CN212725470U - Lithium ion battery package anticollision structure - Google Patents
Lithium ion battery package anticollision structure Download PDFInfo
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- CN212725470U CN212725470U CN202021246654.XU CN202021246654U CN212725470U CN 212725470 U CN212725470 U CN 212725470U CN 202021246654 U CN202021246654 U CN 202021246654U CN 212725470 U CN212725470 U CN 212725470U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a lithium ion battery package anti-collision structure, which belongs to the field of new energy auxiliary devices, wherein two first vertical plates and two second vertical plates are enclosed into a side plate; the first outer plate and the first inner plate are connected to the two flat plates; the second outer plate and the second inner plate are connected to the two flat plates; two ends of the connecting rod are fixedly connected to the two flat plates respectively, a transmission gear is rotatably connected to the position, close to the flat plates, of the connecting rod, the first rack and the second rack are meshed with the transmission gear, and the pin shaft penetrates through the end face of the transmission gear and is connected to the positioning hole; the first rack is connected to the first outer plate or the second outer plate, and one end of the second rack is connected to the first inner plate or the second inner plate. When suffering external force impact violently, the round pin axle breaks off, and drive gear can rotate freely this moment, and first planking or second planking slide inwards, and then corresponding first inner panel or second inner panel slide outwards, consequently can offset most energy to protect inside group battery.
Description
Technical Field
The utility model relates to a new forms of energy auxiliary device field, in particular to lithium ion battery package anticollision structure.
Background
In the face of huge environmental protection pressure and severe energy forms in the global scope, in recent years, the main automobile production countries in the world take the development of new energy automobile industry as a major strategic measure for sustainable development of economic society, and as a large energy consumption country, the development of new energy automobile industry is a necessary choice in the low-carbon economic era, and meanwhile, the industrial development of new energy automobiles is a new guide for the automobile industry.
In order to ensure the endurance mileage, the lithium ion battery is often used as a power battery of a new energy automobile due to the advantages of high voltage, large specific energy and long cycle life; the current manufacturing process of the lithium ion battery enables lithium ions to be easily affected by external impact, and due to the advantages of high voltage and high specific energy, when the lithium ions are impacted to generate internal short circuit or external puncture damage, more energy can be released in a short time, and even explosion is generated. Because the manufacturing process of the lithium ion battery pack enables the interior of the battery pack to be pressed and adjacent to each other, even if a single lithium battery is in accident, chain reaction can be caused, finally, even the whole battery pack is burnt or exploded, and the use safety of a new energy automobile is seriously threatened.
The damage of the new energy automobile battery pack is usually severe impact encountered in driving, namely the peripheral side surface, the top part is connected with the automobile body, the bottom part is scratched, and the automobile body has long-time high-frequency slight vibration when the new energy automobile is used, so that the anti-impact capability cannot be enhanced by using the buffering of a moving part (such as a spring), otherwise, the buffering part is easy to generate fatigue and is invalid.
Therefore, the lithium ion battery pack anti-collision structure is provided.
SUMMERY OF THE UTILITY MODEL
The utility model provides a lithium ion battery package anticollision structure can solve the new forms of energy group battery that exists among the prior art problem of damaging easily when receiving external impact.
The utility model provides a lithium ion battery package anticollision structure, includes flat board, first riser, second riser and aggregate unit, wherein:
the two flat plates are arranged in parallel, mounting holes used for being mounted to the bottom of an automobile are formed in the flat plate above the flat plates, and the two first vertical plates arranged oppositely and the two second vertical plates arranged oppositely enclose a side plate;
the first vertical plate comprises a first outer plate and a first inner plate, the first outer plate and the first inner plate are arranged in parallel, the upper end and the lower end of the first outer plate are respectively connected to the two flat plates in a sliding manner, and the upper end and the lower end of the first inner plate are respectively connected to the two flat plates in a sliding manner;
the second vertical plate comprises a second outer plate and a second inner plate, the second outer plate and the second inner plate are arranged in parallel, the upper end and the lower end of the second outer plate are respectively connected to the two flat plates in a sliding manner, and the upper end and the lower end of the second inner plate are respectively connected to the two flat plates in a sliding manner;
the linkage device comprises a transmission gear, a first rack, a second rack, a pin shaft and a connecting rod, wherein two ends of the connecting rod are respectively and fixedly connected to two flat plates, the transmission gear is rotatably connected to the connecting rod, the first rack is meshed with the transmission gear, the second rack is meshed with the transmission gear, the first rack and the second rack are arranged in parallel, a positioning hole is formed in each flat plate, the pin shaft penetrates through the transmission gear, and one end of the pin shaft is connected to the positioning hole;
the first vertical plate is provided with the linkage device, one end of the first rack penetrates through the first inner plate and is fixedly connected to the first outer plate, and one end of the second rack is fixedly connected to the first inner plate; the second vertical plate is provided with the linkage device, one end of the first rack penetrates through the second inner plate and is fixedly connected to the second outer plate, and one end of the second rack is fixedly connected to the second inner plate;
the pin shaft is made of aluminum 1050A.
Preferably, the energy absorption device comprises a first clamping plate, first connecting rods, energy absorption sheets, a second clamping plate and second connecting rods, wherein one end of each of the two first connecting rods is hinged to the first clamping plate, the other end of one first connecting rod is hinged to one end of the energy absorption sheet, and the other end of the other first connecting rod is hinged to the other end of the energy absorption sheet; one end of each of the two second connecting rods is hinged to the second clamping plate, the other end of one of the second connecting rods is hinged to one end of the energy absorbing piece, and the other end of the other of the second connecting rods is hinged to the other end of the energy absorbing piece;
a plurality of energy absorption devices are arranged between the first outer plate and the first inner plate on the same first vertical plate, the first clamping plate is detachably connected to the first outer plate, and the second clamping plate is detachably connected to the first inner plate;
a plurality of energy absorption devices are arranged between the second outer plate and the second inner plate on the same second vertical plate, the first clamping plate is detachably connected to the second outer plate, and the second clamping plate is detachably connected to the second inner plate; .
Preferably, the component force device further comprises a component force device, the component force device comprises a bearing piece and a supporting piece, the supporting piece comprises a bearing rod and a connecting plate, the bearing rod is fixedly connected to the connecting plate, the bearing piece is arc-shaped, the supporting pieces are arranged at the two ends of the bearing piece, the two bearing rods are hinged to the two ends of the bearing piece respectively, and the two connecting plates are detachably connected to the outer sides of the adjacent first outer plate and the second outer plate respectively.
Preferably, the first outer plate further comprises a first radiating fin fixedly connected to the outer side of the first outer plate; the second outer plate further comprises a second cooling fin which is fixedly connected to the outer side of the second outer plate.
Preferably, the rubber pad is further included, the rubber pad is laid between the first outer plate and the first inner plate, and the rubber pad is laid between the second outer plate and the second inner plate.
Preferably, the material of the energy absorbing sheet is spring steel 55S12 Mn.
Preferably, the contact side of the first inner plate and the second inner plate is provided with a 45-degree inclined plane.
Has the advantages that: the utility model provides an anti-collision structure of a lithium ion battery pack, when the periphery of a battery pack is impacted by external force, the first outer plate or the second outer plate tends to move inwards, and if the pin shaft is not broken, the first outer plate or the second outer plate absorbs the energy of impact, thereby protecting the battery pack inside, if the battery pack is impacted violently, the pin shaft is broken, a part of energy can be absorbed at the moment, and the transmission gear can rotate freely, whereby under the action of the first and second racks, the first or second outer plate slides inwardly, the corresponding first inner plate or the second inner plate slides outward, and the moving speed is the same, the momentum is equal, therefore, most of the energy can be offset after the impact occurs, thereby protecting the internal battery pack.
Drawings
Fig. 1 is a schematic view of an anti-collision structure of a lithium ion battery pack provided by the present invention;
FIG. 2 is a schematic cross-sectional view taken along line B-B of FIG. 1;
FIG. 3 is an enlarged view of a portion of the structure at A in FIG. 1;
FIG. 4 is an enlarged view of a portion of the structure at C in FIG. 2;
FIG. 5 is an enlarged view of a portion of the structure shown at D in FIG. 2;
fig. 6 is an enlarged view of a portion of the structure at E in fig. 2.
Description of reference numerals:
1-flat plate, 11-mounting hole, 3-first vertical plate, 31-first outer plate, 311-first radiating fin, 32-first inner plate, 4-second vertical plate, 41-second outer plate, 411-second radiating fin, 42-second inner plate, 5-component force device, 51-bearing sheet, 52-bearing rod, 53-connecting plate, 6-linkage device, 61-transmission gear, 62-first rack, 63-second rack, 64-pin shaft, 7-energy absorbing device, 71-first clamping plate, 72-first connecting rod, 73-energy absorbing sheet, 74-second clamping plate, 75-second connecting rod, 8-connecting rod and 9-rubber pad.
Detailed Description
In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.
Specific example 1:
as shown in fig. 1 to fig. 2 and fig. 5, an embodiment of the utility model provides a lithium ion battery package anticollision structure, including dull and stereotyped 1, first riser 3, second riser 4 and aggregate unit 6, wherein:
the two flat plates 1 are arranged in parallel, the upper flat plate 1 is provided with a mounting hole 11 for mounting to the bottom of an automobile, and the two oppositely arranged first vertical plates 3 and the two oppositely arranged second vertical plates 4 form a side plate in a surrounding manner;
the first vertical plate 3 comprises a first outer plate 31 and a first inner plate 32, the first outer plate 31 and the first inner plate 32 are arranged in parallel, the upper end and the lower end of the first outer plate 31 are respectively connected to the two flat plates 1 in a sliding manner, the upper end and the lower end of the first inner plate 32 are respectively connected to the two flat plates 1 in a sliding manner, and the connection modes are a dovetail-shaped guide rail and a matched sliding chute;
the second vertical plate 4 comprises a second outer plate 41 and a second inner plate 42, the second outer plate 41 and the second inner plate 42 are arranged in parallel, the upper end and the lower end of the second outer plate 41 are respectively connected to the two flat plates 1 in a sliding manner, the upper end and the lower end of the second inner plate 42 are respectively connected to the two flat plates 1 in a sliding manner, and the connection modes are a dovetail-shaped guide rail and a matched sliding chute;
the linkage device 6 comprises a transmission gear 61, a first rack 62, a second rack 63, a pin shaft 64 and a connecting rod 8, two ends of the connecting rod 8 are fixedly connected to the two flat plates 1 respectively, the transmission gear 61 is rotatably connected to the connecting rod 8, the first rack 62 is meshed with the transmission gear 61, the second rack 63 is meshed with the transmission gear 61, the first rack 62 and the second rack 63 are arranged in parallel, the flat plates 1 are provided with positioning holes, the pin shaft 64 penetrates through the transmission gear 61, and one end of the pin shaft 64 is connected to the positioning holes;
the first vertical plate 3 is provided with a linkage device 6, one end of a first rack 62 passes through the first inner plate 32 and is fixedly connected to the first outer plate 31, and one end of a second rack 63 is fixedly connected to the first inner plate 32; the second vertical plate 4 is provided with a linkage device 6, one end of a first rack 62 passes through the second inner plate 42 and is fixedly connected to the second outer plate 41, and one end of a second rack 63 is fixedly connected to the second inner plate 42;
the material of the pin 64 is aluminum 1050A.
When the peripheral side surfaces are impacted, the first outer plate 31 or the second outer plate 41 tends to move inwards along the dovetail-shaped guide rail, at the moment, if the pin shaft 64 is not broken, the energy of the impact is absorbed by the first outer plate 31 or the second outer plate 41, so that an internal battery pack is protected, if the impact is severe, the pin shaft 64 is broken, at the moment, the deformation before the pin shaft 64 is broken absorbs a part of energy, and at the moment, the transmission gear 61 can rotate freely, at the moment, the first outer plate 31 or the second outer plate 41 moves inwards along the dovetail-shaped guide rail, the first rack 62 fixedly connected with the first outer plate 31 or the second outer plate 4 moves inwards, the transmission gear 61 is driven to rotate, the second rack 63 is driven to move outwards, the corresponding first inner plate 32 or the second inner plate 42 is driven to slide outwards, at the same moving speed of the two plates which move oppositely, so that the contact time is the same when the impact occurs, therefore, the momentum is equal but the moving directions are opposite, so that the momentum is cancelled out, most energy can be consumed, and the internal battery pack can be protected.
Specific example 2:
in embodiment 1, since the impact point is the joint of first riser 3 and second riser 4, and the corner, the first outer plate 31 or the second outer plate 41 is stressed to be parallel to the plate surface, the linkage device 6 basically fails, the first vertical plate 3 and the second vertical plate 4 are mainly subjected to bending deformation, therefore, damage to the internal battery pack is still easily caused, and therefore, on the basis of embodiment 2, as shown in fig. 6, the present embodiment further includes a force divider 5, the force divider 5 includes a force-bearing piece 51 and a support piece, the support piece includes a force-bearing rod 52 and a connecting plate 53, the force-bearing rod 52 is fixedly connected to the connecting plate 53, the force-bearing piece 51 is arc-shaped, the support piece is disposed at both ends of the force-bearing piece 51, the two force-bearing rods 52 are respectively hinged to both ends of the force-bearing piece 51, the two connecting plates 53 are respectively detachably connected to the outer sides of the adjacent first outer plate 31 and the second outer plate 41, and.
When the peripheral corner direction is impacted, the impact point is on the arc-shaped bearing piece 51, the force is transmitted to the adjacent first outer plate 31 and the second outer plate 42 through the bearing rod 52, so that the adjacent first outer plate 31 and the adjacent second outer plate 42 have the tendency of moving inwards, and the linkage 6 is prevented from failing.
Specific example 3:
in embodiment 1 or embodiment 2, when an impact of continuous force application occurs, the energy absorption of the device is too limited, and the pin 64 is generally low in stress and shear strength, so that the pin 64 is easily broken when a slight impact occurs, and therefore the pin 64 is replaced too frequently and is not reasonable enough, on the basis of embodiment 1 or embodiment 2, as shown in fig. 1 to 5, the energy absorption device 7 and the rubber pad 9 are further included in the present embodiment, the energy absorption device 7 includes a first catch plate 71, a first link 72, an energy absorption sheet 73, a second catch plate 74 and a second link 75, one end of each of the two first links 72 is hinged to the first catch plate 71, the other end of one first link 72 is hinged to one end of the energy absorption sheet 73, and the other end of the other first link 72 is hinged to the other end of the energy absorption sheet 73; one end of each of the two second connecting rods 75 is hinged to the second catch plate 74, the other end of one of the second connecting rods 75 is hinged to one end of the energy absorbing piece 73, the other end of the other of the second connecting rods 75 is hinged to the other end of the energy absorbing piece 73, and the energy absorbing piece 73 is made of spring steel 55S12Mn, so that the energy absorbing piece 73 has good toughness;
a plurality of energy absorbing devices 7 are arranged between the first outer plate 31 and the first inner plate 32 on the same first vertical plate 3, the first clamping plate 71 is detachably connected to the first outer plate 31, the second clamping plate 74 is detachably connected to the first inner plate 32, and the connection modes are clamping connection;
a plurality of energy absorbing devices 7 are arranged between the second outer plate 41 and the second inner plate 42 on the same second vertical plate 4, the first clamping plate 71 is detachably connected to the second outer plate 41, the second clamping plate 74 is detachably connected to the second inner plate 42, and the connection modes are clamping connection;
the first outer plate 31 further includes a first heat sink 311, the first heat sink 311 being fixedly connected to an outer side of the first outer plate 31; the second outer plate 41 further includes a second heat sink 411, the second heat sink 411 being fixedly attached to an outer side of the second outer plate 41 for heat dissipation of the device and providing a buffer at the time of a light impact;
a rubber pad 9 is laid between the first outer plate 31 and the first inner plate 32, a rubber pad 9 is laid between the second outer plate 41 and the second inner plate 42 for further buffering, and the rubber pad 9 does not interfere with the energy absorption device 7;
the contact side of the first inner plate 32 and the second inner plate 42 is provided with a 45 ° bevel.
When the peripheral side surfaces or peripheral corners of the device are impacted, the first outer plate 31 or the second outer plate 41 tends to move inwards along the dovetail-shaped guide rail, if the impact force is not large, the first connecting rod 72 and the second connecting rod 75 pull the energy absorbing sheet 73 to elastically deform, at this time, the pin shaft 64 also elastically deforms because the energy absorbing sheet 73 absorbs partial energy, at this time, the energy absorbing sheet 73 mainly absorbs the energy of the impact, so that the internal battery pack is protected, if the impact force is severe, the energy absorbing sheet 73 breaks, at this time, the pin shaft 64 is subjected to sudden increase of force and also breaks, at this time, the deformation before the energy absorbing sheet 73 and the pin shaft 64 break absorbs partial energy, so that the service life of the pin shaft 64 is prolonged, more impact energy can be absorbed, and the safety is improved.
The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the embodiments, and any changes that can be considered by those skilled in the art shall fall within the protection scope of the present invention.
Claims (7)
1. The utility model provides a lithium ion battery package anticollision structure which characterized in that, includes flat board (1), first riser (3), second riser (4) and aggregate unit (6), wherein:
the two flat plates (1) are arranged in parallel, mounting holes (11) used for being mounted to the bottom of an automobile are formed in the flat plates (1) above the two flat plates, and the two first vertical plates (3) which are arranged oppositely and the two second vertical plates (4) which are arranged oppositely enclose a side plate;
the first vertical plate (3) comprises a first outer plate (31) and a first inner plate (32), the first outer plate (31) and the first inner plate (32) are arranged in parallel, the upper end and the lower end of the first outer plate (31) are respectively connected to the two flat plates (1) in a sliding manner, and the upper end and the lower end of the first inner plate (32) are respectively connected to the two flat plates (1) in a sliding manner;
the second vertical plate (4) comprises a second outer plate (41) and a second inner plate (42), the second outer plate (41) and the second inner plate (42) are arranged in parallel, the upper end and the lower end of the second outer plate (41) are respectively connected to the two flat plates (1) in a sliding manner, and the upper end and the lower end of the second inner plate (42) are respectively connected to the two flat plates (1) in a sliding manner;
the linkage device (6) comprises a transmission gear (61), a first rack (62), a second rack (63), a pin shaft (64) and a connecting rod (8), two ends of the connecting rod (8) are fixedly connected to the two flat plates (1) respectively, the transmission gear (61) is rotatably connected to the connecting rod (8), the first rack (62) is meshed with the transmission gear (61), the second rack (63) is meshed with the transmission gear (61), the first rack (62) and the second rack (63) are arranged in parallel, the flat plates (1) are provided with positioning holes, the pin shaft (64) penetrates through the transmission gear (61), and one end of the pin shaft (64) is connected to the positioning holes;
the linkage device (6) is arranged on the first vertical plate (3), one end of the first rack (62) penetrates through the first inner plate (32) and is fixedly connected to the first outer plate (31), and one end of the second rack (63) is fixedly connected to the first inner plate (32); the linkage device (6) is arranged on the second vertical plate (4), one end of the first rack (62) penetrates through the second inner plate (42) and is fixedly connected to the second outer plate (41), and one end of the second rack (63) is fixedly connected to the second inner plate (42);
the pin shaft (64) is made of aluminum 1050A.
2. The lithium ion battery pack anti-collision structure according to claim 1, further comprising an energy absorption device (7), wherein the energy absorption device (7) comprises first clamping plates (71), first connecting rods (72), an energy absorption sheet (73), a second clamping plate (74) and a second connecting rod (75), one end of each of the first connecting rods (72) is hinged to the first clamping plate (71), the other end of one of the first connecting rods (72) is hinged to one end of the energy absorption sheet (73), and the other end of the other first connecting rod (72) is hinged to the other end of the energy absorption sheet (73); one end of each of the two second connecting rods (75) is hinged to the second catch plate (74), the other end of one of the second connecting rods (75) is hinged to one end of the energy absorbing sheet (73), and the other end of the other second connecting rod (75) is hinged to the other end of the energy absorbing sheet (73);
a plurality of energy absorbing devices (7) are arranged between the first outer plate (31) and the first inner plate (32) on the same first vertical plate (3), the first clamping plate (71) is detachably connected to the first outer plate (31), and the second clamping plate (74) is detachably connected to the first inner plate (32);
a plurality of energy absorbing devices (7) are arranged between the second outer plate (41) and the second inner plate (42) on the same second vertical plate (4), the first clamping plate (71) is detachably connected to the second outer plate (41), and the second clamping plate (74) is detachably connected to the second inner plate (42).
3. The lithium ion battery pack anti-collision structure according to claim 1, further comprising a force component device (5), wherein the force component device (5) comprises a force bearing sheet (51) and a support member, the support member comprises a force bearing rod (52) and a connecting plate (53), the force bearing rod (52) is fixedly connected to the connecting plate (53), the force bearing sheet (51) is arc-shaped, the support member is arranged at each of two ends of the force bearing sheet (51), the two force bearing rods (52) are respectively hinged to two ends of the force bearing sheet (51), and the two connecting plates (53) are respectively detachably connected to the outer sides of the adjacent first outer plate (31) and the adjacent second outer plate (41).
4. The lithium ion battery pack crash prevention structure according to claim 1, wherein the first outer plate (31) further comprises a first heat sink (311), the first heat sink (311) being fixedly connected to an outer side of the first outer plate (31); the second outer plate (41) further comprises a second heat sink (411), and the second heat sink (411) is fixedly connected to the outer side of the second outer plate (41).
5. The lithium ion battery pack anti-collision structure according to claim 1, further comprising a rubber pad (9), wherein the rubber pad (9) is laid between the first outer plate (31) and the first inner plate (32), and the rubber pad (9) is laid between the second outer plate (41) and the second inner plate (42).
6. The lithium ion battery pack anti-collision structure according to claim 2, wherein the energy absorbing sheet (73) is made of spring steel 55S12 Mn.
7. The lithium ion battery pack crash structure according to claim 1, wherein a 45 ° chamfer is provided on a contact side of the first inner plate (32) and the second inner plate (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021246654.XU CN212725470U (en) | 2020-06-30 | 2020-06-30 | Lithium ion battery package anticollision structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021246654.XU CN212725470U (en) | 2020-06-30 | 2020-06-30 | Lithium ion battery package anticollision structure |
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| CN212725470U true CN212725470U (en) | 2021-03-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11394078B1 (en) * | 2021-05-13 | 2022-07-19 | Beta Air, Llc | Battery pack for failure safety |
| CN115224419A (en) * | 2022-09-16 | 2022-10-21 | 徐州普瑞赛思物联网科技有限公司 | Lithium battery packaging protection device |
-
2020
- 2020-06-30 CN CN202021246654.XU patent/CN212725470U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11394078B1 (en) * | 2021-05-13 | 2022-07-19 | Beta Air, Llc | Battery pack for failure safety |
| CN115224419A (en) * | 2022-09-16 | 2022-10-21 | 徐州普瑞赛思物联网科技有限公司 | Lithium battery packaging protection device |
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Effective date of registration: 20230105 Address after: 561000 Industrial Avenue, Huangtong street, Puding County, Anshun City, Guizhou Province Patentee after: Guizhou Mr. Li Electronic Technology Co.,Ltd. Address before: 318 Liuhe Road, Xiaoheshan Higher Education Park, Hangzhou, Zhejiang Province 310000 Zhejiang University of science and technology Patentee before: Hou Yanfeng |