CN115091935A - Battery quick-changing device, electric vehicle and quick-changing method - Google Patents
Battery quick-changing device, electric vehicle and quick-changing method Download PDFInfo
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- CN115091935A CN115091935A CN202210804932.6A CN202210804932A CN115091935A CN 115091935 A CN115091935 A CN 115091935A CN 202210804932 A CN202210804932 A CN 202210804932A CN 115091935 A CN115091935 A CN 115091935A
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- locking
- unlocking
- limit sensor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
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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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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention discloses a quick battery changing device, an electric automobile and a quick battery changing method. The battery quick-change device comprises a lock shaft mechanism, a locking limiting block, a locking piece, a driving assembly, an elastic reset piece and a state detection device. The shaft locking mechanism is fixedly connected with the battery pack bracket. The locking limiting block is fixedly connected with the automobile body, a locking groove is formed in the locking limiting block, and the locking shaft mechanism can slide in the locking groove to reach the locking position. The locking piece rotates with the locking stopper to be connected, is equipped with the buckle on the locking piece, and when the locking piece was in locking operating condition, buckle and lock axle mechanism joint were in order to fix lock axle mechanism at the locking position. The driving assembly is used for driving the locking piece to rotate. Elasticity resets one end and automobile body fixed connection of piece, and the other end links to each other with the locking piece, and when the locking piece was in unblock operating condition, elasticity reset the piece and is compression state. The state detection device can detect the working state of the locking piece. The quick battery replacing device is simple in structure and high in battery replacing speed.
Description
Technical Field
The invention relates to the technical field of electric vehicle battery replacement, in particular to a battery quick-replacement device, an electric vehicle and a quick-replacement method.
Background
The energy supply mode of the electric automobile mainly comprises charging and battery replacement. The 'battery replacement' is to replace a power battery which is fully charged in advance with a power battery which needs to be supplemented with electric energy on the new energy automobile so as to achieve the purpose of rapidly supplementing the electric energy. The battery replacement mode has the advantages of shortening the supply time, improving the efficiency, prolonging the service life of the battery, eliminating the short endurance mileage and the like.
At present, an electric automobile battery replacing mechanism mainly comprises two modes of bolt type fixing and buckle type fixing, corresponding battery replacing stations are required to be matched, battery replacing unlocking and locking processes are achieved through special battery replacing equipment, and the problems that the universality of the battery replacing stations is poor, the battery replacing stations are wasted in resources and the like are caused.
Therefore, it is desirable to provide a quick-change device for batteries to solve the above-mentioned problems.
Disclosure of Invention
According to one aspect of the invention, the invention provides a quick battery replacement device which can complete locking and unlocking without special battery replacement equipment and a battery replacement tool, and has the advantages of simple structure and high battery replacement speed.
In order to achieve the purpose, the invention adopts the following technical scheme:
a quick-change device for batteries, comprising:
the shaft locking mechanism is fixedly connected with the battery pack bracket;
the locking limiting block is fixedly connected with the vehicle body, a locking groove is formed in the locking limiting block, the locking groove is provided with a locking position, and the locking shaft mechanism can slide in the locking groove to reach the locking position;
the locking piece is rotationally connected with the locking limiting block, a buckle is arranged on the locking piece, the locking piece has a locking working state and an unlocking working state, and when the locking piece is in the locking working state, the buckle is clamped with the locking shaft mechanism so as to fix the locking shaft mechanism at the locking position;
the output end of the driving assembly can drive the locking piece to rotate;
one end of the elastic resetting piece is fixedly connected with the vehicle body, the other end of the elastic resetting piece is connected with the locking piece, and when the locking piece is in the unlocking working state, the elastic resetting piece is in a compression state;
and the state detection device is arranged on the automobile body and can detect the working state of the locking piece.
Optionally, the drive assembly comprises:
the unlocking connecting rod is rotatably connected with the vehicle body, and the locking piece can be driven to rotate by rotating the unlocking connecting rod so as to change the locking piece from the locking working state to the unlocking working state;
the output end of the driving piece is connected with the unlocking connecting rod and used for driving the unlocking connecting rod to rotate.
Optionally, the unlocking connecting rod is rotatably connected with the vehicle body through a first rotating shaft.
Optionally, the state detection device includes a first locking limit sensor, a second locking limit sensor, a first unlocking limit sensor, and a second unlocking limit sensor;
when the locking piece is in the locking working state, the first locking limiting sensor is in contact with the first side wall of the unlocking connecting rod, the second locking limiting sensor is in contact with the first side wall of the locking piece, and the first side wall of the locking piece is close to the unlocking connecting rod;
when the locking piece is in when unblock operating condition, first unblock limit sensor with the second lateral wall contact of unblock connecting rod, second unblock limit sensor with the second lateral wall contact of locking piece, the second lateral wall of locking piece with elasticity resets and links to each other.
Optionally, the first locking limit sensor, the second locking limit sensor, the first unlocking limit sensor and the second unlocking limit sensor are all pressure sensors.
Optionally, the lock shaft mechanism comprises a lock shaft and a roller;
the locking shaft is fixedly connected with the battery pack support, the rolling shaft is rotatably connected with the locking shaft, and the rolling shaft can slide in the locking groove to reach the locking position.
Optionally, the diameter of the roller is equal to the width of the locking groove.
According to another aspect of the invention, the invention also provides an electric automobile which comprises an automobile body, a battery pack bracket and the battery quick-change device.
According to another aspect of the invention, the invention further provides a quick-change method for an electric vehicle, which is realized based on the quick-change device for the battery and comprises an unlocking method and a locking method;
the unlocking method comprises the following steps:
the controller acquires an unlocking request;
detecting signal states of a first locking limit sensor and a second locking limit sensor;
if the first locking limit sensor is not in contact with the first side wall of the unlocking connecting rod and/or the second locking limit sensor is not in contact with the first side wall of the locking piece, transmitting an unlocking failure signal to the controller, and ending unlocking;
if the first locking limiting sensor is in contact with the first side wall of the unlocking connecting rod and the second locking limiting sensor is in contact with the first side wall of the locking piece, the driving assembly is controlled to drive the locking piece to rotate to unlock;
when the unlocking time reaches a first preset time, detecting the signal states of a first unlocking limit sensor and a second unlocking limit sensor;
if the first unlocking limit sensor is not in contact with the second side wall of the unlocking connecting rod and/or the second unlocking limit sensor is not in contact with the second side wall of the locking piece, transmitting an unlocking failure signal to the controller, and finishing unlocking;
if the first unlocking limit sensor is in contact with the second side wall of the unlocking connecting rod and the second unlocking limit sensor is in contact with the second side wall of the locking piece, transmitting an unlocking success signal to the controller and finishing unlocking;
the locking method comprises the following steps:
the controller acquires a locking request;
detecting signal states of a first unlocking limit sensor and a second unlocking limit sensor;
if the first unlocking limit sensor is not in contact with the second side wall of the unlocking connecting rod and/or the second unlocking limit sensor is not in contact with the second side wall of the locking piece, transmitting a locking failure signal to the controller, and ending locking;
if the first unlocking limit sensor is in contact with the second side wall of the unlocking connecting rod and the second unlocking limit sensor is in contact with the second side wall of the locking piece, the driving assembly is controlled to be away from the locking piece, and the elastic reset piece resets under the action of the elastic restoring force of the elastic reset piece to lock;
when the locking time reaches a second preset time, detecting the signal states of the first locking limit sensor and the second locking limit sensor;
if the first locking limit sensor is not in contact with the first side wall of the unlocking connecting rod and/or the second locking limit sensor is not in contact with the first side wall of the locking piece, a locking failure signal is transmitted to the controller, and unlocking is finished;
and if the first locking limit sensor is in contact with the first side wall of the unlocking connecting rod and the second locking limit sensor is in contact with the first side wall of the locking piece, transmitting a locking success signal to the controller and finishing locking.
Optionally, the first preset time is 3s to 7s, and the second preset time is 3s to 7 s.
The invention has the beneficial effects that:
the invention provides a quick battery changing device which comprises a locking shaft mechanism, a locking limiting block, a locking piece, a driving assembly, an elastic resetting piece and a state detection device. When the unlocking is carried out, the driving assembly drives the locking piece to rotate so that the buckle on the locking piece is separated from the locking shaft mechanism, and at the moment, the locking piece can compress the elastic reset piece due to rotation. When locking, drive assembly keeps away from the locking piece, and elasticity resets and pushes locking piece to rotatory to the direction opposite with the unblock under the effect of self elastic recovery power, accomplishes the locking. The self-locking of the battery quick-change device can be realized by arranging the elastic reset piece. Meanwhile, the battery quick-change device can realize locking and unlocking without using special battery changing equipment and a battery changing tool, and battery changing can be completed only by using common lifting equipment after unlocking is completed, so that the battery changing speed is high, the structure is simple, and the locking reliability is high.
The working state of the locking piece can be detected by the state detection device, the intellectualization of the battery quick-change device is improved, and the experience of a user is further improved.
Drawings
Fig. 1 is a first schematic structural diagram (a locking member is in a locking operating state) of a quick battery replacing device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a quick battery replacement device according to an embodiment of the present invention (a locking member is in an unlocking operating state);
FIG. 3 is a schematic structural diagram of a shaft locking mechanism according to an embodiment of the present invention;
fig. 4 is a flowchart of unlocking provided in an embodiment of the present invention;
fig. 5 is a locking flowchart according to an embodiment of the present invention.
In the figure:
100. a shaft locking mechanism; 110. a lock shaft; 120. a roller; 200. a locking limiting block; 210. a locking groove; 300. a vehicle body; 400. a locking member; 410. buckling; 500. a drive assembly; 510. unlocking the connecting rod; 520. a first rotating shaft; 600. an elastic reset member; 710. a first lock limit sensor; 720. a second locking limit sensor; 730. a first unlocking limit sensor; 740. a second unlocking limit sensor; 800. a second rotating shaft; 900. battery package support.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.
The invention provides a quick battery replacing device which can complete locking and unlocking without special battery replacing equipment and a battery replacing tool, and has the advantages of simple structure and high battery replacing speed.
Specifically, as shown in fig. 1 to 3, the battery quick-change device includes a lock shaft mechanism 100, a lock stopper 200, a lock member 400, a driving assembly 500, an elastic restoring member 600, and a state detection device. The lock shaft mechanism 100 is fixedly connected to the battery pack holder 900, and the battery pack holder 900 is mounted on the vehicle body 300 through the lock shaft mechanism 100. The locking stopper 200 is fixed on the vehicle body 300, and the locking stopper 200 can be fixed by welding, so that the locking stopper 200 and the vehicle body 300 are relatively static. The locking stopper 200 is provided with a locking groove 210, the locking groove 210 is provided with a locking position, and the lock shaft mechanism 100 can slide in the locking groove 210 and slide to the locking position. The locking piece 400 is rotationally connected with the locking limiting block 200, the buckle 410 is arranged on the locking piece 400, and the locking piece 400 has two working states, namely a locking working state and an unlocking working state. When the locking member 400 is in the locking operating state, the buckle 410 is clamped with the locking shaft mechanism 100, and the locking shaft mechanism 100 is fixed at the locking position in the locking groove 210, so that the locking shaft mechanism 100 cannot move in the X-axis direction, the Y-axis direction and the Z-axis direction, and the purpose of mounting the battery pack on the vehicle body 300 is achieved. When the locking member 400 is in the unlocking working state, the buckle 410 is disengaged from the locking shaft mechanism 100, and at this time, the locking mechanism can slide out of the locking groove 210 of the locking limiting block 200, so that the purpose of disengaging the battery pack from the vehicle body 300 is achieved. The output end of the driving assembly 500 can drive the locking member 400 to rotate, so as to switch the locking member 400 from the locking working state to the unlocking working state. In the XZ plane, the lock member 400 needs to rotate in the clockwise direction when the lock operating state is switched to the unlock operating state, and the lock member 400 needs to rotate in the counterclockwise direction when the lock operating state is switched to the unlock operating state. Elasticity resets piece 600's one end and automobile body 300 fixed connection, the other end links to each other with locking piece 400, can constantly compress elasticity piece 600 that resets when locking piece 400 is switched to the in-process of unblock operating condition by locking operating condition, therefore, when switching locking piece 400 back locking operating condition by unblock operating condition, only need to withdraw drive assembly 500 and apply force to locking piece 400, make elasticity reset piece 600 drive locking piece 400 under the effect of self elastic recovery power and rotate along anticlockwise, can make buckle 410 and lock shaft mechanism 100 joint, realize the auto-lock, staff's intensity of labour has been reduced. The state detection mechanism can detect the working state of the locking piece 400, so that the working state of the locking piece 400 is transmitted to a user, the user can easily obtain the battery changing progress, the intellectualization of the battery quick-change device is improved, and the user experience is improved.
Further, with continued reference to fig. 1 and 2, the drive assembly 500 includes an unlock link 510 and a drive member. The unlocking connecting rod 510 is rotatably connected with the vehicle body 300, the output end of the driving member is connected with the unlocking connecting rod 510 to drive the unlocking connecting rod 510 to rotate, and the unlocking connecting rod 510 rotates to drive the locking member 400 to rotate. In this embodiment, when the lock release link 510 is rotated to the horizontal position, i.e., rotated parallel to the X-axis, the lock member 400 is in the lock release operation state, and when the lock release link 510 is not in contact with the lock member 400, the lock member 400 is in the lock operation state. The driving piece can be a motor or other equipment capable of outputting rotary motion, and the driving piece is selected according to actual needs.
Alternatively, the unlock link 510 may be rotatably coupled to the vehicle body 300 by the first rotating shaft 520. Through setting up first pivot 520, can improve unblock connecting rod 510 pivoted smoothness nature and stability, guarantee the reliability of unblock connecting rod 510 work. The first rotating shaft 520 may be connected to an end of the unlocking link 510, or may be connected to a middle of the unlocking link 510, and may be disposed according to actual requirements. Similarly, the locking member 400 can be rotatably connected to the locking stopper 200 via a second rotating shaft 800. In this embodiment, the lock member 400 is disposed above the lock stopper 200 in the Y-axis direction.
Further, the state detection mechanism includes a first locking limit sensor 710, a second locking limit sensor 720, a first unlocking limit sensor 730, and a second unlocking limit sensor 740. As shown in fig. 2, for convenience of understanding, in the present embodiment, a sidewall above the unlocking link 510 is defined as a first sidewall of the unlocking link 510, and a sidewall below the unlocking link 510 is defined as a second sidewall of the unlocking link 510. As shown in fig. 1, a right side wall of the lock member 400 is positioned as a first side wall of the lock member 400, and a left side wall of the lock member 400 is defined as a second side wall of the lock member 400. When the locking member 400 is in the locking operation state, the first locking limit sensor 710 contacts with the first side of the unlocking link 510, and the second locking limit sensor 720 contacts with the first side wall of the locking member 400. At this time, the first locking limit sensor 710 and the second locking limit sensor transmit a signal of the locked state to the controller of the vehicle body 300. When the lock member 400 is in the unlock operation state, the first unlock limit sensor 730 contacts the second sidewall of the unlock link 510, and the second unlock limit sensor 740 contacts the second sidewall of the lock member 400. At this time, the first and second unlocking limit sensors 730 and 740 transmit the unlocking state signal to the controller of the vehicle body 300.
Preferably, the first locking limit sensor 710, the second locking limit sensor 720, the first unlocking limit sensor 730 and the second unlocking limit sensor 740 may be pressure sensors, proximity sensors, or other sensors, and may be selected according to actual needs.
Further, with continued reference to fig. 1 and fig. 2, in the present embodiment, the locking stopper 200 is an inverted U-shaped structure, the locking member 400 is also an inverted U-shaped structure, and the top of the locking groove 210 of the inverted U-shaped locking stopper 200 is a locking position. The catch 410 is provided on one side wall of the lock member 400. More preferably, the buckle 410 may be disposed perpendicular to the side wall of the locking member 400, and the center of the second rotating shaft 800 is disposed on the central axis of the locking groove 210, and this structural design enables the buckle 410 to better limit the position of the shaft locking mechanism 100 when the locking member 400 is in the locking working state.
Preferably, the width (length along the X-axis direction) of the locking limiting block 200 may be the same as the width (length along the X-axis direction) of the locking member 400, and when the locking member 400 is in the locking working state, the locking member 400 overlaps with the side wall of the locking limiting block 200, so that the structure of the quick battery replacement device is more compact.
Preferably, as shown in fig. 3, the lock shaft mechanism 100 includes a lock shaft 110 and a roller 120. The locking shaft 110 is fixedly connected to the battery pack holder 900, the roller 120 is rotatably connected to the locking shaft 110, and the roller 120 can slide in the locking groove 210 to achieve a locking position. Through the arrangement of the rolling shaft 120 rotatably connected with the lock shaft 110, in the process of clamping the buckle 410 on the locking piece 400 with the rolling shaft 120, the sliding friction between the buckle 410 and the rolling shaft 120 can be converted into rolling friction, so that the friction force between the rolling shaft 120 and the buckle 410 is reduced, the rolling shaft 120 and the buckle 410 can be protected, and the service life of the quick battery change device is prolonged.
Further, in order to enable the groove wall of the locking groove 210 to limit the displacement of the roller 120 along the X-axis direction, the diameter of the roller 120 is set to be equal to the width of the locking groove 210, so that the roller 120 is prevented from shaking in the locking groove 210, and the stability of the battery pack installation is improved.
The invention further provides an electric automobile which comprises an automobile body 300, a battery pack bracket 900 and the battery quick-change device. The electric automobile has the advantages of being high in battery replacement speed and capable of achieving battery replacement without a special battery replacement station or battery replacement equipment.
The invention also provides a quick-change method of the electric automobile, which is based on the quick-change device for the battery. The quick-change method of the electric automobile comprises an unlocking method and a locking method.
As shown in fig. 4, the unlocking method includes the following steps:
the unlocking method comprises the following steps:
s100: the vehicle body controller obtains an unlocking request.
When the user replaces the battery, an unlocking request needs to be sent to the vehicle body controller, and after the unlocking is successful, the battery pack support 900 is taken down to replace the battery with full capacity.
S200: the signal states of the first locking limit sensor 710 and the second locking limit sensor 720 are detected.
Before unlocking, whether the battery pack support 900 is in the locked state or not is confirmed, and only the battery pack in the locked state can be subsequently unlocked.
If the first locking limit sensor 710 is not in contact with the first sidewall of the unlocking link 510 and/or the second locking limit sensor 720 is not in contact with the first sidewall of the locking member 400, an unlocking failure signal is transmitted to the vehicle body controller, and the unlocking is finished.
This situation indicates that the locking member 400 is not in a normal locking state, and the battery quick-change device is abnormal in function and cannot perform subsequent unlocking operation, so that the unlocking operation is completed, and then the battery quick-change device can be overhauled.
If the first locking limit sensor 710 contacts with the first sidewall of the unlocking link 510 and the second locking limit sensor 720 contacts with the first sidewall of the locking member 400, the battery replacement controller controls the driving assembly 500 to drive the locking member 400 to rotate for unlocking.
This indicates that the locking member 400 is in a normal locked state, and the battery quick-change device is functioning properly and can be unlocked.
S300: when the unlocking time reaches a first preset time, the signal states of the first unlocking limit sensor 730 and the second unlocking limit sensor 740 are detected.
When the locking piece 400 is in a normal locking state, the battery replacement controller controls the battery quick-change device to unlock. And after the unlocking for the first preset time, detecting whether the unlocking is successful. The first preset time may be 3s-7s, and may be, for example, 3s, 4s, 5s, 6s, 7s, or the like, as the case may be.
If the first unlocking limit sensor 730 is not in contact with the second sidewall of the unlocking link 510 and/or the second unlocking limit sensor 740 is not in contact with the second sidewall of the lock member 400, an unlocking failure signal is transmitted to the body controller, and unlocking is finished.
This situation indicates that the locking member 400 does not reach the position of the unlocking operation state, and the unlocking function of the quick battery replacing device is abnormal, and subsequent maintenance is required.
If the first unlocking limit sensor 730 contacts the second sidewall of the unlocking link 510 and the second unlocking limit sensor 740 contacts the second sidewall of the lock member 400, an unlocking success signal is transmitted to the vehicle body controller, and the unlocking is completed.
This situation indicates that the battery quick-change device functions normally and the unlocking is successful. At this time, the battery pack holder 900 may be removed by using a common lifting device to replace the battery.
As shown in fig. 5, the locking method includes the steps of:
s100: the vehicle body controller obtains a locking request.
After the battery replacement is completed, the replaced battery pack with full capacity needs to be installed on the vehicle body 300, at this time, the user needs to send a locking request to the vehicle body controller, and the installation of the battery pack is completed after the locking is successful.
S200: the signal states of the first and second unlocking limit sensors 730 and 740 are detected.
Before locking, it is determined whether the battery pack holder 900 is in the unlocked state, and only the battery pack in the unlocked state can be subsequently locked.
If the first unlocking limit sensor 730 is not in contact with the second sidewall of the unlocking link 510 and/or the second unlocking limit sensor 740 is not in contact with the second sidewall of the locking member 400, a locking failure signal is transmitted to the body controller, and locking is finished.
This situation indicates that the locking member 400 is not in the normal unlocking state, and the battery quick-change device is out of function, and subsequent locking work cannot be performed, so that the locking is completed, and then the battery quick-change device can be overhauled.
If the first unlocking limit sensor 730 contacts with the second sidewall of the unlocking connecting rod 510 and the second unlocking limit sensor 740 contacts with the second sidewall of the locking member 400, the battery replacement controller controls the driving assembly 500 to be far away from the locking member 400, and the elastic reset member 600 resets under the action of the elastic restoring force of itself to lock.
This indicates that the locking member 400 is in a normal unlocked state and the battery quick-change device is functioning properly and capable of locking.
S300: and when the locking time reaches a second preset time, detecting the signal states of the first locking limit sensor 710 and the second locking limit sensor 720.
When the locking piece 400 is in a normal unlocking state, the battery replacement controller controls the battery quick-change device to lock. And after locking for a second preset time, detecting whether locking is successful. The second preset time may be 3s-7s, and may be, for example, 3s, 4s, 5s, 6s, 7s, or the like, as the case may be.
If the first locking limit sensor 710 is not in contact with the first sidewall of the unlocking link 510 and/or the second locking limit sensor 720 is not in contact with the first sidewall of the locking member 400, a locking failure signal is transmitted to the vehicle body controller, and unlocking is finished.
This indicates that the locking member 400 has not reached the position for locking the operating state, and the battery quick-change device is abnormally locked and needs to be repaired.
If the first locking limit sensor 710 is in contact with the first sidewall of the unlocking link 510 and the second locking limit sensor 720 is in contact with the first sidewall of the locking member 400, a locking success signal is transmitted to the vehicle body controller, and locking is finished.
This situation indicates that the battery quick-change device functions normally and the locking is successful. At this time, the battery replacement is already completed.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A quick-change device for batteries, comprising:
the lock shaft mechanism (100) is fixedly connected with the battery pack bracket (900);
the locking limiting block (200) is fixedly connected with the vehicle body (300), a locking groove (210) is formed in the locking limiting block (200), the locking groove (210) is provided with a locking position, and the locking shaft mechanism (100) can slide in the locking groove (210) to reach the locking position;
the locking piece (400) is rotatably connected with the locking limiting block (200), a buckle (410) is arranged on the locking piece (400), the locking piece (400) has a locking working state and an unlocking working state, and when the locking piece (400) is in the locking working state, the buckle (410) is clamped with the shaft locking mechanism (100) so as to fix the shaft locking mechanism (100) at the locking position;
a drive assembly (500), an output end of the drive assembly (500) being capable of driving the lock member (400) to rotate;
the elastic reset piece (600), one end of the elastic reset piece (600) is fixedly connected with the car body (300), the other end of the elastic reset piece is connected with the locking piece (400), and when the locking piece (400) is in the unlocking working state, the elastic reset piece (600) is in a compression state;
and the state detection device is arranged on the vehicle body (300) and can detect the working state of the locking piece (400).
2. The quick-change device for batteries according to claim 1, characterized in that said driving assembly (500) comprises:
the unlocking connecting rod (510) is rotatably connected with the vehicle body (300), and the locking piece (400) can be driven to rotate by rotating the unlocking connecting rod (510) so that the locking piece (400) is changed from the locking working state to the unlocking working state;
the output end of the driving piece is connected with the unlocking connecting rod (510) and used for driving the unlocking connecting rod (510) to rotate.
3. The quick-change device for batteries according to claim 2, characterized in that said unlocking link (510) is rotatably connected to said vehicle body (300) by means of a first rotation shaft (520).
4. The quick-change device for batteries according to claim 2, characterized in that said condition detection means comprise a first locking limit sensor (710), a second locking limit sensor (720), a first unlocking limit sensor (730) and a second unlocking limit sensor (740);
when the locking piece (400) is in the locking working state, the first locking limit sensor (710) is in contact with the first side wall of the unlocking connecting rod (510), the second locking limit sensor (720) is in contact with the first side wall of the locking piece (400), and the first side wall of the locking piece (400) is close to the unlocking connecting rod (510);
when the locking piece (400) is in the unlocking working state, the first unlocking limiting sensor (730) is in contact with the second side wall of the unlocking connecting rod (510), the second unlocking limiting sensor (740) is in contact with the second side wall of the locking piece (400), and the second side wall of the locking piece (400) is connected with the elastic resetting piece (600).
5. The quick-change device for batteries according to claim 4, characterized in that the first locking limit sensor (710), the second locking limit sensor (720), the first unlocking limit sensor (730) and the second unlocking limit sensor (740) are all pressure sensors.
6. The quick-change device for batteries according to any one of claims 1 to 5, characterized in that said lock shaft mechanism (100) comprises a lock shaft (110) and a roller (120);
the battery pack locking device is characterized in that the locking shaft (110) is fixedly connected with the battery pack support (900), the rolling shaft (120) is rotatably connected with the locking shaft (110), and the rolling shaft (120) can slide in the locking groove (210) to reach the locking position.
7. The quick-change device for batteries according to claim 6, characterized in that the diameter of said roller (120) is equal to the width of said locking groove (210).
8. An electric vehicle, characterized in that it comprises a vehicle body (300), a battery pack holder (900) and a battery quick-change device according to any one of claims 1-7.
9. A quick-change method for an electric vehicle is realized on the basis of the quick-change device for the battery of any one of claims 1 to 7, and is characterized by comprising an unlocking method and a locking method;
the unlocking method comprises the following steps:
the vehicle body controller acquires an unlocking request;
detecting signal states of a first locking limit sensor (710) and a second locking limit sensor (720);
if the first locking limit sensor (710) is not in contact with the first side wall of the unlocking connecting rod (510) and/or the second locking limit sensor (720) is not in contact with the first side wall of the locking piece (400), transmitting an unlocking failure signal to the automobile body controller, and finishing unlocking;
if the first locking limit sensor (710) is in contact with the first side wall of the unlocking connecting rod (510), and the second locking limit sensor (720) is in contact with the first side wall of the locking piece (400), the switching controller controls a driving assembly (500) to drive the locking piece (400) to rotate so as to unlock;
when the unlocking time reaches a first preset time, detecting the signal states of a first unlocking limit sensor (730) and a second unlocking limit sensor (740);
if the first unlocking limit sensor (730) is not in contact with the second side wall of the unlocking connecting rod (510) and/or the second unlocking limit sensor (740) is not in contact with the second side wall of the locking piece (400), transmitting an unlocking failure signal to the automobile body controller, and ending unlocking;
if the first unlocking limit sensor (730) is in contact with the second side wall of the unlocking connecting rod (510) and the second unlocking limit sensor (740) is in contact with the second side wall of the locking piece (400), transmitting an unlocking success signal to the automobile body controller, and ending unlocking;
the locking method comprises the following steps:
the vehicle body controller acquires a locking request;
detecting signal states of the first unlocking limit sensor (730) and the second unlocking limit sensor (740);
if the first unlocking limit sensor (730) is not in contact with the second side wall of the unlocking connecting rod (510) and/or the second unlocking limit sensor (740) is not in contact with the second side wall of the locking piece (400), transmitting a locking failure signal to the automobile body controller, and ending locking;
if the first unlocking limit sensor (730) is in contact with the second side wall of the unlocking connecting rod (510), and the second unlocking limit sensor (740) is in contact with the second side wall of the locking piece (400), the battery replacement controller controls the driving assembly (500) to be away from the locking piece (400), and the elastic reset piece (600) resets under the action of self elastic restoring force to lock;
when the locking time reaches a second preset time, detecting the signal states of the first locking limit sensor (710) and the second locking limit sensor (720);
if the first locking limit sensor (710) is not in contact with the first side wall of the unlocking connecting rod (510) and/or the second locking limit sensor (720) is not in contact with the first side wall of the locking piece (400), transmitting a locking failure signal to the automobile body controller, and ending unlocking;
if the first locking limit sensor (710) is in contact with the first side wall of the unlocking connecting rod (510) and the second locking limit sensor (720) is in contact with the first side wall of the locking piece (400), a locking success signal is transmitted to the automobile body controller, and locking is finished.
10. The method for rapidly replacing an electric vehicle according to claim 9, wherein the first preset time is 3s to 7s, and the second preset time is 3s to 7 s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210804932.6A CN115091935A (en) | 2022-07-08 | 2022-07-08 | Battery quick-changing device, electric vehicle and quick-changing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210804932.6A CN115091935A (en) | 2022-07-08 | 2022-07-08 | Battery quick-changing device, electric vehicle and quick-changing method |
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| CN115091935A true CN115091935A (en) | 2022-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210804932.6A Pending CN115091935A (en) | 2022-07-08 | 2022-07-08 | Battery quick-changing device, electric vehicle and quick-changing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115742846A (en) * | 2022-11-17 | 2023-03-07 | 中国第一汽车股份有限公司 | Quick-change electric device for vehicle end |
| CN115923581A (en) * | 2022-11-17 | 2023-04-07 | 中国第一汽车股份有限公司 | Vehicle end quick-change power system and method |
-
2022
- 2022-07-08 CN CN202210804932.6A patent/CN115091935A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115742846A (en) * | 2022-11-17 | 2023-03-07 | 中国第一汽车股份有限公司 | Quick-change electric device for vehicle end |
| CN115923581A (en) * | 2022-11-17 | 2023-04-07 | 中国第一汽车股份有限公司 | Vehicle end quick-change power system and method |
| CN115742846B (en) * | 2022-11-17 | 2024-04-16 | 中国第一汽车股份有限公司 | Car end quick-change device |
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