CN110600666A - Battery pack and method for manufacturing same - Google Patents
Battery pack and method for manufacturing same Download PDFInfo
- Publication number
- CN110600666A CN110600666A CN201910898831.8A CN201910898831A CN110600666A CN 110600666 A CN110600666 A CN 110600666A CN 201910898831 A CN201910898831 A CN 201910898831A CN 110600666 A CN110600666 A CN 110600666A
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- CN
- China
- Prior art keywords
- battery module
- battery
- type
- positive terminal
- negative terminal
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
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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
Abstract
The present disclosure provides a battery pack and a method of manufacturing the same. The battery pack includes: the battery module type of at least two battery modules is different from each other, the positive terminal and the negative terminal of each battery module are respectively provided with a symbol associated with the corresponding battery module type, and the at least two battery modules are arranged according to a preset sequence; and the electric connecting piece is arranged between the two adjacent battery modules and is used for electrically connecting the two terminals with the same sign and opposite polarities on the two adjacent battery modules. The battery pack can effectively avoid the short circuit condition between adjacent battery modules in the battery pack.
Description
Technical Field
The disclosure relates to the field of batteries, and in particular relates to a battery pack and a manufacturing method thereof.
Background
Currently, a plurality of battery modules are provided in a battery pack. Between two adjacent battery modules, the positive electrode of one battery module is electrically connected with the negative electrode of the other battery module, so that the battery modules are connected in series, and the battery pack can provide larger working voltage.
Disclosure of Invention
The inventor has noted that, when a plurality of battery modules are included in a battery pack, a worker is likely to make a connection error when connecting the battery modules in series, thereby causing a short-circuit situation to occur.
Therefore, the scheme capable of effectively avoiding short circuit of each battery module in the battery pack in the series connection process is provided.
According to a first aspect of embodiments of the present disclosure, there is provided a battery pack including: the battery module type of at least two battery modules is different from each other, symbols associated with the corresponding battery module type are respectively arranged on the positive terminal and the negative terminal of each battery module, and the at least two battery modules are arranged according to a preset sequence; and the electric connecting piece is arranged between the two adjacent battery modules and is used for electrically connecting the two terminals with the same sign and opposite polarities on the two adjacent battery modules.
In some embodiments, among the at least two battery modules, a positive terminal not electrically connected to a negative terminal of an adjacent battery module is used as the positive terminal of the battery pack, and a negative terminal not electrically connected to a positive terminal of an adjacent battery module is used as the negative terminal of the battery pack.
In some embodiments, the positive terminal and the negative terminal of each battery module are located on both sides of each battery module, respectively.
In some embodiments, the battery module types include a first battery module type, a second battery module type, a third battery module type, and a fourth battery module type; under the condition that a first battery module belongs to a first battery module type, a first symbol is arranged on a positive terminal of the first battery module, and a second symbol is arranged on a negative terminal of the first battery module; under the condition that the second battery module belongs to the second battery module type, a second symbol is arranged on the positive terminal and the negative terminal of the second battery module; under the condition that a third battery module belongs to a third battery module type, a second symbol is arranged on a positive terminal of the third battery module, and a first symbol is arranged on a negative terminal of the third battery module; in the case where the fourth battery module is of a fourth battery module type, a first symbol is provided on both the positive terminal and the negative terminal of the fourth battery module.
In some embodiments, the predetermined order includes at least one of the following setting conditions: if the battery pack comprises a first battery module, arranging the second battery module and the first battery module adjacently in a preset direction; if the battery pack comprises a second battery module, arranging a third battery module adjacent to the second battery module in the preset direction; if the battery pack comprises a third battery module, arranging the fourth battery module and the third battery module adjacently in the preset direction; and if the battery pack comprises a fourth battery module, arranging the first battery module and the fourth battery module adjacently in the preset direction.
In some embodiments, in two adjacent battery modules, the positive terminal of one battery module is located on the same side as the negative terminal of the other battery module, and the negative terminal of the one battery module is located on the same side as the positive terminal of the other battery module.
In some embodiments, the positive and negative terminals of each battery module are located on the same side of each battery module.
In some embodiments, the battery module types include a fifth battery module type and a sixth battery module type; under the condition that a fifth battery module belongs to a fifth battery module type, a first symbol is arranged on a negative terminal of the fifth battery module, and a second symbol is arranged on a positive terminal of the fifth battery module; and under the condition that the sixth battery module belongs to the type of the sixth battery module, a second symbol is arranged on a negative terminal of the sixth battery module, and a first symbol is arranged on a positive terminal of the sixth battery module.
In some embodiments, the predetermined order comprises: disposing the sixth battery module adjacent to the fifth battery module.
In some embodiments, the positive terminal of one battery module is adjacent to the negative terminal of the other battery module in two adjacent battery modules.
According to a second aspect of the embodiments of the present disclosure, there is provided a method of manufacturing a battery pack, including: providing at least two battery modules, wherein the battery module types of two adjacent battery modules are different from each other, symbols associated with the corresponding battery module types are respectively arranged on a positive terminal and a negative terminal of each battery module, and the at least two battery modules are arranged in a preset sequence; two terminals with the same sign and opposite polarity on two adjacent battery modules are electrically connected.
In some embodiments, the positive terminal and the negative terminal of each battery module are located on both sides of each battery module, respectively; the battery module types include a first battery module type, a second battery module type, a third battery module type, and a fourth battery module type; under the condition that a first battery module belongs to a first battery module type, a first symbol is arranged on a positive terminal of the first battery module, and a second symbol is arranged on a negative terminal of the first battery module; under the condition that the second battery module belongs to the second battery module type, a second symbol is arranged on the positive terminal and the negative terminal of the second battery module; under the condition that a third battery module belongs to a third battery module type, a second symbol is arranged on a positive terminal of the third battery module, and a first symbol is arranged on a negative terminal of the third battery module; in the case where the fourth battery module is of a fourth battery module type, a first symbol is provided on both the positive terminal and the negative terminal of the fourth battery module.
In some embodiments, the predetermined order includes at least one of the following setting conditions: if the battery pack comprises a first battery module, arranging the second battery module adjacent to the first battery module; if the battery pack comprises a second battery module, arranging a third battery module adjacent to the second battery module; if the battery pack comprises a third battery module, arranging the fourth battery module and the third battery module adjacently; if the battery pack comprises a fourth battery module, arranging the first battery module and the fourth battery module adjacently; in two adjacent battery modules, the positive terminal of one battery module and the negative terminal of the other battery module are located on the same side, and the negative terminal of the one battery module and the positive terminal of the other battery module are located on the same side.
In some embodiments, the positive and negative terminals of each battery module are located on the same side of each battery module, respectively; the battery module types include a fifth battery module type and a sixth battery module type; under the condition that a fifth battery module belongs to a fifth battery module type, a first symbol is arranged on a negative terminal of the fifth battery module, and a second symbol is arranged on a positive terminal of the fifth battery module; and under the condition that the sixth battery module belongs to the type of the sixth battery module, a second symbol is arranged on a negative terminal of the sixth battery module, and a first symbol is arranged on a positive terminal of the sixth battery module.
In some embodiments, the predetermined order comprises: disposing the sixth battery module adjacent to the fifth battery module; in the adjacent two battery modules, the positive terminal of one battery module is adjacent to the negative terminal of the other battery module.
Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a battery pack according to an embodiment of the present disclosure;
fig. 2 is a schematic structural view of a battery pack according to another embodiment of the present disclosure;
fig. 3 is a schematic structural view of a battery pack according to yet another embodiment of the present disclosure;
fig. 4 is a schematic structural view of a battery pack according to yet another embodiment of the present disclosure;
fig. 5 is a schematic structural view of a battery pack according to yet another embodiment of the present disclosure;
fig. 6 is a schematic structural view of a battery pack according to yet another embodiment of the present disclosure;
fig. 7 is a schematic structural view of a battery pack according to yet another embodiment of the present disclosure;
fig. 8 is a schematic structural view of a battery pack according to yet another embodiment of the present disclosure;
fig. 9 is a schematic flow chart illustrating a method of manufacturing a battery pack according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Fig. 1 is a schematic structural diagram of a battery pack according to an embodiment of the present disclosure. As shown in fig. 1, the battery pack includes at least two battery modules therein.
In the embodiment shown in fig. 1, the positive and negative terminals of each battery module are located on both sides of each battery module, respectively.
It should be noted here that the battery module types of the two adjacent battery modules are different from each other, and a symbol associated with the corresponding battery module type is provided on the positive terminal and the negative terminal of each battery module. The battery modules in the battery pack are arranged in a predetermined order.
The battery pack further comprises an electric connector arranged between two adjacent battery modules and used for electrically connecting two terminals with the same sign and opposite polarities on the two adjacent battery modules.
In some embodiments, as shown in fig. 1, the battery module 11 is of a first battery module type, i.e., an AB type. A first symbol a is provided on the positive terminal of the battery module 11, and a second symbol B is provided on the negative terminal of the battery module 11.
The battery module 12 is a second battery module type, namely, a BB type. A second symbol B is provided on the positive terminal of the battery module 12, and a second symbol B is provided on the negative terminal of the battery module 12.
The battery module 13 is a third battery module type, i.e., BA type. The positive terminal of the battery module 13 is provided with a second symbol B, and the negative terminal of the battery module 13 is provided with a first symbol a.
The battery module 14 is a fourth battery module type, i.e., AA type. A first symbol a is provided on the positive terminal of the battery module 14, and a first symbol a is provided on the negative terminal of the battery module 14.
The battery module 15 is of a first battery module type, i.e., an AB type, the same as the type of the battery module 11. Battery module 16 is of a second battery module type, BB, the same type as battery module 12.
In some embodiments, in two adjacent battery modules, the positive terminal of one battery module is located on the same side as the negative terminal of the other battery module, and the negative terminal of one battery module is located on the same side as the positive terminal of the other battery module. Thereby facilitating electrical connection between the respective terminals of the adjacent battery modules.
For example, as shown in fig. 1, the negative electrode of the battery module 11 and the positive electrode of the battery module 12 are located on the same side and are electrically connected by an electrical connector 101. The negative pole of the battery module 12 and the positive pole of the battery module 13 are on the same side and are electrically connected by an electrical connector 102. The negative pole of battery module 13 and the positive pole of battery module 14 are on the same side and are electrically connected by electrical connector 103. The negative pole of battery module 14 and the positive pole of battery module 15 are on the same side and are electrically connected by electrical connector 104. The negative pole of battery module 15 and the positive pole of battery module 16 are on the same side and are electrically connected by electrical connector 105.
The positive terminal of the battery module 11, which is not electrically connected to the negative terminal of the adjacent battery module, is defined as the positive terminal of the battery pack, and the negative terminal of the battery module 16, which is not electrically connected to the positive terminal of the adjacent battery module, is defined as the negative terminal of the battery pack.
Here, when the battery modules include an AB type, a BB type, a BA type, and an AA type, the battery modules are arranged in the order of [ AB type, BB type, BA type, and AA type ], and the AB type battery module is set as the next battery module adjacent to the AA type battery module, and so on. For example, as shown in fig. 1, in the case where the first battery module 11 is an AB type, the BB type battery modules 12 are disposed adjacent to the battery modules 11 in a predetermined direction in a predetermined order (for example, the battery modules 12 are disposed on the right side of the battery modules 11). Next, the BA-type battery module 13 is disposed adjacent to the battery module 12 in a predetermined direction (for example, the battery module 13 is disposed on the right side of the battery module 12), and the AA-type battery module 14 is disposed adjacent to the battery module 13 in a predetermined direction (for example, the battery module 14 is disposed on the right side of the battery module 13). Next, still in the order described above, the AB-type battery module 15 is selected to be disposed adjacent to the battery module 14 in the predetermined direction (for example, the battery module 15 is disposed on the right side of the battery module 14), the AB-type battery module 16 is selected to be disposed adjacent to the battery module 15 in the predetermined direction (for example, the battery module 16 is disposed on the right side of the battery module 15), and so on, whereby a predetermined number of battery modules are disposed in the battery pack.
For convenience of explanation, 6 battery modules are included in the battery pack shown in fig. 1. It should be noted that the battery pack may include four or more battery modules, or only two battery modules or three battery modules may be provided in one battery pack as needed. In this case, the battery modules are still arranged in the above-described order.
Fig. 2 is a schematic structural diagram of a battery pack according to another embodiment of the present disclosure.
Fig. 2 is different from fig. 1 in that two battery modules are provided in the battery pack in the embodiment shown in fig. 2. In the case where the first battery module 11 is an AB type, the BB type battery module 12 is disposed adjacent to the battery module 11 in a predetermined direction (for example, the battery module 12 is disposed on the right side of the battery module 11) in a predetermined order, and the negative electrode of the battery module 11 is electrically connected to the positive electrode of the battery module 12 through the electrical connector 101.
Fig. 3 is a schematic structural diagram of a battery pack according to yet another embodiment of the present disclosure.
Fig. 3 is different from fig. 2 in that three battery modules are provided in the battery pack in the embodiment shown in fig. 3. In the case where the first battery module 11 is an AB type, the BB type battery module 12 is disposed adjacent to the battery module 11 in a predetermined direction (for example, the battery module 12 is disposed on the right side of the battery module 11) in a predetermined order, and the negative electrode of the battery module 11 is electrically connected to the positive electrode of the battery module 12 through the electrical connector 101. Next, the BA-type battery module 13 is disposed adjacent to the battery module 12 in a predetermined direction (for example, the battery module 13 is disposed on the right side of the battery module 12), and the negative electrode of the battery module 12 is electrically connected to the positive electrode of the battery module 13 through the electrical connector 102.
It should be noted that in the embodiments of fig. 1 to 3, the AB-type battery module is used as the first battery module in the battery pack, and then the corresponding battery modules are arranged behind the AB-type battery module in a predetermined order. In some embodiments, the first battery module of the battery pack may be a BB type battery module, a BA type battery module, or an AA type battery module. After the first battery module is determined, the different types of battery modules are still arranged in sequence according to the above sequence.
Fig. 4 is a schematic structural diagram of a battery pack according to yet another embodiment of the present disclosure.
Fig. 4 is different from fig. 1 in that, in the embodiment shown in fig. 4, the first battery module in the battery pack is a BB-type battery module. For ease of illustration, 6 battery modules are shown in fig. 4.
In the case where the first battery module 41 is of the BB type, the BA type battery module 42 is disposed adjacent to the battery module 41 in a predetermined direction (for example, the battery module 42 is disposed on the right side of the battery module 41) in a predetermined order, and the negative electrode of the battery module 41 is electrically connected to the positive electrode of the battery module 42 through the electrical connector 401. Next, the AA-type battery module 43 is disposed adjacent to the battery module 42 in a predetermined direction (for example, the battery module 43 is disposed at the right side of the battery module 42), and the negative electrode of the battery module 42 is electrically connected to the positive electrode of the battery module 43 through the electrical connector 402. The AB-type battery module 44 is disposed adjacent to the battery module 43 in a predetermined direction (for example, the battery module 44 is disposed at the right side of the battery module 43), and the negative electrode of the battery module 43 is electrically connected to the positive electrode of the battery module 44 through the electrical connection member 403. The BB type battery module 45 is disposed adjacent to the battery module 44 in a predetermined direction (for example, the battery module 45 is disposed on the right side of the battery module 44), and the negative electrode of the battery module 44 is electrically connected to the positive electrode of the battery module 45 through the electrical connector 404. The BA-type battery module 46 is disposed adjacent to the battery module 45 in a predetermined direction (for example, the battery module 46 is disposed at the right side of the battery module 45), and the negative electrode of the battery module 45 is electrically connected to the positive electrode of the battery module 46 by the electrical connection member 405.
Fig. 5 is a schematic structural diagram of a battery pack according to yet another embodiment of the present disclosure.
Fig. 5 is different from fig. 1 in that, in the embodiment shown in fig. 5, the leading battery module in the battery pack is a BA-type battery module. For ease of illustration, 6 battery modules are shown in fig. 5.
In the case where the first battery module 51 is the BA type, the AA type battery module 52 is disposed adjacent to the battery module 51 in a predetermined direction (for example, the battery module 52 is disposed at the right side of the battery module 51) in a predetermined order, and the negative electrode of the battery module 51 is electrically connected to the positive electrode of the battery module 52 through the electrical connector 501. Next, the AB-type battery module 53 is disposed adjacent to the battery module 52 in a predetermined direction (for example, the battery module 53 is disposed on the right side of the battery module 52), and the negative electrode of the battery module 52 is electrically connected to the positive electrode of the battery module 53 through the electrical connector 502. The BB type battery module 54 is disposed adjacent to the battery module 53 in a predetermined direction (for example, the battery module 54 is disposed on the right side of the battery module 53), and the negative electrode of the battery module 53 is electrically connected to the positive electrode of the battery module 54 through the electrical connector 503. The BA-type battery module 55 is disposed adjacent to the battery module 54 in a predetermined direction (for example, the battery module 55 is disposed at the right side of the battery module 54), and the negative electrode of the battery module 54 is electrically connected to the positive electrode of the battery module 55 through the electrical connector 504. The BB type battery module 56 is disposed adjacent to the battery module 55 in a predetermined direction (for example, the battery module 56 is disposed on the right side of the battery module 55), and the negative electrode of the battery module 55 is electrically connected to the positive electrode of the battery module 56 by an electrical connector 505.
Fig. 6 is a schematic structural diagram of a battery pack according to yet another embodiment of the present disclosure.
Fig. 6 is different from fig. 1 in that, in the embodiment shown in fig. 6, the leading battery module in the battery pack is an AA-type battery module. For ease of illustration, 6 battery modules are shown in fig. 6.
In the case where the first battery module 61 is of the AA type, the AB type battery module 62 is disposed adjacent to the battery module 61 in a predetermined direction (for example, the battery module 62 is disposed at the right side of the battery module 61) in a predetermined order, and the negative electrode of the battery module 61 is electrically connected to the positive electrode of the battery module 62 through the electrical connector 601. Next, the BB type battery module 63 is disposed adjacent to the battery module 62 in a predetermined direction (for example, the battery module 63 is disposed on the right side of the battery module 62), and the negative electrode of the battery module 62 is electrically connected to the positive electrode of the battery module 63 through the electrical connector 602. The BA-type battery module 64 is disposed adjacent to the battery module 63 in a predetermined direction (for example, the battery module 64 is disposed at the right side of the battery module 63), and the negative electrode of the battery module 63 is electrically connected to the positive electrode of the battery module 64 through the electrical connector 603. The AA-type battery module 65 is disposed adjacent to the battery module 64 in a predetermined direction (for example, the battery module 65 is disposed at the right side of the battery module 64), and the negative electrode of the battery module 64 is electrically connected to the positive electrode of the battery module 65 through the electrical connector 604. The AB-type battery module 66 is disposed adjacent to the battery module 65 in a predetermined direction (for example, the battery module 66 is disposed on the right side of the battery module 65), and the negative electrode of the battery module 65 is electrically connected to the positive electrode of the battery module 66 through the electrical connector 605.
Fig. 7 is a schematic structural view of a battery pack according to still another embodiment of the present disclosure. Fig. 7 differs from fig. 1 in that in the embodiment of fig. 7, the positive and negative terminals of each battery module are located on the same side of each battery module, respectively.
As shown in fig. 7, the battery module 71 is a fifth battery module type, i.e., an AB type. A first symbol a is provided on the positive terminal of the battery module 71, and a second symbol B is provided on the negative terminal of the battery module 71.
The battery module 72 is a sixth battery module type, i.e., BA type. A second symbol B is provided on the positive terminal of the battery module 72, and a second symbol B is provided on the negative terminal of the battery module 72.
The battery modules 73, 75 are of a fifth battery module type, i.e., an AB type, the same as the battery module 71. The battery module 74 is a sixth battery module type, i.e., BA type, the same as the battery module 72.
In some embodiments, as shown in fig. 7, the positive terminal of one battery module is adjacent to the negative terminal of the other battery module in two adjacent battery modules. Thereby facilitating electrical connection between the respective terminals of the adjacent battery modules.
For example, as shown in fig. 7, the positive terminal of battery module 71 and the negative terminal of battery module 72 are adjacent and electrically connected by electrical connector 701. The positive terminal of battery module 72 and the negative terminal of battery module 73 are adjacent and electrically connected by electrical connection 702. The positive terminal of cell module 73 is adjacent to the negative terminal of cell module 74 and is electrically connected by electrical connection 703. The positive terminal of battery module 74 is adjacent to the negative terminal of battery module 75 and is electrically connected by electrical connector 704.
The negative terminal of the battery module 71 that is not electrically connected to the positive terminal of the adjacent battery module is set as the negative terminal of the battery pack, and the positive terminal of the battery module 75 that is not electrically connected to the negative terminal of the adjacent battery module is set as the positive terminal of the battery pack.
Here, in the case where the battery modules have an AB type and a BA type, the battery modules are arranged in the order of [ AB type, BA type ], and the AB type battery module is set as the next battery module adjacent to the BA type battery module, and so on. For example, as shown in fig. 7, in the case where the first battery module 71 is of the AB type, the BA type battery module 72 is disposed adjacent to the battery modules 71 in a predetermined direction in a predetermined order (for example, the battery module 72 is disposed on the right side of the battery modules 71). Next, the AB-type battery module 73 is disposed adjacent to the battery module 72 in a predetermined direction (for example, the battery module 73 is disposed on the right side of the battery module 72), and the BA-type battery module 74 is disposed adjacent to the battery module 73 in a predetermined direction (for example, the battery module 74 is disposed on the right side of the battery module 73). Next, still in the order described above, the AB-type battery module 75 is selected to be disposed adjacent to the battery module 74 in a predetermined direction (for example, the battery module 75 is disposed on the right side of the battery module 74), and so on, thereby disposing a predetermined number of battery modules in the battery pack.
For convenience of explanation, 5 battery modules are included in the battery pack shown in fig. 7. It should be noted that the battery pack may include two or more battery modules, and the battery modules are still arranged in a corresponding order.
It should be noted that in the embodiment of fig. 7, the AB-type battery module is taken as the first battery module in the battery pack, and then the corresponding battery modules are arranged behind the AB-type battery module in a predetermined order. And in some embodiments, the BA-type battery module may be the first battery module in the battery pack. After the first battery module is determined, the different types of battery modules are still arranged in sequence according to the above sequence.
Fig. 8 is a schematic structural view of a battery pack according to still another embodiment of the present disclosure.
Fig. 8 is different from fig. 8 in that, in the embodiment shown in fig. 8, the leading battery module in the battery pack is a BA-type battery module. For convenience of explanation, 5 battery modules are shown in fig. 8.
In the case where the first battery module 81 is of the BA type, the AB type battery modules 82 are disposed adjacent to the battery modules 81 in a predetermined direction (for example, the battery modules 82 are disposed on the right side of the battery modules 81) in a predetermined order, and the positive electrodes of the battery modules 81 and the negative electrodes of the battery modules 82 are electrically connected by the electrical connection members 801. Next, the BA-type battery module 83 is disposed adjacent to the battery module 82 in a predetermined direction (for example, the battery module 83 is disposed on the right side of the battery module 82), and the positive electrode of the battery module 82 and the negative electrode of the battery module 83 are electrically connected by the electrical connector 802. The AB-type battery module 84 is disposed adjacent to the battery module 83 in a predetermined direction (for example, the battery module 84 is disposed on the right side of the battery module 83), and the positive electrode of the battery module 83 is electrically connected to the negative electrode of the battery module 84 by the electrical connection member 803. The BA-type battery module 85 is disposed adjacent to the battery module 84 in a predetermined direction (for example, the battery module 85 is disposed at the right side of the battery module 84), and the positive electrode of the battery module 84 is electrically connected to the negative electrode of the battery module 85 by the electrical connector 804.
Fig. 9 is a schematic flow chart illustrating a method of manufacturing a battery pack according to an embodiment of the present disclosure.
At step 901, at least two battery modules are provided, wherein the battery module types of two adjacent battery modules are different from each other, a positive terminal and a negative terminal of each battery module are respectively provided with a symbol associated with the corresponding battery module type, and the at least two battery modules are arranged in a predetermined order.
In step 902, two terminals having the same sign and opposite polarity on two adjacent battery modules are electrically connected.
In some embodiments, among the at least two battery modules, a positive terminal not electrically connected to the negative terminal of the adjacent battery module is used as the positive terminal of the battery pack, and a negative terminal not electrically connected to the positive terminal of the adjacent battery module is used as the negative terminal of the battery pack.
In some embodiments, as shown in fig. 1-6, the positive and negative terminals of each battery module are located on either side of each battery module.
As shown in fig. 1 to 6, in two adjacent battery modules, the positive terminal of one battery module is located on the same side as the negative terminal of the other battery module, and the negative terminal of one battery module is located on the same side as the positive terminal of the other battery module.
In some embodiments, the battery module types include a first battery module type, a second battery module type, a third battery module type, and a fourth battery module type.
In the case where the first battery module is of the first battery module type, a first symbol a is provided on the positive terminal of the first battery module, and a second symbol B, i.e., an AB type, is provided on the negative terminal of the first battery module. In the case where the second battery module is of the second battery module type, a second symbol B, namely BB type, is provided on both the positive terminal and the negative terminal of the second battery module. In the case where the third battery module is of a third battery module type, a second symbol B is provided on a positive terminal of the third battery module, and a first symbol a, i.e., BA type, is provided on a negative terminal of the third battery module. In the case where the fourth battery module is of a fourth battery module type, the first symbol a, i.e., AA type, is provided on both the positive electrode terminal and the negative electrode terminal of the fourth battery module.
In some embodiments, as shown in fig. 1-6, if a first battery module is included in the battery pack, a second battery module is disposed adjacent to the first battery module. And if the battery pack comprises the second battery module, arranging the third battery module and the second battery module adjacently. And if the battery pack comprises the third battery module, arranging the fourth battery module and the third battery module adjacently. And if the battery pack comprises a fourth battery module, arranging the first battery module and the fourth battery module adjacently. Namely, the setting is performed cyclically in the order of [ AB type, BB type, BA type, AA type ].
In some embodiments, as shown in fig. 1-6, the positive and negative terminals of each battery module are located on the same side of each battery module, respectively.
In some embodiments, the battery module types include a fifth battery module type and a sixth battery module type.
In the case where the fifth battery module is of a fifth battery module type, a first symbol a is provided on a negative terminal of the fifth battery module, and a second symbol B, i.e., BA type, is provided on a positive terminal of the fifth battery module. In the case where the sixth battery module is of a sixth battery module type, a second symbol B is provided on a negative terminal of the sixth battery module, and a first symbol a, that is, an AB type, is provided on a positive terminal of the sixth battery module.
As shown in fig. 7 to 8, the sixth battery module is disposed adjacent to the fifth battery module. Wherein, in two adjacent battery modules, the positive terminal of one battery module is adjacent to the negative terminal of the other battery module. Namely, the setting is performed cyclically in the order of [ AB type, BA type ].
The terminals of the battery modules of different types are correspondingly identified, the battery modules of different types are arranged according to a preset sequence, and the two terminals with the same symbols and opposite polarities in the two adjacent battery modules are electrically connected. Therefore, the short circuit condition in the series connection process of the battery modules in the battery pack can be effectively avoided, and the connection safety and the assembly efficiency of the battery modules are enhanced.
The description of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the disclosure in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the disclosure and the practical application, and to enable others of ordinary skill in the art to understand the disclosure for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (15)
1. A battery pack, comprising:
the battery module type of at least two battery modules is different from each other, symbols associated with the corresponding battery module type are respectively arranged on the positive terminal and the negative terminal of each battery module, and the at least two battery modules are arranged according to a preset sequence;
and the electric connecting piece is arranged between the two adjacent battery modules and is used for electrically connecting the two terminals with the same sign and opposite polarities on the two adjacent battery modules.
2. The battery pack according to claim 1, wherein:
in the at least two battery modules, a positive terminal not electrically connected to a negative terminal of an adjacent battery module is used as a positive terminal of the battery pack, and a negative terminal not electrically connected to a positive terminal of an adjacent battery module is used as a negative terminal of the battery pack.
3. The battery pack according to claim 1 or 2, wherein:
the positive terminal and the negative terminal of each battery module are respectively positioned on two sides of each battery module.
4. The battery pack according to claim 3, wherein:
the battery module types include a first battery module type, a second battery module type, a third battery module type, and a fourth battery module type;
under the condition that a first battery module belongs to a first battery module type, a first symbol is arranged on a positive terminal of the first battery module, and a second symbol is arranged on a negative terminal of the first battery module;
under the condition that the second battery module belongs to the second battery module type, a second symbol is arranged on the positive terminal and the negative terminal of the second battery module;
under the condition that a third battery module belongs to a third battery module type, a second symbol is arranged on a positive terminal of the third battery module, and a first symbol is arranged on a negative terminal of the third battery module;
in the case where the fourth battery module is of a fourth battery module type, a first symbol is provided on both the positive terminal and the negative terminal of the fourth battery module.
5. The battery pack according to claim 4, wherein the predetermined order includes at least one of the following setting conditions:
if the battery pack comprises a first battery module, arranging the second battery module and the first battery module adjacently in a preset direction;
if the battery pack comprises a second battery module, arranging a third battery module adjacent to the second battery module in the preset direction;
if the battery pack comprises a third battery module, arranging the fourth battery module and the third battery module adjacently in the preset direction;
and if the battery pack comprises a fourth battery module, arranging the first battery module and the fourth battery module adjacently in the preset direction.
6. The battery pack according to claim 5,
in two adjacent battery modules, the positive terminal of one battery module and the negative terminal of the other battery module are located on the same side, and the negative terminal of the one battery module and the positive terminal of the other battery module are located on the same side.
7. The battery pack according to claim 1 or 2, wherein:
the positive terminal and the negative terminal of each battery module are respectively positioned on the same side of each battery module.
8. The battery pack according to claim 7, wherein:
the battery module types include a fifth battery module type and a sixth battery module type;
under the condition that a fifth battery module belongs to a fifth battery module type, a first symbol is arranged on a negative terminal of the fifth battery module, and a second symbol is arranged on a positive terminal of the fifth battery module;
and under the condition that the sixth battery module belongs to the type of the sixth battery module, a second symbol is arranged on a negative terminal of the sixth battery module, and a first symbol is arranged on a positive terminal of the sixth battery module.
9. The battery pack of claim 8, wherein the predetermined sequence comprises:
disposing the sixth battery module adjacent to the fifth battery module.
10. The battery pack according to claim 9,
in the adjacent two battery modules, the positive terminal of one battery module is adjacent to the negative terminal of the other battery module.
11. A method of manufacturing a battery pack, comprising:
providing at least two battery modules, wherein the battery module types of two adjacent battery modules are different from each other, symbols associated with the corresponding battery module types are respectively arranged on a positive terminal and a negative terminal of each battery module, and the at least two battery modules are arranged in a preset sequence;
two terminals with the same sign and opposite polarity on two adjacent battery modules are electrically connected.
12. The method of claim 11, wherein:
the positive terminal and the negative terminal of each battery module are respectively positioned on two sides of each battery module;
the battery module types include a first battery module type, a second battery module type, a third battery module type, and a fourth battery module type;
under the condition that a first battery module belongs to a first battery module type, a first symbol is arranged on a positive terminal of the first battery module, and a second symbol is arranged on a negative terminal of the first battery module;
under the condition that the second battery module belongs to the second battery module type, a second symbol is arranged on the positive terminal and the negative terminal of the second battery module;
under the condition that a third battery module belongs to a third battery module type, a second symbol is arranged on a positive terminal of the third battery module, and a first symbol is arranged on a negative terminal of the third battery module;
in the case where the fourth battery module is of a fourth battery module type, a first symbol is provided on both the positive terminal and the negative terminal of the fourth battery module.
13. The method according to claim 12, wherein the predetermined order comprises at least one of the following setting conditions:
if the battery pack comprises a first battery module, arranging the second battery module and the first battery module adjacently in a preset direction;
if the battery pack comprises a second battery module, arranging a third battery module adjacent to the second battery module in the preset direction;
if the battery pack comprises a third battery module, arranging the fourth battery module and the third battery module adjacently in the preset direction;
if the battery pack comprises a fourth battery module, arranging the first battery module and the fourth battery module adjacently in the preset direction;
in two adjacent battery modules, the positive terminal of one battery module and the negative terminal of the other battery module are located on the same side, and the negative terminal of the one battery module and the positive terminal of the other battery module are located on the same side.
14. The method of claim 11, wherein:
the positive terminal and the negative terminal of each battery module are respectively positioned on the same side of each battery module;
the battery module types include a fifth battery module type and a sixth battery module type;
under the condition that a fifth battery module belongs to a fifth battery module type, a first symbol is arranged on a negative terminal of the fifth battery module, and a second symbol is arranged on a positive terminal of the fifth battery module;
and under the condition that the sixth battery module belongs to the type of the sixth battery module, a second symbol is arranged on a negative terminal of the sixth battery module, and a first symbol is arranged on a positive terminal of the sixth battery module.
15. The method of claim 14, wherein the predetermined order comprises:
disposing the sixth battery module adjacent to the fifth battery module;
in the adjacent two battery modules, the positive terminal of one battery module is adjacent to the negative terminal of the other battery module.
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| CN201910898831.8A CN110600666B (en) | 2019-09-23 | 2019-09-23 | Battery pack and method for manufacturing same |
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| CN110600666B (en) | 2023-08-18 |
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