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CN-122009099-A - Quick replacement battery system of electric motor car

CN122009099ACN 122009099 ACN122009099 ACN 122009099ACN-122009099-A

Abstract

The invention discloses a quick-change battery system of an electric vehicle, which comprises a quick-change battery box, wherein an openable box door is arranged in front of the quick-change battery box, a battery cabin is arranged in the quick-change battery box, the bottom of the battery cabin is provided with a horizontal sliding table through a sliding rail unit, the horizontal sliding table slides forwards out of the quick-change battery box under the guidance of the sliding rail unit in a state that the box door is opened, a battery mounting platform is fixedly arranged on the horizontal sliding table, a transverse temporary supporting leg accommodating groove is arranged at the bottom of the horizontal sliding table, temporary supporting legs are transversely arranged in the temporary supporting leg accommodating groove, the length of each temporary supporting leg is adjustable, one end of each temporary supporting leg is hinged to one end in the temporary supporting leg accommodating groove through a damping hinge piece, the other end of each temporary supporting leg is connected with the other end of the supporting leg accommodating groove through a magnetic attraction piece, and safety and reliability are enhanced while the electric conversion efficiency is improved.

Inventors

  • ZHANG YULONG
  • JIN BO
  • YAO HAITAO
  • LI MINGYANG

Assignees

  • 江苏嗯哇科技有限公司

Dates

Publication Date
20260512
Application Date
20260306

Claims (9)

  1. 1. The quick-change battery system of the electric vehicle is characterized by comprising a quick-change battery box (39), wherein an openable box door (46) is arranged in front of the quick-change battery box (39), a battery compartment (38) is arranged in the quick-change battery box (39), a horizontal sliding table (44) is arranged at the bottom of the battery compartment (8) through a sliding rail unit (43), the horizontal sliding table (44) slides out of the quick-change battery box (39) forwards from the inside of the battery compartment (38) under the guidance of the sliding rail unit (43) in the state that the box door (46) is opened, and a battery mounting platform (1) is fixedly arranged on the horizontal sliding table (44); The bottom of the horizontal sliding table (44) is provided with a transverse temporary supporting leg accommodating groove (36), a temporary supporting leg (37) is transversely arranged in the temporary supporting leg accommodating groove (36), and the length of the temporary supporting leg (37) can be adjusted; One end of each temporary supporting leg (37) is hinged to one end in the corresponding temporary supporting leg accommodating groove (36) through a damping hinge piece (90), the other end of each temporary supporting leg (37) is connected with the other end of the corresponding supporting leg accommodating groove (36) through magnetic attraction of the corresponding magnetic attraction piece, the temporary supporting legs (37) slide forwards out of the corresponding quick-change battery box (39) from the battery compartment (38) along with the horizontal sliding table (44) under the guiding of the sliding rail unit (43), and the temporary supporting legs (37) can swing downwards to vertically downwards through the corresponding manual damping hinge piece (90) and are supported with the ground after the length of each temporary supporting leg is adjusted.
  2. 2. The quick battery replacement system for the electric vehicle according to claim 1, wherein a lifting adjusting column (42) is fixedly arranged at the rear end in the battery compartment (38), a transverse cantilever (41) is vertically connected to the upper end of the lifting adjusting column (42), a pressing unit (40) is arranged at the tail end of the transverse cantilever (41), and the pressing unit (40) is arranged above the battery mounting platform (1).
  3. 3. The quick change battery system for an electric vehicle according to claim 2, further comprising a door lock unit (45) capable of controlling locking and unlocking of the door (46).
  4. 4. The quick battery replacement system for the electric vehicle is characterized in that four positioning platforms (3) are fixedly arranged around a horizontal sliding table (44), the four positioning platforms (3) are respectively arranged on the lower sides of four sides of a battery mounting platform (1), horizontal grooves (2) are formed in the positioning platforms (3), a turnover plate (4) is arranged in each horizontal groove (2) in a lying mode, bayonets (5) are hollowed out in the edges of the battery mounting platform (1) on the upper side of the position where each positioning platform (3) is located, the inner outline of each bayonet (5) coincides with the inner outline of one end, close to the battery mounting platform (1), of the horizontal groove (2), of the horizontal turnover plate (4), and when the horizontal turnover plate (4) swings to be converted into a vertical state, the turnover plate (4) is clamped in each bayonet (5).
  5. 5. The electric vehicle quick replacement battery system according to claim 4 is characterized in that a torque deformation sleeve (13) is transversely arranged in each horizontal groove (2), a torque deformation strain gauge (20) is arranged outside the torque deformation sleeve (13) along the length direction, the torque deformation gauge (20) can detect the torque borne by the torque deformation sleeve (13), one end of the torque deformation sleeve (13) is coaxially and fixedly connected with a fixing sleeve (21), the fixing sleeve (21) is fixed with a positioning platform (3) through a spline or an embedded mode, the other end of the torque deformation sleeve (13) is in rotary fit with a bearing hole in the positioning platform (3) through an a bearing (17), one end of the turnover plate (4) is transversely penetrated and provided with a torque deformation sleeve penetrating hole (15), the torque deformation sleeve (13) transversely rotates and penetrates through the torque deformation sleeve penetrating hole (15), and inner sides of two ends of the torque deformation sleeve penetrating hole (15) are respectively in rotary fit with the outer wall of the torque deformation sleeve (13) through a third bearing (18) and a fourth bearing (19).
  6. 6. The quick battery replacement system for the electric vehicle according to claim 5, wherein an a-bolt channel (10) and a b-bolt channel (11) are arranged on one side of the turnover plate (4), the extending directions of the a-bolt channel (10) and the b-bolt channel (11) are parallel to the torque deformation sleeve (13), and the a-bolt channel (10) is farther away from the torque deformation sleeve (13) than the b-bolt channel (11), and an a-bolt (6) and a b-bolt (7) are respectively arranged in the a-bolt channel (10) and the b-bolt channel (11) in a guiding sliding manner along the length direction; The floating arm type hydraulic lifting device comprises a turning plate (4), wherein a floating arm floating channel (14) perpendicular to a torque deformation sleeve (13) is arranged in the turning plate (4), the bottom ends of an a spring bolt channel (10) and a b spring bolt channel (11) are respectively and vertically communicated with two ends of the floating arm floating channel (14), a floating arm (12) is arranged in the floating arm floating channel (14) along the length direction, two ends of the floating arm (12) are respectively and vertically fixedly connected with one ends of the a spring bolt (6) and the b spring bolt (7), the width of the floating arm floating channel (14) is obviously larger than that of the floating arm (12), so that the floating arm (12) can float in the floating arm floating channel (14) along the width direction, a spring hole (9) parallel to the torque deformation sleeve (13) is formed in the inside of the turning plate (4), the spring hole (9) is vertically communicated with one side, far away from the a spring bolt channel (10) and one side, far away from the b spring bolt channel (11), of the floating arm (12) is vertically fixedly connected with one end of the spring (8), and the thrust in the vertical direction is applied to the floating arm (12), so that the floating arm (12) is enabled to float in the direction far away from one side, far away from the floating arm (8). In a state that the floating arm (12) is in parallel contact with one side of the floating arm floating channel (14) far away from the spring (8), the outer ends of the a lock tongue (6) and the b lock tongue (7) extend out of the a lock tongue channel (10) and the b lock tongue channel (11); In the state that the floating arm (12) is in parallel contact with one side of the floating arm floating channel (14) close to the spring (8), the outer ends of the a lock tongue (6) and the b lock tongue (7) just completely retract into the a lock tongue channel (10) and the b lock tongue channel (11).
  7. 7. The quick battery replacement system for the electric vehicle according to claim 6, wherein the outer ends of the a lock tongue (6) and the b lock tongue (7) are just completely retracted into the a lock tongue channel (10) and the b lock tongue channel (11) under the compression of the inner side wall surface of the horizontal groove (2) in the state that the turnover plate (4) is horizontally laid in the horizontal groove (2); when the lying turnover plate (4) swings to be converted into a vertical state, the outer ends of the a lock tongue (6) and the b lock tongue (7) are separated from the compression of the inner side surface of the horizontal groove (2)/the bayonet (5), and under the action of the spring (8), the outer ends of the a lock tongue (6) and the b lock tongue (7) automatically outwards extend out of the a lock tongue channel (10) and the b lock tongue channel (11).
  8. 8. The quick-change battery system for an electric vehicle according to claim 7, wherein a certain gap is maintained between the bearing surface (1 a) of the battery mounting platform (1) and the lower side surface of the part of the a-bolt (6) which protrudes outwards when the turnover plate (4) is in a completely vertical state; one end of the turnover plate (4) close to the torque deformation sleeve (13) is provided with a hollowed-out groove (26), and the hollowed-out groove (26) is vertically communicated with the b lock tongue channel (11) through a communication channel (51) in the turnover plate (4); The torque deformation sleeve (13) at the hollow groove (26) is externally provided with a notch ring (25) through a spline or integrally, the upper end of the notch ring (25) is integrally provided with a notch seat (23), the notch seat (23) is synchronously provided with a transversely-through notch (24), the communication channel (51) is internally provided with a force transmission arm (16), the length direction of the force transmission arm (16) is perpendicular to the length direction of the torque deformation sleeve (13), one end of the force transmission arm (16) is integrally and vertically connected with a b lock tongue (7), and the other end of the force transmission arm is fixedly connected with a wedge-shaped notch (22), and the wedge-shaped notch (24) and the wedge-shaped notch (22) are mutually adapted; When the turnover plate (4) is in a vertical state, the embedded head (22) is aligned with the embedded opening (24), and when the outer ends of the b lock bolts (7) are outwards extended out of the b lock bolt channels (11) on the basis that the turnover plate (4) is in the vertical state, the embedded head (22) is embedded into the embedded opening (24).
  9. 9. The working method of the electric vehicle quick-change battery system according to claim 8, wherein the horizontal sliding table (44) and the battery mounting platform (1) slide forwards out of the quick-change battery box (39) from the inside of the battery compartment (38) under the guidance of the sliding rail unit (43) in a state that the box door (46) is opened; The battery unit (7) to be positioned is horizontally placed on the bearing surface (1 a) of the battery mounting platform (1), then the battery unit (7) is horizontally centered on the bearing surface (1 a) of the battery mounting platform (1) by sliding the battery unit (7) back and forth and left and right, and finally each lying turnover plate (4) is swung upwards around the torque deformation sleeve (13) to be converted into a vertical state manually or by a tool; after the temporary supporting legs (37) are folded upwards, the assembled battery unit (7), the horizontal sliding table (44) and the battery mounting platform (1) are quickly slid into the battery compartment (38) of the quick-change battery box (39) from outside the battery compartment (38) under the guidance of the sliding rail unit (43), and then the pressing unit (40) is controlled to press down the battery unit (7) entering the battery compartment (38), so that the battery unit (7) is positioned completely.

Description

Quick replacement battery system of electric motor car Technical Field The invention belongs to the field of battery replacement of electric vehicles. Background The battery replacement system of the electric vehicle is generally focused on the convenience of quick disassembly and installation, the existing battery is fixed by adopting rigid locking or simple buckles, the battery replacement system is difficult to effectively adapt to thermal expansion and cold contraction in battery charging and discharging cycles, and connection point looseness is easy to cause or harmful internal stress is easy to generate. Meanwhile, the systems lack real-time sensing capability on the health state of the battery, and particularly, abnormal expansion of the battery such as thermal runaway precursors of bulge and the like cannot be detected in time, so that potential safety hazards are prominent. When the battery tray is replaced, the battery tray extends out of the vehicle body and is often insufficient in stability due to the cantilever structure, so that the centering and electrical connection precision of the battery are affected. Disclosure of Invention The invention aims to overcome the defects in the prior art, and provides the quick battery replacement system for the electric vehicle, which greatly enhances the safety and reliability while improving the power replacement efficiency. According to the technical scheme, the quick-change battery system of the electric vehicle comprises a quick-change battery box, an openable box door is arranged in front of the quick-change battery box, a battery cabin is arranged in the quick-change battery box, a horizontal sliding table is arranged at the bottom of the battery cabin through a sliding rail unit, in the state that the box door is opened, the horizontal sliding table slides out of the quick-change battery box forwards from the battery cabin under the guidance of the sliding rail unit, a battery mounting platform is fixedly arranged on the horizontal sliding table, a transverse temporary supporting leg accommodating groove is arranged at the bottom of the horizontal sliding table, a temporary supporting leg is transversely arranged in the temporary supporting leg accommodating groove, the length of the temporary supporting leg is adjustable, one end of the temporary supporting leg is hinged to one end in the temporary supporting leg accommodating groove through a damping hinge piece, the other end of the temporary supporting leg is connected with the other end of the supporting leg accommodating groove through a magnetic attraction piece, and the temporary supporting leg can swing downwards to the vertical direction downwards by a manual winding hinge piece under the state that the horizontal sliding table slides out of the quick-change battery box forwards from the battery cabin under the guidance of the sliding rail unit, and the length is adjusted. Further, a lifting adjusting column is fixedly arranged at the rear end in the battery bin, a transverse cantilever is vertically connected to the upper end of the lifting adjusting column, a pressing unit is arranged at the tail end of the transverse cantilever, and the pressing unit is arranged above the battery mounting platform. Further, the door lock unit is also included, which can control the locking and unlocking of the door. Further, four positioning platforms are fixedly arranged around the horizontal sliding table, the four positioning platforms are respectively arranged on the lower sides of four sides of the battery mounting platform, horizontal grooves are formed in the positioning platforms, turnover plates are arranged in the horizontal grooves in a lying mode, bayonet openings are hollowed out in the edges of the battery mounting platform on the upper side of the positions of the positioning platforms, the inner outline of each bayonet opening coincides with the inner outline of one end, close to the battery mounting platform, of the horizontal groove, and when the horizontal turnover plates swing to be vertical, the turnover plates are clamped in the bayonet openings. Further, each horizontal groove is internally and transversely provided with a torque deformation sleeve, the outer edge of the torque deformation sleeve is provided with a torque deformation strain gauge along the length direction, the torque deformation strain gauge can detect the torque born by the torque deformation sleeve, one end of the torque deformation sleeve is coaxially and fixedly connected with a fixed sleeve, and the fixed sleeve is fixed with a positioning platform in a spline or embedded mode; One end of the turnover plate is transversely penetrated and provided with a torque deformation sleeve penetrating hole, the torque deformation sleeve transversely rotates to penetrate through the torque deformation sleeve penetrating hole, and inner sides of two ends of the torque deformation sleeve penetrating hole are respectively