's quantity, and the even distribution of angles such as all fixed subassemblies is in the outside of pivot.
Preferably, the inside of set casing is provided with the current variant, the volume of current variant occupies three quarters of the internal volume of set casing, the main material of current variant is gypsum, lime, carbon powder and olive oil, the current variant is solid under the circular telegram state of specified amperage, be liquid under the non-circular telegram state, the inside of current variant is provided with leads electrical pillar, the inside fixedly connected with two short springs of set casing, two short spring equal fixed connection are in the outside of kicking block, two short spring swing joint are in the inside of current variant, the set casing, two short springs, the kicking block is constituteed and is a coupling assembling, coupling assembling is no less than four in the outside of every box, four coupling assembling symmetric distributions are in the outside of box.
Preferably, the inside of coil is led to there is the electric current, and the coil produces the magnetic induction line under the effect of electric current, and the conductor perpendicular to magnetic induction line motion produces induced-current, connects the inside of shell and offers the hole with kicking block specification assorted, and the inside fixedly connected with contact in every hole, the quantity of connecting shell, electro-magnet is all not less than six, and the equal angular uniform distribution of all connecting shells is in the outside of plectane, and the box is corresponding with the specification phase-match and the position of connecting the shell.
Preferably, the coil, the electromagnet, the conductive column and the cylinder are electrically connected with a storage battery, the rotating shaft is electrically connected with a driving power supply, and the storage battery, the driving power supply, the contact and the touch panel are electrically connected with the control center.
Preferably, the electromagnet generates a magnetic pole opposite to that of the magnetic block after being electrified, and adsorbs the magnetic block.
(III) advantageous effects
Compared with the prior art, the invention provides a device for preventing the stalling and collision of the motor of the toy car, which has the following beneficial effects:
1. this prevent device of toy car motor stall collision, through non-Newtonian fluid, the roof, supporting spring, under the interact between the centre gripping subassembly, can make when the automobile body outside receives the striking, non-Newtonian fluid becomes the colloidal state under outside sudden impact effect, slows down outside impact, and in time carry out scram to the pivot through the centre gripping subassembly, can not make automobile body itself cause destruction because of some reasons, thereby reached and can cushion its impact and carry out emergency braking's effect to it hitting hard object, just so protected user's property safety.
2. This prevent device of toy car motor stall collision, through the interact between all structures of this device, can be so that when motor stall is uncontrolled, decelerate for the pivot through this device, thereby prevent it because of the too fast emergence collision of speed, and can weaken the impact force when the emergence collision simultaneously, can not cause automobile body itself to cause destruction because the impact force is too big, thereby reached and collided hard object and can cushion its impact force and carry out emergency braking to it, effect that can automatic deceleration when motor stall, automobile body itself has been protected.
Drawings
FIG. 1 is a schematic view of the present invention in partial cross section;
FIG. 2 is a schematic view of a connection structure between the vehicle body and the clamping assembly according to the present invention;
FIG. 3 is a schematic view of the structure of FIG. 2 at A according to the present invention;
FIG. 4 is a schematic structural diagram of a connection relationship between partial structures according to the present invention;
FIG. 5 is a schematic view of the structure at B in FIG. 4 according to the present invention.
FIG. 6 is a schematic structural diagram of the connection relationship among the rotating shaft, the square casing, the telescopic spring, the box body, the conductor, the magnetic block, the fixed casing, the short spring and the ejector block.
FIG. 7 is a schematic view of the structure of FIG. 6 at C according to the present invention.
In the figure: 1. a vehicle body; 2. a non-Newtonian fluid; 3. a top plate; 4. a support spring; 5. a clamping assembly; 6. a hub; 7. a rotating shaft; 8. a square shell; 9. a tension spring; 10. a box body; 11. a conductor; 12. a magnetic block; 13. a stationary case; 14. a short spring; 15. a top block; 16. a support housing; 17. a coil; 18. a circular plate; 19. a connecting shell; 20. an electromagnet.
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. 1-7, a device for preventing a motor of a toy car from stalling and colliding comprises a car body 1, a non-newtonian fluid 2 is arranged inside the car body 1, a top plate 3 is movably connected to the outside of the car body 1, a supporting spring 4 is fixedly connected to the outside of the top plate 3, the main component of the non-newtonian fluid 2 is polyacrylamide, a baffle is fixedly connected to the inside of the car body 1, the non-newtonian fluid 2 is arranged inside a space formed between the left side of the baffle and the car body 1, the volume of the non-newtonian fluid 2 occupies three quarters of the volume of the space formed between the baffle and the car body 1, the supporting spring 4 is movably connected to the inside of the non-newtonian fluid 2, and a.
The interior of the vehicle body 1 is movably connected with a clamping component 5, the clamping component 5 mainly comprises a support frame, an air cylinder, a push rod, a first bent rod, a second bent rod, a connecting plate and clamping blocks, the support frame is fixedly connected inside the vehicle body 1, the air cylinder is fixedly connected on the inner side of the support frame, the first bent rod and the second bent rod are movably connected on the exterior of the support frame, the push rod is movably connected on the exterior of the air cylinder, the second bent rod is fixedly connected on the exterior of the push rod, the connecting rod is movably connected on the exterior of the support frame, the first bent rod and the second bent rod are movably connected on the exterior of the connecting rod, the two clamping blocks are respectively and fixedly connected on the exterior of the first bent rod and the second bent rod, and under the interaction among the non-Newtonian fluid 2, the top plate 3, the supporting spring 4 and the clamping component 5, the non-Newtonian fluid 2 can be changed into a, external impact force is slowed down, the rotating shaft 7 is immediately stopped through the clamping component 5, damage to the vehicle body 1 can not be caused due to some reasons, the effect that the impact force of the hard object can be buffered and the hard object is emergently braked is achieved, and therefore property safety of a user is protected.
External swing joint of automobile body 1 has wheel hub 6, wheel hub 6's outside fixedly connected with pivot 7, the inside fixedly connected with square shell 8 of pivot 7, the inside fixedly connected with expanding spring 9 of square shell 8, expanding spring 9's outside fixedly connected with box 10, the inside fixedly connected with conductor 11 of box 10, the inside fixedly connected with magnetic path 12 of box 10, the square groove has been seted up to the inside of pivot 7, the specification of square groove and the specification phase-match of square shell 8, 8 fixed connection of square shell are in the inboard of square groove, the surface of box 10 is seted up porosely, the specification in hole and the specification phase-match of kicking block 15, square shell 8, expanding spring 9, box 10, conductor 11, magnetic path 12 is constituteed to a fixed subassembly, six fixed subassembly's quantity is no less than, the even distribution of angle such as all fixed subassemblies is in the outside of pivot 7.
The inner part of the box body 10 is movably connected with a fixed shell 13, the inner part of the fixed shell 13 is fixedly connected with a short spring 14, the outer part of the short spring 14 is fixedly connected with a top block 15, the inner part of the fixed shell 13 is provided with an electrorheological body, the volume of the electrorheological body occupies three quarters of the inner volume of the fixed shell 13, the main materials of the electrorheological body are gypsum, lime, carbon powder and olive oil, the electrorheological body is in a solid state under the electrified state with a specified current amount and in a liquid state under the non-electrified state, a conductive column is arranged in the electrorheological body, the inner part of the fixed shell 13 is fixedly connected with two short springs 14, the two short springs 14 are both fixedly connected with the outer part of the top block 15, the two short springs, two short springs 14, kicking block 15 constitute and are a coupling assembling, and four coupling assembling are no less than four in the outside of every box 10, and four coupling assembling symmetric distribution are in the outside of box 10.
The outside swing joint of pivot 7 has support shell 16, the inside fixedly connected with coil 17 of support shell 16, the inside fixedly connected with plectane 18 of support shell 16, the inside fixedly connected with of plectane 18 connects shell 19, the outside fixedly connected with electro-magnet 20 of connection shell 19, the inside of coil 17 is circular, coil 17 produces the magnetic induction line under the effect of electric current, conductor 11 perpendicular to magnetic induction line motion, produce induced current, the inside of connecting shell 19 is seted up and is had the hole with 15 specification assorted of kicking block, the inside fixedly connected with contact in every hole, connecting shell 19, the quantity of electro-magnet 20 is all not less than six, all connecting shells 19 equal angular uniform's distribution is in the outside of plectane 18, box 10 is with the specification phase-match and the position of connecting shell 19 corresponding.
The device starts to be started, a user controls the driving power supply to drive the rotating shaft 7 to rotate through the control center, the rotating shaft 7 normally rotates to drive the hub 6 to rotate, the rotating shaft 7 normally rotates to drive the square shell 8 to move, the square shell 8 moves to drive the telescopic spring 9 and the box body 10 to move, at the moment, the box body 10 cannot overcome the restoring force of the telescopic spring 9, the box body 10 cannot be thrown out, the toy car normally operates, the car body 1 collides with an external hard object, at the moment, the top plate 3 can compress the supporting spring 4 under the action of the impacting force and touch the touch plate, the top plate 3 suddenly impacts the non-Newtonian fluid 2, so that the non-Newtonian fluid 2 is changed from a liquid state to a colloidal state, the change of the supporting spring 4 is limited, the impacting force applied to the car body 1 is reduced, at the moment, the control center controls the driving, the cylinder is electrified to enable the push rod to move outwards, the push rod moves outwards to drive the bent rod II to move, the bent rod II moves under the action of the connecting rod to drive the bent rod I to move, the bent rod I and the bent rod II move to drive the clamping block to move, the clamping block moves to clamp the rotating shaft 7 inwards, the rotating shaft 7 is braked emergently, the rotating shaft 7 stops rotating, and the toy car stops moving.
When a user controls the toy car to normally run, the motor suddenly stalls to enable the rotating shaft 7 to stall and rotate, the rotating shaft 7 stalls and rotates, the conductor 11 rotates to cut a magnetic induction line generated by the coil 17, the conductor 11 generates induction current, at the moment, the box body 10 can overcome the restoring force of the telescopic spring 9 to enable the box body 10 to be thrown out, the box body 10 moves to drive the conductor 11, the magnetic block 12, the fixed shell 13, the short spring 14 and the ejector block 15 to move, when the box body 10 moves to be opposite to the connecting shell 19, the box body 10 enters the connecting shell 19, at the moment, the ejector block 15 compresses the short spring 14 to enable the ejector block 15 to enter the connecting shell 19, when the ejector block 15 is opposite to the hole on the surface of the connecting shell 19, the ejector block 15 enables the ejector block 15 to enter the hole of the connecting shell 19 under the restoring force of the short spring 14, at the moment, the ejector block 15 touches a contact point in the hole, at this moment, the control center controls the storage battery to electrify the conducting post, so that the current variant is changed from a liquid state to a solid state to prevent the deformation of the short spring 14, the ejector block 15 is fixed inside the hole, meanwhile, the control center controls the storage battery to supply power to the electromagnet 20, at this moment, the electromagnet 20 generates magnetism to adsorb the magnetic block 12, the box body 10 is embedded inside the connecting shell 19, the box body 10 stops moving the rotating shaft 7 under the action of the circular plate 18, the sudden and rapid operation of the motor in a stall state is prevented, the rotating shaft 7 stops rotating, at this moment, the control center controls the storage battery to stop supplying power to the electromagnet 20, the magnetism of the electromagnet 20 disappears to no longer adsorb the magnetic block 12, and at this moment, the box body 10 is.
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 device for preventing motor stall collision of a toy vehicle comprises a vehicle body (1), and is characterized in that: the non-Newtonian fluid type wheel hub is characterized in that a non-Newtonian fluid (2) is arranged inside the vehicle body (1), a top plate (3) is movably connected to the outside of the vehicle body (1), a supporting spring (4) is fixedly connected to the outside of the top plate (3), a clamping assembly (5) is movably connected to the inside of the vehicle body (1), a wheel hub (6) is movably connected to the outside of the vehicle body (1), a rotating shaft (7) is fixedly connected to the outside of the wheel hub (6), a square shell (8) is fixedly connected to the inside of the rotating shaft (7), a telescopic spring (9) is fixedly connected to the inside of the square shell (8), a box body (10) is fixedly connected to the outside of the telescopic spring (9), a conductor (11) is fixedly connected to the inside of the box body (10), a magnetic block (12) is fixedly connected to the inside of the box body (, the outer fixed connection of short spring (14) has kicking block (15), and the outside swing joint of pivot (7) has support shell (16), and the inside fixedly connected with coil (17) of support shell (16), the inside fixedly connected with plectane (18) of support shell (16), the inside fixedly connected with connection shell (19) of plectane (18), the outside fixedly connected with electro-magnet (20) of connection shell (19).
2. The apparatus for preventing a toy vehicle motor stall collision as set forth in claim 1, wherein: the main component of the non-Newtonian fluid (2) is polyacrylamide, a baffle is fixedly connected to the inside of the vehicle body (1), the non-Newtonian fluid (2) is arranged in a space formed between the left side of the baffle and the vehicle body (1), the volume of the non-Newtonian fluid (2) occupies three quarters of the volume of the space formed between the baffle and the vehicle body (1), the supporting spring (4) is movably connected to the inside of the non-Newtonian fluid (2), and the touch panel is fixedly connected to the inside of the vehicle body (1).
3. The apparatus for preventing a toy vehicle motor stall collision as set forth in claim 1, wherein: centre gripping subassembly (5) mainly are by the support frame, the cylinder, the catch bar, curved bar one, curved bar two, the connecting plate, the grip block is constituteed, support frame fixed connection is in the inside of automobile body (1), cylinder fixed connection is in the inboard of support frame, curved bar one, the equal swing joint of curved bar two is in the outside of support frame, catch bar swing joint is in the outside of cylinder, two fixed connection of curved bar are in the outside of catch bar, the outside of connecting rod swing joint support frame, curved bar one, the equal swing joint of curved bar two is in the outside of connecting rod, the grip block has two, two grip block difference fixed connection are in the outside of curved bar one and curved bar two.
4. The apparatus for preventing a toy vehicle motor stall collision as set forth in claim 1, wherein: the square groove has been seted up to the inside of pivot (7), the specification phase-match of the specification and the square casing (8) of square groove, square casing (8) fixed connection is in the inboard of square groove, the surface of box (10) is seted up porosely, the specification and the specification phase-match of kicking block (15) in hole, square casing (8), expanding spring (9), box (10), conductor (11), magnetic path (12) are constituteed and are a fixed subassembly, six are no less than to fixed subassembly's quantity, the even distribution in angle such as all fixed subassemblies is in the outside of pivot (7).
5. The apparatus for preventing a toy vehicle motor stall collision as set forth in claim 1, wherein: the novel electronic ballast is characterized in that an electrorheological body is arranged in the fixed shell (13), the volume of the electrorheological body occupies three quarters of the internal volume of the fixed shell (13), the main materials of the electrorheological body are gypsum, lime, carbon powder and olive oil, the electrorheological body is solid in an electrified state with a specified current amount and liquid in a non-electrified state, a conductive column is arranged in the electrorheological body, two short springs (14) are fixedly connected to the inside of the fixed shell (13), the two short springs (14) are fixedly connected to the outside of the top block (15), the two short springs (14) are movably connected to the inside of the electrorheological body, the fixed shell (13), the two short springs (14) and the top block (15) form a connecting assembly, the connecting assembly is not less than four in the outside of each box body (10), and the four connecting assemblies are symmetrically distributed on the outside of the.
6. The apparatus for preventing a toy vehicle motor stall collision as set forth in claim 1, wherein: the inside of connecting shell (19) is seted up with kicking block (15) specification assorted hole, the inside fixedly connected with contact in every hole, and the quantity of connecting shell (19), electro-magnet (20) is all not less than six, and all connect the even distribution in the outside of plectane (18) of angle such as shell (19), and box (10) are corresponding with the specification phase-match and the position of connecting shell (19).
7. The apparatus for preventing a toy vehicle motor stall collision as set forth in claim 1, wherein: the coil (17), the electromagnet (20), the conductive column and the cylinder are all electrically connected with the storage battery, the rotating shaft (7) is electrically connected with the driving power supply, and the storage battery, the driving power supply, the contact and the touch panel are all electrically connected with the control center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011413916.1A CN112657209A (en) | 2020-12-03 | 2020-12-03 | Device for preventing motor stall collision of toy car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011413916.1A CN112657209A (en) | 2020-12-03 | 2020-12-03 | Device for preventing motor stall collision of toy car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112657209A true CN112657209A (en) | 2021-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011413916.1A Withdrawn CN112657209A (en) | 2020-12-03 | 2020-12-03 | Device for preventing motor stall collision of toy car |
Country Status (1)
| Country | Link |
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| CN (1) | CN112657209A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544343A (en) * | 2022-02-18 | 2022-05-27 | 湖南汽车工程职业学院 | New energy automobile battery performance detection device |
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| CN109045722A (en) * | 2018-09-20 | 2018-12-21 | 安阳工学院 | A kind of carbon-free trolley of the intelligent avoidance based on ultrasonic listening |
| CN111483537A (en) * | 2020-04-09 | 2020-08-04 | 杭州宣阳科技有限公司 | Electric motor car buffering tilting prevention device based on non-Newtonian fluid |
| CN212197843U (en) * | 2020-03-06 | 2020-12-22 | 云和县双尖玩具配件有限公司 | Manual pay-off is used in construction |
| CN112145955A (en) * | 2020-09-28 | 2020-12-29 | 李若舒 | Transportation anti-collision device for liquefied gas tank |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060070A (en) * | 1990-09-27 | 1992-04-08 | 黄耀华 | Wheel braking device |
| DE19926806C1 (en) * | 1999-06-13 | 2001-02-01 | Willi Foldenauer | Safety steering device for children's play and driving devices and method for controlled compliance with the correct side of the road |
| CN103419015A (en) * | 2012-05-24 | 2013-12-04 | 南车青岛四方机车车辆股份有限公司 | Screwing device for nuts at shaft ends of wheel pairs of motor train unit |
| JP3198956U (en) * | 2015-05-19 | 2015-07-30 | 株式会社パートナーズ | Vehicle toy |
| CN206152337U (en) * | 2016-10-11 | 2017-05-10 | 郑金灵 | Brake equipment of children's car |
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| CN108861942A (en) * | 2018-08-17 | 2018-11-23 | 中际联合（北京）科技股份有限公司 | Speed limit component, stall brake apparatus and lifting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114544343A (en) * | 2022-02-18 | 2022-05-27 | 湖南汽车工程职业学院 | New energy automobile battery performance detection device |
| CN114544343B (en) * | 2022-02-18 | 2023-03-07 | 湖南汽车工程职业学院 | New energy automobile battery performance detection device |
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Application publication date: 20210416 |
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| WW01 | Invention patent application withdrawn after publication |