CN115056753B - Battery quick-change device with vehicle end control function, vehicle and method - Google Patents
Battery quick-change device with vehicle end control function, vehicle and method Download PDFInfo
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- CN115056753B CN115056753B CN202210400603.5A CN202210400603A CN115056753B CN 115056753 B CN115056753 B CN 115056753B CN 202210400603 A CN202210400603 A CN 202210400603A CN 115056753 B CN115056753 B CN 115056753B
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- 238000000034 method Methods 0.000 title claims abstract description 73
- 230000007246 mechanism Effects 0.000 claims abstract description 98
- 230000009471 action Effects 0.000 claims abstract description 18
- 230000008569 process Effects 0.000 claims description 47
- 239000000523 sample Substances 0.000 claims description 33
- 230000008859 change Effects 0.000 claims description 19
- 238000013016 damping Methods 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 238000011217 control strategy Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000001212 derivatisation Methods 0.000 description 1
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Classifications
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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
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention relates to a battery fast-assembling device with vehicle end control, a vehicle and a method. Comprises a lock hook mechanism, a lock rod mechanism, a locking judgment mechanism and a locking control mechanism. When the battery pack needs to be replaced, the tray or lifting type movable support, the trolley, the movable trolley/box and other equipment support and counteract the gravity of the battery pack; then the vehicle end controls the connection of the unlocking battery pack and the whole vehicle; the controller/sensor of the vehicle end control locking mechanism executes the action of changing the electrolytic lock, so that the battery pack is separated from the whole vehicle; after the battery pack is separated from the whole vehicle, the battery pack to be replaced is supported and installed at the battery pack installation position, and the controller/sensor of the vehicle end control locking mechanism executes the power-exchanging locking action again, so that the locking connection of the battery pack and the whole vehicle can be realized. The invention can complete quick power exchange or battery disassembly without depending on the special power exchange equipment of the power exchange station, namely, in any power exchange station and any occasion, as long as the common tray is provided, the power exchange speed is high, the mechanism is simple, and the locking reliability is higher.
Description
Technical Field
The invention relates to the technical field of new energy automobiles, in particular to a battery fast-assembling device with vehicle end control, a vehicle and a method.
Background
The new energy automobile has the advantage of green environmental protection, but the continuation of journey is the most important problem of limiting new energy automobile development all the time. At present, the charging of the power battery of the electric automobile is difficult to be completed in a short time, so that the main scheme for ensuring that the new energy automobile can supplement electric energy in a short time is 'power conversion'. The power battery to be charged in advance is replaced by the power battery which needs to be supplemented with electric energy on the new energy automobile, so that the purpose of quickly supplementing the electric energy is achieved.
The existing electric automobile power exchange mechanisms all need to rely on dedicated power exchange equipment of a power exchange station, namely the power exchange equipment of the power exchange station is bound with a power exchange structure, so that the universality of a power exchange platform is reduced, and the power waste of the power exchange station is caused; at present, battery pack power conversion is mainly divided into modes such as side power conversion and bottom power conversion, a power conversion mechanism is divided into a semi-fixed bolt fastening mode, a ratchet fastening mode, an unlocking connecting rod sliding block mode and other modes, the mechanical life of clamping is longer, but the mechanism is complex, and the locking reliability is poor.
Disclosure of Invention
The invention provides a battery fast-assembling device, a vehicle and a method with vehicle end control, which can finish fast power exchange or battery disassembly only by a common tray without depending on special power exchange equipment of a power exchange station, namely, in any power exchange station and any occasion; and the power conversion speed is high, the mechanism is simple, the locking reliability is higher, and the problem that the special power conversion equipment of the power conversion station needs to be relied on is solved.
The technical scheme of the invention is as follows in combination with the accompanying drawings:
the embodiment of the invention provides a battery quick-change device with vehicle end control, which comprises a latch hook mechanism 1, a lock rod mechanism 2, a locking judgment mechanism 3 and a locking control mechanism 4;
The lock hook mechanism 1 is fixed at the whole vehicle end and comprises a base 11, a lock hook 12, a connecting rod 13, a damping limiting block 14, a first spring 15 and a fixed shaft 16 which are arranged in a shell; the connecting rod 13 is fixed on the base 11; two ends of the connecting rod 13 are connected with the upper ends of the two lock hooks 12 through a fixed shaft 16; both ends of the first spring 15 are fixed with the inner side of the upper end of the lock hook 12; the latch hook 12 freely rotates with the fixed shaft 16 as a central shaft; the lower end of the connecting rod 13 is provided with a damping limiting block 14;
the lock rod mechanism 2 is fixed at the battery pack end and comprises a lock rod base 21, a lock bolt 22 and a limiting block 23; the lock bolt 22 is arranged in the lock rod base 21; the limiting block 23 is arranged at one end of the lock plunger 22 and is matched with the groove of the lock plunger base 21 to limit the lock plunger 22;
The lock-up determination mechanism 3 includes a lock-up determination mechanism housing 31, and a sensor probe 32 and a first circuit board provided in the lock-up determination mechanism housing 31; the sensor probe 32 is fixed on the base 11 and is connected with the first circuit board; the first circuit board is fixed on the rear panel of the base 11, the leading-out circuit is communicated with the locking control mechanism 4 to realize signal communication, and the position signal of the lock hook 12 is fed back in real time to judge whether locking and unlocking are in place or not;
The locking control mechanism 4 comprises a locking control mechanism shell 41, and a lock rod 42, a second spring, a permanent magnet and a second circuit board which are arranged inside the locking control mechanism shell 41; the locking control mechanism 4 is arranged on the rear panel of the base 11; the first circuit board is connected with the second circuit board; the second circuit board is connected with the controller and receives control execution instructions sent by the controller and the sensor probe 32; the tail of the lock rod 42 is provided with an electromagnet structure, the electromagnetic energy generated can generate electromagnetic attraction action with the permanent magnet, and the electromagnetic attraction force can counteract and compress the second spring.
Further, the connecting rod 13 is in an "I" shape.
Further, one side of the lock plunger 22 is of a square structure with a groove, and is matched with the lock plunger base 21 to limit degrees of freedom in 4 directions; the other side of the lock bolt 22 is in a cylindrical structure and is matched with the lower end of the lock hook 12, so that the locking connection between the battery pack end and the whole vehicle end is realized.
Further, the limiting block 23 is in a T shape.
Further, the sensor probe 32 includes an unlock determination probe 321 and a lock determination probe 322; the unlock determination probe 321 feeds back the unlock in-place information in the unlock state, and the lock determination probe 322 feeds back the lock in-place information when the lock hook 12 is reset and the lock determination probe 322 is blocked.
Further, the lower end of the latch hook 12 is an arc-shaped groove 121; the lower end of the arc-shaped groove 121 is provided with a guide structure 111.
Further, when the locking control mechanism 4 receives a control execution command sent by the controller or the sensor probe 32, the electromagnet structure at the tail of the lock rod 42 generates electromagnetism and generates electromagnetic attraction action with the permanent magnet in the locking control module shell 41, the electromagnetic attraction counteracts and compresses the second spring, the lock rod 42 is retracted into the locking control module shell 41, and the front end face of the lock rod 42 is lower than the front panel of the base 11; at this time, the locking hook 12 is released from contact with the arc-shaped groove 121 of the locking hook 12, so as to release the limiting rotation of the locking hook 12, and ensure that the locking hook 12 is in an unlocking state, namely, the battery pack end is disconnected from the whole vehicle end.
The embodiment of the invention provides a vehicle, which comprises a battery quick-change device with vehicle end control.
The embodiment of the invention also provides a battery quick-change method with vehicle end control, which is realized by a battery quick-change device with vehicle end control and comprises an unlocking process and a locking process;
The unlocking process is as follows:
When the whole car starts to quickly change electricity, the lock rod 42 retreats to release the limit rotation of the lock hook 12, the tray bracket moves downwards to drive the battery pack to move downwards, meanwhile, the lock bolt 22 fixed at the end of the battery pack moves downwards, the barb structure of the lock hook 12 receives downward force from the lock bolt 22, so that the lock hook 12 is stressed to rotate and compress the first spring 15; the lock bolt 22 moves downwards along with the battery pack, and after the lock hook 12 is separated, the battery pack end and the whole vehicle end are separated;
The locking process is as follows:
when the whole vehicle starts to quickly change electricity, the battery pack to be changed moves upwards, the positioning and upwards moving to a preset position, the lock plunger 22 contacts with the arc-shaped groove 121 of the lock hook 12 and pushes the lock hook 12 to rotate, and the first spring 15 is compressed; as the latch 22 continues to move upward, when the latch 22 reaches the predetermined position and contacts the damping stopper 14, at this time, the latch 22 is separated from the arc-shaped groove 121 of the latch hook 21, and the latch hook 12 is reset under the action of the first spring force 15.
Further, after the unlocking process and the locking process are completed, performing 0 times or 1 time or 2 times of self-checking;
The specific process of the self-test is as follows:
checking whether the state of the high-voltage circuit meets the threshold requirement;
Checking whether the state of the circuit meets the threshold requirement;
checking whether the insulating and voltage-resistant states meet the threshold requirement;
It is checked whether the temperature state meets the threshold requirement.
The beneficial effects of the invention are as follows:
The invention can finish quick power exchange or battery disassembly as long as the common tray is arranged on any power exchange station and any occasion without depending on the special power exchange equipment of the power exchange station; and the quick-change mechanism is a clamping type quick-change mechanism, the power change speed is high, the mechanism is simple, and the locking reliability is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the whole structure of a battery quick-change device with vehicle end control according to the present invention;
FIG. 2 is a schematic view of an angle of a latch hook mechanism, a locking judgment mechanism and a locking control mechanism in a battery quick-change device with vehicle end control according to the present invention;
FIG. 3 is another schematic view of the latch hook mechanism, the locking determination mechanism and the locking control mechanism in the battery quick-change device with vehicle end control according to the present invention;
FIG. 4 is a schematic structural view of a locking bar mechanism in a battery quick-change device with vehicle end control according to the present invention;
FIG. 5 is a schematic diagram of the lock lever mechanism in the unlocked state in the battery quick-change device with vehicle end control according to the present invention;
Fig. 6 is a schematic diagram of a three-dimensional structure of the whole vehicle when the whole vehicle starts to perform quick power change;
Fig. 7 is a schematic front view of the whole vehicle when the vehicle starts to perform quick power change;
fig. 8 is a schematic diagram of a flow of a vehicle end controlling a whole vehicle to perform quick power change.
In the figure:
1. A latch hook mechanism;
11. A base; 12. a latch hook; 13. a connecting rod; 14. damping limiting blocks; 15. a first spring; 16. a fixed shaft;
111. a guide structure; 121. an arc-shaped groove;
2. a lock lever mechanism;
21. a lock lever base; 22. a lock bolt; 23. a limiting block;
3. a lock determination mechanism;
31. a lock determination mechanism housing; 32. a sensor probe;
321. Unlocking the judging probe; 322. locking the judging probe;
4. a lock control mechanism;
41. a lock control mechanism housing; 42. a lock rod.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
Example 1
Referring to fig. 1-3, an embodiment of the invention provides a battery quick-assembly device with vehicle end control, which comprises a latch hook mechanism 1, a latch rod mechanism 2, a locking judging mechanism 3 and a locking control mechanism 4.
The lock hook mechanism 1 is fixed at the whole vehicle end and is used for locking and fixing the battery pack end and the whole vehicle end, and is a movement mechanism for realizing the locking process and the unlocking process of the battery pack.
The latch hook mechanism 1 comprises a base 11, a latch hook 12, a connecting rod 13, a damping limiting block 14, a first spring 15 and a fixed shaft 16 which are arranged in a shell.
The base 11 is rectangular.
The lower end of the latch hook 12 is provided with an arc-shaped groove 121; the lower end of the arc-shaped groove 121 is provided with a guide structure 111.
The connecting rod 13 is I-shaped.
The damping limiting block 14 is made of elastic material, limits the lock plunger 22 to move upwards continuously, and is tightly attached to the lock plunger 22 in real time, so that a fit clearance between the lock hook 12 and the lock plunger 22 is eliminated, and the relative movement trend is reduced.
The connecting rod 13 is fixed on the base 11; two ends of the connecting rod 13 are connected with the upper ends of the two lock hooks 12 through a fixed shaft 16; both ends of the first spring 15 are fixed with the inner side of the upper end of the lock hook 12; the latch hook 12 freely rotates with the fixed shaft 16 as a central shaft; the lower end of the connecting rod 13 is provided with a damping limiting block 14; the two ends of the connecting rod 13 cooperate with the first spring 15 to limit the locking hook 12, and limit the rotation range of the locking hook 12 taking the fixed shaft 16 as the central shaft.
Referring to fig. 2, a schematic diagram of the first spring 15 in a free state is shown, the first spring 15 is compressed and stressed, and thrust is applied to the latch hook 12 in real time, so that the barb structure of the latch hook 12 is in a closing trend.
Referring to fig. 4, the locking bar mechanism 2 is fixed at the end of the battery pack, and is matched with the locking hook mechanism 1, and is a movement mechanism for realizing the locking process and unlocking process of the battery pack.
The lock rod mechanism 2 comprises a lock rod base 21, a lock plunger 22 and a limiting block 23.
The lock rod base 21 is rectangular, and is provided with a clamping groove matched with the lock bolt 22 and the limiting block 23.
One side of the lock plunger 22 is of a square structure with a groove, and is matched with the lock plunger base 21 to limit the freedom degrees in 4 directions; the other side of the lock bolt 22 is in a cylindrical structure and is matched with the lower end of the lock hook 12, so that the locking connection between the battery pack end and the whole vehicle end is realized.
The limiting block 23 is T-shaped.
The locking rod mechanism 2 can ensure that the influence that the lock plunger 22 and the lock hook 12 cannot be matched smoothly and correspondingly due to the deformation of the size and parts and the expansion and contraction of heat and cold in the process of butt joint and locking of the battery pack and the whole vehicle is avoided.
Referring to fig. 1 to 3, the locking determination means 3 is used for confirming and determining whether the locking process and the unlocking process have a failure and a locking state.
The lock determination means 3 locks the determination means housing 31 and the sensor probe 32 and the first circuit board provided in the lock determination means housing 31.
The sensor probe 32 is fixed on the base 11 and connected with the first circuit board.
The first circuit board is fixed on the rear panel of the base 11, the leading-out circuit is communicated with the locking control mechanism 4 to realize signal communication, and the position signal of the lock hook 12 is fed back in real time to judge whether locking and unlocking are in place or not;
The arrangement positions of the sensor probes 32 are shown in fig. 5, and the present invention uses four sensor probes 32 as an example, and the number is not limited.
The sensor probe 32 includes an unlock determination probe 321 and a lock determination probe 322.
Fig. 5 shows an unlocked state, in which the unlock determination probe 321 feeds back the unlock in-place information, and when the lock hook 12 is reset, the lock determination probe 322 is blocked, and in which the lock determination probe 322 feeds back the lock in-place information.
The circuit, the circuit board and the like are arranged in the locking judging mechanism shell 31 as a whole on the rear panel of the base 11 during the period, and the lead-out circuit is led out through the locking control mechanism 4 and is connected with the controller/sensor, so that signal intercommunication is realized, the position signal of the locking hook 12 is fed back in real time, and whether locking and unlocking are in place or not is judged.
Referring to fig. 1-6, the locking control mechanism 4 is used for controlling the locking motion state and monitoring the locking state under all vehicle conditions.
The lock control mechanism 4 includes a lock control mechanism housing 41, and a lock lever 42, a second spring, a permanent magnet, and a second circuit board provided inside the lock control mechanism housing 41.
The lock lever 42 can extend out of the front panel of the base 11 and is connected at its rear end to a second spring inside the lock control mechanism housing 41. In the second spring free state, the lock lever 42 extends out of the front panel of the base 11, and is in contact fit with the arc-shaped groove 121 of the lock hook 12 at this time, so as to limit the rotation of the lock hook 12, and ensure that the lock hook 12 is in a locking state, i.e. the connection and fixation of the battery pack end and the whole vehicle end are realized.
When the locking control mechanism 4 receives a control execution instruction sent by the controller/sensor, the electromagnet structure at the tail part of the locking rod 42 generates electromagnetism and generates electromagnetic attraction action with the permanent magnet in the locking control mechanism shell 41, the electromagnetic attraction counteracts and compresses the second spring, the locking rod 42 is retracted into the locking control mechanism shell 41, and the front end face of the locking rod 41 is lower than the front panel of the base 11. At this time, the battery pack is in contact fit with the arc-shaped groove of the lock hook 12, so that the lock hook 12 is released from limiting rotation, and the lock hook 12 is guaranteed to be in an unlocking state, namely, the battery pack is disconnected from the whole vehicle.
Example two
The embodiment of the invention provides a vehicle, which comprises a battery quick-mounting device with vehicle-end control, wherein the vehicle can finish quick power change or battery disassembly only by a common tray without depending on special power change equipment of a power change station when the vehicle changes a battery, namely, in any power change station and any occasion; and the quick-change mechanism is a clamping type quick-change mechanism, the power change speed is high, the mechanism is simple, and the locking reliability is high.
Example III
The embodiment of the invention provides a battery fast-assembling method with vehicle end control, which is realized by a battery fast-assembling device with vehicle end control, and comprises an unlocking process and a locking process;
Referring to fig. 6, the unlocking process is as follows:
When the whole car starts to quickly change electricity, the lock rod 42 retreats to release the limit rotation of the lock hook 12, the tray bracket moves downwards to drive the battery pack to move downwards, meanwhile, the lock bolt 22 fixed at the end of the battery pack moves downwards, the barb structure of the lock hook 12 receives downward force from the lock bolt 22, so that the lock hook 12 is stressed to rotate and compress the first spring 15; the lock bolt 22 moves downwards along with the battery pack, and after the lock hook 12 is separated, the battery pack end and the whole vehicle end are separated; after the lock plunger 22 is separated from the lock hook 12, the lock hook 12 receives the elastic force of the first spring 15, so that the lock hook 12 rotates and resets, and the unlocking mechanism is moved.
Referring to fig. 7, the locking process is as follows:
When the whole vehicle starts to quickly change electricity, the battery pack to be changed moves upwards, the positioning and upwards moving to a preset position, the lock plunger 22 contacts with the arc-shaped groove 121 of the lock hook 12 and pushes the lock hook 12 to rotate, and the first spring 15 is compressed; as the latch 22 continues to move upward, when the latch 22 reaches the predetermined position and contacts the damping stopper 14, at this time, the latch 22 is separated from the arc-shaped groove 121 of the latch hook 21, and the latch hook 12 is reset under the action of the first spring force 15. After the latch hook 12 is reset, the latch rod 42 extends out after receiving the execution instruction, so as to limit the rotation of the latch hook 12, keep the latch hook 12 in a locking state, and complete the movement of the locking mechanism.
In addition, after the unlocking process and the locking process are completed, 0 times or 1 time or 2 times of self-checking can be performed; and judging whether the current battery state meets the unlocking condition, wherein the self-checking time is in the millisecond level, and the quick-change time is not influenced. And detecting whether the state of the vehicle body meets the threshold requirement, when the state meets the threshold requirement, feeding back a self-checking success signal to the vehicle controller, if the state does not meet the threshold requirement, reporting a self-checking failure signal, and repeating the self-checking action until the self-checking is successful or the fault is relieved or the self-checking command is closed.
The self-test includes, but is not limited to, the following:
checking whether the state of the high-voltage circuit meets the threshold requirement;
Checking whether the state of the circuit meets the threshold requirement;
checking whether the insulating and voltage-resistant states meet the threshold requirement;
It is checked whether the temperature state meets the threshold requirement.
The self-checking is performed twice in the whole power exchanging process, and the method takes the two times as an example, and the self-checking can be performed once or not, but is protected in the rights and interests. After receiving an unlocking instruction for the whole vehicle controller for the first time, sending a self-checking instruction to a battery pack/battery management system; and after receiving in-place feedback information sent by the controller/sensor for the whole vehicle controller for the second time, sending a self-checking instruction to the battery pack/battery management system.
The first self-checking instruction is to confirm that the state of the battery pack meets the threshold requirement, and to check the risk problem of the battery pack in the power change process; the second time of sending out the self-checking instruction is to confirm whether the battery pack is connected normally or not, whether the circuit is connected normally or not, the problem of abnormal connection risk is prevented, and the power exchange process is guaranteed and confirmed.
And the controller/sensor of the end control locking mechanism executes the action of replacing the electrolytic lock, so that the battery pack is separated from the whole vehicle.
After the battery pack is separated from the whole vehicle, the battery pack to be replaced is supported and installed at the battery pack installation position, and the controller/sensor of the vehicle end control locking mechanism executes the power-exchanging locking action again, so that the locking connection of the battery pack and the whole vehicle can be realized.
The power exchanging method can be regarded as an active quick power exchanging process, can be used for quickly exchanging power without depending on a power exchanging station, can also be used for quickly exchanging power in power exchanging stations of different specifications and different manufacturers, and reasonably utilizes the power exchanging station resources.
And the battery pack storage and power supplementing device can rent a plurality of battery pack storage bins with the battery packs of different manufacturers, so that a user can change the power of the battery packs of different manufacturers, search the battery packs through software such as APP and the like, check the state of the battery packs, and the battery packs are wider in selection range and are more convenient to use.
The invention provides a battery quick-change method with vehicle-end control, which ensures that the battery quick-change process is smoothly carried out in the quick-change process.
The battery quick-change method comprises the steps of monitoring a battery replacement process, monitoring the battery replacement process in real time, judging whether a high-voltage circuit is connected normally or not, judging whether a battery replacement mechanism is operated normally or not, judging whether a locking state reaches a preset effect or not, and monitoring whether a battery pack quick-change interface is abnormal or not when the whole vehicle runs under the full working condition in real time.
The control strategy method described in this embodiment is not unique, but only provides a feasibility strategy idea, and the main idea is to send out an instruction, receive the instruction, detect a state, execute an action, feedback and execute.
Any derivatization can be performed on the basic strategy method, including adding additional auxiliary control, and additional receivers, controllers and executors or reducing partial self-checking, judging and other control strategies, and the control strategies which can be represented to be realized are all within the protection scope of the patent.
A vehicle end control method of a battery quick-change method with vehicle end control is shown in figure 8,
The battery quick-change method is a locking process, and the locking process comprises an unlocking process and a locking process.
The unlocking process is as follows:
When the unlocking process of the battery pack needs to be replaced and the vehicle end sends an unlocking instruction, the unlocking instruction is sent to the whole vehicle controller, and the whole vehicle controller sends a battery pack self-checking instruction to the battery pack/battery management system.
And after receiving the self-checking instruction, the battery pack/battery management system performs self-checking, and detects whether the current state of the battery pack such as high-voltage and low-voltage connection meets the threshold requirement.
When the threshold requirement is not met, fault codes are fed back to the whole vehicle according to the set threshold, unlocking self-checking fault values are reported, and when the unlocking self-checking fault values are released, the battery pack state self-checking is conducted again.
When the threshold requirement is met, the self-checking success instruction is fed back to the whole vehicle controller, the whole vehicle controller receives a self-checking success feedback signal sent by the battery management system, and at the moment, the whole vehicle controller judges that the current battery pack state can be unlocked.
And the vehicle controller sends an unlocking instruction to the controller/sensor of the locking mechanism module, the controller/sensor of the locking mechanism module receives the unlocking instruction and then performs unlocking action, and after the unlocking action is completed, the battery pack is separated from the vehicle.
The locking process is as follows:
When the battery pack to be replaced ascends and reaches the preset position of the battery pack, at the moment, the connection port of the high-low voltage circuit of the battery pack is connected with the connection port of the high-low voltage circuit of the whole vehicle end, namely, the circuit is communicated.
And the whole vehicle controller sends a battery pack self-checking instruction to the battery pack/battery management system, the follow-up control strategy is basically consistent with the unlocking process, the locking mechanism executes locking action, and the battery pack is connected with the whole vehicle after the locking action is finished.
The locking mechanism module is in a locking state, at the moment, a locking structure in the locking state judges whether the locking is in place or not, and a locking in-place signal is sent to the whole vehicle controller.
If the locking structure does not reach the preset position, sending a locking fault value to the whole vehicle controller, and feeding back the locking position fault value; and if the locking structure reaches the preset position, sending a locking success signal to the whole vehicle controller.
And when the vehicle controller receives the locking success signal, the mechanical locking success is judged, and when the interlocking signal is fed back to the vehicle controller, the high-low voltage circuit is judged to be normally connected, at the moment, the vehicle controller sends a power-changing success instruction to the vehicle end, and the vehicle end displays that the power-changing success power-changing process is finished.
After the power is replaced, a controller/sensor of the locking mechanism module monitors whether the locking mechanism is at a normal position and a threshold value of a state in real time, and the locking mechanism is prevented from being damaged by factors such as collision and collision of the whole vehicle, so that the problem of mechanical connection of the battery pack is solved.
In addition, the interlocking signals are monitored in real time, so that the problem of circuit connection of the battery pack is prevented, and the whole vehicle battery pack is subjected to double monitoring protection of machinery and circuits to avoid risks.
The invention provides a battery quick-change method with vehicle-end control, namely, the battery pack with vehicle-end control can be quickly replaced by matching with special equipment to carry out non-vehicle-end control.
The quick change method and principle of the non-vehicle-end control process are basically consistent with those of the vehicle-end control.
When the battery pack needs to be replaced, the whole vehicle firstly enters a power conversion mode, and the basic principle and method of entering the power conversion mode are not used as protection. The tray type equipment is used for contacting the battery pack to offset the gravity of the battery pack, then the equipment is used for starting an electromagnetic function, and the locking rod is attracted to move to limit the position of the locking hook due to the electromagnet principle, so that the locking and unlocking processes are realized.
In summary, the invention can complete the task of quick power exchange or battery disassembly only by using a common tray after the gravity of the battery pack is counteracted in any power exchange station and any occasion without depending on the special power exchange equipment of the power exchange station, thereby realizing the quick power exchange process at any time and any place and quickly maintaining the fault battery pack.
The quick-change method is not unique, but provides a quick-change feasibility method, and a common tray can be a tray, a lifting bracket, a trolley, a mobile battery-changing vehicle/box, a battery-changing station, a battery-changing device and the like of various types and manufacturers, and can be used as the battery-changing method in the scheme as long as a battery pack is provided or can be stored.
The application discloses a battery pack quick-change method, which is characterized in that a vehicle end unlocking is realized by matching a special auxiliary tool with a vehicle end, and the application aims to better describe the battery quick-change method.
When the battery pack needs to be replaced, the tray or lifting type movable support, the trolley, the movable trolley/box and other equipment support and counteract the gravity of the battery pack.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (7)
1. The battery quick-change device with the vehicle end control function is characterized by comprising a lock hook mechanism (1), a lock rod mechanism (2), a locking judgment mechanism (3) and a locking control mechanism (4);
The lock hook mechanism (1) is fixed at the whole vehicle end and comprises a base (11), a lock hook (12), a connecting rod (13), a damping limiting block (14), a first spring (15) and a fixed shaft (16) which are arranged in the shell; the connecting rod (13) is fixed on the base (11); two ends of the connecting rod (13) are connected with the upper ends of the two lock hooks (12) through a fixed shaft (16); both ends of the first spring (15) are fixed with the inner side of the upper end of the lock hook (12); the lock hook (12) freely rotates by taking the fixed shaft (16) as a central shaft; the lower end of the connecting rod (13) is provided with a damping limiting block (14);
The lock rod mechanism (2) is fixed at the battery pack end and comprises a lock rod base (21), a lock bolt (22) and a limiting block (23); the lock bolt (22) is arranged in the lock rod base (21); the limiting block (23) is arranged at one end of the lock plunger (22) and is matched with the groove of the lock plunger base (21) to limit the lock plunger (22);
The locking judging mechanism (3) comprises a locking judging mechanism shell (31), and a sensor probe (32) and a first circuit board which are arranged in the locking judging mechanism shell (31); the sensor probe (32) is fixed on the base (11) and is connected with the first circuit board; the first circuit board is fixed on the rear panel of the base (11), the leading-out circuit is communicated with the locking control mechanism (4) to realize signal communication, and the position signal of the lock hook (12) is fed back in real time to judge whether locking and unlocking are in place or not;
the locking control mechanism (4) comprises a locking control mechanism shell (41), and a lock rod (42), a second spring, a permanent magnet and a second circuit board which are arranged in the locking control mechanism shell (41); the locking control mechanism (4) is arranged on the rear panel of the base (11); the first circuit board is connected with the second circuit board; the second circuit board is connected with the controller and receives control execution instructions sent by the controller and the sensor probe (32); the tail part of the lock rod (42) is provided with an electromagnet structure, electromagnetic energy generated by the electromagnet structure can generate electromagnetic attraction action with the permanent magnet, and the electromagnetic attraction force can counteract and compress the second spring;
One side of the lock plunger (22) is of a square structure with a groove, and is matched with the lock rod base (21) to limit the degree of freedom in 4 directions; the other side of the lock plunger (22) is of a cylindrical structure and is matched with the lower end of the lock hook (12) to realize the locking connection between the battery pack end and the whole vehicle end;
The sensor probe (32) comprises an unlocking judging probe (321) and a locking judging probe (322); the unlocking judging probe (321) feeds back unlocking in-place information in the unlocking state, and the locking judging probe (322) feeds back locking in-place information when the locking judging probe (322) is shielded after the locking hook (12) is reset;
The lower end of the lock hook (12) is provided with an arc-shaped groove (121); the lower end of the arc-shaped groove (121) is provided with a guide structure (111).
2. The battery quick-change device with vehicle end control according to claim 1, wherein the connecting rod (13) is in an 'i' -shape.
3. The battery quick-change device with vehicle end control according to claim 1, wherein the limiting block (23) is in a T shape.
4. The battery quick-change device with vehicle end control according to claim 1, wherein when the locking control mechanism (4) receives a control execution instruction sent by the controller or the sensor probe (32), an electromagnet structure at the tail part of the locking rod (42) generates electromagnetism and generates electromagnetic attraction action with a permanent magnet in the locking control mechanism shell (41), the electromagnetic attraction force counteracts and compresses the second spring, the locking rod (42) is retracted into the locking control mechanism shell (41), and the front end surface of the locking rod (42) is lower than the front panel of the base (11); at the moment, the battery pack end and the whole vehicle end are disconnected by being in contact and matched with the arc-shaped groove (121) of the lock hook (12) in a releasing mode, the lock hook (12) is released from limiting rotation, and the lock hook (12) is guaranteed to be in an unlocking state.
5. A battery quick-change method with vehicle end control, which is applied to the battery quick-change device with vehicle end control according to any one of claims 1-4, and is characterized by comprising an unlocking process and a locking process;
The unlocking process is as follows:
When the whole car starts to quickly change electricity, the lock rod (42) retreats to remove the limit rotation of the lock hook (12), the tray bracket moves downwards to drive the battery pack to move downwards, meanwhile, the lock bolt (22) fixed at the end of the battery pack moves downwards, the barb structure of the lock hook (12) receives downward force from the lock bolt (22), so that the lock hook (12) is stressed to rotate and compress the first spring (15); the lock bolt (22) moves downwards along with the battery pack, and after the lock hook (12) is separated, the battery pack end and the whole vehicle end are separated;
The locking process is as follows:
When the whole vehicle starts to quickly change electricity, the battery pack to be changed moves upwards, the battery pack to be changed is positioned and moved upwards to a preset position, the lock bolt (22) is contacted with the arc-shaped groove (121) of the lock hook (12), the lock hook (12) is pushed to rotate, and the first spring (15) is compressed; and as the lock plunger (22) continues to move upwards, when the lock plunger (22) reaches a preset position and is in contact with the damping limiting block (14), at the moment, the lock plunger (22) is separated from the arc-shaped groove (121) of the lock hook (12), and the lock hook (12) is reset under the action of the first spring force (15).
6. The method for quickly changing a battery with vehicle end control according to claim 5, wherein after the unlocking process and the locking process are completed, 0 times or 1 time or 2 times of self-checking is performed;
The specific process of the self-test is as follows:
checking whether the state of the high-voltage circuit meets the threshold requirement;
Checking whether the state of the circuit meets the threshold requirement;
checking whether the insulating and voltage-resistant states meet the threshold requirement;
It is checked whether the temperature state meets the threshold requirement.
7. A vehicle comprising a battery quick change device having vehicle end control as claimed in any one of claims 1 to 4.
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| 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 |
| CN116101519B (en) * | 2023-01-09 | 2023-07-25 | 中国科学院空间应用工程与技术中心 | Locking device for rotary matching linear displacement motion and space load |
| CN117080658B (en) * | 2023-10-16 | 2024-02-06 | 河南百川汽车部件有限公司 | Quick power-changing locking mechanism of electric automobile and control system |
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