Patent Application
20230327251
This application claims the priority benefit of China application no. 202210376217.7, filed on Apr. 11, 2022. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.
The present disclosure relates to the technical field of batteries, and in particular, to a battery pack and a method for assembling the battery pack.
In the related art, a battery pack may include a plurality of batteries, and during the process of loading the batteries into the battery box, a pre-pressing force will be formed between the batteries, that is, there will be a pressing force between the batteries.
However, after the battery pack is used for a long time, the battery will swell, and the squeezing force between the large surfaces of adjacent batteries will increase, which will affect the service life of batteries.
The present disclosure provides a battery pack and a method for assembling the battery pack.
According to a first aspect of the present disclosure, a battery pack is provided. The battery includes a battery box, a first battery, and a second battery. The first battery is disposed in the battery box and includes a first stack surface. The first stack surface includes a first peripheral region and a first intermediate region, and the first peripheral region is arranged around the first intermediate region. The second battery is disposed in the battery box and adjacent to the first battery, and includes a second stack surface. The second stack surface includes a second peripheral region and a second intermediate region, and the second peripheral region is arranged second intermediate region. The first stack surface and the second stack surface are arranged directly opposite to each other, so that at least a part of the first peripheral region is arranged directly opposite to the second peripheral region, and at least a part of the first intermediate region is arranged directly opposite to the second intermediate region, and a gap is defined between the at least a part of the first peripheral region and the second peripheral region.
According to a second aspect of the present disclosure, a method for assembling a battery pack is provided. The method includes the following steps. Arranging a first battery and a second battery adjacently in a battery box in a battery stacking direction of the battery pack. A gap is defined between the first battery and the second battery directly opposite to each other, such that a pre-pressing force is avoided from being generated between the first battery and the second battery, and the battery stacking direction is perpendicular to the larger surfaces of the first battery and the second battery.
For a better understanding of the disclosure, reference may be made to exemplary embodiments shown in the following drawings. The components in the drawings are not necessarily to scale and related elements may be omitted, or in some instances proportions may have been exaggerated, so as to emphasize and clearly illustrate the features described herein. In addition, related elements or components can be variously arranged, as known in the art. Further, in the drawings, like reference numerals designate same or like parts throughout the several views.
The technical solutions in the exemplary embodiments of the disclosure will be described clearly and explicitly in conjunction with the drawings in the exemplary embodiments of the disclosure. The description proposed herein is just the exemplary embodiments for the purpose of illustrations only, not intended to limit the scope of the disclosure, so it should be understood that and various modifications and variations could be made thereto without departing from the scope of the disclosure.
In the description of the present disclosure, unless otherwise specifically defined and limited, the terms “first”, “second” and the like are only used for illustrative purposes and are not to be construed as expressing or implying a relative importance. The term “plurality” is two or more. The term “and/or” includes any and all combinations of one or more of the associated listed items.
In particular, a reference to “the” object or “a” and “an” object is intended to denote also one of a possible plurality of such objects. Unless otherwise defined or described, the terms “connect”, “fix” should be broadly interpreted, for example, the term “connect” can be “fixedly connect”, “detachably connect”, “integrally connect”, “electrically connect” or “signal connect”. The term “connect” also can be “directly connect” or “indirectly connect via a medium”. For the persons skilled in the art, the specific meanings of the abovementioned terms in the present disclosure can be understood according to the specific situation.
Further, in the description of the present disclosure, it should be understood that spatially relative terms, such as “above”, “below” “inside”, “outside” and the like, are described based on orientations illustrated in the figures, but are not intended to limit the exemplary embodiments of the present disclosure.
In the context, it should also be understood that when an element or features is provided “outside” or “inside” of another element(s), it can be directly provided “outside” or “inside” of the other element, or be indirectly provided “outside” or “inside” of the another element(s) by an intermediate element.
An embodiment of the present disclosure provides a battery pack, please refer to
A battery pack in an embodiment of the present disclosure includes a battery box 10, a first battery 20 and a second battery 30. The first battery 20 and the second battery 30 are arranged in the battery box 10, and there are no other components arranged between the first battery 20 and the second battery 30 arranged adjacent to each other, so as to ensure that there is a gap 1 defined between the first battery 20 and the second battery 30, that is, during the assembly process of the first battery 20 and the second battery 30, the gap 1 may be formed between the first battery 20 and the second battery 30, so as to avoid a squeezing force from being formed between the first battery 20 and the second battery 30. In this manner, after the battery pack is used for a long time, the gap 1 between the first battery 20 and the second battery 30 may provide space allowing for the swollen batteries, thereby increasing the service life of the battery pack and improving the performance of the battery pack.
The first battery 20 includes a first stack surface 21, the second battery 30 includes a second stack surface 31, and the first stack surface 21 and the second stack surface 31 are disposed directly opposite to each other, that is, the stacking direction of the first battery 20 and the second battery 30 is substantially perpendicular to the first stack surface 21 and the second stack surface 31.
The first stack surface 21 and the second stack surface 31 are directly opposite to each other, that is, there is no third component, such as a buffer pad, a buffer bracket, etc., disposed between the first stack surface 21 and the second stack surface 31. However, the first stack surface 21 and the second stack surface 31 are directly opposite to each other, it is not excluded that during the process of fixing the first battery 20 and the second battery 30 in the battery box 10, some structures are formed between the first stack surface 21 and the second stack surface 31 due to assembly. For example, during the process of connecting the first battery 20 and the second battery 30 to the battery box 10 through an adhesive, a part of the adhesive is formed between the first stack surface 21 and the second stack surface 31 due to overflow. Nevertheless, such structure is formed due to improper or inevitable operation during the assembly process, and is not a third component provided for a special purpose, so this situation is also included in the embodiment in which the first stack surface 21 and the second stack surface 31 are directly opposite to each other. The first stack surface 21 and the second stack surface 31 are directly opposite to each other, and the emphasis lies in that there is no third component provided between the first stack surface 21 and the second stack surface 31 for a special purpose, but the formation of other structures is not excluded during the assembly process.
Referring to
Referring to
Under the circumstances, the first intermediate region 212 is substantially a rectangular body, and the first peripheral region 211 is substantially a rectangular ring, which is formed by splicing four rectangular bodies. Correspondingly, the second intermediate region 312 is substantially a rectangular body, and the second peripheral region 311 is substantially a rectangular ring, which is formed by splicing four rectangular bodies. As such, the first peripheral region 211 and the second peripheral region 311 are directly opposite to each other, and the first intermediate region 212 and the second intermediate region 312 are directly opposite to each other.
Referring to
It should be noted that during the use of the battery pack, the first battery 20 and the second battery 30 might swell. Under the circumstances, the swelling amount of the first intermediate region 212 and the second intermediate region 312 will be greater than that of the first peripheral region 211 and the second peripheral region 3110, so even if a gap 1 is formed between the first battery 20 and the second battery 30 during the assembly process, the first intermediate region 212 and the second intermediate region 312 are most likely to be in contact.
The swelling amount of the first peripheral region 211 and the second peripheral region 311 is relatively small, so the gap 1 is still formed between at least a part of the first peripheral region 211 and the second peripheral region 311.
In some embodiments, a gap 1 may be formed between the whole first peripheral region 211 and the whole second peripheral region 311.
In some embodiments, a gap 1 may be formed between a part of the first peripheral region 211 and a part of the second peripheral region 311.
In some embodiments, a gap 1 may be formed between the whole first intermediate region 212 and the whole second intermediate region 312.
In some embodiments, a gap 1 may be formed between a part of the first intermediate region 212 and a part of the second intermediate region 312.
In some embodiments, the whole first intermediate region 212 may be in contact with the whole second intermediate region 312.
It should be noted that, as the use time of the battery pack increases, the swelling amount of the first battery 20 and the second battery 30 will increase. Therefore, during the assembly process, even if there is a gap 1 between the first battery 20 and the second battery 30, and as the use time of the battery pack increases, the gap 1 between the first battery 20 and the second battery 30 will gradually decrease. For example, a part of the first intermediate region 212 may be gradually brought into contact with a part of the second intermediate region 312 while the gap therebetween decreases. Moreover, on basis that the use time further increases, the whole first intermediate region 212 may be in contact with the whole second intermediate region 312. However, during this process, since the first peripheral region 211 and the second peripheral region 311 are located in the peripheries of the first battery 20 and the second battery 30, respectively, under the circumstances, the swelling amount generated by the first peripheral region 211 and the second peripheral region 311 will be relatively small. Or, in some extreme cases, it is not excluded that the first peripheral region 211 and the second peripheral region 311 do not swell. Therefore, there will still be a gap 1 between at least a part of the first peripheral region 211 and the second peripheral region 311.
In an embodiment, as shown in
In an embodiment, the gap 1 is formed between at least a part of the second segment body 2112 and the second peripheral region 311, that is, the swelling amount of the second segment body 2112 in the width direction D2 of the first peripheral region 211 is relatively small.
The length of the first segment body 2111 in the length direction D1 of the first peripheral region 211 will be greater than the length of the second segment body 2112 in the width direction D2 of the first peripheral region 211. As the use time of the battery pack increases, the swelling amount of the first battery 20 and the second battery 30 will increase, but there will still form a gap 1 between at least a part of the first segment body 2111 and the second peripheral region 311.
As shown in
As shown in
With reference to
As shown in
It should be noted that the specific structural form of the second stack surface 31 of the second battery 30 will not be repeated here, and reference may be made to the specific structural form of the first stack surface 21 of the first battery 20 described above.
In an embodiment, the first segment body 2111 is substantially a first plane, that is, on the premise that specific manufacturing errors or configuration deformation are ignored, the first segment body 2111 is the first plane. During the use of the first battery 20, the swelling amount of the first peripheral region 211 may be small, or the swelling amount of the first peripheral region 211 may be substantially zero. Therefore, the first segment body 2111 may maintain an original structural shape, namely, the first segment body 2111 may maintain in the state of the first plane.
In an embodiment, the second segment body 2112 is substantially a second plane, that is, on the premise that specific manufacturing errors or configuration deformation are ignored, the second segment body 2112 is the second plane. During the use of the first battery 20, the swelling amount of the first peripheral region 211 will be very small, or the swelling amount of the first peripheral region 211 may be substantially zero. Therefore, the second segment body 2112 may maintain the original structural shape, namely the second segment body 2112 may maintain in the state of the second plane.
In an embodiment, the size of the gap 1 is in the range of 0.2 mm to 1 mm. On the basis of capable of allowing for a certain swelling amount between the first battery 20 and the second battery 30, the space utilization rate of the battery pack may also be ensured, so as to ensure the energy density of the battery pack.
During the assembly process of the first battery 20 and the second battery 30, if the configuration error and the manufacturing error are ignored, a gap ranging from 0.2 mm to 1 mm is defined at each position of the first battery 20 and the second battery 30, that is, a gap 1 with the size of 0.2 mm to 1 mm is formed between the first stack surface 21 and the second stack surface 31, a gap 1 with the size of 0.2 mm to 1 mm is formed between the first peripheral region 211 and the second peripheral region 311, and a gap 1 with the size of 0.2 mm to 1 mm is formed between the first intermediate region 212 and the second intermediate region 312. During the use of the first battery 20 and the second battery 30, the gap 1 between the first intermediate region 212 and the second intermediate region 312 will gradually disappear. The presence of the gap 1 may provide sufficient space for buffering. Moreover, after the first intermediate region 212 and the second intermediate region 312 are brought into contact, the first battery 20 and the second battery 30 may also be fixed to each other, so as to ensure the fixing effect of the first battery 20 and the second battery 30.
In an embodiment, the size of the gap 1 is in the range of 0.4 mm to 0.6 mm. On the basis of capable of allowing for a certain swelling amount between the first battery 20 and the second battery 30, the energy density of the battery pack may be ensured, thereby improving the use performance of the battery pack.
In some embodiments, the size of the gap 1 may be 0.2 mm, 0.21 mm, 0.25 mm, 0.3 mm, 0.4 mm, 0.41 mm, 0.42 mm, 0.45 mm, 0.5 mm, 0.55 mm, 0.6 mm, 0.61 mm, 0.65 mm, 0.7 mm, 0.8 mm, 0.9 mm, 0.92 mm, 0.95 mm, 0.98 mm, 0.99 mm or 1 mm and so on.
In an embodiment, the first intermediate region 212 and the second intermediate region 312 are not in contact, that is, there is a gap 1 between the first intermediate region 212 and the second intermediate region 312. For example, after the battery pack is assembled, a gap 1 is defined between the first intermediate region 212 and the second intermediate region 312. Or, in the early stage of use of the battery pack, the swelling amount of the first intermediate region 212 and the second intermediate region 312 will be relatively small, and there is a gap 1 between the first intermediate region 212 and the second intermediate region 312.
In an embodiment, at least a part of the first intermediate region 212 is in direct contact with the second intermediate region 312, that is, there is no gap 1 between the first intermediate region 212 and the second intermediate region 312. For example, after the battery pack is used for a long time, the swelling amount of the first intermediate region 212 the second intermediate region 312 will be relatively large, the gap 1 between the first intermediate region 212 and the second intermediate region 312 will gradually decrease, and finally, the gap 1 between the first intermediate region 212 and the second intermediate region 312 might be completely eliminated.
In an embodiment, the area of the first peripheral region 211 and the area of the second peripheral region 311 are substantially equal, and the area of the first intermediate region 212 and the area of the second intermediate region 312 are substantially equal.
As shown in
In an embodiment, as shown in
The area of the first stack surface 21 is greater than the area of the second stack surface 31, a first recess 32 is formed at one side of the second battery 30 facing the first stack surface 21, and the sum of the area of the bottom wall of the first recess 32 and the area of the second stack surface 31 may be equal to the area of the first stack surface 21. By arranging part of the first terminal assembly 22 in the first recess 32, the first recess 32 may be formed as avoidance for the first terminal assembly 22, so as to ensure that the first battery 20 and the second battery 30 may be conveniently arranged in the battery box 10, and the arrangement of the battery pack will not be affected by the configuration position of the first terminal assembly 22.
In an embodiment, as shown in
As shown in
In an embodiment, the battery pack further includes a conductive connector, the conductive connector is connected to the first battery 20, and the conductive connector is connected to the second battery 30, so as to fix the first battery 20 and the second battery 30. In this manner, it may be ensured that the first battery 20 and the second battery 30 may be further fixed through the conductive connector, so as to ensure that the first battery 20 and the second battery 30 may be reliably fixed in the battery box 10.
The conductive connector may include a circuit board, and the circuit board may include structures such as a voltage acquisition part, a temperature acquisition part, etc. In this case, the circuit board may be connected to the first battery 20 and the second battery 30. For example, a voltage acquisition part of the circuit board may be directly connected to the first battery 20, another voltage acquisition part of the circuit board may be directly connected to the second battery 30, and the position of the circuit board is relatively fixed. For example, the circuit board may be fixed on the battery box 10, under the circumstances, the first battery 20 and the second battery 30 may be fixed on the battery box 10 through the circuit board, so as to ensure that the first battery 20 and the second battery 30 may be reliably fixed in the battery box 10.
In an embodiment, as shown in
As shown in
It should be noted that the bus bar may connect three or more than three batteries, and the bus bar may be fixed on the battery box 10, so that the bus bar may fix various batteries, so as to ensure that each battery is reliably fixed on the battery box 10.
It should be noted that the first terminal assembly of the first battery 20 and the second terminal assembly of the second battery 30 may also be disposed on the top ends of the first battery 20 and the second battery 30 respectively, the disclosure is not limited thereto, and the type of corresponding battery may be selected according to actual requirement.
In an embodiment, the first battery 20 is bonded to the battery box 10, and the second battery 30 is bonded to the battery box 10, which not only facilitates connection, but also ensures that the first battery 20 and the second battery 30 are reliably fixed on the battery box 10.
In an embodiment, as shown in
The first battery 20 and the second battery 30 may be bonded to the fixing bracket 50, the first battery 20 and the second battery 30 may be clamped on the fixing bracket 50, and the first battery 20 and the second battery 30 may be arranged on the fixing bracket 50 and then arranged in battery box 10. Not only the configuration is convenient, but also the first battery 20 and the second battery 30 may be reliably fixed on the battery box 10 through the fixing bracket 50.
In an embodiment, as shown in
It should be noted that the first battery 20 and the second battery 30 are fixed on the fixing bracket 50, and the fixing bracket 50 is detachably arranged in the battery box 10, so as to ensure that the first battery 20 and the second battery 30 are stably arranged in the battery box 10. In this manner, problems such as shaking of the first battery 20 and the second battery 30 may be avoided when the battery pack is in normal use. When maintenance is performed on at least one of the first battery 20 and the second battery 30, the connection between the fixing bracket 50 and the battery box 10 may be released, so that the fixing bracket 50 is detached from the battery box 10, and the first battery 20 and the second battery 30 are taken out from the battery box 10, and subsequent maintenance may be performed. For example, at least one of the first battery 20 and the second battery 30 on the fixing bracket 50 is detached and replaced by at least one of new first battery 20 and new second battery 30, and at least one of the new first battery 20 and the new second battery 30 is arranged on the original fixing bracket 50, and afterwards, the fixing bracket 50 is subsequently arranged on the battery box 10. Or, the first battery 20, the second battery 30 and the fixing bracket 50 are directly replaced with new ones, and then arranged on the battery box 10.
The first battery 20, the second battery 30 and the fixing bracket 50 may not be fixedly connected to the third battery 60, so that when the fixing bracket 50 is removed from the battery box 10, the third battery 60 will not block the first battery 20 and the second battery 30 from being removed from the battery box 10 along with the fixing bracket 50 simultaneously.
In an embodiment, as shown in
It should be noted that other batteries may be arranged on the fixing bracket 50 on which the first battery 20 and the second battery 30 are fixed, and the arrangement of other adjacent batteries may be derived from the arrangement of the first battery 20 and the second battery 30.
Correspondingly, other batteries may be arranged on the fixing bracket 50 on which the third battery 60 is fixed. Only a part of the battery box 10 is shown in
In an embodiment, the first battery 20, the second battery 30 and the third battery 60 are all quadrangular prism batteries, so that the internal space of the battery box 10 may be utilized to the maximum extent to meet the energy capacity. A battery includes a cell and an electrolyte, and is the smallest unit capable of performing electrochemical reactions such as charge/discharge. The cell refers to a unit formed by winding or laminating a stack portion, and the stack portion includes a first electrode, a separator and a second electrode. When the first electrode is a positive electrode, the second electrode is a negative electrode. The polarities of the first electrode and the second electrode may be interchanged. The first battery 20, the second battery 30, and the third battery 60 may be identical. The battery pack may further include other batteries, and the number of batteries is not limited in the disclosure.
The first battery 20, the second battery 30 and the third battery 60 are all quadrangular prism batteries, that is, the first battery 20, the second battery 30 and the third battery 60 are substantially square batteries. A square battery may include six surfaces, and two adjacent surfaces may be directly connected, that is, there may be no transition surface provided between the two adjacent surfaces. It may be further considered that the edges of the two adjacent surfaces are directly connected, and the two adjacent surfaces are set vertically. The square battery may include six surfaces and multiple transition surfaces, that is, two adjacent surfaces may be connected through the transition surface, and the transition surface may be a curved surface, and further, the transition surfaces may be an arc surface.
Taking the first battery 20 as an example, as shown in
An embodiment of the present disclosure further provides a method for assembling a battery pack, as shown in
In the assembly method for the battery pack in an embodiment of the present disclosure, the first battery 20 and the second battery 30 are arranged adjacently in a battery box 10, and the first battery 20 and the second battery 30 are directly opposite to each other, that is, there are no other components arranged between the adjacently arranged first battery 20 and second battery 30, as such, it may be ensured that the gap 1 is defined between the first battery 20 and the second battery 30. In this manner, it is possible to omit the pre-pressing force when assembling the first battery 20 and the second battery 30. After the battery pack is used for a long time, the gap 1 between the first battery 20 and the second battery 30 may provide space allowing for swollen batteries, thereby increasing the service life of the battery pack, and improving the performance of the battery pack.
It should be noted that the first battery 20 and the second battery 30 are arranged adjacently in the battery box 10, and the disclosure provides no limitation to the sequence of arranging the first battery 20 and the second battery 30. For example, the first battery 20 and the second battery 30 may be arranged in the battery box 10 in sequence, or the first battery 20 and the second battery 30 may be arranged in the battery box 10 simultaneously, or the second battery 30 and the first battery 20 may be arranged in the battery box 10 in sequence.
There is the gap 1 formed between the first battery 20 and the second battery 30, that is, no squeezing force is generated between the first battery 20 and the second battery 30 during the assembly process. In this manner, it may be ensured that the first battery 20 and the second battery 30 may be individually arranged in the battery box 10, so as to provide a buffer space for swelling of the first battery 20 and the second battery 30.
The larger surface of the first battery 20 is the surface with the largest area of the first battery 20, and the larger surface of the second battery 30 is the surface with the largest area of the second battery 30. Taking the first battery 20 as an example, if the first battery 20 is a quadrangular prism battery, and the first battery 20 is not provided with any recess, then the first battery 20 may have two opposite larger surfaces. For example, the first stack surface 21 and another surface opposite thereto of the first battery 20 are two opposite larger surfaces of the first battery 20. As shown in
In an embodiment, the step of arranging the first battery 20 and the second battery 30 adjacently in the battery box 10 includes: arranging the first battery 20 and the second battery 30 in the battery box 10 in sequence, so as to ensure that a gap 1 may be formed between the first battery 20 and the second battery 30.
In an embodiment, the step of arranging the first battery 20 and the second battery 30 adjacently in the battery box 10 includes: arranging the first battery 20 and the second battery 30 simultaneously in the battery box 10, which not only improves the configuration efficiency, but also makes it possible to control the configuration positions of the first battery 20 and the second battery 30.
The first battery 20 and the second battery 30 may be arranged simultaneously through one assembly tool. For example, the first battery 20 and the second battery 30 may be arranged simultaneously through a clamping jaw. Alternatively, the first battery 20 and the second battery 30 may be arranged on a fixed structure first, and then the fixed structure is arranged on the battery box 10, so that the first battery 20 and the second battery 30 are simultaneously arranged on the battery box 10.
In an embodiment, the step of arranging the first battery 20 and the second battery 30 adjacently in the battery box 10 further includes: bonding the first battery 20 to the battery box 10 and bonding the second battery 30 to the battery box 10. Not only that the connection is convenient, but also it may be ensured that the first battery 20 and the second battery 30 are reliably fixed on the battery box 10.
In an embodiment, the step of arranging the first battery 20 and the second battery 30 adjacently in the battery box 10 further includes: connecting the first battery 20 and the second battery 30 to the battery box 10 through the fixing bracket 50. Not only that the configuration is convenient, but also the stability of the configuration can be ensured.
The first battery 20 and the second battery 30 may be bonded on the fixing bracket 50, the first battery 20 and the second battery 30 may be clamped on the fixing bracket 50, and the first battery 20 and the second battery 30 may be arranged on the fixing bracket 50, and then arranged in the battery box 10. Not only the configuration is convenient, but also the first battery 20 and the second battery 30 may be reliably fixed on the battery box 10 through the fixing bracket 50.
In an embodiment, the fixing bracket 50 is detachably connected to the battery box 10, so that after the connection between the fixing bracket 50 and the battery box 10 is released, the first battery 20 and the second battery 30 are simultaneously detached along with the fixing bracket 50 from the battery box 10, so that it is convenient to replace the first battery 20 and the second battery 30.
In an embodiment, the assembling method for the battery pack further includes: arranging the third battery 60 on the battery box 10. The third battery 60 is not fixedly connected to the fixing bracket 50, so as to prevent the third battery 60 from blocking the first battery 20 and the second battery 30 from being simultaneously detached from the battery box 10 along with the fixing bracket 50. In this manner, the first battery 20 and the second battery 30 may be removed separately, thereby facilitating the maintenance of the battery pack.
The first battery 20 and the second battery 30 are fixed on the fixing bracket 50, and the fixing bracket 50 is detachably arranged in the battery box 10, so as to ensure that the first battery 20 and the second battery 30 are stably arranged in the battery box 10. When the battery pack is in normal use, problems such as shaking of the first battery 20 and the second battery 30 may be avoided. When maintenance is performed on at least one of the first battery 20 and the second battery 30, the connection between the fixing bracket 50 and the battery box 10 may be released, so that the fixing bracket 50 can be detached from the battery box 10, and that the first battery 20 and the second battery 30 are taken out from the battery box 10, and subsequent maintenance may be performed. For example, at least one of the first battery 20 and the second battery 30 on the fixing bracket 50 is removed and replaced by at least one of new first battery 20 and new second battery 30, and the at least one of the new first battery 20 and the new second battery 30 is arranged on the original fixing bracket 50, and afterwards, the fixing bracket 50 is subsequently arranged on the battery box 10. Or, the first battery 20, the second battery 30 and the fixing bracket 50 are directly replaced with new ones, and then arranged on the battery box 10.
The first battery 20, the second battery 30 and the fixing bracket 50 may not be fixedly connected to the third battery 60, so that when the fixing bracket 50 is removed from the battery box 10, the third battery 60 will not block the first battery 20 and the second battery 30 from being simultaneously removed from the battery box 10 along with the fixing bracket 50.
In an embodiment, the assembling method for the battery pack further includes: fixing the third battery 60 to another fixing bracket 50. The fixing bracket 50 is detachably arranged in the battery box 10, so that the third battery 60 and the fixing bracket may be removed simultaneously from the battery box 10, so as to facilitate the maintenance of the battery pack. There may be a plurality of third batteries 60, and gaps may be formed between adjacent third
batteries 60.
In an embodiment, the assembling method for the battery pack further includes: connecting the first battery 20 and the second battery 30 through a conductive connector. As such, it is ensured that the first battery 20 and the second battery 30 may be further fixed through the conductive connector, and it may be ensured that the first battery 20 and the second battery 30 may be reliably fixed in the battery box 10.
The conductive connector may include a circuit board, and the circuit board may include structures such as a voltage acquisition part, a temperature acquisition part, etc. In this case, the circuit board may be connected to the first battery 20 and the second battery 30. For example, a voltage acquisition part of the circuit board may be directly connected to the first battery 20, another voltage acquisition part of the circuit board may be directly connected to the second battery 30, and the position of the circuit board is relatively fixed. For example, the circuit board may be fixed on the battery box 10, under the circumstances, the first battery 20 and the second battery 30 may be fixed on the battery box 10 through the circuit board, so as to ensure that the first battery 20 and the second battery 30 may be reliably fixed in the battery box 10.
In an embodiment, the assembling method for the battery pack further includes: connecting the first battery 20 and the second battery 30 through the bus bar 40. As such, the first battery 20 and the second battery 30 may be fixed through the bus bar 40, and it may be ensured that the first battery 20 and the second battery 30 have relatively fixed positions.
The first battery 20 and the second battery 30 are connected through the bus bar 40, which may be arranged before arranging the first battery 20 and the second battery 30 adjacently in the battery box 10. Alternatively, the first battery 20 and the second battery 30 are connected through the bus bar 40, which may be arranged after arranging the first battery 20 and the second battery 30 adjacently in the battery box 10.
It should be noted that it is not excluded that the conductive connector may be simultaneously connected to the third battery 60, the disclosure is not limited thereto, and a corresponding conductive connector may be selected to connect the batteries according to actual needs.
In an embodiment, an assembly method for battery pack is applied to form the above-described battery pack.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. The disclosure is intended to cover any variations, uses or adaptations of the disclosure. These variations, uses, or adaptations follow the general principles of the disclosure and include common general knowledge or conventional technical means in the art that are not disclosed in the present disclosure. The specification and embodiments are illustrative, and the real scope and spirit of the present disclosure is defined by the appended claims.
It should be understood that the disclosure is not limited to the precise structures that have been described above and shown in the drawings, and various modifications and variations can be made without departing from the scope thereof. The scope of the disclosure is limited only by the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202210376217.7 | Apr 2022 | CN | national |
