CN119636384A - Locking device with emergency unlocking function and electric vehicle - Google Patents
Locking device with emergency unlocking function and electric vehicle Download PDFInfo
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- CN119636384A CN119636384A CN202510120229.7A CN202510120229A CN119636384A CN 119636384 A CN119636384 A CN 119636384A CN 202510120229 A CN202510120229 A CN 202510120229A CN 119636384 A CN119636384 A CN 119636384A
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- driving part
- emergency unlocking
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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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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Abstract
本发明涉及一种带紧急解锁功能的锁止装置及电动车辆，锁止装置包括设于电池包框架的包锁部、设于换电车身的车锁部和紧急解锁组件，包锁部包括电池包悬挂件，电池包悬挂件设有锁孔；车锁部包括驱动部、滑座和固定座，滑座上设有用于贯穿锁孔的锁舌，驱动部可拆卸地安装于固定座上，驱动部的输出端可拆卸地连接于滑座上，驱动部推动滑座相对于固定座滑动，带动锁舌插入或退出所述锁孔，完成锁止或解锁功能。本发明在驱动部故障或无电源输入的情况下，拆卸驱动部，将紧急解锁组件装在固定座和滑座上，代替驱动部人工驱使固定座和滑座实现相对位移，从而实现紧急解锁功能，完成电池包的应急更换。
The present invention relates to a locking device and an electric vehicle with an emergency unlocking function. The locking device includes a locking part arranged on a battery pack frame, a vehicle lock part arranged on a battery swap vehicle body, and an emergency unlocking assembly. The locking part includes a battery pack hanging part, and the battery pack hanging part is provided with a lock hole; the vehicle lock part includes a driving part, a sliding seat, and a fixed seat. The sliding seat is provided with a lock tongue for passing through the lock hole. The driving part is detachably mounted on the fixed seat, and the output end of the driving part is detachably connected to the sliding seat. The driving part pushes the sliding seat to slide relative to the fixed seat, driving the lock tongue to insert or withdraw from the lock hole, thereby completing the locking or unlocking function. In the present invention, when the driving part fails or there is no power input, the driving part is disassembled, and the emergency unlocking assembly is installed on the fixed seat and the sliding seat, replacing the driving part to manually drive the fixed seat and the sliding seat to achieve relative displacement, thereby realizing the emergency unlocking function and completing the emergency replacement of the battery pack.
Description
Technical Field
The invention relates to the technical field of vehicle battery replacement, in particular to a locking device with an emergency unlocking function and an electric vehicle.
Background
With the continuous development of the power conversion technology, the power conversion mode of the electric heavy truck is that a power conversion battery pack is placed behind a cab, the back power conversion from the upper side to the frame girder is gradually developed, the power conversion battery pack is arranged at the bottom of the frame girder, and the power conversion battery pack is installed at the bottom of the frame girder from the lower side of the frame. The bottom-mounted type power conversion has the advantages of low center of gravity of the whole vehicle, capability of configuring a battery pack with larger electric quantity and the like, and is gaining wide attention for vehicle enterprises.
At present, the bottom-mounted type power conversion of the electric heavy truck can be divided into two modes of station end unlocking and vehicle end unlocking according to the arrangement mode of the control device of the locking mechanism. Station end unblock will drive and control locking and the device that opens is installed on the power station, and the equipment of power station except need send the battery package to electronic heavily blocking mounted position, still need provide the unblock and the condensation of the locking device of drive arrangement drive battery package, and common have the rifle of screwing up, in order to satisfy locking drive arrangement's operating space demand, the power station often need dig the very deep trench and install locking drive arrangement, and this kind of mode power station equipment of changing is complicated, and power station construction cost is higher.
The vehicle end unlocking method and the vehicle end unlocking device have the advantages that although the defect of station end unlocking is overcome, when the vehicle end unlocking device is used for replacing a heavy truck with a bottom-mounted battery, the vehicle end unlocking device is used for solving the problems that the vehicle end unlocking locking mechanism possibly has faults in an electric heavy truck operation period due to the fact that the battery pack capacity of the heavy truck is large, the weight is heavy, the size is large and the road condition working condition is worse than that of a passenger car, the environment is bad or the use is improper, the locking device driving part blocks the fault tolerance when the truck is blocked, the battery pack installation position is deformed due to the severe use environment, the locking mechanism locking function is possibly invalid, and the problem that how to unlock the locking mechanism in an emergency mode is caused by the failure of an automatic control function (such as no power supply) of the locking mechanism is solved.
Disclosure of Invention
The invention aims to provide a locking device with an emergency unlocking function and an electric vehicle so as to solve the problems.
The invention adopts the following technical scheme:
The utility model provides a take locking device of urgent unblock function, includes the package locking portion that locates battery package frame, locates the car locking portion and the urgent unblock subassembly of trading the electric automobile body, package locking portion includes battery package suspension piece, and battery package suspension piece is equipped with the lockhole.
The bicycle lock portion includes drive portion, slide and fixing base, fixing base fixed mounting is on the trading car body, and the fixing base is including being used for battery package hanger to pass the car end external member and be used for with slide complex guide pulley seat, be equipped with on the slide be used for running through the spring bolt of lockhole, drive portion detachably installs on the fixing base, drive portion's output detachably connect in on the slide, drive portion promotes the slide for the fixing base slides, drives the spring bolt inserts or withdraws from the lockhole, accomplishes locking or unblock function.
The emergency locking assembly comprises a long screw rod piece, a screw hole installation piece and a through hole installation piece, wherein the screw hole installation piece is detachably installed on the fixed seat, the through hole installation piece is detachably installed on the sliding seat, the long screw rod piece penetrates through the through hole installation piece to be in threaded connection with the screw hole installation piece, the sliding seat is driven to slide relative to the fixed seat through rotating the long screw rod piece, and locking is driven to be inserted into or withdrawn from the locking hole, so that emergency unlocking or emergency locking is completed.
Further, the battery suspension piece is a flange structural piece, the bottom of the battery suspension piece is fixedly installed with the battery pack frame skeleton through bolts, the upper portion of the battery suspension piece is provided with the lock hole, the rolling shaft is installed in the lock hole and matched with the lock tongue, and when the lock tongue is inserted into the lock hole, the rolling shaft rolls along the movement of the lock tongue.
Further, the driving part comprises an electric push rod and a push rod connecting piece, the electric push rod is detachably mounted on the fixing seat, the push rod connecting piece is fixedly assembled on the sliding seat, and a telescopic rod of the electric push rod is detachably connected with the push rod connecting piece.
Further, the battery package hanger is two, the car end external member is two, is first car end external member and second car end external member respectively, the guide pulley seat is two, is first guide pulley seat and second guide pulley seat respectively, first car end external member and second car end external member are sleeve structure, telescopic one end be flange structure for with trade car body skeleton bolt lock and be connected, be equipped with first wear pad and second wear pad on first car end external member and the second car end external member respectively.
Preferably, the first guide wheel seat comprises a T-shaped structural member, two first guide wheels and a cover plate, wherein a first mounting hole is formed in one end of the T-shaped structural member, which is relatively close to a frame, along the vertical direction, and is used for being fixedly connected with a trolley body framework in a matched manner through bolts, second mounting holes are formed in two sides of the wider end of the T-shaped structural member along the horizontal direction, the two first guide wheels are mounted in the two second mounting holes through bolts, one narrower end of the T-shaped structural member is of a Y-shaped structure, a containing groove for assembling an electric push rod or a screw hole mounting piece is formed in one side of a Y-shaped structure, and the cover plate is covered on the containing groove and is locked through bolts.
Preferably, the second guide wheel seat comprises a U-shaped structural member and two second guide wheels, the U-shaped structural member is fixedly connected with the trolley body framework through bolts, and the two second guide wheels are assembled on two sides of the U-shaped structural member through bolts.
Preferably, the slide includes two push plates and two the spring bolt, the push plate is a strip type plate, be equipped with respectively on the push plate with first guide pulley seat and the long rectangular shape guide slot of second guide pulley complex of guide pulley, the spring bolt is T type structure, its wider one end passes through the fastener with the push plate to be connected, the other end of spring bolt is along the direction of height skew, its height and width with lockhole looks adaptation.
The safety control unit comprises a pressure sensor, a control circuit and an alarm, wherein the pressure sensor is arranged on the fixed seat and corresponds to the lock tongue, the control circuit is electrically connected with the pressure sensor, the alarm and the driving part, when the driving part drives the sliding seat to shift to be in a normal stroke, the pressure sensor is not contacted with the lock tongue, the control circuit connected with the pressure sensor is in an open circuit state, when the driving part is abnormal and is not stopped at a set position, the control circuit drives the lock tongue to continuously move and bear force by contacting with the pressure-sensitive unit of the pressure sensor, a conductive loop is formed, the control circuit is communicated with the alarm to start alarm, and meanwhile, the circuit for controlling the driving part is cut off, and the driving part drives the lock tongue to continuously shift.
An emergency unlocking method of a locking device with an emergency unlocking function comprises the locking device, under the condition that the driving part of the locking device fails or no power is input, the emergency unlocking function is realized through the following steps:
step one, disassembling a fixing bolt of a cover plate of the first guide wheel seat, and taking down the cover plate.
And step two, disassembling the installation bolts of the telescopic rod of the electric push rod and the push rod connecting piece, and taking down the electric push rod.
And thirdly, embedding and installing the screw hole installation piece on one side, far away from the electric push rod, of the accommodating groove of the first guide wheel seat, covering the accommodating groove with the cover plate, and locking the cover plate into the fixing bolt.
And step four, embedding and installing the through hole installation piece on one side, far away from the electric push rod, of the push rod connection piece.
And fifthly, enabling one threaded end of the long screw rod piece to sequentially pass through the threaded holes of the through hole mounting piece and the threaded hole mounting piece.
And step six, rotating the long screw rod, moving the relative positions of the screw hole installation piece and the through hole installation piece through the cooperation of the long screw rod and the screw hole installation piece, and driving the relative positions of the movable sliding seat and the fixed seat to realize emergency unlocking.
The electric vehicle comprises a battery replacing vehicle body and a battery pack, and further comprises the locking device, wherein the battery pack or a frame for installing the battery pack is detachably installed on the battery replacing vehicle body of the electric vehicle through the locking device.
As can be seen from the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:
1. The driving part of the locking device is detachably connected, and the driving part can be detached through the emergency unlocking component under the condition that the driving part fails or no power is input, the emergency unlocking component is arranged on the fixing seat and the sliding seat, the driving part is replaced to manually drive the fixing seat and the sliding seat to realize relative displacement, so that the emergency unlocking function is realized, and the emergency replacement of the battery pack is completed.
2. When the battery pack of the electric vehicle is replaced, after the battery pack is transported to the replacement position corresponding to the vehicle body, the battery pack can reach the target position for locking or unlocking the vehicle body only by moving the battery pack along the vertical direction, and the locking or unlocking action is driven by the driving device arranged on the vehicle body of the electric vehicle, so that the problem of complex power driving device and transmission device caused by station end driving and power replacement is avoided, and the construction and commercialization difficulty of a power station site is reduced.
3. The invention is provided with the safety control unit to realize the limit control and the locked rotor control function, wherein the limit control is that when the driving part has abnormal conditions and the displacement exceeds the set length, the audible and visual alarm can be triggered to remind an operator to treat faults, and meanwhile, the circuit of the driving part is cut off, the driving part is stopped to continue working, and the thrust is prevented from damaging the locking device.
4. The spring bolt of the invention is provided with a plurality of spare parts with different thicknesses, and the height of the spring bolt can be changed according to actual conditions, so that the problem that the locking equipment is stressed unevenly due to deformation of a power change frame possibly occurring under long-time severe working conditions of an electric power change heavy truck is solved, and the spring bolt and a battery pack hanging piece are always in a contact stress state.
Drawings
FIG. 1 is a schematic view of the assembly of the locking device of the present invention.
Fig. 2 is a schematic view of a locking state of the locking device of the present invention.
FIG. 3 is a schematic diagram of a slide structure according to the present invention.
Fig. 4 is a schematic structural view of the tongue and the push plate of the present invention.
FIG. 5 shows the present invention the structure of the fixing seat is schematically shown.
Fig. 6 is a schematic structural diagram of a first end sleeve, a second end sleeve, a first wear pad and a second wear pad according to the present invention.
Fig. 7 is a schematic structural diagram of a first guide wheel seat and a second guide wheel seat according to the present invention.
Fig. 8 is a schematic view of the structure of the electric putter of the present invention.
Fig. 9 is a schematic view of the emergency unlocking assembly of the present invention when assembled for use.
Fig. 10 is a schematic structural view of an emergency unlocking component according to the present invention.
The reference numerals in the drawings include a locking portion 100, a locking portion 200, an emergency unlocking module 300, a battery pack suspension 110, a roller 120, a driving portion 210, a sliding seat 220, a fixing seat 230, a long screw member 310, a screw hole mounting member 320, a through hole mounting member 330, a locking hole 111, an electric push rod 211, a push rod connecting member 212, a locking tongue 221, a push plate 222, a first vehicle end sleeve 231, a second vehicle end sleeve 232, a first guide wheel seat 233, a second guide wheel seat 234, a first wear plate 235, a second wear plate 236, a pressure sensor 241, an electric push rod body 2111, an electric push rod fixing rod body 2112, an electric push rod telescopic rod body 2113, a first elongated guide groove 2221, a second elongated guide groove 2222, a first screw mounting hole 2311, a second screw mounting hole 2312, a T-shaped structural member 2331, a first guide wheel 2332, a cover plate 2333, a U-shaped structural member 2341, a second guide wheel 2342, a vehicle body skeleton 400, and a battery pack frame 500.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear are referred to in the embodiments of the present invention), the directional indications are merely used to explain the relative positional relationship, movement conditions, and the like between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In the description of the present application, unless explicitly stated and limited otherwise, the terms "disposed" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, directly connected, or indirectly connected via an intermediate medium. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 and 2, a locking device with an emergency unlocking function includes a pack lock part 100 provided to a battery pack frame 500, a vehicle lock part 200 provided to a battery exchange body, an emergency unlocking module 300, and a safety control unit.
Referring to fig. 2 and 3, the pack locking part 100 includes a battery pack hanger 110, the battery pack hanger 110 is provided with a lock hole 111, the lock part 200 includes a driving part 210, a sliding seat 220 and a fixing seat 230, the fixing seat 230 is fixedly mounted on a trolley body, the fixing seat 230 includes a trolley end sleeve for the battery pack hanger 110 to pass through and a guide wheel seat for being matched with the sliding seat 220, the sliding seat 220 is provided with a lock tongue 221 for penetrating through the lock hole 111, the driving part 210 is detachably mounted on the fixing seat 230, an output end of the driving part 210 is detachably connected to the sliding seat 220, the driving part 210 pushes the sliding seat 220 to slide relative to the fixing seat 230, and the lock tongue 221 is driven to insert or withdraw from the lock hole 111, so as to complete the locking or unlocking function.
Referring to fig. 9 and 10, the emergency locking assembly includes a long screw member 310, a screw hole installation member 320 and a through hole installation member 330, the screw hole installation member 320 is detachably installed on the fixing base 230, the through hole installation member 330 is detachably installed on the sliding base 220, the long screw member 310 penetrates through the through hole installation member 330 to be in threaded connection with the screw hole installation member 320, the sliding base 220 is driven to slide relative to the fixing base 230 by rotating the long screw member 310, and the locking is driven to be inserted into or withdrawn from the locking hole 111, so that emergency unlocking or emergency locking is completed.
Referring to fig. 2 to 4, in particular, in the present embodiment, one locking device corresponds to two battery suspension members 110, the battery suspension members 110 are square flange structural members, mounting holes are provided on square flanges at the bottoms of the battery suspension members 110, and the battery suspension members 110 and the battery pack frame 500 are mounted together by bolts. The upper part of the battery hanging frame is provided with a lock hole 111, a roller 120 is arranged in the lock hole 111, the roller 120 is matched with a lock tongue 221 on the sliding seat 220, and when the lock tongue 221 is inserted into the lock hole 111, the roller 120 rolls along the movement of the lock tongue 221. In addition, the battery hanger 110 is provided with a plurality of circular or long kidney-shaped through-holes, thereby reducing its own weight while satisfying the strength requirement.
Referring to fig. 2 and 8, in the present embodiment, the driving part 210 is preferably a high-thrust electric putter 211 and a putter connector 212. Electric putter 211 includes an electric putter body 2111, an electric putter 211 fixing rod, and a putter connection 212. Electric putter 211 is detachably mounted on fixing base 230 through an electric putter 211 dead lever, and putter connector 212 is fixedly mounted on slide 220, and telescopic rod 2113 of electric putter 211 is detachably connected with putter connector 212.
Referring to fig. 8, specifically, a mounting hole is provided on a coupling member of the electric putter 211, which is mounted on the slider 220 by a bolt, and one end of the coupling member of the electric putter 211, which is remote from the mounting hole, is provided with a square through hole, which is coupled with a telescopic rod 2113 of the electric putter 211 by a pin (or a fixing bolt), thereby coupling the electric putter 211 with the slider 220 such that the electric putter 211 can push the slider 220 to move.
Referring to fig. 3 and 4, in this embodiment, the slide 220 includes two push plates 222 and two locking bolts 221, where the push plates 222 are strip-shaped plates, and under the condition of meeting the strength of the slide, round holes can be formed in the strip-shaped plates to reduce the dead weight. In addition, the push plate 222 is provided with a first elongated guide groove 2221 and a second elongated guide groove 2222 that are engaged with the guide wheels of the first guide wheel seat 233 and the second guide wheel seat 234, respectively. The bolt 221 is of a T-shaped structure, one wider end of the bolt 221 is connected with the push plate 222 through a fastener, the other end of the bolt 221 is inclined along the height direction, and the height and the width of the bolt 221 are matched with those of the lock hole 111, so that the bolt can be inserted into the lock hole 111, and meanwhile the bolt is limited at the wider end of the bolt 221.
In the invention, the bolt 221 can be provided with a plurality of spare parts with different heights, and the original bolt 221 can be replaced. The bottom-mounted power conversion frame of the electric heavy truck is large in size and heavy in weight, and usually a plurality of locking devices are matched together to participate in bearing and locking. Under the severe use condition of a long time, the power conversion frame may deform relative to the original state, so that the contact states of the locking devices are different, and the stress of the locking devices is uneven. Considering the possibility of this situation, the bolt 221 can replace spare parts with different heights according to actual situations, so as to realize full contact of the locking device and improve the situation of uneven stress.
Referring to fig. 5 to 7, in the present embodiment, the fixing base 230 includes a first vehicle end fitting 231, a second vehicle end fitting 232, a first guide wheel seat 233, a second guide wheel seat 234, a first wear pad 235 and a second wear pad 236. The first car end sleeve 231 is of a square sleeve structure, one end of the sleeve is of a rectangular flange structure, a rectangular through hole is formed in the sleeve, the end far away from the flange structure is of an enlarged shape, and the first car end sleeve is matched with the battery pack hanging piece 110, so that the battery pack hanging piece 110 can penetrate through the rectangular through hole along the vertical direction. The flange structure is provided with a first screw mounting hole 2311 and a second screw mounting hole 2312. The flange structure is mounted with the replacement vehicle body frame 400 through the first screw mounting hole 2311. The first wear plate 235 is mounted to the flange structure through the second threaded mounting hole 2312. The second vehicle end fitting 232 is similar to the first vehicle end fitting 231, except that the flange structure of the second vehicle end fitting 232 is an asymmetric structure with the flange bead on one side being longer than the other side.
Referring to fig. 7, the first guide wheel seat 233 includes a T-shaped structural member 2331, two first guide wheels 2332, and a cover plate 2333. The wider end of the T-shaped structural member 2331 is provided with a first mounting hole in a vertical direction, and is mounted with the body frame 400 by bolts. The wider end of the T-shaped structural member 2331 is provided with a second mounting hole along the horizontal direction, and the first guide wheel 2332 is mounted on the second mounting hole of the T-shaped structural member 2331 through a bolt. The narrower one end of T type structure 2331 is Y type structure, and Y type structure one side of opening fork sets up electric putter body 2112 shape complex holding tank (the holding tank also can be used for assembling screw installation piece 320), and electric putter body 2112 is placed behind the holding tank, and apron 2333 lid is located the holding tank, and apron 2333 passes through the bolt fastening with T type structure 2331, installs electric putter 211 body on first guide pulley seat 233, and first guide pulley 2332 cooperates with the first rectangular type guide slot 2221 on the push pedal 222, and first guide pulley 2332 is spacing removal in the rectangular type guide slot 2222 of second.
Referring to fig. 7, the second guide wheel seat 234 includes a U-shaped structural member 2341 and two second guide wheels 2342, and the U-shaped structural member 2341 is provided with mounting holes and is mounted with the vehicle body frame 400 by bolts. The second guide wheels 2342 are installed on both sides of the U-shaped structural member 2341, and cooperate with the second elongated guide groove 2222 on the push plate 222, so as to limit movement in the second elongated guide groove 2222 by the second guide wheels 2342.
In this embodiment, the safety control unit includes a pressure sensor 241, a control circuit and an alarm, the pressure sensor 241 is mounted on the fixing seat 230, corresponding to the latch 221, and the control circuit is electrically connected to the pressure sensor 241, the alarm and the driving portion 210. When the driving part 210 is abnormal and is not stopped at a set position, the driving part 210 drives the bolt 221 to continuously move and contact with a pressure sensitive unit of the pressure sensor 241 to be stressed, a conductive loop is formed, the control circuit is communicated with an alarm to start an alarm, and meanwhile, a circuit for controlling the driving part 210 is cut off, and the driving part 210 is stopped to drive the bolt 221 to continuously move.
The safety control unit also has a locked-rotor control function, wherein the locked-rotor control is that the driving part 210 outputs a torque signal to the control circuit in real time, the control circuit monitors the torque signal, when the driving part 210 is locked-rotor, an abnormal peak value occurs in the torque signal, the audible and visual alarm is started to give an alarm, and meanwhile, the power supply of the driving part 210 is cut off.
Referring to fig. 7, in some embodiments, the pressure sensor 241 is a resistive touch sensor mounted on the U-shaped inner wall of the U-shaped structure 2341 opposite the tongue 221.
Referring to fig. 9 and 10, in the present embodiment, in particular, the emergency unlocking module 300 has an external thread at one end of the long screw member 310, which is not smaller than the telescopic length of the telescopic rod 2113 of the electric push rod 211, and has a nut structure at the other end. The screw hole installing piece 320 is of a convex structure, the small end of the convex structure can be embedded in the accommodating groove of the T-shaped structural piece 2331 of the first guide wheel seat 233 in a matched mode, and the convex structure is provided with an internal threaded hole matched with the external thread of the long threaded rod. The through hole mounting member 330 has a convex structure, and can be embedded in a square through hole of the electric push rod 211 connector in a matching manner, and a through hole with a long threaded rod in clearance fit is arranged in the middle of the convex structure.
Referring to fig. 2, 9 and 10, the emergency unlocking method of the locking device with the emergency unlocking function according to the present invention realizes the emergency unlocking function by the following steps in case that the locking device driving part 210 fails or no power is inputted:
step one, the fixing bolts of the cover plate 2333 of the first guide wheel seat 233 are detached, and the cover plate 2333 is removed.
Step two, the mounting bolts of the push rod connector 212 and the telescopic rod 2113 of the electric push rod 211 are removed, and the electric push rod 211 is removed.
Step three, the screw hole mounting piece 320 is embedded and mounted on one side, far away from the electric push rod 211, of the accommodating groove of the first guide wheel seat 233, and the cover plate 2333 is covered on the accommodating groove and locked into the fixing bolt.
Fourth, through hole mount 330 is insert-mounted on the side of push rod connector 212 remote from electric push rod 211.
And fifthly, one threaded end of the long screw rod member 310 sequentially passes through the threaded holes of the through hole mounting member 330 and the threaded hole mounting member 320.
Step six, the end of the long screw rod 310 with the nut is screwed by a tool, and the relative positions of the screw hole installation piece 320 and the through hole installation piece 330 are moved by the cooperation of the long screw rod 310 and the screw hole installation piece 320, so that the relative positions of the movable sliding seat 220 and the fixed seat 230 are driven to realize emergency unlocking.
An electric vehicle comprises a battery changing vehicle body, a battery pack and the locking device. The electric vehicle comprises a vehicle body, a vehicle body mounting framework for connecting a locking battery pack is arranged on the vehicle body of the electric vehicle, a vehicle lock part 200 is arranged on the mounting framework, a battery pack mounting framework is arranged on the battery pack, a pack lock part 100 is arranged on the battery pack mounting framework, and the electric vehicle battery pack is mounted and dismounted through locking and unlocking between the vehicle lock part 200 and the pack lock part 100, so that efficient and accurate power change is realized.
The foregoing is merely illustrative of specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modification of the present invention by using the design concept shall fall within the scope of the present invention.
Claims (10)
1. The locking device with the emergency unlocking function is characterized by comprising a pack locking part arranged on a battery pack frame, a vehicle locking part arranged on a battery exchange vehicle body and an emergency unlocking component, wherein the pack locking part comprises a battery pack hanging piece, and the battery pack hanging piece is provided with a lock hole;
The bicycle lock part comprises a driving part, a sliding seat and a fixing seat, wherein the fixing seat is fixedly arranged on a bicycle body, the fixing seat comprises a bicycle end sleeve member for a battery pack hanging piece to pass through and a guide wheel seat matched with the sliding seat, the sliding seat is provided with a lock tongue for penetrating through the lock hole, the driving part is detachably arranged on the fixing seat, the output end of the driving part is detachably connected to the sliding seat, the driving part pushes the sliding seat to slide relative to the fixing seat, and the lock tongue is driven to insert into or withdraw from the lock hole, so that the locking or unlocking function is completed;
The emergency locking assembly comprises a long screw rod piece, a screw hole installation piece and a through hole installation piece, wherein the screw hole installation piece is detachably installed on the fixed seat, the through hole installation piece is detachably installed on the sliding seat, the long screw rod piece penetrates through the through hole installation piece to be in threaded connection with the screw hole installation piece, the sliding seat is driven to slide relative to the fixed seat through rotating the long screw rod piece, and locking is driven to be inserted into or withdrawn from the locking hole, so that emergency unlocking or emergency locking is completed.
2. The locking device with an emergency unlocking function according to claim 1, wherein the battery suspension member is a flange structure, the bottom of the battery suspension member is fixedly installed with the battery pack frame skeleton through bolts, the locking hole is formed in the upper portion of the battery suspension member, the rolling shaft is installed in the locking hole and is matched with the locking bolt, and when the locking bolt is inserted into the locking hole, the rolling shaft rolls along the movement of the locking bolt.
3. The locking device with an emergency unlocking function according to claim 1, wherein the driving part comprises an electric push rod and a push rod connecting piece, the electric push rod is detachably mounted on the fixing seat, the push rod connecting piece is fixedly assembled on the sliding seat, and a telescopic rod of the electric push rod is detachably connected with the push rod connecting piece.
4. The locking device with the emergency unlocking function according to claim 1, wherein the number of the battery pack hanging pieces is two, the number of the vehicle end assemblies is first vehicle end assemblies and second vehicle end assemblies, the number of the guide wheel seats is two, the number of the guide wheel seats is first guide wheel seats and second guide wheel seats, the first vehicle end assemblies and the second vehicle end assemblies are of sleeve structures, one ends of the sleeves are of flange structures and are used for being fixedly connected with bolts of a framework of a trolley changing body, and first wear plates and second wear plates are arranged on the first vehicle end assemblies and the second vehicle end assemblies respectively.
5. The locking device with the emergency unlocking function according to claim 4, wherein the first guide wheel seat comprises a T-shaped structural member, two first guide wheels and a cover plate, wherein a first mounting hole is formed in one end of the T-shaped structural member, which is compared with a frame, in the vertical direction, and is used for being fixedly connected with a trolley body framework in a matched mode through bolts, second mounting holes are formed in two sides of the wider end of the T-shaped structural member, which are in the two second mounting holes, in the horizontal direction, the two first guide wheels are mounted in the two second mounting holes through bolts, the narrower end of the T-shaped structural member is of a Y-shaped structure, a containing groove used for assembling an electric push rod or a screw hole mounting piece is formed in one side of the Y-shaped structure, and the cover plate is arranged on the containing groove in a covering mode and is locked through the bolts.
6. The locking device with the emergency unlocking function according to claim 4, wherein the second guide wheel seat comprises a U-shaped structural member and two second guide wheels, the U-shaped structural member is fixedly connected with the trolley body framework through bolts, and the two second guide wheels are assembled on two sides of the U-shaped structural member through bolts.
7. The locking device with an emergency unlocking function according to claim 4, wherein the sliding seat comprises two pushing plates and two locking tongues, the pushing plates are strip-shaped plates, a first strip-shaped guide groove and a second strip-shaped guide groove which are matched with guide wheels of the first guide wheel seat and the second guide wheel seat are respectively arranged on the pushing plates, the locking tongues are of T-shaped structures, one wider end of each locking tongue is connected with the pushing plate through a fastening piece, the other end of each locking tongue is inclined in the height direction, and the height and the width of each locking tongue are matched with the locking holes.
8. The locking device with the emergency unlocking function according to claim 1, further comprising a safety control unit, wherein the safety control unit comprises a pressure sensor, a control circuit and an alarm, the pressure sensor is arranged on the fixed seat and corresponds to the lock tongue, the control circuit is electrically connected with the pressure sensor, the alarm and the driving part, when the driving part drives the sliding seat to shift to be in a normal stroke, the pressure sensor is not in contact with the lock tongue, the control circuit connected with the pressure sensor is in an open circuit state, when the driving part is abnormal and is not stopped at a set position, the control circuit drives the lock tongue to continuously move and contact with the pressure sensitive unit of the pressure sensor to bear force, a conductive loop is formed, the control circuit is communicated with the alarm to start an alarm, and meanwhile, the circuit for controlling the driving part is cut off, and the driving part is stopped to drive the lock tongue to continuously shift.
9. An emergency unlocking method of a locking device with an emergency unlocking function is characterized by comprising the locking device according to claims 1 to 8, wherein in case of failure of a driving part of the locking device or no power input, the emergency unlocking function is realized by the following steps:
step one, disassembling a fixed bolt of a cover plate of a first guide wheel seat, and taking down the cover plate;
Step two, disassembling the installation bolts of the telescopic rod of the electric push rod and the push rod connecting piece, and taking down the electric push rod;
Step three, embedding and mounting the screw hole mounting piece on one side, far away from the electric push rod, of the accommodating groove of the first guide wheel seat, covering the accommodating groove with the cover plate, and locking the cover plate into the fixing bolt;
step four, the through hole mounting piece is embedded and mounted on one side, far away from the electric push rod, of the push rod connecting piece;
step five, sequentially passing one threaded end of the long screw rod piece through threaded holes of the through hole mounting piece and the screw hole mounting piece;
And step six, rotating the long screw rod, moving the relative positions of the screw hole installation piece and the through hole installation piece through the cooperation of the long screw rod and the screw hole installation piece, and driving the relative positions of the movable sliding seat and the fixed seat to realize emergency unlocking.
10. An electric vehicle comprising a battery-changing vehicle body and a battery pack, characterized by further comprising a locking device according to any one of claims 1 to 8, wherein the battery pack or a frame on which the battery pack is mounted is detachably mounted on the battery-changing vehicle body of the electric vehicle via the locking device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510120229.7A CN119636384B (en) | 2025-01-25 | 2025-01-25 | Locking device with emergency unlocking function and electric vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510120229.7A CN119636384B (en) | 2025-01-25 | 2025-01-25 | Locking device with emergency unlocking function and electric vehicle |
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| CN119636384A true CN119636384A (en) | 2025-03-18 |
| CN119636384B CN119636384B (en) | 2025-12-16 |
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|---|---|---|---|---|
| WO2018121745A1 (en) * | 2016-12-30 | 2018-07-05 | 上海电巴新能源科技有限公司 | Unlocking device, locking device, battery replacement mobile platform and fast battery replacement system |
| CN114655061A (en) * | 2020-12-23 | 2022-06-24 | 北汽福田汽车股份有限公司 | Locking mechanism, locking system and vehicle |
| CN220076120U (en) * | 2023-05-31 | 2023-11-24 | 奥动新能源汽车科技有限公司 | Locking mechanism |
| CN117227435A (en) * | 2023-04-28 | 2023-12-15 | 奥动新能源汽车科技有限公司 | Battery pack locking mechanism and electric vehicle |
| CN117227441A (en) * | 2023-05-31 | 2023-12-15 | 奥动新能源汽车科技有限公司 | Battery mounting structure dismounting device and battery replacing method |
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2025
- 2025-01-25 CN CN202510120229.7A patent/CN119636384B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018121745A1 (en) * | 2016-12-30 | 2018-07-05 | 上海电巴新能源科技有限公司 | Unlocking device, locking device, battery replacement mobile platform and fast battery replacement system |
| CN114655061A (en) * | 2020-12-23 | 2022-06-24 | 北汽福田汽车股份有限公司 | Locking mechanism, locking system and vehicle |
| CN117227435A (en) * | 2023-04-28 | 2023-12-15 | 奥动新能源汽车科技有限公司 | Battery pack locking mechanism and electric vehicle |
| CN220076120U (en) * | 2023-05-31 | 2023-11-24 | 奥动新能源汽车科技有限公司 | Locking mechanism |
| CN117227441A (en) * | 2023-05-31 | 2023-12-15 | 奥动新能源汽车科技有限公司 | Battery mounting structure dismounting device and battery replacing method |
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| Publication number | Publication date |
|---|---|
| CN119636384B (en) | 2025-12-16 |
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