CN116039571A - Unlocking control method and locking control method for battery lock body of electric automobile - Google Patents
Unlocking control method and locking control method for battery lock body of electric automobile Download PDFInfo
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- CN116039571A CN116039571A CN202211685432.1A CN202211685432A CN116039571A CN 116039571 A CN116039571 A CN 116039571A CN 202211685432 A CN202211685432 A CN 202211685432A CN 116039571 A CN116039571 A CN 116039571A
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- bearing platform
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- 230000001174 ascending effect Effects 0.000 claims description 8
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- 230000008569 process Effects 0.000 abstract description 11
- 230000007246 mechanism Effects 0.000 description 22
- 230000000903 blocking effect Effects 0.000 description 12
- 230000009471 action Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
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- 230000004308 accommodation Effects 0.000 description 3
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S5/00—Servicing, maintaining, repairing, or refitting of vehicles
- B60S5/06—Supplying batteries to, or removing batteries from, vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/80—Exchanging energy storage elements, e.g. removable 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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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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- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to an unlocking control method and a locking control method of a battery lock body of an electric automobile, wherein a bearing platform is controlled to ascend to enable the bearing platform to be in contact with the bottom of a battery in the electric automobile; the bearing platform continues to ascend to enable the locked body to push the first lock body to ascend, and the second lock body is separated from the locked body; judging whether the bearing platform meets the lifting stopping condition or not, and stopping lifting of the bearing platform when the lifting stopping condition is met; and controlling the second lock body to leave the lower part of the locked body, and enabling the bearing platform to descend to be separated from the first lock body to finish unlocking operation. The locking control method operates in reverse. In the locking or unlocking process, an unlocking tool is not needed any more, and the locking or unlocking function can be realized by lifting the bearing platform and combining the movement of the second lock body; the two lock bodies are locked simultaneously, and the two lock bodies are unlocked successively, so that the safety of the battery can be further improved, and the occurrence of safety accidents is greatly reduced.
Description
Technical Field
The invention relates to the technical field of power conversion of electric automobiles, in particular to an unlocking control method and a locking control method of a battery lock body of an electric automobile.
Background
With the development of electric automobile technology, more and more people choose electric automobile to walk instead of walk, however at present because the limitation of technology leads to the time spent to charge electric automobile battery longer, in prior art, provides a power conversion station, realizes the effect that the battery is full through the mode to electric automobile change battery.
In the scheme of changing electricity at present, a lock body is arranged at a vehicle end, a lock core is arranged at a battery end, a battery is transported to an installation position through a power changing trolley in a power changing station, and the lock core is locked on the lock body or unlocked from the lock body through a locking and unlocking tool on the power changing trolley; second, be provided with on the battery charging dolly and add the unblock instrument, because lock core and lock body form are different, add the unblock instrument and also can be different, lead to can not general, add the unblock instrument simultaneously when operating, have water stain or dust to fall on adding the unblock instrument easily, can lead to for a long time to add the unblock instrument and take place the corrosion, influence normal use.
The lock body can be unlocked only by matching one lock body with the lock core in the existing lock body structure, various road conditions can be met in the running process of the electric automobile, continuous jolting can occur, when the lock body is unlocked in the jolting process, the battery can be caused to fall, the electric automobile cannot run, even danger occurs, and safety accidents occur.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the unlocking control method and the locking control method for the battery lock body of the electric automobile, wherein in the locking or unlocking process, the two lock bodies are controlled to work successively to realize locking or unlocking, so that the safety is higher, and in the locking or unlocking process, a locking and unlocking tool is not needed any more, so that the locking or unlocking control method is convenient to use and has wider adaptability.
The technical scheme adopted for solving the technical problems is as follows:
an unlocking control method of a battery lock body of an electric automobile is used for a power exchange station, the power exchange station comprises a parking platform, a battery library and a lifting bearing platform, the parking platform is arranged to allow the electric automobile to be powered on to park, a first lock body and a second lock body are arranged on the electric automobile, a locked body is arranged on the battery, the first lock body is propped against the locked body from the upper side, the second lock body is propped against the locked body from the lower side,
the unlocking control method is that,
the electric automobile to be powered on is parked on a parking platform, and the bearing platform is controlled to ascend so that the bearing platform contacts with the bottom of the battery;
the bearing platform continues to ascend to enable the locked body to push the first lock body to ascend, and the second lock body is separated from the locked body;
judging whether the bearing platform accords with a lifting stopping condition, and if the lifting stopping condition is met, controlling the bearing platform to stop lifting;
and controlling the second lock body to leave the lower part of the locked body, and lowering the bearing platform to enable the locked body to separate from the first lock body to finish unlocking operation.
Further specifically, the stop-rise condition judgment includes at least one of the following conditions,
the rising height of the bearing platform reaches a preset height;
the pressure borne by the bearing platform reaches a preset pressure value.
Further specifically, the rising height of the bearing platform is measured by a distance sensor; the pressure of bearing is measured by a pressure sensor arranged in the bearing platform.
Further specifically, before the carrying platform descends to separate from the first lock body, whether the second lock body is moved away is judged, if yes, the carrying platform can move downwards, and if not, an alarm signal is sent out.
Further specifically, whether the second lock body is moved or not can be judged by detecting through the arranged photoelectric sensor or by judging through the moving distance of the second lock body.
Further specifically, the second lock body leaves the lower part of the locked body in a rotating mode, and the rotation of the second lock body is realized by dragging the steel wire rope through the motor.
A locking control method of battery lock body of electric automobile is used for power exchanging station,
the power exchange station comprises a parking platform, a battery warehouse and a lifting bearing platform, wherein the parking platform is arranged to allow an electric vehicle to be subjected to power exchange to park on, a first lock body and a second lock body are arranged on the electric vehicle, a locked body is arranged on the battery,
the locking control method is that,
taking the battery from the battery library, placing the battery on a bearing platform and under a battery compartment of the electric automobile, and controlling the bearing platform to ascend;
the locked body pushes the first lock body to ascend and judges whether the bearing platform accords with the ascending stopping condition, if so, the bearing platform is controlled to stop ascending;
the second lock body is controlled to move to the lower part of the locked body, the bearing platform moves downwards, the locked body is contacted with the second lock body, and the first lock body is abutted against the locked body;
and the bearing platform continuously descends to be separated from the battery to finish locking operation.
Further specifically, the stop-rise condition judgment includes at least one of the following conditions,
the rising height of the bearing platform reaches a preset height;
the pressure borne by the bearing platform reaches a preset pressure value.
Further specifically, the rising height of the bearing platform is measured by a distance sensor; the pressure of bearing is measured by a pressure sensor arranged in the bearing platform.
Further specifically, when the bearing platform starts to ascend, whether the second lock body is located below the locked body is judged, if yes, the second lock body is controlled to move away from the position below the locked body, then the bearing platform ascends, and if not, the bearing platform ascends.
Further specifically, whether the second lock body is located below the locked body can be judged through detection by the aid of the arranged photoelectric sensor or through the distance of movement of the second lock body.
Further specifically, the second lock body moves to the lower portion of the locked body in a rotating mode, and the second lock body is pushed to rotate through the reset piece.
The beneficial effects of the invention are as follows: the first lock body and the second lock body are arranged on the electric automobile at the same time, and the lock body is not needed on the battery, so that the matching degree of batteries of different types to the electric automobile is greatly increased; in the locking or unlocking process, an unlocking tool is not needed any more, and the locking or unlocking function can be realized by lifting the bearing platform and combining the movement of the second lock body; the two lock bodies are locked simultaneously, and the two lock bodies are unlocked successively, so that the safety of the battery can be further improved, and the occurrence of safety accidents is greatly reduced.
Drawings
FIG. 1 is a schematic view of a first embodiment of a locking mechanism of the present invention;
FIG. 2 is a schematic side cross-sectional view of a first embodiment of a locking mechanism of the present invention;
FIG. 3 is a schematic elevational cross-sectional view of a first embodiment of the locking mechanism of the present invention;
FIG. 4 is a schematic view of a second embodiment of a locking mechanism of the present invention;
FIG. 5 is a second schematic view of a second embodiment of a locking mechanism of the present invention;
FIG. 6 is a schematic side cross-sectional view of a second embodiment of a locking mechanism of the present invention;
FIG. 7 is a schematic elevational cross-sectional view of a second embodiment of the locking mechanism of the present invention;
FIG. 8 is a schematic view of the structure of the fixing base of the present invention;
FIG. 9 is a schematic view of a first lock according to the present invention;
FIG. 10 is a schematic view of a second lock according to the present invention;
FIG. 11 is a force analysis schematic of the locking method of the present invention;
FIG. 12 is a schematic view of the structure of the parking platform of the present invention;
FIG. 13 is a schematic view of a load-bearing platform and an upgrade mechanism according to the present invention;
FIG. 14 is a flow chart of an unlock control method of the present invention;
fig. 15 is a flow chart of the lock control method of the present invention.
In the figure: 1. a fixing seat; 11. a first accommodation groove; 12. a connecting groove; 13. a third accommodation groove; 14. unlocking the hole; 15. a relief groove; 2. a first lock body; 21. a first lock; 211. a first inclined surface; 212. a second accommodation groove; 213. a limit groove; 22. a lock spring; 3. a second lock body; 31. a second lock; 311. a first end; 3111. a top connection portion; 3112. a side connection portion; 3113. a bottom connecting part; 312. a second end; 313. a second inclined surface; 32. locking the opening; 33. a rotating shaft; 4. a locked body; 5. a limiting piece; 6. a connecting rod; 100. ascending a ramp; 200. descending a ramp; 300. a front wheel positioning assembly; 400. a rear wheel positioning assembly; 500. the left side lifting assembly; 600. the right side lifting assembly; 700. a load-bearing platform; 800. and a lifting mechanism.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The invention provides a locking mechanism used on an electric automobile, which is used for locking a battery on the electric automobile, and comprises a fixed seat 1 fixed in a battery compartment, a first lock body 2 and a second lock body 3 which are arranged on the fixed seat 1, wherein the first lock body 2 comprises a first lock 21 and a lock spring 22 for driving the first lock 21 to move downwards, one end of the lock spring 22 is propped against the fixed seat 1, the other end is propped against the first lock 21, a limiting piece 5 is also arranged between the first lock 21 and the fixed seat 1, and the limiting piece 5 can be used for limiting the position of the first lock 21 in the downward movement so as to prevent the first lock 21 from being separated from the fixed seat 1; the second lock body 3 comprises a second lock 31 arranged on the fixed seat 1, a locking opening 32 is arranged on the second lock 31, a locked body 4 is arranged on the battery, and the locked body 4 is cylindrical; when the locking mechanism is at the locking position, the locked body 4 is located on the downward movement path of the first lock 21, meanwhile, the locked body 4 is located in the locking opening 32, the side surface of the locking opening 32 is an opening, the locking opening 32 is inserted from the side surface of the locked body 4 so that a part of the second lock 31 stretches into the lower part of the locked body 4, and the first lock 21 presses the locked body 4 downward on the second lock 31.
As shown in fig. 8 and 9, a circular first accommodating groove 11 is formed in the fixing seat 1, the first lock 21 is also circular, a second accommodating groove 212 is formed along the axial direction of the first lock 21, the first lock 21 can be inserted into the first accommodating groove 11, and the lock spring 22 is arranged in the second accommodating groove 212; one end of the lock spring 212 abuts against the bottom of the first accommodating groove 11, the other end abuts against the bottom of the second accommodating groove 212, the lock spring 22 pushes the first lock 21 outwards, the limiting piece 5 is arranged on the outer side of the fixing seat 1, the limiting piece 5 is inserted into the first accommodating groove 11 from the outer side of the fixing seat 1, meanwhile, a limiting groove 213 is formed in the first lock 21, the limiting piece 5 is inserted into the limiting groove 213, the first lock 21 cannot fall off from the first accommodating groove 11 due to the cooperation of the limiting piece 5 and the limiting groove 213, and the limiting piece 5 comprises a limiting plate and a limiting rod extending inwards from the limiting plate, and is fixed through a screw as shown in fig. 1 and 2; as shown in fig. 5 and 6, the limiting member is a screw passing through the limiting groove; the first lock 21 has an unlocking position and a locking position after moving, wherein the unlocking position is a position where the first lock 21 moves upwards to compress the lock spring 22, and the locking position is a position where the first lock 21 is pushed downwards by the lock spring 22.
The second lock body 3 is provided with two groups of symmetrical two sides of the first lock body 2, wherein, as shown in fig. 10, the second lock body 3 further comprises a rotating shaft 33, the rotating shaft 33 is arranged on the fixed seat 1 and is horizontally arranged, the second lock 31 is arranged on the rotating shaft 33 and can rotate around the rotating shaft 33, the second lock 31 rotates in the vertical direction, the second lock 31 also has two working positions, namely an unlocking position and a locking position, the unlocking position is a position after the second lock 31 moves away from the position right below the first lock 21 and gives way to the movement path of the locked body 4, and the locking position is a position of the second lock 31 right below the first lock 21, which blocks the movement path of the locked body 4; the second lock 31 includes a first end 311 and a second end 312 disposed at two sides of the rotation shaft 33, the locking opening 32 is located at the first end 311, a reset member is disposed between the second end 312 and the fixing base 1, the reset member can drive the first end 311 to rotate towards a locking state, and the reset member adopts a compression spring, as in the first embodiment (fig. 1-3) of the present scheme, a reset member is disposed between the second end 312 and the fixing base 1, the reset member can drive the first end 311 to rotate towards the locking state, and the reset member adopts a compression spring, where the reset member can also be a torsion spring disposed on the rotation shaft 33 and the second lock 31; as shown in fig. 8, a connecting groove 12 is arranged on the fixing base 1 along the horizontal direction, as shown in fig. 2 and 3, a connecting rod 6 is arranged in the connecting groove 12, the connecting rod 6 can slide in the connecting groove 12, two ends of the connecting rod 6 are respectively connected with the second ends 312 of the two second locks 31 in a one-to-one correspondence manner, a third accommodating groove 13 is arranged on the fixing base 1, the third accommodating groove 13 is perpendicular to the connecting rod 6, a compression spring is arranged in the third accommodating groove 13, one end of the compression spring is abutted against the bottom of the third accommodating groove 13, the other end of the compression spring is abutted against the connecting rod 6, and the second embodiment (as shown in fig. 4-7) of the scheme does not adopt a reset piece, and the reset of the second locks 31 is realized by controlling to pull or push the second ends 312.
The locking opening 32 is surrounded by a top connection portion 3111, a side connection portion 3112 and a bottom connection portion 3113, the top connection portion 3111 is disposed opposite to the bottom connection portion 3113, the side connection portion 3112 is connected between the top connection portion 3111 and the bottom connection portion 3113, and the side connection portion 3112 may serve as a blocking member.
For unlocking the second lock 31, the unlocking member may be disposed at the second end 312, for example, in the first embodiment, the unlocking member may be operated to make the second end 312 approach to the reset member and compress the reset member, where the first end 311 moves away from the locking position (i.e. moves to the unlocking position), so that unlocking may be achieved; the unlocking piece is provided with two forms, and the two forms can be alternatively or simultaneously provided; in the first form of the unlocking piece, an unlocking hole 14 is formed in the fixing seat, the unlocking piece is cylindrical and can be inserted into the unlocking hole 14, the unlocking piece can axially move in the unlocking hole 14, one end of the unlocking piece is propped against the connecting rod 6, and the unlocking piece is pushed to move in a manual or electric mode, so that the second end 312 is pushed to achieve the purpose of unlocking; in this form, the unlocking piece can be omitted, only the unlocking hole 14 is left, and a tool is selected to be inserted into the unlocking hole 14 to push the connecting rod 6 during manual operation, wherein the tool can be a screwdriver or the like; in the second form of the unlocking member, a wire rope is connected to the connecting rod 6 or the second end 312, and the wire rope can be driven by a motor to wind up the wire rope so as to pull the connecting rod 6 or the second end 312 to rotate towards the unlocking position; the fixed seat 1 is provided with a yielding groove 15, the steel wire rope is accommodated in the yielding groove 15, the yielding groove 15 is perpendicular to the connecting rod 6, one steel wire rope can be connected with a plurality of locking mechanisms through the yielding groove 15, so that the plurality of locking mechanisms can be controlled simultaneously through one motor, and thus unlocking operations of all locking mechanisms can be controlled simultaneously through one key at the vehicle end; as in the second embodiment, no return member is required, and unlocking and return are achieved by pulling directly on the connecting rod 6 or the second end 312 via an external pull rod or wire rope.
Based on the above structure, in order to ensure that the locked body 4 will not fall off from between the first lock body 2 and the second lock body 3 in the locked state, as shown in fig. 2, the contact position between the first lock 21 and the locked body 4 is set to be a first inclined plane 211, the contact position between the second lock 31 and the locked body 4 is set to be a second inclined plane 313, the second inclined plane 313 is set at one side of the bottom connecting portion 3113 near the locking opening 32, both the first inclined plane 211 and the second inclined plane 313 incline toward the inside of the locking opening 32, based on the bottom surface of the fixing seat 1, the included angle between the first inclined plane 211 and the bottom surface of the fixing seat 1 is controlled to be 3-10 °, preferably 5 °, and the included angle between the second inclined plane 313 and the bottom surface of the fixing seat 1 is controlled to be 5-12 °, preferably 8 °.
As shown in fig. 11, the stress conditions of the first inclined plane 211 and the second inclined plane 313 are analyzed through the design, so that a locking method of the electric automobile is formed, when the locked body 4 is at the locking position, the first lock 21 can downwards generate corresponding thrust to the locked body 4 due to the action of the lock spring 22, and the direction of the thrust force F1 formed at the first inclined plane 211 is downwards inclined due to the contact of the cylindrical surface of the locked body 4, so that the thrust force F1 formed at the first inclined plane can be divided into a first vertical component force F11 downwards vertically and a first horizontal component force F12 horizontally, and the direction of the first horizontal component force F12 faces the inside of the locking opening 32 (namely, the blocking member direction); the second lock 31 forms an upward reaction force F2 due to the gravity borne by the lock body 4 and the downward thrust of the first lock 21, and the reaction force F2 formed at the second inclined surface 313 contacts with the cylindrical surface of the lock body 4, so that the reaction force F2 formed at the second inclined surface is decomposed into a second vertical component force F21 vertically upward and a second horizontal component force F22 horizontally, wherein the direction of the second horizontal component force F22 faces the inside of the locking opening 32 (i.e. the blocking member direction), and the direction of the first vertical component force F11 is opposite to the direction of the second vertical component force F21; the locked body has a tendency to move towards the blocking piece due to the action of the first horizontal component force F12 and the second horizontal component force F22, and the locked body 4 is propped against the blocking piece, so that a locking effect is realized.
When the electric automobile encounters a road condition of jolt or even severe jolt, two conditions can occur, in the first condition, the battery has a trend of upward movement due to inertia action, so that the locked body 4 presses the first lock 21, the first lock 21 increases the thrust F1 of the locked body 4, the first horizontal component force F12 increases, the thrust for driving the locked body 4 to move towards the blocking piece increases, meanwhile, the second lock 31 does not unlock due to the action of the reset piece and is always positioned below the locked body 4, and the locked body 4 only has a trend of moving towards the blocking piece and is not far away from the blocking piece, so that the battery cannot be separated from the lock; in the second case, the battery has a downward movement trend due to inertia action, so that the locked body 4 presses the bottom connecting part 3113 of the second lock 31, the pressure of the locked body 4 to the second lock 31 increases, the reaction force F2 of the second lock 31 to the locked body increases, the second horizontal component force F22 increases, the thrust for driving the locked body 4 to move towards the blocking piece increases, meanwhile, the first lock 21 is abutted against the locked body 4 under the action of the lock spring 22, and the locked body 4 only has a movement trend towards the blocking piece and is not far away from the blocking piece; based on this, by the lock body 4 on jolt even the road conditions that jolt violently, the locking to the battery only can be tighter and tighter to guarantee that the battery can not become flexible and unblock, improved the security performance.
Further, in the structural design, it may be considered that the center of gravity of the locked body 4 is disposed close to the blocking member in the locking position, that is, the center of gravity of the locked body 4 and the axis of the rotation shaft 33 are not on the same vertical line, the downward gravity of the locked body 4 generates a certain torque relative to the axis of the rotation shaft 44, the second lock 31 is driven to move toward the locking position by the torque, the locked body 4 is not separated under the dual action of the resetting member and the torque, and when the resetting member fails, the torque can be continuously used, so that the bottom connecting portion 3113 of the second lock 41 is ensured to be always located below the locked body 4.
Based on the locking mechanism and the locking method, the locking control method and the unlocking control method for the battery lock body of the electric automobile can be formed by applying the locking mechanism and the locking method to a power exchange station, wherein the power exchange station comprises a parking platform, a battery library and a liftable bearing platform 700, and the bearing platform 700 can be arranged on a power exchange trolley; the parking platform is arranged to allow an electric automobile to be powered on to park, and the position of the electric automobile can be adjusted; the parking platform as shown in fig. 12 and 13 comprises an ascending ramp 100 and a descending ramp 200 for guiding, a front wheel positioning assembly 300 and a rear wheel positioning assembly 400 are arranged between the ascending ramp 100 and the descending ramp 200, a left car lifting assembly 500 and a right car lifting assembly 600 are arranged between the front wheel positioning assembly 300 and the rear wheel positioning assembly 400, an area for accommodating a battery changing trolley is arranged between the left car lifting assembly 500 and the right car lifting assembly 600, the left car lifting assembly 500 and the right car lifting assembly 600 can realize lifting of an electric car, and after the electric car ascends, the battery changing trolley can move between the parking platform and a battery bank to convey a battery; the front wheel positioning assembly 300 and the rear wheel positioning assembly 400 can move and position the electric automobile in the left-right direction, so that the battery compartment of the electric automobile is ensured to be aligned with the stop position of the battery replacement trolley; the front wheel positioning assembly 300 is internally provided with a V-shaped installed roller for front and rear positioning of the electric automobile.
The battery bank is used for storing full-charge batteries and insufficient-charge batteries, and when the insufficient-charge batteries are stored in the battery bank, the battery bank can charge the insufficient-charge batteries in real time; the carrying platform 700 can be lifted by the lifting mechanism 800 on the battery changing trolley, the battery changing trolley enters the battery bank, and the full-power battery in the battery bank can be placed on the carrying platform 700 or the power-shortage battery on the carrying platform 700 can be placed in the battery bank by the mechanical gripper or the robot in the battery bank.
The locking mechanism is installed in a battery compartment of the electric automobile, the locked body 4 is installed on the battery, different numbers of locking mechanisms can be properly arranged according to the size of the battery, the number of the locked bodies 4 is consistent with that of the locking mechanisms, wherein the locked body 4 comprises a fixing flange and a locked shaft arranged on the fixing flange, the locked shaft is installed on the battery through the fixing flange, the structure of the locked body 4 is only one embodiment, and the locked body 4 can be fixed on the battery through other installation modes.
When an electric vehicle to be powered on is driven onto a parking platform, the battery with the power shortage on the electric vehicle needs to be removed, and then the battery with the power shortage needs to be unlocked, as shown in fig. 14, the unlocking control method is that,
firstly, parking an electric automobile to be replaced on a parking platform, and adjusting the position of the electric automobile on the parking platform to a proper power replacing position for waiting through a system of a power replacing station; the empty power-changing trolley moves to the position right below the battery compartment of the electric automobile, and the system controls the power-changing trolley to move upwards with the bearing platform 700;
after that, the carrying platform 700 continuously moves upwards with the battery under the power shortage after contacting with the bottom of the battery, the first lock 21 is pushed to move upwards by the locked body 4 on the battery under the power shortage, the first lock 21 pushes the lock spring 22 to deform, the bottom connecting part 3113 of the second lock 21 is separated from the locked body 4, and the first lock 21 is in an unlocked state at this time;
then, judging whether the carrying platform 700 meets the condition of stopping lifting, and if so, controlling the carrying platform 700 to stop lifting by the system; the purpose here is to reach the required height to ensure that the second lock 31 can be unlocked;
finally, the system controls the second lock 31 to move away from the lower part of the locked body 4, and the second lock 31 is unlocked; the carrying platform 700 moves downwards with the battery with the power shortage, the locked body 4 is separated from the first lock 21, and the carrying platform 700 continues to move downwards with the battery with the power shortage until the battery is completely separated from the battery compartment, so that the operations of unlocking and taking down the battery with the power shortage are realized.
In the above-described unlocking step, the determination of the condition for stopping the ascent of the load-bearing platform 700 may be performed by at least one of the following condition establishment judgment,
firstly, by detecting the rising height of the carrying platform 700, a distance sensor may be disposed below the carrying platform 700 or at the bottom of the carrying platform 700, for detecting the rising height of the carrying platform 700, where the distance sensor detects the rising height of the carrying platform 700 and feeds back the height signal to the system, and the system compares the detected rising height signal with a preset height in the system, and when the rising height of the carrying platform 700 reaches the preset height, the system may control the carrying platform 700 to stop rising;
second, by detecting the pressure borne by the load-bearing platform 700, a pressure sensor may be disposed on the load-bearing platform 700, for detecting the pressure generated by the battery on the load-bearing platform 700, when the load-bearing platform 700 moves upward, the locked body 4 pushes the first lock 21 to move upward, due to the effect of the lock spring 22, the pressure borne by the lock body 4 increases and acts on the load-bearing platform 700 through the battery, the pressure sensor measures a corresponding pressure value and feeds back to the system, and compared with a preset pressure value in the system, when the preset pressure value is reached, the load-bearing platform 700 stops rising.
During the unlocking process, before the carrying platform 700 moves downwards (i.e. is about to separate from the first lock 21) with the battery, it needs to be confirmed whether the second lock 31 moves away from the lower side of the locked body 4, so as to make the movement path of the locked body 4 clear, if the second lock 31 has moved away, the carrying platform 700 moves downwards with the battery being deficient, if the second lock 31 is not removed, the unlocking member can be controlled again to unlock, if the second lock 31 is still not removed, it is indicated that the second lock 31 is faulty, and an alarm signal can be sent at this time to inform the working personnel or maintenance personnel of the power exchange station to perform maintenance operation.
The second lock 31 is used for determining whether to move away, and detection and determination can be achieved by arranging a photoelectric sensor beside the second lock 31, or by measuring and calculating the moving distance of the second lock 31.
After the battery with the power shortage is detached from the electric automobile, the battery changing trolley moves into the battery bank, the battery with the power shortage is placed on the battery rack in the battery bank, the battery with the power shortage is taken out from the battery rack, the battery changing trolley carries the battery with the power shortage to the lower part of the electric automobile, and at the moment, locking operation is needed to be carried out on the battery with the power shortage, as shown in figure 15, the locking control method is that,
firstly, transporting a full-charge battery to the position right below a battery compartment of an electric automobile by a power-changing trolley, and controlling the bearing platform 700 to ascend;
then, in the process of lifting the carrying platform 700, the locked body 4 contacts with the first lock 21 and pushes the first lock 21 to move upwards, the first lock 21 pushes the lock spring 22 to deform, and at this time, the first lock 21 is in an unlocked state;
then, judging whether the carrying platform 700 meets the condition of stopping rising, if so, controlling the carrying platform 700 to stop rising by the system; the purpose here is to reach the desired height to ensure that the second lock 31 is brought under the body 4, i.e. that the locking notch 32 is inserted in the body 4;
finally, the system controls the second lock 31 to be inserted from one side of the locked body 4 and move to the lower side of the locked body 4, namely, the downward movement path of the locked body 4 is blocked, the bearing platform 700 moves downward, the full-power battery and the locked body 4 also move downward, the locked body 4 is in contact with the bottom connecting part 3113 of the second lock 31, meanwhile, the first lock 21 is abutted against the locked body 4 under the action of the lock spring 22, the locking operation is completed, and the bearing platform 700 continues to descend away from the electric automobile; the electric automobile can be driven out of the parking platform.
In the locking process, the condition for judging that the load-bearing platform 700 stops rising is the same as the condition for judging that the load-bearing platform 700 rises in the unlocking process.
In order to ensure smooth locking during the locking process, when the load-bearing platform 700 moves upwards, the specific position of the second lock 31 needs to be judged, if the second lock 31 is not at the unlocking position, that is, the second lock 31 is located on the upward movement path of the locked body 4, locking operation is blocked, at this time, the unlocking piece needs to be controlled to unlock the second lock 31, the movement path of the locked body 4 is allowed to be released, and then the system controls the load-bearing platform 700 to ascend; if the second lock 31 is in the unlocked state, the system controls the load-bearing platform 700 to directly rise.
For judging whether the second lock 31 is at the unlocking position, detection and judgment can be realized by arranging a photoelectric sensor beside the second lock 31, or judgment can be performed by measuring and calculating the moving distance of the second lock 31.
In summary, the invention provides a locking mechanism and a locking method for an electric automobile battery, which can enable a locked body 4 to move towards the inside of a locking opening 32 under a locking position, particularly under bumpy road conditions, the more locked the battery is, the more tightly the battery is, the probability of falling is greatly reduced, and the occurrence of safety accidents is reduced; meanwhile, according to the characteristics of the locking mechanism, a locking control method and an unlocking control method for the battery of the electric automobile are designed, the battery is convenient to disassemble and assemble by controlling locking and unlocking, meanwhile, a locking and unlocking tool is not used on the battery changing trolley, and locking and unlocking operations are realized by a combination mode of lifting and vehicle end control; simultaneously, the first lock body 2 and the second lock body 3 are arranged on the electric automobile, the locked body 4 on the battery is only a cylinder, the problem that a lock is not matched with a lock core can be avoided, the processing and adapting surface is wider, and the utilization rate of the power exchanging station can be further improved.
The above embodiments are merely preferred embodiments of the present invention, and the present invention is not limited in any way, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (12)
1. An unlocking control method of a battery lock body of an electric automobile is used for a power exchange station and is characterized in that the power exchange station comprises a parking platform and a lifting bearing platform (700), the parking platform is arranged to allow the electric automobile to be powered on to park, a first lock body (2) and a second lock body (3) are arranged on the electric automobile, a locked body (4) is arranged on the battery, the first lock body (2) is propped against the locked body (4) from the upper side, the second lock body (3) is propped against the locked body (4) from the lower side,
the unlocking control method is that,
the electric automobile to be powered on is parked on a parking platform, and the bearing platform (700) is controlled to ascend so that the bearing platform (700) is contacted with the bottom of the battery;
the bearing platform (700) continues to ascend to enable the locked body (4) to push the first lock body (2) to ascend, and the second lock body (3) is separated from the locked body (4);
judging whether the bearing platform (700) meets the lifting stopping condition, and if the lifting stopping condition is met, controlling the bearing platform (700) to stop lifting;
and controlling the second lock body (3) to leave the lower part of the locked body (4), and lowering the bearing platform (700) to enable the locked body (4) to leave the first lock body (2) so as to finish unlocking operation.
2. The method for controlling unlocking a battery lock of an electric vehicle according to claim 1, wherein the determination of the stop-ascent condition includes at least one of,
the rising height of the bearing platform (700) reaches a preset height;
the pressure borne by the bearing platform (700) reaches a preset pressure value.
3. The unlocking control method of the battery lock body of the electric automobile according to claim 2, wherein the rising height of the bearing platform (700) is measured by a distance sensor; the pressure of the load is measured by a pressure sensor disposed within the load platform (700).
4. The unlocking control method of the battery lock body of the electric automobile according to claim 1, wherein before the carrying platform (700) descends to be separated from the first lock body (2), whether the second lock body (3) is moved away is judged, if yes, the carrying platform (700) can move downwards, and if not, an alarm signal is sent.
5. The unlocking control method of the battery lock of the electric vehicle according to claim 4, wherein the judgment as to whether the second lock (3) is moved is made by detecting through a photoelectric sensor provided or by a distance by which the second lock (3) is moved.
6. The unlocking control method of the battery lock body of the electric automobile according to claim 1, wherein the second lock body (3) leaves the lower portion of the locked body (4) in a rotating mode, and the rotation of the second lock body (3) is achieved by a motor driving a steel wire rope.
7. The locking control method of the battery lock body of the electric automobile is used for a power exchange station and is characterized in that the power exchange station comprises a parking platform and a lifting bearing platform (700), the parking platform is arranged to allow the electric automobile to be replaced to park on the parking platform, a first lock body (2) and a second lock body (3) are arranged on the electric automobile, a locked body (4) is arranged on the battery,
the locking control method is that,
taking a battery from a battery library, placing the battery on a bearing platform (700) and under a battery compartment of an electric automobile, and controlling the bearing platform (700) to ascend;
the locked body (4) pushes the first lock body (2) to ascend, judges whether the bearing platform (700) accords with the ascending stopping condition, and controls the bearing platform (700) to stop ascending if the ascending stopping condition is met;
the second lock body (3) is controlled to move to the lower part of the locked body (4), the bearing platform (700) moves downwards, the locked body (4) is contacted with the second lock body (3), and the first lock body (2) is abutted against the locked body (4);
the carrying platform (700) continues to descend and is separated from the battery to finish locking operation.
8. The locking control method of an electric vehicle battery lock according to claim 7, wherein the stop-up condition judgment includes at least one of,
the rising height of the bearing platform (700) reaches a preset height;
the pressure borne by the bearing platform (700) reaches a preset pressure value.
9. The locking control method of the battery lock body of the electric automobile according to claim 8, wherein the rising height of the carrying platform (700) is measured by a distance sensor; the pressure of the load is measured by a pressure sensor disposed within the load platform (700).
10. The locking control method of the battery lock body of the electric automobile according to claim 7, wherein when the carrying platform (700) starts to ascend, it is judged whether the second lock body (3) is located below the locked body (4), if so, the carrying platform (700) is controlled to ascend after the second lock body (4) is moved away from below the locked body (4), and if not, the carrying platform (700) ascends.
11. The locking control method of the battery lock body of the electric automobile according to claim 10, wherein the judgment of whether the second lock body (3) is positioned below the locked body (4) can be performed by detecting judgment by a photoelectric sensor provided or by judging the distance moved by the second lock body (3).
12. The locking control method of the battery lock body of the electric automobile according to claim 7, wherein the second lock body (3) moves to the lower side of the locked body (4) in a rotating mode, and the rotation of the second lock body (3) is achieved by pushing the second lock body (3) through a reset piece.
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| CN202211685432.1A CN116039571A (en) | 2022-12-27 | 2022-12-27 | Unlocking control method and locking control method for battery lock body of electric automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117284248A (en) * | 2023-11-22 | 2023-12-26 | 茵卡动力新能源江苏有限公司 | Electric automobile battery locking and unlocking device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117284248A (en) * | 2023-11-22 | 2023-12-26 | 茵卡动力新能源江苏有限公司 | Electric automobile battery locking and unlocking device |
| CN117284248B (en) * | 2023-11-22 | 2024-01-30 | 茵卡动力新能源江苏有限公司 | Electric automobile battery locking and unlocking device |
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