CN219591530U - Battery cover plate structure - Google Patents

Battery cover plate structure Download PDF

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Publication number
CN219591530U
CN219591530U CN202320967065.8U CN202320967065U CN219591530U CN 219591530 U CN219591530 U CN 219591530U CN 202320967065 U CN202320967065 U CN 202320967065U CN 219591530 U CN219591530 U CN 219591530U
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CN
China
Prior art keywords
pole
welding
block
hole
cover body
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Active
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CN202320967065.8U
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Chinese (zh)
Inventor
王正鸿
潘飞
刘敏
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Xiamen Golden Dragon Auto Body Co Ltd
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Xiamen Golden Dragon Auto Body Co Ltd
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Priority to CN202320967065.8U priority Critical patent/CN219591530U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Connection Of Batteries Or Terminals (AREA)

Abstract

The utility model discloses a battery cover plate structure, which comprises: the cover body is arranged on the insulating plate in a limiting way, and a limiting hole is formed in the cover body; the insulating plate is used for penetrating the pole column; the pole is positioned at one side of the insulating plate and comprises a base plate and a column body which are connected into a whole, and the column body is provided with at least one limiting part positioned at the periphery and a connecting surface positioned at the free end; the pole block is arranged on one side of the cover body, an assembly hole is formed on the pole block, and the hole wall of the assembly hole is in rotation-stopping fit with the limiting part; the free end of the pole penetrates through the insulating plate and the cover body in sequence and is then arranged at the pole block, the limiting part of the side wall of the pole is respectively in rotation-stopping fit with the limiting hole of the cover body and the assembly hole of the pole block, and the connecting surface of the pole and the pole block are welded into a whole after being matched through the attachment structure, so that the insulating plate and the cover body are clamped by the pole and the pole block; the utility model provides a battery cover plate structure solves the problem that the stability is poor, easy damage electrode after the assembly of the electrified electrode on the current battery cover plate.

Description

Battery cover plate structure
Technical Field
The utility model relates to the field of battery cover plate production, in particular to a battery cover plate structure.
Background
In recent years, under the drive of national environmental protection policies, new energy automobiles and energy storage industries in China develop heat, the demand of lithium ion batteries in China is driven to rapidly increase, and the demand of lithium ion battery structural members is greatly increased, and along with the rapid development of the battery structural members and the improvement of the product requirements of host factories, each battery structural member enterprise expands and competes strongly to occupy more market shares, so that the number and variety of battery structures are more and more, the quality of products is more and more improved, and the price of the products is lower and more. Under the background, in order to maintain the competitiveness of the battery structural members supplied and maintain or even improve the profit of the product, many battery structural member suppliers must search for more optimized structural designs in various links such as product design development, production and supply, and reduce the cost on the basis of ensuring the quality of the product.
The battery cover plate produced by most battery structural member enterprises needs a plurality of procedures to realize preparation, and the specific preparation method is as follows, namely, the cover body is stamped and formed firstly, and then all components (such as polar plates, polar posts and the like) are riveted on the cover body respectively, so that the method has the following defects although the process is simpler: the insulating sheet on the cover body is easy to be damaged, when the pole post is riveted with the pole block, the cover body is easy to be crushed due to the fact that the pressure is not easy to control during riveting, or the insulating sheet is insufficient in riveting strength, so that stable assembly cannot be realized; in addition, the volume of the riveting salient point formed at the end part after riveting is overlarge, which seriously affects the subsequent assembly and the aesthetic property; more importantly, the service life of the product connected by the existing mode is short, and the product is easy to loose after shaking and jolting of the vehicle, so that the driving and riding use safety is seriously influenced;
in summary, the existing battery cover plates need to be further improved and optimized.
Disclosure of Invention
The utility model aims to overcome the defects or problems in the background art and provide a battery cover plate structure which is simple in structure, simple and convenient to manufacture, easy to realize and low in cost, and solves the problems of poor stability and easy electrode damage after the assembly of an electrified electrode on the existing battery cover plate.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a battery cover plate structure, the battery cover plate comprising: the cover body, the insulating plate, the pole column and the pole block; the cover body is arranged on the insulating plate in a limiting manner, and a limiting hole is formed in the cover body; the insulating plate is used for penetrating the pole column; the pole is positioned on one side of the insulating plate and comprises a base plate and a column body which are connected into a whole, wherein the column body is provided with at least one limiting part positioned at the periphery and a connecting surface positioned at the free end; the pole block is arranged on one side of the cover body, an assembly hole is formed on the pole block, and the hole wall of the assembly hole is in rotation-stopping fit with the limiting part; the free end of the pole penetrates through the insulating plate and the cover body in sequence and then is arranged at the pole block, the limiting part of the side wall of the pole is respectively in rotation-stopping fit with the limiting hole of the cover body and the assembly hole of the pole block, and the connecting surface of the pole and the pole block are welded into a whole after being matched through the attachment structure, so that the pole and the pole block clamp the insulating plate and the cover body.
Further, the battery pack further comprises a first insulating sealing gasket which is arranged between the insulating plate and the pole; the first insulating sealing gasket is arranged in a hollow mode, and the periphery of the first insulating sealing gasket is arranged in a stepped mode; one end of the first insulating sealing gasket penetrates through the insulating plate, the other end of the first insulating sealing gasket is matched with the pole, and the stepped surface of the first insulating sealing gasket abuts against the insulating plate for sealing.
Further, the battery pack also comprises a second insulating sealing gasket which is arranged between the pole block and the cover body; the second insulating sealing gasket forms a containing part which is provided with a limit coating for the electrode block.
Further, the attachment structure includes a welding face and a contact face configured as a connection face formed at the free end of the pole; the welding surface is configured as the bottom wall of the assembly hole on the pole block; the pole block is assembled facing the pole block, the connecting surface of the free end of the pole block is propped against the bottom wall of the assembly hole, and the welding surface and the contact surface are connected into a whole through laser penetration welding.
Further, grooves are formed in the positions, corresponding to the welding surfaces, of the pole blocks, and the grooves are used for being provided with welding lines or welding materials.
Further, the attachment structure includes a contact surface configured as a connection surface formed at a free end of the pole and a weld; the assembly holes are stepped through holes, large holes of the stepped through holes are arranged facing the cover body, and small holes penetrate through the pole blocks; the welding part is configured as a joint between the pore wall of the small pore and the contact surface when the contact surface of the pole is propped against the bottom wall of the large pore; and welding along the joint overlapping edge so as to fixedly connect the pole block with the pole post.
Further, the contact surface on the pole and the limiting part are arranged in a step, and the limiting part is positioned in the big hole and forms limiting fit; the contact surface is protruded and is connected with the small hole, the contact surface is flush with the outer surface of the pole block to form the welding part, and the pole block and the pole post are fixedly connected into a whole through seam welding.
Further, an inner concave part is formed on the outer surface of the pole block, and the outer diameter of the inner concave part is larger than the diameter of the assembly hole; the contact surface of the pole is flush with the bottom surface of the concave part or the step surface of the large hole and the small hole.
Further, the cross section of the limit part on the pole post is triangular, polygonal or elliptical.
From the above description of the present utility model, compared with the prior art, the present utility model has the following advantages:
(1) The utility model provides a battery cover plate structure which is simple in structure, simple and convenient to manufacture, easy to realize and low in cost, and solves the problems of poor stability and easy electrode damage after the assembly of an electrified electrode on the existing battery cover plate; after the novel riveting type pole piece is assembled in a limiting mode, the torsion requirement of a foundation is guaranteed, the assembly structure is preassembled, and the pole piece and the pole block are combined in a welding mode, so that the rough violent assembly mode of the existing riveting is improved, the pole piece and the pole block are not easy to damage, and the attractiveness and the stability are better; more importantly, the cost is greatly reduced, the test of fatigue, compression resistance, torsion resistance and the like is easier to pass, the service life is longer, and the device can be stably used in a severe use environment;
(2) The novel structure is additionally provided with the first insulating sealing gasket and the second insulating sealing gasket which are respectively used for insulating and matching the pole post, the pole block and the cover body, and meanwhile, a certain deformation space is provided, so that the assembly is more compact, and the insulating effect is better;
(3) The novel attachment structure comprises a welding surface and a contact surface, the welding surface and the contact surface are welded into a whole through laser penetration welding, the welding in the mode does not need to consider an accurate welding path, only the covering type or multi-point type welding is needed in the range, the welding positions are more, the strength is sufficient, the welding steps are simple and convenient, excessive accurate alignment is not needed, and the cost is low; in addition, a groove is additionally arranged, and welding lines and the like are accommodated through the groove, so that the welding lines are not exposed, the surface of the welding lines is smoother, and interference is not easy to occur in subsequent assembly with other parts;
(4) The assembly holes adopt stepped through holes, and can be welded in a planar seam welding way, or welded by overlapping edges of small holes of the assembly holes and contact surfaces, and the assembly holes and the contact surfaces can be welded in a wider welding way by adopting laser welding, arc welding and the like; besides, the inner concave part is used for accommodating solder, welding lines and the like, so that the surface is attractive and the stability is better;
(5) The cross-sectional shape of the limiting part adopts triangle, polygon or ellipse, and the anti-rotation and anti-twisting capabilities are improved through the mode.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the description of the embodiments below are briefly introduced, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is an exploded perspective view of a battery cover structure according to a first embodiment of the present utility model;
fig. 2 is a schematic perspective view of a battery cover structure according to a first embodiment of the utility model;
FIG. 3 is a cross-sectional view of a battery cover structure according to a first embodiment of the present utility model;
FIG. 4 is a cross-sectional view of a battery cover structure with a recess according to an embodiment of the utility model;
fig. 5 is an exploded perspective view of a battery cover structure according to a second embodiment of the present utility model;
FIG. 6 is a cross-sectional view of a pole piece in accordance with a second embodiment of the present utility model;
fig. 7 is a cross-sectional view of a battery cover structure in a second embodiment of the utility model;
FIG. 8 is a second cross-sectional view of a battery cover structure in a second embodiment of the utility model;
FIG. 9 is a cross-sectional view of a battery cover structure with an inner recess in accordance with a second embodiment of the present utility model;
fig. 10 is a second cross-sectional view of a battery cover structure with an inner recess in accordance with a second embodiment of the present utility model.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It is to be understood that the described embodiments are preferred embodiments of the utility model and should not be taken as excluding other embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without creative efforts, are within the protection scope of the present utility model.
In the claims, specification and drawings hereof, unless explicitly defined otherwise, the terms "first," "second," or "third," etc., are used for distinguishing between different objects and not for describing a particular sequential order.
In the claims, specification and drawings hereof, unless explicitly defined otherwise, references to orientation terms such as "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counter-clockwise", etc., are based on the orientation and positional relationship shown in the drawings and are for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have or be constructed and operated in a particular orientation, nor should it be construed as limiting the particular scope of protection of the utility model.
In the claims, specification and drawings of the present utility model, unless explicitly defined otherwise, the term "fixedly connected" or "fixedly connected" should be construed broadly, i.e. any connection between them without a displacement relationship or a relative rotation relationship, that is to say includes non-detachably fixedly connected, integrally connected and fixedly connected by other means or elements.
In the claims, specification and drawings of the present utility model, the terms "comprising," having, "and variations thereof as used herein, are intended to be" including but not limited to.
Embodiment one: as shown in fig. 1-4, the battery cover plate structure of the utility model is used in cooperation with a battery box, not only plays a role of covering, but also is used for electrically connecting a battery with external equipment;
the battery cover plate include: the cover body 1, the insulating plate 2, the pole 3 and the pole block 4;
the cover body 1 is arranged on the insulating plate 2 in a limiting manner, and a limiting hole 11 is formed in the cover body 1;
the insulation board 2 is penetrated by the pole 3;
the pole 3 is located at one side of the insulating plate 2, and comprises a base plate 31 and a column body 32 which are connected into a whole, wherein the column body 32 is provided with at least one limiting part 321 located at the periphery and a connecting surface located at the free end; the first insulating sealing gasket 5 is arranged between the insulating plate 2 and the pole 3; the first insulating gasket 5 is arranged in a hollow manner and the periphery of the first insulating gasket is arranged in a step shape; wherein, one end of the first insulating sealing pad 5 penetrates through the insulating plate 2, the other end is matched with the pole 3, and the step surface 50 of the first insulating sealing pad 5 is abutted against the insulating plate 2 for sealing;
the pole block 4 is arranged on one side of the cover body 1, and an assembly hole 41 is formed on the pole block, and the hole wall of the assembly hole 41 is in rotation-stopping fit with the limiting part 321; the second insulating sealing gasket 6 is arranged between the pole block 4 and the cover body 1; the second insulating gasket 6 forms a containing portion 60 for the electrode block 4 to be installed and limit-coated;
the free end of the pole 3 sequentially penetrates through the insulating plate 2 and the cover 1 and then is placed at the pole block 4, the limiting portion 321 on the side wall of the pole 3 is in rotation-stopping fit with the limiting hole 11 of the cover 1 and the assembly hole 41 of the pole block 4 respectively, and the connecting surface of the pole 3 and the pole block 4 are welded into a whole after being matched through the attachment structure 7, so that the pole 3 and the pole block 4 clamp the insulating plate 2 and the cover 1.
In this embodiment, the attachment structure 7 comprises a welding surface 71 and a contact surface 72, the contact surface 72 being configured as a connection surface formed at the free end of the pole 3; the welding surface 71 is configured as the bottom wall of the fitting hole 41 on the pole piece 4; wherein, the pole block 4 is assembled facing the pole block 4, the connecting surface 72 of the free end is propped against the bottom wall of the assembly hole 41, and the welding surface 71 and the contact surface 72 are connected into a whole by laser penetration welding.
In addition, a groove 8 is formed at a position of the pole piece 4 corresponding to the welding surface 71, and is used for installing welding to form welding lines or welding flux.
In particular, as shown in fig. 1-4, a battery cover plate with an attachment structure according to the first embodiment mainly includes the following parts: the device comprises a cover body 1, an insulating plate 2, a pole column 3, a pole block 4, a first insulating sealing gasket 5 and a first insulating sealing gasket 6;
the actual preparation and the assembly welding are carried out,
(1) The cover 1 is exemplified by an aluminum cover 1, and the cover 1 can be made of other materials; a limiting hole 11 is punched on the cover body 1 through punching equipment, and the limiting hole 11 is exemplified by an octagon in section;
(2) An insulating plate 2 mounted to the cover 1 to insulate the cover 1 from the inside of the battery case; the insulating plate 2 is made of insulating materials such as plastics and is provided with a through hole 20 for installing and penetrating the second insulating sealing gasket 6 and the pole 3;
(3) The first insulating sealing gasket 5 and the second insulating sealing gasket 6 are respectively made of soft rubber; wherein the first insulating gasket 5 is a stepped collar, the small-caliber part 51 of the collar is arranged in the assembly hole 41 of the insulating plate 2, and the large-caliber part 52 is exposed out of the insulating plate 2 and is provided for the pole 3 to be installed; the second insulating sealing gasket 6 is square, provided with a through hole 20 with the same shape as the assembly hole 41, and arranged corresponding to the other surface of the cover body 1; the second insulating sealing gasket 6 is also provided with a containing part 60 for limiting and installing the pole block 4;
(4) A post 3, the present utility model is exemplified by a positive post; the pole 3 comprises a base plate 31 and a column 32, the column 32 is arranged in a step shape, the periphery of the column 32 forms a limiting part 321 and a contact surface 72 of a free end, the column 32 in the first embodiment is exemplified by a two-stage step column, the upper limiting part 321 of the column is arranged in an octagonal shape (the cross section of the upper limiting part of the pole 3 can also be arranged in a triangle, a polygon or an ellipse); the octagonal limiting part 321 forms circumferential limiting with the limiting hole 11 on the cover body 1 and the polar block 4 during assembly;
(5) The pole block 4 is provided with an assembly hole 41, the assembly hole 41 in the first embodiment is a blind hole, and the inner peripheral wall of the assembly hole 41 is octagonal; the bottom wall of the blind hole 41 is tightly matched with the contact surface 72 of the column body 32 after being propped by a jig;
during assembly welding, the contact surface 72 of the pole 3 is cleaned, sequentially passes through the second insulating sealing gasket 6, the insulating plate 2, the cover body 1 and the first insulating sealing gasket 5, then enters the assembly hole 41 of the pole block 4, the limiting part 321 at the periphery of the pole 3 is in limiting fit with the inner wall of the assembly hole 41, the contact surface 72 on the pole 3 abuts against the bottom wall of the assembly hole 41 of the pole block 4, and then the pole 3 and the pole block 4 are welded into a whole in a laser penetration welding mode; the welding area is large, and the welding area is not limited by the welding line, so long as the welding area is within the range of the contact surface 72;
in addition, it should be noted that, in the prior art, the thickness of the outer surface of the pole block 4 and the contact surface 72 cannot be too thick, otherwise, the distance between the two is set by a welder according to actual requirements;
furthermore, in the novel structure, the outer surface of the pole block 4 is provided with the groove 8, and the groove 8 is used for accommodating welding lines, welding materials and the like formed after welding, so that the outer convex part can not appear on the surface after welding, and interference and the like can not be generated during subsequent assembly with other parts;
embodiment two: as shown in figures 5-10 of the drawings,
the same parts of the second embodiment as those of the first embodiment are not repeated, and the difference is that:
in the second embodiment, the attaching structure 7 includes a contact surface 72 and a welding portion 73;
the contact surface 72 is configured as a connection surface formed at the free end of the pole 3;
the assembly hole 41 is a stepped through hole (as shown in fig. 6), a large hole 411 of the stepped through hole is arranged facing the cover 1, and a small hole 412 penetrates the pole block 4;
when the welding portion 73 (as shown in fig. 7) is configured as a joint between the hole wall of the small hole 412 and the contact surface 72 when the contact surface 72 of the pole 3 abuts against the bottom wall of the large hole 411, in this embodiment, a lap welding manner is performed along the joint, so that the pole piece 4 and the pole 3 are fixedly connected.
Of course, as shown in fig. 8, the pole 3 may be configured in a three-stage step manner, that is, the contact surface 72 on the pole 3 and the limiting portion 321 are configured in a step manner, the limiting portion is located in the large hole 411 and forms a limiting fit, the contact surface 72 protrudes outwards and is attached to the small hole 412, the contact surface 72 is flush with the outer surface of the pole piece 4 to form the welding portion 73, and the pole piece 4 and the pole piece 3 are fixedly connected into a whole by seam welding.
Furthermore, the mounting hole 41 in the present embodiment is provided with an inner recess 9 (as shown in fig. 9 and 10) for accommodating solder, solder marks, etc.; the method comprises the following steps: the inner concave part 9 is formed on the outer surface of the pole block 4, and the outer diameter of the inner concave part 9 is larger than the diameter of the small hole 412 of the assembly hole 41; wherein the contact surface 72 of the pole 3 is flush with the bottom surface of the concave portion 9 or the stepped surfaces of the large hole 411 and the small hole 412.
The utility model provides a battery cover plate structure which is simple in structure, simple and convenient to manufacture, easy to realize and low in cost, and solves the problems of poor stability and easy electrode damage after the assembly of an electrified electrode on the existing battery cover plate; after the novel riveting type pole piece is assembled in a limiting mode, the torsion requirement of a foundation is guaranteed, the assembly structure is preassembled, and the pole piece and the pole block are combined in a welding mode, so that the rough violent assembly mode of the existing riveting is improved, the pole piece and the pole block are not easy to damage, and the attractiveness and the stability are better; more importantly, the cost is greatly reduced, the test of fatigue, compression resistance, torsion resistance and the like is easier to pass, the service life is longer, and the device can be stably used in a severe use environment; the novel structure is additionally provided with the first insulating sealing gasket and the second insulating sealing gasket which are respectively used for insulating and matching the pole post, the pole block and the cover body, and meanwhile, a certain deformation space is provided, so that the assembly is more compact, and the insulating effect is better; the novel attachment structure comprises a welding surface and a contact surface, the welding surface and the contact surface are welded into a whole through laser penetration welding, the welding in the mode does not need to consider an accurate welding path, only the covering type or multi-point type welding is needed in the range, the welding positions are more, the strength is sufficient, the welding steps are simple and convenient, excessive accurate alignment is not needed, and the cost is low; in addition, a groove is additionally arranged, and welding lines and the like are accommodated through the groove, so that the welding lines are not exposed, the surface of the welding lines is smoother, and interference is not easy to occur in subsequent assembly with other parts; the assembly holes adopt stepped through holes, and can be welded in a planar seam welding way, or welded by overlapping edges of small holes of the assembly holes and contact surfaces, and the assembly holes and the contact surfaces can be welded in a wider welding way by adopting laser welding, arc welding and the like; besides, the inner concave part is used for accommodating solder, welding lines and the like, so that the surface is attractive and the stability is better; the cross-sectional shape of the limiting part adopts triangle, polygon or ellipse, and the anti-rotation and anti-twisting capabilities are improved through the mode.
The foregoing description of the embodiments and description is presented to illustrate the scope of the utility model, but is not to be construed as limiting the scope of the utility model.

Claims (9)

1. A battery cover plate structure, characterized in that: the battery cover plate includes: the cover body, the insulating plate, the pole column and the pole block; the cover body is arranged on the insulating plate in a limiting manner, and a limiting hole is formed in the cover body; the insulating plate is used for penetrating the pole column; the pole is positioned on one side of the insulating plate and comprises a base plate and a column body which are connected into a whole, wherein the column body is provided with at least one limiting part positioned at the periphery and a connecting surface positioned at the free end; the pole block is arranged on one side of the cover body, an assembly hole is formed on the pole block, and the hole wall of the assembly hole is in rotation-stopping fit with the limiting part; the free end of the pole penetrates through the insulating plate and the cover body in sequence and then is arranged at the pole block, the limiting part of the side wall of the pole is respectively in rotation-stopping fit with the limiting hole of the cover body and the assembly hole of the pole block, and the connecting surface of the pole and the pole block are welded into a whole after being matched through the attachment structure, so that the pole and the pole block clamp the insulating plate and the cover body.
2. A battery cover structure as defined in claim 1, wherein: the first insulating sealing gasket is arranged between the insulating plate and the pole; the first insulating sealing gasket is arranged in a hollow mode, and the periphery of the first insulating sealing gasket is arranged in a stepped mode; one end of the first insulating sealing gasket penetrates through the insulating plate, the other end of the first insulating sealing gasket is matched with the pole, and the stepped surface of the first insulating sealing gasket abuts against the insulating plate for sealing.
3. A battery cover structure as defined in claim 2, wherein: the second insulating sealing gasket is arranged between the pole block and the cover body; the second insulating sealing gasket forms a containing part which is provided with a limit coating for the electrode block.
4. A battery cover structure as claimed in claim 1, 2 or 3, wherein: the attachment structure comprises a welding surface and a contact surface, wherein the contact surface is configured as a connecting surface formed at the free end of the pole; the welding surface is configured as the bottom wall of the assembly hole on the pole block; the pole block is assembled facing the pole block, the connecting surface of the free end of the pole block is propped against the bottom wall of the assembly hole, and the welding surface and the contact surface are connected into a whole through laser penetration welding.
5. A battery cover structure as defined in claim 4, wherein: the electrode block is provided with a groove at the position corresponding to the welding surface, and the groove is used for installing and welding to form welding lines or welding flux.
6. A battery cover structure as claimed in claim 1, 2 or 3, wherein: the attachment structure comprises a contact surface and a welding part, wherein the contact surface is configured as a connecting surface formed at the free end of the pole; the assembly holes are stepped through holes, large holes of the stepped through holes are arranged facing the cover body, and small holes penetrate through the pole blocks; the welding part is configured as a joint between the pore wall of the small pore and the contact surface when the contact surface of the pole is propped against the bottom wall of the large pore; and welding along the joint overlapping edge so as to fixedly connect the pole block with the pole post.
7. A battery cover structure as defined in claim 6, wherein: the contact surface on the pole and the limiting part are arranged in a step manner, and the limiting part is positioned in the big hole and forms limiting fit; the contact surface is protruded and is connected with the small hole, the contact surface is flush with the outer surface of the pole block to form the welding part, and the pole block and the pole post are fixedly connected into a whole through seam welding.
8. A battery cover structure as defined in claim 7, wherein: the inner concave part is formed on the outer surface of the pole block, and the outer diameter of the inner concave part is larger than the diameter of the assembly hole; the contact surface of the pole is flush with the bottom surface of the concave part or the step surface of the large hole and the small hole.
9. A battery cover structure as defined in claim 1, wherein: the cross section of the limit part on the pole post is triangular, polygonal or elliptical.
CN202320967065.8U 2023-04-26 2023-04-26 Battery cover plate structure Active CN219591530U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320967065.8U CN219591530U (en) 2023-04-26 2023-04-26 Battery cover plate structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320967065.8U CN219591530U (en) 2023-04-26 2023-04-26 Battery cover plate structure

Publications (1)

Publication Number Publication Date
CN219591530U true CN219591530U (en) 2023-08-25

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Application Number Title Priority Date Filing Date
CN202320967065.8U Active CN219591530U (en) 2023-04-26 2023-04-26 Battery cover plate structure

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116960581A (en) * 2023-09-21 2023-10-27 常州瑞德丰精密技术有限公司 Method for assembling battery top cover assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116960581A (en) * 2023-09-21 2023-10-27 常州瑞德丰精密技术有限公司 Method for assembling battery top cover assembly
CN116960581B (en) * 2023-09-21 2023-11-21 常州瑞德丰精密技术有限公司 Method for assembling battery top cover assembly

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