CN115431738A - Electromagnetic control quick-change power battery assembly, electric vehicle and quick-change method - Google Patents
Electromagnetic control quick-change power battery assembly, electric vehicle and quick-change method Download PDFInfo
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- CN115431738A CN115431738A CN202211388903.2A CN202211388903A CN115431738A CN 115431738 A CN115431738 A CN 115431738A CN 202211388903 A CN202211388903 A CN 202211388903A CN 115431738 A CN115431738 A CN 115431738A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000005672 electromagnetic field Effects 0.000 claims description 32
- 230000000875 corresponding effect Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 3
- 239000000725 suspension Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
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- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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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
-
- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/04—Cutting off the power supply under fault conditions
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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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/66—Arrangements of batteries
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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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- 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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
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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
- B60K2001/0455—Removal or replacement of the energy storages
- B60K2001/0472—Removal or replacement of the energy storages from below
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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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
Abstract
The invention relates to the technical field of automobiles, in particular to an electromagnetic control quick-change power battery assembly, an electric vehicle and a quick-change method. Comprises a power battery and an electromagnetic controller; the power battery and the electromagnetic controller are mounted and dismounted through the attraction state and the disengagement state. The electromagnetic controller comprises a fixed suction disc and an electromagnetic coil; and the electromagnetic coil is electrically connected with the VCU of the vehicle control unit. The power battery comprises a battery upper box body, a rear electromagnet, a front electromagnet, a lower box body side frame, a lower box body end plate and a power battery body; the power battery body is fixed in the power battery box body; the rear electromagnet and the front electromagnet are arranged on a cross beam in the power battery box body; the rear electromagnet and the front electromagnet are electrically connected with the battery management system BMS. The invention can realize the quick replacement of the power battery, thereby saving the time; and in the first time of thermal runaway of the power battery, the harmful power battery can be separated from the vehicle body, so that the safety of the power battery is ensured.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to an electromagnetic control quick-change power battery assembly, an electric vehicle and a quick-change method.
Background
Because the living standard of people is increasing day by day, automobiles become necessary articles for every family, however, with the increase of the number of gasoline vehicles, the pollution of pollutants such as harmful gases generated by the gasoline vehicles to the living environment of people is hard to bear, so that people must find new energy sources capable of replacing gasoline to a certain extent to relieve the environmental pressure of people.
Based on such current situation, new energy automobiles using power batteries become a new favorite for people with their obvious advantages. Firstly, compared with gasoline vehicles, the new energy vehicle using the power battery can save more cost; and secondly, because the battery does not have oxidation reaction with oxygen, no redundant waste gas is discharged in the charging and discharging process, and the environmental pollution is effectively prevented.
The power battery is used as a key core part of the new energy automobile, and the structure safety and the heat management performance are very important. The current mainstream battery assembly scheme is a standard module or a CTP configuration battery assembly, the structures of the battery assemblies of the two schemes are complex, and the problems of low battery replacement efficiency and complex battery replacement structure exist.
Disclosure of Invention
The invention provides an electromagnetic control quick-change power battery assembly, an electric vehicle and a quick-change method.
The technical scheme of the invention is explained by combining the drawings as follows:
an electromagnetic control quick-change power battery assembly comprises a power battery 2 and an electromagnetic controller 5; the electromagnetic controller 5 is fixed at the bottom of the vehicle body 1; the power battery 2 and the electromagnetic controller 5 are installed and disassembled through an attraction state and a disengagement state.
Further, the electromagnetic controller 5 includes a fixed suction plate 501 and an electromagnetic coil 502; the fixed suction disc 501 is fixed at the bottom of the vehicle body 1; the electromagnetic coil 502 is disposed within the fixed suction plate 501; the electromagnetic coil 502 is electrically connected with the vehicle control unit VCU.
Further, the electromagnetic coil 502 generates an electromagnetic field by passing a current through the interior; the electromagnetic coil 502 breaks the electromagnetic field by internally breaking the current.
Further, the fixed suction disc 501 is located above the center of mass of the power battery 2.
Further, the power battery 2 comprises a battery upper box 201, a rear electromagnet 202, a front electromagnet 203, a lower box side frame 204, a lower box end plate 205 and a power battery body; the battery upper box body 201, the lower box body side frame 204 and the lower box body end plate 205 form a power battery box body; the power battery body is fixed in the power battery box body; the rear electromagnet 202 and the front electromagnet 203 are arranged on the inner cross beam of the power battery box; the rear electromagnet 202 and the front electromagnet 203 are electrically connected with the battery management system BMS.
Further, a current flows into the rear electromagnet 202, and an electromagnetic field is generated; the current is cut off inside the rear electromagnet 202, and the electromagnetic field is cut off; current flows into the front electromagnet 203 to generate an electromagnetic field; the front electromagnet 203 internally cuts off the current and breaks off the electromagnetic field.
An electric vehicle includes a vehicle body and an electromagnetically controlled quick-change power battery assembly.
A quick-change method of an electromagnetic control quick-change power battery assembly comprises the following steps:
step one, a battery management system BMS collects a function request of a power battery 2;
judging by the battery management system BMS according to the collected function requests, and judging the working mode of the battery management system BMS; the working modes comprise: a battery replacement mode, a thermal runaway mode and a no-working mode;
step three, the battery management system BMS executes corresponding actions according to the judged working mode;
step four, feeding back signals to the function request collected in the step one, and if the function request meets the conditions, determining that the function request reaches the standard; if the standard is not met, repeating the third step; otherwise, the control is exited.
The concrete method of the third step is as follows:
thermal runaway mode: receiving a thermal runaway signal generated by the power battery 2, needing to detach the power battery 2 from the vehicle body 1, synchronously cutting off a power supply by the rear electromagnet 202, the front electromagnet 203 and the electromagnetic controller 5, and cutting off current, wherein the rear electromagnet 202 and the front electromagnet 203 do not work until the power battery 2 is detached from the vehicle body;
a battery replacement mode: receiving a power changing signal of the power battery 2, and installing a new power battery 2 after the power battery 2 needs to be detached from the vehicle body 1; the electromagnetic controller 5 firstly cuts off the power supply and does not have the electromagnetic field, the rear electromagnet 202 and the front electromagnet 203 cut off the power supply and does not have the electromagnetic field after 2-3S intervals until the power battery 2 is separated from the vehicle body 1; after waiting for the new vehicle body 1 to be changed to the corresponding position, the electromagnetic controller 5 firstly switches on the power supply to generate an electromagnetic field, and the rear electromagnet 202 and the front electromagnet 203 switch on the power supply to generate the electromagnetic field after the interval of 2-3S until the power battery 2 is connected with the vehicle body 1;
no working mode: and receiving a signal which does not need to work, and keeping all structures in the original state without change.
The sequence of the working modes is judged as follows: the thermal runaway mode is larger than the battery replacement mode and the no-working mode.
The invention has the beneficial effects that:
1) According to the electromagnetic control quick-change power battery assembly, the electric vehicle and the quick-change method, the attraction and the repulsion of the power battery and the vehicle body are realized by controlling the connection and the disconnection of the power supplies of the electromagnetic controller, the front electromagnet and the rear electromagnet, so that the quick installation and the replacement of the power battery are realized, and the time is saved;
2) The invention can separate the harmful power battery from the vehicle body in the first time when the thermal runaway of the power battery occurs, thereby effectively ensuring the property safety of passengers, effectively delaying the thermal runaway of the battery and ensuring the safety of the power battery;
3) According to the invention, the power battery is connected with the vehicle body without other mechanical structures, so that the light weight design of the assembly is realized, and the research and development cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of the present invention mounted on an electric vehicle;
FIG. 2 is a schematic diagram of a power cell according to the present invention;
FIG. 3 is a schematic diagram of a solenoid controller mounted on an electric vehicle;
fig. 4 is a schematic structural diagram of an electromagnetic controller in the present invention.
In the figure:
1. a vehicle body;
2. a power cell;
201. the battery is arranged on the box body; 202. a rear electromagnet; 203. a front-mounted electromagnet; 204. a lower case side frame;
3. a front wheel;
4. a front suspension;
5. an electromagnetic controller;
501. a fixed suction plate; 502. an electromagnetic coil;
6. a rear suspension;
7. and a rear wheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Example one
An electromagnetic control quick-change power battery assembly comprises a power battery 2 and an electromagnetic controller 5; the electromagnetic controller 5 is fixed at the bottom of the vehicle body 1; the power battery 2 and the electromagnetic controller 5 are mounted and dismounted through a suction state and a disengagement state.
The electromagnetic controller 5 comprises a fixed suction tray 501 and an electromagnetic coil 502; the fixed suction disc 501 is fixed at the bottom of the vehicle body 1; the electromagnetic coil 502 is arranged above the inner side of the fixed suction disc 501; the electromagnetic coil 502 is electrically connected with the vehicle control unit VCU.
The fixed suction and tray 501 is positioned above the mass center of the power battery 2, so that the power battery 2 and the fixed suction and tray 501 can be firmly connected.
The power battery 2 comprises a battery upper box body 201, a rear electromagnet 202, a front electromagnet 203, a lower box body side frame 204, a lower box body end plate 205 and a power battery body; the battery upper box body 201, the lower box body side frame 204 and the lower box body end plate 205 form a power battery box body; the power battery body is fixed in the power battery box body; the rear electromagnet 202 and the front electromagnet 203 are fixed on an inner lower box body end plate 205 of the power battery box body; the rear electromagnet 202 and the front electromagnet 203 are electrically connected with the battery management system BMS.
When the power battery 2 needs to be installed on the vehicle body 1, the VCU of the vehicle control unit controls the electromagnetic controller 5 to be electrified to generate an electromagnetic field; the battery management system BMS supplies current to the front electromagnet 203 and the rear electromagnet 202 to generate an electromagnetic field attracting the electromagnetic controller 5, so that the power battery 2 and the electromagnetic controller 5 generate an attraction state to mount the power battery 2.
When the power battery 2 needs to be disassembled on the vehicle body 1, the VCU of the vehicle control unit controls the electromagnetic controller 5 to cut off current; the battery management system BMS disconnects the current to the front electromagnet 203 and the rear electromagnet 202, thereby bringing the power battery 2 into a disengaged state from the solenoid controller 5 to achieve the detachment of the power battery 2.
The power battery 2 comprises a battery upper box body 201, a rear electromagnet 202, a front electromagnet 203, a lower box body side frame 204, a lower box body end plate 205 and a power battery body; the battery upper box body 201, the lower box body side frame 204 and the lower box body end plate 205 form a power battery box body; the power battery body is fixed on a cross beam in the power battery box body; the rear electromagnet 202 and the front electromagnet 203 are arranged in the power battery box body; the rear electromagnet 202 and the front electromagnet 203 are electrically connected with the battery management system BMS.
The number of the front electromagnets 203 is two, and electromagnets capable of controlling to generate electromagnetic fields are adopted; the bottom of the electromagnet is in hard connection with a front cross beam in the power battery box body, so that the connection performance of the whole vehicle is improved. The front cross beam and the rear cross beam are symmetrically distributed relative to the mass center of the battery pack. The mass center position of the battery pack is determined according to the position of the power battery body.
Current flows into the front electromagnet 203 to generate an electromagnetic field; the current is switched off inside the front electromagnet 203 and the electromagnetic field disappears.
The number of the rear electromagnets 202 is two, and electromagnets capable of generating electromagnetic fields in a controllable mode are adopted; the bottom of the electromagnet is in hard connection with the rear cross beam in the power battery box body, so that the connection performance of the whole vehicle is improved. The front cross beam and the rear cross beam are symmetrically distributed relative to the mass center of the battery pack. The mass center position of the battery pack is determined according to the position of the power battery body.
Current flows into the rear electromagnet 202 to generate an electromagnetic field; the current is switched off inside the rear electromagnet 202 and the electromagnetic field disappears.
In addition, if the calculated centroid of the battery pack is located at the geometric center of the power battery box body, the front electromagnet 203 and the rear electromagnet 202 are of the same structure, and if the centroid of the battery pack is not located at the geometric center of the power battery box body, the electromagnet close to the geometric center is small, and the electromagnet far away from the geometric center is large.
Example two
An electric vehicle comprises a vehicle body and an electromagnetic control quick-change power battery assembly; the electromagnetic control quick-change power battery assembly is arranged on a vehicle body; the vehicle body comprises a vehicle body 1, a front wheel 3, a front suspension 4, a rear suspension 6 and a rear wheel 7; the front wheel 3 is connected with a front suspension 4 through a shaft; the rear wheel 7 is connected with the rear suspension 6 through a shaft; the electromagnetic control quick-change power battery assembly comprises a power battery 2 and an electromagnetic controller 5; the electromagnetic controller 5 is fixed at the bottom of the vehicle body 1; the power battery 2 and the electromagnetic controller 5 are mounted and dismounted in a sucking and releasing state, and the power battery 2 and the vehicle body 1 can be connected and detached without redundant mechanical structures, so that the light-weight design of an assembly is realized, and the research and development cost is reduced; the electric vehicle provided with the electromagnetic control quick-change power battery assembly can realize quick installation and replacement of the power battery 2, and can separate the harmful power battery 2 from the vehicle body 1 in the first time when the power battery 2 is out of control due to heat, so that the property safety of passengers is effectively ensured, and the battery thermal control is effectively delayed.
EXAMPLE III
A quick-change method of an electromagnetic control quick-change power battery assembly comprises the following steps:
step one, a battery management system BMS collects a function request of a power battery 2;
the function request includes: thermal runaway, battery replacement and no need of work.
Judging by the battery management system BMS according to the collected function requests, and judging the working mode of the battery management system BMS;
the working modes comprise: a battery replacement mode, a thermal runaway mode and a no-working mode;
step three, the battery management system BMS executes corresponding actions according to the judged working mode;
the specific method comprises the following steps:
thermal runaway mode: receiving a thermal runaway signal generated by the power battery 2, needing to detach the power battery 2 from the vehicle body 1, synchronously cutting off a power supply by the rear electromagnet 202, the front electromagnet 203 and the electromagnetic controller 5, cutting off current, and stopping the rear electromagnet 202 and the front electromagnet 203 until the power battery 2 is detached from the vehicle body;
a battery replacement mode: receiving a power changing signal of the power battery 2, and installing a new power battery 2 after the power battery 2 is required to be detached from the vehicle body 1; the electromagnetic controller 5 cuts off the power supply firstly, the electromagnetic controller 5 does not have an electromagnetic field at this time, the power supply of the rear electromagnet 202 and the front electromagnet 203 is cut off after the interval of 2-3S, the rear electromagnet 202 and the front electromagnet 203 also do not have an electromagnetic field at this time, and the power battery 2 is separated from the vehicle body 1; after the new power battery 2 is changed to a corresponding position, the electromagnetic controller 5 firstly switches on the power supply to generate an electromagnetic field, and the rear electromagnet 202 and the front electromagnet 203 switch on the power supply at intervals of 2-3S to generate an electromagnetic field until the power battery 2 is connected with the vehicle body 1;
no working mode: and receiving a signal which does not need to work, and keeping all structures in the original state without change.
The sequence of the working modes is judged as follows: the thermal runaway mode is larger than the battery replacement mode and the no-working mode.
Step four, performing signal feedback on the function request acquired in the step one, and if the problem is solved, determining that the function request reaches the standard; if the standard is not met, repeating the third step; otherwise, the control is exited.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. 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, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. An electromagnetic control quick-change power battery assembly is characterized by comprising a power battery (2) and an electromagnetic controller (5); the electromagnetic controller (5) is fixed at the bottom of the vehicle body (1); the power battery (2) and the electromagnetic controller (5) are installed and disassembled through an attraction state and a disengagement state.
2. A solenoid-operated quick-change power cell assembly according to claim 1, characterised in that said solenoid-operated controller (5) comprises a fixed suction disc (501) and a solenoid coil (502); the fixed suction disc (501) is fixed at the bottom of the vehicle body (1); the electromagnetic coil (502) is arranged in the fixed suction disc (501); and the electromagnetic coil (502) is electrically connected with the VCU of the vehicle control unit.
3. The electromagnetically controlled quick-change power battery assembly as claimed in claim 2, wherein the electromagnetic coil (502) is internally energized to generate an electromagnetic field; the electromagnetic coil (502) breaks the electromagnetic field by internally breaking the current.
4. An electromagnetic control quick-change power battery assembly as claimed in claim 2, characterized in that the fixed suction disc (501) is located above the center of mass of the power battery (2).
5. The electromagnetic control quick-change power battery assembly as claimed in claim 1, wherein the power battery (2) comprises a battery upper box (201), a rear electromagnet (202), a front electromagnet (203), a lower box side frame (204), a lower box end plate (205) and a power battery body; the battery upper box body (201), the lower box body side frame (204) and the lower box body end plate (205) form a power battery box body; the power battery body is fixed on a cross beam in the power battery box body; the rear electromagnet (202) and the front electromagnet (203) are arranged in the power battery box body; the rear electromagnet (202) and the front electromagnet (203) are electrically connected with the battery management system BMS.
6. The electromagnetically controlled quick-change power battery assembly as claimed in claim 5, wherein an electric current flows into the rear electromagnet (202) to generate an electromagnetic field; the rear electromagnet (202) is internally disconnected with current and electromagnetic field; current flows into the front electromagnet (203) to generate an electromagnetic field; the front electromagnet (203) is internally disconnected with current and electromagnetic field.
7. An electric vehicle comprising a vehicle body and a solenoid-operated quick-change power cell assembly as claimed in any one of claims 1 to 6.
8. A quick-change method for an electromagnetic control quick-change power battery assembly is characterized by comprising the following steps:
step one, a battery management system BMS collects a function request of a power battery (2);
judging by the battery management system BMS according to the collected function requests, and judging the working mode of the battery management system BMS; the working modes comprise: a battery replacement mode, a thermal runaway mode and a no-working mode;
step three, the battery management system BMS executes corresponding actions according to the judged working mode;
step four, feeding back signals to the function request collected in the step one, and if the function request meets the conditions, determining that the function request reaches the standard; if the standard is not met, repeating the third step; otherwise, the control is exited.
9. The method for quickly replacing the electromagnetic control quick-change power battery assembly according to claim 8, wherein the specific method in the third step is as follows:
thermal runaway mode: receiving a thermal runaway signal generated by a power battery (2), detaching the power battery (2) from a vehicle body (1), synchronously cutting off a power supply by a rear electromagnet (202), a front electromagnet (203) and an electromagnetic controller (5), and cutting off current, wherein the rear electromagnet (202) and the front electromagnet (203) do not work until the power battery (2) is separated from the vehicle body;
a battery replacement mode: receiving a power changing signal of the power battery (2), and mounting a new power battery (2) after the power battery (2) is required to be detached from the vehicle body (1); the electromagnetic controller (5) cuts off the power supply and the non-electromagnetic field at first, the rear electromagnet (202) and the front electromagnet (203) cut off the power supply and the non-electromagnetic field at intervals of 2 to 3S until the power battery (2) is separated from the vehicle body (1); after the new vehicle body (1) is changed to a corresponding position, the electromagnetic controller (5) firstly switches on a power supply to generate an electromagnetic field, and the rear electromagnet (202) and the front electromagnet (203) switch on the power supply to generate the electromagnetic field after 2-3S intervals until the power battery (2) is connected with the vehicle body (1);
no working mode: and receiving a signal which does not need to work, and keeping all structures in the original state without change.
10. The quick-change method for the electromagnetically-controlled quick-change power battery assembly according to claim 9, wherein the operating mode is determined according to the following sequence: the thermal runaway mode is larger than the battery replacement mode and the no-working mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211388903.2A CN115431738A (en) | 2022-11-08 | 2022-11-08 | Electromagnetic control quick-change power battery assembly, electric vehicle and quick-change method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211388903.2A CN115431738A (en) | 2022-11-08 | 2022-11-08 | Electromagnetic control quick-change power battery assembly, electric vehicle and quick-change method |
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| CN115431738A true CN115431738A (en) | 2022-12-06 |
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|---|---|---|---|
| CN202211388903.2A Pending CN115431738A (en) | 2022-11-08 | 2022-11-08 | Electromagnetic control quick-change power battery assembly, electric vehicle and quick-change method |
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| Country | Link |
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| CN (1) | CN115431738A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140287870A1 (en) * | 2013-03-21 | 2014-09-25 | Fuji Jukogyo Kabushiki Kaisha | Hybrid system of engine and motor generator |
| CN109878315A (en) * | 2017-12-06 | 2019-06-14 | 蔚来汽车有限公司 | Vehicle body components, battery pack and the vehicle for being equipped with battery |
| CN210245569U (en) * | 2019-07-02 | 2020-04-03 | 威睿电动汽车技术(宁波)有限公司 | Battery module assembly and vehicle |
| CN213262020U (en) * | 2020-07-14 | 2021-05-25 | 北京汽车股份有限公司 | Power battery quick-change system and electric automobile |
| CN113363645A (en) * | 2021-05-18 | 2021-09-07 | 中国第一汽车股份有限公司 | Quick-change power battery assembly capable of delaying thermal diffusion and electric vehicle |
-
2022
- 2022-11-08 CN CN202211388903.2A patent/CN115431738A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140287870A1 (en) * | 2013-03-21 | 2014-09-25 | Fuji Jukogyo Kabushiki Kaisha | Hybrid system of engine and motor generator |
| CN109878315A (en) * | 2017-12-06 | 2019-06-14 | 蔚来汽车有限公司 | Vehicle body components, battery pack and the vehicle for being equipped with battery |
| CN210245569U (en) * | 2019-07-02 | 2020-04-03 | 威睿电动汽车技术(宁波)有限公司 | Battery module assembly and vehicle |
| CN213262020U (en) * | 2020-07-14 | 2021-05-25 | 北京汽车股份有限公司 | Power battery quick-change system and electric automobile |
| CN113363645A (en) * | 2021-05-18 | 2021-09-07 | 中国第一汽车股份有限公司 | Quick-change power battery assembly capable of delaying thermal diffusion and electric vehicle |
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Application publication date: 20221206 |
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| RJ01 | Rejection of invention patent application after publication |