CN109841895B - Low-temperature high-rate lithium iron phosphate power battery - Google Patents
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- CN109841895B CN109841895B CN201910148675.3A CN201910148675A CN109841895B CN 109841895 B CN109841895 B CN 109841895B CN 201910148675 A CN201910148675 A CN 201910148675A CN 109841895 B CN109841895 B CN 109841895B
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a low-temperature high-rate lithium iron phosphate power battery, relates to the technical field of battery equipment, and aims to solve the problems that a lithium iron phosphate battery pack in the prior art is troublesome in disassembly and inspection and the charging and discharging performance efficiency of most lithium iron phosphate batteries in a low-temperature environment is low. The battery box comprises a battery box base and is characterized in that a battery box side plate is arranged above the battery box base, side plate grids are arranged on two sides of the battery box side plate, a catching groove is formed in the top of each side plate grid, a spring handle is arranged inside the catching groove, a battery box main board is arranged at one end of the battery box side plate, an anode junction box is arranged on the outer surface of the battery box main board, an anode charging and discharging opening is formed in the outer surface of the anode junction box, a cathode junction box is arranged above the anode junction box, a cathode charging and discharging opening is formed in the outer surface of the cathode junction box, and a battery box top plate is arranged above the battery box main board.
Description
Technical Field
The invention relates to the technical field of battery equipment, in particular to a low-temperature high-rate lithium iron phosphate power battery.
Background
The lithium iron phosphate battery is a lithium ion battery using lithium iron phosphate as a positive electrode material. The anode material of the lithium ion battery mainly comprises lithium cobaltate, lithium manganate, lithium nickelate, ternary material, lithium iron phosphate and the like. Lithium cobaltate is a positive electrode material used by most lithium ion batteries at present; the battery is generally considered to be free of any heavy metal and rare metal, and is non-toxic and pollution-free. Therefore, the lithium battery is considered by the industry, which is mainly an environmental protection consideration, and the battery is listed in the 863 national high-tech development plan in the fifteen period, and becomes a project for national key support and encouragement of development. With the addition of WTO in china, the export volume of electric bicycles in china will increase rapidly, and electric bicycles entering europe and the united states of america have been required to be equipped with pollution-free batteries. However, as shown by experts, environmental pollution caused by lead-acid batteries mainly occurs in irregular production processes and recovery processing links of enterprises. Similarly, the lithium battery belongs to the new energy industry, but the lithium battery cannot avoid the problem of heavy metal pollution. Lead, arsenic, cadmium, mercury, chromium, etc. may be released into dust and water during processing of metallic materials. The battery itself is a chemical substance, so two kinds of pollution are possible to generate: firstly, the process excrement pollution in the production engineering; secondly, the battery after being scrapped is polluted.
However, the existing lithium iron phosphate battery pack is troublesome in the disassembly and inspection process, and the charging and discharging performance efficiency of most of lithium iron phosphate batteries in a low-temperature environment is low; therefore, the existing requirements are not met, and a low-temperature high-rate lithium iron phosphate power battery is provided for the lithium iron phosphate power battery.
Disclosure of Invention
The invention aims to provide a low-temperature high-rate lithium iron phosphate power battery, which solves the problems that the disassembly and inspection process of a lithium iron phosphate battery pack provided in the background technology is troublesome, and the charging and discharging performance efficiency of most lithium iron phosphate batteries in a low-temperature environment is low.
In order to achieve the purpose, the invention provides the following technical scheme: a low-temperature high-magnification lithium iron phosphate power battery comprises a battery box base, wherein a battery box side plate is arranged above the battery box base, side plate grids are arranged on two sides of the battery box side plate, a catching groove is arranged above the side plate grids, a spring handle is arranged inside the catching groove, a battery box main plate is arranged at one end of the battery box side plate, an anode wire collecting box is arranged on the outer surface of the battery box main plate, an anode charging and discharging opening is arranged on the outer surface of the anode wire collecting box, a cathode wire collecting box is arranged above the anode wire collecting box, a cathode charging and discharging opening is arranged on the outer surface of the cathode wire collecting box, a battery box top plate is arranged above the battery box main plate, a battery box cover plate is arranged above the battery box top plate, fixed sliding sheets are arranged on the upper side and the lower side of the outer surface of the battery box cover plate, and the number of the fixed sliding sheets is four, the inside of fixed gleitbretter is provided with the knot pole, the one end of fixed gleitbretter is provided with fixed locking plate, the surface of fixed locking plate is provided with the spring catch, the inboard of battery box curb plate is provided with the battery standing groove, the both sides of battery standing groove bottom all are provided with the rubber anticollision pad, and the rubber anticollision pad has four, the outside of battery standing groove is provided with insulating flame retardant coating, the outside of insulating flame retardant coating is provided with the constant temperature layer.
Preferably, the inside of battery standing groove is provided with the lithium iron phosphate battery, and the lithium iron phosphate battery has a plurality ofly, the outside of lithium iron phosphate battery is provided with the battery fixed strip, and the battery fixed strip has two, the battery fixed strip surface is provided with elasticity turn-buckle, and the elasticity turn-buckle has two, the one end of lithium iron phosphate battery is provided with the negative pole end, the surface of negative pole end is provided with the negative pole terminal, the top of negative pole end is provided with anodal end, the surface of anodal end is provided with anodal terminal, one side of lithium iron phosphate battery is provided with the baffle, the one end of baffle is provided with slotted splicing, and the groove splicing has a plurality ofly.
Preferably, the elasticity is detained soon and is passed through the thread groove with the battery fixed strip and is connected, lithium iron phosphate battery and negative terminal and positive terminal fixed connection, bolted connection is passed through with the groove splicing to negative terminal and positive terminal, the anodal end passes through the draw-in groove with the positive terminal and is connected, the negative terminal passes through the draw-in groove with the negative terminal and is connected.
Preferably, the inside of lithium iron phosphate battery is provided with electrolyte, the inside of electrolyte is provided with nanometer particle size lithium iron phosphate positive pole piece, one side of nanometer particle size lithium iron phosphate positive pole piece is provided with the diaphragm, the opposite side of diaphragm is provided with granule graphite negative pole piece, the top of granule graphite negative pole piece is provided with the battery end cover, the inside of battery end cover is provided with insulating seal plate, the below of insulating seal plate is provided with the electrolyte sprue, the top of insulating seal plate is provided with the miniature resistance piece.
Preferably, the lithium iron phosphate positive electrode block with the nano particle size is fixedly connected with the lithium iron phosphate battery, the granular graphite negative electrode block is fixedly connected with the lithium iron phosphate battery, the insulating sealing plate is connected with the battery end cover through a screw, and the miniature resistor disc is welded with the lithium iron phosphate battery.
Preferably, the battery box base is connected with the battery box side plate through a bolt, the battery box side plate is connected with the battery box main plate through a sliding groove, and the spring handle is rotatably connected with the fastening groove through a spring rotating shaft.
Preferably, the battery box mainboard is connected with the negative pole line concentration box and the positive pole line concentration box through screws, the negative pole line concentration box is fixedly connected with the negative pole charging and discharging port, and the positive pole line concentration box is fixedly connected with the positive pole charging and discharging port.
Preferably, the fixed locking plate is connected with the top plate of the battery box through a screw, the fixed sliding sheet is connected with the cover plate of the battery box through a screw, and the buckling rod is connected with the fixed sliding sheet through a sliding rail in a sliding manner.
Preferably, the rubber crash pad passes through the adhesive with the battery standing groove and is connected, the insulating flame retardant coating passes through the adhesive with the thermostatic layer and is connected, the thermostatic layer passes through the adhesive with the battery box curb plate and is connected.
Compared with the prior art, the invention has the beneficial effects that:
1. the lithium iron phosphate anode block with the nano-particle size is adopted, the low-temperature characteristic of the whole battery is adjusted through the particle size, the resistance and the AB plane axis of the lithium iron phosphate anode block, the diameter distance between the lithium iron phosphate with the nano-particle size is adjusted during the treatment process, the migration path is shortened, and the low-temperature discharge performance is improved;
2. according to the invention, the battery is placed in the battery placing groove, then the circuit is externally connected to the junction box for use, when the battery box needs to be taken out for maintenance, only the cover plate of the battery box needs to be opened, and the main board can be taken out together for inspection and maintenance without disassembling the circuit because the main board and the side plate are in sliding connection.
Drawings
FIG. 1 is an overall front view of the present invention;
FIG. 2 is an overall top view of the present invention;
fig. 3 is a schematic view of the internal structure of the battery placement groove of the present invention;
FIG. 4 is a schematic structural diagram of a lithium iron phosphate battery according to the present invention;
fig. 5 is a schematic diagram of the internal structure of the lithium iron phosphate battery according to the present invention.
In the figure: 1. a battery box base; 2. a battery box main board; 3. a positive terminal collector; 4. a negative pole wire collecting box; 5. a positive electrode charging and discharging port; 6. a negative electrode charging and discharging port; 7. a battery box side plate; 8. a side plate grid; 9. buckling grooves; 10. a battery box top plate; 11. a battery box cover plate; 12. fixing the sliding sheet; 13. fixing the locking plate; 14. a spring catch; 15. a buckle rod; 16. a battery placement groove; 17. a constant temperature layer; 18. an insulating fire-resistant layer; 19. a rubber crash pad; 20. a lithium iron phosphate battery; 21. a battery fixing strip; 22. loosening and tightening the rotary buckle; 23. a negative terminal; 24. a positive terminal; 25. a positive terminal; 26. a negative terminal; 27. a slot tab; 28. a partition plate; 29. a lithium iron phosphate anode block with a nano-particle size; 30. an electrolyte; 31. a diaphragm; 32. a granular graphite negative electrode block; 33. a battery end cap; 34. a miniature resistor disc; 35. an insulating sealing plate; 36. an electrolyte injection port; 37. a spring handle.
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.
Referring to fig. 1-5, an embodiment of the present invention is shown: a low-temperature high-magnification lithium iron phosphate power battery comprises a battery box base 1 and a supporting function, wherein a battery box side plate 7 is arranged above the battery box base 1 to protect the battery and avoid collision, side plate grids 8 are arranged on two sides of the battery box side plate 7 to ventilate and radiate heat, a catching groove 9 is arranged above the side plate grids 8, a spring handle 37 is arranged inside the catching groove 9, a user can move and transport the battery through the spring handle 37, a battery box main plate 2 is arranged at one end of the battery box side plate 7 and can be detached from the battery box side plate 7, an anode wire collecting box 3 is arranged on the outer surface of the battery box main plate 2 and is connected with an anode circuit of a battery pack, an anode charging and discharging port 5 is arranged on the outer surface of the anode wire collecting box 3 to facilitate charging and discharging, a cathode wire collecting box 4 is arranged above the anode wire collecting box 3 and is connected with a cathode circuit of the battery pack, the outer surface of the negative pole wire collecting box 4 is provided with a negative pole charging and discharging port 6 which is convenient for charging and discharging, a battery box top plate 10 is arranged above a battery box main plate 2 and used for fixing a battery box side plate 7, a battery box cover plate 11 is arranged above the battery box top plate 10 and used for facilitating the installation and the disassembly of the battery, the upper side and the lower side of the outer surface of the battery box cover plate 11 are respectively provided with a fixed slip sheet 12 and a containing buckle bar 15, the number of the fixed slip sheets 12 is four, the inside of each fixed slip sheet 12 is provided with the buckle bar 15 and can be combined and connected with the spring lock keys 14 so as to fix the battery box cover plate 11, one end of each fixed slip sheet 12 is provided with a fixed locking sheet 13, the outer surface of the fixed locking sheet 13 is provided with the spring lock keys 14 and the fixed buckle bar 15, the inner side of the battery box side plate 7 is provided with a battery placing groove 16 which is convenient for placing the battery, and two sides of the bottom of the battery placing groove 16 are both provided with rubber anti-collision pads 19, avoid the battery to strike the inner wall, and rubber crash pad 19 has four, and the outside of battery standing groove 16 is provided with insulating flame retardant coating 18, prevents that the electric leakage from catching fire, ensures user's personal safety, and the outside of insulating flame retardant coating 18 is provided with thermostatic layer 17, isolated temperature. Avoiding too low an internal temperature.
Further, a plurality of lithium iron phosphate batteries 20 are arranged inside the battery placement groove 16, a plurality of lithium iron phosphate batteries 20 are arranged, battery fixing strips 21 are arranged outside the lithium iron phosphate batteries 20 to fix the lithium iron phosphate batteries 20, two battery fixing strips 21 are provided, two elastic buckles 22 are arranged on the outer surface of each battery fixing strip 21 to adjust the length of each battery fixing strip 21, two elastic buckles 22 are provided, one end of each lithium iron phosphate battery 20 is provided with a negative terminal 23 to protect the joint of the negative terminal 26, the outer surface of the negative terminal 23 is provided with a negative terminal 26, a positive terminal 24 is arranged above the negative terminal 23 to protect the joint of the positive terminal 25, the outer surface of the positive terminal 24 is provided with a positive terminal 25, a partition plate 28 is arranged on one side of each lithium iron phosphate battery 20 to keep the distance between the batteries, and one end of the partition plate 28 is provided with a groove splicing piece 27, the positive and negative electrodes are connected between the batteries, and a plurality of groove tabs 27 are provided.
Further, elasticity turn buckle 22 passes through the thread groove with battery fixed strip 21 and is connected, and the person of facilitating the use uses, and lithium iron phosphate battery 20 and negative terminal 26 and positive terminal 25 fixed connection, and negative terminal 26 and positive terminal 25 pass through bolted connection with groove splicing 27, and anodal end 24 passes through the draw-in groove with positive terminal 25 and is connected, and negative end 23 passes through the draw-in groove with negative terminal 26 and is connected, plays the guard action.
Further, the inside of lithium iron phosphate battery 20 is provided with electrolyte 30, the electric capacity is improved, the inside of electrolyte 30 is provided with nanometer particle size lithium iron phosphate positive pole piece 29, improve the low temperature discharge performance, one side of nanometer particle size lithium iron phosphate positive pole piece 29 is provided with diaphragm 31, separate the bipolar electrode, the opposite side of diaphragm 31 is provided with granule graphite negative pole piece 32, reduce impedance, the top of granule graphite negative pole piece 32 is provided with battery end cover 33, battery end cover 33's inside is provided with insulating seal plate 35, play the guard action, the below of insulating seal plate 35 is provided with electrolyte sprue 36, the injection of electrolyte 30 of being convenient for, the top of insulating seal plate 35 is provided with miniature resistance piece 34, change resistance.
Further, the lithium iron phosphate positive pole block 29 with the nanometer particle size and the lithium iron phosphate battery 20 are fixedly connected, stability is enhanced, the particle graphite negative pole block 32 is fixedly connected with the lithium iron phosphate battery 20, the insulating sealing plate 35 is connected with the battery end cover 33 through a screw, the interior of the battery is convenient to inspect, the miniature resistance card 34 is connected with the lithium iron phosphate battery 20 in a welding mode, and the charging cross current ratio is adjusted.
Further, battery box base 1 passes through bolted connection with battery box curb plate 7, and the installation of being convenient for, battery box curb plate 7 passes through the spout with battery box mainboard 2 and is connected, convenient to use, and spring handle 37 rotates through the spring pivot with catching groove 9 to be connected, convenient transportation use.
Further, battery box mainboard 2 passes through bolted connection with negative pole terminal box 4 and anodal terminal box 3, and convenient to use person installs and dismantles, and 6 fixed connection are put to negative pole terminal box 4 and negative pole charge, reinforcing stability, and anodal terminal box 3 fills with the positive pole and puts 5 fixed connection.
Further, fixed locking plate 13 passes through bolted connection with battery box roof 10, and fixed gleitbretter 12 passes through bolted connection with battery box apron 11, and buckle bar 15 passes through slide rail sliding connection with fixed gleitbretter 12, is convenient for fix the apron.
Further, rubber crashproof pad 19 passes through the adhesive with battery standing groove 16 and is connected, provides the protection to the battery, and insulating flame retardant coating 18 passes through the adhesive with constant temperature layer 17 and is connected, prevents that the battery electric leakage from being fired and causing the unnecessary loss, and constant temperature layer 17 passes through the adhesive with battery box curb plate 7 and is connected, avoids inside temperature to hang down excessively.
The working principle is as follows: when in use, the lithium iron phosphate battery 20 is placed in the battery placing groove 16, then the line on the positive terminal 25 is connected with the positive terminal box 3, the line on the negative terminal 26 is connected with the negative terminal box 4, the battery can be charged and discharged through two charging and discharging ports after connection, when in charging, the lithium iron phosphate positive block 29 with nanometer particle size releases lithium ions, the lithium ions penetrate through the diaphragm 31 through the electrolyte 30 and enter the granular graphite negative block 32, when in discharging, the lithium ions in the negative electrode are transferred to the positive electrode through the diaphragm, the lithium iron phosphate positive block 29 with nanometer particle size selects the nanometer particle size with the diameter of one hundred to two hundred as a base material, thereby shortening the distance between the particles, so that the high-efficiency discharging amount can be kept even in a low-temperature environment, and meanwhile, the bottom of the lithium battery 20 is provided with the miniature resistance sheet of iron phosphate 34, the micro resistance sheet 34 can effectively control and adjust the constant current voltage during charging, so that the cross current ratio is kept at a value between 0.5 and 1, and the value can ensure the efficiency of the negative electrode in storing electric energy, thereby ensuring the efficiency of absorbing and storing electric energy of the granular graphite negative electrode block 32 in a low-temperature environment.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides a low temperature high magnification lithium iron phosphate power battery, includes battery box base (1), its characterized in that: a battery box side plate (7) is arranged above the battery box base (1), side plate grids (8) are arranged on two sides of the battery box side plate (7), a catching groove (9) is arranged above the side plate grids (8), a spring handle (37) is arranged inside the catching groove (9), a battery box main board (2) is arranged at one end of the battery box side plate (7), an anode wire collecting box (3) is arranged on the outer surface of the battery box main board (2), an anode charging and discharging opening (5) is arranged on the outer surface of the anode wire collecting box (3), a cathode wire collecting box (4) is arranged above the anode wire collecting box (3), a cathode charging and discharging opening (6) is arranged on the outer surface of the cathode wire collecting box (4), a battery box top plate (10) is arranged above the battery box main board (2), a battery box cover plate (11) is arranged above the battery box top plate (10), the battery box cover plate structure is characterized in that the upper side and the lower side of the outer surface of the battery box cover plate (11) are respectively provided with a fixed slip sheet (12), the number of the fixed slip sheets (12) is four, the inner part of each fixed slip sheet (12) is provided with a buckle rod (15), one end of each fixed slip sheet (12) is provided with a fixed locking plate (13), the outer surface of each fixed locking plate (13) is provided with a spring locking key (14), the inner side of the battery box side plate (7) is provided with a battery placing groove (16), the two sides of the bottom of the battery placing groove (16) are respectively provided with a rubber anti-collision pad (19), the number of the rubber anti-collision pads (19) is four, the outer side of the battery placing groove (16) is provided with an insulating fireproof layer (18), the outer side of the insulating fireproof layer (18) is provided with a constant temperature layer (17), the battery box base (1) is connected with the battery box side plate (7) through bolts, and the battery box side plate (7) is connected with the battery box main plate (2) through a sliding groove, the spring handle (37) is rotatably connected with the buckling groove (9) through a spring rotating shaft.
2. The low-temperature high-rate lithium iron phosphate power battery of claim 1, characterized in that: a plurality of lithium iron phosphate batteries (20) are arranged in the battery placing groove (16), a battery fixing strip (21) is arranged on the outer side of the lithium iron phosphate battery (20), two battery fixing strips (21) are provided, the outer surface of each battery fixing strip (21) is provided with an elastic rotary buckle (22), two elastic turnbuckles (22) are arranged, one end of the lithium iron phosphate battery (20) is provided with a negative terminal (23), a negative terminal (26) is arranged on the outer surface of the negative end (23), a positive end (24) is arranged above the negative end (23), the outer surface of the positive terminal (24) is provided with a positive terminal (25), one side of the lithium iron phosphate battery (20) is provided with a separator (28), one end of the partition plate (28) is provided with a plurality of groove connecting pieces (27).
3. The low-temperature high-rate lithium iron phosphate power battery of claim 2, characterized in that: elasticity turn-buckle (22) are connected through the thread groove with battery fixed strip (21), lithium iron phosphate battery (20) and negative terminal (26) and positive terminal (25) fixed connection, bolted connection is passed through with groove splicing (27) in negative terminal (26) and positive terminal (25), anodal end (24) are connected through the draw-in groove with positive terminal (25), negative end (23) are connected through the draw-in groove with negative terminal (26).
4. The low-temperature high-rate lithium iron phosphate power battery of claim 2, characterized in that: the inside of lithium iron phosphate battery (20) is provided with electrolyte (30), the inside of electrolyte (30) is provided with nanometer particle size lithium iron phosphate positive pole piece (29), one side of nanometer particle size lithium iron phosphate positive pole piece (29) is provided with diaphragm (31), the opposite side of diaphragm (31) is provided with granule graphite negative pole piece (32), the top of granule graphite negative pole piece (32) is provided with battery end cover (33), the inside of battery end cover (33) is provided with insulating seal board (35), the below of insulating seal board (35) is provided with electrolyte sprue (36), the top of insulating seal board (35) is provided with miniature resistance piece (34).
5. The low-temperature high-rate lithium iron phosphate power battery according to claim 4, characterized in that: nanometer particle size lithium iron phosphate positive pole piece (29) and lithium iron phosphate battery (20) fixed connection, granule graphite negative pole piece (32) and lithium iron phosphate battery (20) fixed connection, insulating seal board (35) pass through the screw connection with battery end cover (33), miniature resistance card (34) and lithium iron phosphate battery (20) welded connection.
6. The low-temperature high-rate lithium iron phosphate power battery of claim 1, characterized in that: the low-temperature high-rate lithium iron phosphate power battery of claim 1, characterized in that: battery box mainboard (2) pass through the screw connection with negative pole line concentration box (4) and anodal line concentration box (3), mouthful (6) fixed connection is put to negative pole line concentration box (4) and negative pole charge, mouthful (5) fixed connection is put to anodal line concentration box (3) and anodal charge.
7. The low-temperature high-rate lithium iron phosphate power battery of claim 1, characterized in that: fixed locking plate (13) and battery box roof (10) pass through the screw connection, fixed gleitbretter (12) pass through the screw connection with battery box apron (11), buckle pole (15) and fixed gleitbretter (12) pass through slide rail sliding connection.
8. The low-temperature high-rate lithium iron phosphate power battery of claim 1, characterized in that: rubber crash pad (19) pass through the adhesive with battery standing groove (16) and are connected, insulating flame retardant coating (18) pass through the adhesive with thermostatted blanket (17) and are connected, thermostatted blanket (17) pass through the adhesive with battery box curb plate (7) and are connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910148675.3A CN109841895B (en) | 2019-02-28 | 2019-02-28 | Low-temperature high-rate lithium iron phosphate power battery |
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| CN201910148675.3A CN109841895B (en) | 2019-02-28 | 2019-02-28 | Low-temperature high-rate lithium iron phosphate power battery |
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| CN109841895A CN109841895A (en) | 2019-06-04 |
| CN109841895B true CN109841895B (en) | 2021-12-24 |
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| CN103715452A (en) * | 2013-12-19 | 2014-04-09 | 山东威能环保电源有限公司 | Low-temperature lithium iron phosphate lithium-ion power battery |
| CN204243092U (en) * | 2014-12-12 | 2015-04-01 | 安徽江淮汽车股份有限公司 | A kind of storage battery access cover device |
| CN206961882U (en) * | 2017-05-10 | 2018-02-02 | 宁波动一电器有限公司 | A kind of fast disassembly type battery bag |
| CN107302071A (en) * | 2017-07-19 | 2017-10-27 | 江苏正昀新能源技术有限公司 | A kind of hermetically sealed lithium battery dynamical system of slide rail type |
| CN107978710A (en) * | 2017-11-30 | 2018-05-01 | 中山市榄商置业发展有限公司 | A kind of battery of electric vehicle mounting structure |
| CN208256762U (en) * | 2018-05-22 | 2018-12-18 | 福州市长乐区三互信息科技有限公司 | A kind of new energy car battery case being conveniently replaceable battery |
| CN208507783U (en) * | 2018-08-01 | 2019-02-15 | 天津精工华晖制版技术开发有限公司 | A kind of electric carving battery cupboard |
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| CN109841895A (en) | 2019-06-04 |
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