CN117712606A - Battery module and battery pack - Google Patents
Battery module and battery pack Download PDFInfo
- Publication number
- CN117712606A CN117712606A CN202311849938.6A CN202311849938A CN117712606A CN 117712606 A CN117712606 A CN 117712606A CN 202311849938 A CN202311849938 A CN 202311849938A CN 117712606 A CN117712606 A CN 117712606A
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- Prior art keywords
- battery module
- battery
- main body
- battery modules
- stacked
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- 230000000903 blocking effect Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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
- H01M50/269—Mechanical means for varying the arrangement of batteries or cells for different uses, e.g. for changing the number of batteries or for switching between series and parallel wiring
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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
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
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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
- H01M50/298—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery packs
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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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a battery module and a battery pack, wherein the battery module comprises a main body and a control circuit, wherein the main body is internally provided with a battery module and is provided with opposite two ends, and the two ends of the main body are respectively provided with a first power connection point and a second power connection point; the control circuit is arranged in the main body and is provided with a parallel state for controlling two first connection points to be communicated with one electrode of the battery module and two second connection points to be communicated with the other electrode of the battery module so as to enable a plurality of battery modules to be stacked in the same direction and connected in parallel; and controlling the serial state that the first electric connection point at one end of the main body is communicated with one electrode of the battery module, and the second electric connection point at the other end of the main body is communicated with the other electrode of the battery module, so that a plurality of battery modules are stacked in different directions and are connected in series. The invention aims to provide a battery module capable of freely switching a series-parallel mode so as to facilitate switching between parallel battery packs and series battery packs.
Description
Technical Field
The invention relates to the technical field of assembled batteries, in particular to a battery module and a battery pack.
Background
The existing household energy storage system divides the inverter and the battery into a plurality of modules, and then the modules are combined for use, so that the disassembly and the transportation are convenient, and the connection mode of the current battery module stacking can be preset only before stacking, and the battery modules are connected in series or in parallel. If the connection mode is to be switched in parallel or in series, the connection mode of the wire harness on the battery module needs to be reset, which is not beneficial to the standardized manufacturing of the battery module.
Disclosure of Invention
The invention mainly aims to provide a battery module and a battery pack, and aims to provide a battery module capable of freely switching a series-parallel mode so as to facilitate switching between a parallel battery pack and a series battery pack.
In order to achieve the above object, the present invention provides a battery module, wherein the battery module includes a main body and a control circuit, the main body is internally provided with a battery module, and the main body has opposite ends, and both ends of the main body are provided with a first electrical connection point and a second electrical connection point; the control circuit is arranged in the main body and is provided with a parallel state for controlling two first connection points to be communicated with one electrode of the battery module and two second connection points to be communicated with the other electrode of the battery module so as to enable a plurality of battery modules to be stacked in the same direction and connected in parallel; and controlling the serial state that the first electric connection point at one end of the main body is communicated with one electrode of the battery module, and the second electric connection point at the other end of the main body is communicated with the other electrode of the battery module, so that a plurality of battery modules are stacked in different directions and are connected in series.
Optionally, the control circuit includes:
the first control circuit comprises a first connection main line connected with the two first connection points, a first switch is arranged on the first connection main line, and a first connection branch line communicated with an electrode of the battery module is arranged at a position of the first switch, which is close to one end of the main body; the method comprises the steps of,
the second control circuit comprises a second connecting main line connected with the two second connecting points, a second switch is arranged on the second connecting main line, and a second connecting branch line communicated with the other electrode of the battery module is arranged at a position, close to the other end of the main body, of the second switch.
Optionally, a control device is arranged on the control circuit, and the control device is used for synchronously controlling the first switch and the second switch to be opened and closed.
Optionally, the control device includes a knob disposed outside the body.
Optionally, two third connection points located between the first connection point and the second connection point are further disposed at two ends of the main body, the control circuit includes a third connection main line connected with the two third connection points, and when the battery modules are stacked in the same direction or in different directions, two corresponding third connection points on two adjacent battery modules are connected.
Optionally, the control circuit is disposed in the middle of the main body, and the first electrical connection point and the second electrical connection point are disposed on two sides of the middle of the main body, so as to divide the battery module into a first module and a second module connected by connecting wires, so that when the battery modules are stacked in the same direction or different directions, the middle of the main body is disposed oppositely.
Optionally, foolproof structures are further arranged at two ends of the main body to limit the anisotropic stacking of the plurality of battery modules when the battery modules are in the parallel state; and limiting the co-directional stacking of a plurality of battery modules when the battery modules are in the serial state.
Optionally, the fool-proof structure includes locating respectively bolt and spliced eye at main part both ends and set up in the movably structure that blocks that sets up of spliced eye bottom, just the spliced eye is in the both sides at main part middle part divide and are equipped with two, and adjacent two when battery module syntropy stacks or different direction stacks, one bolt on the battery module corresponds respectively another two on the battery module the spliced eye, block that the structure is movable stretches into one the bottom of spliced eye is in order to block the bolt inserts the spliced eye, restrict adjacent battery module syntropy stacks or different direction stacks.
Optionally, the first electrical connection point and the second electrical connection point located at one end of the main body are provided as plugs, the first electrical connection point and the second electrical connection point located at the other end of the main body are provided as sockets, and the plugs on one battery module are inserted into the sockets on another battery module to be electrically connected.
The invention also provides a battery pack, wherein the battery pack comprises a plurality of detachably connected battery modules, each battery module comprises a main body and a control circuit, each main body is internally provided with a battery module, the main body is provided with opposite two ends, and the two ends of the main body are provided with a first power connection point and a second power connection point; the control circuit is arranged in the main body and is provided with a parallel state for controlling two first connection points to be communicated with one electrode of the battery module and two second connection points to be communicated with the other electrode of the battery module so as to enable a plurality of battery modules to be stacked in the same direction and connected in parallel; and controlling a series state that the first electric connection point at one end of the main body is communicated with one electrode of the battery module, and the second electric connection point at the other end of the main body is communicated with the other electrode of the battery module, so that a plurality of battery modules are stacked in different directions and connected in series; when the battery modules are in the parallel state, the two first connection points between two adjacent battery modules are communicated with the two second connection points to form a parallel battery pack stacked in the same direction; when the battery modules are in the serial state, the first electric connection points between two adjacent battery modules are communicated with the second electric connection points to form a serial battery pack stacked in different directions.
In the technical scheme of the invention, the battery module comprises the main body and the control circuit, the two ends of the main body are respectively provided with the first power connection point and the second power connection point, the first power connection point and the second power connection point are used for connecting when external equipment is powered on, and the second power connection point is used for connecting a plurality of battery modules when the battery modules are stacked. Specifically, the control circuit is arranged in the main body, so that the internal connection circuit of the first electric connection point and the second electric connection point on the main body is adjusted and controlled to adjust the parallel connection mode and the series connection mode. When the battery modules are in the parallel mode, the two first electric connection points on the main body are communicated and connected with one electrode of the battery module, the two second electric connection points are communicated and connected with the other electrode of the battery module, and a plurality of battery modules in the parallel mode are stacked in the same direction at the moment, namely the first electric connection point on one battery module is communicated with the first electric connection point on the other battery module, and meanwhile the second electric connection points between the two battery modules are communicated, so that the positive electrodes and the negative electrodes of the battery modules in the two battery modules are all in a parallel connection mode, and the parallel connection requirement of a plurality of battery modules in a battery pack is met; when the battery modules are in the series mode, the first electrical connection point at one end of the main body is connected with one electrode of the battery module, the second electrical connection point at the other end of the main body is connected with the other electrode of the battery module, and at the moment, a plurality of battery modules in the series mode are stacked in different directions, namely, the first electrical connection point on one battery module is communicated with the second electrical connection point on the other battery module, so that one electrode of the battery module on one battery module is communicated with the other electrode of the battery module on the other battery module, and a plurality of battery modules are stacked to form a serial connection mode which is sequentially connected, thereby meeting the serial connection requirement of a plurality of battery modules in a battery pack. In summary, the connection mode of the battery modules can be switched by adjusting the circuit in the main body according to the control circuit, and the serial or parallel connection of a plurality of battery modules in the battery pack is realized by adjusting the stacking mode of the battery modules to adjust the adapting circuit, so that the operation is simple and convenient, and the use requirement is met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic plan view of an embodiment of a battery module provided by the present invention;
fig. 2 is a schematic plan view of a parallel battery pack according to the present invention;
fig. 3 is a schematic plan view of a tandem battery pack according to the present invention.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 1000 | Battery pack | 22 | First switch |
| 100 | Battery module | 23 | First connection branch |
| 1 | Main body | 24 | Second connecting main line |
| 11 | Battery module | 25 | Second switch |
| 111 | First module group | 26 | Second connection branch |
| 112 | Second module | 27 | Third connecting main line |
| 113 | Connecting wire | 28 | Third switch |
| 12 | First contact point | 29 | Knob |
| 13 | Second contact point | 3 | Fool-proof structure |
| 14 | Third contact point | 31 | Bolt |
| 2 | Control circuit | 32 | Plug hole |
| 21 | First connecting main line | 33 | Barrier structure |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The existing household energy storage system divides the inverter and the battery into a plurality of modules, and then the modules are combined for use, so that the disassembly and the transportation are convenient, and the connection mode of the current battery module stacking can be preset only before stacking, and the battery modules are connected in series or in parallel. If the connection mode is to be switched in parallel or in series, the connection mode of the wire harness on the battery module needs to be reset, which is not beneficial to the standardized manufacturing of the battery module.
In view of this, the present invention provides a battery module, and fig. 1 to 3 are embodiments of the battery module provided by the present invention, and the battery module will be described with reference to the specific drawings.
Referring to fig. 1 to 3, the battery module 100 includes a main body 1 and a control circuit 2, wherein the main body 1 is internally provided with a battery module 11, and the main body 1 has opposite ends, and both ends thereof are provided with a first electrical connection point 12 and a second electrical connection point 13; the control circuit 2 is disposed in the main body 1, and has a parallel state for controlling two first connection points 12 to communicate with one electrode of the battery module 11 and two second connection points 13 to communicate with another electrode of the battery module 11, so as to enable a plurality of battery modules 11 to be stacked in the same direction and connected in parallel; and controlling the series state that the first connection point 12 at one end of the main body 1 is communicated with one electrode of the battery module 11, and the second connection point 13 at the other end of the main body 1 is communicated with the other electrode of the battery module 11, so that a plurality of battery modules 11 are stacked in different directions and connected in series.
In the technical solution of the present invention, the battery module 100 includes the main body 1 and the control circuit 2, both ends of the main body 1 are provided with the first electrical connection point 12 and the second electrical connection point 13, which are used for connection when an external device is powered on, and are used for interconnection when a plurality of battery modules 100 are stacked, and what is needed to be improved in the present application is a connection mode, i.e. parallel connection or series connection, when a plurality of battery modules 100 are interconnected when stacked, so as to meet the requirements of different battery packs 1000. Specifically, the control circuit 2 is disposed in the main body 1 in the present application, so as to adjust the parallel and serial modes of the internal connection circuits of the first and second connection points 12 and 13 on the main body 1 by adjusting and controlling the internal connection circuits. When the battery modules 100 are in the parallel mode, the two first electrical connection points 12 on the main body 1 are communicated and connected with one electrode of the battery module 11, the two second electrical connection points 13 are communicated and connected with the other electrode of the battery module 11, and at this time, a plurality of battery modules 100 in the parallel mode are stacked in the same direction, i.e. the first electrical connection point 12 on one battery module 100 is communicated with the first electrical connection point 12 on the other battery module 100, and meanwhile, the second electrical connection points 13 between the two battery modules are communicated, so that the positive electrode and the negative electrode of the battery module 11 in the two battery modules 100 are all in parallel connection, and the parallel connection requirement of a plurality of battery modules 100 in the battery pack 1000 is met. When the battery modules 100 are in the series mode, the first electrical connection point 12 at one end of the main body 1 is connected with one electrode of the battery module 11, the second electrical connection point 13 at the other end of the main body 1 is connected with the other electrode of the battery module 11, and at this time, a plurality of battery modules 100 in the series mode are stacked in an opposite direction, that is, the first electrical connection point 12 on one battery module 100 is communicated with the second electrical connection point 13 on the other battery module 100, so that one electrode of the battery module 11 on one battery module 100 is communicated with the other electrode of the battery module 11 on the other battery module 100, and a plurality of battery modules 100 are stacked to form a serial connection form, thereby meeting the serial connection requirement of a plurality of battery modules 100 in the battery pack 1000. In summary, the connection mode of the battery modules 100 can be switched by adjusting the circuit in the main body 1 according to the control circuit 2, and the serial or parallel connection of the plurality of battery modules 100 in the battery pack 1000 can be switched by adjusting the stacking mode of the battery modules 100 to adjust the adapting circuit, so that the operation is simple and convenient, and the use requirement is met.
Specifically, the control circuit 2 includes a first control circuit 2 and a second control circuit 2, where the first control circuit 2 includes a first connection main line 21 connected to two first connection points 12, a first switch 22 is disposed on the first connection main line 21, and a first connection branch line 23 that is connected to an electrode of the battery module 11 is disposed at a position of the first switch 22 near one end of the main body 1; the second control circuit 2 includes a second connection main line 24 connected to the two second connection points 13, a second switch 25 is disposed on the second connection main line 24, and a second connection branch line 26 connected to another electrode of the battery module 11 is disposed at a position of the second switch 25 near the other end of the main body 1. The embodiments of the control circuit 2 may be various, including not limited to two sets of circuits, and the series state and the parallel state are respectively implemented, so that when the switching is needed, the whole switching is directly performed, but obviously, the setting of the circuit is complicated and the cost is high. In this embodiment, the control circuit 2 is configured as the first control circuit 2 and the second control circuit 2, and the first switch 22 on the first control circuit 2 and the second switch 25 on the second control circuit 2 are used to regulate the first control circuit 2 and the second control circuit 2, so that the overall circuit is simple, and the switching is convenient and the cost is low. Specifically, when the battery modules 100 are in the parallel state, the first switch 22 on the first control line 2 is closed so that two first connection points 12 are connected through the first connection main line 21, and the first connection branch line 23 is led out of the first connection main line 21 to connect one electrode of the battery module 11, when a plurality of battery modules 100 in the parallel state are stacked in the same direction, the first connection main lines 21 on a plurality of battery modules 100 are connected, and at this time, the first connection branch line 23 on each battery module 100 is connected in parallel; correspondingly, the second switch 25 on the second control line 2 is also in a closed state, so that the two second connection points 13 are communicated through the second connection main line 24, and the second connection branch line 26 is led out from the second connection main line 24 to connect with another electrode of the battery module 11, when the plurality of battery modules 100 in the parallel state are stacked in the same direction, the second connection main lines 24 on the plurality of battery modules 100 are communicated, and at this time, the second connection branch line 26 on each battery module 100 is connected in parallel. In this way, in combination with the parallel connection state of the first connection branch 23 and the second connection branch 26, a plurality of battery modules 100 are connected in parallel, so as to meet the parallel connection requirement of a plurality of battery modules 100 in the battery pack 1000. When the battery modules 100 are in the series state, the first switch 22 on the first control line 2 is turned off so that the first connection point 12 at one end of the main body 1 communicates with one electrode of the battery module 11 through the first connection branch line 23; at the same time, the second switch 25 on the second control line 2 is turned off, and the second connection point 13 at the other end of the main body 1 is connected to the other electrode of the battery module 11 through the second connection branch line 26. In this way, a serial connection line from the first electrical connection point 12 at one end of the main body 1 to the battery module 11 to the second electrical connection point 13 at the other end of the main body 1 is realized on a single battery module 100, and when a plurality of battery modules 100 are stacked in different directions, the first electrical connection point 12 on one battery module 100 is communicated with the second electrical connection point 13 on another battery module 100, so that a serial connection line from the first electrical connection point 12 at one end of one battery module 100 to the second electrical connection point 13 at the other end of the battery module 11 to the other end of the battery module 11 and then to the first electrical connection point 12 at one end of the other battery module 100 to the second electrical connection point 13 at the other end of the battery module 11 is realized, so that the serial connection of the battery modules 11 on two battery modules 100 can be performed, and the serial connection of a plurality of battery modules 100 can be further realized, thereby meeting the requirements of the battery modules 100 in the battery pack 1000.
Further, a control device is disposed on the control circuit 2, and the control device is used for synchronously controlling the first switch 22 and the second switch 25 to be opened and closed. The control circuit 2 mainly needs to control the opening and closing of the first switch 22 and the second switch 25, and it can be understood that setting the first switch 22 and the second switch 25 to be independently controlled can also realize the required functions, but multiple operation steps are required, and there are missing switches, forgetting to switch, which affects the normal stacking of the battery modules 100, and even has the problem of electrical safety. In this embodiment, the control device is disposed on the control circuit 2, and the control device and the first switch 22 and the second switch 25 may be mechanical devices, and the first switch 22 and the second switch 25 may be opened and closed simultaneously by mechanical activity, or may be electric control devices, and the first switch 22 and the second switch 25 may be opened and closed simultaneously by a telecommunication signal, so that the present embodiment is not limited herein, and the use requirement may be satisfied, and the first switch 22 and the second switch 25 may be synchronously controlled by the control device, so that the operation steps are reduced, and the situation of a falling switch does not exist, so that the present embodiment has strong operational convenience and reliability, and is more practical.
Specifically, the control means comprise a knob 29 arranged outside the body 1. In this embodiment, the control device mainly adopts a telecommunication connection mode to control the first switch 22 and the second switch 25, so that the specific operation mode of the control device is not limited, and two signals can be given. Based on this, in this embodiment, a specific operation manner of the control device is further provided, that is, the shift is switched by rotating the knob 29 disposed outside the main body 1, so that the parallel state and the series state of the battery module 100 are switched, which is convenient to use and clear to operate.
In addition, two third electrical points 14 located between the first electrical point 12 and the second electrical point 13 are further disposed at two ends of the main body 1, and the control circuit 2 includes a third connection main line 27 that communicates with the two third electrical points 14, where when the plurality of battery modules 11 are stacked in the same direction or stacked in different directions, two corresponding third electrical points 14 on two adjacent battery modules 11 are communicated. It should be understood that, based on the above description, when a plurality of the battery modules 100 are stacked in parallel, both the first electrical connection points 12 and the second electrical connection points 13 at two ends of the battery pack 1000 are in a communication state, so the manner of taking the electrical connection is not limited, that is, the first electrical connection points 12 and the second electrical connection points 13 are respectively connected at the same end of the battery pack 1000, or the first electrical connection points 12 are connected at one end of the battery pack 1000, and the second electrical connection points 13 are connected at the other end of the battery pack 1000, which is mainly the structure and the use requirement of the actual battery pack 1000. However, when a plurality of battery modules 100 are stacked in series, only the first electrical connection point 12 at one end of the battery pack 1000 and the second electrical connection point 13 at the other end of the battery pack can be connected to power, which cannot meet the power requirement at the same side, so in this embodiment, only an additional connection wire is connected between the first electrical connection point 12 and the second electrical connection point 13, and the third connection main line 27 is further connected between the two third electrical connection points 14 at the two ends of the main body 1, so when a plurality of battery modules 100 are stacked in series, the third electrical connection points 14 on the plurality of battery modules 100 are sequentially connected, so that two third electrical connection points 14 at the two ends of the battery pack 1000 are connected, and at this time, only an additional connection wire is required between the third electrical connection point 14 and the first electrical connection point 12 or the second electrical connection point 13 that are in operation, and the first electrical connection point 12 at one end of the battery pack 1000 and the second electrical connection point 13 are in the same state or different from each other as the second electrical connection point 13. On the basis of the above, it can be understood that the third connection point 14 and the third connection main line 27 are only required to be used when the plurality of battery modules 100 are stacked in different directions and connected in series, so in this embodiment, based on the above control of the first switch 22 and the second switch 25 by the control device, the third connection main line 27 is further provided with the third switch 28, so that when the control device controls the first switch 22 and the second switch 25 to be disconnected, the third switch 28 is controlled to be connected, and otherwise, when the control device controls the first switch 22 and the second switch 25 to be connected, the third switch 28 is controlled to be disconnected, so as to meet the use requirement.
In addition, the control circuit 2 is disposed in the middle of the main body 1, and the first electrical connection point 12 and the second electrical connection point 13 are disposed on two sides of the middle of the main body 1, so as to divide the battery module 11 into a first module 111 and a second module 112 connected by a connecting wire 113, so that when the battery modules 100 are stacked in the same direction or stacked in different directions, the middle of the main body 1 is disposed oppositely. In order to ensure the dimensional suitability of the plurality of battery modules 100 when stacked in the same direction and stacked in different directions, in this embodiment, the control circuit 2, the first electrical connection point 12, and the second electrical connection point 13 are disposed in the middle of the main body 1, and the first electrical connection point 12 and the second electrical connection point 13 are symmetrical with respect to the center line of the main body 1, so that the center lines of the plurality of main bodies 1 are located on the same center line when stacked in the same direction and stacked in different directions, thereby ensuring the symmetry. On this basis, since the third contact 14 can be paired when stacked in the same direction and stacked in different directions, the third contact 14 is disposed on the center line of the main body 1 in this embodiment. In addition, on the basis of the above, the battery module 11 needs to be disposed as the first module 111 and the second module 112 located at two ends of the main body 1, so that the first module 111 and the second module 112 are identical to the integral battery module 11 in the use process, and the connecting line 113 is disposed between the first module 111 and the second module 112 in this embodiment, so that the first module 111 and the second module 112 are connected to form an integral, thereby meeting the use requirement.
In addition, the body 1 is further provided at both ends with fool-proof structures 3 to limit the anisotropic stacking of the plurality of battery modules 11 when the battery modules 100 are in the parallel state; when the battery modules 100 are in the series state, the co-directional stacking of the plurality of battery modules 11 is restricted. When the battery modules 100 are connected in series and in parallel, different stacking modes, i.e., co-directional stacking and different-directional stacking, are adopted, and the two stacking modes cannot be compatible, when the battery modules are connected in parallel, if the stacking mode is selected in error, the battery modules may cause electric safety problems, and when the battery modules are connected in series, if the stacking mode is selected in error, two adjacent battery modules 100 are not communicated, and cannot be normally used. Therefore, in this embodiment, in order to avoid the problem of abnormal stacking caused by manual judgment, the foolproof structure 3 is further disposed on the main body 1, so that when two connection methods are adopted, the stacking methods of two adjacent battery modules 100 are controlled, and when an error stacking method is adopted, the installation cannot be performed, so as to assist the user in stacking the battery modules 100, and avoid the problem of abnormal stacking direction.
Specifically, the fool-proof structure 3 includes a plug 31 and a plug hole 32 respectively disposed at two ends of the main body 1, and a blocking structure 33 movably disposed at the bottom of the plug hole 32, where two sides of the middle of the main body 1 are respectively disposed at the plug hole 32, and when two adjacent battery modules 11 are stacked in the same direction or stacked in different directions, the plug 31 on one battery module 11 corresponds to two plug holes 32 on the other battery module 11, and the blocking structure 33 can be movably inserted into the bottom of one plug hole 32 to block the plug 31 from being inserted into the plug hole 32, thereby limiting the adjacent battery modules 11 from being stacked in the same direction or stacked in different directions. The fool-proof structure 3 may be arranged in a plurality of ways, so that the fool-proof function of the fool-proof structure 3 may be achieved, which is not limited herein, in this embodiment, the fool-proof structure 3 is arranged as the plug 31, the plug hole 32 and the blocking structure 33, the depth of the plug hole 32 is enough for the plug 31 to be completely inserted, when the blocking structure 33 extends into the plug hole 32, the plug 31 cannot be completely inserted into the plug hole 32, according to this principle, the two plug holes 32 are symmetrically arranged with respect to the center line of the main body 1, the plug 31 is arranged corresponding to one plug hole 32, and by controlling one of the two blocking structures 33 in the two plug holes 32 to extend into the corresponding plug hole 32, the plug 31 cannot be completely inserted into the plug hole 32 in a stacking way of two battery modules 100 in one direction, and the plug 31 cannot be completely inserted into the plug hole 32 in a stacking way of the other direction, so that the two adjacent battery modules 100 can be completely stacked, and the fool-proof structure 100 can be fully inserted into the plug hole 32. On this basis, the specific setting of the fool-proof structure 3 is actually related to the parallel state and the serial state of the battery module 100, and based on the condition that the first switch 22, the second switch 25 and the second switch 25 are controlled to be opened and closed by the control device, and the control of the two blocking structures 33 is related to the control device under the condition that the use requirement is met, so that when the serial state and the parallel state of the battery module 100 are controlled and changed by the control device, the fool-proof state of the fool-proof structure 3 is synchronously changed without manual adjustment one by one, and after the connection, missing adjustment or wrong adjustment can be avoided, and the use reliability is improved.
Further, the first and second power connection points 12 and 13 at one end of the main body 1 are provided as plugs, and the first and second power connection points 12 and 13 at the other end of the main body 1 are provided as sockets, and the plugs on one battery module 100 are inserted into the sockets on the other battery module 100 to be electrically connected. The connection modes of the first electrical connection point 12, the second electrical connection point 13, and the third electrical connection point 14 proposed later can be set to be various, including connection by using an additional electrical connection wire bundle, contact connection by a contact patch, etc., which are not limited herein, and the required electrical connection function can be achieved.
The present invention also proposes a battery pack 1000, the battery pack 1000 including a plurality of battery modules 100, and the specific structure of the battery modules 100 is referred to the above-described embodiments. Because the battery pack 1000 adopts all the technical solutions of all the embodiments, at least the beneficial effects of the technical solutions of the embodiments are provided, and will not be described in detail herein; when the battery modules 100 are in the parallel state, the two first electrical connection points 12 between two adjacent battery modules 100 are communicated with the two second electrical connection points 13 to form a parallel battery pack 1000 stacked in the same direction; when the battery modules 100 are in the series state, the first and second connection points 12 and 13 between two adjacent battery modules 100 are connected to form a series battery 1000 stacked in different directions.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (10)
1. A battery module, comprising:
the main body is internally provided with a battery module, and is provided with two opposite ends, and the two ends of the main body are provided with a first electric connection point and a second electric connection point; the method comprises the steps of,
the control circuit is arranged in the main body and is provided with a parallel state for controlling the two first connection points to be communicated with one electrode of the battery module and the two second connection points to be communicated with the other electrode of the battery module so as to enable the battery modules to be stacked in the same direction and connected in parallel; and controlling the serial state that the first electric connection point at one end of the main body is communicated with one electrode of the battery module, and the second electric connection point at the other end of the main body is communicated with the other electrode of the battery module, so that a plurality of battery modules are stacked in different directions and are connected in series.
2. The battery module of claim 1, wherein the control circuit comprises:
the first control circuit comprises a first connection main line connected with the two first connection points, a first switch is arranged on the first connection main line, and a first connection branch line communicated with an electrode of the battery module is arranged at a position of the first switch, which is close to one end of the main body; the method comprises the steps of,
the second control circuit comprises a second connecting main line connected with the two second connecting points, a second switch is arranged on the second connecting main line, and a second connecting branch line communicated with the other electrode of the battery module is arranged at a position, close to the other end of the main body, of the second switch.
3. The battery module of claim 2, wherein a control device is provided on the control line, the control device being configured to synchronously control opening and closing of the first switch and the second switch.
4. The battery module of claim 3, wherein the control device comprises a knob disposed outside the body.
5. The battery module according to claim 2, wherein two third connection points located between the first connection point and the second connection point are further provided at both ends of the main body, respectively, and the control circuit includes a third connection main line that communicates the two third connection points, and when a plurality of battery modules are stacked in the same direction or in different directions, the corresponding two third connection points on the adjacent two battery modules are communicated.
6. The battery module according to any one of claims 1 to 5, wherein the control circuit is disposed in the middle of the main body, and the first and second connection points are disposed on both sides of the middle of the main body, respectively, so as to divide the battery module into a first module and a second module connected by a connection line, such that the middle of the main bodies are disposed opposite to each other when the plurality of battery modules are stacked in the same direction or stacked in different directions.
7. The battery module according to claim 1, wherein both ends of the main body are further provided with fool-proof structures to restrict the anisotropic stacking of a plurality of the battery modules when the battery modules are in the parallel state; and limiting the co-directional stacking of a plurality of battery modules when the battery modules are in the serial state.
8. The battery module according to claim 7, wherein the fool-proof structure comprises a plug pin and a plug hole respectively arranged at two ends of the main body and a blocking structure movably arranged at the bottom of the plug hole, wherein two plug holes are respectively arranged at two sides of the middle of the main body, when two adjacent battery modules are stacked in the same direction or in different directions, the plug pin on one battery module corresponds to the two plug holes on the other battery module respectively, and the blocking structure can movably extend into the bottom of one plug hole to block the plug pin from being inserted into the plug hole and limit the adjacent battery modules from being stacked in the same direction or different directions.
9. The battery module of claim 1, wherein the first and second electrical contacts at one end of the body are configured as plugs and the first and second electrical contacts at the other end of the body are configured as sockets, the plugs on one of the battery modules being inserted into the sockets on the other of the battery modules to be electrically connected.
10. A battery pack comprising a plurality of detachably connected battery modules, the battery modules comprising the battery modules according to any one of claims 1 to 9, and when the battery modules are in the parallel state, two first electrical connection points between two adjacent battery modules are in communication with two second electrical connection points to form a parallel battery pack stacked in the same direction; when the battery modules are in the serial state, the first electric connection points between two adjacent battery modules are communicated with the second electric connection points to form a serial battery pack stacked in different directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311849938.6A CN117712606A (en) | 2023-12-28 | 2023-12-28 | Battery module and battery pack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311849938.6A CN117712606A (en) | 2023-12-28 | 2023-12-28 | Battery module and battery pack |
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| CN117712606A true CN117712606A (en) | 2024-03-15 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504390A (en) * | 2019-06-29 | 2019-11-26 | 华为技术有限公司 | A kind of rectangular cell, battery modules and electric vehicle |
| CN114300764A (en) * | 2021-12-22 | 2022-04-08 | 东莞新能安科技有限公司 | Battery module and energy storage system |
| CN218448181U (en) * | 2022-10-20 | 2023-02-03 | 溧阳中科海钠科技有限责任公司 | Four-port battery pack and energy storage battery cluster |
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2023
- 2023-12-28 CN CN202311849938.6A patent/CN117712606A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504390A (en) * | 2019-06-29 | 2019-11-26 | 华为技术有限公司 | A kind of rectangular cell, battery modules and electric vehicle |
| CN114300764A (en) * | 2021-12-22 | 2022-04-08 | 东莞新能安科技有限公司 | Battery module and energy storage system |
| CN218448181U (en) * | 2022-10-20 | 2023-02-03 | 溧阳中科海钠科技有限责任公司 | Four-port battery pack and energy storage battery cluster |
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