CN116278700A - Base support device, power battery box assembly and electric vehicle for replacing - Google Patents
Base support device, power battery box assembly and electric vehicle for replacing Download PDFInfo
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- CN116278700A CN116278700A CN202310572148.1A CN202310572148A CN116278700A CN 116278700 A CN116278700 A CN 116278700A CN 202310572148 A CN202310572148 A CN 202310572148A CN 116278700 A CN116278700 A CN 116278700A
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- shoe
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- 230000000712 assembly Effects 0.000 claims abstract description 21
- 238000000429 assembly Methods 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 claims abstract description 10
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 230000036316 preload Effects 0.000 claims description 2
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 239000002184 metal Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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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
- 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
- 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
-
- 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)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to a collet device, a power battery box assembly and a battery replacing vehicle. The bottom bracket device is used for supporting and limiting the battery box frame and comprises a bottom bracket frame, a plurality of locking seats, a locking assembly, a charging and discharging assembly and a buffering assembly. The bottom bracket device further comprises a floating limiting assembly, the surface of the floating limiting assembly, which exceeds the locking seat, is arranged to be a cylindrical surface, and the floating limiting assemblies mounted on the locking seats form a floating adjusting area protruding towards the periphery of the bottom bracket frame. The battery box frame is arranged on the bottom support frame, the cylindrical surface is abutted to the bottom support frame, the floating adjusting area is used for floating to limit the circumferential installation position of the battery box frame, and the locking assembly is used for limiting the longitudinal installation position of the battery box frame. The collet frame is used for dynamically positioning the transverse installation position of the battery box frame through the floating limiting assemblies distributed on the locking seat, so that the transverse centering adjustment and the overall balance of the battery box frame are realized.
Description
Technical Field
The invention relates to the field of automobiles, in particular to a base device, a power battery box assembly and a battery replacing vehicle.
Background
The battery box for storing energy and the base device for fixing the battery box are arranged on the vehicle for replacing the electric vehicle, the base device is fixed on the body of the vehicle, and the battery box supplies power for the power device of the vehicle so as to realize electric driving. After the electric quantity of the battery box is lower than a preset value, the battery box of the electric vehicle needs to be replaced so as to improve the continuous operation capability. Wherein, the battery box of low electric quantity transfers away the collet device, and the battery box of high electric quantity assembles to the collet device.
The three-stage positioning and locking device for the battery box of the electric heavy-duty truck as disclosed in China patent CN211764880U comprises: the battery box fixing base is provided with an inclined block part, a positioning taper pin, a connector socket guide hole and a side plug type locking mechanism; the inner surface of the cross beam at the bottom of the battery box is matched with the inclined block positioning part of the fixed base, a positioning hole is arranged to be matched with the conical pin of the fixed base, and a connector plug guide post is arranged to be matched with the connector socket guide hole. In the falling process of the battery box, the battery box is positioned by the inclined block, the taper pin and the connector guide post in sequence, so that the rough positioning, the precise positioning and the coupling positioning of the battery box are realized, and the reliable positioning of the battery box and the reliable connection of the connector are finally realized.
When the battery box and the bottom bracket device are assembled, the battery box and the bottom bracket frame are positioned through the longitudinal guiding positioning structure, and the positioning is lack in the transverse direction, so that the battery box has the technical problem that the center positioning is deviated or one-side clamping is carried out, and the transverse positioning assembly of the bottom bracket device has the problem of uncertainty, so that improvement is needed.
Disclosure of Invention
The invention provides a shoe device, a power battery box assembly and a battery replacing vehicle, which aim to solve the problem of transverse positioning deficiency of assembly of a battery box and the shoe device.
In a first aspect, the present invention provides a shoe device, where the shoe device is used for supporting and defining a battery box frame, the shoe device includes a shoe frame, a plurality of locking seats protruding from the shoe frame, locking assemblies correspondingly installed on each locking seat, charge-discharge assemblies and buffer assemblies installed on the shoe frame, the locking seats are spaced apart along a border of the shoe frame, the shoe device further includes a floating limiting assembly elastically and telescopically installed on the locking seats, the floating limiting assembly is located between the shoe frame and the locking assemblies, a surface of the floating limiting assembly beyond the locking seats is set as a cylindrical surface, and the floating limiting assemblies installed on the plurality of locking seats form a floating adjustment area protruding towards the periphery of the shoe frame;
the battery box frame is arranged on the bottom support frame, the cylindrical surface is abutted to the bottom support frame, the floating adjusting area is used for floating to limit the circumferential installation position of the battery box frame, and the locking assembly is used for limiting the longitudinal installation position of the battery box frame.
In some embodiments, the elastic preload of each of the floating stop assemblies is independently adjustable.
In some embodiments, the floating limiting assembly includes a limiting post, an elastic member elastically abutting against the limiting post, and an adjusting member abutting against the elastic member, where the adjusting member is assembled on the locking seat and is used for adjusting an elastic pre-tightening force of the elastic member acting on the limiting post.
In some embodiments, the limit post is rotatably connected to the locking seat.
In some embodiments, the height of the floating limiting component beyond the surface of the locking seat is 1 mm-3 mm.
In some embodiments, the height of the floating stop assembly above the bearing surface is greater than or equal to one half the height of the bottom beam, wherein the bearing surface is a planar surface of the shoe frame for supporting the battery case frame, and the bottom beam is an annular frame to which the battery case frame is crimped.
In some embodiments, the shoe device further comprises two or more guide taper pins detachably mounted on the shoe frame, the guide taper pins are smaller than the locking seat, the guide taper pins are distributed on two opposite sides of the annular frame of the shoe frame, and the charging and discharging assembly is located in a surrounding area of the guide taper pins.
In some embodiments, the shoe device comprises a charging gun assembly mounted at the end of the shoe frame, the plugging direction of the charging gun assembly is parallel to the length direction of the shoe frame, and the charging gun assembly is electrically connected with the charging and discharging assembly.
In some embodiments, the shoe device further comprises a fool-proof component mounted at one of the corner positions of the shoe frame, the fool-proof component has a height smaller than that of the locking seat, and the fool-proof component has a height greater than that of the charge-discharge component.
In some embodiments, the bumper assembly includes a plurality of bumpers, each of the bumpers having at least one strain groove recessed in a surface thereof, the latch being positioned between two of the bumpers.
In a second aspect, the invention provides a power battery box assembly, which comprises a battery box frame and the bottom support device, wherein the battery box frame is buckled in along a positioning area formed by a plurality of locking seats, the floating limiting component is elastically abutted against the battery box frame, and the locking component is spliced and locked with the battery box frame.
In some embodiments, the battery box frame is provided with a locking diagonal brace block matched with the locking assembly, and the abutting surface of the locking assembly and the locking diagonal brace block is a guide inclined surface matched with each other.
In a third aspect, the present invention provides a battery-powered vehicle comprising a vehicle body and a power battery box assembly as described above, the shoe frame being secured to the vehicle body.
In order to solve the problem of transverse positioning deficiency of the assembly of the battery box and the bottom bracket device, the invention has the following advantages: the collet frame is used for dynamically positioning the transverse installation position of the battery box frame through the floating limiting assemblies distributed on the locking seat, so that the transverse centering adjustment and the overall balance of the battery box frame are realized. The locking assembly locks the longitudinal direction of the battery box frame so as to keep the longitudinal assembly position of the battery box frame stable and accurate. The buffer component and the collet frame support and buffer the battery box frame, and the height of the bottom installation plane of the battery box frame is kept consistent, so that the battery box connected with the collet device is matched and the assembly positions are consistent.
Drawings
FIG. 1 illustrates a perspective view of a shoe device of some embodiments;
FIG. 2 illustrates a schematic diagram of a front view of a shoe device of some embodiments;
FIG. 3 illustrates a partial schematic view of a latch assembly of some embodiments mounted to a latch mount;
FIG. 4 illustrates a partial cross-sectional schematic view of a floating stop assembly of some embodiments mounted to a latch seat;
FIG. 5 illustrates a schematic view of a battery box mounted to a shoe device of some embodiments;
FIG. 6 illustrates a locking schematic of some embodiments of a floating stop assembly and a locking assembly co-locking a battery box frame;
fig. 7 shows a schematic diagram of a battery box frame of some embodiments.
In the drawings, a shoe frame 10; a fool-proof assembly 11; a locking seat 20; a sloped guide surface 21; a locking assembly 30; a tongue piece 31; a telescopic driving member 32; a charge-discharge assembly 40; a cushioning assembly 50; a buffer member 51; a metal substrate layer 511; a rubber layer 512; a strain tank 52; a floating stop assembly 60; a limit post 61; an elastic member 62; an adjusting member 63; an adapter 64; a guide taper pin 70; a guide plane 71; a conical surface 72; a battery box frame 80; a locking diagonal stay 81; and a diagonal brace bevel 82.
Detailed Description
The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those of ordinary skill in the art to better understand and thus practice the teachings of the present invention, and are not meant to imply any limitation on the scope of the invention.
As used herein, the term "comprising" and variants thereof are to be interpreted as meaning "including but not limited to" open-ended terms. The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment. The term "another embodiment" is to be interpreted as "at least one other embodiment".
As shown in fig. 1 to 4, the present invention proposes a shoe device for supporting and defining a battery box frame 80. The shoe device is fixed on the vehicle and moves along with the vehicle. The battery box provides motive power for the vehicle so that the vehicle can be driven by the power. Wherein the shoe device is capable of supporting and defining the battery box frame 80 to keep the power supply of the battery box stable, and the shoe device supports battery box power change.
The shoe device comprises a shoe frame 10, a plurality of locking seats 20 protruding out of the shoe frame 10, a locking assembly 30 correspondingly installed on each locking seat 20, a charging and discharging assembly 40 and a buffering assembly 50 installed on the shoe frame 10, and the locking seats 20 are distributed at intervals along the border of the shoe frame 10. The shoe frame 10 is a rigid frame structure, which is a rectangular frame structure formed by welding and fixing a plurality of rectangular pipes. The locking seats 20 are provided in plurality and distributed along the ring shape of the shoe frame 10 to form a common guide for positioning and defining the battery box frame 80. The locking seat 20 is located in a surrounding area of the peripheral ring frame of the shoe frame 10, and the buffering components 50 are mounted on the shoe frame 10 and distributed on two sides of the locking seat 20 to form an integral shock-absorbing buffering structure. Optionally, cushioning assembly 50 includes a plurality of spaced apart rubber pads. The buffer assembly 50 and the shoe frame 10 support and buffer the battery box frame 80, and keep the height of the bottom installation plane of the battery box frame 80 consistent, so that the battery boxes connected with the shoe device realize uniform distribution and consistent assembly positions. In some embodiments, the bumper assembly 50 includes a plurality of bumpers 51, each bumper 51 having at least one strain relief 52 recessed in a surface thereof, with the latch mount 20 being located between the two bumpers 51. The surface of the buffer member 51 is provided with the strain groove 52, so that the deformation of the buffer member 51 can be towards the periphery and the deformation in the strain groove 52, and the buffer member 51 is prevented from being crushed. Alternatively, the buffer 51 includes a metal substrate layer 511 and a rubber layer 512 protruding from the metal substrate layer 511, and the area of the metal substrate layer 511 is larger than that of the rubber layer 512, so that the screw directly locks the metal substrate layer 511 and the shoe frame 10 without interfering with deformation of the rubber layer 512.
Further, the shoe device further comprises a floating limiting assembly 60 elastically and telescopically mounted on the locking seat 20, and the floating limiting assembly 60 is positioned between the shoe frame 10 and the locking assembly 30. The floating stopper assembly 60 is disposed in a cylindrical surface beyond the surface of the locking seats 20, and the floating stopper assemblies 60 mounted to the plurality of locking seats 20 constitute a floating adjustment region protruding toward the outer circumference of the shoe frame 10. The battery box frame 80 is erected on the base frame 10, the floating adjustment area is used for floating to define the circumferential mounting position of the battery box frame 80, and the locking assembly 30 is used for defining the longitudinal mounting position of the battery box frame 80.
The shoe frame 10 dynamically positions the lateral mounting position of the battery box frame 80 through the floating limiting assemblies 60 distributed on the locking seat 20, thereby realizing the lateral centering adjustment and the overall balance of the battery box frame 80. The locking assembly 30 locks the longitudinal direction of the battery case frame 80 to keep the longitudinal assembly position of the battery case frame 80 stable and accurate. The portion of the floating limiting assembly 60 protruding out of the locking seat 20 is a cylindrical surface, and the center line of the cylindrical surface is parallel to the direction in which the battery box frame 80 is buckled into the locking seat 20. The cylindrical surface can guide smooth leading-in and automatic positioning of the battery box frame 80, meanwhile, the elastic elasticity of the floating limiting assembly 60 can keep the clearance of the battery box frame 80 balanced, and the battery box frame 80 can be automatically aligned before being pressed and connected to the collet frame 10 in a crimping manner, so that the defect of single-side clamping of the battery box frame 80 and the collet device is avoided.
As shown in fig. 4 to 7, the floating limiting assembly 60 is individually mounted to the locking seats 20, and each locking seat 20 is individually adjustable. The elastic pre-tightening force of each floating limiting assembly 60 can be independently adjusted to achieve a substantially uniform pre-tightening force in all directions of the shoe device. The elastic pre-tightening force is 100-500 kg of pre-tightening pressure so as to ensure that the battery box device can be kept tensioned and centered automatically under the action of the elastic pre-tightening force.
In some embodiments, the floating limiting assembly 60 includes a limiting post 61, an elastic member 62 elastically abutting against the limiting post 61, and an adjusting member 63 abutting against the elastic member 62, where the adjusting member 63 is assembled to the locking seat 20 and is used for adjusting an elastic pre-tightening force of the elastic member 62 on the limiting post 61. The locking seat 20 is provided with a limiting hole, and the limiting post 61 extends out of the limiting hole. The end surface or body of the limit post 61 is provided as a cylindrical surface and passes out of the limit hole. The stopper post 61 linearly moves in a telescopic manner along the locking seat 20, and the telescopic direction intersects with the moving direction of the battery box frame 80.
The elastic piece 62 elastically deforms under the pushing force of the adjusting piece 63, and the limiting post 61 receives the elastic pre-tightening force of the elastic piece 62. Optionally, the elastic member 62 is a disc spring in stacked design, and a large elastic pre-tightening force is obtained in a small axial movement space of the disc spring, so as to meet the requirements of small movement amount and large elastic pre-tightening force of the limiting post 61. Preferably, the height of the floating limiting assembly 60 above the surface of the locking seat 20 is 1 mm-3 mm. The protruding directions of the limit posts 61 of the two locking seats 20 oppositely arranged on the bottom support frame 10 are opposite, when the battery box frame 80 is buckled into the bottom support device, the pipe walls of the battery box frame 80 are in extrusion contact with the surfaces of the limit posts 61, so that the limit posts 61 are gradually extruded in a balanced manner on two opposite sides of the battery box frame 80, and extrusion is smooth and smooth. For example, the height of the floating stop assembly 60 above the surface of the latch base 20 is 1mm, 1.5mm, 2mm, 2.5mm, 3mm.
Alternatively, the limiting post 61 is rotatably connected with the locking seat 20, so as to improve the smoothness of the friction sliding between the battery box frame 80 and the limiting post 61. The limit post 61 has a stepped shaft structure, and both ends of the limit post 61 are limited to the locking seat 20. Preferably, the floating stop assembly 60 includes an adapter 64 connected to the elastic member 62 and the stop post 61, the adapter 64 being provided with an arcuate slot adapted to the stop post 61. The disc spring abuts against the other end of the adapter 64.
The floating limiting assemblies 60 are arranged at intervals along the height direction of the locking seat 20, and the height of the limiting columns 61 from the bottom support frame 10 is the abutting position of the limiting columns 61 abutting against the battery box frame 80. Preferably, the height of the floating stop assembly 60 above the bearing surface is greater than or equal to one half the height of the bottom beam, wherein the bearing surface is the plane of the shoe frame 10 for supporting the battery box frame 80 and the bottom beam is the annular frame of the battery box frame 80 that is crimped to the shoe frame 10. The bearing surface is the final plane of the collet frame 10 and the elastic component supporting the battery box frame 80, preferably, a bearing plate is arranged on the battery box frame 80, the bearing plate is a strip boss structure protruding out of the surface of the collet frame 10, and the battery box frame 80 is in press connection with the bearing plate and is supported by elastic deformation of the elastic component. The height of the floating limiting assembly 60 exceeding the bearing surface is greater than or equal to half of the height of the bottom beam, so that the battery box frame 80 has corresponding moving space to realize automatic correction after passing over the floating limiting assembly 60, and the battery box frame can also have a good positioning pre-tightening structure. Optionally, the height of the floating stop assembly 60 above the load bearing surface is one-half, two-thirds, etc. of the bottom beam height.
As shown in fig. 1 to 4, in some embodiments, the free end of the locking seat 20 is provided with a sloped guide surface 21, the sloped guide surface 21 being sloped toward the outside of the shoe frame 10. Alternatively, the locking seat 20 has a rectangular cross section. The plurality of locking seats 20 are columnar bulges and are distributed at intervals, the tail ends of the locking seats 20 are provided with inclined guide surfaces 21, and the inclined guide surfaces 21 incline towards the outer side of the bottom bracket device to form a guide structure for primarily guiding the battery box frame 80 to slide. The wall surface where the floating limiting assembly 60 is located is intersected with the lower end of the inclined guide surface 21, and the battery box frame 80 slides from the inclined guide surface 21 to the wall surface of the outwards side of the locking seat 20 and is in abutting connection with the floating limiting assembly 60, so that the guiding effect is good.
Preferably, the shoe device further comprises two or more guide taper pins 70 detachably mounted on the shoe frame 10, the height of the guide taper pins 70 is smaller than that of the locking seat 20, the guide taper pins 70 are distributed on two opposite sides of the annular frame of the shoe frame 10, and the charging and discharging assembly 40 is located in the surrounding area of the guide taper pins 70. The guide taper pins 70 are distributed on the shoe frame 10 to form a fine positioning. Wherein, be provided with the location structure of adaptation direction taper pin 70 on battery box frame 80, further improve the cooperation precision of battery box frame 80 and collet device. Alternatively, four guide taper pins 70 are provided, and four guide taper pins 70 are distributed at the apex positions of the rectangle or trapezoid to constitute the directional positioning. Alternatively, the height of the guide taper pin 70 is small, the end of the guide taper pin 70 is provided as a taper surface 72, and the battery box frame 80 is slid out from the inclined guide surface 21 and then enters the guide area of the guide taper pin 70 and then enters the circumferential positioning area of the floating limiting assembly 60 to form a multi-angle co-positioning.
Optionally, the side of at least one guide cone pin 70 is provided with a guide plane 71, which guide plane 71 is parallel to the centre line of the guide cone pin 70. The guide plane 71 serves to guide and define the battery box frame 80, thereby achieving automatic centering and plane positioning, further improving the assembly accuracy of the battery box frame 80 to the shoe frame 10. Further, the guide taper pin 70 is disposed adjacent to the locking seat 20 to improve the accuracy of the guide positioning.
In some embodiments, the shoe device includes a charging gun assembly mounted to an end of the shoe frame 10, the plugging direction of the charging gun assembly being parallel to the length direction of the shoe frame 10, the charging gun assembly being electrically connected to the charging and discharging assembly 40. The base frame 10 is a rectangular frame structure, and the charging gun assembly is arranged at the short side of the base frame 10. On the vehicle, the rifle subassembly that charges is located the outside of vehicle to conveniently supply power for the consumer. Preferably, the charging gun assembly is disposed opposite the locking base 20, and the charging gun assembly can be protected by the shoe frame 10.
Further, the bottom bracket device further comprises a fool-proof component 11 installed at one corner position of the bottom bracket frame 10, wherein the fool-proof component 11 is smaller than the locking seat 20, and the fool-proof component 11 is larger than the charging and discharging component 40. The fool-proof assembly 11 is arranged on one side of the bottom bracket frame 10, and when the lifting angle of the battery box frame 80 is accurate, the battery box frame 80 is assembled to the bottom bracket frame 10 in a guiding sliding manner along the locking seat 20. When the lifting angle of the battery box frame 80 is inaccurate, the battery box frame 80 slides along the locking seat 20 in a guiding way and then impacts the fool-proof assembly 11, and the battery box frame 80 cannot be assembled to the bottom bracket frame 10 and needs to be lifted again. Alternatively, the fool-proof component 11 is a fool-proof column disposed at a corner of the collet frame 10.
As shown in fig. 4 to 7, the shoe device disclosed in the above embodiment is applied to a power battery box assembly to constitute a reliable locking and unlocking function. The power battery box assembly comprises a battery box frame 80 and a bottom support device, the battery box frame 80 is buckled in along a positioning area formed by a plurality of locking seats 20, the floating limiting assembly 60 is elastically abutted to the battery box frame 80, and the locking assembly 30 is spliced and locked with the battery box frame 80. The battery case frame 80 is used to mount a plurality of battery packs to constitute an energy storage unit. The battery box frame 80 is fixed to the shoe frame 10 by hoisting, thereby achieving hoisting disassembly or assembly. Alternatively, the shoe frame 10 is a rectangular frame, and six locking seats 20 are provided. Two locking seats 20 are distributed on the long side of each shoe frame 10, and one locking seat 20 is distributed on the short side of each shoe frame 10.
The battery box frame 80 is provided with a local reinforcement structure that mates with the locking assembly 30 to accommodate the abutting support of the locking assembly 30. The locking assembly 30 includes a telescopic driving member 32, a sliding seat mounted on the locking seat 20, and a latch member 31 slidably connected to the sliding seat, wherein the latch member 31 is configured to define the battery box frame 80. The telescopic driving piece 32 is mounted on the locking seat 20, and the bolt piece 31 is driven by the telescopic driving piece 32 to move in a telescopic manner. In some embodiments, the battery box frame 80 is provided with a locking diagonal brace 81 matched with the locking assembly 30, and the abutting surface of the locking assembly 30 and the locking diagonal brace 81 is a guide inclined surface matched with each other. The locking diagonal stay 81 is provided as a protruding positioning block structure, and the top surface of the locking diagonal stay 81 is provided as a diagonal stay inclined surface 82, and the diagonal stay inclined surface 82 is inclined from the outer side to the inner side of the battery box frame 80. When the latch bolt 31 extends, the inclined surface of the latch bolt 31 is engaged with and abutted against the inclined surface of the locking inclined strut block 81 to form a tight abutting fit structure, so that the effective locking of the locking assembly 30 to the battery box frame 80 is maintained, and the locking process is stable. When the tongue piece 31 is retracted, the inclined surface of the tongue piece 31 and the inclined surface 82 of the locking inclined stay 81 are rapidly separated, thereby constituting rapid unlocking of the battery box frame 80.
The plurality of locking diagonal braces 81 of the battery box frame 80 and the lock tongue piece 31 on the collet frame 10 are positioned through inclined planes, the floating limiting component 60 on the locking seat 20 is matched, the battery box frame 80 is centered and centered automatically relative to the collet frame 10, and the assembly accuracy and the combination compactness of the battery box frame 80 are improved.
The invention also discloses a battery-changing vehicle, which comprises a vehicle body and the power battery box assembly disclosed in the embodiment above, wherein the collet frame 10 is fixed on the vehicle body.
The foregoing description of implementations of the present disclosure has been presented for purposes of illustration and description. The foregoing description is not intended to be exhaustive or to limit the disclosure to the precise form disclosed, and modifications and variations are possible in light of the above teachings or may be acquired from practice of the disclosure. The embodiments were chosen and described in order to explain the principles of the present disclosure and its practical application to enable one skilled in the art to utilize the present disclosure in various embodiments and with various modifications as are suited to the particular use contemplated.
Claims (13)
1. The bottom bracket device is used for supporting and limiting a battery box frame and comprises a bottom bracket frame, a plurality of locking seats protruding out of the bottom bracket frame, locking assemblies correspondingly arranged on each locking seat, charge and discharge assemblies arranged on the bottom bracket frame and buffer assemblies, wherein the locking seats are distributed at intervals along the border of the bottom bracket frame, and the bottom bracket device is characterized by also comprising floating limiting assemblies elastically and telescopically arranged on the locking seats, the floating limiting assemblies are positioned between the bottom bracket frame and the locking assemblies, the surfaces of the floating limiting assemblies, which exceed the locking seats, are arranged into cylindrical surfaces, and the floating limiting assemblies arranged on the locking seats form floating adjustment areas protruding towards the periphery of the bottom bracket frame;
the battery box frame is arranged on the bottom support frame, the cylindrical surface is abutted to the bottom support frame, the floating adjusting area is used for floating to limit the circumferential installation position of the battery box frame, and the locking assembly is used for limiting the longitudinal installation position of the battery box frame.
2. The shoe assembly of claim 1, wherein the elastic preload of each of the floating stop assemblies is independently adjustable.
3. The shoe device of claim 2, wherein the floating limiting assembly comprises a limiting post, an elastic member elastically abutting against the limiting post, and an adjusting member abutting against the elastic member, and the adjusting member is assembled on the locking seat and is used for adjusting the elastic pretightening force of the elastic member acting on the limiting post.
4. A shoe arrangement according to claim 3, wherein the limit post is rotatably connected to the locking seat.
5. The shoe device of claim 1, wherein the height of the floating stop assembly above the surface of the locking seat is 1mm to 3mm.
6. The shoe arrangement of claim 1, wherein the height of the floating stop assembly above the bearing surface is greater than or equal to one half the height of a bottom beam, wherein the bearing surface is a planar surface of the shoe frame for supporting the battery case frame, and the bottom beam is an annular frame to which the battery case frame is crimped.
7. The shoe device of claim 1, further comprising two or more guide taper pins removably mounted to the shoe frame, the guide taper pins having a height less than a height of the locking seat, the guide taper pins being disposed on opposite sides of the annular frame of the shoe frame, the charge and discharge assembly being located within a surrounding area of the guide taper pins.
8. The shoe assembly of claim 7, wherein the shoe assembly includes a charging gun assembly mounted to an end of the shoe frame, the charging gun assembly having a plugging direction parallel to a length direction of the shoe frame, the charging gun assembly being electrically connected to the charging and discharging assembly.
9. The shoe device of claim 1, further comprising a fool-proofing assembly mounted to one of the corner positions of the shoe frame, the fool-proofing assembly having a height less than a height of the locking seat and a height greater than a height of the charge-discharge assembly.
10. The shoe arrangement of claim 1, wherein the cushioning assembly comprises a plurality of cushioning members, each of the cushioning members having at least one strain groove recessed in a surface thereof, the locking seat being located between two of the cushioning members.
11. A power battery box assembly comprising a battery box frame and a bottom support device as claimed in any one of claims 1 to 10, wherein the battery box frame is buckled in a positioning area formed by a plurality of locking seats, the floating limiting component is elastically abutted against the battery box frame, and the locking component is spliced and locked with the battery box frame.
12. The power cell box assembly of claim 11, wherein the cell box frame is provided with a locking diagonal brace block matched with the locking component, and the abutting surface of the locking component and the locking diagonal brace block is a guide inclined surface matched with each other.
13. A replacement vehicle comprising a vehicle body and the power cell box assembly of claim 11 or 12, the shoe frame being secured to the vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310572148.1A CN116278700A (en) | 2023-05-22 | 2023-05-22 | Base support device, power battery box assembly and electric vehicle for replacing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310572148.1A CN116278700A (en) | 2023-05-22 | 2023-05-22 | Base support device, power battery box assembly and electric vehicle for replacing |
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| CN116278700A true CN116278700A (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310572148.1A Pending CN116278700A (en) | 2023-05-22 | 2023-05-22 | Base support device, power battery box assembly and electric vehicle for replacing |
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