CN223638495U - Battery casing and battery module having it - Google Patents
Battery casing and battery module having itInfo
- Publication number
- CN223638495U CN223638495U CN202422907713.8U CN202422907713U CN223638495U CN 223638495 U CN223638495 U CN 223638495U CN 202422907713 U CN202422907713 U CN 202422907713U CN 223638495 U CN223638495 U CN 223638495U
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- Prior art keywords
- battery
- hole
- electrical connection
- housing
- connection part
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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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model provides a battery shell and a battery module with the same. The battery shell is provided with a containing cavity for containing the battery core and comprises a shell structure, a cover body structure and a cover body structure, wherein the shell structure is provided with a containing concave part, a first electric connecting part and a second electric connecting part, the first electric connecting part is electrically connected with the second electric connecting part, the second electric connecting part is electrically connected with electric equipment, the first electric connecting part is positioned on the inner wall of the containing concave part, the cover body structure is covered on the containing concave part and is provided with a third electric connecting part, the third electric connecting part is arranged opposite to the containing concave part, so that the containing cavity is formed by surrounding between the third electric connecting part and the inner wall of the containing concave part, and the first electric connecting part and the third electric connecting part are used for being electrically connected with electrodes of the battery core. The utility model effectively solves the problem that the battery core of the vehicle battery in the related technology is inconvenient to replace.
Description
Technical Field
The utility model relates to the technical field of batteries for vehicles, in particular to a battery shell and a battery module with the same.
Background
Currently, in order to ensure the running stability of the vehicle battery, the serial aluminum bar of the vehicle battery and the output aluminum bar of the battery cell are usually connected with the battery cell by adopting a welding mode, so as to ensure that the connection part has enough reliable connection stability.
However, the battery cell cannot be used continuously after the battery cell is attenuated in a circulating way, and as the tabs (the serial aluminum bars and the output aluminum bars of the battery cell) are welded with the battery cell, the old battery cell is detached by a worker, the new battery cell is replaced with the new battery cell, and the process and difficulty of replacing the new battery cell are caused, so that the working efficiency and the labor intensity of the worker are seriously affected, and the gradient utilization of the old battery cell is also caused to be difficult to realize.
Disclosure of utility model
The utility model mainly aims to provide a battery shell and a battery module with the same, so as to solve the problem that the battery core of a vehicle battery in the related art is inconvenient to replace.
In order to achieve the above object, according to one aspect of the present utility model, there is provided a battery case having a receiving cavity for receiving an electric core, comprising a case structure having a receiving recess, a first electric connection part and a second electric connection part, the first electric connection part being electrically connected to the second electric connection part, the second electric connection part being for electrically connecting to electric equipment, the first electric connection part being located on an inner wall of the receiving recess, a cover structure provided on the receiving recess and having a third electric connection part, wherein the third electric connection part is disposed opposite to the receiving recess to form the receiving cavity around between the cover structure and the inner wall of the receiving recess, the first electric connection part and the third electric connection part being for electrically connecting to an electrode of the electric core.
The cover body is provided with a first avoidance notch, the first avoidance notch is positioned on the surface, close to the shell structure, of the cover body, and at least part of the third electric connecting piece is exposed through the first avoidance notch so as to form a third electric connecting part.
Further, the battery cell comprises a battery shell, wherein the battery shell further comprises a first locking piece, the first locking piece is sleeved on the connecting post and is abutted against the outer surface of the shell structure far away from the shell structure, and the battery shell is provided with a first through hole penetrating through the cover body and the first sub through hole.
Further, the cover body is provided with a first sub-penetrating hole, the first sub-penetrating hole is provided with a second sub-penetrating hole, the first sub-penetrating hole is communicated with the second sub-penetrating hole to form a first penetrating hole, the first locking piece is abutted to the outer surface of the first sub-penetrating hole far away from the shell structure, and the aperture of the first sub-penetrating hole is larger than that of the second sub-penetrating hole.
Further, the first locking piece is located in the first sub-penetrating hole, and the battery shell further comprises a first insulating piece which is arranged on the cover body structure and used for sealing the first sub-penetrating hole.
The shell structure comprises a shell body and a first electric connecting piece, wherein the shell body is provided with an accommodating concave part, the first electric connecting piece is arranged in the shell body, the shell body is provided with a second avoiding notch, the second avoiding notch is positioned on the inner wall of the accommodating concave part, and at least part of the first electric connecting piece is exposed through the second avoiding notch so as to form a first electric connecting part.
Further, the shell body is further provided with a mounting cavity which is arranged at intervals with the accommodating concave part, the shell structure further comprises a control element which is arranged in the mounting cavity, the shell structure is further provided with a fourth electric connection part which is positioned in the mounting cavity and is electrically connected with the control element, and the first electric connection part is electrically connected with the fourth electric connection part.
Further, the housing body includes a main body portion having a mounting recess provided on an outer surface thereof and a receiving recess, and a cover member provided on the main body portion so as to surround at least part of an inner wall of the mounting recess to form a mounting chamber therebetween.
The main body part is further provided with a third avoidance notch, the third avoidance notch is arranged on the inner wall of the installation concave part, the plurality of first electric connecting pieces are arranged at intervals along the length direction and/or the width direction of the shell body, and at least part of at least two first electric connecting pieces are exposed through the third avoidance notch to form a fourth electric connecting part.
Further, the electrode of the battery core is provided with a connecting column, the shell body is further provided with a second penetrating hole, the first electric connecting piece is provided with a third penetrating hole, the second penetrating hole is communicated with the third penetrating hole, the connecting column extends out of the accommodating cavity through the second penetrating hole and the third penetrating hole, the aperture of the second penetrating hole is larger than that of the third penetrating hole, the battery shell further comprises a second locking piece sleeved on the connecting column, and the second locking piece is abutted against the outer surface of the first electric connecting piece away from the shell structure.
Further, the second locking piece is located in the second penetrating hole, and the battery shell further comprises a second insulating piece which is arranged on the shell structure and used for sealing the second penetrating hole.
Further, the main body part is further provided with a fourth avoidance notch and a fifth avoidance notch, the fourth avoidance notch is arranged on the inner wall of the mounting concave part, the fifth avoidance notch is arranged on the outer peripheral surface of the main body part and is arranged at intervals with the cover member, the shell structure further comprises a second electric connecting piece which is arranged in the main body part, at least one part of the second electric connecting piece is exposed through the fourth avoidance notch to form a fifth electric connecting part, the fifth electric connecting part is used for being electrically connected with the control element, at least one other part of the second electric connecting piece is exposed through the fifth avoidance notch to form a second electric connecting part, the second electric connecting part is electrically connected with the first electric connecting part through the control element, and the electric connecting column is arranged on the second electric connecting part.
According to another aspect of the present utility model, there is provided a battery module including a battery case and a battery cell, the battery cell being disposed in a receiving cavity of the battery case, the battery case being the above-described battery case.
By applying the technical scheme of the application, the battery shell is provided with the accommodating cavity for accommodating the battery core, the shell structure of the battery shell is provided with the accommodating concave part, the first electric connecting part and the second electric connecting part, the first electric connecting part is electrically connected with the second electric connecting part, the second electric connecting part is electrically connected with the electric equipment, the first electric connecting part is positioned on the inner wall of the accommodating concave part, and the cover body structure is covered on the accommodating concave part and is provided with the third electric connecting part. The third electric connection part is arranged opposite to the accommodating concave part so as to form an accommodating cavity through surrounding between the cover body structure and the inner wall of the accommodating concave part, and the first electric connection part and the third electric connection part are used for being electrically connected with the electrode of the battery cell. In this way, the conductive piece, the shell structure and the cover body structure are integrated, so that the shell structure can form the first electric connection part, the second electric connection part and the cover body structure can form the third electric connection part, the serial connection between a plurality of battery cells is realized through the first electric connection part and the third electric connection part, the second electric connection part realizes the current output of the battery module, and the shell structure and the cover body structure are utilized to fix the electric connection parts, so that after the cover body structure is covered, the first electric connection part and the third electric connection part can be stably connected with the battery cells, so that the battery cells and the electric connection parts can be connected in a welding mode, a worker only needs to open the cover body structure, the replacement difficulty of the worker is greatly reduced, the replacement efficiency of the worker is improved, and the problem that the battery cells of the vehicle battery in the related technology are inconvenient to replace is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
fig. 1 shows a schematic perspective view of an embodiment of a battery case according to the present utility model;
FIG. 2 shows a schematic cross-sectional view of the battery housing of FIG. 1;
fig. 3 shows an enlarged schematic view of the battery case of fig. 2 at a;
fig. 4 shows an enlarged schematic view of the battery case of fig. 2 at B;
fig. 5 shows a rear view of the battery case of fig. 1;
FIG. 6 shows a front view of the battery housing of FIG. 1 with the first insulator removed;
Fig. 7 is a schematic perspective view showing a cover structure of the battery case of fig. 1;
Fig. 8 is a front view showing a case structure of the battery case of fig. 1;
Fig. 9 shows a schematic perspective view of the housing structure of fig. 8;
FIG. 10 shows a top view of the housing structure of FIG. 8;
FIG. 11 shows a top view of the housing structure of FIG. 8 with the cover removed, and
Fig. 12 shows a schematic perspective view of the first and second electrical connectors within the housing structure of fig. 8.
Wherein the above figures include the following reference numerals:
1. The battery cell, 101, the connecting column;
10. The shell comprises a shell structure, 11, a containing concave part, 12, a first electric connecting part, 13, a second electric connecting part, 14, a shell body, 141, a main body part, 142, a cover piece, 143, a second through hole, 15, a first electric connecting piece, 151, a third through hole, 152, a first sub-electric connecting piece, 153, a second sub-electric connecting piece, 16, a control element, 17, a fourth electric connecting part, 18, a second electric connecting piece, 181, an electric connecting column, 19 and a fifth electric connecting part;
20. The cover body comprises a cover body structure, a third electric connecting part, a cover body, a first sub-penetrating hole, a third electric connecting piece, a 231 and a second sub-penetrating hole, wherein the cover body is provided with a first sub-penetrating hole and a second sub-penetrating hole;
30. First locking member, 40, first insulating member, 50, second locking member, 60, second insulating member, 70, communication connector.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
As shown in fig. 1 to 12, the battery case has a housing cavity for housing the battery cell 1, the battery case includes a case structure 10 and a cover structure 20, the case structure 10 has a housing recess 11, a first electrical connection portion 12 and a second electrical connection portion 13, the first electrical connection portion 12 is electrically connected with the second electrical connection portion 13, the second electrical connection portion 13 is electrically connected with the electrical equipment, and the first electrical connection portion 12 is located on an inner wall of the housing recess 11. The cover structure 20 is provided to cover the accommodating recess 11 and has a third electrical connection portion 21. Wherein the third electrical connection part 21 is disposed opposite to the accommodating recess 11 to form an accommodating cavity around between the cover structure 20 and the inner wall of the accommodating recess 11, and the first electrical connection part 12 and the third electrical connection part 21 are used for electrical connection with the electrodes of the battery cell 1.
By applying the technical scheme of the embodiment, the battery shell is provided with a containing cavity for containing the battery core 1, the shell structure 10 of the battery shell is provided with a containing concave part 11, a first electric connecting part 12 and a second electric connecting part 13, the first electric connecting part 12 is electrically connected with the second electric connecting part 13, the second electric connecting part 13 is electrically connected with electric equipment, the first electric connecting part 12 is positioned on the inner wall of the containing concave part 11, and the cover body structure 20 is covered on the containing concave part 11 and is provided with a third electric connecting part 21. Wherein the third electrical connection part 21 is disposed opposite to the accommodating recess 11 to form an accommodating cavity around between the cover structure 20 and the inner wall of the accommodating recess 11, and the first electrical connection part 12 and the third electrical connection part 21 are used for electrical connection with the electrodes of the battery cell 1. Like this, this embodiment has actually carried out the integration between electrically conductive piece, shell structure 10 and lid structure 20, so that shell structure 10 self can form first electric connecting portion 12 and second electric connecting portion 13, lid structure 20 self can form third electric connecting portion 21, realize the serial connection between a plurality of electric cores 1 through first electric connecting portion 12 and third electric connecting portion 21, the electric current output of battery module is realized to second electric connecting portion 13, utilize shell structure 10 and lid structure 20 self to have fixed each electric connecting portion, after in order to ensure lid structure 20 lid establishes, first electric connecting portion 12 and third electric connecting portion 21 can be connected with electric core 1 steadily, thereby need not to adopt the welded mode to connect between electric core 1 and each electric connecting portion, and the staff only need open lid structure 20 and can change electric core 1, not only greatly reduced the degree of the change degree of staff, more promoted the change efficiency of staff, and then the battery core of vehicle battery in the correlation technique is inconvenient to change.
In the present embodiment, the accommodation recess 11 is practically cylindrical for accommodating the cylindrical battery cell 1.
The structure of the accommodating recess 11 is not limited to this, and may be designed according to the actual structure of the battery cell 1.
In the present embodiment, the number of the accommodating recesses 11 is four, and the four accommodating recesses 11 are arranged at intervals along the length direction of the housing structure 10, so that the battery housing can accommodate the four battery cells 1.
The number of the accommodating recesses 11 is not limited to this, and may be adjusted according to the working conditions and the use requirements. Alternatively, the accommodating recess 11 is two, or three, or five, or six, or seven, or more.
In this embodiment, the number of the first electrical connection portions 12 and the third electrical connection portions 21 is four, the four first electrical connection portions 12 are arranged in one-to-one correspondence with the four positive electrodes of the four electric cells 1, and the four third electrical connection portions 21 are arranged in one-to-one correspondence with the four negative electrodes of the four electric cells 1. Wherein, two adjacent first electric connection portions 12 are electrically connected with each other, two other adjacent first electric connection portions 12 are electrically connected with each other, two adjacent third electric connection portions 21 in the middle are electrically connected with each other, and an S-shaped serial loop is formed among the four first electric connection portions 12, the four third electric connection portions 21 and the four electric cores 1, so as to realize the mutual serial connection among the four electric cores 1.
The number of the first electrical connection portions 12 and the third electrical connection portions 21 is not limited to this, and may be adjusted accordingly according to the number of the cells 1.
As shown in fig. 7, the cover structure 20 includes a cover body 22 and a third electrical connector 23, the third electrical connector 23 being disposed within the cover body 22. The cover body 22 has a first avoidance notch, the first avoidance notch is located on a surface of the cover body 22 close to the housing structure 10, and at least a portion of the third electrical connection member 23 is exposed through the first avoidance notch to form a third electrical connection portion 21. Thus, the third electrical connection portion 21 is formed more simply by the above arrangement, and thus the processing difficulty of the worker and the processing cost of the cover structure 20 are reduced.
Specifically, the cover structure 20 is actually integrally injection molded such that the third electrical connector 23 is located within the cover body 22.
In this embodiment, the third electrical connector 23 is actually aluminum bar, and has a plate shape as a whole, and one plate surface of the third electrical connector 23 is exposed to the accommodating cavity to form the third electrical connection portion 21.
Specifically, the third electrical connector 23 having a plate shape is provided at both ends thereof with one third electrical connection portion 21, respectively, to form two adjacent third electrical connection portions 21 electrically connected to each other.
In the present embodiment, the outer peripheral surface of the cover body 22 is provided with a flange, and when the cover body 22 is covered on the housing structure 10, a portion of the cover body 22 extends into the accommodating recess 11. Meanwhile, the flange and the shell structure 10 are close to the outer surface limit stop of the cover body 22, and a worker can install a fastener on the flange and the shell structure 10 to fix the shell structure 10 and the cover body structure 20.
Optionally, the fastener is a bolt.
As shown in fig. 1 to 3, the electrode of the electrical core 1 is provided with a connection post 101, and the cover structure 20 has a first through hole penetrating through the cover body 22 and the third electrical connector 23, where the first through hole is used to pass through the connection post 101, so that at least part of the connection post 101 protrudes out of the accommodating cavity through the first through hole. The battery case further includes a first locking member 30, where the first locking member 30 is sleeved on the connecting post 101 and abuts against the outer surface of the cover structure 20 away from the case structure 10. Like this, locking through first retaining member 30 can be further fixed between lid structure 20 and the electric core 1 to promote the connection stability between electric core 1 and the third electric connecting piece 23, and then promoted battery module's operating stability.
Alternatively, the first locking member 30 is a bolt.
As shown in fig. 1 to 3, the cover body 22 has a first sub-penetrating hole 221, the third electrical connector 23 has a second sub-penetrating hole 231, the first sub-penetrating hole 221 is communicated with the second sub-penetrating hole 231 to form a first penetrating hole, and the first locking member 30 abuts against the outer surface of the third electrical connector 23 away from the housing structure 10. Wherein the aperture of the first sub-penetration hole 221 is larger than that of the second sub-penetration hole 231. In this way, the above-mentioned arrangement of the first sub-penetrating hole 221 and the second sub-penetrating hole 231 enables the first locking member 30 to abut against the third electrical connector 23, that is, the first locking member 30 can directly lock the third electrical connector 23 on the connection post 101, so as to further improve the electrical connection stability between the electrical core 1 and the third electrical connection portion 21.
Optionally, the first locking member 30 is made of a conductive material to further improve the stability of the electrical connection between the third electrical connector 23 and the electrical core 1.
In this embodiment, the first locking member 30 is located in the first sub-penetrating hole 221, and the battery case further includes a first insulating member 40, where the first insulating member 40 is disposed on the cover structure 20 and seals the first sub-penetrating hole 221. Thus, the first locking member 30 is integrally located inside the cover body 22, so that the outer surface of the cover body 22 is smooth and free of protrusions, and the appearance of the battery case is more attractive while the subsequent installation of the first insulating member 40 is facilitated. Meanwhile, the first insulating member 40 can prevent the user from touching the exposed charged first locking member 30, thereby improving the use safety of the battery module.
In the present embodiment, the first insulating member 40 is an insulating sheet.
As shown in fig. 1, 2, 8 and 9, the housing structure 10 includes a housing body 14 and a first electrical connector 15, and the housing body 14 has a receiving recess 11. The first electrical connector 15 is disposed in the housing body 14, the housing body 14 has a second avoidance notch, the second avoidance notch is located on an inner wall of the accommodating recess 11, and at least part of the first electrical connector 15 is exposed through the second avoidance notch to form the first electrical connection portion 12. Thus, the above arrangement makes the formation of the first electrical connection portion 12 simpler and easy to process, thereby reducing the processing difficulty of the staff and the processing cost of the housing structure 10.
In particular, the first electrical connection 15 is actually machined inside the housing structure 10 by means of injection moulding.
In the present embodiment, the first electrical connector 15 is aluminum bar.
As shown in fig. 10 and 11, the housing body 14 further has a mounting cavity provided at a distance from the accommodation recess 11, and the housing structure 10 further includes a control element 16, the control element 16 being provided in the mounting cavity. The housing structure 10 further has a fourth electrical connection portion 17 located in the mounting cavity, the fourth electrical connection portion 17 is electrically connected to the control element 16, and the first electrical connection portion 12 is electrically connected to the fourth electrical connection portion 17. In this way, the above arrangement actually enables the housing structure 10 to integrate the control element 16, and since the mounting cavity is spaced from the accommodating recess 11 (accommodating cavity), the control element 16 can be separated from the battery cell 1, so as to avoid mutual interference between the battery cell 1 and the control element 16 during the replacement process, and further improve the replacement efficiency of the staff. Meanwhile, the fourth electrical connection part 17 electrically connected with the first electrical connection part 12 can also realize electrical connection between the control element 16 and the battery cell 1, so as to ensure that the control element 16 can control the operation state of the battery cell 1.
In this embodiment, the control element 16 is a BMS (battery management system) and the related structure is not described herein.
As shown in fig. 10 and 11, the case body 14 includes a main body portion 141 and a cover 142, the main body portion 141 having a mounting recess provided on an outer surface of the main body portion 141 and a housing recess 11. The cover 142 is provided on the main body 141, and a mounting chamber is formed around at least part of the inner wall of the mounting recess and the cover 142.
Alternatively, a clamping structure may be used to connect the cover 142 and the main body 141, so that a worker can detach the cover 142 and overhaul the control element 16.
As shown in fig. 10 and 11, the main body 141 has a third escape notch provided on the inner wall of the mounting recess. The plurality of first electrical connectors 15 are arranged at intervals along the length direction and/or the width direction of the housing body 14, and at least part of at least two first electrical connectors 15 are exposed through the third avoidance notch to form a fourth electrical connection portion 17. In this way, the above-described arrangement of the first electrical connector 15 enables the series connection between the plurality of cells 1, and also enables the electrical connection between the cells 1 and the control element 16.
In the present embodiment, four first electrical connectors 15 are disposed at intervals along the length direction of the housing body 14.
As shown in fig. 12, the first electrical connectors 15 at two ends are first sub-electrical connectors 152, the whole structure of which comprises two mutually connected plate segments, wherein the two plate segments are mutually perpendicular, one plate segment is exposed into the accommodating recess 11 to form the first electrical connection part 12, the other plate segment is exposed into the mounting cavity and is provided with a plurality of connection protrusions to form the fourth electrical connection part 17, and the connection protrusions are inserted into the control element 16 to realize electrical connection.
As shown in fig. 12, the first electrical connector 15 between the two first electrical sub-connectors 152 is a second electrical sub-connector 153, the whole structure of which is only plate-shaped, and the two ends of the second electrical sub-connector 153 are respectively provided with the first electrical connection parts 12 so as to form two adjacent first electrical connection parts 12 electrically connected with each other.
The actual structure of the first electrical connector 15 is not limited to this, and the number of the cells 1 to be electrically connected to each other and the structure of the control element 16 may be adjusted accordingly.
As shown in fig. 1, 2 and 4, the electrode of the battery cell 1 is provided with a connection post 101, the housing body 14 further has a second through hole 143, the first electrical connector 15 has a third through hole 151, the second through hole 143 is communicated with the third through hole 151, and the connection post 101 extends out of the accommodating cavity through the second through hole 143 and the third through hole 151. Wherein, the aperture of the second through hole 143 is larger than that of the third through hole 151, and the battery case further includes a second locking member 50 sleeved on the connecting post 101, and the second locking member 50 is abutted with the first electrical connecting member 15 away from the outer surface of the case structure 10. In this way, the above-mentioned arrangement of the second through hole 143 and the third through hole 151 enables the second locking member 50 to directly lock the first electrical connector 15 on the connection post 101, so as to further improve the electrical connection stability between the electrical core 1 and the first electrical connection portion 12.
Optionally, the second locking member 50 is a bolt.
Optionally, the second locking member 50 is made of a conductive material to further improve the stability of the electrical connection between the first electrical connector 15 and the electrical core 1.
As shown in fig. 5, the second locking member 50 is located in the second through hole 143, and the battery case further includes a second insulating member 60, where the second insulating member 60 is disposed on the case structure 10 and blocks the second through hole 143. Thus, the second locking member 50 is integrally located inside the main body 141, so that the outer surface of the main body 141 is smooth and free of protrusions, and the appearance of the battery case is more attractive while the second insulating member 60 is convenient to be mounted subsequently. Meanwhile, the second insulating member 60 can prevent the user from touching the exposed charged second locking member 50, thereby improving the use safety of the battery module.
Optionally, the second insulating member 60 is an insulating sheet.
As shown in fig. 9 and 10, the main body portion 141 further has a fourth avoidance gap and a fifth avoidance gap, the fourth avoidance gap is disposed on an inner wall of the mounting recess, the fifth avoidance gap is disposed on an outer peripheral surface of the main body portion 141 and is spaced from the cover member 142, the housing structure 10 further includes a second electrical connector 18 and an electrical connection post 181, the second electrical connector 18 is disposed in the main body portion 141, at least a portion of the second electrical connector 18 is exposed through the fourth avoidance gap to form a fifth electrical connection portion 19, the fifth electrical connection portion 19 is electrically connected with the control element 16, at least another portion of the second electrical connector 18 is exposed through the fifth avoidance gap to form a second electrical connection portion 13, and the second electrical connection portion 13 is electrically connected with the first electrical connection portion 12 through the control element 16. The electrical connection post 181 is disposed on the second electrical connection portion 13. In this way, the above arrangement makes the formation of the fifth electric connection part 19 and the second electric connection part 13 simpler and easy to process and implement, and on the other hand, the second electric connection part 13 is electrically connected with the first electric connection part 12 through the control element 16, so that the current finally output through the second electric connection part 13 is adjusted by the control element 16, thereby improving the electric performance of the battery module. Meanwhile, the electric connection column 181 can facilitate connection between the battery module and external electric equipment.
In this embodiment, the second electrical connector 18 is aluminum bar.
In this embodiment, the second electrical connector 18 has a plate shape, and a plurality of connection protrusions are disposed on the plate surface exposed to the inside of the mounting cavity, and the connection protrusions are configured to be inserted into the control element 16 to achieve electrical connection.
In this embodiment, the housing structure 10 further has a communication connector 70 integrated therein.
It can be seen that the battery housing in this embodiment realizes high integration of each component, that is, when the control element 16 is integrated through the independent mounting cavity of the housing structure 10, the first electrical connector 15, the second electrical connector 18 and the third electrical connector 23 for realizing series connection of the plurality of battery cells 1 and electrical connection of the battery cells 1 and the control element 16 are integrated in the housing structure 10 and the cover structure 20 through injection molding, so that a worker only needs to detach the cover structure 20, the first locking member 30 and the second locking member 50 in the process of disassembling the battery cells 1, and the welding problem is not needed to be considered, and the problem that the disassembling and assembling difficulty is increased due to complex wire arrangement and component interference in part of battery modules is avoided, so that the replacing difficulty of the worker is greatly reduced, and the replacing efficiency of the worker is improved.
As shown in fig. 1, the application further provides a battery module, the battery module comprises a battery shell and an electric core 1, the electric core 1 is arranged in a containing cavity of the battery shell, and the battery shell is the battery shell.
From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:
The battery shell is provided with a containing cavity for containing the battery core, the shell structure of the battery shell is provided with a containing concave part, a first electric connecting part and a second electric connecting part, the first electric connecting part is electrically connected with the second electric connecting part, the second electric connecting part is electrically connected with electric equipment, the first electric connecting part is positioned on the inner wall of the containing concave part, and the cover body structure cover is arranged on the containing concave part and is provided with a third electric connecting part. The third electric connection part is arranged opposite to the accommodating concave part so as to form an accommodating cavity through surrounding between the cover body structure and the inner wall of the accommodating concave part, and the first electric connection part and the third electric connection part are used for being electrically connected with the electrode of the battery cell. In this way, the conductive piece, the shell structure and the cover body structure are integrated, so that the shell structure can form the first electric connection part, the second electric connection part and the cover body structure can form the third electric connection part, the serial connection between a plurality of battery cells is realized through the first electric connection part and the third electric connection part, the second electric connection part realizes the current output of the battery module, and the shell structure and the cover body structure are utilized to fix the electric connection parts, so that after the cover body structure is covered, the first electric connection part and the third electric connection part can be stably connected with the battery cells, so that the battery cells and the electric connection parts can be connected in a welding mode, a worker only needs to open the cover body structure, the replacement difficulty of the worker is greatly reduced, the replacement efficiency of the worker is improved, and the problem that the battery cells of the vehicle battery in the related technology are inconvenient to replace is solved.
In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of the present utility model, and the azimuth terms "inside and outside" refer to inside and outside with respect to the outline of each component itself.
Spatially relative terms, such as "above," "upper" and "upper surface," "above" and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the process is carried out, the exemplary term "above" may be included. Upper and lower. Two orientations below. The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (13)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422907713.8U CN223638495U (en) | 2024-11-27 | 2024-11-27 | Battery casing and battery module having it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422907713.8U CN223638495U (en) | 2024-11-27 | 2024-11-27 | Battery casing and battery module having it |
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| Publication Number | Publication Date |
|---|---|
| CN223638495U true CN223638495U (en) | 2025-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422907713.8U Active CN223638495U (en) | 2024-11-27 | 2024-11-27 | Battery casing and battery module having it |
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| Country | Link |
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| CN (1) | CN223638495U (en) |
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