CN103786562A - Locking system of battery box of electric passenger vehicle - Google Patents
Locking system of battery box of electric passenger vehicle Download PDFInfo
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- CN103786562A CN103786562A CN201210423097.8A CN201210423097A CN103786562A CN 103786562 A CN103786562 A CN 103786562A CN 201210423097 A CN201210423097 A CN 201210423097A CN 103786562 A CN103786562 A CN 103786562A
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Abstract
The invention relates to a locking system of a rapid replacement battery box. The locking system comprises a box body main locking system 100 and a box body clamping and locking mechanism 200; the box body main locking system comprises an execution cylinder 101, a connecting truss 102, a horizontal linear bearing 103, a horizontal linear guide rail 104, a bearing support 105, a connecting rod 106, a vertical linear bearing 107, a vertical linear guide rail 108 and a wedge-shaped locking block 109; the clamping and locking mechanism comprises a locking seat 201 which is fixed on an outer box of the battery box and a sliding bolt 202 which is fixed on an inner box of the battery box. According to the locking system of the battery box of a rapid replacement type electric passenger vehicle, the effective locking of a battery box body system is achieved, the problems that the deformation of a box body is caused by bumping of the vehicle box body and accordingly the replacement is reduced, a positioning pin hole cannot be aligned to, and the bolt cannot be accurately locked are solved, the large locking force is achieved due to a pneumatic system, and the locking of the inner box and the outer box of a battery can be safe and reliable due to the fact that a main lock and an auxiliary lock are matched with each other in a locking mode.
Description
Technical field
The invention belongs to and change electric battery box system of electric bus technical field, be specifically related to the fastening system of battery box.
Background technology
Encourage in countries in the world under the trend of new-energy automobile industry development, China is using electrobus and small-sized electric car as first developing object.Along with the expansion of national pilot work, change the passenger vehicle of electric scheme for employing, each enterprise has all proposed corresponding design plan, and small lot is delivered for use.At present, batteries of electric automobile changes one of difficult point that power technology will solve is how automatically the battery box being contained on vehicle to be carried out to safe and reliable locking and release.Mostly existing locking and release scheme are to adopt the locking mode of bolt-type, exist battery box to cross location, and battery box produces to be out of shape and makes the lock pin cannot be to the problem such as entering in vehicle jolts process.For example, publication number is the quick-replaceable electric motor vehicle cell box of the disclosed one of the Chinese patent of CN101289056, its locking and release mechanism adopt the battery box left and right sides that dead bolt latch is installed and realize locking, at box deformation or exchange battery box dimensional uniformity not good in the situation that, lock pin cannot insert like this.And bear the various impacts in vehicle operating by rigidity dead bolt, because battery box weight is larger, lockable mechanism very easily produces distortion and even ruptures, and reliability is lower.During Shanghai World's Fair in 2010, identical with above of the mentality of designing that electrobus quick change battery box adopts, result of trial operation shows, the interchangeability of battery box is bad, often occurs that dead bolt cannot aim at the phenomenon that lockhole latches, although dead bolt all adopts approximate conical surface design, have certain error centering ability, but because catch gear propulsive effort mostly is spring device, the elastic force that spring produces is much smaller than the deadweight of battery box, cannot actv. regulating cell case positional error, design plan needs to improve.
Summary of the invention
The object of the invention is to solve the deficiencies in the prior art, providing a kind of can carry out the effectively system of locking to Battery case.
Object of the present invention is achieved through the following technical solutions.
A kind of battery box for electric passenger car fastening system, comprises the master lock of coupling mechanism force clamping system is provided in vehicle operating process, and the secondary lock mechanism of pre-locking and insurance function is provided.Described master lock clamping system is installed on casing top, comprise the system drive cylinder that is installed on casing upper beam, be installed on the two parallel line slideways along casing turnover direction of the left and right sides, casing top, be installed on four linear bearings at the both ends on line slideway, connect the front truss of cylinder rod and linear bearing, rear truss, be installed on the bearing support on linear bearing, the linear bearing being installed between parallel lines bearing supports, be installed on the ear dish framing member at linear bearing rear portion, be installed on the vertical line guide rail of casing both sides and be arranged on the vertical line bearing on this line slideway, connect the connecting rod of horizontal bearing and vertical bearing, connecting rod is installed between ear dish framing member and vertical line bearing support, wedge shape lock dog is installed on vertical line bearing.
Described secondary lock device comprises the lock that is installed on battery outer container, comprise lock housing, being installed on can be by the spring handle of capable of being unlocked by pressing on lock housing, be installed on the pull back spring that lock housing makes spring handle self-return, be installed on the lock main body that lock housing coordinates with dead bolt, in lock main body, be provided with lock sliding pin and lock slide block, lock sliding pin is connected with lock slide block by the pin being fixed on lock slide block, pin is arranged in the skewed slot on lock sliding pin, lock sliding pin is connected with spring handle, its up-and-down movement can be converted to the horizontal motion that promotes lock slide block by lock sliding pin self inclined-plane, be installed on the pull back spring between lock slide block and lock main body.Described spring bolt mechanism is installed on battery Inner case; comprise the dead bolt protecgulum that connects battery Inner case and spring bolt mechanism; the dead bolt being installed in dead bolt protecgulum supports; support dead bolt litter; be installed on the dead bolt of dead bolt litter; dead bolt under the effect of spring, can be after locking self-return, the dead bolt bonnet of protection inner structure.
When system locking, connecting rod 106 promotes vertical line bearing and moves downwards, and connecting rod is rocked to position shown in Fig. 3, the now antagonistic force of wedge shape lock dog 109 to Inner case coupling mechanism force, to promote linear bearing 103 to the motion of locking direction, in dead center position, system can reliably be locked.
The present invention adopts on casing top uniform four wedge shape lock dogs, can apply coupling mechanism force symmetrically to casing.In casing open mode, wedge shape lock dog is taken in battery outer container completely, and pushing of battery Inner case do not produced to any interference with taking out.In the time that casing is locked, cylinder promotes linear bearing by truss and moves to casing pull-out direction, the motion of linear bearing drivening rod, connecting rod promotes vertical line bearing and moves downwards, wedge shape lock dog enters the draw-in groove of case in battery, and the antagonistic force of draw-in groove to Inner case coupling mechanism force will promote linear bearing to the motion of locking direction, be that the suffered antagonistic force of lock dog component in the horizontal direction makes the linear bearing of horizontal motion in dead center position, system can reliably be locked.Wedge shape lock dog applies respectively the application force of three directions to battery Inner case by three plane of action, battery Inner case is effectively locked.
The present invention adopts line slideway and the linear bearing with larger weight capacity, the parallel battery outer container top cross beam that is installed on of line slideway.
The present invention connects the position of cylinder rod and opens U-shaped groove on truss, eliminates the parallelism error of line slideway and cylinder-bore axis.The position that connects linear bearing on truss adopts circular hole round pin to connect, and eliminates the parallelism error that two line slideways are shown in.
Linear bearing of the present invention supports and adopts arcwall face design, increases load-carrying capacity, reduces the inclination of linear bearing, and described linear bearing supports the steel bar that adopts time processing moulding.
The present invention arranges secondary catch gear in the left and right sides of casing, and secondary catch gear can be opened by robot arm or manually.
In the present invention, dead bolt adopts the design of half moon cambered surface, and upper and lower surface is inclined-plane.Corresponding lock main body adopts the cambered surface of the corresponding dead bolt in inclined-plane, push-on process, and lock ramp effect, in dead bolt cambered surface, pushes dead bolt housing by dead bolt, and dead bolt is aimed at after lock main body lockhole, and under action of the spring, dead bolt is pushed into lockhole, completes locking action.
In the present invention, two parallel slide shafts are set in spring bolt mechanism, slide shaft is fixed on the front and back of lock bolt structure inside and supports.Dead bolt is installed on slide shaft, is made the dead bolt can be along slide shaft axial motion.Slide shaft supports between slide shaft elastic rubber fitting is set, and alleviates impact, protection spring bolt mechanism.
In the present invention, in the outside of spring bolt mechanism, install and open handle.Open handle and be directly fastened on dead bolt by bolt, pull and open handle, can make dead bolt seesaw on slide shaft, dead bolt can be under the effect of slide shaft upper spring self-return.
In the present invention, lock slide block is set, for when the opening operation, dead bolt is released from lock main body lockhole, battery box is freely ejected.Lock slide block is arranged on four slide shafts of lock inside, slide block under the effect of spring, can self-return to retracted mode, guarantee that dead bolt can normally snap in.
In the present invention, after changing electric battery box and pushing, secondary lock mechanism clamping, and bear the ejection power of battery outer container to Inner case.After master lock clamping system falls, act on battery Inner case by wedge shape lock dog by plane of action, bear the ejection power of battery outer container to Inner case.Now, secondary lock mechanism does not stress.
The present invention adopts air cylinder driven, tighter than motor driven latch, manual locking or the locking that certainly latches have larger coupling mechanism force, directly drive linear bearing by framing member, do not adopt gear or turbine and worm transmission, avoid jolting of Mismachining tolerance or vehicle to impact reduction system quality of fit, more simple and reliable.
The present invention has abandoned locking and the unlocking manner of bolt-type, has simplified mechanical transmission structure simultaneously as far as possible, selects cylinder as catch gear propulsion source, obtains larger coupling mechanism force.
Adopt the quick change battery box system of locking scheme of the present invention, efficiently solve conformability and integrity problem in battery box quick-release and fast-assembling, solved the orientation problem of crossing of the prior art simultaneously, make battery Inner case and outer container reliable connection, effectively prevent the jolt relative motion of middle Inner case and outer container of vehicle operating, and then reduce the impact that casing and subsidiary thereof are subject to, improve service life, reduce the distortion of power line plug, arcing, welding phenomena, improved reliability.The present invention has carried out brand-new design to fastening system, simple and compact for structure, has effectively guaranteed that electrobus changes the normal operation of electric system.
Accompanying drawing explanation
Fig. 1 is the box lock clamping system structural representation of battery box for electric passenger car fastening system of the present invention.
Fig. 2 is the structural representation of two bar double-acting cylinders of battery box for electric passenger car fastening system of the present invention.
Fig. 3 is the schematic diagram of the fastening system driver train of battery box for electric passenger car fastening system of the present invention.
Fig. 4 is the schematic diagram of the wedge-lock block mechanism of battery box for electric passenger car fastening system of the present invention.
Fig. 4 a is the wedge shape block structured schematic diagram of battery box for electric passenger car fastening system of the present invention.
Fig. 4 b is the schematic diagram of the battery Inner case wedge locked groove of battery box for electric passenger car fastening system of the present invention.
Fig. 5 is the secondary lock lock structural scheme of mechanism of battery box for electric passenger car fastening system of the present invention.
Fig. 5 a is the secondary lock lock opening schematic diagram of battery box for electric passenger car fastening system of the present invention.
Fig. 6 is the spring bolt mechanism schematic diagram of battery box for electric passenger car fastening system of the present invention.
Fig. 6 a is that the spring bolt mechanism of battery box for electric passenger car fastening system of the present invention is opened handle schematic diagram.
Fig. 7 is the lock sliding pin structural representation of battery box for electric passenger car fastening system of the present invention.
The specific embodiment
Be described further for specific embodiments of the invention below in conjunction with accompanying drawing.
As Fig. 1, Fig. 5, a kind of battery box for electric passenger car fastening system shown in Fig. 6.Comprise the master lock clamping system 100 that is positioned at casing top, be positioned at the secondary lock mechanism 200 of casing front side as auxiliary locking.Described master lock clamping system 100 comprises two bar double-acting cylinders 101, connect the truss 102 of cylinder 101 and linear bearing 103, along two parallel line slideways 104 that are fixed on battery box outer container of casing turnover direction, 4 linear bearings 103 are installed on it, under air cylinder driven, truss 102 supports linear bearing 103 and is synchronized with the movement.Linear bearing 103 is connected and is promoted connecting rod 106 by bearing support 105, the other end that promotes connecting rod 106 connects vertical line bearing 107, vertical line bearing 107 is along upper and lower the moving of vertical line guide rail 108 of being fixed on battery outer container, and the inner side of vertical line bearing 107 is provided with the wedge shape lock dog 109 that snaps in battery box Inner case draw-in groove.Lock the draw-in groove of battery box Inner case, realize three axle location of the X.Y.Z axle to case in battery box.
The secondary lock mechanism 200 of described auxiliary locking, comprises the lock 201 that is installed on battery box outer container both sides, corresponding and be installed on the slip spring bolt mechanism 202 of Inner case.
Described cylinder is two bar double-acting cylinders 101, is fixed on battery box outer container girder steel by angle seat 1011, and described cylinder 101 is with end cushion rubber 1012.
Connect the truss 102 of described connection cylinder 101 and linear bearing 103 by front truss 1021, rear truss 1022 and linear bearing support 1023 compositions.Front and back truss is used for the linear bearing that is rigidly connected, and guarantees that it is synchronized with the movement.Linear bearing is supported for the steel bar with certain radian, and an excision forming, is used for improving fastening system rigidity, under locking state, reduces the inclination of linear bearing.
Described line slideway 104 is fixed on battery box outer container girder steel by the screw counter bore 1024 on guide rail, the described linear bearing 103 load bearing of attaching most importance to.
The base of described bearing support 105 is fastened on linear bearing 103, and linear bearing supports 1023 and is fastened on the reinforced rib 1052 of connecting rod ear dish 1051 of bearing support 105 by tapped bore.When system locking, connecting rod 106 promotes vertical line bearing and moves downwards, and connecting rod swings position as shown in Figure 3, the now antagonistic force of wedge shape lock dog 109 to Inner case coupling mechanism force, to promote linear bearing 103 to the motion of locking direction, in dead center position, system can reliably be locked.
Described wedge shape lock dog 109 has three driving surfaces corresponding with the wedge shape locked groove of case in battery.Plane of action 1091 and 1092 is applied to the effect of power, can realize casing effective location planar, and can realize the plane of action 1093 of effective location in vertical direction.4 wedge shape lock dogs coordinate, and effectively lock battery Inner case.
Described battery box outer container lock 201 comprises spring handle 2011, lock housing 2012, lock main body 2013, lock slide block 2014, slide shaft 2015 and lock sliding pin 2016.
Described lock sliding pin 2016 has skewed slot 2017 above, the pin 2018 that is fixedly installed in lock slide block 2014 is arranged in described skewed slot 2017, after described spring handle 2011 is depressed, promoting sliding pin 2016 moves downward, skewed slot 2017 on sliding pin promotes to be fixed on the pin 2018 on slide block 2014, slide block is pushed out to position as shown in Figure 5 a, opens secondary lock.Trip spring handle, under the effect of spring force, each mechanism is reset to initial condition.
The described spring bolt mechanism 202 that is installed on battery Inner case, comprises dead bolt 2021, dead bolt litter 2022, and dead bolt supports 2023, dead bolt protecgulum 2024, dead bolt bonnet 2025 and manually opened handle 2026.Spring bolt mechanism pushes outer container with battery Inner case, the ramp effect of dead bolt and lock main body 2013, and dead bolt falls into lock main body lockhole after being pushed into spring bolt mechanism.While changing electricity operation, the spring handle 2011 that robot is pressed on lock is released dead bolt.While manually changing electricity, pull the unlatching handle 2026 of spring bolt mechanism, dead bolt can be exited, pull-out battery Inner case.After changing electric battery box and pushing, secondary lock mechanism 200 clamps, and bears the ejection power of battery outer container to Inner case.After master lock clamping system 100 falls, act on battery Inner case by wedge shape lock dog 109 by plane of action 1093, bear the ejection of battery outer container to Inner case.Now, secondary lock mechanism does not stress.
The present invention is in the time selecting implementation method, and emphasis is considered the impact feature in passenger vehicle operational process, and vertical direction maximum has the impact of 3 ~ 4G, and the impact of the maximum 1G of horizontal direction left and right, so fastening system needs emphasis to overcome the impact of vertical direction.Then adopt press-down type wedge shape lock dog to lock casing.
When the present invention is applied to battery box, as shown in Figure 1, battery outer container, master lock clamping system, secondary lock lock, as one, is installed on interior of body, and according to master layout demand to vehicle body air-channel system stringing, Circuits System is connected up.While as Redundancy Design, is improved system reliability at battery box arranged alongside hand change over valve.
While adopting electrobus of the present invention to change electricity operation, under the operation of chaufeur, electromagnetic switch valve events, cylinder promotes linear bearing by truss, move to casing rear through locking dead center position, bearing support pulls vertical line bearing to lift, and wedge shape lock dog is separated from from the locked groove of battery Inner case, and takes in battery outer container completely.Now, robot starts to change electricity operation.Robot arm is pressed secondary lock lock spring handle 2011, and lock sliding pin 2016 promotes lock slide block 2014, and dead bolt is released to lock main body 2013, secondary lock mechanism opening, and robot pulls the handle on battery Inner case, and battery is pulled out.Afterwards, robot will be expired battery and be changed to identical station, and battery is pushed to battery outer container, at battery box end of travel, dead bolt cambered surface acts on lock main body inclined-plane, continues to push after being pressed into spring bolt mechanism, aim at after main body lockhole, under action of the spring, secondary lock latches automatically.Robot completes all casings and changes after electricity operation, and chaufeur carries out solenoid directional control valve control switch operation, cylinder action, linear bearing travels forward, and promotes wedge shape lock dog and inserts battery Inner case locked groove, by connecting rod under three effects of lock dog, battery is locked, and completes and changes electricity operation.
Claims (10)
1. a battery box for electric passenger car fastening system, comprises the master lock clamping system (100) that is positioned at casing top, is positioned at the secondary lock mechanism (200) of casing front side as auxiliary locking, it is characterized in that:
Described master lock clamping system (100) comprises cylinder (101), connect the truss (102) of cylinder (101) and linear bearing (103), be fixed on two line slideways (104) of battery box outer container along casing turnover direction, described linear bearing (103) is fixed on line slideway (104), linear bearing (103) connects promotion connecting rod (106), the other end that promotes connecting rod (106) connects vertical line bearing (107), vertical line bearing (107) is fixed on the vertical line guide rail (108) of battery outer container, the inner side of vertical line bearing (107) is provided with the wedge shape lock dog (109) that snaps in battery box Inner case draw-in groove.
2. described in, the secondary lock mechanism (200) of auxiliary locking comprises the lock (201) that is installed on battery box outer container both sides, and is installed on the slip spring bolt mechanism (202) of Inner case.
3. a kind of battery box for electric passenger car fastening system according to claim 1, it is characterized in that, described cylinder is two bar double-acting cylinders (101), is fixed on battery box outer container girder steel by angle seat (1011), and described cylinder (101) is with end cushion rubber (1012).
4. a kind of battery box for electric passenger car fastening system according to claim 1, it is characterized in that, described connection cylinder (101) is with the truss (102) of linear bearing (103) by front truss (1021), and rear truss (1022) and linear bearing support (1023) composition.
5. a kind of battery box for electric passenger car fastening system according to claim 3, is characterized in that, it is the steel bar with certain radian of an excision forming that described linear bearing supports (1023).
6. a kind of battery box for electric passenger car fastening system according to claim 1, it is characterized in that, described line slideway (104) is fixed on battery box outer container girder steel by the screw counter bore on guide rail (1024), described linear bearing (103) the load bearing of attaching most importance to.
7. a kind of battery box for electric passenger car fastening system according to claim 1, it is characterized in that, it is upper that the base of described bearing support (105) is fastened on linear bearing (103), and linear bearing supports (1023) and is fastened on the reinforced rib (1052) of bearing support (105) connecting rod ear dish (1051) by tapped bore.
8. a kind of battery box for electric passenger car fastening system according to claim 1, it is characterized in that, described wedge shape lock dog (109) has three driving surfaces corresponding with the wedge shape locked groove of case in battery, comprises the plane of action (1091) of realizing casing effective location planar and (1092) and can realize the plane of action (1093) of effective location in vertical direction
A kind of battery box for electric passenger car fastening system according to claim 1, it is characterized in that, described battery box outer container lock (201) comprises spring handle (2011), lock housing (2012), lock main body (2013), lock slide block (2014), slide shaft (2015) and lock sliding pin (2016).
9. a kind of battery box for electric passenger car fastening system according to claim 8, it is characterized in that, described lock sliding pin (2016) has skewed slot (2017) above, and the pin (2018) that is fixedly installed in lock slide block (2014) is arranged in described skewed slot (2017).
10. a kind of battery box for electric passenger car fastening system according to claim 1, it is characterized in that, the described spring bolt mechanism (202) that is installed on battery Inner case, comprise dead bolt (2021), dead bolt litter (2022), dead bolt supports (2023), dead bolt protecgulum (2024), dead bolt bonnet (2025) and manually opened handle (2026).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210423097.8A CN103786562B (en) | 2012-10-30 | 2012-10-30 | Locking system of battery box of electric passenger vehicle |
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|---|---|---|---|
| CN201210423097.8A CN103786562B (en) | 2012-10-30 | 2012-10-30 | Locking system of battery box of electric passenger vehicle |
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| CN103786562A true CN103786562A (en) | 2014-05-14 |
| CN103786562B CN103786562B (en) | 2017-02-15 |
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| CN201210423097.8A Active CN103786562B (en) | 2012-10-30 | 2012-10-30 | Locking system of battery box of electric passenger vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104442336A (en) * | 2015-01-06 | 2015-03-25 | 山东鲁能智能技术有限公司 | Unlocking mechanism of battery box of electric vehicle |
| CN107499108A (en) * | 2017-09-26 | 2017-12-22 | 遵义西南机械设备有限责任公司 | A kind of two level anti-drop device for battery case |
| CN108425924A (en) * | 2018-05-21 | 2018-08-21 | 深圳市原速光电科技有限公司 | A kind of locking device and a kind of vacuum equipment |
| CN111203529A (en) * | 2020-01-14 | 2020-05-29 | 合肥工业大学 | Baking machine |
| CN111844136A (en) * | 2020-07-28 | 2020-10-30 | 广东博智林机器人有限公司 | Comprehensive test board |
| CN112706599A (en) * | 2019-10-24 | 2021-04-27 | 北京新能源汽车股份有限公司 | Mounting device for quick-change battery, battery changing system and vehicle |
| WO2021128826A1 (en) * | 2019-12-25 | 2021-07-01 | 上海玖行能源科技有限公司 | Battery-replaceable load-bearing motion apparatus |
| JP2022040114A (en) * | 2017-12-29 | 2022-03-10 | 上海電巴新能源科技有限公司 | Battery box unlocking device, battery box and battery box quick battery replacement system |
| CN114537122A (en) * | 2022-04-24 | 2022-05-27 | 中国重汽集团济南动力有限公司 | Battery locking device, lower battery replacement electric truck and battery replacement method |
| CN116810826A (en) * | 2023-08-31 | 2023-09-29 | 北京玖行智研交通科技有限公司 | New energy vehicle trades motor ware people |
| CN109177711B (en) * | 2018-09-27 | 2023-10-27 | 江西博能上饶客车有限公司 | Electric motor coach battery fixed knot constructs |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104442336A (en) * | 2015-01-06 | 2015-03-25 | 山东鲁能智能技术有限公司 | Unlocking mechanism of battery box of electric vehicle |
| CN107499108A (en) * | 2017-09-26 | 2017-12-22 | 遵义西南机械设备有限责任公司 | A kind of two level anti-drop device for battery case |
| JP7327886B2 (en) | 2017-12-29 | 2023-08-16 | 上海電巴新能源科技有限公司 | Battery box unlocking device, battery box and quick battery replacement system |
| US11837747B2 (en) | 2017-12-29 | 2023-12-05 | Shanghai Dianba New Energy Technology Co., Ltd. | Battery case unlocking apparatus, battery case, and quick battery case replacement system |
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| JP2022040114A (en) * | 2017-12-29 | 2022-03-10 | 上海電巴新能源科技有限公司 | Battery box unlocking device, battery box and battery box quick battery replacement system |
| CN108425924A (en) * | 2018-05-21 | 2018-08-21 | 深圳市原速光电科技有限公司 | A kind of locking device and a kind of vacuum equipment |
| CN109177711B (en) * | 2018-09-27 | 2023-10-27 | 江西博能上饶客车有限公司 | Electric motor coach battery fixed knot constructs |
| CN112706599B (en) * | 2019-10-24 | 2022-07-29 | 北京新能源汽车股份有限公司 | Mounting device for quick-change battery, battery changing system and vehicle |
| CN112706599A (en) * | 2019-10-24 | 2021-04-27 | 北京新能源汽车股份有限公司 | Mounting device for quick-change battery, battery changing system and vehicle |
| WO2021128826A1 (en) * | 2019-12-25 | 2021-07-01 | 上海玖行能源科技有限公司 | Battery-replaceable load-bearing motion apparatus |
| CN111203529A (en) * | 2020-01-14 | 2020-05-29 | 合肥工业大学 | Baking machine |
| CN111844136B (en) * | 2020-07-28 | 2021-11-02 | 广东博智林机器人有限公司 | Comprehensive test board |
| CN111844136A (en) * | 2020-07-28 | 2020-10-30 | 广东博智林机器人有限公司 | Comprehensive test board |
| CN114537122B (en) * | 2022-04-24 | 2022-06-28 | 中国重汽集团济南动力有限公司 | Battery locking device, lower battery replacement electric truck and battery replacement method |
| CN114537122A (en) * | 2022-04-24 | 2022-05-27 | 中国重汽集团济南动力有限公司 | Battery locking device, lower battery replacement electric truck and battery replacement method |
| CN116810826A (en) * | 2023-08-31 | 2023-09-29 | 北京玖行智研交通科技有限公司 | New energy vehicle trades motor ware people |
| CN116810826B (en) * | 2023-08-31 | 2023-11-14 | 北京玖行智研交通科技有限公司 | New energy vehicle trades motor ware people |
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