CN114683948A - Electricity conversion system for engineering machinery - Google Patents
Electricity conversion system for engineering machinery Download PDFInfo
- Publication number
- CN114683948A CN114683948A CN202210274954.6A CN202210274954A CN114683948A CN 114683948 A CN114683948 A CN 114683948A CN 202210274954 A CN202210274954 A CN 202210274954A CN 114683948 A CN114683948 A CN 114683948A
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- Prior art keywords
- battery
- locking
- frame
- pins
- rear frame
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/80—Exchanging energy storage elements, e.g. removable batteries
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- 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
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- 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)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to a battery replacing system for engineering machinery, which comprises a rear frame, a battery replacing connector base and a battery system frame, wherein the battery system frame comprises a first part, a second part and a third part, the first part is arranged above the rear frame, the battery replacing connector base is arranged on the rear frame and is positioned below the first part, the second part and the third part are respectively positioned at two sides of the rear frame, the first part comprises at least one layer of battery box frame, a battery locking mechanism is arranged between the lower ends of the rear frame and the first part, the battery locking mechanism comprises a locking unit and a limiting unit, the locking unit comprises a plurality of telescopically arranged locking pins and a plurality of corresponding locking holes, and the moving directions of the locking pins are coplanar and not in the same direction; this system adopts reasonable design structure, rationally arranges the position on the frame of trading the electric system behind, can effectively avoid the driver's cabin field of vision to be sheltered from, locking mechanism is complicated unreliable scheduling problem, helps promoting the performance and the competitiveness of host computer product.
Description
Technical Field
The invention relates to the technical field of new energy of engineering machinery, in particular to a battery replacement system for engineering machinery.
Background
With the emphasis of China on environmental protection, carbon reduction and emission reduction, engineering machinery gradually develops from a traditional high-pollution and high-emission fuel oil type to an electric type. At present, the main problem influencing the electromotion of engineering machinery is that the charging time is too long and the operation is delayed. Due to the fact that the accommodating space of the vehicle body is limited, the price of a power battery is high, the engineering machinery cannot be loaded with more batteries, and the long-time operation duration can be seriously extruded due to frequent long-time charging.
The prior art relates to a power exchanging system of an electric heavy truck, but the prior art is not suitable for engineering machinery. The power exchanging box, the base and the locking mechanism in the prior art are positioned above the frame, so that the height of the power exchanging box is flush with or higher than that of a cab, a driver cannot observe the rear part of a vehicle through a rear window of the cab, and the power exchanging box, the base and the locking mechanism are not an essential function for a heavy truck for pulling goods, but are unacceptable defects for engineering machinery needing to observe the rear operation condition of the vehicle. In addition, the prior art has the defects of complex locking mechanism and poor locking.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the battery replacement system for the engineering machinery, which can solve the technical problems of long charging time, extrusion operation time, blocked cab view, complex and unreliable locking mechanism and the like, and effectively improves the product practicability.
A battery replacement system for engineering machinery comprises a rear frame, a battery replacement connector base and a battery system frame, wherein the battery system frame comprises a first part, a second part and a third part, the first part is arranged above the rear frame, the battery replacement connector base is installed on the rear frame and is positioned below the first part, the second part and the third part are respectively positioned on two sides of the rear frame, the first part comprises at least one layer of battery box body frame, the second part comprises a battery high-voltage distribution box frame and a charging socket frame, the third part comprises a liquid cooling unit frame, a battery locking mechanism is arranged between the lower end of the rear frame and the lower end of the first part and comprises a locking unit and a limiting unit, the locking unit comprises a plurality of telescopically arranged locking pins and a plurality of corresponding locking holes, the locking pin is arranged on the rear frame, and the locking hole is arranged on the lower end surface of the first part; the moving directions of the locking pins are coplanar and different; the limiting unit comprises a plurality of limiting pins and a plurality of corresponding limiting holes, the limiting pins are arranged on the rear frame, and the limiting holes are arranged on the lower end face of the first part; the length extending direction of the limiting pins is perpendicular to the plane of the moving directions of the locking pins.
Optionally, a plurality of bottom support plates are arranged on the rear frame, the upper surfaces of the bottom support plates are flush, and the limit pins are correspondingly and respectively arranged on the bottom support plates in an upward extending manner; the lower surface of the bottom supporting plate is respectively provided with an electric push rod, and the locking pins are prism pins which are respectively arranged at the end parts of the corresponding electric push rods.
Optionally, the height of the limit pins protruding from the upper surface of the bottom bracket plate is different.
Optionally, the battery replacement connector base comprises a connecting plate, a spring assembly, a mounting plate and a plurality of battery replacement connector sockets, the connecting plate is mounted on the rear frame, the mounting plate is mounted on the connecting plate through the spring assembly, and the plurality of battery replacement connector sockets are arranged on the mounting plate.
Optionally, a battery replacing high-voltage distribution box frame is arranged below the battery box frame body, a battery replacing high-voltage distribution box is arranged in the battery replacing high-voltage distribution box frame, and a battery replacing connector plug matched with the battery replacing connector socket is arranged on the battery replacing high-voltage distribution box.
Optionally, the battery replacement connector socket is provided with a first high-low voltage contact piece and at least two guiding limiting connecting pins, the battery replacement connector plug is provided with a second high-low voltage contact piece and at least two guiding limiting connecting holes, the first high-low voltage contact piece is matched with the second high-low voltage contact piece, and the at least two guiding limiting connecting pins are matched with the at least two guiding limiting connecting holes.
Optionally, the first portion includes a plurality of layers of battery case frames stacked one on another and connected by a connecting member.
Optionally, the battery box frame includes a bottom plate and a side enclosing plate extending from the periphery of the bottom plate to the same side, and a battery box mounting hole is formed in the bottom plate.
Optionally, a plurality of hood brackets are arranged on the side of the first part, and a plurality of hoisting rings are arranged on the upper part of the first part.
Optionally, the lower terminal surface of first portion is provided with a plurality of locking pieces, the locking piece is the C type and forms at the opening part locking hole.
Optionally, the direction of movement of at least one of the locking pins is perpendicular to the direction of movement of at least one other of the locking pins.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects: the battery replacement system for the engineering machinery adopts a reasonable design structure, the position of the battery replacement system on the rear frame is reasonably arranged, the problems that the view of a cab is blocked, a locking mechanism is complex and unreliable and the like can be effectively avoided, and the performance and the competitiveness of a host product are improved.
Drawings
Fig. 1 is a front view of an electricity swapping system for construction machinery according to the present invention;
fig. 2 is a front view of a battery system frame in the battery replacement system for construction machinery according to the present invention;
fig. 3 is an isometric view of a battery system frame in the battery replacement system for construction machinery according to the present disclosure;
fig. 4 is a bottom view of a battery system frame in the battery replacement system for construction machinery according to the present invention;
fig. 5 is a partial front view of a rear frame in the battery replacement system for construction machinery according to the present invention;
fig. 6 is a partial side view of a rear frame in the battery replacement system for construction machinery according to the present invention;
fig. 7 is a schematic structural diagram of an electric push rod and a prismatic pin in the battery replacement system for engineering machinery according to the present invention;
fig. 8 is a schematic structural view of a limit pin and a limit hole in the battery replacement system for engineering machinery according to the present invention;
fig. 9 is a schematic structural diagram of a battery locking mechanism in the battery replacement system for construction machinery according to the present invention;
fig. 10 is a schematic diagram of a power swapping connector base and a power swapping high-voltage distribution box in the power swapping system for engineering machinery according to the present invention;
fig. 11 is an enlarged view a in fig. 10.
In the drawings: 1-rear vehicle frame, 2-battery system frame, 3-power change connector base, 11-bottom supporting plate, 12-limit pin, 13-locking unit, 131-electric push rod, 132-prism pin, 14-guide cylinder, 21-battery box frame, 211-limit hole, 22-battery high-voltage distribution box frame, 23-charging socket frame, 24-liquid cooling unit frame, 25-power change high-voltage distribution box frame, 26-power change high-voltage distribution box, 261-power change connector plug, 2611-guide limit connecting hole, 2612-high and low-voltage contact piece two, 27-locking block, 28-hood support, 29-hoisting ring, 31-power change connector socket, 311-guide limit connecting pin, 312-high and low-voltage contact piece one, 32-mounting plate, 33-spring assembly, 34-connecting plate.
Detailed Description
Exemplary embodiments of the present invention are described below with reference to the accompanying drawings, in which various details of embodiments of the invention are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
As shown in fig. 1 to 11, the battery replacing system for engineering machinery of the present invention includes a rear frame 1, a battery replacing connector base 3 and a battery system frame 2, wherein the battery system frame 2 includes a first portion, a second portion and a third portion, the first portion is disposed above the rear frame 1, the battery replacing connector base 3 is mounted on the rear frame 1 and located below the first portion, the second portion and the third portion are respectively located at two sides of the rear frame 1, the first portion includes at least one layer of battery box frame 21, the second portion includes a battery high voltage distribution box frame 22 and a charging socket frame 23 for mounting a battery high voltage distribution box and a charging socket, the third portion includes a liquid cooling unit frame 24 for mounting a liquid cooling unit, a battery locking mechanism is disposed between the rear frame 1 and the lower end of the first portion, the battery locking mechanism includes a locking unit 13 and a limiting unit, the locking unit 13 comprises a plurality of telescopically arranged locking pins and a plurality of corresponding locking holes, the locking pins are arranged on the rear frame 1, and the locking holes are arranged on the lower end surface of the first part; the moving directions of the locking pins are coplanar and different; the limiting unit comprises a plurality of limiting pins 12 and a plurality of corresponding limiting holes 211, the limiting pins 12 are arranged on the rear frame 1, and the limiting holes 211 are arranged on the lower end surface of the first part; the length extension direction of the limit pins 12 is perpendicular to the plane of the moving direction of the locking pins; the lower surface of the battery box frame 21 at the lowest layer is attached to the upper surface of the rear frame 1, and in the embodiment, the battery high-voltage distribution box, the liquid cooling unit and the like (or components such as a battery box and the like) are arranged at two sides of the battery box frame 21 at the lowest layer instead of being stacked on the battery system frame 2, so that the height space occupied above the frame is reduced. The battery system frame 2 can be provided with a whole set of battery system, and charging and thermal management can be performed no matter whether the vehicle is in a vehicle-mounted state or not.
More specifically, a plurality of bottom support plates 11 are arranged on the rear frame 1, the bottom support plates 11 are welded on the rear frame 1, the upper surfaces of the bottom support plates 11 are flush, the limiting pins 12 correspondingly extend upwards and are respectively arranged on the bottom support plates 11 one by one, the heights of the limiting pins 12 protruding out of the upper surfaces of the bottom support plates 11 are different, namely, in the falling process of the battery system frame 2, the limiting pins 12 do not simultaneously penetrate into the corresponding limiting holes 211, so that the effect of positioning and guiding one by one is achieved, namely, the effect of gradually forming thin guiding from thick guiding is achieved, and manual alignment and adjustment are not needed; the lower surfaces of the bottom supporting plates 11 are respectively provided with electric push rods 131, the locking pins are prism pins 132 which are respectively arranged at the end parts of the corresponding electric push rods 131, the moving paths corresponding to the electric push rods 131 are respectively provided with a guide cylinder 14, and the electric push rods 131 and the like are arranged on the lower surfaces of the bottom supporting plates 11, so that the height space is not occupied; two magnetic switches are arranged on the moving path of the prism pin 132, one magnetic switch is a locking position, and the other magnetic switch is a signal sent when the prism pin retracts to an unlocking position, when a forward voltage is provided for the electric push rod 131, the electric push rod 131 performs an extending action to push the prism pin 132 to move along the guide cylinder 14 until part of the prism pin is positioned in the locking hole, the magnetic switch at the locking position is triggered, the prism pin 132 is limited in the locking hole and the guide cylinder 14, so that the battery system frame 2 is locked on the rear frame 1, and due to the arrangement of the direction of each locking unit 13, the movement of the whole battery system frame 2 in three-dimensional directions of the length, the width and the height of the vehicle can be limited by combining the action of the limiting unit; when reverse voltage is provided for the electric push rod 131, the electric push rod 131 performs retraction, the prism pin 132 retracts and triggers the unlocking position magnetic switch to complete unlocking; the battery replacing connector base 3 comprises a connecting plate 34, a spring assembly 33, a mounting plate 32 and a plurality of battery replacing connector sockets 31, the connecting plate 34 is mounted on the rear frame 1, the mounting plate 32 is mounted on the connecting plate 34 through the spring assembly 33, and the plurality of battery replacing connector sockets 31 are arranged on the mounting plate 32; a battery replacing high-voltage distribution box frame 25 is arranged below the battery box frame body, a battery replacing high-voltage distribution box 26 is arranged in the battery replacing high-voltage distribution box frame 25, and a battery replacing connector plug 261 matched with the battery replacing connector socket 31 is arranged on the battery replacing high-voltage distribution box 26; the battery replacement connector socket 31 is provided with a first high-low voltage contact piece 312 and at least two guide limiting connecting pins 311, the battery replacement connector plug 261 is provided with a second high-low voltage contact piece 2612 and at least two guide limiting connecting holes 2611, the first high-low voltage contact piece 312 is matched with the second high-low voltage contact piece 2612, and the at least two guide limiting connecting pins 311 are matched with the at least two guide limiting connecting holes 2611; the spring assembly 33 can not only compensate for the position error of the battery system frame 2 and the battery replacing connector base 3 in the three-dimensional space, but also provide a certain pressing force to ensure that the battery replacing connector socket 31 and the battery replacing connector plug 261 are reliably electrically connected.
The first part comprises a plurality of layers of battery case frames 21, and the battery case frames 21 are stacked one on another and connected through connecting pieces (bolts); the battery box body frame 21 comprises a bottom plate and side surrounding plates extending from the periphery of the bottom plate to the same side, a battery box body mounting hole is formed in the bottom plate, and a battery box body accommodating space is formed between the bottom plate and the side surrounding plates; the lateral part of the first part is provided with a plurality of hood brackets 28, and the upper part of the first part is provided with a plurality of hoisting rings 29; the lower end surface of the first part is provided with a plurality of locking blocks 27, the locking blocks 27 are C-shaped, and locking holes are formed at the openings of the locking blocks 27; the direction of movement of at least one of the locking pins is perpendicular to the direction of movement of at least one other of the locking pins.
The locking unit 13 and the limiting unit can limit the length, the width and the height of the main machine in three-dimensional directions, the end part of the limiting pin 12 is in a conical shape, and the end part of the limiting hole 211 is in a horn shape and plays a role in guiding during installation.
And (3) complete battery replacement process: before the electric engineering machinery runs out of electricity, the electric engineering machinery runs to a set position, an external battery replacement facility grabs a hoisting ring 29 on a battery system frame 2, then the whole vehicle sends an unlocking command to a locking unit 13 and provides reverse voltage for an electric push rod 131, the electric push rod 131 pulls a prism pin 132 out of a locking block 27 and triggers a magnetic switch to send an unlocking completion signal, then the external battery replacement facility lifts the battery system frame 2 away from a rear vehicle frame 1 through the hoisting ring 29, then the external battery replacement facility lifts a new battery system frame 2 in a full-electricity state to the upper part of a bottom supporting plate 11, the limiting hole 211 firstly conducts guiding in the falling process of the new battery system frame 2, and as the battery system frame 2 further falls, a guiding limiting connecting hole 2611 on a high-voltage box of a battery replacement box is sleeved in and conducted by a guiding limiting connecting pin 311 on a base 3 of the battery replacement connector, as a result, the position of the new battery system frame 2 is shifted from the coarse adjustment to the fine adjustment. After the whole vehicle monitors that the first high-low voltage contact piece 312 is electrically connected with the second high-low voltage contact piece 2612, a locking command is sent to the locking unit 13, forward voltage is provided for the electric push rod 131, the electric push rod 131 pushes the prism pin 132 into the locking block 27, the locking position magnetic switch is triggered, and a locking completion signal is sent. Finally, the electrical construction machine is loaded with the fully charged battery system frame 2 and the operation is resumed.
The system adopts a reasonable design structure and reasonably arranges the position of the battery changing system on the rear frame, so that the battery changing box is not higher than the position of a rear window of a cab, and the view field of the cab is not influenced; meanwhile, the locking structure is simple and reliable, the battery replacement process is convenient, and the performance and the competitiveness of a host product are indirectly improved.
The above detailed description should not be construed as limiting the scope of the invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. The battery replacement system for the engineering machinery is characterized by comprising a rear frame, a battery replacement connector base and a battery system frame, wherein the battery system frame comprises a first part, a second part and a third part, the first part is arranged above the rear frame, the battery replacement connector base is arranged on the rear frame and is positioned below the first part, the second part and the third part are respectively positioned on two sides of the rear frame,
the first part comprises at least one layer of battery box frame, the second part comprises a battery high-voltage distribution box frame and a charging socket frame, the third part comprises a liquid cooling unit frame,
a battery locking mechanism is arranged between the rear frame and the lower end of the first part, the battery locking mechanism comprises a locking unit and a limiting unit, the locking unit comprises a plurality of telescopically arranged locking pins and a plurality of corresponding locking holes, the locking pins are arranged on the rear frame, and the locking holes are arranged on the lower end surface of the first part; the moving directions of the locking pins are coplanar and different;
the limiting unit comprises a plurality of limiting pins and a plurality of corresponding limiting holes, the limiting pins are arranged on the rear frame, and the limiting holes are arranged on the lower end surface of the first part;
the length extending direction of the limiting pins is perpendicular to the plane where the moving directions of the locking pins are located.
2. The battery replacement system for the engineering machinery as claimed in claim 1, wherein a plurality of bottom support plates are arranged on the rear frame, the upper surfaces of the bottom support plates are flush, and the limit pins are arranged on the bottom support plates in a one-to-one correspondence and respectively extend upwards; the lower surface of the bottom supporting plate is respectively provided with an electric push rod, and the locking pins are prism pins which are respectively arranged at the end parts of the corresponding electric push rods.
3. The power conversion system for engineering machinery as claimed in claim 2, wherein the height of the limit pins protruding from the upper surface of the bottom supporting plate is different.
4. The battery replacement system for engineering machinery as claimed in claim 1, wherein the battery replacement connector base comprises a connecting plate, a spring assembly, a mounting plate and a plurality of battery replacement connector sockets, the connecting plate is mounted on the rear frame, the mounting plate is mounted on the connecting plate through the spring assembly, and the plurality of battery replacement connector sockets are disposed on the mounting plate.
5. The power switching system for engineering machinery according to claim 4, wherein a power switching high-voltage power distribution box frame is arranged below the battery box frame body, a power switching high-voltage power distribution box is arranged in the power switching high-voltage power distribution box frame, and a power switching connector plug matched with the power switching connector socket is arranged on the power switching high-voltage power distribution box.
6. The power replacing system for engineering machinery as claimed in claim 5, wherein the power replacing connector socket is provided with a first high-low voltage contact piece and at least two guiding limiting connecting pins, the power replacing connector plug is provided with a second high-low voltage contact piece and at least two guiding limiting connecting holes, the first high-low voltage contact piece is matched with the second high-low voltage contact piece, and the at least two guiding limiting connecting pins are matched with the at least two guiding limiting connecting holes.
7. The battery replacement system for construction machinery as claimed in claim 1, wherein the first portion comprises a plurality of layers of battery case frames, and the battery case frames are stacked one on another and connected by a connecting member.
8. The battery replacement system for the engineering machinery as claimed in claim 1 or 7, wherein the battery box frame comprises a bottom plate and side enclosing plates extending from the periphery of the bottom plate to the same side, and the bottom plate is provided with a battery box mounting hole.
9. The power conversion system for construction machinery as claimed in claim 1, wherein a plurality of hood brackets are provided at a side portion of the first portion, and a plurality of lifting rings are provided at an upper portion of the first portion.
10. The power replacing system for engineering machinery as claimed in claim 1, wherein a plurality of locking blocks are arranged on a lower end face of the first portion, the locking blocks are C-shaped, and the locking holes are formed at openings of the locking blocks.
11. The electrical swapping system for construction machinery as claimed in claim 1, wherein the direction of movement of at least one of the locking pins is perpendicular to the direction of movement of at least one other locking pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210274954.6A CN114683948A (en) | 2022-03-21 | 2022-03-21 | Electricity conversion system for engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210274954.6A CN114683948A (en) | 2022-03-21 | 2022-03-21 | Electricity conversion system for engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114683948A true CN114683948A (en) | 2022-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210274954.6A Pending CN114683948A (en) | 2022-03-21 | 2022-03-21 | Electricity conversion system for engineering machinery |
Country Status (1)
| Country | Link |
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| CN (1) | CN114683948A (en) |
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| CN115352314A (en) * | 2022-08-15 | 2022-11-18 | 一汽解放汽车有限公司 | Battery-replaceable vehicle |
| CN116691310A (en) * | 2023-08-08 | 2023-09-05 | 北京玖行智研交通科技有限公司 | Battery box assembly for electric vehicle |
| CN117183809A (en) * | 2023-09-07 | 2023-12-08 | 北京玖行智研交通科技有限公司 | Battery box for electric vehicle |
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|---|---|---|---|---|
| CN115352314A (en) * | 2022-08-15 | 2022-11-18 | 一汽解放汽车有限公司 | Battery-replaceable vehicle |
| CN116691310A (en) * | 2023-08-08 | 2023-09-05 | 北京玖行智研交通科技有限公司 | Battery box assembly for electric vehicle |
| CN117183809A (en) * | 2023-09-07 | 2023-12-08 | 北京玖行智研交通科技有限公司 | Battery box for electric vehicle |
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