CN216872156U - Battery box, power battery and electric vehicle - Google Patents
Battery box, power battery and electric vehicle Download PDFInfo
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- CN216872156U CN216872156U CN202220304658.1U CN202220304658U CN216872156U CN 216872156 U CN216872156 U CN 216872156U CN 202220304658 U CN202220304658 U CN 202220304658U CN 216872156 U CN216872156 U CN 216872156U
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Abstract
The utility model relates to the technical field of batteries, and provides a battery box body, a power battery and an electric vehicle. Wherein, the battery box includes: the base is internally provided with a liquid cooling channel for cooling liquid to flow and also comprises a liquid cooling pipeline connected with the liquid cooling channel; the connecting part is connected with the base, protrudes out of the top of the base and is arranged along the edge of the base; the coaming is arranged on the outer peripheral side of the base in a surrounding manner and is connected with the connecting component; the bottom plate sets up in the bottom of base, and the bottom plate is connected with the bounding wall, and the bottom plate encloses into the accommodation space that is used for placing electric core with the bounding wall. According to the battery box body, the battery core can be cooled, the effect of supporting and bearing can be achieved, and a closed working environment can be provided for the battery core, so that all conditions of normal work of the power battery can be met through one battery box, two layers of box bodies do not need to be arranged, and the weight of the power battery is further reduced.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery box body, a power battery and an electric vehicle.
Background
In the prior art, a power battery of an electric vehicle generally includes a steel box, a finished PACK, a water chiller, a BUD, an electrical connector, and other components, wherein the finished PACK, the water chiller, the BUD, and the electrical connector are all disposed in the steel box, and the steel box is mainly used for supporting and carrying. And the finished PACK is provided with a box body used for sealing the electric core, and a steel box body is additionally arranged, so that the weight of the power battery is increased, and the energy consumption of the electric vehicle is increased.
SUMMERY OF THE UTILITY MODEL
The utility model provides a battery box body, a power battery and an electric vehicle, which are used for overcoming the defect that the power battery in the prior art usually comprises two layers of box bodies and is heavy, and the effect of reducing the weight of the power battery is realized.
The utility model provides a battery box, comprising:
the base is internally provided with a liquid cooling channel for cooling liquid to flow, and the base also comprises a liquid cooling pipeline connected with the liquid cooling channel;
the connecting part is connected with the base, protrudes out of the top of the base and is arranged along the edge of the base;
a surrounding plate surrounding the outer periphery of the base and connected with the connecting part;
the bottom plate is arranged at the bottom of the base and connected with the enclosing plate, and the bottom plate and the enclosing plate enclose a containing space for containing the battery cell.
According to the battery box body provided by the utility model, the base comprises a frame and a liquid cooling plate connected with the frame;
the connecting part is connected with the frame, and the liquid cooling pipeline is connected with the liquid cooling plate.
According to the battery box body provided by the utility model, the frame comprises longitudinal beams and cross beams;
the number of the longitudinal beams is two, the two longitudinal beams are respectively arranged on two sides of the liquid cooling plate, and the longitudinal beams are connected with the liquid cooling plate;
the crossbeam is used for installing the battery cell, the both ends of crossbeam are connected with two longerons respectively, just the crossbeam with the liquid cooling is connected mutually.
According to the battery box body provided by the utility model, the longitudinal beam and the liquid cooling plate are arranged into an extrusion integrated structure, or the longitudinal beam is connected with the liquid cooling plate in a welding manner, or the longitudinal beam is detachably connected with the liquid cooling plate;
the crossbeam with liquid cooling plate welded connection, perhaps the crossbeam with liquid cooling plate detachably is connected.
According to the battery box provided by the utility model, the connecting part is provided with a through hole for the threaded fastener to pass through, and the through hole extends along the direction from the top to the bottom of the base.
According to the battery box body provided by the utility model, the top and the bottom of the battery box body are respectively provided with the positioning bulges and the positioning grooves for the positioning bulges to extend into.
According to the battery box body provided by the utility model, the connecting part comprises a connecting column and a reinforcing rib plate;
the number of the connecting columns is multiple, the connecting columns are distributed along the edge of the base, each connecting column is provided with the reinforcing rib plate, one end of each reinforcing rib plate is connected with the connecting column, and the other end of each reinforcing rib plate is connected with the base.
According to the battery box body provided by the utility model, the battery box body further comprises a sealing element, one end, away from the bottom plate, of the enclosing plate is folded inwards to form a flange, and the sealing element is arranged on the flange.
According to the battery box body provided by the utility model, the coaming and the bottom plate are arranged into a resin integrated molding structure;
or the coaming is made of glass fiber reinforced plastic, and the bottom plate is made of glass fiber reinforced plastic.
According to the battery box body provided by the utility model, the battery box body further comprises an electrical appliance wiring bin, the electrical appliance wiring bin is arranged in the accommodating space, and the electrical appliance wiring bin is connected with the base.
The utility model also provides a power battery, which comprises a fixed guide assembly, a battery module and a hoisting assembly which are sequentially arranged from bottom to top;
the battery module comprises a plurality of battery boxes, each battery box is internally provided with an electric core, and the plurality of battery boxes are sequentially arranged from bottom to top.
The power battery further comprises a connecting bolt and a connecting nut in threaded fit with the connecting bolt, and the connecting bolt penetrates through the hoisting assembly, the battery module and the fixed guide assembly and is matched with the connecting nut.
The utility model also provides an electric vehicle which comprises the battery box body or the power battery.
According to the battery box body provided by the utility model, the liquid cooling channel and the liquid cooling pipeline are arranged, and the temperature of the battery cell arranged in the battery box body can be regulated by utilizing the cooling unit. During the use, the range upon range of setting of a plurality of battery box, the bottom plate of the battery box on upper portion covers the top of the battery box of lower part promptly to can seal the accommodation space who places electric core, provide confined operational environment for electric core, avoid electric core to receive the damage. Meanwhile, the base and the connecting part can bear loads generated by stacking of a plurality of battery boxes, external impacts and other loads.
According to the battery box body, the battery core can be cooled, the effect of supporting and bearing can be achieved, and a closed working environment can be provided for the battery core, so that all conditions of normal work of the power battery can be met through one battery box, two layers of box bodies are not needed, and the weight of the power battery is reduced.
Further, the power battery and the electric vehicle provided by the utility model comprise the battery box body, so that all the advantages of the battery box body are achieved at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural view of a battery case provided in an embodiment of the present invention;
fig. 2 is a schematic view of a connection structure of a base and a connection part provided in an embodiment of the present invention;
FIG. 3 is a cross-sectional view of the view shown in FIG. 2;
FIG. 4 is an isometric view of the view shown in FIG. 2;
fig. 5 is a schematic structural diagram of a power battery provided in an embodiment of the present invention;
FIG. 6 is an additional angular view of the view shown in FIG. 5;
fig. 7 is an enlarged view of a portion i in fig. 6.
Reference numerals:
1. a liquid cooling channel; 2. a liquid cooling pipeline; 3. enclosing plates; 4. a liquid-cooled plate; 5. a stringer; 6. a cross beam; 7. positioning the projection; 8. a positioning groove; 9. connecting columns; 10. reinforcing rib plates; 11. a flange; 12. a seal member; 13. an electrical appliance wiring bin; 14. fixing a guide assembly; 15. hoisting the assembly; 16. a connecting bolt; 17. a connecting nut; 18. a battery box body.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The battery case 18 provided in the embodiment of the present invention is described below with reference to fig. 1 to 7.
Specifically, the battery case 18 includes a base, a connecting member, a shroud 3, and a bottom plate.
Wherein, the inside of base is equipped with the liquid cooling passageway 1 that supplies coolant liquid to flow, coolant liquid include but not limited to water. The base also includes a liquid cooling line 2 connected to the liquid cooling channel 1. The liquid cooling pipeline 2 is used for being connected with a cooling unit.
The connecting part is connected with the base, the connecting part protrudes out of the top of the base, and the connecting assembly is arranged along the edge of the base. Specifically, the connecting member and the base constitute a support skeleton.
The apron 3 surrounds the outer periphery of the base, and the apron 3 is connected with the connecting part.
The bottom plate sets up in the bottom of base to the bottom plate is connected with bounding wall 3. The bottom plate and the coaming 3 enclose a containing space for placing the battery core.
In the battery box 18 provided in the embodiment of the present invention, by providing the liquid cooling channel 1 and the liquid cooling pipeline 2, the battery cell disposed in the battery box 18 can be temperature-regulated by using the cooling unit. During the use, the range upon range of setting of a plurality of battery box 18, the battery box 18's on upper portion bottom plate lid fits the battery box 18's of lower part promptly top to can seal the accommodation space who places electric core, provide confined operational environment for electric core, avoid electric core to receive the damage. And at the same time, the base and the connecting member can bear the load generated by stacking the plurality of battery cases 18, and the load of external impact and the like.
With such arrangement, the battery box 18 provided in the embodiment of the present invention can cool the battery core, can play a role in supporting and bearing, and can provide a closed working environment for the battery core, so that all conditions for normal operation of the power battery can be met by one battery box, and two layers of boxes do not need to be provided, thereby reducing the weight of the power battery.
In some embodiments provided herein, the base includes a frame and a cold plate 4 coupled to the frame. The connecting part is connected with the frame, and the liquid cooling pipeline 2 is connected with the liquid cooling plate 4. So set up, the simple structure of base is convenient for process production.
Alternatively, the liquid-cooling plate 4 may be made of an extruded section, and the end portion is sealed by welding to form an internal hollow structure, and the hollow structure constitutes the liquid-cooling passage 1. Then, liquid cooling pipelines are welded at two ends of the liquid cooling plate 4, and cooling liquid flows in the liquid cooling plate 4 and can exchange heat with the battery cell, so that heat generated by the battery cell is taken away in time. Of course, the liquid cooling plate 4 may also be made of an aluminum plate by stamping and tailor welding.
Referring to fig. 4, in particular, the frame comprises longitudinal beams 5 and transverse beams 6. The longitudinal beams 5 and the cross beams 6 can be made of aluminum alloy tailor welded, steel plate tailor welded or cast aluminum.
The number of longerons 5 sets up to two, and two longerons 5 set up respectively in the both sides of liquid cooling board 4, and longeron 5 is connected with liquid cooling board 4.
The cross beam 6 is used for mounting the battery cell, for example, the battery cell may be connected with the cross beam 6 by a threaded fastener. The both ends of crossbeam 6 are connected with two longerons 5 respectively, and crossbeam 6 is connected with liquid cooling plate 4. For example, the cross member 6 is connected to the upper surface of the liquid cooling plate 4.
So set up, longeron 5, crossbeam 6 and liquid cooling plate 4 form an overall structure for the simple structure of base is compact.
Alternatively, the number of the cross beams 6 may be three, and the three cross beams 6 are distributed in sequence along the length direction of the longitudinal beam 5.
In some embodiments provided by the utility model, the longitudinal beam 5 and the liquid cooling plate 4 are arranged in an extrusion integral molding structure. So set up, longeron 5 is higher with the joint strength of liquid cooling plate 4 for the wholeness ability of base is better.
Of course, the longitudinal beam 5 and the liquid cooling plate 4 are not limited to the above-mentioned extrusion integral molding structure, for example, the longitudinal beam 5 and the liquid cooling plate 4 may also be connected by welding. Alternatively, the longitudinal beam 5 and the liquid cooling plate 4 may be detachably connected. For example, the longitudinal beam 5 and the liquid cooling plate 4 may be detachably connected by a screw fastener such as a bolt.
In some embodiments provided by the utility model, the beam 6 is welded to the liquid cooling plate 4.
Of course, the beam 6 is not limited to being connected to the liquid cooling plate 4 by welding, for example, the beam 6 is detachably connected to the liquid cooling plate 4. For example, the cross member 6 and the cold plate 4 may be detachably connected by a screw fastener such as a bolt.
Alternatively, the cross member 6 and the longitudinal member 5 may be welded or detachably connected by a screw fastener such as a bolt.
In some embodiments provided by the present invention, the connecting member is provided with a through hole for passing the threaded fastener therethrough, the through hole extending in a top-to-bottom direction of the base.
By providing the through-holes in the coupling member, after a plurality of battery cases 18 are stacked, threaded fasteners such as coupling bolts 16 can be inserted through the through-holes in the coupling member. The connection bolt 16 is screwed to the connection nut 17 after sequentially passing through the plurality of battery cases 18, thereby fixing the plurality of stacked battery cases 18.
Referring to fig. 3, in some embodiments provided by the present invention, the battery case 18 is provided at the top and bottom thereof with a positioning protrusion 7 and a positioning groove 8 into which the positioning protrusion 7 is inserted, respectively.
Through setting up location arch 7 and positioning groove 8, when a plurality of battery box 18 piled up, the battery box 18 of upper strata and the battery box 18 of lower floor can fix a position each other through location arch 7 and positioning groove 8 to prevent battery box 18 drunkenness, and then improve power battery's overall stability.
Referring to fig. 3, further, the first end of the connecting part protrudes from the top surface of the base, and the positioning protrusion 7 may be disposed at the first end of the connecting part. The second end of the connecting part penetrates out of the bottom surface of the base, and the positioning groove 8 is arranged at the second end of the connecting part. Alternatively, the positioning groove 8 may be provided directly on the bottom surface of the base plate when the connecting member does not pass through the bottom surface of the side member 5.
In some embodiments provided by the present invention, the connecting member comprises a connecting column 9 and a reinforcing web 10.
Wherein, the quantity of spliced pole 9 sets up to a plurality ofly, and a plurality of spliced poles 9 distribute along the border of base. For example, it may be distributed along the long edge or the peripheral edge of the base. Each connecting column 9 is provided with a reinforcing rib plate 10, one end of each reinforcing rib plate 10 is connected with the connecting column 9, and the other end of each reinforcing rib plate 10 is connected with the base. The connection strength of the connecting column 9 and the base can be improved and the bearing capacity of the connecting column 9 can be improved by arranging the reinforcing rib plates 10.
So set up, adapting unit's simple structure, the processing production of being convenient for.
Optionally, each longitudinal beam 5 is provided with a plurality of connecting columns 9, the connecting columns 9 are arranged along the length direction of the longitudinal beam 5, and the connecting columns 9 are connected with the longitudinal beam 5. For example, the longitudinal beam 5 is provided with a mounting hole, and the connecting column 9 is penetrated into the mounting hole and is welded to the longitudinal beam 5.
Further, the mounting hole runs through the setting, and the first end of spliced pole 9 is located the top of longeron 5, and spliced pole 9 second end passes the mounting hole and sets up in the below of longeron 5. The first end of spliced pole 9 is equipped with location arch 7, and the second end of spliced pole 9 is equipped with positioning groove 8.
It should be noted that, the bottom plate is provided with an avoiding hole for connecting and matching the positioning protrusion 7 and the positioning groove 8, and the hole wall of the avoiding hole is connected with the outer circumferential side wall of the connecting column 9 to form a sealing structure, so that the sealing effect on the battery cell is improved.
Further, the connection post 9 is provided with a center hole constituting the through hole, and the connection bolt 16 can pass through the center hole of the connection post 9 without additional holes on the connection member and the bottom plate when the stacked battery cases 18 are connected.
Referring to fig. 1, in some embodiments provided by the present invention, the battery case 18 further includes a seal 12.
The end of the shroud 3 remote from the base plate is folded inwardly to form a flange 11 and a seal 12 is provided on the flange 11. By providing the sealing member 12, when the battery cases 18 are stacked on each other, the bottom plate of the upper battery case 18 is attached to the flange 11 of the lower battery case 18, and the sealing member 12 on the flange 11 can improve the sealing effect of the bottom plate of the upper battery case 18 against the lower battery case 18.
Further, the flange 11 is provided with a sealing groove, and the sealing member 12 is provided in the sealing groove.
Alternatively, the seal 12 may be provided as a foam gasket.
Referring to fig. 1, the flange 11 is also provided with an avoiding hole for connecting and matching the positioning protrusion 7 with the positioning groove 8, and the hole wall of the avoiding hole is connected with the outer circumferential side wall of the connecting column 9 to form a sealing structure.
In some embodiments provided by the utility model, the shroud 3 and the base are provided as a resin-integrated structure.
Because the bottom plate sets up in the bottom of base, consequently can keep warm to liquid cooling plate 4 and insulate against heat, can pile up when using at battery box 18 simultaneously, make the liquid cooling plate 4 of upper battery box 18 and lower floor battery box 18 insulating, avoid the electric core of lower floor battery box 18 to discharge to the base of upper battery box 18.
When the coaming 3 and the bottom plate are arranged, the base and the connecting part can be connected and then arranged in the mold, resin is injected into the mold, and the coaming 3 and the bottom plate which are of an integrated structure are formed after the resin is cured.
So set up, the base can provide the intensity support with adapting unit arranges inside in, and the setting of resin spare provides at the periphery and encloses and seal.
In some embodiments provided by the present invention, the battery housing 18 further includes an electrical wiring compartment 13.
The electrical appliance wiring bin 13 is arranged in the accommodating space, and the electrical appliance wiring bin 13 is connected with the base. For example, the electrical wiring compartment 13 may be connected to the cross member 6. The electrical wiring compartment 13 can be used for setting an electrical interface, and since the electrical wiring compartment 13 is disposed in the accommodating space, there is no interface or protrusion outside the battery box 18, so that the whole battery box 18 is more compact.
Referring to fig. 5-7, a power battery is further provided in the embodiment of the utility model.
Specifically, the power battery comprises a fixed guide assembly 14, a battery module and a hoisting assembly 15 which are arranged from top to bottom in sequence.
The battery module includes a plurality of battery cases 18 as described above. Each battery box 18 is provided with a battery core therein, and the plurality of battery boxes 18 are arranged from bottom to top in sequence.
It should be noted that the power battery includes the battery case 18 and also includes all the advantages of the battery case 18, which are not described herein again.
The fixed guide assembly 14 and the lifting assembly 15 may be provided as a frame structure or a box structure.
In addition, the power battery may further include a cooling unit, a battery distribution box, and the like, and the cooling unit, the battery distribution box, and the like may be integrated in the fixed guide assembly 14 and/or the lifting assembly 15.
In some embodiments provided by the utility model, the power battery further comprises a connecting bolt 16 and a connecting nut 17 in threaded fit with the connecting bolt 16, and the connecting bolt 16 penetrates through the hoisting assembly 15, the battery module and the fixing assembly and is matched with the connecting nut 17, so that the hoisting assembly, the battery module and the fixing assembly are connected and fixed. The three are connected through the connecting bolt 16, so that the overall strength of the power battery is higher. When the connection bolt 16 is inserted into the battery module, it is inserted through the through-hole of the connection member of each battery case 18.
The embodiment of the utility model also provides an electric vehicle.
Specifically, the electric vehicle includes the battery case 18 as described above, or includes the power battery as described above.
It should be noted that the electric vehicle includes the battery box 18 or the power battery and also includes all the advantages of the corresponding components, which are not described herein again.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (13)
1. A battery case, comprising:
the base is internally provided with a liquid cooling channel for cooling liquid to flow, and the base also comprises a liquid cooling pipeline connected with the liquid cooling channel;
the connecting part is connected with the base, protrudes out of the top of the base and is arranged along the edge of the base;
a surrounding plate surrounding the outer periphery of the base and connected with the connecting part;
the bottom plate is arranged at the bottom of the base and connected with the enclosing plate, and the bottom plate and the enclosing plate enclose a containing space for containing the battery cell.
2. The battery box of claim 1, wherein the base includes a frame and a liquid cooling plate coupled to the frame;
the connecting part is connected with the frame, and the liquid cooling pipeline is connected with the liquid cooling plate.
3. The battery box of claim 2, wherein the frame comprises longitudinal and transverse beams;
the number of the longitudinal beams is two, the two longitudinal beams are respectively arranged on two sides of the liquid cooling plate, and the longitudinal beams are connected with the liquid cooling plate;
the crossbeam is used for installing the battery cell, the both ends of crossbeam are connected with two longerons respectively, just the crossbeam with the liquid cooling is connected mutually.
4. The battery box body as claimed in claim 3, wherein the longitudinal beam and the liquid cooling plate are arranged in an extrusion integral forming structure, or the longitudinal beam and the liquid cooling plate are connected in a welding manner, or the longitudinal beam and the liquid cooling plate are detachably connected;
the crossbeam with liquid cooling plate welded connection, perhaps the crossbeam with liquid cooling plate detachably is connected.
5. The battery case according to claim 1, wherein the connection member is provided with a through hole through which a threaded fastener is passed, the through hole extending in a top-to-bottom direction of the base.
6. The battery box body as claimed in claim 1, wherein the top and the bottom of the battery box body are respectively provided with a positioning protrusion and a positioning groove for the positioning protrusion to extend into.
7. The battery box according to claim 1, wherein the connection member includes a connection column and a reinforcement plate;
the number of the connecting columns is multiple, the connecting columns are distributed along the edge of the base, each connecting column is provided with the reinforcing rib plate, one end of each reinforcing rib plate is connected with the connecting column, and the other end of each reinforcing rib plate is connected with the base.
8. The battery box body as claimed in claim 1, further comprising a sealing member, wherein an end of the enclosing plate away from the bottom plate is folded inwards to form a flange, and the sealing member is arranged on the flange.
9. The battery box body according to claim 1, wherein the surrounding plate and the bottom plate are provided as a resin integrally molded structure;
or the coaming is made of glass fiber reinforced plastics, and the bottom plate is made of glass fiber reinforced plastics.
10. The battery box body of claim 1, further comprising an electrical appliance wiring bin, wherein the electrical appliance wiring bin is arranged in the accommodating space and is connected with the base.
11. A power battery is characterized by comprising a fixed guide assembly, a battery module and a hoisting assembly which are sequentially arranged from bottom to top;
the battery module comprises a plurality of battery boxes according to any one of claims 1 to 10, wherein each battery box is internally provided with a battery core, and the plurality of battery boxes are arranged from bottom to top in sequence.
12. The power battery of claim 11, further comprising a connecting bolt and a connecting nut in threaded engagement with the connecting bolt, wherein the connecting bolt passes through the hoisting assembly, the battery module and the fixed guide assembly and engages with the connecting nut.
13. An electric vehicle, characterized by comprising a battery case according to any one of claims 1 to 10, or a power battery according to claim 11 or 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220304658.1U CN216872156U (en) | 2022-02-14 | 2022-02-14 | Battery box, power battery and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220304658.1U CN216872156U (en) | 2022-02-14 | 2022-02-14 | Battery box, power battery and electric vehicle |
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| Publication Number | Publication Date |
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| CN216872156U true CN216872156U (en) | 2022-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220304658.1U Active CN216872156U (en) | 2022-02-14 | 2022-02-14 | Battery box, power battery and electric vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024107844A1 (en) * | 2022-11-15 | 2024-05-23 | Battle Motors, Inc. | Battery frame for a battery rack and battery rack structure for an electric vehicle |
-
2022
- 2022-02-14 CN CN202220304658.1U patent/CN216872156U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024107844A1 (en) * | 2022-11-15 | 2024-05-23 | Battle Motors, Inc. | Battery frame for a battery rack and battery rack structure for an electric vehicle |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230802 Address after: 410100 201, Floor 2, Maker Building, Sany Industrial City, No. 1, Sany Road, Changsha Economic Development Zone, Changsha, Hunan Province, China (Hunan) Pilot Free Trade Zone Patentee after: Sany Lithium Energy Co.,Ltd. Address before: 102206 5th floor, building 6, 8 Beiqing Road, Changping District, Beijing Patentee before: SANY HEAVY INDUSTRY Co.,Ltd. |
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| TR01 | Transfer of patent right |