CN112086595A - Lead-acid battery pack of electric vehicle - Google Patents
Lead-acid battery pack of electric vehicle Download PDFInfo
- Publication number
- CN112086595A CN112086595A CN202010918151.0A CN202010918151A CN112086595A CN 112086595 A CN112086595 A CN 112086595A CN 202010918151 A CN202010918151 A CN 202010918151A CN 112086595 A CN112086595 A CN 112086595A
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- China
- Prior art keywords
- lead
- acid battery
- battery pack
- shelf
- electric vehicle
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a lead-acid battery pack for an electric vehicle, which solves the problems that the conventional lead-acid battery is inconvenient to assemble to the electric vehicle and the position stability on the electric vehicle is relatively poor. This structure of electric motor car lead acid battery group includes a plurality of electrical connection lead acid battery together, these lead acid battery are together fixed by fastener, fastener includes shelf and a plurality of casting die, these casting dies are located the homonymy of shelf, be formed with a plurality of ann positions on the shelf, an ann position department shelves a lead acid battery, it is equipped with a plurality of stretching straps to settle between the position in adjacent two on the shelf, be provided with the latch structure corresponding to the stretching strap on the casting die, be equipped with a plurality of bayonets on the side of stretching strap. When the battery assembly is realized, the upper end part of the pull strip penetrates through the latch structure on the pressing piece to press the pressing piece, the upper end part of the pull strip is clamped by the clamp and pulled towards the upper side, after the clamp is loosened, the latch structure is clamped in the bayonet, and the pull strip enables the pressing piece to be pressed on the lead-acid battery.
Description
Technical Field
The invention relates to an electric vehicle power supply, in particular to a lead-acid battery pack for supplying power to an electric vehicle.
Background
The driving force for the electric vehicle is provided by a lead-acid battery pack, which needs to be fixed to the vehicle frame. On the present majority of electric motor cars, lead-acid batteries are all fixed at the lower side position of the frame running-board, and the lead-acid battery box is welded and fixed at the lower side position of the running-board and is placed in the lead-acid battery box. Lead-acid batteries are usually welded manually, and errors may occur during the welding process, which may cause inconvenience in placing the lead-acid batteries. Conservatively, under the normal condition, the size of the lead-acid battery box is set to be relatively large, after the lead-acid battery is placed in the lead-acid battery box, the position stability is not easy to guarantee, and the lead-acid battery is easy to be damaged due to jolt in the advancing process of a vehicle.
Chinese patent document (publication No. CN 202930443U) discloses a fastening device for a lithium battery module, which comprises a first bracket, a second bracket and a lithium battery module arranged therebetween, wherein four included angles of the first bracket and the second bracket are respectively provided with bolt holes corresponding to each other up and down, a screw rod externally sleeved with a limiting post is arranged in each bolt hole in a penetrating manner, and the upper end of the screw rod is provided with a fastening nut for adjustment, so that safety production is ensured, production cost is reduced, and productivity is improved.
This kind of device is when fastening the lithium cell, needs to realize the fixed to the lithium cell module through operation fastening nut, and the operation is comparatively troublesome, and the operating speed is slower relatively, can not guarantee the uniformity of each part screw rod fastening force. Moreover, in the application process of the lithium battery module, the internal part of the lithium battery module is easy to loose due to aging deformation.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the lead-acid battery pack of the electric vehicle is connected into a whole through the fastening device, the fastening operation is convenient, and the internal tightness of the formed lead-acid battery pack is good.
In order to solve the technical problem, the technical scheme of the invention is as follows: the utility model provides an electric motor car lead acid battery group, including a plurality of electrical connection lead acid battery together, these lead acid battery are together fixed by fastener, fastener includes shelf and a plurality of casting die, these casting dies are located the homonymy of shelf, its characterized in that is formed with a plurality of arrangement positions on the shelf, a lead acid battery is shelved to an arrangement position department, it is equipped with a plurality of stretching straps to settle between the position in adjacent two on the shelf, be provided with the latch structure corresponding to the stretching strap on the casting die, be equipped with a plurality of bayonets on the side of stretching strap. When the lead-acid battery is fixed in a group, the upper end of the pull belt penetrates through the latch structure on the pressing piece to press the pressing piece, the upper end of the pull belt is clamped by the clamp and pulled towards the upper side, after the clamp is loosened, the latch structure is clamped in the bayonet, and the pull belt enables the pressing piece to be pressed on the lead-acid battery.
The drawstring is made of nylon, similar to a nylon cable tie. The fastening device is used for fixedly connecting a plurality of lead-acid batteries together, after the lead-acid batteries are arranged on the arrangement position, the pressing piece is buckled, the upper end of the drawstring penetrates through the latch structure, the pressing piece is pressed by the foot, the upper end of the drawstring is clamped by the clamp and is pulled upwards, so that the drawstring and the latch structure are clamped together, the pressing piece can be firmly pressed on the lead-acid batteries, and the lead-acid batteries are fixed in groups.
Further, a casting die corresponds to a row of lead-acid batteries, and the casting die is connected with at least two drawstrings. The compression joint of the compression piece has high efficiency and good stability, and is convenient for compressing and connecting the lead-acid battery well.
Furthermore, the latch structure comprises a connecting seat, the connecting seat is placed on the pressing piece, a socket is arranged on the connecting seat, and the latch is formed on the inner wall surface of the socket. The latch structure and the pressing piece are of a split structure, so that the pressing piece can be conveniently and separately prepared, and the pressing piece can stably press and connect the lead-acid battery.
Furthermore, a skirt section is arranged on the connecting seat, the skirt section is arranged along the length direction of the pull belt, the socket is arranged in the skirt section, the skirt section is connected with the connecting seat through an outward connecting part, and the connecting seat, the connecting part and the skirt section are integrally formed. After the skirt portion is stressed, the pressing piece can be elastically pressed on the lead-acid battery through deformation of the connecting portion, and the pressing stability of the lead-acid battery can be effectively guaranteed.
Further, a recess is formed on the coupling seat outside the skirt, and the coupling portion is a bottom portion of the recess and is connected to a lower end portion of the skirt. This further improves the deformability of the coupling portion, and makes the crimping stability of the pressing member to the lead-acid battery good.
Furthermore, the back of the connecting seat is provided with an interface, and the pressing piece is provided with a raised head which is matched with the interface in an inserted manner. This makes the coupling seat have good coupling stability on the pressing member, facilitating the stable assembly of the coupling seat onto the pressing member.
Furthermore, the section of the raised head along the length direction of the pull belt is U-shaped, and the closed end of the raised head is inserted into the joint. The raised head is hollow and provided with an opening end and a closed end, the raised head has certain elasticity, the raised head can be plugged into the connector through elastic deformation of the raised head, and the connection stability between the latch structure and the pressing piece is improved.
Further, a tongue and groove is formed on the inner side surface of the boss, and the coupling portion is supported in the tongue and groove. The tongue-and-groove can provide support for the connecting part, the tongue-and-groove is arranged on the convex head, the structure of the convex head has deformability, and the elastic deformation of the connecting part enables the matching stability between the connecting seat and the pressing piece to be good, and the stretching belt is favorable for being in a tightened state for a long time. The aged length of the drawstring is easy to shorten, the drawstring is adaptive to the size change of the drawstring through the deformation of the connection part and the raised head, the drawstring can tension the pressing piece, the stability of the lead-acid battery pack is good, and the impact of a bumpy road surface on the lead-acid battery pack can be well adapted.
Furthermore, a plurality of support bars are arranged on the bottom surface of the shelf, the support bars are arranged in parallel at intervals, and the pull belt penetrates through the shelf and is connected to the support bars. The support bar is generally iron, so that the firmness of the formed lead-acid battery pack is ensured by arranging the support bar, and the lead-acid battery is conveniently and stably arranged on the frame by fixedly connecting the support bar with the frame.
Further, along the length direction of the supporting bar, the end part of the supporting bar is cut into three parts, and any part limits the lead-acid battery on the shelf by protruding upwards and deforming. This makes the tip of support bar be convenient for warp, and through the upwards protrusion of the deformation of some wherein, and can form limit structure in lead acid battery's bottom department, can effectively guarantee lead acid battery's stability.
Compared with the prior art, the invention has the following beneficial effects: when the lead-acid battery is fastened in groups, the upper end part of the drawstring is pulled to enable the latch structure to be clamped with the bayonet on the drawstring, the drawstring is in a tightened state after being shaped, the pressing piece can be stably pressed on the lead-acid battery, the relative position between the lead-acid batteries can be fixed, on one hand, the stability inside the lead-acid battery pack is improved, and on the other hand, the electric connection between the lead-acid batteries in the lead-acid battery pack is also stable. The lead-acid battery is fastened by pulling the pull belt through the clamp, and the operation is very convenient. The drawstring can be made of nylon, so that the drawstring can be well adapted to the deformation of a lead-acid battery shell, and the stability of the lead-acid battery can be ensured. Because the stretching belt is tightened and fixed, the integrity of the lead-acid battery pack on the electric vehicle is good, the lead-acid battery pack is not easy to loosen due to jolting of the electric vehicle, the lead-acid batteries can be effectively protected, and the stability of the electric connection points among the lead-acid batteries is good.
Drawings
Fig. 1 is a perspective view of a fastening device to which the present invention is applied.
Fig. 2 is a side view of the present electric vehicle lead-acid battery pack.
Fig. 3 is a perspective view of the lead-acid battery pack for an electric vehicle of the present invention.
Fig. 4 is a transverse cross-sectional view of the present electric vehicle lead-acid battery pack.
Fig. 5 is an enlarged view of a portion a in fig. 4.
In the drawings, 1, a shelf; 2. a supporting strip; 3. pressing parts; 31. a raised head; 4. a coupling seat; 41. A pit; 42. a skirt portion; 43. an interface; 44. a coupling portion; 5. pulling the belt; 6. a lead-acid battery.
Detailed Description
The lead-acid battery pack for the electric vehicle is characterized in that a plurality of lead-acid batteries 6 are connected and fixed together to form an integrated lead-acid battery pack, and the lead-acid batteries 6 in the lead-acid battery pack are electrically connected through a conductive structure, such as a conductive sheet and a lead.
To achieve the fixation of the lead-acid battery pack 6, it is necessary to apply to a fastening device. Referring to fig. 1, the structure of the fastening device comprises a shelf 1 and a pressing member 3, wherein the shelf 1 is in a frame structure, and the pressing member 3 is in a rod structure. In order to adapt to the placement of the lead-acid batteries 6, a plurality of frame-shaped structures are arranged on the shelf 1, one frame-shaped structure forms a placement position, and one lead-acid battery 6 is placed on one placement position. The frame-shaped structure is integrally formed on the shelf 1, and when the lead-acid battery 6 is placed in the placement position, the frame-shaped structure wraps the bottom of the lead-acid battery 6. A plurality of drawstrings 5 are connected on the shelf 1, the drawstrings 5 are generally made of nylon, and the drawstrings 5 are upwards penetrated out from between two adjacent arrangement positions. After the lead-acid battery 6 is placed on the installation position, the pressing piece 3 needs to be arranged on the upper end face of the lead-acid battery 6, and the rod-shaped pressing piece 3 is transversely pressed and connected with a row of lead-acid batteries 6. The upper end parts of the drawstrings 5 are used for being connected and fixed with the pressing piece 3, the pressing piece 3 is connected and fixed with at least two drawstrings 5, and at least one lead-acid battery 6 is required to be arranged between the drawstrings 5 connected on the pressing piece 3 at intervals. The pressing piece 3 is provided with a latch structure corresponding to the pull belt 5, the side face of the pull belt 5 is provided with a plurality of bayonets, the pull belt 5 passes through the latch structure, the end part of the pull belt 5 is upwards pulled through the clamp, and after the pull belt 5 is loosened, the latch structure is connected with the bayonets on the pull belt 5 in a clamping mode, so that the pull belt 5 is in a tightening state.
A split structure is arranged between the latch structure and the pressing piece 3, the latch structure comprises a connecting seat 4, and the connecting seat 4 is a plastic piece. A skirt part 42 is arranged at the middle position of the connecting seat 4, and the skirt part 42 is a column-shaped body and is arranged along the length direction of the pull belt 5. The lower end of the skirt 42 is connected with the connecting seat 4 through a connecting part 44, and the skirt 42, the connecting part 44 and the connecting seat 4 are integrally molded by the same material. A socket is provided in the skirt 42, a latch is formed on an inner wall surface of the socket, the pull tape 5 is inserted into the socket, and an upper end portion of the pull tape 5 protrudes to an upper side of the skirt 42.
The connecting seat 4 is provided with a pit 41, the connecting part 44 forms the bottom of the pit 41, and the outer peripheral surface of the skirt part 42 forms the inner side surface of the pit 41, so that the skirt part 42 has certain elasticity on the connecting seat 4, and the pressing piece 3 is favorably stably pressed on the lead-acid battery 6. In order to ensure the position stability of the connecting seat 4 on the pressing piece 3, the interface 43 is arranged on the back surface of the connecting seat 4, the pressing piece 3 is provided with a raised head 31 which is in inserted fit with the interface 43, and the connecting seat 4 is stably kept on the pressing piece 3. The nose 31 is hollow, the hollow nose 31 is U-shaped in cross-section along the length of the pull strip 5, the closed end of the nose 31 is inserted into the socket 43, and there is typically a tight fit between the nose 31 and the socket 43. A groove is formed on the inner side of the nose 31, in which the coupling portion 44 is supported.
The bottom surface of the shelf 1 is provided with a plurality of support bars 2, the shelf 1 is generally made of plastic, the support bars 2 are made of iron, the support bars 2 are arranged in parallel at intervals, and the lower end parts of the pull belts 5 penetrate through the shelf 1 and are connected to the support bars 2. The support strip 2 is connected to the frame of the electric vehicle, generally by welding, and the support strip 2 can provide support for the lead-acid batteries 6 on the shelf 1, so that the lead-acid batteries 6 are stably held in groups on the frame.
The length of support bar 2 will be greater than the width of shelf 1, and support bar 2 sets up along the width direction of shelf 1, and the both ends of support bar 2 all stretch out the outside of shelf 1. The protruding end of the support bar 2 is cut into three parts along the length of the support bar 2. The cut portions of the end portions of the support bar 2, particularly the middle portion thereof, may be deformed in an upwardly-raised arc shape so that the deformed cut portions provide a limit function to the shelf 1, so that the shelf 1 can be stably held on the support bar 2.
Claims (10)
1. A lead-acid battery pack of an electric vehicle comprises a plurality of lead-acid batteries which are electrically connected together, wherein the lead-acid batteries are fixed together by a fastening device, the fastening device comprises a shelf and a plurality of pressing pieces, and the pressing pieces are positioned at the same side of the shelf;
when the lead-acid battery lead-acid.
2. The lead-acid battery pack for electric vehicles according to claim 1, wherein a pressing member corresponds to a row of lead-acid batteries, and a pressing member is coupled to at least two straps.
3. The lead-acid battery pack for the electric vehicle as claimed in claim 1, wherein the latch structure comprises a coupling seat which rests on the pressing member, a socket is provided on the coupling seat, and the latch is formed on an inner wall surface of the socket.
4. The lead-acid battery pack for the electric vehicle as claimed in claim 3, wherein the connecting seat is provided with a skirt portion, the skirt portion is arranged along the length direction of the pull belt, the socket is arranged in the skirt portion, the skirt portion is connected with the connecting seat through an outward-facing connecting portion, and the connecting seat, the connecting portion and the skirt portion are integrally formed.
5. The lead-acid battery for electric vehicles according to claim 4, wherein a recess is formed on the coupling seat outside the skirt portion, the coupling portion is a bottom of the recess, and the coupling portion is connected to a lower end portion of the skirt portion.
6. The lead-acid battery pack for the electric vehicle as claimed in claim 4, wherein an interface is provided on the back of the coupling seat, and a projection which is in inserted fit with the interface is provided on the pressing member.
7. The lead-acid battery pack for the electric vehicle as claimed in claim 6, wherein the raised head is U-shaped in cross section along the length direction of the pull strip, and the closed end of the raised head is inserted into the interface.
8. The lead-acid battery pack for electric vehicles according to claim 6, wherein a tongue-and-groove is formed on an inner side surface of the tab, and the coupling portion is supported in the tongue-and-groove.
9. The lead-acid battery pack for electric vehicles according to any one of claims 1 to 8, wherein the bottom surface of the shelf is provided with a plurality of support bars arranged in parallel at intervals, and the pull straps are connected to the support bars through the shelf.
10. The lead-acid battery pack for the electric vehicle as claimed in claim 9, wherein the end of the support bar is cut into three parts along the length direction of the support bar, and any one part limits the lead-acid battery on the shelf by protruding upwards and deforming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010918151.0A CN112086595A (en) | 2020-09-03 | 2020-09-03 | Lead-acid battery pack of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010918151.0A CN112086595A (en) | 2020-09-03 | 2020-09-03 | Lead-acid battery pack of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112086595A true CN112086595A (en) | 2020-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010918151.0A Pending CN112086595A (en) | 2020-09-03 | 2020-09-03 | Lead-acid battery pack of electric vehicle |
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| Country | Link |
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| CN (1) | CN112086595A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113328181A (en) * | 2021-04-27 | 2021-08-31 | 天能电池集团股份有限公司 | Lead storage battery free of sealant and storage battery pack |
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| GB1123000A (en) * | 1965-11-19 | 1968-08-07 | Metal Box Co Ltd | Improvements in or relating to closure members for bottles or like containers |
| US4367572A (en) * | 1980-06-19 | 1983-01-11 | Zielenski Anthony L | Elastic clamping apparatus |
| JP2001208018A (en) * | 2000-01-31 | 2001-08-03 | Yazaki Corp | Double latching mechanism of bundling band |
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| JP2013054938A (en) * | 2011-09-05 | 2013-03-21 | Panasonic Corp | Lead acid battery and fitting method thereof |
| US20130252060A1 (en) * | 2012-03-22 | 2013-09-26 | Darnell M. Bolden | Battery Hold Down Device |
| CN203995631U (en) * | 2014-06-24 | 2014-12-10 | 北京汽车股份有限公司 | Automotive battery heat insulation fixing device |
| CN204506465U (en) * | 2015-02-28 | 2015-07-29 | 浙江绿野汽车有限公司 | A kind of novel electric vehicle electrokinetic cell installing mechanism |
| CN205112970U (en) * | 2015-10-27 | 2016-03-30 | 天津清源电动车辆有限责任公司 | Fixed stretching strap of batteries of electric vehicle package |
| CN106347093A (en) * | 2016-08-31 | 2017-01-25 | 上海蔚来汽车有限公司 | Battery box locking device and battery box including battery box locking device |
| CN207765504U (en) * | 2018-01-05 | 2018-08-24 | 郑州比克电池有限公司 | A kind of novel module of batteries of electric automobile packet |
| CN208637479U (en) * | 2018-07-28 | 2019-03-22 | 惠州市赛旺电子有限公司 | Battery modules with disconnecting prevention structure |
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2020
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Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1057711A (en) * | 1962-07-31 | 1967-02-08 | Waddington & Duval Ltd | Dispensing closure |
| GB1123000A (en) * | 1965-11-19 | 1968-08-07 | Metal Box Co Ltd | Improvements in or relating to closure members for bottles or like containers |
| US4367572A (en) * | 1980-06-19 | 1983-01-11 | Zielenski Anthony L | Elastic clamping apparatus |
| JP2001208018A (en) * | 2000-01-31 | 2001-08-03 | Yazaki Corp | Double latching mechanism of bundling band |
| CN201758150U (en) * | 2010-06-03 | 2011-03-09 | 浙江吉利汽车研究院有限公司 | Convenient assembly and disassembly automobile storage battery mounting structure |
| JP2013054938A (en) * | 2011-09-05 | 2013-03-21 | Panasonic Corp | Lead acid battery and fitting method thereof |
| US20130252060A1 (en) * | 2012-03-22 | 2013-09-26 | Darnell M. Bolden | Battery Hold Down Device |
| CN203995631U (en) * | 2014-06-24 | 2014-12-10 | 北京汽车股份有限公司 | Automotive battery heat insulation fixing device |
| CN204506465U (en) * | 2015-02-28 | 2015-07-29 | 浙江绿野汽车有限公司 | A kind of novel electric vehicle electrokinetic cell installing mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113328181A (en) * | 2021-04-27 | 2021-08-31 | 天能电池集团股份有限公司 | Lead storage battery free of sealant and storage battery pack |
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Application publication date: 20201215 |